FORTY-SECOND PERIODIC/SEVENTH LONG TERM …

Forty-Second Periodic/Seventh Long Term Monitoring ofSurface Water and Groundwater (Fall 2014)

Union Chemical Company Site214 Main StreetHope, Maine

Submitted to:United States EnvironmentalProtection Agency – Region 1andMaine Department of Environmental Protection

March 31, 2015

Forty-Second Periodic/Seventh Long Term Monitoring ofSurface Water and Groundwater (Fall 2014)

Union Chemical Company Site

214 Main Street

Hope Maine

Submitted to:United States EnvironmentalProtection Agency - Region 1andMaine Department of Environmental Protection

March 31, 2015

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Table of Contents

1.0 Introduction...................................................................................................................................... 1

1.1 Background......................................................................................................................... 1

1.2 Groundwater Target Cleanup Levels .................................................................................. 5

1.3 Surface Water and Groundwater Monitoring Work Plan Objectives andModifications ...................................................................................................................... 5

1.4 Groundwater Wells Installed Since 2000 ........................................................................... 6

2.0 Sampling and Analysis Program...................................................................................................... 7

2.1 Measurement of Groundwater Elevations .......................................................................... 7

2.2 Installation of Dedicated Sampling Tubing ........................................................................ 7

2.3 Water Sampling and Analysis............................................................................................. 7

2.4 Sampling of the ITW-1 Well .............................................................................................. 8

2.5 Sampling of Wells with Unreacted Permanganate ............................................................. 8

2.6 Residuals Management ....................................................................................................... 9

3.0 Data Quality Assurance/Quality Control ......................................................................................... 9

3.1 Quality of Samples Collected ............................................................................................. 9

3.2 Laboratory Data Validation and Review .......................................................................... 10

3.2.1 Laboratory Data Review...................................................................................... 10

3.2.2 Data Validation Summary of Findings ................................................................ 10

3.3 Conclusion ........................................................................................................................ 13

4.0 Water Level Elevation Survey Results .......................................................................................... 13

4.1 Survey of Groundwater Monitoring Wells ....................................................................... 13

4.2 Groundwater Elevations ................................................................................................... 14

5.0 Analytical Results .......................................................................................................................... 14

5.1 Water Quality Indicator Parameters.................................................................................. 14

5.2 Groundwater Analytical Results ....................................................................................... 17

5.2.1 Dissolved 1,1-DCA.............................................................................................. 19

5.2.2 Dissolved TCE..................................................................................................... 20

5.2.3 Dissolved 1,2-DCE .............................................................................................. 20

5.2.4 Dissolved DMF.................................................................................................... 21

5.3 Surface Water Analytical Results ..................................................................................... 21

5.4 ITW-1 Water Sample Analytical Results ......................................................................... 21

6.0 Summary........................................................................................................................................ 22

6.1 Data Usability ................................................................................................................... 22

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6.2 Groundwater Elevations ................................................................................................... 22

6.3 Contaminant Distribution ................................................................................................. 23

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List of Tables

Table 1 Groundwater Elevation Data

Table 2 Comparative Groundwater Table Elevations

Table 3 Water Quality Indicator Parameters

Table 4 Summary of Constituents Detected

Table 5 Constituent Maximum Concentration Found and Performance Standards – Overburden Wells

Table 6 Constituent Maximum Concentration Found and Performance Standards – Bedrock Wells

Table 7 Comparative Quarterly Groundwater Sampling Results

Table 8 Comparative Quarterly Surface Water Sampling Results

List of Figures

Figure 1 Site Locus Plan

Figure 2 Site Plan

Figure 3 Groundwater Potentiometric Surface Map - Intermediate Overburden (Q42)

Figure 4 Groundwater Potentiometric Surface Map – Shallow Bedrock (Q42)

Figure 5 Intermediate Overburden Contaminant Plume Extent (Q42)

Figure 6 Bedrock Contaminant Plume Extent (Q42)

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List of Appendices

Appendix A Groundwater and Surface Water Analytical Results

Appendix B Water Quality Indicator Parameter Trend Graphs

Appendix C Contaminant Trend Graphs by Well

Appendix D Contaminant Trend Graphs by Compound

Appendix E Low Flow Sampling Methodology (correspondence dated March 24, 2000, Rev. 1)

Appendix F Laboratory Certificates of Analysis: Spectrum Analytical Inc

Appendix G Limitations

Forty-Second/Seventh Long Term Monitoringof Surface Water and Groundwater (Fall 2014)

214 Main Street, Hope, Maine

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1.0 Introduction

This Forty-Second Periodic/Seventh Long Term (Q42/LTM-7) Monitoring Report has beenprepared to document a surface and groundwater monitoring event conducted at the UnionChemical Company (UCC) Site (The Site) in Hope, Maine in late-September 2014. This reportprovides a summary of Site background; previous monitoring events; recent remedial activities atthe Site; groundwater target cleanup levels; work plan objectives and modifications; and recentgroundwater conditions at the Site. Detailed discussions on each of these topics has previouslybeen submitted to the U.S. Environmental Protection Agency (EPA) and the State of MaineDepartment of Environmental Protection (MEDEP). The EPA and MEDEP are collectivelyreferred to in this document as the agencies.

1.1 Background

Periodic surface water and groundwater monitoring began for the Site in Summer 1992. Periodicsampling was performed quarterly until Fall 1997 (Quarters 1 through 22) when the monitoringfrequency was switched to semi-annual (Q23 through Q35). Following Q35 (Q36/LTM-1 toQ42/LTM-7) monitoring was performed annually or bi-annually. Beginning in Spring 2002(Q31), responsibility for sampling, monitoring and related activities was transferred to andconducted by Tetra Tech Inc. of Framingham, Massachusetts.

The Surface Water and Groundwater Monitoring Program was established pursuant to the UCCSuperfund Site Record of Decision (ROD), dated December 27, 1990; the ROD Statement ofWork, dated July 26, 1991; and the Explanation of Significant Difference (ESD), dated June 30,1994. Approval of the Source Control (SC)/Management of Migration (MOM) designdocuments, including the Surface Water and Groundwater Monitoring Work Plan (Work Plan),was received from the EPA in correspondence dated April 5, 1995. Changes to the monitoringwork plan are made periodically to account for changes in data needs over time. Changes are notimplemented until approved by the EPA, after opportunity for review and comment by theMEDEP.

The SC remediation (i.e., the soil treatment component) was completed in 1998. Following thesubmittal of the Closure Action Plan for Soils, Findings and Summary (CAP-SFS) report, EPA,following review by ME DEP, approved the CAP-SFS in correspondence dated December 17,1999. This marked the conclusion of the source control component for the Site.

From 1997 through 2000, in an attempt to accelerate the overall objectives of the MOM, theremedial program incorporated the field application of potassium permanganate solution togroundwater to oxidize chemical constituents in the adsorbed or dissolved phase. A synopsis ofthe completed permanganate activities is as follows:

A pilot test of a dilute permanganate solution was first conducted in the Fall of 1997;

Wider application of permanganate was conducted from June through August 1998 withinthe source area;



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Re-treatment and expanded permanganate additions were then conducted during the Summerand early Fall of 1999; and,

Additional permanganate treatment was conducted in contaminant areas identified by theQ26 and Q27 sampling/monitoring events during the Summer and Fall of 2000.

Permanganate additions have not been conducted since the Fall of 2000.

Following completion of permanganate additions in Fall 2000, a bioremediation pilot testconsisting of field addition of carbon source solutions to the Site groundwater were performed.The carbon source additions served as a reduced substrate to assist in the depletion of residualpermanganate and provide an electron donor/carbon source to enhance anaerobic, reductivedechlorination of 1,1- dichloroethane (DCA) along with remaining chlorinated ethenes andethanes. Initially, carbon sources used for solution additions included molasses and sodiumlactate. Site groundwater data from Fall 2000 (Q28) and Spring 2001 (Q29) were used toestablish pre-carbon source addition conditions. A synopsis of the completed carbon sourceactivities is as follows:

Approximately 200 gallons of dilute molasses were added to four wells located within theeastern portion of the Site during two separate events in August and November 2001;

Approximately 23 gallons of 6% sodium lactate solution were added to three wells locatedwithin the south central portion of the Site between August and November 2001;

The potential impact of the carbon additions was evaluated during Spring 2002 (Q31)through sampling and analysis of target wells for VOCs and monitored natural attenuation(MNA) parameters. A comparison of previous contaminant concentrations reported duringFall 2000 (Q28) through Fall 2001 (Q30) was used to determine which carbon source moreeffectively enhanced the microbial activity in the subsurface.

Sodium lactate was selected as the preferable carbon source at the Site based on theevaluation of microbial activity following the Q31 monitoring event.

Tetra Tech personnel performed sodium lactate additions to the designated pumping wellsand monitoring wells throughout the Site in August 2002. Stoichiometric requirementspreviously calculated by IT in their 2001 work plan were used to estimate the quantity ofcarbon source material necessary to deplete (dissolved) oxygen, react with residualpermanganate, and provide at least a 25- to 100-fold excess of carbon source concentrationsin the groundwater versus detected volatile organic compound (VOC) concentrations in thewells.

In an effort to further define the overburden and bedrock aquifer properties and close data gapsidentified in the second revision of the Conceptual Site Model, pump tests were performed onwells B-6A-D and OPW in July of 2005. The goals of the pump test included an evaluation ofpotential hydraulic connections between pumped wells B-6A-D and OPW and other bedrockwells B-8A-D, ODW-U and/or ODW-L; evaluating potential connectivity of the overburden



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aquifer to the bedrock aquifer; and the calculation of hydraulic properties for each aquiferincluding vertical and horizontal hydraulic conductivity, transmissivity and storativity. The pumptest data was further used to estimate the range of groundwater velocities encountered duringseasonal groundwater recharge events at the Site in overburden and bedrock aquifers, and waspresented in the third revision of the Conceptual Site Model. The well B-6A-D pump test wasperformed as a 27-hour pump test. The well OPW pump test was performed as a 120.5 hourpump test.

The well B-6A-D pump test demonstrated a limited hydraulic connectivity between well B-6A-Dand the bedrock wells that were selected for drawdown monitoring under pumping conditionswith an apparent low connectivity to the bedrock wells across the Site. The shallow bedrockwells closest to well B-6A-D, including wells OW-1-1D, B-5C-D, B-12A-D, and B-8AD showedthe greatest measured drawdown. Bedrock wells MW-15-D, NPW and MW-13A-D showed theleast measured drawdown amongst the bedrock wells, and a moderate hydraulic connection wasobserved at well OPW. The overburden wells did not exhibit a significant drawdown nor asignificant hydraulic connection to the shallow bedrock during the B-6A-D pump test.

The OPW pump test demonstrated a stronger relative hydraulic connectivity between thebedrock monitoring wells than those observed during the B-6AD pump test. Each of the selectedbedrock gauging wells had drawdown of greater than one foot at the conclusion of the OPWpump test except for well B-8A-D (0.78 feet). The most significant measured drawdown values(during the OPW pump test) were measured at wells NPW and ITW, which are bedrock wellswith similar construction (open boreholes) and closest to the pumping well OPW. The shallowbedrock wells B-6A-D and OW-1-1D each had significant measured drawdown. Wells MW-15-D, NPW and MW-13A-D showed much greater measured drawdown during OPW pump testthan the B-6A-D pump test; however, the higher pumping rate is believed to be the reason for theobserved larger drawdown differences between the well B-6A-D pump test (pumping rate ofapproximately 0.88 gallons per minute (gpm)) and the well OPW pump test (approximately 5gpm).

To put the different observed drawdowns into context, the results of the 2005 bedrock well pumptests and review of the historical rock core logs were used to define the hydraulic and structuralproperties of the bedrock aquifer. Shallow bedrock was defined in the CSM as the bedrocklithologic unit that lies at depths between approximately 85 and 225 feet below ground surface(bgs) and consists of an upper weathered bedrock surface that becomes more competent withdepth. Between approximately 85 feet bgs and 110 feet bgs in the vicinity of the on-Site cap, thebedrock lithology is defined as a folded quartz-mica-schist and granite that transitions to gneissand intruded granite pegmatite at depths greater than 110 feet bgs. Outside of the on-Site caparea, the bedrock lithology is not folded and is defined as gneiss and intruded granite pegmatitefrom approximately 85 feet bgs to 225 feet bgs. The strike of the fold axis is northeast-southwestand the dip of the fold is east-southeast toward Quiggle Brook. Core logs from several of theshallow bedrock wells on-Site indicate that the upper thickness of rock is moderately to highlyfractured due to the deformational folding of the rock. Jointing of the bedrock was noted in theupper portions of the cores and is likely related to glacial erosion and regional uplift, and ageneral decrease in fracture frequency and aperture was noted with depth. A small number of



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steeply dipping fractures observed in bedrock core samples taken from borings advanced on thelimbs of the bedrock fold were observed as deep as 100 feet bgs, and groundwater migratingunder downward gradients on the western and central portions of the Site could move throughthe weathered bedrock layer to these fractures and could flow down-dip (southeast), deeper intothe bedrock formation and to a lesser degree along the strike (southwest) of the fractures. Aswith the overburden soils and the weathered bedrock, upward hydraulic gradients in the shallowbedrock occur along the eastern portion of the Site where groundwater follows the fracturesalong the foliated layers of the fold in the rock and is released from the fractures via connectionto weathered bedrock fractures and ultimately to Quiggle Brook. This bedrock feature which islocated adjacent to Quiggle Brook, results in the ability of the VOCs/SVOCs to migrate to thesoutheast in the shallow bedrock to Quiggle Brook.

The review of the core logs and definition of the hydraulic properties concluded that there is asmall range of hydraulic conductivities that dominates within the fractured bedrock and shallowbedrock and those hydraulic conductivities are primarily dependent upon lithology (quartz-micaschist) and the dip orientation of the structural fold (southeast). The apparent changes indrawdown under pumping conditions were adequately explained by the rate of pumping duringeach pump test; however the different pumping conditions were beneficial in showing existingpreferential pathways more clearly and highlighted the role that fracture pathways have ongroundwater flow at different depths in the bedrock. The conclusion of the CSM was thatgroundwater in bedrock flows southeasterly along the dominant fracture directions and along theorientation of the structural fold toward Quiggle Brook, which overlies a low spot in the fold.The results of these two pump tests also indicated that while some minor connections may existbetween the bedrock and overburden aquifers at the Site, in general, the two aquifers behave asseparate hydrologic units. Therefore, for the purpose of presenting the groundwater quality datain this report, separate plume figures are appropriate to represent site conditions and groundwaterimpacts. The likely direction for migration of the contaminant plumes and the inferred limits ofthe plume(s) were based on the geology of the Site to the extent practicable.

Following the completion of the pump tests, pumping was continued to allow for the injection ofhydrogen peroxide. The goal of the hydrogen peroxide oxidant addition was to potentiallyoxidize VOC’s within the hydraulic connections between selected bedrock monitoring wellpoints. The hydrogen peroxide injection events occurred between July 25, 2005 and August 4,2005 and between September 26, 2005 and September 29, 2005. Simultaneous pumping of wellsB-6A-D and OPW was performed during both hydrogen peroxide injections in order to maintaina depressed water table within the bedrock aquifer and provide hydraulic control to draw injectedhydrogen peroxide from the selected injection wells towards the pumping wells. This combinedpumping likely increased the oxidant coverage within the hydraulic connections betweenfractures in bedrock aquifer. Hydrogen peroxide injection points included monitoring wells B-8A-D, B-9A-I, EW-1, ODW-L, ODW-U, OW-1-1D, NBW-L, NBW-U, P-20 and B-6A-D(injections were performed in well B-6A-D while only well OPW was being pumped). A total of1,100 gallons of 35% hydrogen peroxide solution was added to these wells during the twooxidant injection events.



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1.2 Groundwater Target Cleanup Levels

EPA has established groundwater target cleanup levels for the Site, based on MaximumContaminant Levels (MCLs) established under State and Federal laws and the State of Maine’sMaximum Exposure Guidelines (MEGs), for several of the contaminants identified in thegroundwater at the Site. EPA has determined that MCLs are the Applicable or Relevant andAppropriate Requirements (ARARs) for this Site, and that the State MEGs are to be consideredto establish the groundwater cleanup levels for those constituents for which no MCL exists. Dataresults and comparisons are presented within the context of these groundwater cleanup levels.

