EPA CONTRACT NO EP-S1-06-01EPA TASK ORDER NO 0022-RD-RD-0105

EPA Project Officer Diana KingEPA Task Order Project Managers Richard Goehlert James Brown

DRAFT TASK ORDER PROPOSALFOR

REMEDIAL DESIGN

Ottati and GossKingston Steel Drum Superfund SiteKingston New Hampshire

NOVEMBER 2006

Metcalf amp Eddy Inc701 Edgewater DriveWakefield MA 01880

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10 INTRODUCTION

Metcalf amp Eddy received a Task Order and Statement of Work on September 28 2006 under EPAs Remedial Action Contract (RAC) to provide remedial design support to EPA at the Ottati amp GossKingston Steel Drum Superfund Site in Kingston New Hampshire The EPA Task Order Project Officers (TOPOs) are Richard Goehlert and James Brown

This Task Order Proposal and Cost Estimate (TOPCE) describes the project tasks staffing planning deliverables and costs necessary to perform the work items in the Statement of Work as clarified during a scoping meeting held at EPA on November 3 2006 and a subsequent scope clarifications conference call held with the TOPOs on November 8 2006 A combined set of notes that summarizes the scope changes and clarifications agreed to during the November 3 2006 and November 8 2006 discussions was submitted to EPA on November 13 2006 A copy of the notes is included as Attachment 1

11 Site Description and History

The Ottati amp GossKingston Steel Drum Superfund Site is located in Kingston New Hampshire State highway Route 125 splits the Site (Figures 1 and 2) East of Route 125 is a wetland area and west of Route 125 is the upland area Both areas have been remediated for source control in the vadose zone or the surficial soilssediments under Operable Unit 4 (OU4) Soil and sediment remediation of OU4 was completed in September 2002

The site is approximately 35 acres in size and is divided into two sections 28 acres owned by the Senter Transportation Company and 588 acres owned by the Kingston Steel Drum (KSD)Great Lakes Container Corporation In 1978 the Senter Transportation Company leased a one-acre parcel to Ottati amp Goss Inc Portions of the Site have been used for storage andor reclamation of barrels containing solvents and other organic chemicals

A number of studies have been conducted since the 1980s to investigate contamination at the Site Historically the primary contaminants of concern have been VOCs (including chlorinated VOCs and BTEX) and PCBs In the early 1990s the Site was taken over by EPA and NHDES who have worked to design two areas for Remedial Action groundwater and soilssediments The draft design for groundwater Remedial Action (a groundwater pump-and-treat system) was completed in 1996 but was not constructed awaiting the completion of the soils and sediment remediation (OU4) Since 2002 when the source area remediation was completed groundwater monitoring has been performed at various times by EPA to evaluate the groundwater plume An on-site pilot scale treatability study and aquifer pumping test were performed by MampE for EPA in 2004 under RAC Work Assignment No 152-RDRDshy0105 to collect data needed to update the 1996 groundwater extraction system and treatment design for post-source removal plume conditions During groundwater monitoring efforts performed to plan for the treatability study and pump test work it was found that 14-dioxane was also present in Site groundwater and the 1996 treatment system design was not designed for removaldestruction of 14-dioxane It was also found that concentrations of dissolved iron are very high in certain portions of the plume where groundwater extraction was contemplated leading to very high projected costs for pumping and treating site groundwater and processing iron sludge using conventional above-ground treatment systems Finally it was found that arsenic concentrations in groundwater are elevated in some areas of the Site most likely because of the reducing conditions present in the areas of the plume where organic contaminants are most concentrated While removal of the arsenic was found to be possible during the treatability study because it will co-precipitate with iron the excessive quantities of iron sludge anticipated have led EPA to consider alternatives to groundwater extraction and ex-situ treatment

TO002-TOPCE-112006-100

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EPA has decided to collect data needed evaluate in-situ alternatives to a pump-and-treat system under this Task Order Specifically the Task Order involves 1) vertical profiling and well installation to delineate groundwater contamination in sufficient detail for application of an in-situ technology 2) literature review and bench and on-site pilot-scale evaluation of In Situ Chemical Oxidation (ISCO) for removingdestroying groundwater and soil contaminants in selected areas west of Route 125 3) continued groundwater monitoring to evaluate the plume both before and after pilot-scale ISCO treatment and 4) design of a full-scale ISCO remediation system should the pilot study lead EPA to make the decision to pursue a full-scale ISCO remedy During the November 3 2006 scoping meeting EPA determined that only the vertical profiling effort well installation and a limited literature search for ISCO case studies would be budgeted in this TOPCE The other portions of the scope remain under consideration by EPA and a Task Order Modification for some or all of the other items may be issued by EPA in 2007

20 PROJECT OBJECTIVE

The objective of this task order is to perform the investigatory work associated with delineating the groundwater plume to collect data needed to plan for and execute a future pilot-scale treatability study of ISCO to address contaminated groundwater west of Route 125 Depending on the outcome of the pilot studies a full-scale design for (SCO is also envisioned as a future Task Order Modification

The primary work to be conducted under this TOPCE includes vertical profiling with groundwater sampling and field analysis for VOCs and laboratory analysis for 14-dioxane to better delineate the plume Selected soil samples from the saturated zone will also be collected and analyzed for VOCs to help evaluate the mass of contamination adsorbed to soil for use in designing future ISCO bench and pilot studies Eight new monitoring wells are budgeted for future use in monitoring ISCO pilot studies The eight wells are to be installed in locations to be selected based on the results of the vertical profiling effort A literature review of ISCO case studies and vendor publications is also budgeted to assist EPA in planning for upcoming bench and pilot-scale ISCO studies that will form the scope of a future Task Order

30 TECHNICAL APPROACH

MampE has prepared this technical approach for providing remedial design support in the following areas environmental sampling analytical support data evaluation and a literature search - based on EPAs Statement of Work (SOW) dated September 2006 and the November 3 2006 and November 8 2006 discussions held with EPA and documented in Attachment 1

The technical approach for this assignment includes seven tasks

Task 1 - Project Planning and Support Task 3 - Data Acquisition Task 4 - Sample Analysis Task 5 - Analytical Support and Data Validation Task 6 - Data Evaluation Task 7 - Treatability Study and Pilot Testing Task 13 - Task Order Closeout

Task 11 - PrefinalFinal Design was eliminated from the scope during the November 3 2006 scoping meeting The technical approach and level of effort assumptions for each task are described in this section

TO002-TOPCE-112006-100

31 Project Planning and Support (Task 1)

The following subsections identify the project planning elements necessary to complete the SOW This task consists of project planning attending a scoping meeting and participating in scope clarification discussions preparing notes from the meetingsdiscussions evaluating existing information developing the TOPCE preparation of site-specific plans and project and subcontract management activities

311 Project Planning (Subtask 11) As specified in the SOW this subtask describes the intended work effort for development of this task order proposal This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 - July 4 2007)

3111 Attend Scoping Meeting (Subtask 111) A technical scoping meeting was held at EPA in Boston on November 3 2006 for the purposes of clarifying the scope and technical aspects of the project Five MampE personnel including the RAC deputy program manager RAC contract manager task order manager task order engineer and task order hydrogeologist attended the meeting The meeting was also attended by the EPA TOPOs the EPA Project Officer the EPA Contracting Officer (by phone) the NH Section Chief and the NHDES project manager (by phone) The notes from the meeting are included in Attachment 1 The notes include summaries of both the technical discussions and the scoping discussions

After the November 3 2006 meeting a second meeting was held via conference call with the EPA TOPOs and EPA hydrogeologist to clarify the vertical profiling and well installation effort with respect to technical details regarding soil sampling and equipment limitations in rocky soil The effort for preparation of the QAPP and the deliverables from the vertical profiling effort was also clarified The MampE technical team (task order manager engineer and hydrogeologist) participated in the call The decisions reached during that call are included in the notes in Attachment 1

3113 Evaluate Existing Information (Subtask 113) MampE is evaluating existing Site data and documents including the RIFS the ROD the OU-4 RA Report recent sampling data and the ADL OU 3 Remedial Design In addition MampE has evaluated existing EPA guidance documents and vendor literature regarding ISCO technologies and various types of vertical profiling equipment for applicability to Site conditions to the degree necessary to support development of the TOPCE Site data and boring logs were also compiled for use in discussions with potential subcontractors for the ISCO and vertical profiling portions of the EPA SOW

A medium LOE is budgeted for evaluation of existing information related to ISCO technologies including the following efforts evaluation of the Site plume and hot spots for applicability of ISCO and the potential utility of piloting both hot spots using the same or different oxidants review of EPA guidance documents to develop technical approaches for bench-scale tests and analyses to monitor pilot test effectiveness and discussions with ISCO vendors and review of vendor-supplied publications to identify additional data needs and data collection efforts for design and execution of the pilot studies An additional cursory LOE is budgeted for compilation of existing Site data and boring logs from multiple Site documents and the Site analytical database for use in discussion with ISCO vendors Two low LOE are budgeted for the review of Site analytical data and boring logs to develop a vertical profiling technical approach (including locations for profiling sampling depths and techniques for retrieving the groundwater samples) and compilation and review of potential subcontractor information regarding their vertical profiling equipment and its applicability to the Site A half-cursory LOE is budgeted for review of the RA report to identify areas of the site where cobbles are anticipated to be a problem for most vertical profiling drilling rigs based on discussions with the TOPOs that indicated that such problems were prevalent at another nearby Superfund site Finally a cursory LOE is budgeted for review of the previous QAPP and groundwater analytical data to select analytical methods for the vertical profiling effort and advise the TOPOs on whether analysis for VOCs andor SVOCs in soil samples would be useful to support future treatability work

TO002-TOPCE-112006-100

A substantial portion of the effort related to ISCO technologies was expended before the November 3 meeting with EPA at which EPA decided that the bench and pilot-scale treatability studies would be put on hold and not budgeted in this TOPCE (see Attachment 1) Effort to evaluate vertical profiling equipment and review of data to select analytical methods has also been completed as necessary to allow budgeting of the vertical profiling subpool effort (Task 3) and the analytical laboratory budget (Task 4)

3114 Develop Task Order ProposafCost Estimate (Subtask 114) This subtask involves preparation and submittal of this draft TOPCE for conducting the tasks outlined in the SOW and agreed to during the November 3 2006 scoping meeting and November 8 2006 conference call with EPA This Task Order Proposal has been written to present the work breakdown structure (WBS) based on EPAs SOW and scope clarifications agreed to between EPA and MampE A summary of the clarifications was prepared by MampE and submitted to EPA on November 14 2006 (see Attachment 1) Budget is included for a draft TOPCE and a final cost estimate

Draft Task Order Proposal A narrative has been developed and a cost estimate prepared for the draft TOP The TOP identifies 1) the objectives of the technical tasks identified in the SOW and how these objectives will be met 2) a detailed description of the technical approach for each task and subtask within the WBS provided in the SOW and where appropriate assumptions used information needed information to be produced and work products and 3) a projected schedule for the task order

It is noted that MampE expended effort to begin developing the technical approach and cost estimate for many items in the SOW that have since been put on hold by EPA such as the bench and pilot-scale treatability studies (including LOE subpool and ODC estimates and a technical approach for monitoring the pilot test) the 25 well monitoring rounds (including LOE subpool and ODC estimates plus an analytical approach designed to help support the pilot test as well as monitor the VOC plume) and the data evaluation reports for the 25 well rounds (including technical approach for report content LOE estimate and ODC estimate) The technical and cost information for activities no longer included as part of this TOPCE will remain on file at MampE and it is anticipated that it will be used when EPA issues a Task Order Modification with Amended SOW for those activities

Cost Estimate The TOPCE provides a detailed cost estimate for each task as specified in the WBS provided in the SOW The cost estimate presents the level-of-effort (LOE) in terms of hours by grade level as well as labor costs and other direct costs for each task As noted above effort was expended to develop costs for activities no longer included in the SOW per EPA direction at the November 3 scoping meeting

Final TOPCE It is anticipated that a negotiation meeting by telephone will be conducted between EPA and MampE prior to TOPCE approval It is assumed that MampEs task order manager RAC Deputy Program Manager RAC Contract FinancialAdministration Manager MampEs Project Geologist and MampEs Project Engineer will be in attendance It is further assumed that no resubmittal of the draft TOP will be needed however submittal of a revised cost estimate has been budgeted A low LOE is budgeted for negotiations and revision of the cost estimate The Task Order Proposal requirement of the SOW will be considered to be complete upon EPA approval of the TOP and the final cost estimate

312 Preparation of Site-Specific Plans (Subtask 12) This subtask includes the preparation of a Site-Specific Health and Safety Plan and a Sampling and Analysis Plan (SAP)Field Sampling Plan (FSP) For the SAP one combined document referred to as a Quality Assurance Project Plan (QAPP) will be prepared for this project This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 -Ju ly4 2007)

3121 Site Management Plan (Subtask 121) This subtask has not been budgeted Site managementsecurity issues will instead be described in the Health and Safety Plan

TO002-TOPCE-112006-100 6

3122 Health and Safety Plan (Subtask 122) A Health and Safety Plan (HASP) will be prepared utilizing the previously prepared HASP for this Site The HASP will specify employee training protective equipment medical monitoring requirements standard operating procedures and a contingency plan in accordance with 29 CFR 191020 It is assumed that only one submittal of this plan will be made to EPA One cursory LOE is budgeted for this plan

3123 Sampling and Analysis Plan (Subtask 123) MampE will prepare a Quality Assurance Project Plan (QAPP) in accordance with EPA QAR-5 and the Region I EPA-New England Compendium of Quality Assurance Project Plan Requirements and Guidance (October 1999) The QAPP will describe the project objectives and organization functional activities and QAQC protocols to be used to achieve DQOs The sample collection methods sample locations and frequency sampling equipment and procedures and sample handling and analysis will also be included Whenever possible previously developed Sampling and Analysis Plans and QAPPs for this site will be utilized Based on discussions with the EPA TOPOs on November 8 2006 the QAPP will include a site plan showing proposed vertical profiling locations and a schematic cross-section to illustrate proposed groundwater sampling depths It is assumed that the draft QAPP will be completed within a high plus low LOE and will be based on the groundwater monitoring QAPP from Work Assignment 152 with worksheets and Standard Operating Procedures amplifiedmodified to incorporate protocols for vertical profiling sample collection and analysis including use of a field gas chromatograph (GC) It is assumed that the EPA OEME comments on the draft QAPP will require a low level of effort to be addressed including issuance of revisions to selected worksheets as necessary to address the comments

313 Project Management (Subtask 13) This subtask includes day-to-day management activities such as preparation of monthly progress reports project and staff scheduling monitoring and controlling costs and communications between EPA and MampE Based on the SOW the period-of-performance for this task order is from September 28 2006 through June 30 2008 for a total period of 21 months Of the 21 months 9 months are in Contract Year 1 and 12 months are in Contract Year 2

3131 Prepare Periodic Progress Reports (Subtask 131) It is assumed that 21 monthly progress reports and invoices will be prepared to document project cost and performance during the period-of-performance Nine reports are budgeted for Contract Year 1 and 12 are budgeted for Contract Year 2 The monthly progress reports will document cost and performance status by describing the project status by task anticipated schedules anticipated LOE usage for the following month and any problems or potential problems encountered or anticipated

In addition to monthly reporting the MampE task order manager will be responsible for the overall project coordination scheduling reporting and routine communication with EPA Activities anticipated typically include internal project meetings telephone discussions and electronic mail correspondence with the EPA TOPOs actions as the result of telephoneemail conversations preparing and editing correspondence monitoring and controlling labor hourscosts and actions schedule maintenance and approval staff scheduling project management and staff meetings problem resolution and routine administration for the period-of-performance

It is anticipated that the MampE task order manager will communicate several times weekly or as appropriate with the EPA TOPOs via telephone or e-mail For estimating purposes it is assumed that there will be a high degree of activity for the entire duration of the task order

314 Subcontract Procurement and Support Activities (Subtask 14) Several activities being conducted during field activities and during other tasks in order to complete activities in this SOW will require the services of outside subcontractors The efforts for procurement and management of the different subcontracts are included in this subtask while the estimated costs for the subcontracted work to be performed are included under the respective tasks for which the subcontracts are involved Technical efforts associated with scheduling field work coordination and technical interactions with subcontractors are budgeted under the appropriate field activity and analytical support subtasks

TO002-TOPCE-112006-100 7

3141 Identification and Procurement of Subcontractors (Subtask 141) Several subcontractors will be procured to support field work activities

bull Drilling for Monitoring Well Installation bull Vertical Profiling (to potentially include two subcontracts)

Analytical Services Investigation-Derived Waste (IDW) disposal

For the subcontractors cost estimates include development of specifications and technical SOWs bid review procurement of subcontractors and subcontract initiation activities In addition it is anticipated that half-day site visits will be attended by one MampE technical staff to meet with the drilling and vertical profiling bidders to evaluate the site and field conditions All quotations will be solicited on a competitive basis whenever possible

In addition to the above mentioned subcontracts DAS laboratories may be required to perform the 14-dioxane analyses for the vertical profiling sampling effort which is described in Section 3324 The OEME laboratory may perform the 14-dioxane analyses but DAS analyses are being budgeted in the event that the OEME laboratory does not have the capacity to perform the analyses when the vertical profiling event is performed For the cost estimate it is assumed that analytical specifications developed under the DAS Task Order and laboratories pre-qualified under the DAS Task Order will be used therefore no technical effort has been budgeted for procurement of the analytical laboratories

Drilling A drilling subcontract will be awarded to a firm to install 8 new monitoring wells When available to minimize costs MampE will utilize previously prepared Requests for Proposals (RFPs) to solicit this new subcontractor In total 23 hours have been budgeted to procure the drilling subcontractor which includes one cursory LOE to prepare the scope of work one cursory to prepare for and attend a site visit with the bidders and 3 hours to issue the subcontract

Vertical Profiling For vertical profiling to date MampE has identified only one subcontractor with the type of equipment recommended by EPA as necessary for this site because of the difficult drilling conditions (rocky soil) That subcontractor has told MampE that they have only one rig of that type MampE is attempting to identify other subcontractors with similar equipment so that competitive bids may be obtained and so that two rigs of similar type can be mobilized to the site If another local subcontractor with the EPA-recommended equipment cannot be located it may be necessary to prepare a sole-source procurement justification for the vertical profiling effort The LOE estimate for vertical profiling procurement is based on two separate procurements (so that two rigs may be utilized) The budget to procure the vertical profiling subcontractors includes one cursory LOE to identify more providers of a specialized vertical profiling rig one cursory LOE to prepare the scope of work (tailored to the specific equipment requirements) one cursory LOE to prepare for and conduct a site visit with the bidders and 6 hours to issue a subcontract to two separate bidders In addition 16 hours have been budgeted to prepare sole source justification memos for both of the subcontracts since it is likely that MampE will be unable to find multiple suppliers of such specialized equipment

Analytical Services Delivery of Analytical Services (DAS) laboratories may be utilized for analyses for 14-dioxane Laboratories pre-qualified under the DAS Work Assignment will be used No technical effort has been budgeted for procurement of the analytical laboratories subcontract management time or for the approval of the invoice Technical effort to prepare the DAS work order and hold a technical kickoff conference call with the laboratory is included under Task 52

Waste Disposal The waste disposal services being subcontracted will consist of removal from the site and disposal of IDW that will be generated during the field activities It is anticipated that the IDW will consist of contaminated personal protective equipment (PPE) decontamination

TO002-TOPCE-112006-100 8

fluids soils from the well installation and development and purge water from the groundwater wells and vertical profiling locations The IDW will be collected into 55-gallon drums which will be temporarily stored within the fenced-in site area It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil from the well installations and 2 drums of PPE for a total of 15 drums will be generated during field activities at the site To minimize costs MampE will utilize previously prepared Requests for Proposals to solicit this subcontractor One cursory LOE has been budgeted for preparation of the scope of work and to prepare required paperwork and coordinate with the waste disposal subcontractor In addition 3 hours have been budgeted to issue the subcontract to the selected bidder

For estimating purposes it is assumed that analytical data from environmental samples collected during the vertical profiling event will be sufficient to characterize the drum contents for bidding purposes and that only minimal additional testing of drum contents by the subcontractor will be needed prior to their removal It is also assumed that no more than 15 drums of waste will require disposal It is further assumed that the drum pick-up can be coordinated with field work activities and that removal of all drums can be completed within one half-day site visit (budgeted under Subtask 3210) to be scheduled after completion of both the vertical profiling effort and the well installation effort

3142 QA Program for Subcontractors (Subtask 142) MampE will provide QA oversight andor review of deliverables as appropriate for the subcontractors (drilling vertical profiling waste disposal analytical laboratory) being procured as part of this task order For the drilling vertical profiling and waste disposal subcontractors on-going monitoring of the services will be overseen during the field work by MampE technical field personnel in Subtask 324 For the analytical laboratory subcontract effort has been included for technical review of submittals (data electronic files etc) under Task 5 Therefore no budget is included under this subtask

3143 Subcontract Management (Subtask 143) The activities budgeted under this subtask include invoice review approval and payment for each of the subcontracts The cost estimate for invoice review assumes that each subcontractor will submit one invoice for a total of 5 invoices requiring review (one driller two vertical profiling subcontractors one DAS laboratory and one IDW disposal subcontractor) In total under 2 low LOE have been budgeted for this subtask

33 Data Acquisition (Task 3)

This task includes work efforts to plan and execute Pre-Design field activities for the possible implementation of In Situ Chemical Oxidation (ISCO) at the Ottati and Goss site The pre- and post-fieldwork LOE for each field task varies based on the number of people on a field team and the required post-fieldwork paper work Mobilization and demobilization efforts consist of tasks necessary to prepare and equip the field team for completing activities in the field and upon return to the office including preshyand post-office support of field work activities As part of this subtask the costs for mobilizationdemobilization efforts and support field efforts including the daily monitoring of field schedule and work completed and daily communications with field staff and EPA have been budgeted for each of the field activities

Mobilization efforts including pre-field work (office support) tasks consist of coordination and planningscheduling of daily field work and field events preparation of field-related paperwork (field log books sampling sheets air bills sample labels chain-of-custodies and traffic reports) and equipment and vehicle mobilization As part of each field activity a pre-field meeting will be held which typically includes attendance by the MampE Task Order Manager Project Hydrogeologist Project Chemist and relevant field personnel Time is also allotted for field personnel to read the HASP and QAPP In addition costs have been included to coordinate with the different subcontractors prior to commencement of field activities Demobilization efforts including equipment and vehicle demobilization maintenance of field equipment and post-field paperwork are also performed for each field activity

TO002-TOPCE-112006-100 9

The mobilization demobilization and pre- and post- fieldwork LOE for each task are different based on the type of task A higher amount of LOE for mobilization and de-mobilization has been budgeted for actual field work performed by MampE such as the vertical profiling sampling as opposed to oversight of well installation The pre- and post- fieldwork LOE also varies based on the number of people on a field team and the required post-fieldwork paper work An example of these includes LOE to read the QAPP and HASP would be greater for a larger field team and post-paperwork after well installation would include preparing and reviewing all of the boring logs

During all field activities each field team will maintain a field log book as well as other relevant log books typically used in the field The information to be recorded in the log book will be detailed in the QAPP and at a minimum will include information for each day on the site

Photographs will be taken to document site conditions and other pertinent observations and relevant photographs will be organized and compiled into photologs (labeled identified and dated) for submittal to EPA Any unusual events or deviations from project-specific documents will be recorded During field work it is anticipated that daily communications between field team personnel the MampE task order manager Project Hydrogeologist and Chemist and EPA will be maintained Technical effort has been budgeted for the respective field activities to support this necessary and frequent communication

A brief summary of the LOE has been included with the specific task Field days are assumed to be twelve (12) hours in length unless otherwise specified Each field task also includes LOE for pre- and post- field work activities

331 Mobilization and Demobilization of Field Activities Subtask 31) This subtask includes LOE and other direct costs (ODCs) to perform the following field activities MobilizationDemobilization of temporary facilities and Site Restoration The facilities include laboratoryfield office trailer steps laboratory equipment (field gas chromatograph and supporting equipment) and portable toilet Power also needs to be restored to the on-site trailer Mobilization activities are budgeted for Contract Year 1 and demobilization activities are budgeted for Contract Year 2

3311 Identify Field Support Equipment Supplies and Facilities Subtask 311) As part of the work identified in Subtask 332 MampE has included all ODCs for the necessary equipment to mobilize a field laboratory within the on-site MampE trailer currently present at the site and to coordinate with the power company to oversee restoration of power to the trailer A low LOE in Contract Year 1 has been allocated for identifying field support equipment supplies and facilities

3312 Mobilization (Subtask 312) A cursory LOE is budgeted for coordination with the power company including a half-day site visit (4 hours by one person) to oversee restoration of power In addition two half-day site visits (4 hours each by one person) are budgeted to oversee mobilization of the portable toilet and the trailer steps to the site Site visits will be combined whenever possible to reduce costs for mobilization The mobilization budget is included in Contract Year 1

3313 Demobilization (Subtask 313) The demobilization of the site including all temporary facilities and utilities will occur when all field tasks have been completed It is anticipated that it will take one (1) MampE staff member two 8-hour field days (including travel tofrom the site) to oversee the removal of all temporary facilities including the site trailer portable toilet and disconnection of power from the trailer The demobilization budget is included in Contract Year 2

332 Field Investigation (Subtask 32) As per MampEs scoping meeting with EPA on November 3 2006 this task involves vertical profiling in two areas of the site with collection of groundwater and soil samples and the installation of eight new monitoring wells for future use in monitoring a planned pilot-scale treatability test of the ISCO technology Other field tasks identifed in the EPA SOW are being deferred as described in the scoping meeting notes (see Attachment 1)

TO002-TOPCE-112006-100 10

The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

TO002-TOPCE-112006-100 11

been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

TO002-TOPCE-112006-100 12

member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

TO002-TOPCE-112006-100 13

10 INTRODUCTION

Metcalf amp Eddy received a Task Order and Statement of Work on September 28 2006 under EPAs Remedial Action Contract (RAC) to provide remedial design support to EPA at the Ottati amp GossKingston Steel Drum Superfund Site in Kingston New Hampshire The EPA Task Order Project Officers (TOPOs) are Richard Goehlert and James Brown

This Task Order Proposal and Cost Estimate (TOPCE) describes the project tasks staffing planning deliverables and costs necessary to perform the work items in the Statement of Work as clarified during a scoping meeting held at EPA on November 3 2006 and a subsequent scope clarifications conference call held with the TOPOs on November 8 2006 A combined set of notes that summarizes the scope changes and clarifications agreed to during the November 3 2006 and November 8 2006 discussions was submitted to EPA on November 13 2006 A copy of the notes is included as Attachment 1

11 Site Description and History

The Ottati amp GossKingston Steel Drum Superfund Site is located in Kingston New Hampshire State highway Route 125 splits the Site (Figures 1 and 2) East of Route 125 is a wetland area and west of Route 125 is the upland area Both areas have been remediated for source control in the vadose zone or the surficial soilssediments under Operable Unit 4 (OU4) Soil and sediment remediation of OU4 was completed in September 2002

The site is approximately 35 acres in size and is divided into two sections 28 acres owned by the Senter Transportation Company and 588 acres owned by the Kingston Steel Drum (KSD)Great Lakes Container Corporation In 1978 the Senter Transportation Company leased a one-acre parcel to Ottati amp Goss Inc Portions of the Site have been used for storage andor reclamation of barrels containing solvents and other organic chemicals

A number of studies have been conducted since the 1980s to investigate contamination at the Site Historically the primary contaminants of concern have been VOCs (including chlorinated VOCs and BTEX) and PCBs In the early 1990s the Site was taken over by EPA and NHDES who have worked to design two areas for Remedial Action groundwater and soilssediments The draft design for groundwater Remedial Action (a groundwater pump-and-treat system) was completed in 1996 but was not constructed awaiting the completion of the soils and sediment remediation (OU4) Since 2002 when the source area remediation was completed groundwater monitoring has been performed at various times by EPA to evaluate the groundwater plume An on-site pilot scale treatability study and aquifer pumping test were performed by MampE for EPA in 2004 under RAC Work Assignment No 152-RDRDshy0105 to collect data needed to update the 1996 groundwater extraction system and treatment design for post-source removal plume conditions During groundwater monitoring efforts performed to plan for the treatability study and pump test work it was found that 14-dioxane was also present in Site groundwater and the 1996 treatment system design was not designed for removaldestruction of 14-dioxane It was also found that concentrations of dissolved iron are very high in certain portions of the plume where groundwater extraction was contemplated leading to very high projected costs for pumping and treating site groundwater and processing iron sludge using conventional above-ground treatment systems Finally it was found that arsenic concentrations in groundwater are elevated in some areas of the Site most likely because of the reducing conditions present in the areas of the plume where organic contaminants are most concentrated While removal of the arsenic was found to be possible during the treatability study because it will co-precipitate with iron the excessive quantities of iron sludge anticipated have led EPA to consider alternatives to groundwater extraction and ex-situ treatment

TO002-TOPCE-112006-100

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EPA has decided to collect data needed evaluate in-situ alternatives to a pump-and-treat system under this Task Order Specifically the Task Order involves 1) vertical profiling and well installation to delineate groundwater contamination in sufficient detail for application of an in-situ technology 2) literature review and bench and on-site pilot-scale evaluation of In Situ Chemical Oxidation (ISCO) for removingdestroying groundwater and soil contaminants in selected areas west of Route 125 3) continued groundwater monitoring to evaluate the plume both before and after pilot-scale ISCO treatment and 4) design of a full-scale ISCO remediation system should the pilot study lead EPA to make the decision to pursue a full-scale ISCO remedy During the November 3 2006 scoping meeting EPA determined that only the vertical profiling effort well installation and a limited literature search for ISCO case studies would be budgeted in this TOPCE The other portions of the scope remain under consideration by EPA and a Task Order Modification for some or all of the other items may be issued by EPA in 2007

20 PROJECT OBJECTIVE

The objective of this task order is to perform the investigatory work associated with delineating the groundwater plume to collect data needed to plan for and execute a future pilot-scale treatability study of ISCO to address contaminated groundwater west of Route 125 Depending on the outcome of the pilot studies a full-scale design for (SCO is also envisioned as a future Task Order Modification

The primary work to be conducted under this TOPCE includes vertical profiling with groundwater sampling and field analysis for VOCs and laboratory analysis for 14-dioxane to better delineate the plume Selected soil samples from the saturated zone will also be collected and analyzed for VOCs to help evaluate the mass of contamination adsorbed to soil for use in designing future ISCO bench and pilot studies Eight new monitoring wells are budgeted for future use in monitoring ISCO pilot studies The eight wells are to be installed in locations to be selected based on the results of the vertical profiling effort A literature review of ISCO case studies and vendor publications is also budgeted to assist EPA in planning for upcoming bench and pilot-scale ISCO studies that will form the scope of a future Task Order

30 TECHNICAL APPROACH

MampE has prepared this technical approach for providing remedial design support in the following areas environmental sampling analytical support data evaluation and a literature search - based on EPAs Statement of Work (SOW) dated September 2006 and the November 3 2006 and November 8 2006 discussions held with EPA and documented in Attachment 1

The technical approach for this assignment includes seven tasks

Task 1 - Project Planning and Support Task 3 - Data Acquisition Task 4 - Sample Analysis Task 5 - Analytical Support and Data Validation Task 6 - Data Evaluation Task 7 - Treatability Study and Pilot Testing Task 13 - Task Order Closeout

Task 11 - PrefinalFinal Design was eliminated from the scope during the November 3 2006 scoping meeting The technical approach and level of effort assumptions for each task are described in this section

TO002-TOPCE-112006-100

31 Project Planning and Support (Task 1)

The following subsections identify the project planning elements necessary to complete the SOW This task consists of project planning attending a scoping meeting and participating in scope clarification discussions preparing notes from the meetingsdiscussions evaluating existing information developing the TOPCE preparation of site-specific plans and project and subcontract management activities

311 Project Planning (Subtask 11) As specified in the SOW this subtask describes the intended work effort for development of this task order proposal This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 - July 4 2007)

3111 Attend Scoping Meeting (Subtask 111) A technical scoping meeting was held at EPA in Boston on November 3 2006 for the purposes of clarifying the scope and technical aspects of the project Five MampE personnel including the RAC deputy program manager RAC contract manager task order manager task order engineer and task order hydrogeologist attended the meeting The meeting was also attended by the EPA TOPOs the EPA Project Officer the EPA Contracting Officer (by phone) the NH Section Chief and the NHDES project manager (by phone) The notes from the meeting are included in Attachment 1 The notes include summaries of both the technical discussions and the scoping discussions

After the November 3 2006 meeting a second meeting was held via conference call with the EPA TOPOs and EPA hydrogeologist to clarify the vertical profiling and well installation effort with respect to technical details regarding soil sampling and equipment limitations in rocky soil The effort for preparation of the QAPP and the deliverables from the vertical profiling effort was also clarified The MampE technical team (task order manager engineer and hydrogeologist) participated in the call The decisions reached during that call are included in the notes in Attachment 1

3113 Evaluate Existing Information (Subtask 113) MampE is evaluating existing Site data and documents including the RIFS the ROD the OU-4 RA Report recent sampling data and the ADL OU 3 Remedial Design In addition MampE has evaluated existing EPA guidance documents and vendor literature regarding ISCO technologies and various types of vertical profiling equipment for applicability to Site conditions to the degree necessary to support development of the TOPCE Site data and boring logs were also compiled for use in discussions with potential subcontractors for the ISCO and vertical profiling portions of the EPA SOW