1.3 Surface Water and Groundwater Monitoring Work Plan Objectives andModifications

The objectives of the Surface Water and Groundwater Monitoring Plan are to obtain surfacewater and groundwater data to:

monitor the extent of contaminants of concern at the Site;

assess the progress of remedial activities; and,

monitor for potential impacts to surface water and groundwater as a result of remedialactivities.

The Surface Water and Groundwater Monitoring Program was modified during several meetingsand teleconferences between EPA, MEDEP, American Environmental Consultants (AEC – Trustrepresentative), IT and Tetra Tech in 1998, 2000, early 2002, and 2004. The frequency of samplecollection was changed from quarterly to twice-annually (completed in April and October ofeach year) beginning in April 1998. Subsequently, the frequency of sample collection waschanged from twice annually to bi-annual to be completed in October or November of eachapplicable year beginning in November 2004. Due to elevated residual peroxide concentrationsin several of the designated monitoring wells for these monitoring events no formal monitoringevent took place in the Fall of 2005. Beginning with the Q27 (April 2000) sampling round,groundwater samples have been collected using low flow sampling procedures.

Currently, bi-annual sampling is being performed under the Draft Long Term Monitoring Planprepared by Tetra Tech and dated September 10, 2004. The wells to be sampled and targetanalytes for Q42/LTM-7 were approved by the EPA and MEDEP based upon the 2014/2015Work Plan for the Site dated August 15, 2014. Surface water and groundwater samples wereanalyzed for volatile organic compounds (VOCs), and select groundwater samples were analyzedfor N, N-Dimethylformamide (DMF). The sampled monitoring wells included: wells locatedwithin the identified source area; areas of elevated groundwater contaminant concentrations; anddowngradient boundaries of previous detectable contaminant concentrations. This Q42/LTM-7report includes both current and historical laboratory analytical data presented in tabular formatwith graphical trend analysis.



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1.4 Groundwater Wells Installed Since 2000

During 2001, a new groundwater pumping well (ITW-1) was installed at the Site to provide awater source (non-potable) for decontamination purposes and the various remedial activities atthe Site. The well is pumped periodically and sampled for volatile organic compounds duringeach pumping event. The ITW-1 well was pumped by Tetra Tech personnel briefly for thepurposes of sampling on October 19, 2006 and was sampled by EPA in October 2007.Groundwater analytical results from EPA in 2007 had reported concentrations of TCE (1.5 ug/L)and MTBE (1.2 ug/L); however, these concentrations were below the applicable PerformanceStandards.

In October 2003, three new two-inch diameter monitoring wells were installed to replace thepreviously installed B-5 series wells that consisted of one-inch diameter monitoring wells.Replacement wells were advanced approximately 10 feet north of the existing B-5 series welltriplet using a track-mounted ATV drilling rig, and included the installation of two overburdenmonitoring wells and one bedrock monitoring well. The intent was to screen the new wells overthe same depth intervals as the B-5 series wells being replaced. The shallow replacement well,B-5E-S, was screened over the same interval as the previously installed shallow well, B-5B-S.However, the previously installed intermediate well (B-5B-I) and previously installed bedrockwell (B-5A-D) were completed using only two-foot sections of well screen. In an attempt toprovide additional available well screen area for contact with the groundwater for samplingevents, the intermediate and bedrock replacement wells (B-5D-I and B-5C-D) were completedusing 5-foot sections of well screen. In general, the screened intervals in the replacement wellsincluded the intervals over which the original B-5 wells were screened. A more detaileddiscussion of the replacement of the B-5 series well triplet was presented in the Bedrock WellInstallation and Geophysical Evaluation report prepared by Tetra Tech dated April 30, 2004which was submitted to the agencies.

In November 2003, a new bedrock well couplet (NBW) was installed at the Site to provideadditional coverage of the bedrock aquifer in the area southwest of the source area and cross-gradient to the B-8 series wells. Air-rotary drilling techniques were used to advance a boringapproximately 300 feet below the ground surface. Hager GeoScience, Inc (Hager) performed ageophysical evaluation of the newly installed bedrock boring to identify potential water bearingfractures/zones. Based on the results of Hager’s geophysical evaluation, a deep bedrock well(NBW-L) was set and screened from 115 to 120 feet below the top of the installed metal casing,and a shallow bedrock well (NBW-U) was set and screened from 56 feet to 66 feet below the topof the casing. A more detailed discussion of the installation of this bedrock well couplet and thegeophysical evaluation performed by Hager was presented in the Bedrock Well Installation andGeophysical Evaluation report prepared by Tetra Tech dated April 30, 2004 which wassubmitted to the agencies.



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2.0 Sampling and Analysis Program

Tetra Tech conducted Q42/LTM-7 monitoring activities and sample collection on September 30,2014. The observed conditions and reported analytical results from this sampling event areincluded in the figures, tables and discussions within this report.

2.1 Measurement of Groundwater Elevations

Water levels in the wells selected for sampling during Q42/LTM-7 were measured on September29, 2014 using an electronic water level indicator. As part of the Q42/LTM-7 monitoring event,depth to water measurements were collected from 27 monitoring wells at the Site (16 shallow &intermediate wells, 11 bedrock wells). The water level measurements were obtained on the sameday and within an 8-hour period. The well locations and calculated groundwater potentiometricsurface maps for Q42/LTM-7 are shown on Figures 3 and 4.

2.2 Installation of Dedicated Sampling Tubing

Dedicated sampling tubing was installed in each of the Q42/LTM-7 wells during previous Siteactivities. 0.25-inch diameter tubing has been previously installed in each well as close to themid-point of the well screen as possible. Groundwater sample collection tubing included 0.5-inch diameter tubing and/or 1-inch diameter outer tubing. The outer tubing was used as aprotective sleeve in some wells to provide additional rigidity to overcome the contact frictionalforces between the well casing and the small diameter tubing.

2.3 Water Sampling and Analysis

Groundwater samples were collected during the Q42/LTM-7 sampling event from a total of 10monitoring wells (4 Intermediate wells and 6 bedrock wells) and one downstream surface waterpoint. The downstream surface water sample was collected from the QB-4 sampling station(Quiggle Brook).

The weather conditions at the Site during the September 30, 2014 groundwater sampling eventwere seasonally cool. The need to wrap the tubing and low flow equipment in insulation to avoidcold/hot ambient air temperatures was not necessary.

The Q42/LTM-7 wells listed in the table below were purged in accordance with the low flowsampling procedures attached in Appendix E, using a peristaltic pump and the dedicated tubingfor each sample location. The Q42/LTM-7 sampling was the sixteenth consecutive samplingevent using low flow sampling procedures. Previous sample flow rates and sample times wereused as references during the purging for each well location. However, since the measuredgroundwater parameters have fluctuated over the sixteen sampling events, groundwater purgingcontinued, and groundwater parameters were recorded, until stabilization was observed. Forwells with dissolved oxygen (DO) concentrations less than 1.0 mg/L, three consecutive readingswithin a compared difference of 0.10 mg/L were considered the benchmark for stabilizationregardless of whether the readings were within the 10% stabilization threshold for DO. However,



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during the Q42/LTM-7 groundwater sampling event, stabilization of measured groundwaterparameters was achieved within the required threshold for each of the sampled wells. While themedian dissolved oxygen (DO) readings for the sampled wells were reported at concentrationsless than 1.0 mg/L, elevated DO levels were recorded in two monitoring wells (ODW-L andNBW-L). The elevated DO levels likely represent the continued presence of residual oxygenfrom the hydrogen peroxide oxidant additions conducted in Summer/Fall 2005.

Groundwater in the wells was purged until field parameters (dissolved oxygen, oxidation-reduction potential, pH, specific conductivity, temperature and turbidity) reached stabilization.Collected groundwater samples were analyzed for VOCs by EPA Method 8260 and for DMF asshown in the Q42/LTM-7 Sampling Summary table below.

Union Chemical Company Site

Q42/LTM-7 Sampling Summary

Sample Source Disposition Location(s)Sampled for VOCs

Location(s)Sampled for DMF

AdditionalAction Taken

Monitoring Wells(10)

Samplescollected9/30/14

B-5D-I, B-12B-I,NBW-L, NBW-U,ODW-U, B-8A-D,B-6A-D, B-9A-I,ODW-L and P-20

B-5D-I, B-12B-I,NBW-L, NBW-U,ODW-U, B-8A-D,B-6A-D, B-9A-I,ODW-L and P-20

None

Surface WaterMonitoringStation (QuiggleBrook)

Samplecollected9/30/14

QB-4 QB-4 None

2.4 Sampling of the ITW-1 Well

While concentrations of VOCs were reported for a water sample collected from the ITW-1 wellin 2005, subsequent sampling conducted by EPA in October 2007 indicated that concentrationsof TCE (1.5 ug/L) and MTBE (1.3 ug/L) were below the applicable Performance Standards. TheITW-1 well was not used as source for decontamination water during the Q42/LTM-7 samplingevent, therefore, the well was not sampled during this event.

2.5 Sampling of Wells with Unreacted Permanganate

During a previous groundwater monitoring event in April 2001 (Q29), IT Corporation, in concertwith EPA’s mobile laboratory, conducted a field test and analysis of preservation methods forgroundwater samples containing measurable concentrations of unreacted permanganate (as



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evidenced by color, either prior to or during purging). The purpose of the field test was todetermine which type of sample preservation best represented the VOC concentrations ingroundwater.

IT Corporation and the regulatory agencies subsequently determined that collected groundwatersamples which exhibited visual evidence of permanganate would be preserved using sodiumthiosulfate in lieu of hydrochloric acid prior to analysis for VOCs. Additional details regardingthe preservative study, data collected and analysis may be found in separate correspondencedated May 31, 2001, which highlighted the study.

No wells sampled for laboratory analysis during the Q42/LTM-7 monitoring event exhibitedvisual evidence of residual permanganate, therefore, sodium thiosulfate was not used to preservethe collected samples.

2.6 Residuals Management

Liquids from the decontamination of sampling equipment and personal protective equipment(PPE) were handled in accordance with the SC/MOM 100% Design for Persistent OrganicPollutants (POP). Recovered purge water was left in a 55-gallon drum in the locked metalstorage trailer on-site.

3.0 Data Quality Assurance/Quality Control

The primary purpose of the quality assurance/quality control (QA/QC) program is to meet thedata quality objectives (DQOs) for the Surface Water and Groundwater Monitoring Program asoutlined in the SC/MOM 100% Design Field Sampling Plan (FSP) and Quality AssuranceProject Plans (QAPP). Data collected during Q42/LTM-7 consists of Level I, III, and IV data.The QA/QC review examines both the quality of the samples being collected and the validity ofthe chemical analyses performed on the samples at the laboratory.

3.1 Quality of Samples Collected

Groundwater samples were collected using the EPA approved low flow sampling protocol(Appendix E). The sampling protocol utilizes stringent acceptance criteria with respect tostabilization of water quality parameters in the field. The physical groundwater parameters metthe acceptance criteria of the low flow sampling protocol, indicating that the collectedgroundwater samples were likely representative of the surrounding aquifer. If inconsistencies ofthe physical parameters were observed, these conditions were noted during the purging processwere recorded in the sampler’s field book. Occasionally, specific parameters are found to beinconsistent or the monitoring probe indicates error messages. In these instances, a backupmonitoring device is used to either confirm the observed measurements or to replace theinstrument probe that reported the erroneous reading. If several parameter readings appearerroneous, the monitoring is stopped; the meter/probe is recalibrated; and the purging is re-



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started. The instruments utilized during the Q42/LTM-7 sampling/monitoring event did notbehave abnormally during the sampling event.

3.2 Laboratory Data Validation and Review

Level III or IV data that fails to be properly validated is flagged in the laboratory reports andsummarized in the sections which follow. A review of the data is conducted with an appropriateresponse depending upon the following:

the magnitude of the rejection,

the data quality objectives (DQOs) for the data, and

the "value" of the data to the DQO.

Any deviations or rejected data are documented in the sections that follow, including thedevelopment of appropriate response activity, if necessary.

3.2.1 Laboratory Data Review

The 11 water samples collected during Q42/LTM-7, included groundwater (10), and one surfacewater sample, which were included in the data validation review.

The samples were submitted under chain of custody to Spectrum Analytical Inc. of Agawam,Massachusetts and analyzed by the following methods:

VOCs by EPA Method 8260C and;

Organic analyte N,N - dimethylformamide (DMF) by EPA Method 8270D.

3.2.2 Data Validation Summary of Findings

Spectrum Analytical conducted an internal data validation of the Q42/LTM-7 results. Review ofthe Spectrum Analytical laboratory data validation report by Tetra Tech with regard to VOCs(EPA Method 8260C) has indicated that the Q42/LTM-7 results are of acceptable quality for theDQOs as described in the SC/MOM 100% Design Sampling and Analysis Plan.

The trip blank was analyzed for VOCs (EPA Method 8260C) and the reported results did notdetect any analytes above the laboratory detection limit. The results indicate that the glasswareand the transport of the samples did not impart contamination to the water samples. The tripblank results suggest that the sampling of the groundwater and surfacewater likely represent siteconditions.

The VOC results (EPA Method 8260C) for the duplicate groundwater sample (B-9AID for B-9AI) indicate that the laboratory detected the same analytes and reported concentrations for those



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detected analytes within the same order of magnitude. Samples for B-8A-D and B-6A-D were re-run by the laboratory due to dilutions necessary to have analytes fall within the instrumentcalibration range. The results indicate that the qualitative analyses (analyte identification) and thequantitative analyses (concentrations reported are within acceptable relative percent difference)reported by the laboratory are likely to be acceptable for the samples analyzed.

The result reported for DMF in the groundwater sample collected from well B-9AI was flaggedas estimated due to the dilutions noted as necessary to minimize the effects of a co-elutinginterference. The co-eluting interference was not reported for the other groundwater samples andthe surface water sample.

The reported spike recoveries for key site analytes (1,1 DCA, TCE, cis 1,2 DCE) and thesurrogate recoveries for the method were reported as within the acceptable ranges for EPAMethod 8260C. The reported surrogate recoveries for site analyte DMF was reported as withinoverall method allowances for EPA Method 8270D, however, the results (based on the reportedrecoveries) were considered to have a potentially low bias. The lab did not find samples whichdid not meet the laboratory protocol for the analyte and analytical holding times. The followingparagraphs summarize the case narrative provided by Spectrum Analytical for the analytical dataand Tetra Tech’s review of the data. A copy of Spectrum Analytical case narratives are providedin Appendix F.

Samples were received in acceptable condition, at 2.8 degrees C, on ice, and in accordancewith sample handling, preservation and integrity guidelines.

Method Blank - No exceptions noted.

Calibration – For Method 8260C: For 1409096, certain analytes were calibrated by quadraticequation: 1,2,4 trichlorobenzene, 1,2 dibromo-3-chloropropane, 4-methyl-2-pentanone,naphthalene, trans-1,3-dichloropropene, trans-1,4-dichloro-2-butene, bromoform anddibromochloromethane. These compounds are not site contaminants of concern and were notreported as being detected in the samples. For S410947-ICVI, analyte percent recoverieswere outside of individual acceptance criteria for isopropylbenzene. This compound is not asite contaminant of concern and was not reported as being detected in the samples.

Laboratory Control Sample Results – For Method 8260C: For 1423608-BS/BSD there werereported recoveries outside of acceptable limits for specific compounds. Recoveries were outof acceptable range for ethanol (high bias). The high bias in the recovery for this compoundindicates that the lab instrument would likely report higher concentrations than what mayactually be present in the sample.

For 1423609-BS/BSD there were reported recoveries outside of acceptable limits for specificcompounds. Recoveries were out of acceptable range for ethanol (high bias). The high bias inthe recovery for this compound indicates that the lab instrument would likely report higherconcentrations than what may actually be present in the sample.