A medium LOE is budgeted for evaluation of existing information related to ISCO technologies including the following efforts evaluation of the Site plume and hot spots for applicability of ISCO and the potential utility of piloting both hot spots using the same or different oxidants review of EPA guidance documents to develop technical approaches for bench-scale tests and analyses to monitor pilot test effectiveness and discussions with ISCO vendors and review of vendor-supplied publications to identify additional data needs and data collection efforts for design and execution of the pilot studies An additional cursory LOE is budgeted for compilation of existing Site data and boring logs from multiple Site documents and the Site analytical database for use in discussion with ISCO vendors Two low LOE are budgeted for the review of Site analytical data and boring logs to develop a vertical profiling technical approach (including locations for profiling sampling depths and techniques for retrieving the groundwater samples) and compilation and review of potential subcontractor information regarding their vertical profiling equipment and its applicability to the Site A half-cursory LOE is budgeted for review of the RA report to identify areas of the site where cobbles are anticipated to be a problem for most vertical profiling drilling rigs based on discussions with the TOPOs that indicated that such problems were prevalent at another nearby Superfund site Finally a cursory LOE is budgeted for review of the previous QAPP and groundwater analytical data to select analytical methods for the vertical profiling effort and advise the TOPOs on whether analysis for VOCs andor SVOCs in soil samples would be useful to support future treatability work

TO002-TOPCE-112006-100

A substantial portion of the effort related to ISCO technologies was expended before the November 3 meeting with EPA at which EPA decided that the bench and pilot-scale treatability studies would be put on hold and not budgeted in this TOPCE (see Attachment 1) Effort to evaluate vertical profiling equipment and review of data to select analytical methods has also been completed as necessary to allow budgeting of the vertical profiling subpool effort (Task 3) and the analytical laboratory budget (Task 4)

3114 Develop Task Order ProposafCost Estimate (Subtask 114) This subtask involves preparation and submittal of this draft TOPCE for conducting the tasks outlined in the SOW and agreed to during the November 3 2006 scoping meeting and November 8 2006 conference call with EPA This Task Order Proposal has been written to present the work breakdown structure (WBS) based on EPAs SOW and scope clarifications agreed to between EPA and MampE A summary of the clarifications was prepared by MampE and submitted to EPA on November 14 2006 (see Attachment 1) Budget is included for a draft TOPCE and a final cost estimate

Draft Task Order Proposal A narrative has been developed and a cost estimate prepared for the draft TOP The TOP identifies 1) the objectives of the technical tasks identified in the SOW and how these objectives will be met 2) a detailed description of the technical approach for each task and subtask within the WBS provided in the SOW and where appropriate assumptions used information needed information to be produced and work products and 3) a projected schedule for the task order

It is noted that MampE expended effort to begin developing the technical approach and cost estimate for many items in the SOW that have since been put on hold by EPA such as the bench and pilot-scale treatability studies (including LOE subpool and ODC estimates and a technical approach for monitoring the pilot test) the 25 well monitoring rounds (including LOE subpool and ODC estimates plus an analytical approach designed to help support the pilot test as well as monitor the VOC plume) and the data evaluation reports for the 25 well rounds (including technical approach for report content LOE estimate and ODC estimate) The technical and cost information for activities no longer included as part of this TOPCE will remain on file at MampE and it is anticipated that it will be used when EPA issues a Task Order Modification with Amended SOW for those activities

Cost Estimate The TOPCE provides a detailed cost estimate for each task as specified in the WBS provided in the SOW The cost estimate presents the level-of-effort (LOE) in terms of hours by grade level as well as labor costs and other direct costs for each task As noted above effort was expended to develop costs for activities no longer included in the SOW per EPA direction at the November 3 scoping meeting

Final TOPCE It is anticipated that a negotiation meeting by telephone will be conducted between EPA and MampE prior to TOPCE approval It is assumed that MampEs task order manager RAC Deputy Program Manager RAC Contract FinancialAdministration Manager MampEs Project Geologist and MampEs Project Engineer will be in attendance It is further assumed that no resubmittal of the draft TOP will be needed however submittal of a revised cost estimate has been budgeted A low LOE is budgeted for negotiations and revision of the cost estimate The Task Order Proposal requirement of the SOW will be considered to be complete upon EPA approval of the TOP and the final cost estimate

312 Preparation of Site-Specific Plans (Subtask 12) This subtask includes the preparation of a Site-Specific Health and Safety Plan and a Sampling and Analysis Plan (SAP)Field Sampling Plan (FSP) For the SAP one combined document referred to as a Quality Assurance Project Plan (QAPP) will be prepared for this project This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 -Ju ly4 2007)

3121 Site Management Plan (Subtask 121) This subtask has not been budgeted Site managementsecurity issues will instead be described in the Health and Safety Plan

TO002-TOPCE-112006-100 6

3122 Health and Safety Plan (Subtask 122) A Health and Safety Plan (HASP) will be prepared utilizing the previously prepared HASP for this Site The HASP will specify employee training protective equipment medical monitoring requirements standard operating procedures and a contingency plan in accordance with 29 CFR 191020 It is assumed that only one submittal of this plan will be made to EPA One cursory LOE is budgeted for this plan

3123 Sampling and Analysis Plan (Subtask 123) MampE will prepare a Quality Assurance Project Plan (QAPP) in accordance with EPA QAR-5 and the Region I EPA-New England Compendium of Quality Assurance Project Plan Requirements and Guidance (October 1999) The QAPP will describe the project objectives and organization functional activities and QAQC protocols to be used to achieve DQOs The sample collection methods sample locations and frequency sampling equipment and procedures and sample handling and analysis will also be included Whenever possible previously developed Sampling and Analysis Plans and QAPPs for this site will be utilized Based on discussions with the EPA TOPOs on November 8 2006 the QAPP will include a site plan showing proposed vertical profiling locations and a schematic cross-section to illustrate proposed groundwater sampling depths It is assumed that the draft QAPP will be completed within a high plus low LOE and will be based on the groundwater monitoring QAPP from Work Assignment 152 with worksheets and Standard Operating Procedures amplifiedmodified to incorporate protocols for vertical profiling sample collection and analysis including use of a field gas chromatograph (GC) It is assumed that the EPA OEME comments on the draft QAPP will require a low level of effort to be addressed including issuance of revisions to selected worksheets as necessary to address the comments

313 Project Management (Subtask 13) This subtask includes day-to-day management activities such as preparation of monthly progress reports project and staff scheduling monitoring and controlling costs and communications between EPA and MampE Based on the SOW the period-of-performance for this task order is from September 28 2006 through June 30 2008 for a total period of 21 months Of the 21 months 9 months are in Contract Year 1 and 12 months are in Contract Year 2

3131 Prepare Periodic Progress Reports (Subtask 131) It is assumed that 21 monthly progress reports and invoices will be prepared to document project cost and performance during the period-of-performance Nine reports are budgeted for Contract Year 1 and 12 are budgeted for Contract Year 2 The monthly progress reports will document cost and performance status by describing the project status by task anticipated schedules anticipated LOE usage for the following month and any problems or potential problems encountered or anticipated

In addition to monthly reporting the MampE task order manager will be responsible for the overall project coordination scheduling reporting and routine communication with EPA Activities anticipated typically include internal project meetings telephone discussions and electronic mail correspondence with the EPA TOPOs actions as the result of telephoneemail conversations preparing and editing correspondence monitoring and controlling labor hourscosts and actions schedule maintenance and approval staff scheduling project management and staff meetings problem resolution and routine administration for the period-of-performance

It is anticipated that the MampE task order manager will communicate several times weekly or as appropriate with the EPA TOPOs via telephone or e-mail For estimating purposes it is assumed that there will be a high degree of activity for the entire duration of the task order

314 Subcontract Procurement and Support Activities (Subtask 14) Several activities being conducted during field activities and during other tasks in order to complete activities in this SOW will require the services of outside subcontractors The efforts for procurement and management of the different subcontracts are included in this subtask while the estimated costs for the subcontracted work to be performed are included under the respective tasks for which the subcontracts are involved Technical efforts associated with scheduling field work coordination and technical interactions with subcontractors are budgeted under the appropriate field activity and analytical support subtasks

TO002-TOPCE-112006-100 7

3141 Identification and Procurement of Subcontractors (Subtask 141) Several subcontractors will be procured to support field work activities

bull Drilling for Monitoring Well Installation bull Vertical Profiling (to potentially include two subcontracts)

Analytical Services Investigation-Derived Waste (IDW) disposal

For the subcontractors cost estimates include development of specifications and technical SOWs bid review procurement of subcontractors and subcontract initiation activities In addition it is anticipated that half-day site visits will be attended by one MampE technical staff to meet with the drilling and vertical profiling bidders to evaluate the site and field conditions All quotations will be solicited on a competitive basis whenever possible

In addition to the above mentioned subcontracts DAS laboratories may be required to perform the 14-dioxane analyses for the vertical profiling sampling effort which is described in Section 3324 The OEME laboratory may perform the 14-dioxane analyses but DAS analyses are being budgeted in the event that the OEME laboratory does not have the capacity to perform the analyses when the vertical profiling event is performed For the cost estimate it is assumed that analytical specifications developed under the DAS Task Order and laboratories pre-qualified under the DAS Task Order will be used therefore no technical effort has been budgeted for procurement of the analytical laboratories

Drilling A drilling subcontract will be awarded to a firm to install 8 new monitoring wells When available to minimize costs MampE will utilize previously prepared Requests for Proposals (RFPs) to solicit this new subcontractor In total 23 hours have been budgeted to procure the drilling subcontractor which includes one cursory LOE to prepare the scope of work one cursory to prepare for and attend a site visit with the bidders and 3 hours to issue the subcontract

Vertical Profiling For vertical profiling to date MampE has identified only one subcontractor with the type of equipment recommended by EPA as necessary for this site because of the difficult drilling conditions (rocky soil) That subcontractor has told MampE that they have only one rig of that type MampE is attempting to identify other subcontractors with similar equipment so that competitive bids may be obtained and so that two rigs of similar type can be mobilized to the site If another local subcontractor with the EPA-recommended equipment cannot be located it may be necessary to prepare a sole-source procurement justification for the vertical profiling effort The LOE estimate for vertical profiling procurement is based on two separate procurements (so that two rigs may be utilized) The budget to procure the vertical profiling subcontractors includes one cursory LOE to identify more providers of a specialized vertical profiling rig one cursory LOE to prepare the scope of work (tailored to the specific equipment requirements) one cursory LOE to prepare for and conduct a site visit with the bidders and 6 hours to issue a subcontract to two separate bidders In addition 16 hours have been budgeted to prepare sole source justification memos for both of the subcontracts since it is likely that MampE will be unable to find multiple suppliers of such specialized equipment

Analytical Services Delivery of Analytical Services (DAS) laboratories may be utilized for analyses for 14-dioxane Laboratories pre-qualified under the DAS Work Assignment will be used No technical effort has been budgeted for procurement of the analytical laboratories subcontract management time or for the approval of the invoice Technical effort to prepare the DAS work order and hold a technical kickoff conference call with the laboratory is included under Task 52

Waste Disposal The waste disposal services being subcontracted will consist of removal from the site and disposal of IDW that will be generated during the field activities It is anticipated that the IDW will consist of contaminated personal protective equipment (PPE) decontamination

TO002-TOPCE-112006-100 8

fluids soils from the well installation and development and purge water from the groundwater wells and vertical profiling locations The IDW will be collected into 55-gallon drums which will be temporarily stored within the fenced-in site area It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil from the well installations and 2 drums of PPE for a total of 15 drums will be generated during field activities at the site To minimize costs MampE will utilize previously prepared Requests for Proposals to solicit this subcontractor One cursory LOE has been budgeted for preparation of the scope of work and to prepare required paperwork and coordinate with the waste disposal subcontractor In addition 3 hours have been budgeted to issue the subcontract to the selected bidder

For estimating purposes it is assumed that analytical data from environmental samples collected during the vertical profiling event will be sufficient to characterize the drum contents for bidding purposes and that only minimal additional testing of drum contents by the subcontractor will be needed prior to their removal It is also assumed that no more than 15 drums of waste will require disposal It is further assumed that the drum pick-up can be coordinated with field work activities and that removal of all drums can be completed within one half-day site visit (budgeted under Subtask 3210) to be scheduled after completion of both the vertical profiling effort and the well installation effort

3142 QA Program for Subcontractors (Subtask 142) MampE will provide QA oversight andor review of deliverables as appropriate for the subcontractors (drilling vertical profiling waste disposal analytical laboratory) being procured as part of this task order For the drilling vertical profiling and waste disposal subcontractors on-going monitoring of the services will be overseen during the field work by MampE technical field personnel in Subtask 324 For the analytical laboratory subcontract effort has been included for technical review of submittals (data electronic files etc) under Task 5 Therefore no budget is included under this subtask

3143 Subcontract Management (Subtask 143) The activities budgeted under this subtask include invoice review approval and payment for each of the subcontracts The cost estimate for invoice review assumes that each subcontractor will submit one invoice for a total of 5 invoices requiring review (one driller two vertical profiling subcontractors one DAS laboratory and one IDW disposal subcontractor) In total under 2 low LOE have been budgeted for this subtask

33 Data Acquisition (Task 3)

This task includes work efforts to plan and execute Pre-Design field activities for the possible implementation of In Situ Chemical Oxidation (ISCO) at the Ottati and Goss site The pre- and post-fieldwork LOE for each field task varies based on the number of people on a field team and the required post-fieldwork paper work Mobilization and demobilization efforts consist of tasks necessary to prepare and equip the field team for completing activities in the field and upon return to the office including preshyand post-office support of field work activities As part of this subtask the costs for mobilizationdemobilization efforts and support field efforts including the daily monitoring of field schedule and work completed and daily communications with field staff and EPA have been budgeted for each of the field activities

Mobilization efforts including pre-field work (office support) tasks consist of coordination and planningscheduling of daily field work and field events preparation of field-related paperwork (field log books sampling sheets air bills sample labels chain-of-custodies and traffic reports) and equipment and vehicle mobilization As part of each field activity a pre-field meeting will be held which typically includes attendance by the MampE Task Order Manager Project Hydrogeologist Project Chemist and relevant field personnel Time is also allotted for field personnel to read the HASP and QAPP In addition costs have been included to coordinate with the different subcontractors prior to commencement of field activities Demobilization efforts including equipment and vehicle demobilization maintenance of field equipment and post-field paperwork are also performed for each field activity

TO002-TOPCE-112006-100 9

The mobilization demobilization and pre- and post- fieldwork LOE for each task are different based on the type of task A higher amount of LOE for mobilization and de-mobilization has been budgeted for actual field work performed by MampE such as the vertical profiling sampling as opposed to oversight of well installation The pre- and post- fieldwork LOE also varies based on the number of people on a field team and the required post-fieldwork paper work An example of these includes LOE to read the QAPP and HASP would be greater for a larger field team and post-paperwork after well installation would include preparing and reviewing all of the boring logs

During all field activities each field team will maintain a field log book as well as other relevant log books typically used in the field The information to be recorded in the log book will be detailed in the QAPP and at a minimum will include information for each day on the site

Photographs will be taken to document site conditions and other pertinent observations and relevant photographs will be organized and compiled into photologs (labeled identified and dated) for submittal to EPA Any unusual events or deviations from project-specific documents will be recorded During field work it is anticipated that daily communications between field team personnel the MampE task order manager Project Hydrogeologist and Chemist and EPA will be maintained Technical effort has been budgeted for the respective field activities to support this necessary and frequent communication

A brief summary of the LOE has been included with the specific task Field days are assumed to be twelve (12) hours in length unless otherwise specified Each field task also includes LOE for pre- and post- field work activities

331 Mobilization and Demobilization of Field Activities Subtask 31) This subtask includes LOE and other direct costs (ODCs) to perform the following field activities MobilizationDemobilization of temporary facilities and Site Restoration The facilities include laboratoryfield office trailer steps laboratory equipment (field gas chromatograph and supporting equipment) and portable toilet Power also needs to be restored to the on-site trailer Mobilization activities are budgeted for Contract Year 1 and demobilization activities are budgeted for Contract Year 2

3311 Identify Field Support Equipment Supplies and Facilities Subtask 311) As part of the work identified in Subtask 332 MampE has included all ODCs for the necessary equipment to mobilize a field laboratory within the on-site MampE trailer currently present at the site and to coordinate with the power company to oversee restoration of power to the trailer A low LOE in Contract Year 1 has been allocated for identifying field support equipment supplies and facilities

3312 Mobilization (Subtask 312) A cursory LOE is budgeted for coordination with the power company including a half-day site visit (4 hours by one person) to oversee restoration of power In addition two half-day site visits (4 hours each by one person) are budgeted to oversee mobilization of the portable toilet and the trailer steps to the site Site visits will be combined whenever possible to reduce costs for mobilization The mobilization budget is included in Contract Year 1

3313 Demobilization (Subtask 313) The demobilization of the site including all temporary facilities and utilities will occur when all field tasks have been completed It is anticipated that it will take one (1) MampE staff member two 8-hour field days (including travel tofrom the site) to oversee the removal of all temporary facilities including the site trailer portable toilet and disconnection of power from the trailer The demobilization budget is included in Contract Year 2

332 Field Investigation (Subtask 32) As per MampEs scoping meeting with EPA on November 3 2006 this task involves vertical profiling in two areas of the site with collection of groundwater and soil samples and the installation of eight new monitoring wells for future use in monitoring a planned pilot-scale treatability test of the ISCO technology Other field tasks identifed in the EPA SOW are being deferred as described in the scoping meeting notes (see Attachment 1)

TO002-TOPCE-112006-100 10

The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

TO002-TOPCE-112006-100 11

been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

TO002-TOPCE-112006-100 12

member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

TO002-TOPCE-112006-100 13

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EPA has decided to collect data needed evaluate in-situ alternatives to a pump-and-treat system under this Task Order Specifically the Task Order involves 1) vertical profiling and well installation to delineate groundwater contamination in sufficient detail for application of an in-situ technology 2) literature review and bench and on-site pilot-scale evaluation of In Situ Chemical Oxidation (ISCO) for removingdestroying groundwater and soil contaminants in selected areas west of Route 125 3) continued groundwater monitoring to evaluate the plume both before and after pilot-scale ISCO treatment and 4) design of a full-scale ISCO remediation system should the pilot study lead EPA to make the decision to pursue a full-scale ISCO remedy During the November 3 2006 scoping meeting EPA determined that only the vertical profiling effort well installation and a limited literature search for ISCO case studies would be budgeted in this TOPCE The other portions of the scope remain under consideration by EPA and a Task Order Modification for some or all of the other items may be issued by EPA in 2007

20 PROJECT OBJECTIVE

The objective of this task order is to perform the investigatory work associated with delineating the groundwater plume to collect data needed to plan for and execute a future pilot-scale treatability study of ISCO to address contaminated groundwater west of Route 125 Depending on the outcome of the pilot studies a full-scale design for (SCO is also envisioned as a future Task Order Modification

The primary work to be conducted under this TOPCE includes vertical profiling with groundwater sampling and field analysis for VOCs and laboratory analysis for 14-dioxane to better delineate the plume Selected soil samples from the saturated zone will also be collected and analyzed for VOCs to help evaluate the mass of contamination adsorbed to soil for use in designing future ISCO bench and pilot studies Eight new monitoring wells are budgeted for future use in monitoring ISCO pilot studies The eight wells are to be installed in locations to be selected based on the results of the vertical profiling effort A literature review of ISCO case studies and vendor publications is also budgeted to assist EPA in planning for upcoming bench and pilot-scale ISCO studies that will form the scope of a future Task Order

30 TECHNICAL APPROACH

MampE has prepared this technical approach for providing remedial design support in the following areas environmental sampling analytical support data evaluation and a literature search - based on EPAs Statement of Work (SOW) dated September 2006 and the November 3 2006 and November 8 2006 discussions held with EPA and documented in Attachment 1

The technical approach for this assignment includes seven tasks

Task 1 - Project Planning and Support Task 3 - Data Acquisition Task 4 - Sample Analysis Task 5 - Analytical Support and Data Validation Task 6 - Data Evaluation Task 7 - Treatability Study and Pilot Testing Task 13 - Task Order Closeout

Task 11 - PrefinalFinal Design was eliminated from the scope during the November 3 2006 scoping meeting The technical approach and level of effort assumptions for each task are described in this section

TO002-TOPCE-112006-100

31 Project Planning and Support (Task 1)

The following subsections identify the project planning elements necessary to complete the SOW This task consists of project planning attending a scoping meeting and participating in scope clarification discussions preparing notes from the meetingsdiscussions evaluating existing information developing the TOPCE preparation of site-specific plans and project and subcontract management activities

311 Project Planning (Subtask 11) As specified in the SOW this subtask describes the intended work effort for development of this task order proposal This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 - July 4 2007)

3111 Attend Scoping Meeting (Subtask 111) A technical scoping meeting was held at EPA in Boston on November 3 2006 for the purposes of clarifying the scope and technical aspects of the project Five MampE personnel including the RAC deputy program manager RAC contract manager task order manager task order engineer and task order hydrogeologist attended the meeting The meeting was also attended by the EPA TOPOs the EPA Project Officer the EPA Contracting Officer (by phone) the NH Section Chief and the NHDES project manager (by phone) The notes from the meeting are included in Attachment 1 The notes include summaries of both the technical discussions and the scoping discussions

After the November 3 2006 meeting a second meeting was held via conference call with the EPA TOPOs and EPA hydrogeologist to clarify the vertical profiling and well installation effort with respect to technical details regarding soil sampling and equipment limitations in rocky soil The effort for preparation of the QAPP and the deliverables from the vertical profiling effort was also clarified The MampE technical team (task order manager engineer and hydrogeologist) participated in the call The decisions reached during that call are included in the notes in Attachment 1

3113 Evaluate Existing Information (Subtask 113) MampE is evaluating existing Site data and documents including the RIFS the ROD the OU-4 RA Report recent sampling data and the ADL OU 3 Remedial Design In addition MampE has evaluated existing EPA guidance documents and vendor literature regarding ISCO technologies and various types of vertical profiling equipment for applicability to Site conditions to the degree necessary to support development of the TOPCE Site data and boring logs were also compiled for use in discussions with potential subcontractors for the ISCO and vertical profiling portions of the EPA SOW

A medium LOE is budgeted for evaluation of existing information related to ISCO technologies including the following efforts evaluation of the Site plume and hot spots for applicability of ISCO and the potential utility of piloting both hot spots using the same or different oxidants review of EPA guidance documents to develop technical approaches for bench-scale tests and analyses to monitor pilot test effectiveness and discussions with ISCO vendors and review of vendor-supplied publications to identify additional data needs and data collection efforts for design and execution of the pilot studies An additional cursory LOE is budgeted for compilation of existing Site data and boring logs from multiple Site documents and the Site analytical database for use in discussion with ISCO vendors Two low LOE are budgeted for the review of Site analytical data and boring logs to develop a vertical profiling technical approach (including locations for profiling sampling depths and techniques for retrieving the groundwater samples) and compilation and review of potential subcontractor information regarding their vertical profiling equipment and its applicability to the Site A half-cursory LOE is budgeted for review of the RA report to identify areas of the site where cobbles are anticipated to be a problem for most vertical profiling drilling rigs based on discussions with the TOPOs that indicated that such problems were prevalent at another nearby Superfund site Finally a cursory LOE is budgeted for review of the previous QAPP and groundwater analytical data to select analytical methods for the vertical profiling effort and advise the TOPOs on whether analysis for VOCs andor SVOCs in soil samples would be useful to support future treatability work

TO002-TOPCE-112006-100

A substantial portion of the effort related to ISCO technologies was expended before the November 3 meeting with EPA at which EPA decided that the bench and pilot-scale treatability studies would be put on hold and not budgeted in this TOPCE (see Attachment 1) Effort to evaluate vertical profiling equipment and review of data to select analytical methods has also been completed as necessary to allow budgeting of the vertical profiling subpool effort (Task 3) and the analytical laboratory budget (Task 4)

3114 Develop Task Order ProposafCost Estimate (Subtask 114) This subtask involves preparation and submittal of this draft TOPCE for conducting the tasks outlined in the SOW and agreed to during the November 3 2006 scoping meeting and November 8 2006 conference call with EPA This Task Order Proposal has been written to present the work breakdown structure (WBS) based on EPAs SOW and scope clarifications agreed to between EPA and MampE A summary of the clarifications was prepared by MampE and submitted to EPA on November 14 2006 (see Attachment 1) Budget is included for a draft TOPCE and a final cost estimate

Draft Task Order Proposal A narrative has been developed and a cost estimate prepared for the draft TOP The TOP identifies 1) the objectives of the technical tasks identified in the SOW and how these objectives will be met 2) a detailed description of the technical approach for each task and subtask within the WBS provided in the SOW and where appropriate assumptions used information needed information to be produced and work products and 3) a projected schedule for the task order

It is noted that MampE expended effort to begin developing the technical approach and cost estimate for many items in the SOW that have since been put on hold by EPA such as the bench and pilot-scale treatability studies (including LOE subpool and ODC estimates and a technical approach for monitoring the pilot test) the 25 well monitoring rounds (including LOE subpool and ODC estimates plus an analytical approach designed to help support the pilot test as well as monitor the VOC plume) and the data evaluation reports for the 25 well rounds (including technical approach for report content LOE estimate and ODC estimate) The technical and cost information for activities no longer included as part of this TOPCE will remain on file at MampE and it is anticipated that it will be used when EPA issues a Task Order Modification with Amended SOW for those activities

Cost Estimate The TOPCE provides a detailed cost estimate for each task as specified in the WBS provided in the SOW The cost estimate presents the level-of-effort (LOE) in terms of hours by grade level as well as labor costs and other direct costs for each task As noted above effort was expended to develop costs for activities no longer included in the SOW per EPA direction at the November 3 scoping meeting

Final TOPCE It is anticipated that a negotiation meeting by telephone will be conducted between EPA and MampE prior to TOPCE approval It is assumed that MampEs task order manager RAC Deputy Program Manager RAC Contract FinancialAdministration Manager MampEs Project Geologist and MampEs Project Engineer will be in attendance It is further assumed that no resubmittal of the draft TOP will be needed however submittal of a revised cost estimate has been budgeted A low LOE is budgeted for negotiations and revision of the cost estimate The Task Order Proposal requirement of the SOW will be considered to be complete upon EPA approval of the TOP and the final cost estimate

312 Preparation of Site-Specific Plans (Subtask 12) This subtask includes the preparation of a Site-Specific Health and Safety Plan and a Sampling and Analysis Plan (SAP)Field Sampling Plan (FSP) For the SAP one combined document referred to as a Quality Assurance Project Plan (QAPP) will be prepared for this project This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 -Ju ly4 2007)

3121 Site Management Plan (Subtask 121) This subtask has not been budgeted Site managementsecurity issues will instead be described in the Health and Safety Plan

TO002-TOPCE-112006-100 6

3122 Health and Safety Plan (Subtask 122) A Health and Safety Plan (HASP) will be prepared utilizing the previously prepared HASP for this Site The HASP will specify employee training protective equipment medical monitoring requirements standard operating procedures and a contingency plan in accordance with 29 CFR 191020 It is assumed that only one submittal of this plan will be made to EPA One cursory LOE is budgeted for this plan

3123 Sampling and Analysis Plan (Subtask 123) MampE will prepare a Quality Assurance Project Plan (QAPP) in accordance with EPA QAR-5 and the Region I EPA-New England Compendium of Quality Assurance Project Plan Requirements and Guidance (October 1999) The QAPP will describe the project objectives and organization functional activities and QAQC protocols to be used to achieve DQOs The sample collection methods sample locations and frequency sampling equipment and procedures and sample handling and analysis will also be included Whenever possible previously developed Sampling and Analysis Plans and QAPPs for this site will be utilized Based on discussions with the EPA TOPOs on November 8 2006 the QAPP will include a site plan showing proposed vertical profiling locations and a schematic cross-section to illustrate proposed groundwater sampling depths It is assumed that the draft QAPP will be completed within a high plus low LOE and will be based on the groundwater monitoring QAPP from Work Assignment 152 with worksheets and Standard Operating Procedures amplifiedmodified to incorporate protocols for vertical profiling sample collection and analysis including use of a field gas chromatograph (GC) It is assumed that the EPA OEME comments on the draft QAPP will require a low level of effort to be addressed including issuance of revisions to selected worksheets as necessary to address the comments

313 Project Management (Subtask 13) This subtask includes day-to-day management activities such as preparation of monthly progress reports project and staff scheduling monitoring and controlling costs and communications between EPA and MampE Based on the SOW the period-of-performance for this task order is from September 28 2006 through June 30 2008 for a total period of 21 months Of the 21 months 9 months are in Contract Year 1 and 12 months are in Contract Year 2

3131 Prepare Periodic Progress Reports (Subtask 131) It is assumed that 21 monthly progress reports and invoices will be prepared to document project cost and performance during the period-of-performance Nine reports are budgeted for Contract Year 1 and 12 are budgeted for Contract Year 2 The monthly progress reports will document cost and performance status by describing the project status by task anticipated schedules anticipated LOE usage for the following month and any problems or potential problems encountered or anticipated

In addition to monthly reporting the MampE task order manager will be responsible for the overall project coordination scheduling reporting and routine communication with EPA Activities anticipated typically include internal project meetings telephone discussions and electronic mail correspondence with the EPA TOPOs actions as the result of telephoneemail conversations preparing and editing correspondence monitoring and controlling labor hourscosts and actions schedule maintenance and approval staff scheduling project management and staff meetings problem resolution and routine administration for the period-of-performance

It is anticipated that the MampE task order manager will communicate several times weekly or as appropriate with the EPA TOPOs via telephone or e-mail For estimating purposes it is assumed that there will be a high degree of activity for the entire duration of the task order

314 Subcontract Procurement and Support Activities (Subtask 14) Several activities being conducted during field activities and during other tasks in order to complete activities in this SOW will require the services of outside subcontractors The efforts for procurement and management of the different subcontracts are included in this subtask while the estimated costs for the subcontracted work to be performed are included under the respective tasks for which the subcontracts are involved Technical efforts associated with scheduling field work coordination and technical interactions with subcontractors are budgeted under the appropriate field activity and analytical support subtasks

TO002-TOPCE-112006-100 7

3141 Identification and Procurement of Subcontractors (Subtask 141) Several subcontractors will be procured to support field work activities

bull Drilling for Monitoring Well Installation bull Vertical Profiling (to potentially include two subcontracts)

Analytical Services Investigation-Derived Waste (IDW) disposal

For the subcontractors cost estimates include development of specifications and technical SOWs bid review procurement of subcontractors and subcontract initiation activities In addition it is anticipated that half-day site visits will be attended by one MampE technical staff to meet with the drilling and vertical profiling bidders to evaluate the site and field conditions All quotations will be solicited on a competitive basis whenever possible

In addition to the above mentioned subcontracts DAS laboratories may be required to perform the 14-dioxane analyses for the vertical profiling sampling effort which is described in Section 3324 The OEME laboratory may perform the 14-dioxane analyses but DAS analyses are being budgeted in the event that the OEME laboratory does not have the capacity to perform the analyses when the vertical profiling event is performed For the cost estimate it is assumed that analytical specifications developed under the DAS Task Order and laboratories pre-qualified under the DAS Task Order will be used therefore no technical effort has been budgeted for procurement of the analytical laboratories

Drilling A drilling subcontract will be awarded to a firm to install 8 new monitoring wells When available to minimize costs MampE will utilize previously prepared Requests for Proposals (RFPs) to solicit this new subcontractor In total 23 hours have been budgeted to procure the drilling subcontractor which includes one cursory LOE to prepare the scope of work one cursory to prepare for and attend a site visit with the bidders and 3 hours to issue the subcontract

Vertical Profiling For vertical profiling to date MampE has identified only one subcontractor with the type of equipment recommended by EPA as necessary for this site because of the difficult drilling conditions (rocky soil) That subcontractor has told MampE that they have only one rig of that type MampE is attempting to identify other subcontractors with similar equipment so that competitive bids may be obtained and so that two rigs of similar type can be mobilized to the site If another local subcontractor with the EPA-recommended equipment cannot be located it may be necessary to prepare a sole-source procurement justification for the vertical profiling effort The LOE estimate for vertical profiling procurement is based on two separate procurements (so that two rigs may be utilized) The budget to procure the vertical profiling subcontractors includes one cursory LOE to identify more providers of a specialized vertical profiling rig one cursory LOE to prepare the scope of work (tailored to the specific equipment requirements) one cursory LOE to prepare for and conduct a site visit with the bidders and 6 hours to issue a subcontract to two separate bidders In addition 16 hours have been budgeted to prepare sole source justification memos for both of the subcontracts since it is likely that MampE will be unable to find multiple suppliers of such specialized equipment

Analytical Services Delivery of Analytical Services (DAS) laboratories may be utilized for analyses for 14-dioxane Laboratories pre-qualified under the DAS Work Assignment will be used No technical effort has been budgeted for procurement of the analytical laboratories subcontract management time or for the approval of the invoice Technical effort to prepare the DAS work order and hold a technical kickoff conference call with the laboratory is included under Task 52

Waste Disposal The waste disposal services being subcontracted will consist of removal from the site and disposal of IDW that will be generated during the field activities It is anticipated that the IDW will consist of contaminated personal protective equipment (PPE) decontamination

TO002-TOPCE-112006-100 8

fluids soils from the well installation and development and purge water from the groundwater wells and vertical profiling locations The IDW will be collected into 55-gallon drums which will be temporarily stored within the fenced-in site area It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil from the well installations and 2 drums of PPE for a total of 15 drums will be generated during field activities at the site To minimize costs MampE will utilize previously prepared Requests for Proposals to solicit this subcontractor One cursory LOE has been budgeted for preparation of the scope of work and to prepare required paperwork and coordinate with the waste disposal subcontractor In addition 3 hours have been budgeted to issue the subcontract to the selected bidder

For estimating purposes it is assumed that analytical data from environmental samples collected during the vertical profiling event will be sufficient to characterize the drum contents for bidding purposes and that only minimal additional testing of drum contents by the subcontractor will be needed prior to their removal It is also assumed that no more than 15 drums of waste will require disposal It is further assumed that the drum pick-up can be coordinated with field work activities and that removal of all drums can be completed within one half-day site visit (budgeted under Subtask 3210) to be scheduled after completion of both the vertical profiling effort and the well installation effort

3142 QA Program for Subcontractors (Subtask 142) MampE will provide QA oversight andor review of deliverables as appropriate for the subcontractors (drilling vertical profiling waste disposal analytical laboratory) being procured as part of this task order For the drilling vertical profiling and waste disposal subcontractors on-going monitoring of the services will be overseen during the field work by MampE technical field personnel in Subtask 324 For the analytical laboratory subcontract effort has been included for technical review of submittals (data electronic files etc) under Task 5 Therefore no budget is included under this subtask

3143 Subcontract Management (Subtask 143) The activities budgeted under this subtask include invoice review approval and payment for each of the subcontracts The cost estimate for invoice review assumes that each subcontractor will submit one invoice for a total of 5 invoices requiring review (one driller two vertical profiling subcontractors one DAS laboratory and one IDW disposal subcontractor) In total under 2 low LOE have been budgeted for this subtask

33 Data Acquisition (Task 3)

This task includes work efforts to plan and execute Pre-Design field activities for the possible implementation of In Situ Chemical Oxidation (ISCO) at the Ottati and Goss site The pre- and post-fieldwork LOE for each field task varies based on the number of people on a field team and the required post-fieldwork paper work Mobilization and demobilization efforts consist of tasks necessary to prepare and equip the field team for completing activities in the field and upon return to the office including preshyand post-office support of field work activities As part of this subtask the costs for mobilizationdemobilization efforts and support field efforts including the daily monitoring of field schedule and work completed and daily communications with field staff and EPA have been budgeted for each of the field activities

Mobilization efforts including pre-field work (office support) tasks consist of coordination and planningscheduling of daily field work and field events preparation of field-related paperwork (field log books sampling sheets air bills sample labels chain-of-custodies and traffic reports) and equipment and vehicle mobilization As part of each field activity a pre-field meeting will be held which typically includes attendance by the MampE Task Order Manager Project Hydrogeologist Project Chemist and relevant field personnel Time is also allotted for field personnel to read the HASP and QAPP In addition costs have been included to coordinate with the different subcontractors prior to commencement of field activities Demobilization efforts including equipment and vehicle demobilization maintenance of field equipment and post-field paperwork are also performed for each field activity

TO002-TOPCE-112006-100 9

The mobilization demobilization and pre- and post- fieldwork LOE for each task are different based on the type of task A higher amount of LOE for mobilization and de-mobilization has been budgeted for actual field work performed by MampE such as the vertical profiling sampling as opposed to oversight of well installation The pre- and post- fieldwork LOE also varies based on the number of people on a field team and the required post-fieldwork paper work An example of these includes LOE to read the QAPP and HASP would be greater for a larger field team and post-paperwork after well installation would include preparing and reviewing all of the boring logs

During all field activities each field team will maintain a field log book as well as other relevant log books typically used in the field The information to be recorded in the log book will be detailed in the QAPP and at a minimum will include information for each day on the site

Photographs will be taken to document site conditions and other pertinent observations and relevant photographs will be organized and compiled into photologs (labeled identified and dated) for submittal to EPA Any unusual events or deviations from project-specific documents will be recorded During field work it is anticipated that daily communications between field team personnel the MampE task order manager Project Hydrogeologist and Chemist and EPA will be maintained Technical effort has been budgeted for the respective field activities to support this necessary and frequent communication

A brief summary of the LOE has been included with the specific task Field days are assumed to be twelve (12) hours in length unless otherwise specified Each field task also includes LOE for pre- and post- field work activities

331 Mobilization and Demobilization of Field Activities Subtask 31) This subtask includes LOE and other direct costs (ODCs) to perform the following field activities MobilizationDemobilization of temporary facilities and Site Restoration The facilities include laboratoryfield office trailer steps laboratory equipment (field gas chromatograph and supporting equipment) and portable toilet Power also needs to be restored to the on-site trailer Mobilization activities are budgeted for Contract Year 1 and demobilization activities are budgeted for Contract Year 2

3311 Identify Field Support Equipment Supplies and Facilities Subtask 311) As part of the work identified in Subtask 332 MampE has included all ODCs for the necessary equipment to mobilize a field laboratory within the on-site MampE trailer currently present at the site and to coordinate with the power company to oversee restoration of power to the trailer A low LOE in Contract Year 1 has been allocated for identifying field support equipment supplies and facilities

3312 Mobilization (Subtask 312) A cursory LOE is budgeted for coordination with the power company including a half-day site visit (4 hours by one person) to oversee restoration of power In addition two half-day site visits (4 hours each by one person) are budgeted to oversee mobilization of the portable toilet and the trailer steps to the site Site visits will be combined whenever possible to reduce costs for mobilization The mobilization budget is included in Contract Year 1

3313 Demobilization (Subtask 313) The demobilization of the site including all temporary facilities and utilities will occur when all field tasks have been completed It is anticipated that it will take one (1) MampE staff member two 8-hour field days (including travel tofrom the site) to oversee the removal of all temporary facilities including the site trailer portable toilet and disconnection of power from the trailer The demobilization budget is included in Contract Year 2

332 Field Investigation (Subtask 32) As per MampEs scoping meeting with EPA on November 3 2006 this task involves vertical profiling in two areas of the site with collection of groundwater and soil samples and the installation of eight new monitoring wells for future use in monitoring a planned pilot-scale treatability test of the ISCO technology Other field tasks identifed in the EPA SOW are being deferred as described in the scoping meeting notes (see Attachment 1)

TO002-TOPCE-112006-100 10

The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

TO002-TOPCE-112006-100 11

been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

TO002-TOPCE-112006-100 12

member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

TO002-TOPCE-112006-100 13

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EPA has decided to collect data needed evaluate in-situ alternatives to a pump-and-treat system under this Task Order Specifically the Task Order involves 1) vertical profiling and well installation to delineate groundwater contamination in sufficient detail for application of an in-situ technology 2) literature review and bench and on-site pilot-scale evaluation of In Situ Chemical Oxidation (ISCO) for removingdestroying groundwater and soil contaminants in selected areas west of Route 125 3) continued groundwater monitoring to evaluate the plume both before and after pilot-scale ISCO treatment and 4) design of a full-scale ISCO remediation system should the pilot study lead EPA to make the decision to pursue a full-scale ISCO remedy During the November 3 2006 scoping meeting EPA determined that only the vertical profiling effort well installation and a limited literature search for ISCO case studies would be budgeted in this TOPCE The other portions of the scope remain under consideration by EPA and a Task Order Modification for some or all of the other items may be issued by EPA in 2007

20 PROJECT OBJECTIVE

The objective of this task order is to perform the investigatory work associated with delineating the groundwater plume to collect data needed to plan for and execute a future pilot-scale treatability study of ISCO to address contaminated groundwater west of Route 125 Depending on the outcome of the pilot studies a full-scale design for (SCO is also envisioned as a future Task Order Modification

The primary work to be conducted under this TOPCE includes vertical profiling with groundwater sampling and field analysis for VOCs and laboratory analysis for 14-dioxane to better delineate the plume Selected soil samples from the saturated zone will also be collected and analyzed for VOCs to help evaluate the mass of contamination adsorbed to soil for use in designing future ISCO bench and pilot studies Eight new monitoring wells are budgeted for future use in monitoring ISCO pilot studies The eight wells are to be installed in locations to be selected based on the results of the vertical profiling effort A literature review of ISCO case studies and vendor publications is also budgeted to assist EPA in planning for upcoming bench and pilot-scale ISCO studies that will form the scope of a future Task Order

30 TECHNICAL APPROACH

MampE has prepared this technical approach for providing remedial design support in the following areas environmental sampling analytical support data evaluation and a literature search - based on EPAs Statement of Work (SOW) dated September 2006 and the November 3 2006 and November 8 2006 discussions held with EPA and documented in Attachment 1

The technical approach for this assignment includes seven tasks

Task 1 - Project Planning and Support Task 3 - Data Acquisition Task 4 - Sample Analysis Task 5 - Analytical Support and Data Validation Task 6 - Data Evaluation Task 7 - Treatability Study and Pilot Testing Task 13 - Task Order Closeout

Task 11 - PrefinalFinal Design was eliminated from the scope during the November 3 2006 scoping meeting The technical approach and level of effort assumptions for each task are described in this section

TO002-TOPCE-112006-100

31 Project Planning and Support (Task 1)

The following subsections identify the project planning elements necessary to complete the SOW This task consists of project planning attending a scoping meeting and participating in scope clarification discussions preparing notes from the meetingsdiscussions evaluating existing information developing the TOPCE preparation of site-specific plans and project and subcontract management activities

311 Project Planning (Subtask 11) As specified in the SOW this subtask describes the intended work effort for development of this task order proposal This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 - July 4 2007)

3111 Attend Scoping Meeting (Subtask 111) A technical scoping meeting was held at EPA in Boston on November 3 2006 for the purposes of clarifying the scope and technical aspects of the project Five MampE personnel including the RAC deputy program manager RAC contract manager task order manager task order engineer and task order hydrogeologist attended the meeting The meeting was also attended by the EPA TOPOs the EPA Project Officer the EPA Contracting Officer (by phone) the NH Section Chief and the NHDES project manager (by phone) The notes from the meeting are included in Attachment 1 The notes include summaries of both the technical discussions and the scoping discussions

After the November 3 2006 meeting a second meeting was held via conference call with the EPA TOPOs and EPA hydrogeologist to clarify the vertical profiling and well installation effort with respect to technical details regarding soil sampling and equipment limitations in rocky soil The effort for preparation of the QAPP and the deliverables from the vertical profiling effort was also clarified The MampE technical team (task order manager engineer and hydrogeologist) participated in the call The decisions reached during that call are included in the notes in Attachment 1

3113 Evaluate Existing Information (Subtask 113) MampE is evaluating existing Site data and documents including the RIFS the ROD the OU-4 RA Report recent sampling data and the ADL OU 3 Remedial Design In addition MampE has evaluated existing EPA guidance documents and vendor literature regarding ISCO technologies and various types of vertical profiling equipment for applicability to Site conditions to the degree necessary to support development of the TOPCE Site data and boring logs were also compiled for use in discussions with potential subcontractors for the ISCO and vertical profiling portions of the EPA SOW

A medium LOE is budgeted for evaluation of existing information related to ISCO technologies including the following efforts evaluation of the Site plume and hot spots for applicability of ISCO and the potential utility of piloting both hot spots using the same or different oxidants review of EPA guidance documents to develop technical approaches for bench-scale tests and analyses to monitor pilot test effectiveness and discussions with ISCO vendors and review of vendor-supplied publications to identify additional data needs and data collection efforts for design and execution of the pilot studies An additional cursory LOE is budgeted for compilation of existing Site data and boring logs from multiple Site documents and the Site analytical database for use in discussion with ISCO vendors Two low LOE are budgeted for the review of Site analytical data and boring logs to develop a vertical profiling technical approach (including locations for profiling sampling depths and techniques for retrieving the groundwater samples) and compilation and review of potential subcontractor information regarding their vertical profiling equipment and its applicability to the Site A half-cursory LOE is budgeted for review of the RA report to identify areas of the site where cobbles are anticipated to be a problem for most vertical profiling drilling rigs based on discussions with the TOPOs that indicated that such problems were prevalent at another nearby Superfund site Finally a cursory LOE is budgeted for review of the previous QAPP and groundwater analytical data to select analytical methods for the vertical profiling effort and advise the TOPOs on whether analysis for VOCs andor SVOCs in soil samples would be useful to support future treatability work

TO002-TOPCE-112006-100

A substantial portion of the effort related to ISCO technologies was expended before the November 3 meeting with EPA at which EPA decided that the bench and pilot-scale treatability studies would be put on hold and not budgeted in this TOPCE (see Attachment 1) Effort to evaluate vertical profiling equipment and review of data to select analytical methods has also been completed as necessary to allow budgeting of the vertical profiling subpool effort (Task 3) and the analytical laboratory budget (Task 4)

3114 Develop Task Order ProposafCost Estimate (Subtask 114) This subtask involves preparation and submittal of this draft TOPCE for conducting the tasks outlined in the SOW and agreed to during the November 3 2006 scoping meeting and November 8 2006 conference call with EPA This Task Order Proposal has been written to present the work breakdown structure (WBS) based on EPAs SOW and scope clarifications agreed to between EPA and MampE A summary of the clarifications was prepared by MampE and submitted to EPA on November 14 2006 (see Attachment 1) Budget is included for a draft TOPCE and a final cost estimate

Draft Task Order Proposal A narrative has been developed and a cost estimate prepared for the draft TOP The TOP identifies 1) the objectives of the technical tasks identified in the SOW and how these objectives will be met 2) a detailed description of the technical approach for each task and subtask within the WBS provided in the SOW and where appropriate assumptions used information needed information to be produced and work products and 3) a projected schedule for the task order

It is noted that MampE expended effort to begin developing the technical approach and cost estimate for many items in the SOW that have since been put on hold by EPA such as the bench and pilot-scale treatability studies (including LOE subpool and ODC estimates and a technical approach for monitoring the pilot test) the 25 well monitoring rounds (including LOE subpool and ODC estimates plus an analytical approach designed to help support the pilot test as well as monitor the VOC plume) and the data evaluation reports for the 25 well rounds (including technical approach for report content LOE estimate and ODC estimate) The technical and cost information for activities no longer included as part of this TOPCE will remain on file at MampE and it is anticipated that it will be used when EPA issues a Task Order Modification with Amended SOW for those activities

Cost Estimate The TOPCE provides a detailed cost estimate for each task as specified in the WBS provided in the SOW The cost estimate presents the level-of-effort (LOE) in terms of hours by grade level as well as labor costs and other direct costs for each task As noted above effort was expended to develop costs for activities no longer included in the SOW per EPA direction at the November 3 scoping meeting

Final TOPCE It is anticipated that a negotiation meeting by telephone will be conducted between EPA and MampE prior to TOPCE approval It is assumed that MampEs task order manager RAC Deputy Program Manager RAC Contract FinancialAdministration Manager MampEs Project Geologist and MampEs Project Engineer will be in attendance It is further assumed that no resubmittal of the draft TOP will be needed however submittal of a revised cost estimate has been budgeted A low LOE is budgeted for negotiations and revision of the cost estimate The Task Order Proposal requirement of the SOW will be considered to be complete upon EPA approval of the TOP and the final cost estimate

312 Preparation of Site-Specific Plans (Subtask 12) This subtask includes the preparation of a Site-Specific Health and Safety Plan and a Sampling and Analysis Plan (SAP)Field Sampling Plan (FSP) For the SAP one combined document referred to as a Quality Assurance Project Plan (QAPP) will be prepared for this project This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 -Ju ly4 2007)

3121 Site Management Plan (Subtask 121) This subtask has not been budgeted Site managementsecurity issues will instead be described in the Health and Safety Plan

TO002-TOPCE-112006-100 6

3122 Health and Safety Plan (Subtask 122) A Health and Safety Plan (HASP) will be prepared utilizing the previously prepared HASP for this Site The HASP will specify employee training protective equipment medical monitoring requirements standard operating procedures and a contingency plan in accordance with 29 CFR 191020 It is assumed that only one submittal of this plan will be made to EPA One cursory LOE is budgeted for this plan

3123 Sampling and Analysis Plan (Subtask 123) MampE will prepare a Quality Assurance Project Plan (QAPP) in accordance with EPA QAR-5 and the Region I EPA-New England Compendium of Quality Assurance Project Plan Requirements and Guidance (October 1999) The QAPP will describe the project objectives and organization functional activities and QAQC protocols to be used to achieve DQOs The sample collection methods sample locations and frequency sampling equipment and procedures and sample handling and analysis will also be included Whenever possible previously developed Sampling and Analysis Plans and QAPPs for this site will be utilized Based on discussions with the EPA TOPOs on November 8 2006 the QAPP will include a site plan showing proposed vertical profiling locations and a schematic cross-section to illustrate proposed groundwater sampling depths It is assumed that the draft QAPP will be completed within a high plus low LOE and will be based on the groundwater monitoring QAPP from Work Assignment 152 with worksheets and Standard Operating Procedures amplifiedmodified to incorporate protocols for vertical profiling sample collection and analysis including use of a field gas chromatograph (GC) It is assumed that the EPA OEME comments on the draft QAPP will require a low level of effort to be addressed including issuance of revisions to selected worksheets as necessary to address the comments

313 Project Management (Subtask 13) This subtask includes day-to-day management activities such as preparation of monthly progress reports project and staff scheduling monitoring and controlling costs and communications between EPA and MampE Based on the SOW the period-of-performance for this task order is from September 28 2006 through June 30 2008 for a total period of 21 months Of the 21 months 9 months are in Contract Year 1 and 12 months are in Contract Year 2

3131 Prepare Periodic Progress Reports (Subtask 131) It is assumed that 21 monthly progress reports and invoices will be prepared to document project cost and performance during the period-of-performance Nine reports are budgeted for Contract Year 1 and 12 are budgeted for Contract Year 2 The monthly progress reports will document cost and performance status by describing the project status by task anticipated schedules anticipated LOE usage for the following month and any problems or potential problems encountered or anticipated

In addition to monthly reporting the MampE task order manager will be responsible for the overall project coordination scheduling reporting and routine communication with EPA Activities anticipated typically include internal project meetings telephone discussions and electronic mail correspondence with the EPA TOPOs actions as the result of telephoneemail conversations preparing and editing correspondence monitoring and controlling labor hourscosts and actions schedule maintenance and approval staff scheduling project management and staff meetings problem resolution and routine administration for the period-of-performance

It is anticipated that the MampE task order manager will communicate several times weekly or as appropriate with the EPA TOPOs via telephone or e-mail For estimating purposes it is assumed that there will be a high degree of activity for the entire duration of the task order

314 Subcontract Procurement and Support Activities (Subtask 14) Several activities being conducted during field activities and during other tasks in order to complete activities in this SOW will require the services of outside subcontractors The efforts for procurement and management of the different subcontracts are included in this subtask while the estimated costs for the subcontracted work to be performed are included under the respective tasks for which the subcontracts are involved Technical efforts associated with scheduling field work coordination and technical interactions with subcontractors are budgeted under the appropriate field activity and analytical support subtasks

TO002-TOPCE-112006-100 7

3141 Identification and Procurement of Subcontractors (Subtask 141) Several subcontractors will be procured to support field work activities

bull Drilling for Monitoring Well Installation bull Vertical Profiling (to potentially include two subcontracts)

Analytical Services Investigation-Derived Waste (IDW) disposal

For the subcontractors cost estimates include development of specifications and technical SOWs bid review procurement of subcontractors and subcontract initiation activities In addition it is anticipated that half-day site visits will be attended by one MampE technical staff to meet with the drilling and vertical profiling bidders to evaluate the site and field conditions All quotations will be solicited on a competitive basis whenever possible

In addition to the above mentioned subcontracts DAS laboratories may be required to perform the 14-dioxane analyses for the vertical profiling sampling effort which is described in Section 3324 The OEME laboratory may perform the 14-dioxane analyses but DAS analyses are being budgeted in the event that the OEME laboratory does not have the capacity to perform the analyses when the vertical profiling event is performed For the cost estimate it is assumed that analytical specifications developed under the DAS Task Order and laboratories pre-qualified under the DAS Task Order will be used therefore no technical effort has been budgeted for procurement of the analytical laboratories

Drilling A drilling subcontract will be awarded to a firm to install 8 new monitoring wells When available to minimize costs MampE will utilize previously prepared Requests for Proposals (RFPs) to solicit this new subcontractor In total 23 hours have been budgeted to procure the drilling subcontractor which includes one cursory LOE to prepare the scope of work one cursory to prepare for and attend a site visit with the bidders and 3 hours to issue the subcontract

Vertical Profiling For vertical profiling to date MampE has identified only one subcontractor with the type of equipment recommended by EPA as necessary for this site because of the difficult drilling conditions (rocky soil) That subcontractor has told MampE that they have only one rig of that type MampE is attempting to identify other subcontractors with similar equipment so that competitive bids may be obtained and so that two rigs of similar type can be mobilized to the site If another local subcontractor with the EPA-recommended equipment cannot be located it may be necessary to prepare a sole-source procurement justification for the vertical profiling effort The LOE estimate for vertical profiling procurement is based on two separate procurements (so that two rigs may be utilized) The budget to procure the vertical profiling subcontractors includes one cursory LOE to identify more providers of a specialized vertical profiling rig one cursory LOE to prepare the scope of work (tailored to the specific equipment requirements) one cursory LOE to prepare for and conduct a site visit with the bidders and 6 hours to issue a subcontract to two separate bidders In addition 16 hours have been budgeted to prepare sole source justification memos for both of the subcontracts since it is likely that MampE will be unable to find multiple suppliers of such specialized equipment

Analytical Services Delivery of Analytical Services (DAS) laboratories may be utilized for analyses for 14-dioxane Laboratories pre-qualified under the DAS Work Assignment will be used No technical effort has been budgeted for procurement of the analytical laboratories subcontract management time or for the approval of the invoice Technical effort to prepare the DAS work order and hold a technical kickoff conference call with the laboratory is included under Task 52

Waste Disposal The waste disposal services being subcontracted will consist of removal from the site and disposal of IDW that will be generated during the field activities It is anticipated that the IDW will consist of contaminated personal protective equipment (PPE) decontamination

TO002-TOPCE-112006-100 8

fluids soils from the well installation and development and purge water from the groundwater wells and vertical profiling locations The IDW will be collected into 55-gallon drums which will be temporarily stored within the fenced-in site area It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil from the well installations and 2 drums of PPE for a total of 15 drums will be generated during field activities at the site To minimize costs MampE will utilize previously prepared Requests for Proposals to solicit this subcontractor One cursory LOE has been budgeted for preparation of the scope of work and to prepare required paperwork and coordinate with the waste disposal subcontractor In addition 3 hours have been budgeted to issue the subcontract to the selected bidder

For estimating purposes it is assumed that analytical data from environmental samples collected during the vertical profiling event will be sufficient to characterize the drum contents for bidding purposes and that only minimal additional testing of drum contents by the subcontractor will be needed prior to their removal It is also assumed that no more than 15 drums of waste will require disposal It is further assumed that the drum pick-up can be coordinated with field work activities and that removal of all drums can be completed within one half-day site visit (budgeted under Subtask 3210) to be scheduled after completion of both the vertical profiling effort and the well installation effort

3142 QA Program for Subcontractors (Subtask 142) MampE will provide QA oversight andor review of deliverables as appropriate for the subcontractors (drilling vertical profiling waste disposal analytical laboratory) being procured as part of this task order For the drilling vertical profiling and waste disposal subcontractors on-going monitoring of the services will be overseen during the field work by MampE technical field personnel in Subtask 324 For the analytical laboratory subcontract effort has been included for technical review of submittals (data electronic files etc) under Task 5 Therefore no budget is included under this subtask

3143 Subcontract Management (Subtask 143) The activities budgeted under this subtask include invoice review approval and payment for each of the subcontracts The cost estimate for invoice review assumes that each subcontractor will submit one invoice for a total of 5 invoices requiring review (one driller two vertical profiling subcontractors one DAS laboratory and one IDW disposal subcontractor) In total under 2 low LOE have been budgeted for this subtask

33 Data Acquisition (Task 3)

This task includes work efforts to plan and execute Pre-Design field activities for the possible implementation of In Situ Chemical Oxidation (ISCO) at the Ottati and Goss site The pre- and post-fieldwork LOE for each field task varies based on the number of people on a field team and the required post-fieldwork paper work Mobilization and demobilization efforts consist of tasks necessary to prepare and equip the field team for completing activities in the field and upon return to the office including preshyand post-office support of field work activities As part of this subtask the costs for mobilizationdemobilization efforts and support field efforts including the daily monitoring of field schedule and work completed and daily communications with field staff and EPA have been budgeted for each of the field activities

Mobilization efforts including pre-field work (office support) tasks consist of coordination and planningscheduling of daily field work and field events preparation of field-related paperwork (field log books sampling sheets air bills sample labels chain-of-custodies and traffic reports) and equipment and vehicle mobilization As part of each field activity a pre-field meeting will be held which typically includes attendance by the MampE Task Order Manager Project Hydrogeologist Project Chemist and relevant field personnel Time is also allotted for field personnel to read the HASP and QAPP In addition costs have been included to coordinate with the different subcontractors prior to commencement of field activities Demobilization efforts including equipment and vehicle demobilization maintenance of field equipment and post-field paperwork are also performed for each field activity

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The mobilization demobilization and pre- and post- fieldwork LOE for each task are different based on the type of task A higher amount of LOE for mobilization and de-mobilization has been budgeted for actual field work performed by MampE such as the vertical profiling sampling as opposed to oversight of well installation The pre- and post- fieldwork LOE also varies based on the number of people on a field team and the required post-fieldwork paper work An example of these includes LOE to read the QAPP and HASP would be greater for a larger field team and post-paperwork after well installation would include preparing and reviewing all of the boring logs

During all field activities each field team will maintain a field log book as well as other relevant log books typically used in the field The information to be recorded in the log book will be detailed in the QAPP and at a minimum will include information for each day on the site

Photographs will be taken to document site conditions and other pertinent observations and relevant photographs will be organized and compiled into photologs (labeled identified and dated) for submittal to EPA Any unusual events or deviations from project-specific documents will be recorded During field work it is anticipated that daily communications between field team personnel the MampE task order manager Project Hydrogeologist and Chemist and EPA will be maintained Technical effort has been budgeted for the respective field activities to support this necessary and frequent communication

A brief summary of the LOE has been included with the specific task Field days are assumed to be twelve (12) hours in length unless otherwise specified Each field task also includes LOE for pre- and post- field work activities

331 Mobilization and Demobilization of Field Activities Subtask 31) This subtask includes LOE and other direct costs (ODCs) to perform the following field activities MobilizationDemobilization of temporary facilities and Site Restoration The facilities include laboratoryfield office trailer steps laboratory equipment (field gas chromatograph and supporting equipment) and portable toilet Power also needs to be restored to the on-site trailer Mobilization activities are budgeted for Contract Year 1 and demobilization activities are budgeted for Contract Year 2

3311 Identify Field Support Equipment Supplies and Facilities Subtask 311) As part of the work identified in Subtask 332 MampE has included all ODCs for the necessary equipment to mobilize a field laboratory within the on-site MampE trailer currently present at the site and to coordinate with the power company to oversee restoration of power to the trailer A low LOE in Contract Year 1 has been allocated for identifying field support equipment supplies and facilities

3312 Mobilization (Subtask 312) A cursory LOE is budgeted for coordination with the power company including a half-day site visit (4 hours by one person) to oversee restoration of power In addition two half-day site visits (4 hours each by one person) are budgeted to oversee mobilization of the portable toilet and the trailer steps to the site Site visits will be combined whenever possible to reduce costs for mobilization The mobilization budget is included in Contract Year 1

3313 Demobilization (Subtask 313) The demobilization of the site including all temporary facilities and utilities will occur when all field tasks have been completed It is anticipated that it will take one (1) MampE staff member two 8-hour field days (including travel tofrom the site) to oversee the removal of all temporary facilities including the site trailer portable toilet and disconnection of power from the trailer The demobilization budget is included in Contract Year 2

332 Field Investigation (Subtask 32) As per MampEs scoping meeting with EPA on November 3 2006 this task involves vertical profiling in two areas of the site with collection of groundwater and soil samples and the installation of eight new monitoring wells for future use in monitoring a planned pilot-scale treatability test of the ISCO technology Other field tasks identifed in the EPA SOW are being deferred as described in the scoping meeting notes (see Attachment 1)

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The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

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been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

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member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

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EPA has decided to collect data needed evaluate in-situ alternatives to a pump-and-treat system under this Task Order Specifically the Task Order involves 1) vertical profiling and well installation to delineate groundwater contamination in sufficient detail for application of an in-situ technology 2) literature review and bench and on-site pilot-scale evaluation of In Situ Chemical Oxidation (ISCO) for removingdestroying groundwater and soil contaminants in selected areas west of Route 125 3) continued groundwater monitoring to evaluate the plume both before and after pilot-scale ISCO treatment and 4) design of a full-scale ISCO remediation system should the pilot study lead EPA to make the decision to pursue a full-scale ISCO remedy During the November 3 2006 scoping meeting EPA determined that only the vertical profiling effort well installation and a limited literature search for ISCO case studies would be budgeted in this TOPCE The other portions of the scope remain under consideration by EPA and a Task Order Modification for some or all of the other items may be issued by EPA in 2007

20 PROJECT OBJECTIVE

The objective of this task order is to perform the investigatory work associated with delineating the groundwater plume to collect data needed to plan for and execute a future pilot-scale treatability study of ISCO to address contaminated groundwater west of Route 125 Depending on the outcome of the pilot studies a full-scale design for (SCO is also envisioned as a future Task Order Modification

The primary work to be conducted under this TOPCE includes vertical profiling with groundwater sampling and field analysis for VOCs and laboratory analysis for 14-dioxane to better delineate the plume Selected soil samples from the saturated zone will also be collected and analyzed for VOCs to help evaluate the mass of contamination adsorbed to soil for use in designing future ISCO bench and pilot studies Eight new monitoring wells are budgeted for future use in monitoring ISCO pilot studies The eight wells are to be installed in locations to be selected based on the results of the vertical profiling effort A literature review of ISCO case studies and vendor publications is also budgeted to assist EPA in planning for upcoming bench and pilot-scale ISCO studies that will form the scope of a future Task Order

30 TECHNICAL APPROACH

MampE has prepared this technical approach for providing remedial design support in the following areas environmental sampling analytical support data evaluation and a literature search - based on EPAs Statement of Work (SOW) dated September 2006 and the November 3 2006 and November 8 2006 discussions held with EPA and documented in Attachment 1

The technical approach for this assignment includes seven tasks

Task 1 - Project Planning and Support Task 3 - Data Acquisition Task 4 - Sample Analysis Task 5 - Analytical Support and Data Validation Task 6 - Data Evaluation Task 7 - Treatability Study and Pilot Testing Task 13 - Task Order Closeout

Task 11 - PrefinalFinal Design was eliminated from the scope during the November 3 2006 scoping meeting The technical approach and level of effort assumptions for each task are described in this section

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31 Project Planning and Support (Task 1)

The following subsections identify the project planning elements necessary to complete the SOW This task consists of project planning attending a scoping meeting and participating in scope clarification discussions preparing notes from the meetingsdiscussions evaluating existing information developing the TOPCE preparation of site-specific plans and project and subcontract management activities

311 Project Planning (Subtask 11) As specified in the SOW this subtask describes the intended work effort for development of this task order proposal This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 - July 4 2007)

3111 Attend Scoping Meeting (Subtask 111) A technical scoping meeting was held at EPA in Boston on November 3 2006 for the purposes of clarifying the scope and technical aspects of the project Five MampE personnel including the RAC deputy program manager RAC contract manager task order manager task order engineer and task order hydrogeologist attended the meeting The meeting was also attended by the EPA TOPOs the EPA Project Officer the EPA Contracting Officer (by phone) the NH Section Chief and the NHDES project manager (by phone) The notes from the meeting are included in Attachment 1 The notes include summaries of both the technical discussions and the scoping discussions

After the November 3 2006 meeting a second meeting was held via conference call with the EPA TOPOs and EPA hydrogeologist to clarify the vertical profiling and well installation effort with respect to technical details regarding soil sampling and equipment limitations in rocky soil The effort for preparation of the QAPP and the deliverables from the vertical profiling effort was also clarified The MampE technical team (task order manager engineer and hydrogeologist) participated in the call The decisions reached during that call are included in the notes in Attachment 1

3113 Evaluate Existing Information (Subtask 113) MampE is evaluating existing Site data and documents including the RIFS the ROD the OU-4 RA Report recent sampling data and the ADL OU 3 Remedial Design In addition MampE has evaluated existing EPA guidance documents and vendor literature regarding ISCO technologies and various types of vertical profiling equipment for applicability to Site conditions to the degree necessary to support development of the TOPCE Site data and boring logs were also compiled for use in discussions with potential subcontractors for the ISCO and vertical profiling portions of the EPA SOW