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For 1423746-BS/BSD there were reported recoveries outside of acceptable limits for specificcompounds. Recoveries were out of acceptable range for ethanol (high bias). The high bias inthe recovery for this compound indicates that the lab instrument would likely report higherconcentrations than what may actually be present in the sample.

Surrogate Recoveries – For Method 8260C: No exceptions were noted. For Method 8270D:One surrogate recovery was outside of control limits for nitrobenzene-d5. This exceptionapplied to only sample B-5DI. The data was accepted based on the valid recoveries of theremaining two surrogates.

Laboratory Control Samples – For Method 8260C: Analyte percent difference was outsideindividual acceptance criteria, but within overall method allowances for bromomethane, tert-amyl methyl ether, trans1,4-dichloro-2-butene and hexachlorobutadiene. Analyte percentdifference was outside of individual acceptance criteria but within overall method allowancesfor: carbon disulfide, dichlorodifluoromethane, di-isopropyl ether, ethyl tert-butyl ether,methyl tert-butyl ether and tert-butanol. These compounds are not site contaminants ofconcern and were not reported as being detected in the samples.

For Method 8260C: Dilutions were conducted on samples with high concentrations ofanalytes to be within instrument calibration range. Dilutions were conducted on samplesNBW-L, B5D-I, B8A-D, B9A-I, B12B-I, B6A-D and P-20.

For Method 8270D: The reporting limit for the DMF analyte was raised to account forinterference from a coeluting organic compound. This condition affected only thegroundwater sample from well B-9AI (and the duplicate sample B-9AI-D).

Matrix Spike (MS)/Matrix Spike Duplicate (MSD) Results – For Method 8260C: For1423608-MS1/MSD1 the QC spike recovery was outside the acceptance range forethanol, 2,2 dichloropropane, carbon tetrachloride, dichlorodifluoromethane, and trans-1,2-dichloroethene. The spike recovery was also outside the acceptance limits for the MSand/or MSD for bromomethane and di-isopropyl ether. The batch was accepted based onacceptable LCS recoveries. With the exception of trans-1,2dichloroethene, thesecompounds are not site contaminants of concern and were not reported as being detectedin the samples. It is noted that the recoveries reported for trans 1,2 dichloroethene hadrecoveries that suggest a high bias. Therefore the instrument is more likely to report ahigher concentration for this compound.

For 1423609-MS1/MSD1 the QC spike recovery was outside the acceptance range forethanol, 2,2 dichloropropane and dichlorodifluoromethane. The batch was accepted basedon acceptable LCS recoveries. These compounds are not site contaminants of concernand were not reported as being detected in the samples.

For S411361-CCV1 the analyte percent difference was outside individual acceptancecriteria but within overall method allowances for carbon disulfide and ethanol.



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For S411362-CCV1 the analyte percent difference was outside individual acceptancecriteria but within overall method allowances for ethyl tert-butyl-ether, methyl tert-butylether and ethanol.

For S411412-CCV1 the analyte percent difference was outside individual acceptancecriteria but within overall method allowances for carbon disulfide, ethanol, ethyl tert-butyl-ether, methyl tert-butyl ether, 4-methyl-2-pentanone and naphthalene.

3.3 Conclusion

The analytical data generated during the Q42/LTM-7 monitoring event is of acceptable qualityfor the DQOs as described in the Sampling and Analysis Plan. QC issues related to the analyseswere identified but were related to laboratory error, instrument tolerance and interference from acoeluting compound (only well B-9AI). The QC issues were not sufficient to indicate that thedata could not be used for an evaluation of current Site conditions. The data produced by thesampling activities, the analysis (VOCs) including any estimated values for DMF is ofacceptable quality.

4.0 Water Level Elevation Survey Results

Groundwater surface elevations measured on September 29, 2014 are presented in Table 1. Thisdata is also compared to historical groundwater levels collected from select LTM wells over theprevious sixteen quarters (Q26 through Q42) in Table 2.

4.1 Survey of Groundwater Monitoring Wells

On April 25, 2002, the groundwater monitoring wells at the Site were surveyed relative to anestablished benchmark elevation in the Site area (367.86 feet: boulder located 4 feet northwest oftelephone pole P165). The wells were surveyed due to concerns that modifications to wellcasings and/or standpipes during remedial activities may have altered the reference elevation ofthe wells. In addition, the well survey was conducted to establish (and mark) new referencepoints on each groundwater monitoring well (top of PVC or top of exterior casing) that may beused for future groundwater gauging events. Elevations of wells that were cut or otherwisealtered as a part of Site activities during the Summer of 2002 were re-surveyed on November 24,2002, and tied into the April 25, 2002 survey with back sight references to un-altered wellelevations. Monitoring wells that were replaced or installed in November 2003, were surveyedon November 21, 2003 and tied into the April 25, 2002 survey with back sight references fromun-altered well elevations.



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4.2 Groundwater Elevations

Potentiometric surface maps for groundwater in the overburden intermediate and bedrock unitswere interpreted from the September 29, 2014 water level gauging data for the Q42/LTM-7wells, and are presented on Figures 3 and 4, respectively. The groundwater potentiometricsurface contours were generated using a krigging algorithm. Krigging is a method ofinterpolation which predicts unknown values using know values recorded in the field data logs.The resolution contours for these figures are limited by the number of wells that were gaugedduring the Q42/LTM-7 gauging event.

The overburden water table (during the Q42/LTM-7) gauging event exhibited elevations andconditions similar to previously reported seasonal data for the Site during non-pumpingconditions. The inferred intermediate overburden potentiometric surface for Q42/LTM-7 (Figure3) indicated that groundwater flow in the overburden is in an east to south-easterly direction.There were no indications of groundwater mounding or depressions observed in the intermediateoverburden during this monitoring event.

The bedrock potentiometric surface map for the Q42/LTM-7 gauging event indicates that theinferred general groundwater flow trends toward the south-southeast (Figure 4). Historicalevaluations of groundwater movement through the Site’s bedrock included additional shallowbedrock wells not included in the Q42/LTM-7 evaluation. These historical gauging eventsindicate that regional groundwater flow occurs along the limited number of fractures within thebedrock which may not be represented on the limited potentiometric drawing for Q42/LTM-7.However, based on a review of recent and historical groundwater elevation data which isprovided in Table 2, groundwater elevations measured in Q42/LTM-7 for both the Siteoverburden and bedrock wells were comparable to previous quarterly/semi-annual monitoringevents.

5.0 Analytical Results

Groundwater samples for Q42/LTM-7 were collected from Site groundwater monitoring wellson September 30, 2014 and submitted to Spectrum Analytical on October 2, 2014 for laboratoryanalysis.

5.1 Water Quality Indicator Parameters

Water Quality Indicator Parameters were measured and recorded for the 11 sampled locationsduring Q42/LTM-7, including 10 monitoring wells and 1 surface water station. The final resultsof the water quality parameter measurements collected during the Q42/LTM-7 sampling eventare presented in Table 3. Measurements for the water quality parameters including pH, specificconductance, dissolved oxygen (DO), turbidity, oxidation/reduction potential (ORP), andtemperature were recorded during the low-flow purging of the wells. All measurements werecompleted using a Horiba U-52 water quality meter and flow-through cell unless otherwisenoted. Along with the water quality parameters, the groundwater purging rate and total



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drawdown measurements for each Q42/LTM-7 well were also recorded and these data arepresented in Table 3.

Our review of the water quality parameter data for Q42/LTM-7 indicates that the measurementsare generally consistent with ranges observed by previous and historical measurements. Somewells with extremely low hydraulic conductivities continue to show elevated concentrations ofdissolved oxygen related to the expenditure of hydrogen peroxide which suggests a lack ofgroundwater dilution. Wells observed with elevated dissolved oxygen concentrations during thismonitoring event included NBW-L and ODW-L. The Q42/LTM-7 water quality indicatorparameter data is graphically compared to historically monitored data in the figures and includedin Appendix B. The water quality parameter data for this sampling event are summarized below:

The final groundwater pH measurements obtained during Q42/LTM-7 ranged from 4.26(ODW-L) to 9.43 (B12-B-I). Generally, the measured pH in Site wells were withinapproximately 1 pH unit from the recorded pH range observed during the last groundwatersampling round.

The recorded specific conductance measurements during Q42/LTM-7 were within a rangefrom 52 Siemens per centimeter (52 S/cm) (QB-4) to 4,030 S/cm (B-9A-I). The priorobserved specific conductivity in well B-9A-I in Q41/LTM-6 was 1,930 S/cm. Whileelevated relative to other intermediate overburden wells, specific conductivity in well B-9AIcontinues to be below the value observed during Q36/LTM-1, which was reported as 10,624S/cm. This reading was taken following the 2002 lactate additions, and was likely due to thepresence of residual lactate in the well. The lower relative conductivity readings in well B-9A-I since October 2006 are believed to be indicative of the gradual return of wellgroundwater to background conductance levels observed prior to carbon source additions viadilution.

For the bedrock wells (Q42/LTM-7), specific conductance readings ranged from 459 S/cm(B-8A-D) to 1,400 S/cm (NBW-L) versus a range of 374 S/cm to 1,280 S /cm for Q41/LTM6. Prior observed readings during the Q37/LTM-2 monitoring event were noted as beingabove historical observations and were likely the result of hydrogen peroxide additions.These elevated readings that were reported during Q37/LTM-2 included: 1,642 S/cm in wellODW-L; 269 S/cm in well ODW-U; and 642 S/cm in well NBW-U. Based on theconductance readings observed prior to the addition of remedial additives (includingadditions of lactate, molasses, bromide, potassium permanganate and hydrogen peroxide)there is a correlation between the addition of a remedial additive and the elevatedconductance readings recorded in Site groundwater monitoring wells following thoseremedial additions at the Site. Conversely, the observed decrease in recorded conductancereadings since the 2005 remedial additive additions is a qualitative measure of the rate atwhich groundwater flow and the associated remedial additive dilution occurs in the vicinityof these wells with eventual return to equilibrium conditions for the Site groundwater withinthe vicinity of the well.

ORP readings observed during Q42/LTM-7 showed further stabilization of groundwatergeochemical conditions since the Q39/LTM-4 sampling event. Final ORP readings



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(Q42/LTM-7) ranged from negative 279 millivolts (mV) (P-20) to a positive 348 mV (NBW-L). For Q41/LTM-6, ORP readings ranged from negative 210 millivolts (mV) (P-20) to apositive 362 mV (NBW-L). In comparison, ORP readings collected during Q39/LTM-4ranged from negative 209 millivolts (mV) (P-20) to a positive 390 mV (ODW-L). ObservedORP readings for each well monitored during this monitoring event generally displayed adecreasing trend over those ORP values observed since the Q-37/LTM-2 monitoring eventwith an apparent achievement of likely asymptotic values for reducing conditions in thesubsurface. The overburden wells sampled in Q42/LTM-7 and Q41/LTM-6 each had anegative ORP reading (an indicator of reducing conditions). The bedrock wells continue toexhibit a decrease (move toward negative readings) in ORP readings which is likely relatedto the dilution/expenditure rate of high dissolved oxygen groundwater conditions created inthe subsurface via the 2005 hydrogen peroxide additions. It is expected that the bedrockaquifer water will eventually return to reducing conditions for each of the bedrock wells. Themajority of the overburden and bedrock wells had negative ORP readings and have showndecreases in ORP of 100mv or more since the Q37/LTM-2 monitoring event. Bedrock wellsODW-L and NBW-L each had observed positive ORP readings, indicating that residualdissolved oxygen resultant from the expenditure of hydrogen peroxide remains within thesubsurface at these wells, suggesting a slow rate of dilution. These observations in the deeperbedrock well samples are indicative of the extremely low hydraulic conductivities at depth atthe Site.

Final Dissolved Oxygen (DO) readings (Q42/LTM-7) ranged from 0.11 milligrams per liter(mg/L) (B-8A-D) to 13.78 mg/L in well NBW-L. DO readings ranged from 0.13 milligramsper liter (mg/L) (P-20) to 32.97 mg/L (well ODW-L) for Q41/LTM-6. DO readings in Siteoverburden and shallow bedrock wells have displayed a decreasing DO trend since theaddition of hydrogen peroxide in 2005 and are indicative of a return to reducing conditions(DO below 1.0 mg/L) via dilution. DO readings for the relatively deeper bedrock wellscouplet wells (ODW-L and NBW-L) remained elevated (12.71 mg/L and 13.78 mg/L),indicating that residual oxygen from the 2005 hydrogen peroxide additions remains in thesewells. The shallow bedrock couplets for these wells (ODW-U and NBW-U) had observedDO’s less than or approaching 1.0 mg/L. For Q42/LTM-7 and Q41/LTM-6, DO readings inthe shallow couplets for wells ODW and NBW showed lower DO concentrations which areapproaching the observed DO values observed for the sampled overburden and shallowbedrock wells. This observed condition suggests that DO concentration depletion/dilution inthese wells has proceeded at a slightly faster rate and is approaching what can be consideredbackground conditions based on the baseline conditions measured for the historical hydrogenperoxide addition events conducted in 2005.

Final turbidity readings in the wells ranged from 0.5 NTU (B-12B-I) to 28.4 NTU (P-20) forQ42/LTM-7. Turbidity readings in the wells ranged from 1.1 NTU (B-8A-D) to 21.7 NTU(P-20) for Q41/LTM-6. The observed turbidity readings were generally comparable tohistorical readings, with the exception of wells B9A-I and P-20, which were slightly higher.The turbidity readings were generally higher during Q42/LTM-7 than during Q41/LTM-6.This fluctuation in turbidity readings may likely be related to the variability in theinstruments and probe sensitivity (the Horiba U-20 (Q41 and prior Q41 events versus theHoriba U-52 used in Q42) than an overall change in groundwater conditions. The overall



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observed turbidity readings are consistent with turbidity readings measured during previoussampling rounds (since Q31).

5.2 Groundwater Analytical Results

Data generated by the Q42/LTM-7 sampling event indicates that 17 VOC analytes (shownbelow) and one semi-volatile organic compound (DMF) were detected in groundwater samples atconcentrations greater than or equal to the laboratory detection limit. Some VOC analytes hadreported laboratory detection limit above their corresponding Performance Standard(s). Of the17 detected and reported VOC analytes, 10 analytes were detected or were reported atconcentrations exceeding their corresponding Performance Standards. Detected VOCconcentrations that exceeded the Performance Standards in the Q42/LTM-7 samples are shownin the bold text below. For some of the wells, reported analyte laboratory detection limits(Overburden wells - vinyl chloride, 1,1 DCE, tetrachloroethene and tetrahydrofuran; bedrockwells- 1,1 DCE, trans 1,2 DCE, MEK, tetrahydrofuran, trichloroethene and tetrachloroethene)were greater than their applicable Performance Standard. When this occurs it is not possible toknow if the Performance Standard was exceeded or not, therefore, for the purposes of this report,a reported detection limit greater than the appropriate Performance Standard is considered aPerformance Standard exceedance.

1,1-Dichloroethane

1,1-Dichloroethene(DCE)

2-Butanone (MEK)

Carbon tetrachloride

Acetone

Chloroethane

Dimethylformamide(DMF)

Ethylbenzene

Methylene chloride

Tetrachloroethene

1,4 Dioxane

Tetrahydrofuran

Toluene

Tert-butyl alcohol

Trichloroethene

Vinyl Chloride

Xylenes

cis-1,2-Dichloroethene

trans-1-2-Dichlroethene (trans-DCE)

Napthalene

A summary of the compounds detected in the groundwater samples during Q42/LTM-7 ispresented in Table 4. Complete tabulated lists of the analytical results for groundwater andsurface water are provided in Appendix A. The laboratory analytical report is provided inAppendix F. Graphs depicting the historical contaminant concentrations for selected monitoringwells are presented in Appendices C and D. Maximum contaminant concentrations, frequency ofdetections and comparisons to the Performance Standards for groundwater samples inoverburden and bedrock are provided in Tables 5 and 6. Historical sampling results are providedin Tables 7 and 8.