A medium LOE is budgeted for evaluation of existing information related to ISCO technologies including the following efforts evaluation of the Site plume and hot spots for applicability of ISCO and the potential utility of piloting both hot spots using the same or different oxidants review of EPA guidance documents to develop technical approaches for bench-scale tests and analyses to monitor pilot test effectiveness and discussions with ISCO vendors and review of vendor-supplied publications to identify additional data needs and data collection efforts for design and execution of the pilot studies An additional cursory LOE is budgeted for compilation of existing Site data and boring logs from multiple Site documents and the Site analytical database for use in discussion with ISCO vendors Two low LOE are budgeted for the review of Site analytical data and boring logs to develop a vertical profiling technical approach (including locations for profiling sampling depths and techniques for retrieving the groundwater samples) and compilation and review of potential subcontractor information regarding their vertical profiling equipment and its applicability to the Site A half-cursory LOE is budgeted for review of the RA report to identify areas of the site where cobbles are anticipated to be a problem for most vertical profiling drilling rigs based on discussions with the TOPOs that indicated that such problems were prevalent at another nearby Superfund site Finally a cursory LOE is budgeted for review of the previous QAPP and groundwater analytical data to select analytical methods for the vertical profiling effort and advise the TOPOs on whether analysis for VOCs andor SVOCs in soil samples would be useful to support future treatability work

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A substantial portion of the effort related to ISCO technologies was expended before the November 3 meeting with EPA at which EPA decided that the bench and pilot-scale treatability studies would be put on hold and not budgeted in this TOPCE (see Attachment 1) Effort to evaluate vertical profiling equipment and review of data to select analytical methods has also been completed as necessary to allow budgeting of the vertical profiling subpool effort (Task 3) and the analytical laboratory budget (Task 4)

3114 Develop Task Order ProposafCost Estimate (Subtask 114) This subtask involves preparation and submittal of this draft TOPCE for conducting the tasks outlined in the SOW and agreed to during the November 3 2006 scoping meeting and November 8 2006 conference call with EPA This Task Order Proposal has been written to present the work breakdown structure (WBS) based on EPAs SOW and scope clarifications agreed to between EPA and MampE A summary of the clarifications was prepared by MampE and submitted to EPA on November 14 2006 (see Attachment 1) Budget is included for a draft TOPCE and a final cost estimate

Draft Task Order Proposal A narrative has been developed and a cost estimate prepared for the draft TOP The TOP identifies 1) the objectives of the technical tasks identified in the SOW and how these objectives will be met 2) a detailed description of the technical approach for each task and subtask within the WBS provided in the SOW and where appropriate assumptions used information needed information to be produced and work products and 3) a projected schedule for the task order

It is noted that MampE expended effort to begin developing the technical approach and cost estimate for many items in the SOW that have since been put on hold by EPA such as the bench and pilot-scale treatability studies (including LOE subpool and ODC estimates and a technical approach for monitoring the pilot test) the 25 well monitoring rounds (including LOE subpool and ODC estimates plus an analytical approach designed to help support the pilot test as well as monitor the VOC plume) and the data evaluation reports for the 25 well rounds (including technical approach for report content LOE estimate and ODC estimate) The technical and cost information for activities no longer included as part of this TOPCE will remain on file at MampE and it is anticipated that it will be used when EPA issues a Task Order Modification with Amended SOW for those activities

Cost Estimate The TOPCE provides a detailed cost estimate for each task as specified in the WBS provided in the SOW The cost estimate presents the level-of-effort (LOE) in terms of hours by grade level as well as labor costs and other direct costs for each task As noted above effort was expended to develop costs for activities no longer included in the SOW per EPA direction at the November 3 scoping meeting

Final TOPCE It is anticipated that a negotiation meeting by telephone will be conducted between EPA and MampE prior to TOPCE approval It is assumed that MampEs task order manager RAC Deputy Program Manager RAC Contract FinancialAdministration Manager MampEs Project Geologist and MampEs Project Engineer will be in attendance It is further assumed that no resubmittal of the draft TOP will be needed however submittal of a revised cost estimate has been budgeted A low LOE is budgeted for negotiations and revision of the cost estimate The Task Order Proposal requirement of the SOW will be considered to be complete upon EPA approval of the TOP and the final cost estimate

312 Preparation of Site-Specific Plans (Subtask 12) This subtask includes the preparation of a Site-Specific Health and Safety Plan and a Sampling and Analysis Plan (SAP)Field Sampling Plan (FSP) For the SAP one combined document referred to as a Quality Assurance Project Plan (QAPP) will be prepared for this project This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 -Ju ly4 2007)

3121 Site Management Plan (Subtask 121) This subtask has not been budgeted Site managementsecurity issues will instead be described in the Health and Safety Plan

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3122 Health and Safety Plan (Subtask 122) A Health and Safety Plan (HASP) will be prepared utilizing the previously prepared HASP for this Site The HASP will specify employee training protective equipment medical monitoring requirements standard operating procedures and a contingency plan in accordance with 29 CFR 191020 It is assumed that only one submittal of this plan will be made to EPA One cursory LOE is budgeted for this plan

3123 Sampling and Analysis Plan (Subtask 123) MampE will prepare a Quality Assurance Project Plan (QAPP) in accordance with EPA QAR-5 and the Region I EPA-New England Compendium of Quality Assurance Project Plan Requirements and Guidance (October 1999) The QAPP will describe the project objectives and organization functional activities and QAQC protocols to be used to achieve DQOs The sample collection methods sample locations and frequency sampling equipment and procedures and sample handling and analysis will also be included Whenever possible previously developed Sampling and Analysis Plans and QAPPs for this site will be utilized Based on discussions with the EPA TOPOs on November 8 2006 the QAPP will include a site plan showing proposed vertical profiling locations and a schematic cross-section to illustrate proposed groundwater sampling depths It is assumed that the draft QAPP will be completed within a high plus low LOE and will be based on the groundwater monitoring QAPP from Work Assignment 152 with worksheets and Standard Operating Procedures amplifiedmodified to incorporate protocols for vertical profiling sample collection and analysis including use of a field gas chromatograph (GC) It is assumed that the EPA OEME comments on the draft QAPP will require a low level of effort to be addressed including issuance of revisions to selected worksheets as necessary to address the comments

313 Project Management (Subtask 13) This subtask includes day-to-day management activities such as preparation of monthly progress reports project and staff scheduling monitoring and controlling costs and communications between EPA and MampE Based on the SOW the period-of-performance for this task order is from September 28 2006 through June 30 2008 for a total period of 21 months Of the 21 months 9 months are in Contract Year 1 and 12 months are in Contract Year 2

3131 Prepare Periodic Progress Reports (Subtask 131) It is assumed that 21 monthly progress reports and invoices will be prepared to document project cost and performance during the period-of-performance Nine reports are budgeted for Contract Year 1 and 12 are budgeted for Contract Year 2 The monthly progress reports will document cost and performance status by describing the project status by task anticipated schedules anticipated LOE usage for the following month and any problems or potential problems encountered or anticipated

In addition to monthly reporting the MampE task order manager will be responsible for the overall project coordination scheduling reporting and routine communication with EPA Activities anticipated typically include internal project meetings telephone discussions and electronic mail correspondence with the EPA TOPOs actions as the result of telephoneemail conversations preparing and editing correspondence monitoring and controlling labor hourscosts and actions schedule maintenance and approval staff scheduling project management and staff meetings problem resolution and routine administration for the period-of-performance

It is anticipated that the MampE task order manager will communicate several times weekly or as appropriate with the EPA TOPOs via telephone or e-mail For estimating purposes it is assumed that there will be a high degree of activity for the entire duration of the task order

314 Subcontract Procurement and Support Activities (Subtask 14) Several activities being conducted during field activities and during other tasks in order to complete activities in this SOW will require the services of outside subcontractors The efforts for procurement and management of the different subcontracts are included in this subtask while the estimated costs for the subcontracted work to be performed are included under the respective tasks for which the subcontracts are involved Technical efforts associated with scheduling field work coordination and technical interactions with subcontractors are budgeted under the appropriate field activity and analytical support subtasks

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3141 Identification and Procurement of Subcontractors (Subtask 141) Several subcontractors will be procured to support field work activities

bull Drilling for Monitoring Well Installation bull Vertical Profiling (to potentially include two subcontracts)

Analytical Services Investigation-Derived Waste (IDW) disposal

For the subcontractors cost estimates include development of specifications and technical SOWs bid review procurement of subcontractors and subcontract initiation activities In addition it is anticipated that half-day site visits will be attended by one MampE technical staff to meet with the drilling and vertical profiling bidders to evaluate the site and field conditions All quotations will be solicited on a competitive basis whenever possible

In addition to the above mentioned subcontracts DAS laboratories may be required to perform the 14-dioxane analyses for the vertical profiling sampling effort which is described in Section 3324 The OEME laboratory may perform the 14-dioxane analyses but DAS analyses are being budgeted in the event that the OEME laboratory does not have the capacity to perform the analyses when the vertical profiling event is performed For the cost estimate it is assumed that analytical specifications developed under the DAS Task Order and laboratories pre-qualified under the DAS Task Order will be used therefore no technical effort has been budgeted for procurement of the analytical laboratories

Drilling A drilling subcontract will be awarded to a firm to install 8 new monitoring wells When available to minimize costs MampE will utilize previously prepared Requests for Proposals (RFPs) to solicit this new subcontractor In total 23 hours have been budgeted to procure the drilling subcontractor which includes one cursory LOE to prepare the scope of work one cursory to prepare for and attend a site visit with the bidders and 3 hours to issue the subcontract

Vertical Profiling For vertical profiling to date MampE has identified only one subcontractor with the type of equipment recommended by EPA as necessary for this site because of the difficult drilling conditions (rocky soil) That subcontractor has told MampE that they have only one rig of that type MampE is attempting to identify other subcontractors with similar equipment so that competitive bids may be obtained and so that two rigs of similar type can be mobilized to the site If another local subcontractor with the EPA-recommended equipment cannot be located it may be necessary to prepare a sole-source procurement justification for the vertical profiling effort The LOE estimate for vertical profiling procurement is based on two separate procurements (so that two rigs may be utilized) The budget to procure the vertical profiling subcontractors includes one cursory LOE to identify more providers of a specialized vertical profiling rig one cursory LOE to prepare the scope of work (tailored to the specific equipment requirements) one cursory LOE to prepare for and conduct a site visit with the bidders and 6 hours to issue a subcontract to two separate bidders In addition 16 hours have been budgeted to prepare sole source justification memos for both of the subcontracts since it is likely that MampE will be unable to find multiple suppliers of such specialized equipment

Analytical Services Delivery of Analytical Services (DAS) laboratories may be utilized for analyses for 14-dioxane Laboratories pre-qualified under the DAS Work Assignment will be used No technical effort has been budgeted for procurement of the analytical laboratories subcontract management time or for the approval of the invoice Technical effort to prepare the DAS work order and hold a technical kickoff conference call with the laboratory is included under Task 52

Waste Disposal The waste disposal services being subcontracted will consist of removal from the site and disposal of IDW that will be generated during the field activities It is anticipated that the IDW will consist of contaminated personal protective equipment (PPE) decontamination

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fluids soils from the well installation and development and purge water from the groundwater wells and vertical profiling locations The IDW will be collected into 55-gallon drums which will be temporarily stored within the fenced-in site area It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil from the well installations and 2 drums of PPE for a total of 15 drums will be generated during field activities at the site To minimize costs MampE will utilize previously prepared Requests for Proposals to solicit this subcontractor One cursory LOE has been budgeted for preparation of the scope of work and to prepare required paperwork and coordinate with the waste disposal subcontractor In addition 3 hours have been budgeted to issue the subcontract to the selected bidder

For estimating purposes it is assumed that analytical data from environmental samples collected during the vertical profiling event will be sufficient to characterize the drum contents for bidding purposes and that only minimal additional testing of drum contents by the subcontractor will be needed prior to their removal It is also assumed that no more than 15 drums of waste will require disposal It is further assumed that the drum pick-up can be coordinated with field work activities and that removal of all drums can be completed within one half-day site visit (budgeted under Subtask 3210) to be scheduled after completion of both the vertical profiling effort and the well installation effort

3142 QA Program for Subcontractors (Subtask 142) MampE will provide QA oversight andor review of deliverables as appropriate for the subcontractors (drilling vertical profiling waste disposal analytical laboratory) being procured as part of this task order For the drilling vertical profiling and waste disposal subcontractors on-going monitoring of the services will be overseen during the field work by MampE technical field personnel in Subtask 324 For the analytical laboratory subcontract effort has been included for technical review of submittals (data electronic files etc) under Task 5 Therefore no budget is included under this subtask

3143 Subcontract Management (Subtask 143) The activities budgeted under this subtask include invoice review approval and payment for each of the subcontracts The cost estimate for invoice review assumes that each subcontractor will submit one invoice for a total of 5 invoices requiring review (one driller two vertical profiling subcontractors one DAS laboratory and one IDW disposal subcontractor) In total under 2 low LOE have been budgeted for this subtask

33 Data Acquisition (Task 3)

This task includes work efforts to plan and execute Pre-Design field activities for the possible implementation of In Situ Chemical Oxidation (ISCO) at the Ottati and Goss site The pre- and post-fieldwork LOE for each field task varies based on the number of people on a field team and the required post-fieldwork paper work Mobilization and demobilization efforts consist of tasks necessary to prepare and equip the field team for completing activities in the field and upon return to the office including preshyand post-office support of field work activities As part of this subtask the costs for mobilizationdemobilization efforts and support field efforts including the daily monitoring of field schedule and work completed and daily communications with field staff and EPA have been budgeted for each of the field activities

Mobilization efforts including pre-field work (office support) tasks consist of coordination and planningscheduling of daily field work and field events preparation of field-related paperwork (field log books sampling sheets air bills sample labels chain-of-custodies and traffic reports) and equipment and vehicle mobilization As part of each field activity a pre-field meeting will be held which typically includes attendance by the MampE Task Order Manager Project Hydrogeologist Project Chemist and relevant field personnel Time is also allotted for field personnel to read the HASP and QAPP In addition costs have been included to coordinate with the different subcontractors prior to commencement of field activities Demobilization efforts including equipment and vehicle demobilization maintenance of field equipment and post-field paperwork are also performed for each field activity

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The mobilization demobilization and pre- and post- fieldwork LOE for each task are different based on the type of task A higher amount of LOE for mobilization and de-mobilization has been budgeted for actual field work performed by MampE such as the vertical profiling sampling as opposed to oversight of well installation The pre- and post- fieldwork LOE also varies based on the number of people on a field team and the required post-fieldwork paper work An example of these includes LOE to read the QAPP and HASP would be greater for a larger field team and post-paperwork after well installation would include preparing and reviewing all of the boring logs

During all field activities each field team will maintain a field log book as well as other relevant log books typically used in the field The information to be recorded in the log book will be detailed in the QAPP and at a minimum will include information for each day on the site

Photographs will be taken to document site conditions and other pertinent observations and relevant photographs will be organized and compiled into photologs (labeled identified and dated) for submittal to EPA Any unusual events or deviations from project-specific documents will be recorded During field work it is anticipated that daily communications between field team personnel the MampE task order manager Project Hydrogeologist and Chemist and EPA will be maintained Technical effort has been budgeted for the respective field activities to support this necessary and frequent communication

A brief summary of the LOE has been included with the specific task Field days are assumed to be twelve (12) hours in length unless otherwise specified Each field task also includes LOE for pre- and post- field work activities

331 Mobilization and Demobilization of Field Activities Subtask 31) This subtask includes LOE and other direct costs (ODCs) to perform the following field activities MobilizationDemobilization of temporary facilities and Site Restoration The facilities include laboratoryfield office trailer steps laboratory equipment (field gas chromatograph and supporting equipment) and portable toilet Power also needs to be restored to the on-site trailer Mobilization activities are budgeted for Contract Year 1 and demobilization activities are budgeted for Contract Year 2

3311 Identify Field Support Equipment Supplies and Facilities Subtask 311) As part of the work identified in Subtask 332 MampE has included all ODCs for the necessary equipment to mobilize a field laboratory within the on-site MampE trailer currently present at the site and to coordinate with the power company to oversee restoration of power to the trailer A low LOE in Contract Year 1 has been allocated for identifying field support equipment supplies and facilities

3312 Mobilization (Subtask 312) A cursory LOE is budgeted for coordination with the power company including a half-day site visit (4 hours by one person) to oversee restoration of power In addition two half-day site visits (4 hours each by one person) are budgeted to oversee mobilization of the portable toilet and the trailer steps to the site Site visits will be combined whenever possible to reduce costs for mobilization The mobilization budget is included in Contract Year 1

3313 Demobilization (Subtask 313) The demobilization of the site including all temporary facilities and utilities will occur when all field tasks have been completed It is anticipated that it will take one (1) MampE staff member two 8-hour field days (including travel tofrom the site) to oversee the removal of all temporary facilities including the site trailer portable toilet and disconnection of power from the trailer The demobilization budget is included in Contract Year 2

332 Field Investigation (Subtask 32) As per MampEs scoping meeting with EPA on November 3 2006 this task involves vertical profiling in two areas of the site with collection of groundwater and soil samples and the installation of eight new monitoring wells for future use in monitoring a planned pilot-scale treatability test of the ISCO technology Other field tasks identifed in the EPA SOW are being deferred as described in the scoping meeting notes (see Attachment 1)

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The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

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been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

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member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

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31 Project Planning and Support (Task 1)

The following subsections identify the project planning elements necessary to complete the SOW This task consists of project planning attending a scoping meeting and participating in scope clarification discussions preparing notes from the meetingsdiscussions evaluating existing information developing the TOPCE preparation of site-specific plans and project and subcontract management activities

311 Project Planning (Subtask 11) As specified in the SOW this subtask describes the intended work effort for development of this task order proposal This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 - July 4 2007)

3111 Attend Scoping Meeting (Subtask 111) A technical scoping meeting was held at EPA in Boston on November 3 2006 for the purposes of clarifying the scope and technical aspects of the project Five MampE personnel including the RAC deputy program manager RAC contract manager task order manager task order engineer and task order hydrogeologist attended the meeting The meeting was also attended by the EPA TOPOs the EPA Project Officer the EPA Contracting Officer (by phone) the NH Section Chief and the NHDES project manager (by phone) The notes from the meeting are included in Attachment 1 The notes include summaries of both the technical discussions and the scoping discussions

After the November 3 2006 meeting a second meeting was held via conference call with the EPA TOPOs and EPA hydrogeologist to clarify the vertical profiling and well installation effort with respect to technical details regarding soil sampling and equipment limitations in rocky soil The effort for preparation of the QAPP and the deliverables from the vertical profiling effort was also clarified The MampE technical team (task order manager engineer and hydrogeologist) participated in the call The decisions reached during that call are included in the notes in Attachment 1

3113 Evaluate Existing Information (Subtask 113) MampE is evaluating existing Site data and documents including the RIFS the ROD the OU-4 RA Report recent sampling data and the ADL OU 3 Remedial Design In addition MampE has evaluated existing EPA guidance documents and vendor literature regarding ISCO technologies and various types of vertical profiling equipment for applicability to Site conditions to the degree necessary to support development of the TOPCE Site data and boring logs were also compiled for use in discussions with potential subcontractors for the ISCO and vertical profiling portions of the EPA SOW

A medium LOE is budgeted for evaluation of existing information related to ISCO technologies including the following efforts evaluation of the Site plume and hot spots for applicability of ISCO and the potential utility of piloting both hot spots using the same or different oxidants review of EPA guidance documents to develop technical approaches for bench-scale tests and analyses to monitor pilot test effectiveness and discussions with ISCO vendors and review of vendor-supplied publications to identify additional data needs and data collection efforts for design and execution of the pilot studies An additional cursory LOE is budgeted for compilation of existing Site data and boring logs from multiple Site documents and the Site analytical database for use in discussion with ISCO vendors Two low LOE are budgeted for the review of Site analytical data and boring logs to develop a vertical profiling technical approach (including locations for profiling sampling depths and techniques for retrieving the groundwater samples) and compilation and review of potential subcontractor information regarding their vertical profiling equipment and its applicability to the Site A half-cursory LOE is budgeted for review of the RA report to identify areas of the site where cobbles are anticipated to be a problem for most vertical profiling drilling rigs based on discussions with the TOPOs that indicated that such problems were prevalent at another nearby Superfund site Finally a cursory LOE is budgeted for review of the previous QAPP and groundwater analytical data to select analytical methods for the vertical profiling effort and advise the TOPOs on whether analysis for VOCs andor SVOCs in soil samples would be useful to support future treatability work

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A substantial portion of the effort related to ISCO technologies was expended before the November 3 meeting with EPA at which EPA decided that the bench and pilot-scale treatability studies would be put on hold and not budgeted in this TOPCE (see Attachment 1) Effort to evaluate vertical profiling equipment and review of data to select analytical methods has also been completed as necessary to allow budgeting of the vertical profiling subpool effort (Task 3) and the analytical laboratory budget (Task 4)

3114 Develop Task Order ProposafCost Estimate (Subtask 114) This subtask involves preparation and submittal of this draft TOPCE for conducting the tasks outlined in the SOW and agreed to during the November 3 2006 scoping meeting and November 8 2006 conference call with EPA This Task Order Proposal has been written to present the work breakdown structure (WBS) based on EPAs SOW and scope clarifications agreed to between EPA and MampE A summary of the clarifications was prepared by MampE and submitted to EPA on November 14 2006 (see Attachment 1) Budget is included for a draft TOPCE and a final cost estimate

Draft Task Order Proposal A narrative has been developed and a cost estimate prepared for the draft TOP The TOP identifies 1) the objectives of the technical tasks identified in the SOW and how these objectives will be met 2) a detailed description of the technical approach for each task and subtask within the WBS provided in the SOW and where appropriate assumptions used information needed information to be produced and work products and 3) a projected schedule for the task order

It is noted that MampE expended effort to begin developing the technical approach and cost estimate for many items in the SOW that have since been put on hold by EPA such as the bench and pilot-scale treatability studies (including LOE subpool and ODC estimates and a technical approach for monitoring the pilot test) the 25 well monitoring rounds (including LOE subpool and ODC estimates plus an analytical approach designed to help support the pilot test as well as monitor the VOC plume) and the data evaluation reports for the 25 well rounds (including technical approach for report content LOE estimate and ODC estimate) The technical and cost information for activities no longer included as part of this TOPCE will remain on file at MampE and it is anticipated that it will be used when EPA issues a Task Order Modification with Amended SOW for those activities

Cost Estimate The TOPCE provides a detailed cost estimate for each task as specified in the WBS provided in the SOW The cost estimate presents the level-of-effort (LOE) in terms of hours by grade level as well as labor costs and other direct costs for each task As noted above effort was expended to develop costs for activities no longer included in the SOW per EPA direction at the November 3 scoping meeting

Final TOPCE It is anticipated that a negotiation meeting by telephone will be conducted between EPA and MampE prior to TOPCE approval It is assumed that MampEs task order manager RAC Deputy Program Manager RAC Contract FinancialAdministration Manager MampEs Project Geologist and MampEs Project Engineer will be in attendance It is further assumed that no resubmittal of the draft TOP will be needed however submittal of a revised cost estimate has been budgeted A low LOE is budgeted for negotiations and revision of the cost estimate The Task Order Proposal requirement of the SOW will be considered to be complete upon EPA approval of the TOP and the final cost estimate

312 Preparation of Site-Specific Plans (Subtask 12) This subtask includes the preparation of a Site-Specific Health and Safety Plan and a Sampling and Analysis Plan (SAP)Field Sampling Plan (FSP) For the SAP one combined document referred to as a Quality Assurance Project Plan (QAPP) will be prepared for this project This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 -Ju ly4 2007)

3121 Site Management Plan (Subtask 121) This subtask has not been budgeted Site managementsecurity issues will instead be described in the Health and Safety Plan

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3122 Health and Safety Plan (Subtask 122) A Health and Safety Plan (HASP) will be prepared utilizing the previously prepared HASP for this Site The HASP will specify employee training protective equipment medical monitoring requirements standard operating procedures and a contingency plan in accordance with 29 CFR 191020 It is assumed that only one submittal of this plan will be made to EPA One cursory LOE is budgeted for this plan

3123 Sampling and Analysis Plan (Subtask 123) MampE will prepare a Quality Assurance Project Plan (QAPP) in accordance with EPA QAR-5 and the Region I EPA-New England Compendium of Quality Assurance Project Plan Requirements and Guidance (October 1999) The QAPP will describe the project objectives and organization functional activities and QAQC protocols to be used to achieve DQOs The sample collection methods sample locations and frequency sampling equipment and procedures and sample handling and analysis will also be included Whenever possible previously developed Sampling and Analysis Plans and QAPPs for this site will be utilized Based on discussions with the EPA TOPOs on November 8 2006 the QAPP will include a site plan showing proposed vertical profiling locations and a schematic cross-section to illustrate proposed groundwater sampling depths It is assumed that the draft QAPP will be completed within a high plus low LOE and will be based on the groundwater monitoring QAPP from Work Assignment 152 with worksheets and Standard Operating Procedures amplifiedmodified to incorporate protocols for vertical profiling sample collection and analysis including use of a field gas chromatograph (GC) It is assumed that the EPA OEME comments on the draft QAPP will require a low level of effort to be addressed including issuance of revisions to selected worksheets as necessary to address the comments

313 Project Management (Subtask 13) This subtask includes day-to-day management activities such as preparation of monthly progress reports project and staff scheduling monitoring and controlling costs and communications between EPA and MampE Based on the SOW the period-of-performance for this task order is from September 28 2006 through June 30 2008 for a total period of 21 months Of the 21 months 9 months are in Contract Year 1 and 12 months are in Contract Year 2

3131 Prepare Periodic Progress Reports (Subtask 131) It is assumed that 21 monthly progress reports and invoices will be prepared to document project cost and performance during the period-of-performance Nine reports are budgeted for Contract Year 1 and 12 are budgeted for Contract Year 2 The monthly progress reports will document cost and performance status by describing the project status by task anticipated schedules anticipated LOE usage for the following month and any problems or potential problems encountered or anticipated

In addition to monthly reporting the MampE task order manager will be responsible for the overall project coordination scheduling reporting and routine communication with EPA Activities anticipated typically include internal project meetings telephone discussions and electronic mail correspondence with the EPA TOPOs actions as the result of telephoneemail conversations preparing and editing correspondence monitoring and controlling labor hourscosts and actions schedule maintenance and approval staff scheduling project management and staff meetings problem resolution and routine administration for the period-of-performance

It is anticipated that the MampE task order manager will communicate several times weekly or as appropriate with the EPA TOPOs via telephone or e-mail For estimating purposes it is assumed that there will be a high degree of activity for the entire duration of the task order

314 Subcontract Procurement and Support Activities (Subtask 14) Several activities being conducted during field activities and during other tasks in order to complete activities in this SOW will require the services of outside subcontractors The efforts for procurement and management of the different subcontracts are included in this subtask while the estimated costs for the subcontracted work to be performed are included under the respective tasks for which the subcontracts are involved Technical efforts associated with scheduling field work coordination and technical interactions with subcontractors are budgeted under the appropriate field activity and analytical support subtasks

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3141 Identification and Procurement of Subcontractors (Subtask 141) Several subcontractors will be procured to support field work activities

bull Drilling for Monitoring Well Installation bull Vertical Profiling (to potentially include two subcontracts)

Analytical Services Investigation-Derived Waste (IDW) disposal

For the subcontractors cost estimates include development of specifications and technical SOWs bid review procurement of subcontractors and subcontract initiation activities In addition it is anticipated that half-day site visits will be attended by one MampE technical staff to meet with the drilling and vertical profiling bidders to evaluate the site and field conditions All quotations will be solicited on a competitive basis whenever possible

In addition to the above mentioned subcontracts DAS laboratories may be required to perform the 14-dioxane analyses for the vertical profiling sampling effort which is described in Section 3324 The OEME laboratory may perform the 14-dioxane analyses but DAS analyses are being budgeted in the event that the OEME laboratory does not have the capacity to perform the analyses when the vertical profiling event is performed For the cost estimate it is assumed that analytical specifications developed under the DAS Task Order and laboratories pre-qualified under the DAS Task Order will be used therefore no technical effort has been budgeted for procurement of the analytical laboratories

Drilling A drilling subcontract will be awarded to a firm to install 8 new monitoring wells When available to minimize costs MampE will utilize previously prepared Requests for Proposals (RFPs) to solicit this new subcontractor In total 23 hours have been budgeted to procure the drilling subcontractor which includes one cursory LOE to prepare the scope of work one cursory to prepare for and attend a site visit with the bidders and 3 hours to issue the subcontract

Vertical Profiling For vertical profiling to date MampE has identified only one subcontractor with the type of equipment recommended by EPA as necessary for this site because of the difficult drilling conditions (rocky soil) That subcontractor has told MampE that they have only one rig of that type MampE is attempting to identify other subcontractors with similar equipment so that competitive bids may be obtained and so that two rigs of similar type can be mobilized to the site If another local subcontractor with the EPA-recommended equipment cannot be located it may be necessary to prepare a sole-source procurement justification for the vertical profiling effort The LOE estimate for vertical profiling procurement is based on two separate procurements (so that two rigs may be utilized) The budget to procure the vertical profiling subcontractors includes one cursory LOE to identify more providers of a specialized vertical profiling rig one cursory LOE to prepare the scope of work (tailored to the specific equipment requirements) one cursory LOE to prepare for and conduct a site visit with the bidders and 6 hours to issue a subcontract to two separate bidders In addition 16 hours have been budgeted to prepare sole source justification memos for both of the subcontracts since it is likely that MampE will be unable to find multiple suppliers of such specialized equipment

Analytical Services Delivery of Analytical Services (DAS) laboratories may be utilized for analyses for 14-dioxane Laboratories pre-qualified under the DAS Work Assignment will be used No technical effort has been budgeted for procurement of the analytical laboratories subcontract management time or for the approval of the invoice Technical effort to prepare the DAS work order and hold a technical kickoff conference call with the laboratory is included under Task 52

Waste Disposal The waste disposal services being subcontracted will consist of removal from the site and disposal of IDW that will be generated during the field activities It is anticipated that the IDW will consist of contaminated personal protective equipment (PPE) decontamination

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fluids soils from the well installation and development and purge water from the groundwater wells and vertical profiling locations The IDW will be collected into 55-gallon drums which will be temporarily stored within the fenced-in site area It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil from the well installations and 2 drums of PPE for a total of 15 drums will be generated during field activities at the site To minimize costs MampE will utilize previously prepared Requests for Proposals to solicit this subcontractor One cursory LOE has been budgeted for preparation of the scope of work and to prepare required paperwork and coordinate with the waste disposal subcontractor In addition 3 hours have been budgeted to issue the subcontract to the selected bidder

For estimating purposes it is assumed that analytical data from environmental samples collected during the vertical profiling event will be sufficient to characterize the drum contents for bidding purposes and that only minimal additional testing of drum contents by the subcontractor will be needed prior to their removal It is also assumed that no more than 15 drums of waste will require disposal It is further assumed that the drum pick-up can be coordinated with field work activities and that removal of all drums can be completed within one half-day site visit (budgeted under Subtask 3210) to be scheduled after completion of both the vertical profiling effort and the well installation effort

3142 QA Program for Subcontractors (Subtask 142) MampE will provide QA oversight andor review of deliverables as appropriate for the subcontractors (drilling vertical profiling waste disposal analytical laboratory) being procured as part of this task order For the drilling vertical profiling and waste disposal subcontractors on-going monitoring of the services will be overseen during the field work by MampE technical field personnel in Subtask 324 For the analytical laboratory subcontract effort has been included for technical review of submittals (data electronic files etc) under Task 5 Therefore no budget is included under this subtask

3143 Subcontract Management (Subtask 143) The activities budgeted under this subtask include invoice review approval and payment for each of the subcontracts The cost estimate for invoice review assumes that each subcontractor will submit one invoice for a total of 5 invoices requiring review (one driller two vertical profiling subcontractors one DAS laboratory and one IDW disposal subcontractor) In total under 2 low LOE have been budgeted for this subtask

33 Data Acquisition (Task 3)

This task includes work efforts to plan and execute Pre-Design field activities for the possible implementation of In Situ Chemical Oxidation (ISCO) at the Ottati and Goss site The pre- and post-fieldwork LOE for each field task varies based on the number of people on a field team and the required post-fieldwork paper work Mobilization and demobilization efforts consist of tasks necessary to prepare and equip the field team for completing activities in the field and upon return to the office including preshyand post-office support of field work activities As part of this subtask the costs for mobilizationdemobilization efforts and support field efforts including the daily monitoring of field schedule and work completed and daily communications with field staff and EPA have been budgeted for each of the field activities

Mobilization efforts including pre-field work (office support) tasks consist of coordination and planningscheduling of daily field work and field events preparation of field-related paperwork (field log books sampling sheets air bills sample labels chain-of-custodies and traffic reports) and equipment and vehicle mobilization As part of each field activity a pre-field meeting will be held which typically includes attendance by the MampE Task Order Manager Project Hydrogeologist Project Chemist and relevant field personnel Time is also allotted for field personnel to read the HASP and QAPP In addition costs have been included to coordinate with the different subcontractors prior to commencement of field activities Demobilization efforts including equipment and vehicle demobilization maintenance of field equipment and post-field paperwork are also performed for each field activity

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The mobilization demobilization and pre- and post- fieldwork LOE for each task are different based on the type of task A higher amount of LOE for mobilization and de-mobilization has been budgeted for actual field work performed by MampE such as the vertical profiling sampling as opposed to oversight of well installation The pre- and post- fieldwork LOE also varies based on the number of people on a field team and the required post-fieldwork paper work An example of these includes LOE to read the QAPP and HASP would be greater for a larger field team and post-paperwork after well installation would include preparing and reviewing all of the boring logs