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From the Q42/LTM-7 groundwater sample data, inferred plume extent maps (Figures 5 and 6)were prepared to illustrate the distribution of the most prevalent analytes (1,1-DCA, TCE, cis1,2-DCE and DMF) in the intermediate overburden groundwater and bedrock groundwateraquifers. The isoconcentration contours were inferred using the analyte data from wells sampledduring Q42/LTM-7.

Our general observations regarding the inferred plume maps include:

The configuration(s) of the contaminant isoconcentration contours in the intermediateoverburden and shallow bedrock aquifers indicate that the highest concentrations of the mostprevalent contaminant analytes are located predominantly along the central, eastern, andsoutheastern portions of the Site.

The intermediate overburden contaminant plume(s) that was inferred from the Q42/LTM-7data is presented as Figure 5. Detected concentrations of the target analytes suggest that 1,1-DCA continues to represent the largest contaminant plume area of the four selected analytesin the overburden aquifer. The Q42/LTM-7 data suggests that the 1,1-DCA plume (in theoverburden) extends through the central, south and east portions of the Site cap area and tothe south/southeast of the cap. The inferred TCE and cis 1,2-DCE plumes cover similar areasextending from the north central portion of the cap area to the area southeast of the cap nearQuiggle Brook. A comparatively small DMF plume area in the overburden exists to thesouth edge of the on-Site capped area proximate to well B-9 AI. The DMF concetrationsappear to have decreased below the 390 ug/L Performance Standard proximate to well B-12BI. Based on our comparison with the Q29 through Q41 inferred plume areas and thecontaminant plume areas inferred from the Q42/LTM-7 data, we conclude that the generalplume extent areas have remained stable and have exhibited evidence of shrinking due toapparent reductions in the contaminant concentrations that have been observed over time.This observation indicates that the contaminant plume(s) have remained nearly static inlocation over a monitoring period of approximately thirteen years. It should also be notedthat historical Spring season sampling rounds have shown site-wide reductions incontaminant concentrations, while historical Fall season sampling rounds have often shownmore elevated concentrations. During this Fall season sampling round (Q42/LTM-7),contaminant concentrations in the sampled overburden wells were generally reduced whencompared to the previous Fall season sampling round (Q41/LTM-6).

The bedrock plume that was inferred from the Q42/LTM-7 data is presented as Figure 6.Detected concentrations of the selected analytes suggest that the 1,1-DCA plume extendsfrom well B-6A-D to well ODW-U to the south and to well NBW-U to the southwest. Thedetected concentrations of TCE, cis-1,2-DCE (exceeds its Performance Standard proximateto well B-6AD) and DMF (below its Performance Standard – 390 ug/L) suggest that theirrespective inferred plume extent covers a comparatively smaller area that is generallycontained within the larger 1,1-DCA plume.

Both increases and decreases in the average detected VOC concentrations were observedbetween Q36/LTM-1 and Q42/LTM-7 in the groundwater samples collected from across theSite (overburden and bedrock). During this sampling period (Q42/LTM-7), decreases were



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observed in detected VOC concentrations since Q38/LTM-3 (Fall 2007). The site-wide trenddating back to Q30 and Q31 continues to indicate that VOC concentrations are graduallydecreasing and that the dissolved phase contaminant plumes in both the overburden andbedrock aquifers are stable. Sections 5.2.1 through 5.2.4 of this report provide additionaldetail for these observations. The detected VOC and DMF concentrations for Q42/LTM-7 inmost wells are below the detected VOC and DMF concentrations reported for Q31.

VOCs and DMF were not detected in the surface water sample collected from station QB-4above the laboratory detection limits for Q31 through Q42/LTM-7.

5.2.1 Dissolved 1,1-DCA

The inferred 1,1-DCA isoconcentration contours from the Q42/LTM-7 data in theoverburden suggest a plume configuration that is likely shrinking when compared to theinferred Q36/LTM-1 plume configuration for 1,1 DCA. The highest overburdenconcentrations have historically been observed on the eastern portion of the Site alongQuiggle Brook and in the central portion of the Site. The maximum reported concentration of1,1-DCA in the overburden during this sampling round was detected in well B-12B-I (1,860ug/L). Concentrations of 1,1-DCA reported in well B-12B-I have ranged between 2,300ug/L - Q34 (Fall 2003) and 2,800 ug/L - Q37/LTM-2 (Fall 2006). 1,1 DCA concentrationshave been reported as high as 3,800 ug/L in well B-9A-I (Q36/LTM-1, Fall 2004) in thecentral portion of the Site. However, reported 1,1 DCA concentrations in well B-9A-I havedecreased with reported concentrations of 360 ug/L in Q38/LTM-3 (Fall 2006), 168 ug/L inQ39/LTM-4 (Fall 2008) and less than 25 ug/L in Q41/LTM-6 and Q42/LTM-7.

The 1,1-DCA plume within the bedrock was inferred from the Q42/LTM-7 data to be anelongated oval trending in a north-south direction and widening with lower concentrations asit moves south. The bedrock wells B-6A-D, B-8A-D, NBW-U and ODW-U were used todelineate the bedrock plume. The maximum detected concentration of 1,1-DCA in thebedrock during Q42/LTM-7 was detected in well B-6A-D (2,420 ug/L). B-6A-D also had themaximum 1,1-DCA concentration observed in Q41/LTM-6 (2,500 ug/L), Q40/LTM-6 (2,970ug/L), Q39/LTM-4 (3,630 ug/L), Q38/LTM-3 (1,200 ug/L), Q37/LTM-2 (3,000 ug/L),Q36/LTM-1 (4,200 ug/L) and Q34 (3,300 ug/L). The concentrations of 1,1-DCA reported inwell NBW-U (9.8 ug/L), ODW-L (7.2 ug/L) and well ODW-U (6.7 ug/L) were above thePerformance Standard of 5 ug/L. The 1,1 DCA concentrations reported in wells NBW-U andODW-U during this sampling round were lower or nearly equal to the concentrationsreported for the samples collected during Q41/LTM-6 through Q38/LTM-3. 1,1 DCA wasreported in well ODW-L for Q42/LTM-7 after being reported as <5ug/L in the previoussampling rounds. The reported 1,1 DCA concentration also coincides with a significantreduction in the dissolved oxygen concentration (down from 32.97 mg/L to 12.51 mg/L)which indicates that residual peroxide may be expended and the well is returning toequilibrium site conditions. Historical data for well ODW-L has detected 1,1 DCA prior tothe 2005 peroxide additions at concentrations ranging from 57 ug/L (Q14) to 22 ug/L (Q33).Therefore the detection of 1,1 DCA in well ODW-L does not represent a new Site condition.



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Increases and decreases in the detected concentrations of 1,1-DCA were observed whencomparing the Q39/LTM-4 results to the Q42/LTM-6 results. The greatest increase indetected 1,1-DCA concentration from Q39/LTM-4 to Q41/LTM-6 was observed in thesamples from well B-5D-I (22.6 ug/L to 385 ug/L). We note that the reported 1,1 DCAconcentration for this well has increased since installation (prior to Q34) and exhibits anincreasing trend Q41/LTM-6 (203 ug/L) and Q40/LTM-5 (284 ug/L). Historical 1,1 DCAconcentrations for the B-5 intermediate well have ranged from 690 ug/L(Q23) to 360 ug/L(Q33). The greatest decrease in detected 1,1-DCA concentration (Q39/LTM-4 versusQ42/LTM-7 ) was observed in well NBW-U (665 ug/L to 9.80 ug/L).

5.2.2 Dissolved TCE

The inferred TCE isoconcentration contours for Q42/LTM-7 in the overburden indicate anearly oval plume with the highest concentrations observed in the central portion of thecapped area. The highest concentration of TCE in the overburden was detected in thegroundwater sample collected from well P-20 (259 ug/L). The reported TCE concentrationwas an increase versus the Q41/LTM-6 TCE concentration (97.5 ug/L).

A TCE plume within the bedrock has been observed to be limited in horizontal extent.Reported TCE concentrations above the laboratory detection limit were not reported duringthis sampling round. The inferred plume map is based on the reported laboratory detectionlimits.

In general, decreases were observed in the detected concentration of TCE when comparingthe Q39/LTM-4 results (439 ug/L) to the Q42/LTM-7 results (259 ug/L).

5.2.3 Dissolved 1,2-DCE

The inferred 1,2-DCE isoconcentration contours in the overburden also indicate a nearly ovalplume with the highest concentrations observed in the central portion of the capped area. The1,2 DCE plume appears to be shrinking and reported concentrations indicate the plume isstable. The highest concentration of 1,2-DCE in the overburden was detected in well P-20(1,590 ug/L). The 1,2 DCE plume exceeds it Performance Standard proximate to wells P-20and B-12BI.

The 1,2-DCE plume within the bedrock was observed primarily in the southern andsoutheastern portions of the Site with concentrations likely exceeding its PerformanceStandard proximate to well B-6AD. Concentrations of 1,2-DCE were reported in bedrockwell B-6A-D during Q42/LTM-7 (118 ug/L - 1,2-DCE), which is above the 1,2 DCEPerformance Standard of 70 ug/L. Concentrations of 1,2-DCE were 315 ug/L for Q41/LTM-6. The groundwater samples collected from well B-6A-D also had the highest reported 1,2-DCE concentration for the Q41/LTM-6 through Q34 sampling events with 1,2 DCEconcentrations ranging from 315 ug/L to 2,500 ug/L.



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In general, decreases in the detected concentrations of 1,2-DCE were observed whencomparing the Q39/LTM-4 results to the Q42/LTM-7 results. The greatest decrease in 1,2-DCE concentrations from Q39/LTM-4 to Q42/LTM-7 was observed in well B-6A-D (1,380ug/L to 118 ug/L). The 1,2 DCE concentrations in well B-6A-D show a decreasing trendover time (Q37/LTM-2 - 2,100 ug/L; Q38/LTM-3 - 620 ug/L; Q39/LTM-4 - 1,380 ug/LQ40/LTM-5 - 867 ug/L and Q41/LTM-6 - 315ug/L).

5.2.4 Dissolved DMF

The inferred DMF isoconcentration contours in the overburden indicate a generally round oroval-shaped plume observed on the eastern portion of the Site. The highest concentration ofDMF in the overburden for Q42/LTM-7 was detected in well B-9A-I (714J ug/L). Inprevious sampling events, well B-12B-I has had the highest overburden DMF concentrations,with concentrations during the Q39/LTM-4 through Q34 sampling events ranging from 556ug/L to 1,500 ug/L.

The inferred DMF isoconcentration contours in the bedrock indicate a generally oval-shapedplume observed on the southern portion of the Site. The highest concentration of DMF in thebedrock for Q42/LTM-7 was detected in well B-6A-D (101 ug/L). Historically well B-8A-D(158 ug/L). Well B-8A-D also has had the highest bedrock DMF concentration for theQ41/LTM-6 through Q34 sampling events with concentrations ranging from 138 ug/L to1,800 ug/L. Well B-8A-D had a reported DMF concentration of 65.9 ug/L for Q42/LTM-7.DMF concentrations exceeding its Performance Standard were not reported for the samplescollected during Q42/LTM-7.

Decreases in the detected concentrations of DMF were observed when comparing theQ39/LTM-4 results to the Q41/LTM-6 results. The greatest decreases in DMF concentrationsfrom Q39/LTM-4 to Q41/LTM-6 were observed in well B-8A-D (556 ug/L to 65.9 ug/L) andB-12B-I (556 ug/L to 280 ug/L).

5.3 Surface Water Analytical Results

The surface water sample QB-4 was also analyzed for VOCs and DMF. VOCs and DMF werenot detected in the QB-4 water sample above the laboratory method detection limits.

A Summary of Analytical Constituents Detected in surface and groundwater samples is providedin Table 4. The laboratory analytical report is provided in Appendix F.

5.4 ITW-1 Water Sample Analytical Results

Water from well ITW-1 was not sampled during this groundwater monitoring event. Well ITW-1was last sampled by EPA as described in Sections 1.4 and 2.4.



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6.0 Summary

Tetra Tech has completed the forty-second groundwater sampling and monitoring event andseventh long term monitoring event (Q42/LTM-7) on September 30, 2014. As part of theQ42/LTM-7 activities, water levels were recorded at 27 monitoring wells including the 10 selectmonitoring wells that were sampled during the Q42/LTM-7 sampling event. A total of 10groundwater samples and one surface water sample were collected during the Q42/LTM-7 event.These samples plus one QA/QC sample (one trip blank) and one duplicate sample (B-9AI-D),were submitted for laboratory analysis. The representative water samples were collected via lowflow sampling methodology from the 10 groundwater monitoring wells. A grab sample wascollected from the surface water sample location. Laboratory analysis of the Q42/LTM-7monitoring well and surface water samples was completed by Spectrum Analytical of Agawam,Massachusetts for volatile organic compounds (VOCs) by USEPA Method 8260C and analysisfor a semi-volatile organic analyte N,N-dimethyl-formamide (DMF) by USEPA Method 8270D.

6.1 Data Usability

The Q42/LTM-7 groundwater samples were sampled using the low flow sampling protocol asdescribed in Appendix E. During purging, stabilization of the measured parameters wasaccomplished for each of the sampled wells.

The analytical data generated during the Q42/LTM-7 monitoring event is of acceptable qualityfor the DQOs as described in the Sampling and Analysis Plan. VOCs and surrogate recoverieswere within of the acceptable laboratory QC limits for the 13 water samples that were analyzedby the lab which include one trip blank, the duplicate sample, 10 groundwater wells, and onesurface water sample.

6.2 Groundwater Elevations

Groundwater flow in the Site overburden and bedrock aquifers is described in the previouslysubmitted Site Conceptual Site Model (CSM). The CSM defined the occurrence of groundwaterin the overburden and bedrock separately and generally defined two aquifers (with smallsubdivisions) separated by a confining layer. The dominant factor that controls overburdengroundwater flow is regional topography. Overburden groundwater west of Quiggle Brookconsistently flows east toward Quiggle Brook and overburden groundwater east of QuiggleBrook flows west toward Quiggle Brook. The dominant feature that controls groundwater flowin the bedrock is the local structural fold, associated fractures and bedrock lithology type.Bedrock groundwater flows generally southeast toward Quiggle Brook down-dip and alongfoliation fractures related to the Site structural fold. Limited groundwater flows occur down-strike to the southwest. In addition, artesian conditions have been observed in some intermediateand bedrock wells located adjacent to Quiggle Brook.

Potentiometric surface maps for the overburden, intermediate and bedrock stratigraphic unitswere interpreted from the September 29, 2014 water level elevations measured in the Q42/LTM-7 wells using a krigging method. Based on the wells gauged, the overburden groundwater



Tetra Tech

23

potentiometric surface during the Q42/LTM-7 gauging event was similar to those observedduring previous sampling rounds for the Summer/Fall season for non-pumping conditions. Thedepth to groundwater ranged from approximately 3.09 feet (well B12 CS) to 18.74 feet (wellMW-14S) below the ground surface in the intermediate overburden; and 1.14 feet (well B12-AD) to 20.97 feet (well ODW-U) below ground surface in the bedrock aquifers. The inferredoverburden groundwater contours for Q42/LTM-7 indicated a general easterly to southeasterlydirection of groundwater flow across the Site. The groundwater elevation data in bedrock for theQ42/LTM-7 gauging event resulted in an inferred groundwater flow toward the south andsoutheast. The Q42/LTM-7 gauging data and potentiometric surface maps generated from theQ42/LTM-7 gauging data generally support the Conceptual Site Model of groundwater flow inthe overburden and bedrock aquifers.

There were no observations of groundwater mounding or depressions observed in the overburdenor bedrock wells measured in the Q42/LTM-7, as reported during groundwater pumpingactivities (2005). Based on a review of recent and historical groundwater elevation data, whichare provided in Table 2, groundwater elevations measured in Q42/LTM-7 for both overburdenand bedrock aquifers show seasonal fluctuations that are comparable to previous Fall seasonmonitoring events.

6.3 Contaminant Distribution

Contaminant distribution in the overburden and bedrock is described in the previously submittedSite Conceptual Site Model (CSM). Inferred contaminant plume maps for the detected analytes1,1-DCA, TCE, total 1,2-DCE and DMF were prepared for the intermediate overburden andbedrock groundwater units.

The inferred overburden plumes that were inferred from the Q42/LTM-7 data are presented onFigure 5. Detected concentrations of the target analytes suggest that concentrations of 1,1-DCAcontinue to represent the largest contaminant plume area out of the four selected analytes in theoverburden aquifer. The Q42/LTM-7 data suggests that the 1,1-DCA plume in the overburdenextends through the central, south and east portions of the Site cap area and to thesouth/southeast of the cap. The TCE and 1,2-DCE plumes cover similar areas (within the larger1,1 DCA plume) with the highest concentrations of TCE and 1,2-DCE located in the northernportion of the capped area. A smaller DMF plume (also contained within the larger 1,1 DCAplume) in the overburden was observed to the east of the cap proximate to wells B-9AI and B-12B-I.

VOC contaminant concentrations in the overburden are declining as a general trend and havebeen substantially reduced by the SC/MOM. The overburden aquifer VOC/SVOC contaminantplumes are expected to gradually migrate in the down-gradient (east/southeast) direction,however the VOC/SVOC plume migration appears to be occurring at a very slow rate such thatlittle change or shift in the VOC/SVOC plume location and plume areas has been observed overthe post-SC/MOM shutdown period of nearly 14 years. Due to the apparent low velocity of theSite groundwater flow through the till, sorption of VOC/SVOC contaminants to the till matrix isbelieved to be retarding the migration of the VOC/SVOC plumes. In the areas of the Site with



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24

the lowest groundwater flow velocities (till with clays and silts), sorption may be strong enoughto negate advective transport entirely and slow the diffusion and partitioning of the VOCs intothe groundwater from the soil matrix. Though this Site condition mitigates the migration of theVOC/SVOC contaminant plumes, these sorptive properties of the overburden soils may extendthe amount of time required to flush the VOC/SVOC contaminants from the overburden aquiferand thereby reduce their concentrations to meet the Performance Standards for the Site. Thiscondition graphically results in a stable contaminant isoconcentration contour map in bothoverburden and bedrock aquifers. Dilution and localized areas of microbial degradation of theVOC/SVOC contaminants are expected to further reduce the overall contaminant concentrationsin the overburden. However, the reductions due to these material processes will also occur at aslow rate due to the soil types in the overburden.

The bedrock plume that was inferred from the Q42/LTM-7 data is presented on Figure 6.Detected concentrations of the selected analytes suggest that the 1,1-DCA plume extends fromwell B-6A-D to well ODW-U to the south and to well NBW-U to the west. The detectedconcentrations of TCE, total 1,2-DCE and DMF suggest that their respective plumes encompassa smaller area that is generally contained within the larger 1,1-DCA plume area.

Detected concentrations of the VOCs/SVOCs within the shallow bedrock contaminant plumesuggest that the VOC/SVOC plume extends beyond the area of the contaminated overburdensoils to the south and southeast of the Site cap. The shallow bedrock VOC/SVOC contaminantplumes inferred from the Q42 sampling data are nearly identical in size and location to shallowbedrock plumes inferred from the Q30 through the Q41 sample events covering the previousthirteen years. The Site wide trend dating back to Q30 and Q31 indicates that VOC/SVOCconcentrations are gradually decreasing in the shallow bedrock and have been substantiallyreduced by the remediation activities at the Site. Migration of the VOC/SVOC contaminantplume(s) within the shallow bedrock is expected to primarily occur within the weathered strata atthe bedrock surface, and to a lesser degree, through the available fractures in the more competentshallow bedrock. Potential contaminant migration and groundwater flow in theshallow/weathered bedrock is anticipated to be towards Quiggle Brook (east/southeast) along theweathered bedrock thickness and along the strike and dip surfaces of the shallow bedrockfractures.

VOCs were not detected in the surface water sample collected from QB-4 above the laboratorymethod detection limits for Q31 through Q42/LTM-7. DMF was not detected in the surfacewater sample for QB-4. Impacts to Quiggle Brook and/or down-gradient receptors have not beenidentified by the LTM sampling rounds conducted to date.

September 29, 2014

Well

Location

Monitored

Stratigraphic

Zone

Reference

Elevation (Ft.

MSL)

Reference

Point

Measured Depth

to Groundwater

(Ft.)

Groundwater

Elevation (Ft.

MSL)

B-5D-I Intermediate 352.66 Steel 5.87 346.79

B-6A-D Bedrock 355.51 PVC 7.51 348.00

B-8A-D Bedrock 359.98 PVC 11.76 348.22

B-9A-I Intermediate 371.94 PVC 16.96 354.98

B-12B-I Intermediate 349.51 Steel 3.12 346.39

NBW-L Bedrock 358.58 Steel 13.84 344.74

NBW-U Bedrock 358.58 Steel 9.84 348.74

ODW-L Bedrock 356.92 Steel 18.93 337.99

ODW-U Bedrock 356.92 Steel 20.97 335.95

P-20 Intermediate 370.32 Steel 14.64 355.68

MW-14S Intermediate 373.46 Steel 18.74 354.72

P-17 Bedrock 371.5 Steel 17 354.5

OW-1-1S Intermediate 363.16 Steel 10.44 352.72

OW-1-1D Bedrock 362.08 Steel 12.06 350.02

OW-1-1M Intermediate 362.44 Steel 7.31 355.13

B8-BI Intermediate 359.68 Steel 10.58 349.1

B5-ES Shallow 352.38 Steel 7.54 344.84

B5-CD Intermediate 370.32 Steel 5.7 364.62

GT-18 Shallow 351.8 Steel 5.32 346.48

B12-AD Bedrock 348.59 Steel 1.14 347.49

B12-CS Intermediate 348.8 Steel 3.09 345.71

OW-3-3M Intermediate 350.34 Steel 4.22 346.12

GT-16 Intermediate 370.32 Steel 6.4 363.92

P-27 Bedrock 353.59 Steel 5.02 348.57

P-28 Intermediate 351.37 Steel 4.59 346.78

P-29 Bedrock 354.19 Steel 4.19 350

B6-BI Intermediate 355.06 Steel 4.73 350.33

Table 1

Union Chemical Company

Hope, Maine

GROUNDWATER ELEVATION DATA

Groundwater Monitoring

FR - FrozenNA- Well not gauged+ - indicates that actual water table elevation exceedsthe indicated elevation due to artesian conditions orgroundwater seeping from the base of the well standpipe

Well Location Date

Groundwater

Elevation (Ft. MSL)

Change in Water Table

Elevation (Ft.)B-5B-I 11/8/1999 346.59 NAB-5B-I 4/8/2000 NA NAB-5B-I 10/23/2000 340.65 -5.94B-5B-I 4/29/2001 343.43 2.78B-5B-I 10/29/2001 344.31 0.88B-5B-I 4/22/2002 343.77 -0.54B-5B-I 11/7/2002 342.75 -1.02B-5B-I 3/31/2003 348.64 5.89B-5D-I* 11/10/2003 345.03 -3.61B-5D-I* 4/13/2004 349.44 4.41B-5D-I* 11/8/2004 349.33 -0.11B-5D-I* 10/19/2006 349.24 -0.09B-5D-I* 11/15/2007 348.6 -0.64B-5D-I* 11/12/2008 349.52 0.92B-5D-I* 11/5/2010 349.91 0.39B-5D-I* 8/22/2012 347.76 -2.15B-5D-I* 9/29/2014 346.79 -0.97* B-5 series wells replaced prior to November 2003 (Q34) gauging/sampling9.33 121 5.15

B-6A-D 11/8/1999 350.36 NAB-6A-D 4/8/2000 351.81 1.45B-6A-D 10/23/2000 346.91 -4.9B-6A-D 4/29/2001 351.84 4.93B-6A-D 10/29/2001 345.48 -6.36B-6A-D 4/22/2002 352.17 6.69B-6A-D 3/31/2003 352.44 0.27B-6A-D 11/10/2003 351.14 -1.3B-6A-D 4/13/2004 351.31 0.17B-6A-D 11/8/2004 350.38 -0.93B-6A-D 10/19/2006 350.65 0.27B-6A-D 11/15/2007 352.19 1.81B-6A-D 11/12/2008 351.21 -0.98B-6A-D 11/5/2010 352.14 0.93B-6A-D 8/22/2012 348.11 -4.03B-6A-D 9/29/2014 348 0.11

B-8A-D 11/8/1999 350.2 NAB-8A-D 4/8/2000 350.68 0.48B-8A-D 10/23/2000 344.83 -5.85B-8A-D 4/29/2001 350.95 6.12B-8A-D 10/29/2001 343.18 -7.77B-8A-D 4/22/2002 350.8 7.62B-8A-D 11/7/2002 348.71 -2.09B-8A-D 3/31/2003 351.71 3B-8A-D 11/10/2003 350.39 -1.32B-8A-D 4/13/2004 350.95 0.56B-8A-D 11/8/2004 349.64 -1.31B-8A-D 10/19/2006 352.28 2.64B-8A-D 11/15/2007 354.45 4.81B-8A-D 11/12/2008 353.98 -0.47B-8A-D 11/5/2010 355.12 1.14B-8A-D 8/22/2012 349.88 -5.24B-8A-D 9/29/2014 348.22 -1.66

Hope, Maine

Comparative Water Table Elevations

Groundwater Monitoring - Q42/LTM-7

Table 2


+ indicates that actual water level exceedes refrence elevation due to artesian conditions

Well Location Date

Groundwater

Elevation (Ft. MSL)


Elevation (Ft.)

Hope, Maine



Table 2


B-9A-I 11/8/1999 358.06 NAB-9A-I 4/8/2000 358.53 0.47B-9A-I 10/23/2000 355.4 -3.13B-9A-I 4/29/2001 358.13 2.73B-9A-I 10/29/2001 351.23 -6.9B-9A-I 4/22/2002 358.48 7.25B-9A-I 11/7/2002 356.53 -1.95B-9A-I 3/31/2003 359.4 2.87B-9A-I 11/10/2003 357.94 -1.46B-9A-I 4/13/2004 357.67 -0.27B-9A-I 11/8/2004 357.15 -0.52B-9A-I 10/19/2006 357.51 0.36B-9A-I 11/15/2007 358.32 1.17B-9A-I 11/12/2008 357.71 -0.61B-9A-I 11/5/2010 358.83 1.12B-9A-I 8/22/2014 355.59 -3.24B-9A-I 9/29/2014 354.98 -0.61

B-12-B-I 11/8/1999 341.78 NAB-12-B-I 4/8/2000 348.35 6.57B-12-B-I 10/23/2000 343.62 -4.73B-12-B-I 4/29/2001 348.1 4.48B-12-B-I 10/29/2001 346.7 -1.4B-12-B-I 4/22/2002 348.02 1.32B-12-B-I 11/7/2002 348.11 0.09B-12-B-I 3/31/2003 348.47 0.36B-12-B-I 11/10/2003 348.73 0.26B-12-B-I 4/13/2004 347.98 -0.75B-12-B-I 11/8/2004 347.47 -0.51B-12-B-I 10/19/2006 347.82 -0.16B-12-B-I 11/15/2007 348.31 0.33B-12-B-I 11/12/2008 348.05 -0.26B-12-B-I 11/5/2010 347.89 -0.16B-12-B-I 8/22/2012 346.96 -0.93B-12-B-I 9/29/2014 346.39 -0.57

NBW-L 4/13/2004 348.7 NANBW-L 11/8/2004 347.69 -1.01NBW-L 10/19/2006 347.2 -1.5NBW-L 11/15/2007 348.92 0.22NBW-L 11/12/2008 348.04 -0.88NBW-L 11/5/2010 348.56 0.52NBW-L 8/22/2012 344.83 -3.73NBW-L 9/29/2014 344.74 -0.09

NBW-U 4/13/2004 352.12 NANBW-U 11/8/2004 351.53 -0.59NBW-U 10/19/2006 353.29 1.76NBW-U 11/15/2007 353.94 2.41NBW-U 11/12/2008 353.53 -0.41NBW-U 11/5/2010 352.9 -0.63NBW-U 8/22/2012 350.08 -2.82NBW-U 9/28/2014 348.74 -1.34

ODW-L 4/13/2004 340.92 NAODW-L 11/8/2004 339.11 -1.81ODW-L 10/19/2006 338.51 -0.6ODW-L 11/15/2007 340.75 1.64ODW-L 11/12/2008 340.46 -0.29ODW-L 11/5/2010 342.3 1.84ODW-L 8/22/2014 338.02 -4.28ODW-L 9/29/2014 337.99 -1.03

ODW-U 4/13/2004 340.06 NAODW-U 11/8/2004 338.49 -1.57ODW-U 10/19/2006 337.86 -0.63ODW-U 11/15/2007 339.86 1.37ODW-U 11/12/2008 339.19 -0.67+ indicates that actual water level exceedes refrence elevation due to artesian conditions

Well Location Date

Groundwater

Elevation (Ft. MSL)


Elevation (Ft.)

Hope, Maine



Table 2


ODW-U 11/5/2010 340.66 1.47ODW-U 8/22/2012 335.87 -4.79ODW-U 9/29/2014 335.95 0.08

P-20 4/13/2004 358.36 NA

P-20 11/8/2004 357.46 -0.9

P-20 10/19/2006 357.77 0.31

P-20 11/15/2007 359.11 1.65

P-20 11/12/2008 358.13 -0.98

P-20 11/5/2010 359.72 1.59

P-20 8/22/2012 352.37 -7.35

P-20 9/29/2014 355.68 3.31+ - Indicates actual water level exceeds that of reference elevation due to artesian conditions

+ indicates that actual water level exceedes refrence elevation due to artesian conditions

Well

Location

LTM-1

Well

Perox

Add.