During all field activities each field team will maintain a field log book as well as other relevant log books typically used in the field The information to be recorded in the log book will be detailed in the QAPP and at a minimum will include information for each day on the site

Photographs will be taken to document site conditions and other pertinent observations and relevant photographs will be organized and compiled into photologs (labeled identified and dated) for submittal to EPA Any unusual events or deviations from project-specific documents will be recorded During field work it is anticipated that daily communications between field team personnel the MampE task order manager Project Hydrogeologist and Chemist and EPA will be maintained Technical effort has been budgeted for the respective field activities to support this necessary and frequent communication

A brief summary of the LOE has been included with the specific task Field days are assumed to be twelve (12) hours in length unless otherwise specified Each field task also includes LOE for pre- and post- field work activities

331 Mobilization and Demobilization of Field Activities Subtask 31) This subtask includes LOE and other direct costs (ODCs) to perform the following field activities MobilizationDemobilization of temporary facilities and Site Restoration The facilities include laboratoryfield office trailer steps laboratory equipment (field gas chromatograph and supporting equipment) and portable toilet Power also needs to be restored to the on-site trailer Mobilization activities are budgeted for Contract Year 1 and demobilization activities are budgeted for Contract Year 2

3311 Identify Field Support Equipment Supplies and Facilities Subtask 311) As part of the work identified in Subtask 332 MampE has included all ODCs for the necessary equipment to mobilize a field laboratory within the on-site MampE trailer currently present at the site and to coordinate with the power company to oversee restoration of power to the trailer A low LOE in Contract Year 1 has been allocated for identifying field support equipment supplies and facilities

3312 Mobilization (Subtask 312) A cursory LOE is budgeted for coordination with the power company including a half-day site visit (4 hours by one person) to oversee restoration of power In addition two half-day site visits (4 hours each by one person) are budgeted to oversee mobilization of the portable toilet and the trailer steps to the site Site visits will be combined whenever possible to reduce costs for mobilization The mobilization budget is included in Contract Year 1

3313 Demobilization (Subtask 313) The demobilization of the site including all temporary facilities and utilities will occur when all field tasks have been completed It is anticipated that it will take one (1) MampE staff member two 8-hour field days (including travel tofrom the site) to oversee the removal of all temporary facilities including the site trailer portable toilet and disconnection of power from the trailer The demobilization budget is included in Contract Year 2

332 Field Investigation (Subtask 32) As per MampEs scoping meeting with EPA on November 3 2006 this task involves vertical profiling in two areas of the site with collection of groundwater and soil samples and the installation of eight new monitoring wells for future use in monitoring a planned pilot-scale treatability test of the ISCO technology Other field tasks identifed in the EPA SOW are being deferred as described in the scoping meeting notes (see Attachment 1)

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The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

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been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

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member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

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A substantial portion of the effort related to ISCO technologies was expended before the November 3 meeting with EPA at which EPA decided that the bench and pilot-scale treatability studies would be put on hold and not budgeted in this TOPCE (see Attachment 1) Effort to evaluate vertical profiling equipment and review of data to select analytical methods has also been completed as necessary to allow budgeting of the vertical profiling subpool effort (Task 3) and the analytical laboratory budget (Task 4)

3114 Develop Task Order ProposafCost Estimate (Subtask 114) This subtask involves preparation and submittal of this draft TOPCE for conducting the tasks outlined in the SOW and agreed to during the November 3 2006 scoping meeting and November 8 2006 conference call with EPA This Task Order Proposal has been written to present the work breakdown structure (WBS) based on EPAs SOW and scope clarifications agreed to between EPA and MampE A summary of the clarifications was prepared by MampE and submitted to EPA on November 14 2006 (see Attachment 1) Budget is included for a draft TOPCE and a final cost estimate

Draft Task Order Proposal A narrative has been developed and a cost estimate prepared for the draft TOP The TOP identifies 1) the objectives of the technical tasks identified in the SOW and how these objectives will be met 2) a detailed description of the technical approach for each task and subtask within the WBS provided in the SOW and where appropriate assumptions used information needed information to be produced and work products and 3) a projected schedule for the task order

It is noted that MampE expended effort to begin developing the technical approach and cost estimate for many items in the SOW that have since been put on hold by EPA such as the bench and pilot-scale treatability studies (including LOE subpool and ODC estimates and a technical approach for monitoring the pilot test) the 25 well monitoring rounds (including LOE subpool and ODC estimates plus an analytical approach designed to help support the pilot test as well as monitor the VOC plume) and the data evaluation reports for the 25 well rounds (including technical approach for report content LOE estimate and ODC estimate) The technical and cost information for activities no longer included as part of this TOPCE will remain on file at MampE and it is anticipated that it will be used when EPA issues a Task Order Modification with Amended SOW for those activities

Cost Estimate The TOPCE provides a detailed cost estimate for each task as specified in the WBS provided in the SOW The cost estimate presents the level-of-effort (LOE) in terms of hours by grade level as well as labor costs and other direct costs for each task As noted above effort was expended to develop costs for activities no longer included in the SOW per EPA direction at the November 3 scoping meeting

Final TOPCE It is anticipated that a negotiation meeting by telephone will be conducted between EPA and MampE prior to TOPCE approval It is assumed that MampEs task order manager RAC Deputy Program Manager RAC Contract FinancialAdministration Manager MampEs Project Geologist and MampEs Project Engineer will be in attendance It is further assumed that no resubmittal of the draft TOP will be needed however submittal of a revised cost estimate has been budgeted A low LOE is budgeted for negotiations and revision of the cost estimate The Task Order Proposal requirement of the SOW will be considered to be complete upon EPA approval of the TOP and the final cost estimate

312 Preparation of Site-Specific Plans (Subtask 12) This subtask includes the preparation of a Site-Specific Health and Safety Plan and a Sampling and Analysis Plan (SAP)Field Sampling Plan (FSP) For the SAP one combined document referred to as a Quality Assurance Project Plan (QAPP) will be prepared for this project This subtask in its entirety is budgeted for Contract Year 1 (July 5 2006 -Ju ly4 2007)

3121 Site Management Plan (Subtask 121) This subtask has not been budgeted Site managementsecurity issues will instead be described in the Health and Safety Plan

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3122 Health and Safety Plan (Subtask 122) A Health and Safety Plan (HASP) will be prepared utilizing the previously prepared HASP for this Site The HASP will specify employee training protective equipment medical monitoring requirements standard operating procedures and a contingency plan in accordance with 29 CFR 191020 It is assumed that only one submittal of this plan will be made to EPA One cursory LOE is budgeted for this plan

3123 Sampling and Analysis Plan (Subtask 123) MampE will prepare a Quality Assurance Project Plan (QAPP) in accordance with EPA QAR-5 and the Region I EPA-New England Compendium of Quality Assurance Project Plan Requirements and Guidance (October 1999) The QAPP will describe the project objectives and organization functional activities and QAQC protocols to be used to achieve DQOs The sample collection methods sample locations and frequency sampling equipment and procedures and sample handling and analysis will also be included Whenever possible previously developed Sampling and Analysis Plans and QAPPs for this site will be utilized Based on discussions with the EPA TOPOs on November 8 2006 the QAPP will include a site plan showing proposed vertical profiling locations and a schematic cross-section to illustrate proposed groundwater sampling depths It is assumed that the draft QAPP will be completed within a high plus low LOE and will be based on the groundwater monitoring QAPP from Work Assignment 152 with worksheets and Standard Operating Procedures amplifiedmodified to incorporate protocols for vertical profiling sample collection and analysis including use of a field gas chromatograph (GC) It is assumed that the EPA OEME comments on the draft QAPP will require a low level of effort to be addressed including issuance of revisions to selected worksheets as necessary to address the comments

313 Project Management (Subtask 13) This subtask includes day-to-day management activities such as preparation of monthly progress reports project and staff scheduling monitoring and controlling costs and communications between EPA and MampE Based on the SOW the period-of-performance for this task order is from September 28 2006 through June 30 2008 for a total period of 21 months Of the 21 months 9 months are in Contract Year 1 and 12 months are in Contract Year 2

3131 Prepare Periodic Progress Reports (Subtask 131) It is assumed that 21 monthly progress reports and invoices will be prepared to document project cost and performance during the period-of-performance Nine reports are budgeted for Contract Year 1 and 12 are budgeted for Contract Year 2 The monthly progress reports will document cost and performance status by describing the project status by task anticipated schedules anticipated LOE usage for the following month and any problems or potential problems encountered or anticipated

In addition to monthly reporting the MampE task order manager will be responsible for the overall project coordination scheduling reporting and routine communication with EPA Activities anticipated typically include internal project meetings telephone discussions and electronic mail correspondence with the EPA TOPOs actions as the result of telephoneemail conversations preparing and editing correspondence monitoring and controlling labor hourscosts and actions schedule maintenance and approval staff scheduling project management and staff meetings problem resolution and routine administration for the period-of-performance

It is anticipated that the MampE task order manager will communicate several times weekly or as appropriate with the EPA TOPOs via telephone or e-mail For estimating purposes it is assumed that there will be a high degree of activity for the entire duration of the task order

314 Subcontract Procurement and Support Activities (Subtask 14) Several activities being conducted during field activities and during other tasks in order to complete activities in this SOW will require the services of outside subcontractors The efforts for procurement and management of the different subcontracts are included in this subtask while the estimated costs for the subcontracted work to be performed are included under the respective tasks for which the subcontracts are involved Technical efforts associated with scheduling field work coordination and technical interactions with subcontractors are budgeted under the appropriate field activity and analytical support subtasks

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3141 Identification and Procurement of Subcontractors (Subtask 141) Several subcontractors will be procured to support field work activities

bull Drilling for Monitoring Well Installation bull Vertical Profiling (to potentially include two subcontracts)

Analytical Services Investigation-Derived Waste (IDW) disposal

For the subcontractors cost estimates include development of specifications and technical SOWs bid review procurement of subcontractors and subcontract initiation activities In addition it is anticipated that half-day site visits will be attended by one MampE technical staff to meet with the drilling and vertical profiling bidders to evaluate the site and field conditions All quotations will be solicited on a competitive basis whenever possible

In addition to the above mentioned subcontracts DAS laboratories may be required to perform the 14-dioxane analyses for the vertical profiling sampling effort which is described in Section 3324 The OEME laboratory may perform the 14-dioxane analyses but DAS analyses are being budgeted in the event that the OEME laboratory does not have the capacity to perform the analyses when the vertical profiling event is performed For the cost estimate it is assumed that analytical specifications developed under the DAS Task Order and laboratories pre-qualified under the DAS Task Order will be used therefore no technical effort has been budgeted for procurement of the analytical laboratories

Drilling A drilling subcontract will be awarded to a firm to install 8 new monitoring wells When available to minimize costs MampE will utilize previously prepared Requests for Proposals (RFPs) to solicit this new subcontractor In total 23 hours have been budgeted to procure the drilling subcontractor which includes one cursory LOE to prepare the scope of work one cursory to prepare for and attend a site visit with the bidders and 3 hours to issue the subcontract

Vertical Profiling For vertical profiling to date MampE has identified only one subcontractor with the type of equipment recommended by EPA as necessary for this site because of the difficult drilling conditions (rocky soil) That subcontractor has told MampE that they have only one rig of that type MampE is attempting to identify other subcontractors with similar equipment so that competitive bids may be obtained and so that two rigs of similar type can be mobilized to the site If another local subcontractor with the EPA-recommended equipment cannot be located it may be necessary to prepare a sole-source procurement justification for the vertical profiling effort The LOE estimate for vertical profiling procurement is based on two separate procurements (so that two rigs may be utilized) The budget to procure the vertical profiling subcontractors includes one cursory LOE to identify more providers of a specialized vertical profiling rig one cursory LOE to prepare the scope of work (tailored to the specific equipment requirements) one cursory LOE to prepare for and conduct a site visit with the bidders and 6 hours to issue a subcontract to two separate bidders In addition 16 hours have been budgeted to prepare sole source justification memos for both of the subcontracts since it is likely that MampE will be unable to find multiple suppliers of such specialized equipment

Analytical Services Delivery of Analytical Services (DAS) laboratories may be utilized for analyses for 14-dioxane Laboratories pre-qualified under the DAS Work Assignment will be used No technical effort has been budgeted for procurement of the analytical laboratories subcontract management time or for the approval of the invoice Technical effort to prepare the DAS work order and hold a technical kickoff conference call with the laboratory is included under Task 52

Waste Disposal The waste disposal services being subcontracted will consist of removal from the site and disposal of IDW that will be generated during the field activities It is anticipated that the IDW will consist of contaminated personal protective equipment (PPE) decontamination

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fluids soils from the well installation and development and purge water from the groundwater wells and vertical profiling locations The IDW will be collected into 55-gallon drums which will be temporarily stored within the fenced-in site area It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil from the well installations and 2 drums of PPE for a total of 15 drums will be generated during field activities at the site To minimize costs MampE will utilize previously prepared Requests for Proposals to solicit this subcontractor One cursory LOE has been budgeted for preparation of the scope of work and to prepare required paperwork and coordinate with the waste disposal subcontractor In addition 3 hours have been budgeted to issue the subcontract to the selected bidder

For estimating purposes it is assumed that analytical data from environmental samples collected during the vertical profiling event will be sufficient to characterize the drum contents for bidding purposes and that only minimal additional testing of drum contents by the subcontractor will be needed prior to their removal It is also assumed that no more than 15 drums of waste will require disposal It is further assumed that the drum pick-up can be coordinated with field work activities and that removal of all drums can be completed within one half-day site visit (budgeted under Subtask 3210) to be scheduled after completion of both the vertical profiling effort and the well installation effort

3142 QA Program for Subcontractors (Subtask 142) MampE will provide QA oversight andor review of deliverables as appropriate for the subcontractors (drilling vertical profiling waste disposal analytical laboratory) being procured as part of this task order For the drilling vertical profiling and waste disposal subcontractors on-going monitoring of the services will be overseen during the field work by MampE technical field personnel in Subtask 324 For the analytical laboratory subcontract effort has been included for technical review of submittals (data electronic files etc) under Task 5 Therefore no budget is included under this subtask

3143 Subcontract Management (Subtask 143) The activities budgeted under this subtask include invoice review approval and payment for each of the subcontracts The cost estimate for invoice review assumes that each subcontractor will submit one invoice for a total of 5 invoices requiring review (one driller two vertical profiling subcontractors one DAS laboratory and one IDW disposal subcontractor) In total under 2 low LOE have been budgeted for this subtask

33 Data Acquisition (Task 3)

This task includes work efforts to plan and execute Pre-Design field activities for the possible implementation of In Situ Chemical Oxidation (ISCO) at the Ottati and Goss site The pre- and post-fieldwork LOE for each field task varies based on the number of people on a field team and the required post-fieldwork paper work Mobilization and demobilization efforts consist of tasks necessary to prepare and equip the field team for completing activities in the field and upon return to the office including preshyand post-office support of field work activities As part of this subtask the costs for mobilizationdemobilization efforts and support field efforts including the daily monitoring of field schedule and work completed and daily communications with field staff and EPA have been budgeted for each of the field activities

Mobilization efforts including pre-field work (office support) tasks consist of coordination and planningscheduling of daily field work and field events preparation of field-related paperwork (field log books sampling sheets air bills sample labels chain-of-custodies and traffic reports) and equipment and vehicle mobilization As part of each field activity a pre-field meeting will be held which typically includes attendance by the MampE Task Order Manager Project Hydrogeologist Project Chemist and relevant field personnel Time is also allotted for field personnel to read the HASP and QAPP In addition costs have been included to coordinate with the different subcontractors prior to commencement of field activities Demobilization efforts including equipment and vehicle demobilization maintenance of field equipment and post-field paperwork are also performed for each field activity

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The mobilization demobilization and pre- and post- fieldwork LOE for each task are different based on the type of task A higher amount of LOE for mobilization and de-mobilization has been budgeted for actual field work performed by MampE such as the vertical profiling sampling as opposed to oversight of well installation The pre- and post- fieldwork LOE also varies based on the number of people on a field team and the required post-fieldwork paper work An example of these includes LOE to read the QAPP and HASP would be greater for a larger field team and post-paperwork after well installation would include preparing and reviewing all of the boring logs

During all field activities each field team will maintain a field log book as well as other relevant log books typically used in the field The information to be recorded in the log book will be detailed in the QAPP and at a minimum will include information for each day on the site

Photographs will be taken to document site conditions and other pertinent observations and relevant photographs will be organized and compiled into photologs (labeled identified and dated) for submittal to EPA Any unusual events or deviations from project-specific documents will be recorded During field work it is anticipated that daily communications between field team personnel the MampE task order manager Project Hydrogeologist and Chemist and EPA will be maintained Technical effort has been budgeted for the respective field activities to support this necessary and frequent communication

A brief summary of the LOE has been included with the specific task Field days are assumed to be twelve (12) hours in length unless otherwise specified Each field task also includes LOE for pre- and post- field work activities

331 Mobilization and Demobilization of Field Activities Subtask 31) This subtask includes LOE and other direct costs (ODCs) to perform the following field activities MobilizationDemobilization of temporary facilities and Site Restoration The facilities include laboratoryfield office trailer steps laboratory equipment (field gas chromatograph and supporting equipment) and portable toilet Power also needs to be restored to the on-site trailer Mobilization activities are budgeted for Contract Year 1 and demobilization activities are budgeted for Contract Year 2

3311 Identify Field Support Equipment Supplies and Facilities Subtask 311) As part of the work identified in Subtask 332 MampE has included all ODCs for the necessary equipment to mobilize a field laboratory within the on-site MampE trailer currently present at the site and to coordinate with the power company to oversee restoration of power to the trailer A low LOE in Contract Year 1 has been allocated for identifying field support equipment supplies and facilities

3312 Mobilization (Subtask 312) A cursory LOE is budgeted for coordination with the power company including a half-day site visit (4 hours by one person) to oversee restoration of power In addition two half-day site visits (4 hours each by one person) are budgeted to oversee mobilization of the portable toilet and the trailer steps to the site Site visits will be combined whenever possible to reduce costs for mobilization The mobilization budget is included in Contract Year 1

3313 Demobilization (Subtask 313) The demobilization of the site including all temporary facilities and utilities will occur when all field tasks have been completed It is anticipated that it will take one (1) MampE staff member two 8-hour field days (including travel tofrom the site) to oversee the removal of all temporary facilities including the site trailer portable toilet and disconnection of power from the trailer The demobilization budget is included in Contract Year 2

332 Field Investigation (Subtask 32) As per MampEs scoping meeting with EPA on November 3 2006 this task involves vertical profiling in two areas of the site with collection of groundwater and soil samples and the installation of eight new monitoring wells for future use in monitoring a planned pilot-scale treatability test of the ISCO technology Other field tasks identifed in the EPA SOW are being deferred as described in the scoping meeting notes (see Attachment 1)

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The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

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been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

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member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

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3122 Health and Safety Plan (Subtask 122) A Health and Safety Plan (HASP) will be prepared utilizing the previously prepared HASP for this Site The HASP will specify employee training protective equipment medical monitoring requirements standard operating procedures and a contingency plan in accordance with 29 CFR 191020 It is assumed that only one submittal of this plan will be made to EPA One cursory LOE is budgeted for this plan

3123 Sampling and Analysis Plan (Subtask 123) MampE will prepare a Quality Assurance Project Plan (QAPP) in accordance with EPA QAR-5 and the Region I EPA-New England Compendium of Quality Assurance Project Plan Requirements and Guidance (October 1999) The QAPP will describe the project objectives and organization functional activities and QAQC protocols to be used to achieve DQOs The sample collection methods sample locations and frequency sampling equipment and procedures and sample handling and analysis will also be included Whenever possible previously developed Sampling and Analysis Plans and QAPPs for this site will be utilized Based on discussions with the EPA TOPOs on November 8 2006 the QAPP will include a site plan showing proposed vertical profiling locations and a schematic cross-section to illustrate proposed groundwater sampling depths It is assumed that the draft QAPP will be completed within a high plus low LOE and will be based on the groundwater monitoring QAPP from Work Assignment 152 with worksheets and Standard Operating Procedures amplifiedmodified to incorporate protocols for vertical profiling sample collection and analysis including use of a field gas chromatograph (GC) It is assumed that the EPA OEME comments on the draft QAPP will require a low level of effort to be addressed including issuance of revisions to selected worksheets as necessary to address the comments

313 Project Management (Subtask 13) This subtask includes day-to-day management activities such as preparation of monthly progress reports project and staff scheduling monitoring and controlling costs and communications between EPA and MampE Based on the SOW the period-of-performance for this task order is from September 28 2006 through June 30 2008 for a total period of 21 months Of the 21 months 9 months are in Contract Year 1 and 12 months are in Contract Year 2

3131 Prepare Periodic Progress Reports (Subtask 131) It is assumed that 21 monthly progress reports and invoices will be prepared to document project cost and performance during the period-of-performance Nine reports are budgeted for Contract Year 1 and 12 are budgeted for Contract Year 2 The monthly progress reports will document cost and performance status by describing the project status by task anticipated schedules anticipated LOE usage for the following month and any problems or potential problems encountered or anticipated

In addition to monthly reporting the MampE task order manager will be responsible for the overall project coordination scheduling reporting and routine communication with EPA Activities anticipated typically include internal project meetings telephone discussions and electronic mail correspondence with the EPA TOPOs actions as the result of telephoneemail conversations preparing and editing correspondence monitoring and controlling labor hourscosts and actions schedule maintenance and approval staff scheduling project management and staff meetings problem resolution and routine administration for the period-of-performance

It is anticipated that the MampE task order manager will communicate several times weekly or as appropriate with the EPA TOPOs via telephone or e-mail For estimating purposes it is assumed that there will be a high degree of activity for the entire duration of the task order

314 Subcontract Procurement and Support Activities (Subtask 14) Several activities being conducted during field activities and during other tasks in order to complete activities in this SOW will require the services of outside subcontractors The efforts for procurement and management of the different subcontracts are included in this subtask while the estimated costs for the subcontracted work to be performed are included under the respective tasks for which the subcontracts are involved Technical efforts associated with scheduling field work coordination and technical interactions with subcontractors are budgeted under the appropriate field activity and analytical support subtasks

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3141 Identification and Procurement of Subcontractors (Subtask 141) Several subcontractors will be procured to support field work activities

bull Drilling for Monitoring Well Installation bull Vertical Profiling (to potentially include two subcontracts)

Analytical Services Investigation-Derived Waste (IDW) disposal

For the subcontractors cost estimates include development of specifications and technical SOWs bid review procurement of subcontractors and subcontract initiation activities In addition it is anticipated that half-day site visits will be attended by one MampE technical staff to meet with the drilling and vertical profiling bidders to evaluate the site and field conditions All quotations will be solicited on a competitive basis whenever possible

In addition to the above mentioned subcontracts DAS laboratories may be required to perform the 14-dioxane analyses for the vertical profiling sampling effort which is described in Section 3324 The OEME laboratory may perform the 14-dioxane analyses but DAS analyses are being budgeted in the event that the OEME laboratory does not have the capacity to perform the analyses when the vertical profiling event is performed For the cost estimate it is assumed that analytical specifications developed under the DAS Task Order and laboratories pre-qualified under the DAS Task Order will be used therefore no technical effort has been budgeted for procurement of the analytical laboratories

Drilling A drilling subcontract will be awarded to a firm to install 8 new monitoring wells When available to minimize costs MampE will utilize previously prepared Requests for Proposals (RFPs) to solicit this new subcontractor In total 23 hours have been budgeted to procure the drilling subcontractor which includes one cursory LOE to prepare the scope of work one cursory to prepare for and attend a site visit with the bidders and 3 hours to issue the subcontract

Vertical Profiling For vertical profiling to date MampE has identified only one subcontractor with the type of equipment recommended by EPA as necessary for this site because of the difficult drilling conditions (rocky soil) That subcontractor has told MampE that they have only one rig of that type MampE is attempting to identify other subcontractors with similar equipment so that competitive bids may be obtained and so that two rigs of similar type can be mobilized to the site If another local subcontractor with the EPA-recommended equipment cannot be located it may be necessary to prepare a sole-source procurement justification for the vertical profiling effort The LOE estimate for vertical profiling procurement is based on two separate procurements (so that two rigs may be utilized) The budget to procure the vertical profiling subcontractors includes one cursory LOE to identify more providers of a specialized vertical profiling rig one cursory LOE to prepare the scope of work (tailored to the specific equipment requirements) one cursory LOE to prepare for and conduct a site visit with the bidders and 6 hours to issue a subcontract to two separate bidders In addition 16 hours have been budgeted to prepare sole source justification memos for both of the subcontracts since it is likely that MampE will be unable to find multiple suppliers of such specialized equipment

Analytical Services Delivery of Analytical Services (DAS) laboratories may be utilized for analyses for 14-dioxane Laboratories pre-qualified under the DAS Work Assignment will be used No technical effort has been budgeted for procurement of the analytical laboratories subcontract management time or for the approval of the invoice Technical effort to prepare the DAS work order and hold a technical kickoff conference call with the laboratory is included under Task 52

Waste Disposal The waste disposal services being subcontracted will consist of removal from the site and disposal of IDW that will be generated during the field activities It is anticipated that the IDW will consist of contaminated personal protective equipment (PPE) decontamination

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fluids soils from the well installation and development and purge water from the groundwater wells and vertical profiling locations The IDW will be collected into 55-gallon drums which will be temporarily stored within the fenced-in site area It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil from the well installations and 2 drums of PPE for a total of 15 drums will be generated during field activities at the site To minimize costs MampE will utilize previously prepared Requests for Proposals to solicit this subcontractor One cursory LOE has been budgeted for preparation of the scope of work and to prepare required paperwork and coordinate with the waste disposal subcontractor In addition 3 hours have been budgeted to issue the subcontract to the selected bidder

For estimating purposes it is assumed that analytical data from environmental samples collected during the vertical profiling event will be sufficient to characterize the drum contents for bidding purposes and that only minimal additional testing of drum contents by the subcontractor will be needed prior to their removal It is also assumed that no more than 15 drums of waste will require disposal It is further assumed that the drum pick-up can be coordinated with field work activities and that removal of all drums can be completed within one half-day site visit (budgeted under Subtask 3210) to be scheduled after completion of both the vertical profiling effort and the well installation effort

3142 QA Program for Subcontractors (Subtask 142) MampE will provide QA oversight andor review of deliverables as appropriate for the subcontractors (drilling vertical profiling waste disposal analytical laboratory) being procured as part of this task order For the drilling vertical profiling and waste disposal subcontractors on-going monitoring of the services will be overseen during the field work by MampE technical field personnel in Subtask 324 For the analytical laboratory subcontract effort has been included for technical review of submittals (data electronic files etc) under Task 5 Therefore no budget is included under this subtask

3143 Subcontract Management (Subtask 143) The activities budgeted under this subtask include invoice review approval and payment for each of the subcontracts The cost estimate for invoice review assumes that each subcontractor will submit one invoice for a total of 5 invoices requiring review (one driller two vertical profiling subcontractors one DAS laboratory and one IDW disposal subcontractor) In total under 2 low LOE have been budgeted for this subtask

33 Data Acquisition (Task 3)

This task includes work efforts to plan and execute Pre-Design field activities for the possible implementation of In Situ Chemical Oxidation (ISCO) at the Ottati and Goss site The pre- and post-fieldwork LOE for each field task varies based on the number of people on a field team and the required post-fieldwork paper work Mobilization and demobilization efforts consist of tasks necessary to prepare and equip the field team for completing activities in the field and upon return to the office including preshyand post-office support of field work activities As part of this subtask the costs for mobilizationdemobilization efforts and support field efforts including the daily monitoring of field schedule and work completed and daily communications with field staff and EPA have been budgeted for each of the field activities

Mobilization efforts including pre-field work (office support) tasks consist of coordination and planningscheduling of daily field work and field events preparation of field-related paperwork (field log books sampling sheets air bills sample labels chain-of-custodies and traffic reports) and equipment and vehicle mobilization As part of each field activity a pre-field meeting will be held which typically includes attendance by the MampE Task Order Manager Project Hydrogeologist Project Chemist and relevant field personnel Time is also allotted for field personnel to read the HASP and QAPP In addition costs have been included to coordinate with the different subcontractors prior to commencement of field activities Demobilization efforts including equipment and vehicle demobilization maintenance of field equipment and post-field paperwork are also performed for each field activity

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The mobilization demobilization and pre- and post- fieldwork LOE for each task are different based on the type of task A higher amount of LOE for mobilization and de-mobilization has been budgeted for actual field work performed by MampE such as the vertical profiling sampling as opposed to oversight of well installation The pre- and post- fieldwork LOE also varies based on the number of people on a field team and the required post-fieldwork paper work An example of these includes LOE to read the QAPP and HASP would be greater for a larger field team and post-paperwork after well installation would include preparing and reviewing all of the boring logs

During all field activities each field team will maintain a field log book as well as other relevant log books typically used in the field The information to be recorded in the log book will be detailed in the QAPP and at a minimum will include information for each day on the site

Photographs will be taken to document site conditions and other pertinent observations and relevant photographs will be organized and compiled into photologs (labeled identified and dated) for submittal to EPA Any unusual events or deviations from project-specific documents will be recorded During field work it is anticipated that daily communications between field team personnel the MampE task order manager Project Hydrogeologist and Chemist and EPA will be maintained Technical effort has been budgeted for the respective field activities to support this necessary and frequent communication

A brief summary of the LOE has been included with the specific task Field days are assumed to be twelve (12) hours in length unless otherwise specified Each field task also includes LOE for pre- and post- field work activities

331 Mobilization and Demobilization of Field Activities Subtask 31) This subtask includes LOE and other direct costs (ODCs) to perform the following field activities MobilizationDemobilization of temporary facilities and Site Restoration The facilities include laboratoryfield office trailer steps laboratory equipment (field gas chromatograph and supporting equipment) and portable toilet Power also needs to be restored to the on-site trailer Mobilization activities are budgeted for Contract Year 1 and demobilization activities are budgeted for Contract Year 2

3311 Identify Field Support Equipment Supplies and Facilities Subtask 311) As part of the work identified in Subtask 332 MampE has included all ODCs for the necessary equipment to mobilize a field laboratory within the on-site MampE trailer currently present at the site and to coordinate with the power company to oversee restoration of power to the trailer A low LOE in Contract Year 1 has been allocated for identifying field support equipment supplies and facilities

3312 Mobilization (Subtask 312) A cursory LOE is budgeted for coordination with the power company including a half-day site visit (4 hours by one person) to oversee restoration of power In addition two half-day site visits (4 hours each by one person) are budgeted to oversee mobilization of the portable toilet and the trailer steps to the site Site visits will be combined whenever possible to reduce costs for mobilization The mobilization budget is included in Contract Year 1

3313 Demobilization (Subtask 313) The demobilization of the site including all temporary facilities and utilities will occur when all field tasks have been completed It is anticipated that it will take one (1) MampE staff member two 8-hour field days (including travel tofrom the site) to oversee the removal of all temporary facilities including the site trailer portable toilet and disconnection of power from the trailer The demobilization budget is included in Contract Year 2

332 Field Investigation (Subtask 32) As per MampEs scoping meeting with EPA on November 3 2006 this task involves vertical profiling in two areas of the site with collection of groundwater and soil samples and the installation of eight new monitoring wells for future use in monitoring a planned pilot-scale treatability test of the ISCO technology Other field tasks identifed in the EPA SOW are being deferred as described in the scoping meeting notes (see Attachment 1)

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The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

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been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

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member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

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3141 Identification and Procurement of Subcontractors (Subtask 141) Several subcontractors will be procured to support field work activities

bull Drilling for Monitoring Well Installation bull Vertical Profiling (to potentially include two subcontracts)

Analytical Services Investigation-Derived Waste (IDW) disposal

For the subcontractors cost estimates include development of specifications and technical SOWs bid review procurement of subcontractors and subcontract initiation activities In addition it is anticipated that half-day site visits will be attended by one MampE technical staff to meet with the drilling and vertical profiling bidders to evaluate the site and field conditions All quotations will be solicited on a competitive basis whenever possible

In addition to the above mentioned subcontracts DAS laboratories may be required to perform the 14-dioxane analyses for the vertical profiling sampling effort which is described in Section 3324 The OEME laboratory may perform the 14-dioxane analyses but DAS analyses are being budgeted in the event that the OEME laboratory does not have the capacity to perform the analyses when the vertical profiling event is performed For the cost estimate it is assumed that analytical specifications developed under the DAS Task Order and laboratories pre-qualified under the DAS Task Order will be used therefore no technical effort has been budgeted for procurement of the analytical laboratories

Drilling A drilling subcontract will be awarded to a firm to install 8 new monitoring wells When available to minimize costs MampE will utilize previously prepared Requests for Proposals (RFPs) to solicit this new subcontractor In total 23 hours have been budgeted to procure the drilling subcontractor which includes one cursory LOE to prepare the scope of work one cursory to prepare for and attend a site visit with the bidders and 3 hours to issue the subcontract