Well

DatePurge Rate

ml/min

Total

Drawdown

(ft)

Temperature

(OC)

Conductivity

(uS/cm)pH

Oxidation/Reduction

Potential (mV)

Dissolved

Oxygen (mg/l)

Turbidity

(ntu)

B-5D-I x 9/30/2014 40 2.52 9.81 0.272 8.07 -168 0.47 4.6B-6A-D x x 9/30/2014 40 2.11 10.19 0.473 8.00 -217.0 1.13 9.0B-8A-D x x 9/30/2014 30 2.29 9.37 0.459 8.02 -216 0.11 3.4B-9A-I x x 9/30/2014 40 3.43 11.08 4.030 8.04 -164.0 0.54 14.8B-12B-I x 9/30/2014 40 0.32 10.26 0.590 9.43 -205 0.12 0.5NBW-L x x 9/30/2014 30 3.01 9.47 1.400 4.33 305 13.78 4NBW-U x x 9/30/2014 30 3.14 9.52 0.544 7.25 -174 0.17 3.1ODW-L x x 9/30/2014 30 3.13 10.13 0.879 4.26 348.0 12.51 8.3ODW-U x x 9/30/2014 30 0.52 9.73 0.607 6.31 29.0 1.14 14.0P-20 x x 9/30/2014 40 1.25 11.15 0.415 9.02 -279.0 0.17 28.4QB-4 x 9/30/2014 NA NA 16.60 0.052 6.96 134 5.90 3.4

Hope, Maine

Table 3

WATER QUALITY INDICATOR PARAMETERSSurface Water and Groundwater Monitoring - Q42/LTM-7

Union Chemical Company Superfund Site

NA-parameter not measuredS - sample too silty for turbidity reading* Reading from backup DO meter**Interference expected to be impacting parameter Page 5

TABLE 4SUMMARY OF CONSTITUENTS DETECTED

Surface Water and Groundwater Monitoring - Q42/LTM-7Union Chemical Superfund Site

Hope, Maine

Page: 6 of 11

Sample Location B5DI B6AD B8AD B9AI B12 BI NBW-U ODW-L ODW-U VP 20 QB 4 NBW-L Trip BlankLaboratory ID SB97410-06 SB97410-08 SB97410-03 SB97410-09&11 SB97410-07 SB97410-05 SB97410-02 SB97410-01 SB97410-10 SB97410-12 SB97410-04 SB97410-13

CONSTITUENT Sample Date 9/30/2014 9/30/2014 9/30/2014 9/30/2014 9/30/2014 9/30/2014 9/30/2014 9/30/2014 9/30/2014 9/30/2014 9/30/2014 9/30/2014

Acetone 50U 1000U 200U 842 500U 10U 50U 10U 500U 10U 50U 10U2-Butanone (MEK) 50U 1000U 200U 960 500U 10U 10U 10U 500U 10U 50U 10UChloroethane 10U 200U 40U 276 200U 2U 2.7 2U 100U 2U 10U 2U1,1-Dichloroethane 385 2420 480 25U 1860 9.8 7.2 6.7 50U 1U 5U 1U1,1-Dichloroethene 5U 100U 20U 25U 50U 1U 1U 1U 50U 1U 5U 1Ucis-1,2-Dichloroethene 5U 118 20U 25U 92 1U 1U 1U 1590 1U 5U 1Utrans-1,2-Dichloroethene 5U 100U 20U 25U 50U 1U 1U 1U 870 1U 5U 1UEthylbenzene 5U 2990 20U 25U 142 1U 1U 1U 50U 1U 5U 1UNaphthalene 5U 100U 20U 25U 50U 1U 1U 1U 50U 1U 5U 1UToluene 5U 100U 20U 69 50U 1U 1U 1U 50U 1U 5U 1UTrichloroethene 5U 100U 20U 25U 50U 1U 1U 1U 259 1U 5U 1UVinyl chloride 5U 114 20U 25U 50U 1U 1U 1U 50U 1U 5U 1Um,p-Xylene 10U 2200 40U 50U 100U 2U 2U 2U 100U 2U 10U 2UTetrahydrofuran 23.2 200U 30.8 50U 100U 2U 2U 2U 100U 2U 10U 2UTert-Butanol / butyl alcohol 50U 1000U 200U 250U 500U 10U 626 38.4 500U 10U 751 10U1,4-Dioxane 389 2000U 400U 500U 1000U 30.8 20U 20U 1000U 20U 100U 20U

Dimethyl formamide 12.3 101 65.9 714J 280 5.1U 5.15U 5.1U 5.15U 5.32U 5.1U NT

SW846 8260B (µg/l)

SW846 8270C (µg/l)

TABLE 5 - CONSTITUENT MAXIMUM CONCENTRATION FOUND AND PERFORMANCE STANDARDS - OVERBURDEN WELLSSurface Water and Groundwater Monitoring -Q42/LTM-7

Union Chemical Company Superfund SiteHope, Maine

Constituent Detection1Average Performance Performance Q42 Maximum Q42 Location Q41 Location Q40 Location of

Concentration2Standard Standard Reported of of Maximum

(ug/L) (ug/L) Exceedences3Concentration Maximum Maximum (conc, ug/L)

(ug/L) (conc, ug/L) (conc, ug/L)

vinyl chloride 0 / 4 32.5 2 4 / 4 50U P-20/B-12B-I P-20 (50U) P-20chloroethane 1 / 4 146.5 NA NA 276 B-9A-I B-9A-I (2199) B-9A-I (221)acetone 1 / 4 473 NA NA 842 B-9A-I B-9A-I (860) B-9A-I (1030)1,1-dichloroethene 0/ 4 32.5 7 3 / 4 50U B-12B-I/P-20 B-12B-I(57.5) B-12B-I (57)trans-1,2-dichloroethene 1 / 4 237.5 100 1 / 4 870 P-20 P-20(700) P-20 (670)1,1-dichloroethane 2 / 4 580 5 4 / 4 1860 B-12B-I B-12B-I (1750) B-12B-I (1670)2-butanone (MEK) 1 / 4 502.5 170 3 / 4 960 B-9A-I B-9A-I(1060) B-9A-I (1190)cis-1,2-dichloroethene 2 / 4 428 70 2 / 4 1590 P-20 P-20(1220) P-20(1830)tetrahydrofuran (THF) 1 / 4 68.3 70 2 / 4 100U B-12B-I/P-20 B-12B-I/P-20(100U) B-5D-Itrichloroethene 1 / 4 84.75 5 3 / 4 259 P-20 P-20(97.5) P-20 (108)4-methyl-2-pentanone (MIBK) 0 / 4 325 NA NA 500U B-12B-1/P-20 B-12B-I/P-20(500U) B-12B-I/P-20toluene 1 / 4 43.5 2000 0 / 4 69 B-9A-I B-9A-I (42.8) B-9A-I (53.8)tetrachloroethene 0 / 4 32.5 5 3 / 4 50U B-12B-I/P-20 B-12B-I/P-20(50U) B-12B-1/P-20ethylbenzene 1 / 4 55.5 700 0 / 4 142 B-12B-I B-12B-I (154) B-12B-I (120)total xylenes 0 / 4 65 10000 0 / 4 100U B-12B-I B-12B-I(100U) B-12B-IDimethylformamide 3 / 4 252.85 390 1 / 4 714J B-9A-I B-9A-I (931J) B-12B-I (121)

NOTES:1Frequency of detection indicates the number of wells in which a constituent was

detected over the number of wells sampled for each analyte.2Average Concentration calculated using the typical detection limit if the compound tested

was not detected.3Performance Standard Exceedences indicate the number of wells in which the

constituents reported concentration or Method Detection Limit exceeded theconstituents Performance Standard over the number of wells sampled for each analyte.

NA = Maine Maximum Exposure Guideline or EPA Maximum Contaminant Levelstandards are not available for this compound

J = The reported result is an estimate.

TABLE 6 - CONSTITUENT MAXIMUM CONCENTRATION FOUND AND PERFORMANCE STANDARDS - BEDROCK



Hope, Maine

Constituent Detection1Average Performance Performance Q42 Maximum Q42 Location Q41 Location of Q40 Location Q39 Location of Q38 Location of

Concentration2Standard Standard Reported of Maximum of Maximum Maximum

(ug/L) (ug/L) Exceedences3Concentration Maximum Maximum (conc, ug/L) (conc, ug/L)

(ug/L)

vinyl chloride 1 / 6 23.7 2 3 / 6 114 B-6A-D B-6A-D (151) B-6A-D (350) B-6A-D (729) B-6A-D (130)

chloroethane 1 / 6 42.8 NA NA 200U B-6A-D B-6A-D (200U) B-8A-D ODW-L (3.2) B-6A-D (20U)

acetone 0 / 6 220 NA NA 117 NBW-L NBW-L (117) NBW-L(194) NBW-L (414) NBW-L (280)

1,1-dichloroethene 0 / 6 21.3 7 2 / 6 100U B-6A-D B-6A-D 100U) B-6A-D(138) B-6A-D (228) B-8A-D DUP (190)

methyl t-butyl ether (MTBE) 0 / 6 13 NA NA 50U B-6A-D B-6A-D (100U) B-6A-D B-6A-D (25U) B-6A-D(20U)

trans-1,2-dichloroethene 0 / 6 21.3 100 1 / 6 100U B-6A-D B-6A-D (100U) B-6A-D B-6A-D (25.8) B-6A-D (67)

1,1-dichloroethane 4 / 6 488.1 5 5 / 6 2420 B-6A-D B-6A-D (2500) B-6A-D(2970) B-6A-D (3630) B-6A-D (1200)

2-butanone (MEK) 0 / 6 205 170 2 / 6 1000U B-6A-D B-6A-D (1000U) B-6A-D B-6A-D B-6A-D (100U)

cis-1,2-dichloroethene 1 / 6 24.3 70 1 / 6 118 B-6A-D B-6A-D (315) B-6A-D(867) B-6A-D (1380) B-6A-D (620)

tetrahydrofuran (THF) 1 / 6 41.1 70 1 / 6 200U B-6A-D B-6A-D (200U) B-6A-D B-6A-D B-8A-D DUP (88)

trichloroethene 0 / 6 20.7 5 2 / 6 100U B-6A-D B-6A-D (100U) B-6A-D B-8A-D (11) B-6A-D (37)

4-methyl-2-pentanone (MIBK) 0 / 6 196.7 NA NA 1000U B-6A-D B-6A-D (1000U) B-6A-D B-6A-D B-6A-D (100U)

toluene 0 / 6 21.3 2000 0 / 6 100U B-6A-D B-6A-D (100U) B-6A-D B-6A-D (25.8) B-6A-D (20U)

tetrachloroethene 0 / 6 21.3 5 2 / 6 100U B-6A-D B-6A-D (100U) B-6A-D B-6A-D B-6A-D (20U)

ethylbenzene 1 / 6 503 700 1 / 6 2990 B-6A-D B-6A-D (3150) B-6A-D(3060) B-6A-D (3120) B-6A-D (750)

total xylenes 1 / 6 376.0 10000 0 / 6 2200 B-6A-D B-6A-D (2390) B-6A-D(2190) B-6A-D (2060) B-6A-D (460)

Dimethylformamide 2 / 6 31.2 390 0 / 6 101 B-6A-D B-8A-D (158J) B-8A-D(138) B-8A-D (556) B-8A-D (1100)

NOTES:1Frequency of detection indicates the number of wells in which a constituent was

detected over the number of wells sampled for each analyte.2Average Concentration calculated using the typical detection limit if the compound tested

was not detected.3Performance Standard Exceedences indicate the number of wells in which the

constituents reported concentration or typical Method Detection Limit exceeded the

constituents Performance Standard over the number of wells sampled for each analyte.

NA = Maine Maximum Exposure Guideline or EPA Maximum Contaminant Level

standards are not available for this compound

TABLE 7 - COMPARITIVE QUARTERLY GROUNDWATER SAMPLING RESULTS

Surface Water and Ground Water Monitoring - Q42/LTM-7


Hope, Maine

Monitoring Well Location: B-5B-I B-5B-I B-5B-I B-5B-I B-5B-I B-5D-I B-5D-I B-5D-I B-5D-I B-5D-I B-5D-I B-5D-I B-5D-I B-5D-I B-5D-I

Quarter: Q29 Q30 Q31 Q32 Q33 Q34 Q35 Q36/LTM-1 Spring 06 Q37/LTM-2 Q38/LTM-3 Q39/LTM-4 Q40/LTM-5 Q41/LTM-6 Q42/LTM-7

(all results in ug/L) rep well*

dimethylformamide, N, N- 100U 500 700 360J 430 140 50U 50U 50U 94 5OU 62.5U 9.33J 101J 12.3

dichloroethane, 1,1- 250 210 430 370J 360 91 120 4 240 270 300 22.6 284 203 385

dichloroethylene, 1,1- 3.2 3 8 6J 7 1U 1 1U 1U 3 3 1U 2.5 5U 5U

dichloroethene, cis-1,2 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 5U 5U

dichloroethene, trans-1,2 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 5U 5U

ethylbenzene 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 5U 5U

methyl ethyl ketone (MEK) 10U 10U 10U 10UJ 10U 10 10U 10U 10U 10U 10U 10U 10U 50U 50U

methylene chloride 5U 5U 5U 5UJ 5U 5U 5U 5U 5U 5U 5U 5U 2U 10U 10U

tetrachloroethylene 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 5U 5U

toluene 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 5U 5U

trichloroethene 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 5U 5U

m&p xylenes NA NA 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 2U 2U 10U 10U

o-xylene NA NA 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 5U 5U

total xylenes 2U 2U 4U 4UJ 4U 4U 4U 4U 4U 4U 4U 3U 3U 15U 15U

trichloroethane, 1,1,1 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 5U 5U

vinyl chloride 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 5U 5U

chloroethane 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 2U 5.2 10U 10U

NOTES:

# = Constituent in more then one test method. Maximum concentration or minimum detection limit reported

<? = Not detected, detection limit unknown

NA = Not Applicable, no sample results available ORGANIC AND INORGANIC DATA QUALIFIERS

INORGANIC DATA QUALIFIERS J= The associated numerical value is an estimated quantity

B= Reported value is <CDL, but >IDL D=The analyte was identified in an analysis at a secondary dilution factor

ORGANIC DATA QUALIFIERS R = Rejected value

B= The analyte was also identified in the trip blank U = The analyte was not detected above the laboratory reporting limit

* Well B-5B-I was replaced between Q33 and Q34

h/project/2240/Q42 Tables 7 & 8/B-5D-I




Hope, Maine

Monitoring Well Location: B-6A-D B-6A-D B-6A-D B-6A-D B-6A-D B-6A-D B-6A-D B-6A-D B-6A-D B-6A-D B-6A-D B-6A-D B-6A-D B-6A-D B-6A-D


(all results in ug/L)

dimethylformamide, N, N- 100U NA NA NA NA NA NA 480 890 94 5OU 252 76.9J 102J 101

dichloroethane, 1,1- 140 3000D 2000 NA 2200 4000 3300 4200 5200 270 300 3630 2970 2500 2420

dichloroethylene, 1,1- 2.9 240 180 NA 220 400 370 420 510 3 3 228 138 100U 100U

dichloroethene, cis-1,2 42 1600D 1000 NA 1300 2500 2200 2400 3500 2U 2U 1380 867 315 118

dichloroethene, trans-1,2 2U 12 20U NA 10U 20U 20U 20U 56 2U 2U 25.8 100U 100U 100U

ethylbenzene 2U 37 140 NA 620 1100 1300 1600 1700 2U 2U 3120 3060 3150 3150

methyl ethyl ketone (MEK) 10U 10U 100U NA 50U 100U 100U 100U 100U 100U 100U 250U 1000U 1000U 1000U

methylene chloride 5U 5U 50U NA 20U 50U 50U 50U 50U 50U 50U 5U 200U 200U 200U

tetrachloroethylene 2U 2U 20U NA 10U 20U 20U 20U 20U 2U 2U 1U 100U 100U 100U

toluene 2U 9 20U NA 10 20 20 20 27 2U 2U 25.8 100U 100U 100U

trichloroethene 9.6 39 40 NA 40 60 60 60 69 2U 2U 25U 100U 100U 100U

m&p xylenes NA NA 60 NA 490 650 850 960 940 1100 2U 2060 2190 2390 2200

o-xylene NA NA 20U NA 10U 20U 20U 20U 20U 2U 2U 25U 100U 100U 100U

total xylenes 2U 38 80U NA 500 670 870 280 960 4U 4U 2085 2290 2490 2200

trichloroethane, 1,1,1 2U 2U 20U NA 10U 20U 20U 20U 20U 2U 2U 1U 100U 100U 100U

vinyl chloride 2U 14 20 NA 30 60 70 160 250 2U 2U 729 354 151 114

chloroethane 2U 20U NA 10U 20U 20U 20U 20U 20U 20U 50U 200U 200U 200U

NOTES:








h/project/2240/Q42 Tables 7 & 8/B-6A-D




Hope, Maine

Monitoring Well Location: B-8A-D B-8A-D B-8A-D B-8A-D B-8A-D B-8A-D B-8A-D B-8A-D B-8A-D B-8A-D B-8A-D B-8A-D B-8A-D B-8A-D B-8A-D



dimethylformamide, N, N- 100U 3300 2600 1400J 1300 1800 770 800 480 94 5OU 556 138J 158J 65.9

dichloroethane, 1,1- 73 590D 690 690J 420 510 300 450 430 270 300 833 665 516 480

dichloroethylene, 1,1- 1.4 170 220 230J 150 170 120 130 110 3 3 182 20U 20U 20U

dichloroethene, cis-1,2 2U 45 40 60J 40 40 30 30 2U 2U 2U 87 20U 20U 20U


ethylbenzene 2U 12 20 20J 20 20 10 10 6 2U 2U 10U 20U 20U 20U

methyl ethyl ketone (MEK) 10U 10U 50U 350J 50U 50U 50U 50U 10U 10U 50U 100U 200U 200U 200U



toluene 2U 25 20 30J 20 20 10 10 2U 2U 2U 10U 20U 20U 20U

trichloroethene 2U 19 20 20J 10 20 10 10U 13 2U 2U 11 20U 20U 20U

m&p xylenes NA NA 20 20J 20 20 10 10 2U 2U 2U 20U 40U 40U 40U

o-xylene NA NA 10 10J 10 10 10U 10U 2U 2U 2U 10U 20U 20U 20U

total xylenes 2U 24 30 30J 30 30 20 20 4U 4U 4U 30U 60U 60U 60U


vinyl chloride 2U 3 10U 10UJ 10U 10U 10U 10U 3 2U 2U 16.1 20U 20U 20U

chloroethane 2U 10U 10UJ 10U 10U 10U 10U 2U 2U 10U 20U 40U 40U 40U

NOTES:








h/project/2240/Q42 Tables 7 & 8/B-8A-D




Hope, Maine

Monitoring Well Location: B-9A-I B-9A-I B-9A-I B-9A-I B-9A-I B-9A-I B-9A-I B-9A-I B-9A-I B-9A-I B-9A-I B-9A-I B-9A-I B-9A-I B-9A-I



dimethylformamide, N, N- 100U NA NA NA NA NA NA 180J 50U 94 5OU 125U 103U 931J 714J

dichloroethane, 1,1- 2700 4400 3800 1300J 1700 2200J 3100 3800J 670 270 300 168 181 25U 28.2

dichloroethylene, 1,1- 10U 80 90 22J 20 5UJ 10U 10UJ 5U 3 3 5U 20U 25U 25U

dichloroethene, cis-1,2 20U 2000 1800 390J 420 10J 20U 20UJ 31 2U 2U 6.4 20U 25U 25U

dichloroethene, trans-1,2 20U 20U 20U 10UJ 10U 10UJ 20U 20UJ 10U 2U 2U 5U 20U 25U 25U

ethylbenzene 20U 20U 20U 10UJ 30 20J 30 30J 40 2U 2U 22.7 22.8 25U 33.8

methyl ethyl ketone (MEK) 100U 100 1700 410J 1000 2400 DJ 2900 4600J 1100 1000 2600J 1280J 1190 1060 960

methylene chloride 50U 50U 50U 20UJ 20U 20UJ 50U 50UJ 50U 25U 50J 5U 40U 50U 50U

tetrachloroethylene 20U 20U 20U 10UJ 10U 10UJ 20U 20UJ 10U 2U 2U 1U 20U 25U 25U

toluene 20U 40 20 20J 40 40J 80 90J 68 2U 2U 41.6 53.8 42.8 69

trichloroethene 20U 280 200 80J 50 20J 20U 20UJ 18 2U 2U 5.6 20U 25U 25U

m&p xylenes NA NA 20U 10J 40 20J 50 40J 45 41 2U 27 40U 50U 50U

o-xylene NA NA 20U 10J 20 10J 20 20UJ 19 2U 2U 9.8 20U 25U 25U

total xylenes 20U 20U 40U 20J 60 30J 70 60J 64 4U 4U 36.8 60U 75U 75U

trichloroethane, 1,1,1 100 120 30 20J 10 10UJ 20U 20UJ 20U 2U 2U 1U 20U 25U 25U

vinyl chloride 20U 20U 240 50J 90 10UJ 20U 20UJ 10U 2U 2U 5U 20U 25U 25U

chloroethane 20U 20U 10UJ 10U 10UJ 20U 100J 370 670 480J 300 221 199 276

NOTES:








h/project/2240/Q42 Tables 7 & 8/B-9A-I




Hope, Maine

Monitoring Well Location: B-12B-I B-12B-I B-12B-I B-12B-I B-12B-I B-12B-I B-12B-I B-12B-I B-12B-I B-12B-I B-12B-I B-12B-I B-12B-I B-12B-I B-12B-I



dimethylformamide, N, N- 100U 1300 2000 470J 1200 1400 1400 1000 1700 94 5OU 556 121J 173J 280

dichloroethane, 1,1- 2300 2200 3000D 2800J 2300 2300 2300 D 2700 2900 270 300 2210 1670 1750 1860

dichloroethylene, 1,1- 120 180 320 190J 180 200 2300 240 270 3 3 114 57 57.5 50U

dichloroethene, cis-1,2 590 760 1100 890J 580 640 740 650 830 2U 2U 376 216 152 92

dichloroethene, trans-1,2 20U 20U 10U 20UJ 10U 10U 10U 20U 14 2U 2U 25U 50U 50U 50U

ethylbenzene 120 120 210 180J 190 260 340 230 400 2U 2U 178 120 154 142

methyl ethyl ketone (MEK) 270 100 240 600J 490 440 570 700 120 80 100U 250U 500U 500U 500U



toluene 20U 20U 30 30J 30 50 70 60 72 2U 2U 25U 50U 50U 50U

trichloroethene 28 40 50 40J 30 30 30 20 36 2U 2U 28.8 50U 50U 50U

m&p xylenes NA NA 120 120J 150 240 350 220 300 380 2U 60 100U 100U 100U

o-xylene NA NA 60 50J 60 100 130 80 130 2U 2U 25U 50U 50U 50U

total xylenes 130 20 180 170J 210 340 480 300 430 4U 4U 85 150U 150U 150U


vinyl chloride 20U 20 40 40J 40 40 50 40 52 2U 2U 32 50U 50U 50U

chloroethane 20U 10 100J 160 210 200 170 190 170 110 58 100U 100U 100U

NOTES:








h/project/2240/Q42 Tables 7 & 8/B-12B-I

TABLE 7 - COMPARITIVE QUARTERLY GROUNDWATER SAMPLING RESULTSSurface Water and Ground Water Monitoring - Q41/LTM-6


Monitoring Well Location: NBW-L NBW-L NBW-L NBW-L NBW-L NBW-L NBW-L NBW-L NBW-L NBW-L

Quarter: Q34 Q35 Q36/LTM-1 Spring 06 Q37/LTM-2 Q38/LTM-3 Q39/LTM-4 Q40/LTM-5 Q41/LTM-6 Q42/LTM-7


dimethylformamide, N, N- 100U NA 50U 50U 50U 50U 62.5U 5.38U 5.1U 5.1U

dichloroethane, 1,1- 2U 2U 2U 2U 2U 14 5U 5U 5U 5U

dichloroethylene, 1,1- 1U 1U 1U 1U 1U 1U 5U 5U 5U 5U

dichloroethene, cis-1,2 2U 2U 2U 2U 2U 2U 5U 5U 5U 5U

dichloroethene, trans-1,2 2U 2U 2U 2U 2U 2U 5U 5U 5U 5U

ethylbenzene 2U 2U 2U 2U 2U 2U 5U 5U 5U 5U

methyl ethyl ketone (MEK) 10U 10U 10U 10U 10U 10U 50U 50U 50U 50U

methylene chloride 5U 5U 5U 5U 5U 5U 5U 10U 10U 10U

tetrachloroethylene 2U 2U 2U 2U 2U 2U 1U 5U 5U 5U

toluene 2U 2U 2U 2U 2U 2U 5U 5U 5U 5U

trichloroethene 2U 2U 2U 2U 2U 2U 5U 5U 5U 5U

m&p xylenes 2U 2U 2U 2U 2U 2U 10U 10U 10U 10U

o-xylene 2U 2U 2U 2U 2U 2U 5U 5U 5U 5U

total xylenes 4U 4U 4U 4U 4U 4U 15U 15U 15U 15U

trichloroethane, 1,1,1 2U 2U 2U 2U 2U 2U 1U 5U 5U 5U

vinyl chloride 2U 2U 2U 2U 2U 2U 5U 5U 5U 5U

chloroethane 2U 2U 2U 2U 2U 2U 10U 10U 10U 10U

NOTES:








h/project/2240/Q42 Tables 7 & 8/NBW-L



Monitoring Well Location: NBW-U NBW-U NBW-U NBW-U NBW-U NBW-U NBW-U NBW-U NBW-U NBW-U

Quarter: Q34 Q35 Q36/LTM-1 Spring 06 Q37/LTM-2 Q38/LTM-3 Q39/LTM-4 Q40/LTM-5 Q41/LTM-6 Q42/LTM-7


dimethylformamide, N, N- 100U NA 50U 50U 50U 50U 62.5U 5.38U 5.05U 5.1U

dichloroethane, 1,1- 2 4 7 2U 5 2U 12.7 12.4 9.6 9.8

dichloroethylene, 1,1- 1U 1U 1U 1U 1U 1U 1U 1U 1U 1U

dichloroethene, cis-1,2 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U

dichloroethene, trans-1,2 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U

ethylbenzene 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U

methyl ethyl ketone (MEK) 10U 10U 10U 10U 10U 10U 10U 10U 10U 10U

methylene chloride 5U 5U 5U 5U 5U 5U 5U 2U 2U 2U

tetrachloroethylene 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U

toluene 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U

trichloroethene 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U

m&p xylenes 2U 2U 2U 2U 2U 2U 2U 2U 2U 2U

o-xylene 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U

total xylenes 4U 4U 4U 4U 4U 4U 3U 3U 3U 3U

trichloroethane, 1,1,1 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U

vinyl chloride 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U

chloroethane 2U 2U 2U 2U 2U 2U 2U 2U 2U 2U

NOTES:








h/project/2240/Q42 Tables 7 & 8/NBW-U




Hope, Maine

Monitoring Well Location: ODW-L ODW-L ODW-L ODW-L ODW-L ODW-L ODW-L ODW-L ODW-L ODW-L ODW-L ODW-L ODW-L ODW-L ODW-L



dimethylformamide, N, N- 100U NA NA NA NA NA NA 50U 50U 94 5OU 62.5U 5.26U 5.1U 5.15U

dichloroethane, 1,1- 28 35 31 28J 22 19 23 26 2U 270 300 6.3 5U 5U 7.2

dichloroethylene, 1,1- 1U 1U 1U 1UJ 1U 1U 1U 1U 1U 3 3 1U 5U 5U 1U

dichloroethene, cis-1,2 12 16 15 16J 13 11 14 12 2U 2U 2U 1.9 5U 5U 1U



methyl ethyl ketone (MEK) 10U 10U 10U 10UJ 10U 10U 10U 10U 10U 10U 10U 10U 50U 50U 10U



toluene 2U 2U 12 28J 14 14 16 7 2U 2U 2U 2.4 5U 5U 1U

trichloroethene 2U 2 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 5U 5U 1U






chloroethane 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 3.2 5U 5U 2.7

NOTES:








h/project/2240/Q42 Tables 7 & 8/ODW-L




Hope, Maine

Monitoring Well Location: ODW-U ODW-U ODW-U ODW-U ODW-U ODW-U ODW-U ODW-U ODW-U ODW-U ODW-U ODW-U ODW-U ODW-U ODW-U



dimethylformamide, N, N- 100U NA NA NA NA NA NA 50U 50U 94 5OU 62.5U 5.26U 5.1U 5.1U

dichloroethane, 1,1- 15 23 NA 19J NA NA NA 30 27 270 300 8.6 6.4 6.9 6.7

dichloroethylene, 1,1- 1U 1U NA 1UJ NA NA NA 1U 1U 3 3 1U 1U 1U 1U

dichloroethene, cis-1,2 2U 6 NA 13J NA NA NA 2 4 2U 2U 1U 1U 1U 1U

dichloroethene, trans-1,2 2U 2U NA 2UJ NA NA NA 2U 2U 2U 2U 1U 1U 1U 1U

ethylbenzene 2U 2U NA 2UJ NA NA NA 2U 2U 2U 2U 1U 1U 1U 1U

methyl ethyl ketone (MEK) 10U 10U NA 10UJ NA NA NA 10U 10U 10U 10U 10U 10U 10U 10U

methylene chloride 5U 5U NA 5UJ NA NA NA 5U 5U 5U 5U 5U 2U 2U 2U

tetrachloroethylene 2U 2U NA 2UJ NA NA NA 2U 2U 2U 2U 1U 1U 1U 1U

toluene 2U 2U NA 2UJ NA NA NA 2U 2U 2U 2U 2.9 1U 1U 1U

trichloroethene 2U 2 NA 2UJ NA NA NA 2U 2U 2U 2U 1U 1U 1U 1U

m&p xylenes NA NA NA 2UJ NA NA NA 2U 2U 2U 2U 2U 2U 2U 2U

o-xylene NA NA NA 2UJ NA NA NA 2U 2U 2U 2U 1U 1U 1U 1U

total xylenes 2U 2U NA 4UJ NA NA NA 4U 4U 4U 4U 3U 3U 3U 3U

trichloroethane, 1,1,1 2U 2U NA 2UJ NA NA NA 2U 2U 2U 2U 1U 1U 1U 1U

vinyl chloride 2U 2U NA 2UJ NA NA NA 2U 2U 2U 2U 1U 1U 1U 1U

chloroethane 2U 2U NA 2UJ NA NA NA 2U 2U 2U 2U 2U 2U 2U 2U

NOTES:








h/project/2240/Q42 Tables 7 & 8/ODW-U



Monitoring Well Location: P-20 P-20 P-20 P-20 P-20 P-20 P-20 P-20 P-20 P-20 P-20 P-20

Quarter: Q28 Q33 Q34 Q35 Q36/LTM-1 Spring 06 Q37/LTM-2 Q38/LTM-3 Q39/LTM-4 Q40/LTM-5 Q41/LTM-6 Q42/LTM-7


dimethylformamide, N, N- 100U NA NA NA 50U 50U 50U 50U 62.5U 5.15U 5.1U 5.15U

dichloroethane, 1,1- 5U 10U NA NA 20U 55 45 10U 5U 50U 50U 50U

dichloroethylene, 1,1- 10U 5U NA NA 10 2 5U 8 5 50U 50U 50U

dichloroethene, cis-1,2 150 2000 NA NA 3600 420 1500 3200 2600J 1630 1220 1590

dichloroethene, trans-1,2 61 480 NA NA 1500 180 570 1400 920 670 700 870

ethylbenzene NA 10U NA NA 20U 2U 10U 10U 5U 50U 50U 50U

methyl ethyl ketone (MEK) NA 50U NA NA 100U 10U 50U 50U 50U 500U 500U 500U

methylene chloride NA 20U NA NA 50U 50U 25U 25 5U 100U 100U 100U

tetrachloroethylene 5U 10U NA NA 20U 2U 10U 10U 1U 50U 50U 50U

toluene NA 10U NA NA 20U 2U 10U 10U 5U 50U 50U 50U

trichloroethene 13 1300 NA NA 2400 210 570 1000 439 108 97.6 259

m&p xylenes NA 10U NA NA 20U 2U 10U 10U 10U 100U 100U 100U

o-xylene NA 10U NA NA 20U 2U 10U 10U 5U 50U 50U 50U

total xylenes NA 20U NA NA 40U 4U 20U 20U 60U 150U 150U 150U

trichloroethane, 1,1,1 6U 10U NA NA 20U 20U 10U 10U 1U 50U 50U 50U

vinyl chloride 62 60 NA NA 210 63 110 170 103 50U 50U 50U

chloroethane 15U 10U NA NA 20U 2U 10U 10U 10U 500U 500U 500U

NOTES:








h/project/2240/Q42 Tables 7 & 8/P-20

TABLE 8 - COMPARITIVE QUARTERLY SURFACE WATER SAMPLING RESULTS



Hope, Maine

Monitoring Well Location: QB-4 QB-4 QB-4 QB-4 QB-4 QB-4 QB-4 QB-4 QB-4 QB-4 QB-4 QB-4 QB-4 QB-4 QB-4



dimethylformamide, N, N- 100U NA NA NA NA NA NA NA 50U 94 5OU 62.5U NA NT 5.32U

dichloroethane, 1,1- 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 270 300 1U 1U 1U 1U

dichloroethylene, 1,1- 1U 1U 1U 1UJ 1U 1U 1U 1U 1U 3 3 1U 1U 1U 1U

dichloroethene, cis-1,2 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U



methyl ethyl ketone (MEK) 10U 10U 10U 10UJ 10U 10U 10U 10U 10U 10U 10U 10U 10U 10U 10U



toluene 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U

trichloroethene 2U 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 1U 1U 1U 1U






chloroethane 2U 2U 2UJ 2U 2U 2U 2U 2U 2U 2U 2U 2U 2U 2U

NOTES:








h/project/2240/Q42 Tables 7 & 8/QB-4 (TABLE 8)

Date:

Job No.:

0

Sheet No.