Vertical Profiling For vertical profiling to date MampE has identified only one subcontractor with the type of equipment recommended by EPA as necessary for this site because of the difficult drilling conditions (rocky soil) That subcontractor has told MampE that they have only one rig of that type MampE is attempting to identify other subcontractors with similar equipment so that competitive bids may be obtained and so that two rigs of similar type can be mobilized to the site If another local subcontractor with the EPA-recommended equipment cannot be located it may be necessary to prepare a sole-source procurement justification for the vertical profiling effort The LOE estimate for vertical profiling procurement is based on two separate procurements (so that two rigs may be utilized) The budget to procure the vertical profiling subcontractors includes one cursory LOE to identify more providers of a specialized vertical profiling rig one cursory LOE to prepare the scope of work (tailored to the specific equipment requirements) one cursory LOE to prepare for and conduct a site visit with the bidders and 6 hours to issue a subcontract to two separate bidders In addition 16 hours have been budgeted to prepare sole source justification memos for both of the subcontracts since it is likely that MampE will be unable to find multiple suppliers of such specialized equipment

Analytical Services Delivery of Analytical Services (DAS) laboratories may be utilized for analyses for 14-dioxane Laboratories pre-qualified under the DAS Work Assignment will be used No technical effort has been budgeted for procurement of the analytical laboratories subcontract management time or for the approval of the invoice Technical effort to prepare the DAS work order and hold a technical kickoff conference call with the laboratory is included under Task 52

Waste Disposal The waste disposal services being subcontracted will consist of removal from the site and disposal of IDW that will be generated during the field activities It is anticipated that the IDW will consist of contaminated personal protective equipment (PPE) decontamination

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fluids soils from the well installation and development and purge water from the groundwater wells and vertical profiling locations The IDW will be collected into 55-gallon drums which will be temporarily stored within the fenced-in site area It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil from the well installations and 2 drums of PPE for a total of 15 drums will be generated during field activities at the site To minimize costs MampE will utilize previously prepared Requests for Proposals to solicit this subcontractor One cursory LOE has been budgeted for preparation of the scope of work and to prepare required paperwork and coordinate with the waste disposal subcontractor In addition 3 hours have been budgeted to issue the subcontract to the selected bidder

For estimating purposes it is assumed that analytical data from environmental samples collected during the vertical profiling event will be sufficient to characterize the drum contents for bidding purposes and that only minimal additional testing of drum contents by the subcontractor will be needed prior to their removal It is also assumed that no more than 15 drums of waste will require disposal It is further assumed that the drum pick-up can be coordinated with field work activities and that removal of all drums can be completed within one half-day site visit (budgeted under Subtask 3210) to be scheduled after completion of both the vertical profiling effort and the well installation effort

3142 QA Program for Subcontractors (Subtask 142) MampE will provide QA oversight andor review of deliverables as appropriate for the subcontractors (drilling vertical profiling waste disposal analytical laboratory) being procured as part of this task order For the drilling vertical profiling and waste disposal subcontractors on-going monitoring of the services will be overseen during the field work by MampE technical field personnel in Subtask 324 For the analytical laboratory subcontract effort has been included for technical review of submittals (data electronic files etc) under Task 5 Therefore no budget is included under this subtask

3143 Subcontract Management (Subtask 143) The activities budgeted under this subtask include invoice review approval and payment for each of the subcontracts The cost estimate for invoice review assumes that each subcontractor will submit one invoice for a total of 5 invoices requiring review (one driller two vertical profiling subcontractors one DAS laboratory and one IDW disposal subcontractor) In total under 2 low LOE have been budgeted for this subtask

33 Data Acquisition (Task 3)

This task includes work efforts to plan and execute Pre-Design field activities for the possible implementation of In Situ Chemical Oxidation (ISCO) at the Ottati and Goss site The pre- and post-fieldwork LOE for each field task varies based on the number of people on a field team and the required post-fieldwork paper work Mobilization and demobilization efforts consist of tasks necessary to prepare and equip the field team for completing activities in the field and upon return to the office including preshyand post-office support of field work activities As part of this subtask the costs for mobilizationdemobilization efforts and support field efforts including the daily monitoring of field schedule and work completed and daily communications with field staff and EPA have been budgeted for each of the field activities

Mobilization efforts including pre-field work (office support) tasks consist of coordination and planningscheduling of daily field work and field events preparation of field-related paperwork (field log books sampling sheets air bills sample labels chain-of-custodies and traffic reports) and equipment and vehicle mobilization As part of each field activity a pre-field meeting will be held which typically includes attendance by the MampE Task Order Manager Project Hydrogeologist Project Chemist and relevant field personnel Time is also allotted for field personnel to read the HASP and QAPP In addition costs have been included to coordinate with the different subcontractors prior to commencement of field activities Demobilization efforts including equipment and vehicle demobilization maintenance of field equipment and post-field paperwork are also performed for each field activity

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The mobilization demobilization and pre- and post- fieldwork LOE for each task are different based on the type of task A higher amount of LOE for mobilization and de-mobilization has been budgeted for actual field work performed by MampE such as the vertical profiling sampling as opposed to oversight of well installation The pre- and post- fieldwork LOE also varies based on the number of people on a field team and the required post-fieldwork paper work An example of these includes LOE to read the QAPP and HASP would be greater for a larger field team and post-paperwork after well installation would include preparing and reviewing all of the boring logs

During all field activities each field team will maintain a field log book as well as other relevant log books typically used in the field The information to be recorded in the log book will be detailed in the QAPP and at a minimum will include information for each day on the site

Photographs will be taken to document site conditions and other pertinent observations and relevant photographs will be organized and compiled into photologs (labeled identified and dated) for submittal to EPA Any unusual events or deviations from project-specific documents will be recorded During field work it is anticipated that daily communications between field team personnel the MampE task order manager Project Hydrogeologist and Chemist and EPA will be maintained Technical effort has been budgeted for the respective field activities to support this necessary and frequent communication

A brief summary of the LOE has been included with the specific task Field days are assumed to be twelve (12) hours in length unless otherwise specified Each field task also includes LOE for pre- and post- field work activities

331 Mobilization and Demobilization of Field Activities Subtask 31) This subtask includes LOE and other direct costs (ODCs) to perform the following field activities MobilizationDemobilization of temporary facilities and Site Restoration The facilities include laboratoryfield office trailer steps laboratory equipment (field gas chromatograph and supporting equipment) and portable toilet Power also needs to be restored to the on-site trailer Mobilization activities are budgeted for Contract Year 1 and demobilization activities are budgeted for Contract Year 2

3311 Identify Field Support Equipment Supplies and Facilities Subtask 311) As part of the work identified in Subtask 332 MampE has included all ODCs for the necessary equipment to mobilize a field laboratory within the on-site MampE trailer currently present at the site and to coordinate with the power company to oversee restoration of power to the trailer A low LOE in Contract Year 1 has been allocated for identifying field support equipment supplies and facilities

3312 Mobilization (Subtask 312) A cursory LOE is budgeted for coordination with the power company including a half-day site visit (4 hours by one person) to oversee restoration of power In addition two half-day site visits (4 hours each by one person) are budgeted to oversee mobilization of the portable toilet and the trailer steps to the site Site visits will be combined whenever possible to reduce costs for mobilization The mobilization budget is included in Contract Year 1

3313 Demobilization (Subtask 313) The demobilization of the site including all temporary facilities and utilities will occur when all field tasks have been completed It is anticipated that it will take one (1) MampE staff member two 8-hour field days (including travel tofrom the site) to oversee the removal of all temporary facilities including the site trailer portable toilet and disconnection of power from the trailer The demobilization budget is included in Contract Year 2

332 Field Investigation (Subtask 32) As per MampEs scoping meeting with EPA on November 3 2006 this task involves vertical profiling in two areas of the site with collection of groundwater and soil samples and the installation of eight new monitoring wells for future use in monitoring a planned pilot-scale treatability test of the ISCO technology Other field tasks identifed in the EPA SOW are being deferred as described in the scoping meeting notes (see Attachment 1)

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The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

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been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

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member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

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fluids soils from the well installation and development and purge water from the groundwater wells and vertical profiling locations The IDW will be collected into 55-gallon drums which will be temporarily stored within the fenced-in site area It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil from the well installations and 2 drums of PPE for a total of 15 drums will be generated during field activities at the site To minimize costs MampE will utilize previously prepared Requests for Proposals to solicit this subcontractor One cursory LOE has been budgeted for preparation of the scope of work and to prepare required paperwork and coordinate with the waste disposal subcontractor In addition 3 hours have been budgeted to issue the subcontract to the selected bidder

For estimating purposes it is assumed that analytical data from environmental samples collected during the vertical profiling event will be sufficient to characterize the drum contents for bidding purposes and that only minimal additional testing of drum contents by the subcontractor will be needed prior to their removal It is also assumed that no more than 15 drums of waste will require disposal It is further assumed that the drum pick-up can be coordinated with field work activities and that removal of all drums can be completed within one half-day site visit (budgeted under Subtask 3210) to be scheduled after completion of both the vertical profiling effort and the well installation effort

3142 QA Program for Subcontractors (Subtask 142) MampE will provide QA oversight andor review of deliverables as appropriate for the subcontractors (drilling vertical profiling waste disposal analytical laboratory) being procured as part of this task order For the drilling vertical profiling and waste disposal subcontractors on-going monitoring of the services will be overseen during the field work by MampE technical field personnel in Subtask 324 For the analytical laboratory subcontract effort has been included for technical review of submittals (data electronic files etc) under Task 5 Therefore no budget is included under this subtask

3143 Subcontract Management (Subtask 143) The activities budgeted under this subtask include invoice review approval and payment for each of the subcontracts The cost estimate for invoice review assumes that each subcontractor will submit one invoice for a total of 5 invoices requiring review (one driller two vertical profiling subcontractors one DAS laboratory and one IDW disposal subcontractor) In total under 2 low LOE have been budgeted for this subtask

33 Data Acquisition (Task 3)

This task includes work efforts to plan and execute Pre-Design field activities for the possible implementation of In Situ Chemical Oxidation (ISCO) at the Ottati and Goss site The pre- and post-fieldwork LOE for each field task varies based on the number of people on a field team and the required post-fieldwork paper work Mobilization and demobilization efforts consist of tasks necessary to prepare and equip the field team for completing activities in the field and upon return to the office including preshyand post-office support of field work activities As part of this subtask the costs for mobilizationdemobilization efforts and support field efforts including the daily monitoring of field schedule and work completed and daily communications with field staff and EPA have been budgeted for each of the field activities

Mobilization efforts including pre-field work (office support) tasks consist of coordination and planningscheduling of daily field work and field events preparation of field-related paperwork (field log books sampling sheets air bills sample labels chain-of-custodies and traffic reports) and equipment and vehicle mobilization As part of each field activity a pre-field meeting will be held which typically includes attendance by the MampE Task Order Manager Project Hydrogeologist Project Chemist and relevant field personnel Time is also allotted for field personnel to read the HASP and QAPP In addition costs have been included to coordinate with the different subcontractors prior to commencement of field activities Demobilization efforts including equipment and vehicle demobilization maintenance of field equipment and post-field paperwork are also performed for each field activity

TO002-TOPCE-112006-100 9

The mobilization demobilization and pre- and post- fieldwork LOE for each task are different based on the type of task A higher amount of LOE for mobilization and de-mobilization has been budgeted for actual field work performed by MampE such as the vertical profiling sampling as opposed to oversight of well installation The pre- and post- fieldwork LOE also varies based on the number of people on a field team and the required post-fieldwork paper work An example of these includes LOE to read the QAPP and HASP would be greater for a larger field team and post-paperwork after well installation would include preparing and reviewing all of the boring logs

During all field activities each field team will maintain a field log book as well as other relevant log books typically used in the field The information to be recorded in the log book will be detailed in the QAPP and at a minimum will include information for each day on the site

Photographs will be taken to document site conditions and other pertinent observations and relevant photographs will be organized and compiled into photologs (labeled identified and dated) for submittal to EPA Any unusual events or deviations from project-specific documents will be recorded During field work it is anticipated that daily communications between field team personnel the MampE task order manager Project Hydrogeologist and Chemist and EPA will be maintained Technical effort has been budgeted for the respective field activities to support this necessary and frequent communication

A brief summary of the LOE has been included with the specific task Field days are assumed to be twelve (12) hours in length unless otherwise specified Each field task also includes LOE for pre- and post- field work activities

331 Mobilization and Demobilization of Field Activities Subtask 31) This subtask includes LOE and other direct costs (ODCs) to perform the following field activities MobilizationDemobilization of temporary facilities and Site Restoration The facilities include laboratoryfield office trailer steps laboratory equipment (field gas chromatograph and supporting equipment) and portable toilet Power also needs to be restored to the on-site trailer Mobilization activities are budgeted for Contract Year 1 and demobilization activities are budgeted for Contract Year 2

3311 Identify Field Support Equipment Supplies and Facilities Subtask 311) As part of the work identified in Subtask 332 MampE has included all ODCs for the necessary equipment to mobilize a field laboratory within the on-site MampE trailer currently present at the site and to coordinate with the power company to oversee restoration of power to the trailer A low LOE in Contract Year 1 has been allocated for identifying field support equipment supplies and facilities

3312 Mobilization (Subtask 312) A cursory LOE is budgeted for coordination with the power company including a half-day site visit (4 hours by one person) to oversee restoration of power In addition two half-day site visits (4 hours each by one person) are budgeted to oversee mobilization of the portable toilet and the trailer steps to the site Site visits will be combined whenever possible to reduce costs for mobilization The mobilization budget is included in Contract Year 1

3313 Demobilization (Subtask 313) The demobilization of the site including all temporary facilities and utilities will occur when all field tasks have been completed It is anticipated that it will take one (1) MampE staff member two 8-hour field days (including travel tofrom the site) to oversee the removal of all temporary facilities including the site trailer portable toilet and disconnection of power from the trailer The demobilization budget is included in Contract Year 2

332 Field Investigation (Subtask 32) As per MampEs scoping meeting with EPA on November 3 2006 this task involves vertical profiling in two areas of the site with collection of groundwater and soil samples and the installation of eight new monitoring wells for future use in monitoring a planned pilot-scale treatability test of the ISCO technology Other field tasks identifed in the EPA SOW are being deferred as described in the scoping meeting notes (see Attachment 1)

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The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

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been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

TO002-TOPCE-112006-100 12

member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

TO002-TOPCE-112006-100 13

The mobilization demobilization and pre- and post- fieldwork LOE for each task are different based on the type of task A higher amount of LOE for mobilization and de-mobilization has been budgeted for actual field work performed by MampE such as the vertical profiling sampling as opposed to oversight of well installation The pre- and post- fieldwork LOE also varies based on the number of people on a field team and the required post-fieldwork paper work An example of these includes LOE to read the QAPP and HASP would be greater for a larger field team and post-paperwork after well installation would include preparing and reviewing all of the boring logs

During all field activities each field team will maintain a field log book as well as other relevant log books typically used in the field The information to be recorded in the log book will be detailed in the QAPP and at a minimum will include information for each day on the site

Photographs will be taken to document site conditions and other pertinent observations and relevant photographs will be organized and compiled into photologs (labeled identified and dated) for submittal to EPA Any unusual events or deviations from project-specific documents will be recorded During field work it is anticipated that daily communications between field team personnel the MampE task order manager Project Hydrogeologist and Chemist and EPA will be maintained Technical effort has been budgeted for the respective field activities to support this necessary and frequent communication

A brief summary of the LOE has been included with the specific task Field days are assumed to be twelve (12) hours in length unless otherwise specified Each field task also includes LOE for pre- and post- field work activities

331 Mobilization and Demobilization of Field Activities Subtask 31) This subtask includes LOE and other direct costs (ODCs) to perform the following field activities MobilizationDemobilization of temporary facilities and Site Restoration The facilities include laboratoryfield office trailer steps laboratory equipment (field gas chromatograph and supporting equipment) and portable toilet Power also needs to be restored to the on-site trailer Mobilization activities are budgeted for Contract Year 1 and demobilization activities are budgeted for Contract Year 2

3311 Identify Field Support Equipment Supplies and Facilities Subtask 311) As part of the work identified in Subtask 332 MampE has included all ODCs for the necessary equipment to mobilize a field laboratory within the on-site MampE trailer currently present at the site and to coordinate with the power company to oversee restoration of power to the trailer A low LOE in Contract Year 1 has been allocated for identifying field support equipment supplies and facilities

3312 Mobilization (Subtask 312) A cursory LOE is budgeted for coordination with the power company including a half-day site visit (4 hours by one person) to oversee restoration of power In addition two half-day site visits (4 hours each by one person) are budgeted to oversee mobilization of the portable toilet and the trailer steps to the site Site visits will be combined whenever possible to reduce costs for mobilization The mobilization budget is included in Contract Year 1

3313 Demobilization (Subtask 313) The demobilization of the site including all temporary facilities and utilities will occur when all field tasks have been completed It is anticipated that it will take one (1) MampE staff member two 8-hour field days (including travel tofrom the site) to oversee the removal of all temporary facilities including the site trailer portable toilet and disconnection of power from the trailer The demobilization budget is included in Contract Year 2

332 Field Investigation (Subtask 32) As per MampEs scoping meeting with EPA on November 3 2006 this task involves vertical profiling in two areas of the site with collection of groundwater and soil samples and the installation of eight new monitoring wells for future use in monitoring a planned pilot-scale treatability test of the ISCO technology Other field tasks identifed in the EPA SOW are being deferred as described in the scoping meeting notes (see Attachment 1)

TO002-TOPCE-112006-100 10

The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

TO002-TOPCE-112006-100 11

been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

TO002-TOPCE-112006-100 12

member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

TO002-TOPCE-112006-100 13

The field work efforts associated with the various sampling field activities are described in the following sections and are based on typical average weather and field conditions that are anticipated at the site as well as MampE field experience at other sites The field equipment including a field trailer and supply needs anticipated for the different field activities described below are detailed in Section 70 and the estimated costs are included in the budget for this subtask

A field work schedule will be provided to EPA at least two weeks in advance of initiation of field activities at the site The schedule will indicate the anticipated field dates with the corresponding locations scheduled to be installed monitored or sampled If circumstances such as site or weather conditions affect the field schedule EPA will be notified in a timely manner

3321 Site Reconnaissance Subtask 321) This task is not budgeted because MampE has previously compiled site survey information under RAC Work Assignment 152 The new monitoring wells to be installed under Task 324(a) will eventually need to be surveyed Because injection wells will likely be installed during a future pilot test and may also need to be surveyed MampE is assuming that a future site survey will be planned and has not included budget in this TOPCE to survey the 8 new wells since it will be more cost effective for EPA to combine any needed survey activities into one subcontract

3322 Conduct Geological Investigations (Soils and Sediments) Subtask 322 [2]) This subtask of the EPA SOW is intended for collection of soil samples for bench-scale Total Oxidant Demand testing by vendors of the ISCO technology As per the scoping meeting with EPA on November 3 2006 the bench-scale testing under Task 7 is being deferred and is not budgeted in this TOPCE Therefore this subtask is not used Collection of soil samples during monitoring well installation is budgeted under Subtask 324 (1) (a) discussed below

3324 Conduct HydrogeologicalGroundwater Investigations Subtask 324) As per MampEs meeting with EPA on November 3 2006 the subtasks budgeted under this TOPCE are as follows Install Monitoring Wells [324(1 )(a)] Perform Hydraulic Tests [324 (4)] and Vertical Profiling [324 (f)] Subtasks related to possible future treatability tests and 25 well groundwater monitoring rounds have not been budgeted in accordance with the November 3 2006 scoping meeting (see Attachment 1 for the meeting notes)

Install Monitoring Wells [Subtask 324(1 )(a)] MampE will install 8 monitoring wells at the site It is planned that the wells will be installed in the Spring of 2007 (after the vertical profiling effort) and therefore this subtask is budgeted in Contract Year 1 The budget for installation of the wells is based on a maximum depth for each well of 30 feet below ground surface (bgs) The purpose of the monitoring wells is to provide wells located in the proposed areas for future treatability testing that will be used to monitor the radius of influence of the oxidant(s) to be injected into the areas The locations of the wells will be selected in consultation with the EPA TOPOs based on the results of the vertical profiling effort to be performed under Subtask 324(f) and the EPAs future decisions regarding the areas of the site to undergo pilot-scale treatability testing

As part of the monitoring well installation soil samples will be continuously collected every two feet from the ground surface to the termination depth (estimated to be 30 feet bgs) during the monitoring well installation for geologic logging purposes It is envisioned that soil samples for bench-scale testing (Total Oxidant Demand tests) will also be collected during installation of these wells should EPA issue a Task Order Modification for bench-scale testing in early 2007 However such bench-scale testing is not budgeted in this TOPCE in accordance with the November 3 2006 scoping meeting

Soil samples will be collected using split spoons or similar device continuously from the ground surface to the target depth and will be described and characterized by an MampE Staff member and screened with a PID It is anticipated that the monitoring well installation will take five (5) 12-hour days with one (1) MampE staff member including travel to and from the site A cursory LOE has

TO002-TOPCE-112006-100 11

been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

TO002-TOPCE-112006-100 12

member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

TO002-TOPCE-112006-100 13

been allocated for pre-field coordination and equipment mobilization and 16 LOE (2 hours per well location) is budgeted for the preparation of boring logs and well installation logs

It is assumed that the well installation will occur in non-winter weather conditions The newly installed monitoring wells will be developed using pump and surge techniques A low plus cursory LOE is budgeted for well development including pre-field preparation and budget for two MampE staff members (one 12-hour day for each of two people including travel) to perform development of the 8 new monitoring wells

Excess soil cuttings and well development water will be stored on site within the fenced area in drums and disposed off site at the completion of field work as described under Subtask 3210 shyDispose of Investigation-Derived Waste

Perform Hydraulic Tests (Subtask 324 [4]) This subtask is budgeted for Contract Year 1 and includes performance of slug tests in the 8 new monitoring wells to be installed under Subtask 324(1 )(a) A low plus cursory LOE is budgeted for the slug tests including pre-field preparation and budget for actual performance of the tests on-site by two MampE staff members (one 12-hour day for each of two people including travel) It is assumed that the slug tests will be performed under conditions of minimal precipitation and non winter weather conditions

Vertical Profiling (Subtask 324 [f] It is planned that the vertical profiling will be performed in the Spring of 2007 and therefore this subtask is budgeted in Contract Year 1 The EPA SOW (attached Figure 1 of the SOW) identified two portions of the site for vertical profiling using a total of 65 probe locations 40 locations in the GZ-9 to B-4 area (northern plume area) and 25 locations in the center of the site (GZ-11 area) At the November 3 2006 scoping meeting the EPA TOPOs eliminated vertical profiling for the northern plume area because of property access issues and it was decided that the future Treatability Study Area (the area near well ME-4 and shown on Figure 1 of the SOW) should be profiled to obtain data to support future pilot-scale treatability tests It was further agreed during the November 3 2006 scoping meeting (also documented in Attachment 1) that a total of 60 probe locations (instead of the 65 identified in the SOW) would be budgeted with some locations established in advance of the field effort and others to be located in the field based on results obtained for the fixed locations Adjustment of locations will be possible because groundwater samples will be analyzed on site using a field gas chromatograph on the same day they are collected These decisions are documented in the scoping meeting notes (see Attachment 1)

As discussed during the November 8 2006 conference call of the 60 probes budgeted 30 are planned for the ME-4 area and 30 are planned for the GZ-11 area Of the 30 probe locations per area 20 locations will be for groundwater sample collection (with 5 samples per location) 5 locations will be for soil sample collection for VOC analysis (with 2 samples per location) and 5 locations (assumed to be groundwater sample collection locations with 5 samples per location) will be reserved for field team judgment based on the field GC data Two vertical profiling rigs will be budgeted so that the work can be completed within 15 field days (3 weeks) and so that the quantity of samples collected will make the best use of the field GC sample throughput (estimated to be 25 samples per day based on MampE past experience at this site)

Groundwater samples will be collected every 5 feet from the water table until refusal as stated in the SOW estimated to be 5 samples per location Groundwater VOC samples will be analyzed by field GC and 10 of the groundwater samples will be selected for off-site laboratory confirmation analysis for VOCs (either by RAS or the OEME fixed laboratory - see Task 4) A total of 50 groundwater samples will also be collected for 14-dioxane analysis (inclusive of field QC) as discussed further under Task 4 (Section 34)

The MampE level of effort for vertical profiling is based on the following assumptions two rigs each operating for 15 12-hour long field days (including travel) one MampE staff member overseeing each rig and collecting groundwater and soil samples as described above one MampE staff

TO002-TOPCE-112006-100 12

member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

TO002-TOPCE-112006-100 13

member operating a field GC to be located within the MampE laboratory trailer already on site and one MampE staff member for packaging and shipping samples for off-site laboratory analysis three days of every 5-day field week (most likely Tuesday Thursday and Friday of each week) The MampE level of effort also includes a medium LOE for pre-field planning including preparation of the equipment list mobilization of supplies and equipment pre-labeling of bottles assignment of sample IDs and set up of Forms 2 Lite software a pre-field meeting and review of the HASP and QAPP by each field team member

It is noted that the EPA TOPOs have requested the services of the OEME mobile laboratory for the field GC analyses during the vertical profiling effort scheduled for late March-early April 2007 As discussed during the November 3 2006 and November 8 2006 meetings MampE has budgeted for an MampE staff member to perform the field GC analyses and the ODCs budget includes rental of the field GC and purchase of supplies related to its operation in the event that the OEME laboratory is not available when the field event is firmly scheduled

A summary of the estimated sample quantities and analyses for the groundwater and soil sampling from the vertical profiling effort is presented in Table 3-1 and discussed further under Task 4 (Section 34)

33210 Dispose of Investigation-Derived Waste (Subtask 3210) In accordance with local State and Federal Regulations MampE will characterize and dispose of investigation-derived waste generated as part of activities at the site It is anticipated that the IDWs will consist of contaminated personal protective equipment (PPE) decontamination fluids development and purge water from the monitoring wells and vertical profiling locations and soil cuttings from installation of monitoring wells It is estimated that 8 drums of developmentpurge water and decontamination fluids water 5 drums of soil cuttings and 2 drums of contaminated PPE will be generated during field activities at the site It is assumed that the drum pick-up will take place once after completion of all field work activities for vertical profilingwell installation and that removal of all drums can be completed within one day One 6-hour trip for one MampE technical field personnel to oversee drum removal activities has been budgeted It is further assumed that the IDW will be removed from the site in late Spring 2007 and therefore the effort is budgeted for Contract Year 1

TO002-TOPCE-112006-100 13

TABLE 3-1 SAMPLE ANALYSES AND QUANTITIES FOR OTTATI amp GOSS

NOTES

(1) Assumes that the two areas will be investigated simultaneously with two rigs on site for 3 weeks (15 field days)

Each rig is assumed to complete two locations each field day (and therefore 30 locations in 15 days) for a total of 30 locations per area

(2) A subset of locationsdepths will be selected to collect samples for 14-dioxane analysis 15 samples per area (total of 30 samples) is included for budgeting and to keep the total number (inclusive of field QC) below 50 Selection of different depths to obtain some vertical characterization is proposed rather than one sample in every location regardless of depth

The conceptual site model is that 14-dioxane is more concentrated in the pore water of less permeable zones because it is not quickly flushed out by

groundwater flow through the zone The field effort will be designed to test this model and evaluate possible locationsdepths for targeted oxidant injections

(3) Soil Sample selection These will be selected based on stratigraphy and field GC results for GW samples The purpose will be to attempt to characterize the most highly contaminated areas with respect to saturated soil for use by vendors in estimating oxidant demand and to help predict the duration of ISCO treatment that would likely be needed (at an FS level of detail for ROD amendment use) No soil sampling for 14-dioxane is proposed because it is assumed to be associated with the pore water due to its high solubility Soil samplinganalysis is proposed for VOCs only

Total

Number

Of

SDGs

Vertical Profiling ME-4 Area (1)

20 Water Probe Locations 5 GWsamples per location (2

5 Soil Probe Locations 2 soil samples per location (3)

5 extra water probe locations to be selected based on field GC results 5 GW samples per location

Vertical Profiling GZ-11 Area (1)

20 Water Probe Locations 5 GW samples per location (

5 Soil Probe Locations 2 soil samples per location (3)

5 extra water probe locations to be selected based on field GC results 5 GW samples per location

Subtotal Field Samples

Fie d Collected QC Samples Trip Blanks (ship 3 times per week) Equipment Blanks Field Duplicates Laboratory Duplicates PE Samples Matrix Spike Matrix Spike Duplicate

GRAND TOTAL

VALIDATION TIER LEVEL

TURN AROUND TIME Vertical Profiling

DAS

14-Dioxane

(GW)

15

0

0

15

0

0

30

9 2 2 0 2 2 2

49

Tier I

21 Day

RAS RAS

VOCs (Soil) VOCs (GW)

(10 confirmation of field GC)

0 10

10 0

0 3

0 10

10 0

0 3

20 26

2 9 1 2 1 2 0 0 1 2 1 2 1 2

27 45

Tier I Tierl

21 Day 21 Day

Field Analyses

Field GC

VOCs Soil

0

0

0

0

0

0

0

0 0 0 0 0 0 0

0

NA

NA

Field GC

VOCs GW

100

0

25

100

0

25

250

15 0 13 13 0 0 0

291

NA

NA

8

34 Sample Analysis (Task 4)

This task includes the estimated costs for screening-type and CLP-like laboratory sample analysis Table 3-1 summarizes the number of samples to be collected the number and types of quality control samples to be submitted and the assumed type of analysis for this TOPCE

341 Screening-Type Laboratory Sample Analysis (Subtask 41) Screening-type laboratory sample analysis by field GC is included within this subtask

3412 Analyze Groundwater Samples (Subtask 412) This subtask includes field GC analysis of groundwater samples A total of 291 groundwater samples (including field QC samples) for VOC analysis by field GC have been estimated (see Table 3-1) Costs for field GC rental obtaining and purchasing standard solutions for the field GC and LOE for performing field GC analyses has been included in Subtask 324 (f) Therefore no budget has been included under this subtask

3414 Analyze Soil Samples (Subtask 414) During the November 8 2006 conference call it was decided upon that VOCs in soil would be analyzed either by EPAs OEME laboratory or a RAS laboratory Therefore no budget has been included under this subtask

342 CLP-Type Laboratory Sample Analysis or FAST AC (Subtask 42) CLP-type laboratory sample analysis is included within this subtask MampE will utilize the FAST AC system to determine the most cost effective method of off-site sample analysis

3412 Analyze Groundwater Samples (Subtask 422) This subtask includes the estimated costs for providing DAS analytical laboratory services for the vertical profiling effort to analyze groundwater samples for 14-dioxane A total of 50 samples for 14-dioxane analysis are budgeted inclusive of field QC samples (see Table 3-1) The analytical costs developed under the DAS work assignment have been used to estimate the DAS analytical costs assuming a 21shyday turn-around time for laboratory data report delivery The cost estimate is based on payment of the DAS laboratory in Contract Year 1 since the sample collection is assumed to take place in the early Spring of 2007

For the estimated 45 VOCs in groundwater confirmation samples (including QC samples) analysis by a RAS laboratory or the OEME fixed laboratory has been assumed Therefore analytical laboratory costs for analyzing VOCs in groundwater confirmation samples have not been budgeted These samples will be collected and analyzed to confirm field GC results Budget is included under Task 5 for MampE to arrange for RAS laboratories if necessary and to coordinate with the RAS laboratories or OEME fixed laboratory as necessary for the groundwater VOC analyses

It is noted that the EPA TOPOs have requested that the OEME fixed laboratory perform the 14shydioxane and VOC sample analyses but as directed by EPA MampE has budgeted for a DAS laboratory for the 14-dioxane analyses and coordination for a RAS laboratory for the VOC analyses in case there are capacity issues at the OEME laboratory that prevent the analyses from being performed there once the vertical profiling event is firmly scheduled

Analyze Soil Samples (Subtask 414) An estimated 27 VOCs in soil samples (including QC samples) will be analyzed either by EPAs OEME laboratory or a RAS laboratory Therefore no costs have been included under this subtask for the analysis of VOCs in soil Budget is included under Task 5 for MampE to arrange for RAS laboratories if necessary and to coordinate with the RAS laboratories or OEME fixed laboratory as necessary for the soil VOC analyses

TO002-TOPCE-112006-100 15

35 Analytical Support and Data Validation (Task 5)

MampE will collect prepare and ship environmental samples using analytical methods and data validation procedures which provide data which are of definable quality and defensible Sampling will be performed in accordance with the QAPP and the clarifications summarized in the meeting notes from the November 3 2006 scoping meeting and the subequent conference call held with the TOPOs on November 8 2006 (see Attachment 1 for meeting notes) Efforts under Task 5 are budgeted for Contract Year 1 under the assumption that sampling takes place in early Spring 2007 such that all data can be received and validated by MampE before the end of June 2007

351 Prepare and Ship Environmental Samples (Subtask 51) All samples collected during field activities will be collected preserved and packaged following procedures to be specified in MampEs QAPP As specified by standard chain-of-custody (CoC) procedures the samples will be managed and tracked from collection through shipment via an overnight carrier until laboratory receipt and custody Original Chain-of-Custody (CoC) forms completed in the field will be kept on file at MampE for this work assignment

3511 Groundwater Sampling (Subtask 511) Consistent with the November 3 2006 scoping meeting notes the groundwater sampling will consist of collecting groundwater samples during the vertical profiling effort Samples for off-site laboratory analysis will be collected for analysis of 14-dioxane (50 samples) and VOCs (as confirmation of field GC analytical results at a frequency of 10 percent) For budgeting purposes it is assumed that the 14-dioxane samples will be shipped to a DAS laboratory and the VOC samples will be shipped to a RAS laboratory If the analyses are instead to be performed by the OEME laboratory samples will be packaged and hand-delivered to OEME rather than shipped by Federal Express

One person will be onsite part time to assist with sample packaging It is assumed that samples will be packaged and shipped three days per week during each week of vertical profiling It is further assumed that sample packaging and daily delivery of sample shipments to a nearby Federal Express office or to the OEME laboratory can be completed within the 12-hour field day by the sample packager LOE for this effort is budgeted under Subtask 324(f) A summary of the sample quantities and analyses for the groundwater sampling is presented in Table 3-1

3512 Soil Sampling (Subtask 512) As discussed in the November 3 2006 meeting and November 8 2006 conference call with EPA (see meeting notes in Attachment 1) soil sampling will also be performed at selected locations during the vertical profiling effort Soil samples will be collected for VOC analysis by either a RAS laboratory or the OEME laboratory The effort for packaging and shipping or hand-delivering the soil samples is included under Subtask 324 (f) since the soil sampling is to be performed within the same 3-week field event as the vertical profiling effort A summary of the sample quantities and analyses for the soil sampling is presented in Table 3-1

352 Coordination with Appropriate EPA Sample Management Personnel (Subtask 52) As stated above MampE has budgeted for sample analysis by one DAS laboratory for 14-dioxane in groundwater and all remaining analyses (VOCs in groundwater and VOCs in soil) are assumed to be conducted by RAS laboratories or the OEME laboratory Budget for coordination for analyses by these laboratories is included in this subtask

This task includes the effort necessary for MampE to obtain DAS laboratory analytical services for the analyses of samples For DAS services MampE will coordinate the appropriate analytical support under RAC2 DAS Task Order No 0001 MampE will coordinate with the DAS laboratory prior to sample analysis to set-up a kick-off meeting to discuss the analyses The kick-off meeting is estimated to last approximately 2 hours and will be attended by the project chemist and RAC Lead Chemist In addition budget to prepare DAS work orders to authorize the DAS laboratory to perform analyses as well as to review and process laboratory invoices has been included These costs have been developed assuming that 1 DAS laboratory will be needed to perform DAS analyses for 14-dioxane in groundwater samples and that work order changes and invoice processing will be required for the laboratory It is anticipated

TO002-TOPCE-112006-100 16

that 5 DAS invoices and work orderswork order changes will be required for these samples LOE has also been included for technical review of the work order prior to submittal to the laboratory and to process the invoice upon receipt from the laboratory

Based on the anticipated analyses all required PE samples will be available from EPAs OEME and therefore only costs associated with obtaining those PE samples from OEME including submitting appropriate paperwork and pick-up of PE samples at OEME have been budgeted The PE samples are required by EPA to be submitted to the laboratory along with field samples and serve as an additional check on the performance of the laboratory beyond what is provided by field and laboratory QC samples

This subtask also includes tracking of samples from the field to the laboratory and through receipt of data by MampE Original CoC forms completed in the field will be kept on file at MampE for this task order Immediately following completion of sampling activities for each sampling event electronic versions of the RAS CoC forms will be forwarded to OEME for use in reporting sample number and analysis information and confirming receipt of laboratory data consistent with the field samples submitted Electronic versions of the RAS CoCs will also be uploaded to the EPA Sample Management Office (SMO) database through the SMO website Upon receipt of the DAS laboratory reports a DAS Notification Receipt Form will be submitted to OEME for each DAS SDG Submittal of the DAS Notification Receipt Form to OEME and DAS tracking are budgeted under the RAC DAS Task Order LOE has also been included for the eight sample delivery groups (SDGs) to be logged into the MampE tracking database A total of one low LOE has been included for this subtask

353 Implement EPA-Approved Laboratory QA Program (Subtask 53) It is assumed that the technical effort associated with overseeing that analytical services performed by the laboratory during sample analysis are in compliance with EPAs DAS program requirements are included as part of the RAC DAS Task Order No 0001 A low level of LOE has been included for the RAC Lead Chemist and Project Chemist to address sample management issues beyond the normal scope of the DAS program

354 Provide Sample Management (Subtask 54) This subtask includes technical efforts necessary for proper sample management and includes the administrative aspects of CoC sample tracking filing and archiving of analytical data The effort for logging in sample-specific data receipt information and tracking of sample data once laboratory data reports are received is included in this subtask for each of the sampling activities For estimating purposes it is assumed that the samples and parameters presented in Table 3-1 will be collected during the vertical profiling event These samples will be logged in for tracking and information purposes based on the assumption that 8 laboratory SDG packages will be received In addition data receipt from the laboratories will be recorded and documented to OEME The schedule for validation completion and submittal to OEME will also be included in the sample tracking system Following completion and submittal validation memos and data packages will be archived in a manner that is readily retrievable One cursory LOE has been budgeted for this task

355 Data Validation (Subtask 55) Laboratory data generated from the vertical profiling activities will be validated under this subtask in accordance with the Region I EPA-New England Data Validation Functional Guidelines for Evaluating Environmental Analyses dated February 1988 and December 1996b It is estimated that a total of 8 SDG packages will be received for the vertical profiling effort based on the anticipated number of samples and parameters being collected (Table 3-1) Consistent with the November 3 2006 scoping meeting all of the analytical data packages (8 SDGs) will be validated to Tier I One cursory LOE has been budgeted for each SDG Therefore a total of 8 cursory LOEs have been budgeted for Tier I data validation under this subtask

The results of the validation will be documented and submitted to EPA in a data validation report formatted to EPA Region I requirements

The technical effort estimates for performing Tier I validation have been developed on a SDG package basis (Table 3-1) and are based on MampEs experience performing validation using the validation guidelines The estimates of technical effort include preparation and submittal of Tier I data validation letter reports to EPA for DAS laboratory data along with the appropriate documentation and validation

TO002-TOPCE-112006-100 17

worksheets that are required based on the validation level and guidelines For estimating purposes it is further assumed that only one submittal of the validation letter reports and associated materials will be needed

In addition two hours per SDG have been included to prepare the electronic data deliverables (EDDs) that are received from the DAS and RAS laboratories These EDDs are used to generate the data tables included in the validation reports

36 Data Evaluation (Task 6)

This task describes evaluation activities that will be undertaken for the field and analytical data collected from vertical profiling monitoring well installation and hydraulic testing activities compilation of analytical data assessment of data usability reduction and tabulation of data and data trend evaluation MampE will organize and evaluate existing data and data gathered during the previous tasks to be used in the remedial design effort

361 Data Usability and Field QAQC (Task 61) Analytical data collected by field GC methods will be evaluated under this subtask Field GC results will be reviewed to evaluate precision of duplicates One cursory LOE has been budgeted for this effort

362 Data Reduction Tabulation and Evaluation (62) This subtask is budgeted consistent with the November 3 2006 and November 8 2006 meetings Under this subtask field data collected during the vertical profiling will be reduced and compiled into a Technical Memorandum which will serve as a preliminary presentation of results The contents of the Technical Memorandum are further described below in addition as requested by the TOPOs during the November 8 2006 clarifications call one technical meeting has been budgeted for the MampE project team to discuss with the EPA TOPOs the preliminary results of the vertical profiling and the placement of new monitoring wells to be installed under this Task Order

3623 Evaluate Hydrogeological Data (Subtask 623) The Technical Memorandum will include field-collected analytical data for selected VOCs from approximately 250 groundwater samples which will be tabulated and presented in summary tables Four vertical cross sections have been budgeted to graphically present the field GC data for the compounds analyzed The Technical Memorandum will also consist of brief text providing limited data interpretation and appendices with field data forms and copies of the field logbooks One high LOE has been budgeted for this effort

Following submittal of the Technical Memorandum MampE will schedule a meeting with the EPA TOPOs to discuss the preliminary results of the vertical profiling It is assumed that this meeting will be attended by four MampE personnel (task order manager engineer hydrogeologist and field hydrogeologist) will be held at EPAs Boston office and will be approximately 6 hours in length (including travel) In addition meeting preparation has been budgeted In total one low plus one cursory LOE has been budgeted for preparation for and attendance at one technical meeting LOE for meeting minutes has not been included for this task

364 Develop Data Evaluation Report (Subtask 64) MampE will evaluate and present results from the vertical profiling event monitoring well installation and slug tests in a Data Evaluation Report (DER) The DER will combine information previously submitted in the Technical Memorandum (included in Subtask 62) validated data obtained from off-site laboratories from the vertical profiling efforts and information obtained during monitoring well installation and the subsequent slug tests on the 8 new wells The text of the DER will include interpretation of the extent of the contaminant plumes in the vertical profiling areas with discussion of areas recommended for treatability testing of ISCO Field-GC and laboratory VOC data will be compared and discussed Additional figures may be included as appropriate Appendices to the DER will include monitoring well installation logs all validated data data from the slug tests copies of the field logbooks and photographs taken during field activities One high LOE has been budgeted for

TO002-TOPCE-112006-100 18

preparation and submittal of the DER It is assumed the DER will be submitted in draft form only and will not require revisions

37 Treatability Study and Pilot Testing (Task 7)

This task includes the planning and execution of an ISCO treatability study During the November 3 2006 scoping meeting EPA decided to postpone the majority of this task It was decided upon however that MampE would continue to research oxidants and suppliers that may be applicable to future ISCO treatability study efforts

371 Literature Search (Subtask 71) During Task Order Proposal development (Task 1) MampE has already conducted a limited literature search under Task 113 to identify chemical oxidant suppliers and screen chemical oxidants for possible injection during the pilot-scale test Based on discussions during the November 3 2006 scoping meeting an additional two low levels of effort is budgeted under Task 71 that will involve activities such as review of other Superfund remedial actions and guidance documents for examples of successful chemical oxidant injections to learn from implementation experience of other sites and to better understand processes in order to prepare specifications The EPA CLU-IN website (wwwclu-inorg) and other EPA ISCO guidance documents will be used to identify similar sites andor sources of information about technologies

311 PrefinalFinal Design (Task 11) - Not used based on November 3 2006 scoping meeting

313 Task Order Close-Out (Task 13)

At the completion of the technical work on the task order MampE will perform close-out activities that typically include consolidating project files and returning project files to the government

3131 Return Documents to the Government (Subtask 131) MampEs project files for this task order will be reviewed to identify any correspondence and project documents that need to be returned to EPA Documents that are typically returned include original materials such as field logbooks photographs and laboratory data Materials that are not typically returned include telecons internal memoranda correspondence to EPA and documents already submitted to EPA As described in Section 40 for each technical deliverable listed in Table 4-1 MampE will submit to EPA at least one hard copy and therefore it is assumed that no additional copies of those deliverables will be required at the close-out of the task order However electronic copies of other information (ie analytical data bases CADD files) that have not already been submitted to EPA will be provided upon request at the time of close-out

3132 File DuplicationDistributionStorage (Subtask 132) At task order close-out files will be duplicated distributed and stored These are the files that will be returned to the government as described in Subtask 131

3133 File Archiving (Subtask 133) The costs for archiving files in accordance with contract requirements are included in this subtask

TO002-TOPCE-112006-100 19

34 Sample Analysis (Task 4)

This task includes the estimated costs for screening-type and CLP-like laboratory sample analysis Table 3-1 summarizes the number of samples to be collected the number and types of quality control samples to be submitted and the assumed type of analysis for this TOPCE

341 Screening-Type Laboratory Sample Analysis (Subtask 41) Screening-type laboratory sample analysis by field GC is included within this subtask

3412 Analyze Groundwater Samples (Subtask 412) This subtask includes field GC analysis of groundwater samples A total of 291 groundwater samples (including field QC samples) for VOC analysis by field GC have been estimated (see Table 3-1) Costs for field GC rental obtaining and purchasing standard solutions for the field GC and LOE for performing field GC analyses has been included in Subtask 324 (f) Therefore no budget has been included under this subtask

3414 Analyze Soil Samples (Subtask 414) During the November 8 2006 conference call it was decided upon that VOCs in soil would be analyzed either by EPAs OEME laboratory or a RAS laboratory Therefore no budget has been included under this subtask

342 CLP-Type Laboratory Sample Analysis or FAST AC (Subtask 42) CLP-type laboratory sample analysis is included within this subtask MampE will utilize the FAST AC system to determine the most cost effective method of off-site sample analysis

3412 Analyze Groundwater Samples (Subtask 422) This subtask includes the estimated costs for providing DAS analytical laboratory services for the vertical profiling effort to analyze groundwater samples for 14-dioxane A total of 50 samples for 14-dioxane analysis are budgeted inclusive of field QC samples (see Table 3-1) The analytical costs developed under the DAS work assignment have been used to estimate the DAS analytical costs assuming a 21shyday turn-around time for laboratory data report delivery The cost estimate is based on payment of the DAS laboratory in Contract Year 1 since the sample collection is assumed to take place in the early Spring of 2007

For the estimated 45 VOCs in groundwater confirmation samples (including QC samples) analysis by a RAS laboratory or the OEME fixed laboratory has been assumed Therefore analytical laboratory costs for analyzing VOCs in groundwater confirmation samples have not been budgeted These samples will be collected and analyzed to confirm field GC results Budget is included under Task 5 for MampE to arrange for RAS laboratories if necessary and to coordinate with the RAS laboratories or OEME fixed laboratory as necessary for the groundwater VOC analyses

It is noted that the EPA TOPOs have requested that the OEME fixed laboratory perform the 14shydioxane and VOC sample analyses but as directed by EPA MampE has budgeted for a DAS laboratory for the 14-dioxane analyses and coordination for a RAS laboratory for the VOC analyses in case there are capacity issues at the OEME laboratory that prevent the analyses from being performed there once the vertical profiling event is firmly scheduled

Analyze Soil Samples (Subtask 414) An estimated 27 VOCs in soil samples (including QC samples) will be analyzed either by EPAs OEME laboratory or a RAS laboratory Therefore no costs have been included under this subtask for the analysis of VOCs in soil Budget is included under Task 5 for MampE to arrange for RAS laboratories if necessary and to coordinate with the RAS laboratories or OEME fixed laboratory as necessary for the soil VOC analyses

TO002-TOPCE-112006-100 15

35 Analytical Support and Data Validation (Task 5)

MampE will collect prepare and ship environmental samples using analytical methods and data validation procedures which provide data which are of definable quality and defensible Sampling will be performed in accordance with the QAPP and the clarifications summarized in the meeting notes from the November 3 2006 scoping meeting and the subequent conference call held with the TOPOs on November 8 2006 (see Attachment 1 for meeting notes) Efforts under Task 5 are budgeted for Contract Year 1 under the assumption that sampling takes place in early Spring 2007 such that all data can be received and validated by MampE before the end of June 2007

351 Prepare and Ship Environmental Samples (Subtask 51) All samples collected during field activities will be collected preserved and packaged following procedures to be specified in MampEs QAPP As specified by standard chain-of-custody (CoC) procedures the samples will be managed and tracked from collection through shipment via an overnight carrier until laboratory receipt and custody Original Chain-of-Custody (CoC) forms completed in the field will be kept on file at MampE for this work assignment

3511 Groundwater Sampling (Subtask 511) Consistent with the November 3 2006 scoping meeting notes the groundwater sampling will consist of collecting groundwater samples during the vertical profiling effort Samples for off-site laboratory analysis will be collected for analysis of 14-dioxane (50 samples) and VOCs (as confirmation of field GC analytical results at a frequency of 10 percent) For budgeting purposes it is assumed that the 14-dioxane samples will be shipped to a DAS laboratory and the VOC samples will be shipped to a RAS laboratory If the analyses are instead to be performed by the OEME laboratory samples will be packaged and hand-delivered to OEME rather than shipped by Federal Express

One person will be onsite part time to assist with sample packaging It is assumed that samples will be packaged and shipped three days per week during each week of vertical profiling It is further assumed that sample packaging and daily delivery of sample shipments to a nearby Federal Express office or to the OEME laboratory can be completed within the 12-hour field day by the sample packager LOE for this effort is budgeted under Subtask 324(f) A summary of the sample quantities and analyses for the groundwater sampling is presented in Table 3-1

3512 Soil Sampling (Subtask 512) As discussed in the November 3 2006 meeting and November 8 2006 conference call with EPA (see meeting notes in Attachment 1) soil sampling will also be performed at selected locations during the vertical profiling effort Soil samples will be collected for VOC analysis by either a RAS laboratory or the OEME laboratory The effort for packaging and shipping or hand-delivering the soil samples is included under Subtask 324 (f) since the soil sampling is to be performed within the same 3-week field event as the vertical profiling effort A summary of the sample quantities and analyses for the soil sampling is presented in Table 3-1

352 Coordination with Appropriate EPA Sample Management Personnel (Subtask 52) As stated above MampE has budgeted for sample analysis by one DAS laboratory for 14-dioxane in groundwater and all remaining analyses (VOCs in groundwater and VOCs in soil) are assumed to be conducted by RAS laboratories or the OEME laboratory Budget for coordination for analyses by these laboratories is included in this subtask

This task includes the effort necessary for MampE to obtain DAS laboratory analytical services for the analyses of samples For DAS services MampE will coordinate the appropriate analytical support under RAC2 DAS Task Order No 0001 MampE will coordinate with the DAS laboratory prior to sample analysis to set-up a kick-off meeting to discuss the analyses The kick-off meeting is estimated to last approximately 2 hours and will be attended by the project chemist and RAC Lead Chemist In addition budget to prepare DAS work orders to authorize the DAS laboratory to perform analyses as well as to review and process laboratory invoices has been included These costs have been developed assuming that 1 DAS laboratory will be needed to perform DAS analyses for 14-dioxane in groundwater samples and that work order changes and invoice processing will be required for the laboratory It is anticipated

TO002-TOPCE-112006-100 16

that 5 DAS invoices and work orderswork order changes will be required for these samples LOE has also been included for technical review of the work order prior to submittal to the laboratory and to process the invoice upon receipt from the laboratory

Based on the anticipated analyses all required PE samples will be available from EPAs OEME and therefore only costs associated with obtaining those PE samples from OEME including submitting appropriate paperwork and pick-up of PE samples at OEME have been budgeted The PE samples are required by EPA to be submitted to the laboratory along with field samples and serve as an additional check on the performance of the laboratory beyond what is provided by field and laboratory QC samples

This subtask also includes tracking of samples from the field to the laboratory and through receipt of data by MampE Original CoC forms completed in the field will be kept on file at MampE for this task order Immediately following completion of sampling activities for each sampling event electronic versions of the RAS CoC forms will be forwarded to OEME for use in reporting sample number and analysis information and confirming receipt of laboratory data consistent with the field samples submitted Electronic versions of the RAS CoCs will also be uploaded to the EPA Sample Management Office (SMO) database through the SMO website Upon receipt of the DAS laboratory reports a DAS Notification Receipt Form will be submitted to OEME for each DAS SDG Submittal of the DAS Notification Receipt Form to OEME and DAS tracking are budgeted under the RAC DAS Task Order LOE has also been included for the eight sample delivery groups (SDGs) to be logged into the MampE tracking database A total of one low LOE has been included for this subtask

353 Implement EPA-Approved Laboratory QA Program (Subtask 53) It is assumed that the technical effort associated with overseeing that analytical services performed by the laboratory during sample analysis are in compliance with EPAs DAS program requirements are included as part of the RAC DAS Task Order No 0001 A low level of LOE has been included for the RAC Lead Chemist and Project Chemist to address sample management issues beyond the normal scope of the DAS program

354 Provide Sample Management (Subtask 54) This subtask includes technical efforts necessary for proper sample management and includes the administrative aspects of CoC sample tracking filing and archiving of analytical data The effort for logging in sample-specific data receipt information and tracking of sample data once laboratory data reports are received is included in this subtask for each of the sampling activities For estimating purposes it is assumed that the samples and parameters presented in Table 3-1 will be collected during the vertical profiling event These samples will be logged in for tracking and information purposes based on the assumption that 8 laboratory SDG packages will be received In addition data receipt from the laboratories will be recorded and documented to OEME The schedule for validation completion and submittal to OEME will also be included in the sample tracking system Following completion and submittal validation memos and data packages will be archived in a manner that is readily retrievable One cursory LOE has been budgeted for this task

355 Data Validation (Subtask 55) Laboratory data generated from the vertical profiling activities will be validated under this subtask in accordance with the Region I EPA-New England Data Validation Functional Guidelines for Evaluating Environmental Analyses dated February 1988 and December 1996b It is estimated that a total of 8 SDG packages will be received for the vertical profiling effort based on the anticipated number of samples and parameters being collected (Table 3-1) Consistent with the November 3 2006 scoping meeting all of the analytical data packages (8 SDGs) will be validated to Tier I One cursory LOE has been budgeted for each SDG Therefore a total of 8 cursory LOEs have been budgeted for Tier I data validation under this subtask

The results of the validation will be documented and submitted to EPA in a data validation report formatted to EPA Region I requirements

The technical effort estimates for performing Tier I validation have been developed on a SDG package basis (Table 3-1) and are based on MampEs experience performing validation using the validation guidelines The estimates of technical effort include preparation and submittal of Tier I data validation letter reports to EPA for DAS laboratory data along with the appropriate documentation and validation

TO002-TOPCE-112006-100 17

worksheets that are required based on the validation level and guidelines For estimating purposes it is further assumed that only one submittal of the validation letter reports and associated materials will be needed

In addition two hours per SDG have been included to prepare the electronic data deliverables (EDDs) that are received from the DAS and RAS laboratories These EDDs are used to generate the data tables included in the validation reports

36 Data Evaluation (Task 6)

This task describes evaluation activities that will be undertaken for the field and analytical data collected from vertical profiling monitoring well installation and hydraulic testing activities compilation of analytical data assessment of data usability reduction and tabulation of data and data trend evaluation MampE will organize and evaluate existing data and data gathered during the previous tasks to be used in the remedial design effort

361 Data Usability and Field QAQC (Task 61) Analytical data collected by field GC methods will be evaluated under this subtask Field GC results will be reviewed to evaluate precision of duplicates One cursory LOE has been budgeted for this effort

362 Data Reduction Tabulation and Evaluation (62) This subtask is budgeted consistent with the November 3 2006 and November 8 2006 meetings Under this subtask field data collected during the vertical profiling will be reduced and compiled into a Technical Memorandum which will serve as a preliminary presentation of results The contents of the Technical Memorandum are further described below in addition as requested by the TOPOs during the November 8 2006 clarifications call one technical meeting has been budgeted for the MampE project team to discuss with the EPA TOPOs the preliminary results of the vertical profiling and the placement of new monitoring wells to be installed under this Task Order

3623 Evaluate Hydrogeological Data (Subtask 623) The Technical Memorandum will include field-collected analytical data for selected VOCs from approximately 250 groundwater samples which will be tabulated and presented in summary tables Four vertical cross sections have been budgeted to graphically present the field GC data for the compounds analyzed The Technical Memorandum will also consist of brief text providing limited data interpretation and appendices with field data forms and copies of the field logbooks One high LOE has been budgeted for this effort

Following submittal of the Technical Memorandum MampE will schedule a meeting with the EPA TOPOs to discuss the preliminary results of the vertical profiling It is assumed that this meeting will be attended by four MampE personnel (task order manager engineer hydrogeologist and field hydrogeologist) will be held at EPAs Boston office and will be approximately 6 hours in length (including travel) In addition meeting preparation has been budgeted In total one low plus one cursory LOE has been budgeted for preparation for and attendance at one technical meeting LOE for meeting minutes has not been included for this task

364 Develop Data Evaluation Report (Subtask 64) MampE will evaluate and present results from the vertical profiling event monitoring well installation and slug tests in a Data Evaluation Report (DER) The DER will combine information previously submitted in the Technical Memorandum (included in Subtask 62) validated data obtained from off-site laboratories from the vertical profiling efforts and information obtained during monitoring well installation and the subsequent slug tests on the 8 new wells The text of the DER will include interpretation of the extent of the contaminant plumes in the vertical profiling areas with discussion of areas recommended for treatability testing of ISCO Field-GC and laboratory VOC data will be compared and discussed Additional figures may be included as appropriate Appendices to the DER will include monitoring well installation logs all validated data data from the slug tests copies of the field logbooks and photographs taken during field activities One high LOE has been budgeted for

TO002-TOPCE-112006-100 18

preparation and submittal of the DER It is assumed the DER will be submitted in draft form only and will not require revisions

37 Treatability Study and Pilot Testing (Task 7)

This task includes the planning and execution of an ISCO treatability study During the November 3 2006 scoping meeting EPA decided to postpone the majority of this task It was decided upon however that MampE would continue to research oxidants and suppliers that may be applicable to future ISCO treatability study efforts

371 Literature Search (Subtask 71) During Task Order Proposal development (Task 1) MampE has already conducted a limited literature search under Task 113 to identify chemical oxidant suppliers and screen chemical oxidants for possible injection during the pilot-scale test Based on discussions during the November 3 2006 scoping meeting an additional two low levels of effort is budgeted under Task 71 that will involve activities such as review of other Superfund remedial actions and guidance documents for examples of successful chemical oxidant injections to learn from implementation experience of other sites and to better understand processes in order to prepare specifications The EPA CLU-IN website (wwwclu-inorg) and other EPA ISCO guidance documents will be used to identify similar sites andor sources of information about technologies

311 PrefinalFinal Design (Task 11) - Not used based on November 3 2006 scoping meeting

313 Task Order Close-Out (Task 13)

At the completion of the technical work on the task order MampE will perform close-out activities that typically include consolidating project files and returning project files to the government

3131 Return Documents to the Government (Subtask 131) MampEs project files for this task order will be reviewed to identify any correspondence and project documents that need to be returned to EPA Documents that are typically returned include original materials such as field logbooks photographs and laboratory data Materials that are not typically returned include telecons internal memoranda correspondence to EPA and documents already submitted to EPA As described in Section 40 for each technical deliverable listed in Table 4-1 MampE will submit to EPA at least one hard copy and therefore it is assumed that no additional copies of those deliverables will be required at the close-out of the task order However electronic copies of other information (ie analytical data bases CADD files) that have not already been submitted to EPA will be provided upon request at the time of close-out

3132 File DuplicationDistributionStorage (Subtask 132) At task order close-out files will be duplicated distributed and stored These are the files that will be returned to the government as described in Subtask 131

3133 File Archiving (Subtask 133) The costs for archiving files in accordance with contract requirements are included in this subtask

TO002-TOPCE-112006-100 19

35 Analytical Support and Data Validation (Task 5)

MampE will collect prepare and ship environmental samples using analytical methods and data validation procedures which provide data which are of definable quality and defensible Sampling will be performed in accordance with the QAPP and the clarifications summarized in the meeting notes from the November 3 2006 scoping meeting and the subequent conference call held with the TOPOs on November 8 2006 (see Attachment 1 for meeting notes) Efforts under Task 5 are budgeted for Contract Year 1 under the assumption that sampling takes place in early Spring 2007 such that all data can be received and validated by MampE before the end of June 2007

351 Prepare and Ship Environmental Samples (Subtask 51) All samples collected during field activities will be collected preserved and packaged following procedures to be specified in MampEs QAPP As specified by standard chain-of-custody (CoC) procedures the samples will be managed and tracked from collection through shipment via an overnight carrier until laboratory receipt and custody Original Chain-of-Custody (CoC) forms completed in the field will be kept on file at MampE for this work assignment

3511 Groundwater Sampling (Subtask 511) Consistent with the November 3 2006 scoping meeting notes the groundwater sampling will consist of collecting groundwater samples during the vertical profiling effort Samples for off-site laboratory analysis will be collected for analysis of 14-dioxane (50 samples) and VOCs (as confirmation of field GC analytical results at a frequency of 10 percent) For budgeting purposes it is assumed that the 14-dioxane samples will be shipped to a DAS laboratory and the VOC samples will be shipped to a RAS laboratory If the analyses are instead to be performed by the OEME laboratory samples will be packaged and hand-delivered to OEME rather than shipped by Federal Express

One person will be onsite part time to assist with sample packaging It is assumed that samples will be packaged and shipped three days per week during each week of vertical profiling It is further assumed that sample packaging and daily delivery of sample shipments to a nearby Federal Express office or to the OEME laboratory can be completed within the 12-hour field day by the sample packager LOE for this effort is budgeted under Subtask 324(f) A summary of the sample quantities and analyses for the groundwater sampling is presented in Table 3-1

3512 Soil Sampling (Subtask 512) As discussed in the November 3 2006 meeting and November 8 2006 conference call with EPA (see meeting notes in Attachment 1) soil sampling will also be performed at selected locations during the vertical profiling effort Soil samples will be collected for VOC analysis by either a RAS laboratory or the OEME laboratory The effort for packaging and shipping or hand-delivering the soil samples is included under Subtask 324 (f) since the soil sampling is to be performed within the same 3-week field event as the vertical profiling effort A summary of the sample quantities and analyses for the soil sampling is presented in Table 3-1

352 Coordination with Appropriate EPA Sample Management Personnel (Subtask 52) As stated above MampE has budgeted for sample analysis by one DAS laboratory for 14-dioxane in groundwater and all remaining analyses (VOCs in groundwater and VOCs in soil) are assumed to be conducted by RAS laboratories or the OEME laboratory Budget for coordination for analyses by these laboratories is included in this subtask

This task includes the effort necessary for MampE to obtain DAS laboratory analytical services for the analyses of samples For DAS services MampE will coordinate the appropriate analytical support under RAC2 DAS Task Order No 0001 MampE will coordinate with the DAS laboratory prior to sample analysis to set-up a kick-off meeting to discuss the analyses The kick-off meeting is estimated to last approximately 2 hours and will be attended by the project chemist and RAC Lead Chemist In addition budget to prepare DAS work orders to authorize the DAS laboratory to perform analyses as well as to review and process laboratory invoices has been included These costs have been developed assuming that 1 DAS laboratory will be needed to perform DAS analyses for 14-dioxane in groundwater samples and that work order changes and invoice processing will be required for the laboratory It is anticipated

TO002-TOPCE-112006-100 16

that 5 DAS invoices and work orderswork order changes will be required for these samples LOE has also been included for technical review of the work order prior to submittal to the laboratory and to process the invoice upon receipt from the laboratory

Based on the anticipated analyses all required PE samples will be available from EPAs OEME and therefore only costs associated with obtaining those PE samples from OEME including submitting appropriate paperwork and pick-up of PE samples at OEME have been budgeted The PE samples are required by EPA to be submitted to the laboratory along with field samples and serve as an additional check on the performance of the laboratory beyond what is provided by field and laboratory QC samples

This subtask also includes tracking of samples from the field to the laboratory and through receipt of data by MampE Original CoC forms completed in the field will be kept on file at MampE for this task order Immediately following completion of sampling activities for each sampling event electronic versions of the RAS CoC forms will be forwarded to OEME for use in reporting sample number and analysis information and confirming receipt of laboratory data consistent with the field samples submitted Electronic versions of the RAS CoCs will also be uploaded to the EPA Sample Management Office (SMO) database through the SMO website Upon receipt of the DAS laboratory reports a DAS Notification Receipt Form will be submitted to OEME for each DAS SDG Submittal of the DAS Notification Receipt Form to OEME and DAS tracking are budgeted under the RAC DAS Task Order LOE has also been included for the eight sample delivery groups (SDGs) to be logged into the MampE tracking database A total of one low LOE has been included for this subtask

353 Implement EPA-Approved Laboratory QA Program (Subtask 53) It is assumed that the technical effort associated with overseeing that analytical services performed by the laboratory during sample analysis are in compliance with EPAs DAS program requirements are included as part of the RAC DAS Task Order No 0001 A low level of LOE has been included for the RAC Lead Chemist and Project Chemist to address sample management issues beyond the normal scope of the DAS program

354 Provide Sample Management (Subtask 54) This subtask includes technical efforts necessary for proper sample management and includes the administrative aspects of CoC sample tracking filing and archiving of analytical data The effort for logging in sample-specific data receipt information and tracking of sample data once laboratory data reports are received is included in this subtask for each of the sampling activities For estimating purposes it is assumed that the samples and parameters presented in Table 3-1 will be collected during the vertical profiling event These samples will be logged in for tracking and information purposes based on the assumption that 8 laboratory SDG packages will be received In addition data receipt from the laboratories will be recorded and documented to OEME The schedule for validation completion and submittal to OEME will also be included in the sample tracking system Following completion and submittal validation memos and data packages will be archived in a manner that is readily retrievable One cursory LOE has been budgeted for this task

355 Data Validation (Subtask 55) Laboratory data generated from the vertical profiling activities will be validated under this subtask in accordance with the Region I EPA-New England Data Validation Functional Guidelines for Evaluating Environmental Analyses dated February 1988 and December 1996b It is estimated that a total of 8 SDG packages will be received for the vertical profiling effort based on the anticipated number of samples and parameters being collected (Table 3-1) Consistent with the November 3 2006 scoping meeting all of the analytical data packages (8 SDGs) will be validated to Tier I One cursory LOE has been budgeted for each SDG Therefore a total of 8 cursory LOEs have been budgeted for Tier I data validation under this subtask

The results of the validation will be documented and submitted to EPA in a data validation report formatted to EPA Region I requirements

The technical effort estimates for performing Tier I validation have been developed on a SDG package basis (Table 3-1) and are based on MampEs experience performing validation using the validation guidelines The estimates of technical effort include preparation and submittal of Tier I data validation letter reports to EPA for DAS laboratory data along with the appropriate documentation and validation

TO002-TOPCE-112006-100 17

worksheets that are required based on the validation level and guidelines For estimating purposes it is further assumed that only one submittal of the validation letter reports and associated materials will be needed

In addition two hours per SDG have been included to prepare the electronic data deliverables (EDDs) that are received from the DAS and RAS laboratories These EDDs are used to generate the data tables included in the validation reports

36 Data Evaluation (Task 6)

This task describes evaluation activities that will be undertaken for the field and analytical data collected from vertical profiling monitoring well installation and hydraulic testing activities compilation of analytical data assessment of data usability reduction and tabulation of data and data trend evaluation MampE will organize and evaluate existing data and data gathered during the previous tasks to be used in the remedial design effort

361 Data Usability and Field QAQC (Task 61) Analytical data collected by field GC methods will be evaluated under this subtask Field GC results will be reviewed to evaluate precision of duplicates One cursory LOE has been budgeted for this effort

362 Data Reduction Tabulation and Evaluation (62) This subtask is budgeted consistent with the November 3 2006 and November 8 2006 meetings Under this subtask field data collected during the vertical profiling will be reduced and compiled into a Technical Memorandum which will serve as a preliminary presentation of results The contents of the Technical Memorandum are further described below in addition as requested by the TOPOs during the November 8 2006 clarifications call one technical meeting has been budgeted for the MampE project team to discuss with the EPA TOPOs the preliminary results of the vertical profiling and the placement of new monitoring wells to be installed under this Task Order

3623 Evaluate Hydrogeological Data (Subtask 623) The Technical Memorandum will include field-collected analytical data for selected VOCs from approximately 250 groundwater samples which will be tabulated and presented in summary tables Four vertical cross sections have been budgeted to graphically present the field GC data for the compounds analyzed The Technical Memorandum will also consist of brief text providing limited data interpretation and appendices with field data forms and copies of the field logbooks One high LOE has been budgeted for this effort

Following submittal of the Technical Memorandum MampE will schedule a meeting with the EPA TOPOs to discuss the preliminary results of the vertical profiling It is assumed that this meeting will be attended by four MampE personnel (task order manager engineer hydrogeologist and field hydrogeologist) will be held at EPAs Boston office and will be approximately 6 hours in length (including travel) In addition meeting preparation has been budgeted In total one low plus one cursory LOE has been budgeted for preparation for and attendance at one technical meeting LOE for meeting minutes has not been included for this task

364 Develop Data Evaluation Report (Subtask 64) MampE will evaluate and present results from the vertical profiling event monitoring well installation and slug tests in a Data Evaluation Report (DER) The DER will combine information previously submitted in the Technical Memorandum (included in Subtask 62) validated data obtained from off-site laboratories from the vertical profiling efforts and information obtained during monitoring well installation and the subsequent slug tests on the 8 new wells The text of the DER will include interpretation of the extent of the contaminant plumes in the vertical profiling areas with discussion of areas recommended for treatability testing of ISCO Field-GC and laboratory VOC data will be compared and discussed Additional figures may be included as appropriate Appendices to the DER will include monitoring well installation logs all validated data data from the slug tests copies of the field logbooks and photographs taken during field activities One high LOE has been budgeted for

TO002-TOPCE-112006-100 18

preparation and submittal of the DER It is assumed the DER will be submitted in draft form only and will not require revisions

37 Treatability Study and Pilot Testing (Task 7)

This task includes the planning and execution of an ISCO treatability study During the November 3 2006 scoping meeting EPA decided to postpone the majority of this task It was decided upon however that MampE would continue to research oxidants and suppliers that may be applicable to future ISCO treatability study efforts

371 Literature Search (Subtask 71) During Task Order Proposal development (Task 1) MampE has already conducted a limited literature search under Task 113 to identify chemical oxidant suppliers and screen chemical oxidants for possible injection during the pilot-scale test Based on discussions during the November 3 2006 scoping meeting an additional two low levels of effort is budgeted under Task 71 that will involve activities such as review of other Superfund remedial actions and guidance documents for examples of successful chemical oxidant injections to learn from implementation experience of other sites and to better understand processes in order to prepare specifications The EPA CLU-IN website (wwwclu-inorg) and other EPA ISCO guidance documents will be used to identify similar sites andor sources of information about technologies

311 PrefinalFinal Design (Task 11) - Not used based on November 3 2006 scoping meeting

313 Task Order Close-Out (Task 13)

At the completion of the technical work on the task order MampE will perform close-out activities that typically include consolidating project files and returning project files to the government

3131 Return Documents to the Government (Subtask 131) MampEs project files for this task order will be reviewed to identify any correspondence and project documents that need to be returned to EPA Documents that are typically returned include original materials such as field logbooks photographs and laboratory data Materials that are not typically returned include telecons internal memoranda correspondence to EPA and documents already submitted to EPA As described in Section 40 for each technical deliverable listed in Table 4-1 MampE will submit to EPA at least one hard copy and therefore it is assumed that no additional copies of those deliverables will be required at the close-out of the task order However electronic copies of other information (ie analytical data bases CADD files) that have not already been submitted to EPA will be provided upon request at the time of close-out

3132 File DuplicationDistributionStorage (Subtask 132) At task order close-out files will be duplicated distributed and stored These are the files that will be returned to the government as described in Subtask 131

3133 File Archiving (Subtask 133) The costs for archiving files in accordance with contract requirements are included in this subtask

TO002-TOPCE-112006-100 19

that 5 DAS invoices and work orderswork order changes will be required for these samples LOE has also been included for technical review of the work order prior to submittal to the laboratory and to process the invoice upon receipt from the laboratory

Based on the anticipated analyses all required PE samples will be available from EPAs OEME and therefore only costs associated with obtaining those PE samples from OEME including submitting appropriate paperwork and pick-up of PE samples at OEME have been budgeted The PE samples are required by EPA to be submitted to the laboratory along with field samples and serve as an additional check on the performance of the laboratory beyond what is provided by field and laboratory QC samples

This subtask also includes tracking of samples from the field to the laboratory and through receipt of data by MampE Original CoC forms completed in the field will be kept on file at MampE for this task order Immediately following completion of sampling activities for each sampling event electronic versions of the RAS CoC forms will be forwarded to OEME for use in reporting sample number and analysis information and confirming receipt of laboratory data consistent with the field samples submitted Electronic versions of the RAS CoCs will also be uploaded to the EPA Sample Management Office (SMO) database through the SMO website Upon receipt of the DAS laboratory reports a DAS Notification Receipt Form will be submitted to OEME for each DAS SDG Submittal of the DAS Notification Receipt Form to OEME and DAS tracking are budgeted under the RAC DAS Task Order LOE has also been included for the eight sample delivery groups (SDGs) to be logged into the MampE tracking database A total of one low LOE has been included for this subtask

353 Implement EPA-Approved Laboratory QA Program (Subtask 53) It is assumed that the technical effort associated with overseeing that analytical services performed by the laboratory during sample analysis are in compliance with EPAs DAS program requirements are included as part of the RAC DAS Task Order No 0001 A low level of LOE has been included for the RAC Lead Chemist and Project Chemist to address sample management issues beyond the normal scope of the DAS program

354 Provide Sample Management (Subtask 54) This subtask includes technical efforts necessary for proper sample management and includes the administrative aspects of CoC sample tracking filing and archiving of analytical data The effort for logging in sample-specific data receipt information and tracking of sample data once laboratory data reports are received is included in this subtask for each of the sampling activities For estimating purposes it is assumed that the samples and parameters presented in Table 3-1 will be collected during the vertical profiling event These samples will be logged in for tracking and information purposes based on the assumption that 8 laboratory SDG packages will be received In addition data receipt from the laboratories will be recorded and documented to OEME The schedule for validation completion and submittal to OEME will also be included in the sample tracking system Following completion and submittal validation memos and data packages will be archived in a manner that is readily retrievable One cursory LOE has been budgeted for this task

355 Data Validation (Subtask 55) Laboratory data generated from the vertical profiling activities will be validated under this subtask in accordance with the Region I EPA-New England Data Validation Functional Guidelines for Evaluating Environmental Analyses dated February 1988 and December 1996b It is estimated that a total of 8 SDG packages will be received for the vertical profiling effort based on the anticipated number of samples and parameters being collected (Table 3-1) Consistent with the November 3 2006 scoping meeting all of the analytical data packages (8 SDGs) will be validated to Tier I One cursory LOE has been budgeted for each SDG Therefore a total of 8 cursory LOEs have been budgeted for Tier I data validation under this subtask

The results of the validation will be documented and submitted to EPA in a data validation report formatted to EPA Region I requirements

The technical effort estimates for performing Tier I validation have been developed on a SDG package basis (Table 3-1) and are based on MampEs experience performing validation using the validation guidelines The estimates of technical effort include preparation and submittal of Tier I data validation letter reports to EPA for DAS laboratory data along with the appropriate documentation and validation

TO002-TOPCE-112006-100 17

worksheets that are required based on the validation level and guidelines For estimating purposes it is further assumed that only one submittal of the validation letter reports and associated materials will be needed

In addition two hours per SDG have been included to prepare the electronic data deliverables (EDDs) that are received from the DAS and RAS laboratories These EDDs are used to generate the data tables included in the validation reports

36 Data Evaluation (Task 6)

This task describes evaluation activities that will be undertaken for the field and analytical data collected from vertical profiling monitoring well installation and hydraulic testing activities compilation of analytical data assessment of data usability reduction and tabulation of data and data trend evaluation MampE will organize and evaluate existing data and data gathered during the previous tasks to be used in the remedial design effort

361 Data Usability and Field QAQC (Task 61) Analytical data collected by field GC methods will be evaluated under this subtask Field GC results will be reviewed to evaluate precision of duplicates One cursory LOE has been budgeted for this effort

362 Data Reduction Tabulation and Evaluation (62) This subtask is budgeted consistent with the November 3 2006 and November 8 2006 meetings Under this subtask field data collected during the vertical profiling will be reduced and compiled into a Technical Memorandum which will serve as a preliminary presentation of results The contents of the Technical Memorandum are further described below in addition as requested by the TOPOs during the November 8 2006 clarifications call one technical meeting has been budgeted for the MampE project team to discuss with the EPA TOPOs the preliminary results of the vertical profiling and the placement of new monitoring wells to be installed under this Task Order

3623 Evaluate Hydrogeological Data (Subtask 623) The Technical Memorandum will include field-collected analytical data for selected VOCs from approximately 250 groundwater samples which will be tabulated and presented in summary tables Four vertical cross sections have been budgeted to graphically present the field GC data for the compounds analyzed The Technical Memorandum will also consist of brief text providing limited data interpretation and appendices with field data forms and copies of the field logbooks One high LOE has been budgeted for this effort

Following submittal of the Technical Memorandum MampE will schedule a meeting with the EPA TOPOs to discuss the preliminary results of the vertical profiling It is assumed that this meeting will be attended by four MampE personnel (task order manager engineer hydrogeologist and field hydrogeologist) will be held at EPAs Boston office and will be approximately 6 hours in length (including travel) In addition meeting preparation has been budgeted In total one low plus one cursory LOE has been budgeted for preparation for and attendance at one technical meeting LOE for meeting minutes has not been included for this task

364 Develop Data Evaluation Report (Subtask 64) MampE will evaluate and present results from the vertical profiling event monitoring well installation and slug tests in a Data Evaluation Report (DER) The DER will combine information previously submitted in the Technical Memorandum (included in Subtask 62) validated data obtained from off-site laboratories from the vertical profiling efforts and information obtained during monitoring well installation and the subsequent slug tests on the 8 new wells The text of the DER will include interpretation of the extent of the contaminant plumes in the vertical profiling areas with discussion of areas recommended for treatability testing of ISCO Field-GC and laboratory VOC data will be compared and discussed Additional figures may be included as appropriate Appendices to the DER will include monitoring well installation logs all validated data data from the slug tests copies of the field logbooks and photographs taken during field activities One high LOE has been budgeted for

TO002-TOPCE-112006-100 18

preparation and submittal of the DER It is assumed the DER will be submitted in draft form only and will not require revisions

37 Treatability Study and Pilot Testing (Task 7)

This task includes the planning and execution of an ISCO treatability study During the November 3 2006 scoping meeting EPA decided to postpone the majority of this task It was decided upon however that MampE would continue to research oxidants and suppliers that may be applicable to future ISCO treatability study efforts

371 Literature Search (Subtask 71) During Task Order Proposal development (Task 1) MampE has already conducted a limited literature search under Task 113 to identify chemical oxidant suppliers and screen chemical oxidants for possible injection during the pilot-scale test Based on discussions during the November 3 2006 scoping meeting an additional two low levels of effort is budgeted under Task 71 that will involve activities such as review of other Superfund remedial actions and guidance documents for examples of successful chemical oxidant injections to learn from implementation experience of other sites and to better understand processes in order to prepare specifications The EPA CLU-IN website (wwwclu-inorg) and other EPA ISCO guidance documents will be used to identify similar sites andor sources of information about technologies

311 PrefinalFinal Design (Task 11) - Not used based on November 3 2006 scoping meeting

313 Task Order Close-Out (Task 13)

At the completion of the technical work on the task order MampE will perform close-out activities that typically include consolidating project files and returning project files to the government

3131 Return Documents to the Government (Subtask 131) MampEs project files for this task order will be reviewed to identify any correspondence and project documents that need to be returned to EPA Documents that are typically returned include original materials such as field logbooks photographs and laboratory data Materials that are not typically returned include telecons internal memoranda correspondence to EPA and documents already submitted to EPA As described in Section 40 for each technical deliverable listed in Table 4-1 MampE will submit to EPA at least one hard copy and therefore it is assumed that no additional copies of those deliverables will be required at the close-out of the task order However electronic copies of other information (ie analytical data bases CADD files) that have not already been submitted to EPA will be provided upon request at the time of close-out

3132 File DuplicationDistributionStorage (Subtask 132) At task order close-out files will be duplicated distributed and stored These are the files that will be returned to the government as described in Subtask 131

3133 File Archiving (Subtask 133) The costs for archiving files in accordance with contract requirements are included in this subtask

TO002-TOPCE-112006-100 19

worksheets that are required based on the validation level and guidelines For estimating purposes it is further assumed that only one submittal of the validation letter reports and associated materials will be needed

In addition two hours per SDG have been included to prepare the electronic data deliverables (EDDs) that are received from the DAS and RAS laboratories These EDDs are used to generate the data tables included in the validation reports

36 Data Evaluation (Task 6)

This task describes evaluation activities that will be undertaken for the field and analytical data collected from vertical profiling monitoring well installation and hydraulic testing activities compilation of analytical data assessment of data usability reduction and tabulation of data and data trend evaluation MampE will organize and evaluate existing data and data gathered during the previous tasks to be used in the remedial design effort

361 Data Usability and Field QAQC (Task 61) Analytical data collected by field GC methods will be evaluated under this subtask Field GC results will be reviewed to evaluate precision of duplicates One cursory LOE has been budgeted for this effort

362 Data Reduction Tabulation and Evaluation (62) This subtask is budgeted consistent with the November 3 2006 and November 8 2006 meetings Under this subtask field data collected during the vertical profiling will be reduced and compiled into a Technical Memorandum which will serve as a preliminary presentation of results The contents of the Technical Memorandum are further described below in addition as requested by the TOPOs during the November 8 2006 clarifications call one technical meeting has been budgeted for the MampE project team to discuss with the EPA TOPOs the preliminary results of the vertical profiling and the placement of new monitoring wells to be installed under this Task Order

3623 Evaluate Hydrogeological Data (Subtask 623) The Technical Memorandum will include field-collected analytical data for selected VOCs from approximately 250 groundwater samples which will be tabulated and presented in summary tables Four vertical cross sections have been budgeted to graphically present the field GC data for the compounds analyzed The Technical Memorandum will also consist of brief text providing limited data interpretation and appendices with field data forms and copies of the field logbooks One high LOE has been budgeted for this effort

Following submittal of the Technical Memorandum MampE will schedule a meeting with the EPA TOPOs to discuss the preliminary results of the vertical profiling It is assumed that this meeting will be attended by four MampE personnel (task order manager engineer hydrogeologist and field hydrogeologist) will be held at EPAs Boston office and will be approximately 6 hours in length (including travel) In addition meeting preparation has been budgeted In total one low plus one cursory LOE has been budgeted for preparation for and attendance at one technical meeting LOE for meeting minutes has not been included for this task

364 Develop Data Evaluation Report (Subtask 64) MampE will evaluate and present results from the vertical profiling event monitoring well installation and slug tests in a Data Evaluation Report (DER) The DER will combine information previously submitted in the Technical Memorandum (included in Subtask 62) validated data obtained from off-site laboratories from the vertical profiling efforts and information obtained during monitoring well installation and the subsequent slug tests on the 8 new wells The text of the DER will include interpretation of the extent of the contaminant plumes in the vertical profiling areas with discussion of areas recommended for treatability testing of ISCO Field-GC and laboratory VOC data will be compared and discussed Additional figures may be included as appropriate Appendices to the DER will include monitoring well installation logs all validated data data from the slug tests copies of the field logbooks and photographs taken during field activities One high LOE has been budgeted for

TO002-TOPCE-112006-100 18

preparation and submittal of the DER It is assumed the DER will be submitted in draft form only and will not require revisions

37 Treatability Study and Pilot Testing (Task 7)

This task includes the planning and execution of an ISCO treatability study During the November 3 2006 scoping meeting EPA decided to postpone the majority of this task It was decided upon however that MampE would continue to research oxidants and suppliers that may be applicable to future ISCO treatability study efforts

371 Literature Search (Subtask 71) During Task Order Proposal development (Task 1) MampE has already conducted a limited literature search under Task 113 to identify chemical oxidant suppliers and screen chemical oxidants for possible injection during the pilot-scale test Based on discussions during the November 3 2006 scoping meeting an additional two low levels of effort is budgeted under Task 71 that will involve activities such as review of other Superfund remedial actions and guidance documents for examples of successful chemical oxidant injections to learn from implementation experience of other sites and to better understand processes in order to prepare specifications The EPA CLU-IN website (wwwclu-inorg) and other EPA ISCO guidance documents will be used to identify similar sites andor sources of information about technologies

311 PrefinalFinal Design (Task 11) - Not used based on November 3 2006 scoping meeting

313 Task Order Close-Out (Task 13)

At the completion of the technical work on the task order MampE will perform close-out activities that typically include consolidating project files and returning project files to the government

3131 Return Documents to the Government (Subtask 131) MampEs project files for this task order will be reviewed to identify any correspondence and project documents that need to be returned to EPA Documents that are typically returned include original materials such as field logbooks photographs and laboratory data Materials that are not typically returned include telecons internal memoranda correspondence to EPA and documents already submitted to EPA As described in Section 40 for each technical deliverable listed in Table 4-1 MampE will submit to EPA at least one hard copy and therefore it is assumed that no additional copies of those deliverables will be required at the close-out of the task order However electronic copies of other information (ie analytical data bases CADD files) that have not already been submitted to EPA will be provided upon request at the time of close-out

3132 File DuplicationDistributionStorage (Subtask 132) At task order close-out files will be duplicated distributed and stored These are the files that will be returned to the government as described in Subtask 131

3133 File Archiving (Subtask 133) The costs for archiving files in accordance with contract requirements are included in this subtask

TO002-TOPCE-112006-100 19

preparation and submittal of the DER It is assumed the DER will be submitted in draft form only and will not require revisions

37 Treatability Study and Pilot Testing (Task 7)

This task includes the planning and execution of an ISCO treatability study During the November 3 2006 scoping meeting EPA decided to postpone the majority of this task It was decided upon however that MampE would continue to research oxidants and suppliers that may be applicable to future ISCO treatability study efforts

371 Literature Search (Subtask 71) During Task Order Proposal development (Task 1) MampE has already conducted a limited literature search under Task 113 to identify chemical oxidant suppliers and screen chemical oxidants for possible injection during the pilot-scale test Based on discussions during the November 3 2006 scoping meeting an additional two low levels of effort is budgeted under Task 71 that will involve activities such as review of other Superfund remedial actions and guidance documents for examples of successful chemical oxidant injections to learn from implementation experience of other sites and to better understand processes in order to prepare specifications The EPA CLU-IN website (wwwclu-inorg) and other EPA ISCO guidance documents will be used to identify similar sites andor sources of information about technologies

311 PrefinalFinal Design (Task 11) - Not used based on November 3 2006 scoping meeting

313 Task Order Close-Out (Task 13)

At the completion of the technical work on the task order MampE will perform close-out activities that typically include consolidating project files and returning project files to the government

3131 Return Documents to the Government (Subtask 131) MampEs project files for this task order will be reviewed to identify any correspondence and project documents that need to be returned to EPA Documents that are typically returned include original materials such as field logbooks photographs and laboratory data Materials that are not typically returned include telecons internal memoranda correspondence to EPA and documents already submitted to EPA As described in Section 40 for each technical deliverable listed in Table 4-1 MampE will submit to EPA at least one hard copy and therefore it is assumed that no additional copies of those deliverables will be required at the close-out of the task order However electronic copies of other information (ie analytical data bases CADD files) that have not already been submitted to EPA will be provided upon request at the time of close-out

3132 File DuplicationDistributionStorage (Subtask 132) At task order close-out files will be duplicated distributed and stored These are the files that will be returned to the government as described in Subtask 131

3133 File Archiving (Subtask 133) The costs for archiving files in accordance with contract requirements are included in this subtask

TO002-TOPCE-112006-100 19

40 DOCUMENT PRODUCTION AND SCHEDULE

Unless otherwise specified in Section 30 and Table 4-1 all documents submitted for this project will be considered drafts until approved by the EPA TOPOs or comments are received from EPA and revisions made based on the comments Following necessary revisions re-submittal and approval will determine finalization of the documents The anticipated deliverables budgeted for this task order are listed by task in Table 4-1

Task Order Proposals will be submitted to the EPA Contracting Officer and Project Officer Task Order Proposals will initially be submitted in electronic format followed by hard copies One bound copy of each proposal will be submitted to the Contracting Officer while one bound and one unbound copy will be submitted to the Project Officer

As specified in Table 4-1 two copies of each technical deliverable will be submitted to the EPA TOPOs and one copy will be submitted directly to the NHDES Project Manager for the site unless otherwise directed by the TOPOs In addition the EPA Project Officer will receive a copy of the submittal letter for each deliverable

50 SCHEDULE

The Task Order completion date is June 30 2008 The anticipated schedule for activities is presented in the attached schedule Note that the schedule of technical activities includes only those activities budgeted herein based on EPAs direction during the scoping meeting on November 3 2006 The schedule does not include possible future activities to be scoped by EPA such as bench and pilot scale testing (Task 7) or PrefinalFinal Design (Task 11) The technical activities currently scoped and budgeted herein are anticipated to be completed well before the POP end date of June 30 2008 However as EPA indicated at the November 3 2006 meeting a Task Order Modification with Amended SOW is planned that will include technical activities that will likely extend beyond the current technical activity schedule Task 1 Project Management activities have been budgeted through the POP end date of June 30 2008 in anticipation of the Task Order Modification and to be consistent with the Task Order completion date

60 ESTIMATED LABOR

The MampE Task Order Manager for this assignment is Ms Barbara Weir PhD PE who will coordinate and direct all activities for this task order and serve as the point of contact for the EPA TOPOs Ms Laurie OConnor PE project engineer will assist Ms Weir in performing project management activities and directing field efforts Ms OConnor led previous treatability study efforts conducted at the site during 2004 Mr Warren Diesl senior hydrogeologist will provide technical expertise on subsurface sampling methods and the site geology and hydrogeology Other technical assistance will be provided by technical staff with appropriate experience Estimated labor hours and costs provided in the attached cost estimate are based on the SOW WBS and task descriptions identified in Section 30

TO002-TOPCE-112006-100 20

TABLE 4-1 SUMMARY OF MAJOR SUBMiTTALS FOR THE TECHNICAL SUPPORT

Deliverables

TASK 1 Draft Task Order Proposal and Cost Estimate

Final Task Order Proposal and revised Cost Estimate

Monthly Progress ReportsInvoices

Health and Safety Plan (HASP)

Quality Assurance Project Plan (QAPP)

Final QAPP

Field Logbooks

TASK 5

Data Validation Memoranda

TASK 6

Technical Memorandum

Data Evaluation Report

Distribution provided in text

No of Copies

3

3

As required

3

3

3

1

2

3

3

Submittal to EPA (business daysweeks)

November 20 2006

15 days after receipt of EPA comments

20th day of each month

4 weeks prior to initiation of field work

4 weeks prior to initiation of field work

10 days after receipt of EPA comments

At the end of Field Work

To be determined

30 days after completion of vertical profiling

Within 6 weeks of completion of data validation andor slug tests

EPA Review PeriodSubmittal of Comments to MampE (business daysweeks)

2 weeks

EPA approval upon receipt

Not Applicable

Not Applicable

2 weeks

EPA approval upon receipt

Not Applicable

To be determined

To be determined

To be determined

TO002-TOPCE-112006-100 21

1

tradeJ

1 0 Project Planning and Support

11 Project Plannifig

111 Scoping Meeiin-g (Prep Aile^vdan

t

A iMDvdcpTOPCE

12 Preparation of Site-Spacific Plans

o

lt

10

~ 3

j3

72 3 Update SAP

13 Project Management

1 3 Prepare Periodic Status Re

141 Identify and Procure Subcontracts includes subcontract mgmtj

Routine VVelf

30 Data Acquisiiion

31 Mobilization and Dumobiiizatio

32 Field investigation

324 conduct Hydro aiGround-water Investigatio

(1) is) rsistaU Mo i bull - __raquoJ

456 day

75 dayshy

16S days

165 days i

S5 cays

175 days

175 days

65 days

75 days

65 days

TO0022RD-RD-0105 Ottati amp Goss

Remedia Design

1 1 1

40 Siimpie Analysis

A i Screampsi Type Lsb Sample Analysis

50 Anaiytica Support and Data Validation

52 Coordinate with Sam pie Msnsgernent Pamp

53 Impsemsri EPA Approved Lab QA

~ ^ S 5 Validate Dsla

60 Data Evaluation

2Jpound 61 Dats UssBiilty Evsluation sv

62 Data Reduction Tabulatior

2$ hUaampiing io Discuss Tech M

70 Troatability Study and Pilot Testing

44 1 ^ 130 Task Order Closoout

Preset Otiati amp GOES TO 0022 j^shyDate Mon 112006 cldeg

38 days

95 days

95 days

90 days

9 days

35 days

20 ciays

10 days

25 days

50 days

SO daw

Exiemsi Tsampks

70 FIELD EQUIPMENT AND SUPPLIES

The major equipment rentals anticipated for the conducting the field work for this task order are listed in Table 7shy1 MampE will supply all equipment for this task order and has generated the cost estimate to identify the required field equipment and supplies based on previous experience with the site In addition to equipment the anticipated costs for sample shipments have been included in the cost estimate Sample shipment costs assume that for the vertical profiling three coolers per shipment day will be shipped via Federal Express priority overnight services The estimate also assumes that approximately nine Saturday delivery of sample shipments will be required for the vertical profiling

TO002-TOPCE-112006-100 23

1. barcode 273598
2. barcodetext SDMS DOC ID 273598

TABLE 4-1 SUMMARY OF MAJOR SUBMiTTALS FOR THE TECHNICAL SUPPORT

Deliverables

TASK 1 Draft Task Order Proposal and Cost Estimate

Final Task Order Proposal and revised Cost Estimate

Monthly Progress ReportsInvoices

Health and Safety Plan (HASP)

Quality Assurance Project Plan (QAPP)

Final QAPP

Field Logbooks

TASK 5

Data Validation Memoranda

TASK 6

Technical Memorandum

Data Evaluation Report

Distribution provided in text

No of Copies

3

3

As required

3

3

3

1

2

3

3

Submittal to EPA (business daysweeks)

November 20 2006

15 days after receipt of EPA comments

20th day of each month

4 weeks prior to initiation of field work

4 weeks prior to initiation of field work

10 days after receipt of EPA comments

At the end of Field Work

To be determined

30 days after completion of vertical profiling

Within 6 weeks of completion of data validation andor slug tests

EPA Review PeriodSubmittal of Comments to MampE (business daysweeks)

2 weeks

EPA approval upon receipt

Not Applicable

Not Applicable

2 weeks

EPA approval upon receipt

Not Applicable

To be determined

To be determined

To be determined

TO002-TOPCE-112006-100 21

1

tradeJ

1 0 Project Planning and Support

11 Project Plannifig

111 Scoping Meeiin-g (Prep Aile^vdan

t

A iMDvdcpTOPCE

12 Preparation of Site-Spacific Plans

o

lt

10

~ 3

j3

72 3 Update SAP

13 Project Management

1 3 Prepare Periodic Status Re

141 Identify and Procure Subcontracts includes subcontract mgmtj

Routine VVelf

30 Data Acquisiiion

31 Mobilization and Dumobiiizatio

32 Field investigation

324 conduct Hydro aiGround-water Investigatio

(1) is) rsistaU Mo i bull - __raquoJ

456 day

75 dayshy

16S days

165 days i

S5 cays

175 days

175 days

65 days

75 days

65 days

TO0022RD-RD-0105 Ottati amp Goss

Remedia Design

1 1 1

40 Siimpie Analysis

A i Screampsi Type Lsb Sample Analysis

50 Anaiytica Support and Data Validation

52 Coordinate with Sam pie Msnsgernent Pamp

53 Impsemsri EPA Approved Lab QA

~ ^ S 5 Validate Dsla

60 Data Evaluation

2Jpound 61 Dats UssBiilty Evsluation sv

62 Data Reduction Tabulatior

2$ hUaampiing io Discuss Tech M

70 Troatability Study and Pilot Testing

44 1 ^ 130 Task Order Closoout

Preset Otiati amp GOES TO 0022 j^shyDate Mon 112006 cldeg

38 days

95 days

95 days

90 days

9 days

35 days

20 ciays

10 days

25 days

50 days

SO daw

Exiemsi Tsampks

70 FIELD EQUIPMENT AND SUPPLIES

The major equipment rentals anticipated for the conducting the field work for this task order are listed in Table 7shy1 MampE will supply all equipment for this task order and has generated the cost estimate to identify the required field equipment and supplies based on previous experience with the site In addition to equipment the anticipated costs for sample shipments have been included in the cost estimate Sample shipment costs assume that for the vertical profiling three coolers per shipment day will be shipped via Federal Express priority overnight services The estimate also assumes that approximately nine Saturday delivery of sample shipments will be required for the vertical profiling

TO002-TOPCE-112006-100 23

1. barcode 273598
2. barcodetext SDMS DOC ID 273598

1

tradeJ

1 0 Project Planning and Support

11 Project Plannifig

111 Scoping Meeiin-g (Prep Aile^vdan

t

A iMDvdcpTOPCE

12 Preparation of Site-Spacific Plans

o

lt

10

~ 3

j3

72 3 Update SAP

13 Project Management

1 3 Prepare Periodic Status Re

141 Identify and Procure Subcontracts includes subcontract mgmtj

Routine VVelf

30 Data Acquisiiion

31 Mobilization and Dumobiiizatio

32 Field investigation

324 conduct Hydro aiGround-water Investigatio

(1) is) rsistaU Mo i bull - __raquoJ

456 day

75 dayshy

16S days

165 days i

S5 cays

175 days

175 days

65 days

75 days

65 days

TO0022RD-RD-0105 Ottati amp Goss

Remedia Design

1 1 1

40 Siimpie Analysis

A i Screampsi Type Lsb Sample Analysis

50 Anaiytica Support and Data Validation

52 Coordinate with Sam pie Msnsgernent Pamp

53 Impsemsri EPA Approved Lab QA

~ ^ S 5 Validate Dsla

60 Data Evaluation

2Jpound 61 Dats UssBiilty Evsluation sv

62 Data Reduction Tabulatior

2$ hUaampiing io Discuss Tech M

70 Troatability Study and Pilot Testing

44 1 ^ 130 Task Order Closoout

Preset Otiati amp GOES TO 0022 j^shyDate Mon 112006 cldeg

38 days

95 days

95 days

90 days

9 days

35 days

20 ciays

10 days

25 days

50 days

SO daw

Exiemsi Tsampks

70 FIELD EQUIPMENT AND SUPPLIES

The major equipment rentals anticipated for the conducting the field work for this task order are listed in Table 7shy1 MampE will supply all equipment for this task order and has generated the cost estimate to identify the required field equipment and supplies based on previous experience with the site In addition to equipment the anticipated costs for sample shipments have been included in the cost estimate Sample shipment costs assume that for the vertical profiling three coolers per shipment day will be shipped via Federal Express priority overnight services The estimate also assumes that approximately nine Saturday delivery of sample shipments will be required for the vertical profiling

TO002-TOPCE-112006-100 23

1. barcode 273598
2. barcodetext SDMS DOC ID 273598

70 FIELD EQUIPMENT AND SUPPLIES

The major equipment rentals anticipated for the conducting the field work for this task order are listed in Table 7shy1 MampE will supply all equipment for this task order and has generated the cost estimate to identify the required field equipment and supplies based on previous experience with the site In addition to equipment the anticipated costs for sample shipments have been included in the cost estimate Sample shipment costs assume that for the vertical profiling three coolers per shipment day will be shipped via Federal Express priority overnight services The estimate also assumes that approximately nine Saturday delivery of sample shipments will be required for the vertical profiling

TO002-TOPCE-112006-100 23

1. barcode 273598
2. barcodetext SDMS DOC ID 273598