Scale in Feet

Sheet Title

Project Title

File Name:

One Grant StreetFramingham, MA 01701-9005

www.tetratechrizzo.com508.903.2000

Union ChemicalCompany

Hope, Maine

Site Plan - 2014

100

2420

10/30/2013

Existing_Monitoring_Wells_Figure.dwg

Appendix A

GROUNDWATER AND SURFACE WATER

ANALYTICAL RESULTS

TABLE A-1

GROUNDWATER ANALYTICAL RESULTS

Volatile Organic Compounds -Method 8260C

Surface and Groundwater Monitoring -Q42/LTM-7

Union Chemical Superfund Site

Hope, Maine

SAMPLE ID B-5D-I B-6A-D B-8A-D B-9A-ID B-9A-I B-12B-I NBW-U NBW-L ODW-L ODW-U P-20 QB-4 Trip Blank

DATE 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14

CONSTITUENT RESULT TYPE Primary Primary Primary Duplicate Primary Primary Primary Primary Primary Primary Primary Primary

dichlorodifluoromethane ug/L 10U 200U 20U 25U 25U 100U 2U 10U 2U 2U 100U 2U 2U

chloromethane ug/L 10U 100U 40U 50U 50U 100U 2U 10U 1U 1U 100U 2U 2U

vinyl chloride ug/L 5U 114 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

bromomethane ug/L 5U 200U 20U 50U 50U 50U 2U 5U 1U 1U 100U 1U 1U

chloroethane ug/L 10U 100U 20U 276 268 100U 2U 10U 2.7 2U 100U 2U 2U

trichlorofluoromethane ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

1,1-dichloroethene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

methylene chloride ug/L 10U 200U 20U 50U 50U 100U 2U 5U 2U 2U 100U 2U 2U

carbon disulfide ug/L 10U 200U 20U 50U 50U 100U 2U 5U 2U 2U 100U 2U 2U

methyl t-butyl ether (MTBE) ug/L 5U 100U 20U 25U 1U 50U 1U 5U 1U 1U 50U 1U 1U

trans-1,2-dichloroethene ug/L 5U 50U 20U 25U 25U 50U 1U 5U 1U 1U 870 1U 1U

1,1-dichloroethane ug/L 385 2420 447 28.2 27.8 1860 9.8 5U 7.2 6.7 50U 1U 1U

2-butanone (MEK) ug/L 50U 500U 100U 956 960 500U 10U 50U 10U 10U 500U 10U 10U

2,2-dichloropropane ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

cis-1,2-dichloroethene ug/L 5U 118 20U 25U 25U 92 1U 5U 1.1 1U 1590 1U 1U

chloroform ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

bromochloromethane ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

tetrahydrofuran (THF) ug/L 23.2 200U 30.8 50U 50U 100U 2U 10U 2U 2U 100U 2U 2U

1,1,1-trichloroethane ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

1,1-dichloropropene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

carbon tetrachloride ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

1,2-dichloroethane ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

benzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

trichloroethene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 259 1U 1U


bromodichloromethane ug/L 2.5U 50U 10U 12.5U 12.5U 25U 0.5U 2.5U 0.5U 0.5U 25U 0.5U 0.5U

dibromomethane ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U4-methyl-2-pentanone (MIBK) ug/L 50U 1000U 100U 250U 250U 500U 10U 50U 10U 10U 500U 10U 10U

NA = Not analyzed

J = The pH of the sample was outside of the required preservation range.

TABLE A-1





Hope, Maine


DATE 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14


cis-1,3-dichloropropene ug/L 2.5U 50U 10U 12.5U 12.5U 25U 0.5U 2.5U 0.5U 0.5U 25U 0.5U 0.5U

toluene ug/L 5U 100U 20U 65.8 69 50U 1U 5U 1U 1U 50U 1U 1U

trans-1,3-dichloropropene ug/L 2.5U 50U 10U 12.5U 12.5U 25U 0.5U 2.5U 0.5U 0.5U 25U 0.5U 0.5U

2-hexanone ug/L 50U 1000U 100U 250U 250U 500U 10U 50U 10U 10U 500U 10U 10U

1,1,2-trichloroethane ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U


tetrachloroethene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

dibromochloromethane ug/L 2.5U 50U 10U 12.5U 12.5U 25U 0.5U 2.5U 0.5U 0.5U 25U 0.5U 0.5U

1,2-dibromoethane ug/L 2.5U 50U 10U 12.5U 12.5U 25U 0.5U 2.5U 0.5U 0.5U 25U 0.5U 0.5U

chlorobenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

1,1,1,2-tetrachloroethane ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

ethylbenzene ug/L 5U 2860 20U 25 33.8 142 1U 5U 1U 1U 50U 1U 1U

m&p-xylenes ug/L 10U 2110 40U 50U 50U 100U 2U 10U 2U 2U 100U 2U 2U

o-xylene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

styrene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

bromoform ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

isopropylbenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

1,1,2,2-tetrachloroethane ug/L 2.5U 50U 10U 12.5U 12.5U 25U 0.5U 2.5U 0.5U 0.5U 25U 0.5U 0.5U

1,2,3-trichloropropane ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

n-propylbenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

bromobenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

1,3,5-trimethylbenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

2-chlorotoluene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

4-chlorotoluene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

tert-butylbenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

1,2,4-trimethylbenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

sec-butylbenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

1,3-dichlorobenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

4-isopropyltoluene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U1,4-dichlorobenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

NA = Not analyzed


TABLE A-1





Hope, Maine


DATE 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14


1,2-dichlorobenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

n-butylbenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

1,2-dibromo-3-chloropropane ug/L 10U 200U 40U 50U 50U 100U 2U 10U 2U 2U 100U 2U 2U

1,2,4-trichlorobenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

hexachlorobutadiene ug/L 2.5U 50U 10U 12.5U 12.5U 25U 0.5U 2.5U 0.5U 0.5U 25U 0.5U 0.5U

naphthalene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1U

1,2,3-trichlorobenzene ug/L 5U 100U 20U 25U 25U 50U 1U 5U 1U 1U 50U 1U 1Utert-butanol ug/L 50U 1000U 200U 250U 250U 500U 10U 751 626 38.4 500U 10U 10U

1,4 Dioxane ug/L 389 1000U 400U 500U 500U 1000U 30.8 100U 20U 20U 1000U 20U 20U

acetone ug/L 50U 500U 100U 815 842 500U 10U 50U 10U 10U 500U 10U 10U

NA = Not analyzed


TABLE A-2SURFACE WATER ANALYTICAL RESULTSVolatile Organic Compounds -Method 8260C

Semi-volatile Organic Compound (DMF) -8270Surface and Groundwater Monitoring -Q42/LTM-7

Union Chemical Superfund SiteHope, Maine

SAMPLE ID QB-4DATE 9/30/14

CONSTITUENT RESULT TYPE Primary

dichlorodifluoromethane ug/L 2Uchloromethane ug/L 2Uvinyl chloride ug/L 1Ubromomethane ug/L 2Uchloroethane ug/L 2Utrichlorofluoromethane ug/L 1U1,1-dichloroethene ug/L 1Umethylene chloride ug/L 5Ucarbon disulfide ug/L 5Umethyl t-butyl ether (MTBE) ug/L 1Utrans-1,2-dichloroethene ug/L 2U1,1-dichloroethane ug/L 1U2-butanone (MEK) ug/L 10U2,2-dichloropropane ug/L 2Ucis-1,2-dichloroethene ug/L 1Uchloroform ug/L 1Ubromochloromethane ug/L 0.5Utetrahydrofuran (THF) ug/L 10U1,1,1-trichloroethane ug/L 1U1,1-dichloropropene ug/L 1Ucarbon tetrachloride ug/L 1U1,2-dichloroethane ug/L 1Ubenzene ug/L 1Utrichloroethene ug/L 1U1,2-dichloropropane ug/L 1Ubromodichloromethane ug/L 0.5U

dibromomethane ug/L 1U4-methyl-2-pentanone (MIBK) ug/L 10U

NA = Not analyzed






cis-1,3-dichloropropene ug/L 0.5Utoluene ug/L 1Utrans-1,3-dichloropropene ug/L 0.5U2-hexanone ug/L 10U1,1,2-trichloroethane ug/L 1U1,3-dichloropropane ug/L 1Utetrachloroethene ug/L 1Udibromochloromethane ug/L 0.5U1,2-dibromoethane ug/L 0.5Uchlorobenzene ug/L 1U1,1,1,2-tetrachloroethane ug/L 1Uethylbenzene ug/L 1Um&p-xylenes ug/L 2Uo-xylene ug/L 1Ustyrene ug/L 1Ubromoform ug/L 1Uisopropylbenzene ug/L 1U1,1,2,2-tetrachloroethane ug/L 0.5U1,2,3-trichloropropane ug/L 1Un-propylbenzene ug/L 1Ubromobenzene ug/L 1U1,3,5-trimethylbenzene ug/L 1U2-chlorotoluene ug/L 1U4-chlorotoluene ug/L 1Utert-butylbenzene ug/L 1U1,2,4-trimethylbenzene ug/L 1U

sec-butylbenzene ug/L 1U1,3-dichlorobenzene ug/L 1U

NA = Not analyzed






4-isopropyltoluene ug/L 1U1,4-dichlorobenzene ug/L 1U1,2-dichlorobenzene ug/L 1Un-butylbenzene ug/L 1U1,2-dibromo-3-chloropropane ug/L 2U1,2,4-trichlorobenzene ug/L 1Uhexachlorobutadiene ug/L 2Unaphthalene ug/L 1U1,2,3-trichlorobenzene ug/L 1Uacetone ug/L 10U

Dimethylformamide ug/L 5.32U

NA = Not analyzed

TABLE A-3


Dimethylformamide



Hope, Maine

SAMPLE ID B-5D-I B-6A-D B-8A-D B-9A-ID B-9A-I B-12B-I NBW-U NBW-L ODW-L ODW-U P-20

DATE 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14 9/30/14

CONSTITUENT RESULT TYPE Primary Primary Primary Duplicate Primary Primary Primary Primary Primary Primary Primary

Dimethylformamide ug/L 12.3 101 65.9 NA 714J 280 5.1U 5.1U 5.15U 5.1U 5.15U

NA = Not analyzed


APPENDIX B

WATER QUALITY INDICATOR PARAMETER

TREND GRAPHS

P-20

Well Location DateTemperature

(OC)

Conductivity

(us/cm)pH

Oxidation/Reduction

Potential (mV)

Dissolved Oxygen

(mg/l)Turbidity (ntu)

P-20 8/6/2002 13.5 1289 8.4 220 0.23 43.7P-20 10/24/2002 10.27 147.9 8.55 -207.3 2.6 NAP-20 12/10/2002 9.79 973 7.65 -308.5 1.04 NAP-20 3/4/2003 10.36 907 9.57 -50.7 0.49 NAP-20 4/1/2003 7.18 841 9.12 15.8 1.65 38P-20 11/13/2003 11.5 790 8.09 -164.3 2.26 NAP-20 4/15/2004 10.44 768 8.51 -274 0.23 NAP-20 11/9/2004 8.92 938 8.33 -210 0.64 13P-20 10/19/2006 11.37 493 8.94 -244 0.14 5.56P-20 11/15/2007 8.75 481 9.1 -391.2 0.10 12P-20 11/12/2008 5.25 575 9.16 -208.7 0.11 18.4P-20 11/5/2010 10.12 475 9.13 -217 0.27 21.6P-20 8/22/2012 17.68 415 9.13 -210 0.13 21.7P-20 9/30/2014 11.15 415 9.02 -279.0 0.17 28.4

-1

-0.5

0

0.5

1

1.5

2

2.5

3

-600

-400

-200

0

200

400

600

800

1000

1200

1400

8/6

/20

02

10/2

4/2

00

2

12/1

0/2

00

2

3/4

/20

03

4/1

/20

03

11/1

3/2

00

3

4/1

5/2

004

11/9

/20

04

10/1

9/2

00

6

11/1

5/2

00

7

11/1

2/2

00

8

11/5

/20

10

8/2

2/2

012

9/3

0/2

014

Dis

so

lve

dO

xyg

en

(mg

/L)

Co

nd

uc

tiv

ity

(us

/cm

)O

RP

(mV

)

Date

Conductivity (us/cm) Oxidation/Reduction Potential (mV) Dissolved Oxygen (mg/l)

Lactate Additions PerfomedAugust 2002

Peroxide Additions PerfomedSummer 2005

B-9A-I

Well

LocationDate

Temperature

(OC)

Conductivity

(us/cm)pH

Oxidation/Reduction

Potential (mV)

Dissolved

Oxygen

(mg/l)

Turbidity

(ntu)

B-9A-I 10/21/2001 14.1 27200 7.71 -298 4.6 128

B-9A-I 4/23/2002 9.6 6840 7.49 -290 0.53 22.9

B-9A-I 10/22/2002 10.59 28960 6.72 -499.5 0.01 4.48

B-9A-I 12/11/2002 8.73 17450 6.6 -339.9 0.42 NA

B-9A-I 3/5/2003 8.75 14660 6.61 -94.5 0.55 NA

B-9A-I 4/8/2003 7.96 18820 6.51 -296.7 0.23 8.1

B-9A-I 11/12/2003 11.66 10837 6.69 -111.5 0.26 4.24

B-9A-I 4/14/2004 9.43 9315 6.9 -129 0.34 2.3

B-9A-I 11/9/2004 9.27 10624 6.99 -169 1.09 1.96

B-9A-I 10/19/2006 11.3 2166 7.13 -226 0.13 5.28

B-9A-I 11/15/2007 11.13 3772 7.59 -330 0.51 9.4

B-9A-I 11/12/2008 8.25 4894 7.75 -183.1 0.22 2.96

B-9A-I 11/5/2010 9.79 3812 7.54 -173.1 0.22 12

B-9A-I 8/22/2012 14.32 1380 7.64 -134 1.06 12.6

B-9A-I 9/30/2014 11.08 4030 8.04 -164.0 0.54 14.8

-1

0

1

2

3

4

5

-5000

0

5000

10000

15000

20000

25000

30000

35000

10/2

1/2

00

1

4/2

3/2

00

2

10/2

2/2

00

2

12/1

1/2

00

2

3/5

/200

3

4/8

/200

3

11/1

2/2

00

3

4/1

4/2

00

4

11/9

/20

04

10/1

9/2

00

6

11/1

5/2

00

7

11/1

2/2

00

8

11/5

/20

10

8/2

2/2

01

2

9/3

0/2

01

4

Dis

so

lved

Oxy

gen

(mg

/L)

Co

nd

ucti

vit

y(u

s/c

m)

OR

P(m

V)

Date



Peroxide Additions Perfomed Summer2005

B-12B-I

Well

LocationDate

Temperature

(OC)

Conductivity

(us/cm)pH

Oxidation/Reduction

Potential (mV)

Dissolved

Oxygen

(mg/l)

Turbidity

(ntu)

B-12B-I 10/31/2001 9.6 2290 9.61 -130 2.5 45.8

B-12B-I 4/24/2002 7.83 1030 6.69 -252 3.24 47

B-12B-I 10/22/2002 9.93 2576 7.31 -245.7 6.82 5.6

B-12B-I 11/7/2002 7.89 1492 9.39 -202 0.42 NA

B-12B-I 11/21/2002 8.97 885 9.64 -153 1.2 NA

B-12B-I 12/10/2002 8.47 1486 9.62 -322 0.87 NA

B-12B-I 4/8/2003 5.51 506 10.08 -234 0.81 4.78

B-12B-I 11/12/2003 10.46 501 9.55 -247.2 0.47 1.5

B-12B-I 4/14/2004 7.55 637 9.75 -247 0.15 3.4

B-12B-I 11/9/2004 7.22 645 9.57 -293 0.83 1.8

B-12B-I 10/19/2006 10.12 408 9.08 -186 0.42 1.1

B-12B-I 11/15/2007 10.34 414 9.5 -345.1 0.22 4.9

B-12B-I 11/12/2008 7.97 519 9.63 -170.1 0.36 1.08

B-12B-I 11/5/2010 9.04 441 9.62 -206.1 0.2 3.4

B-12B-I 8/22/2012 12.89 519 9.52 -184 0.1 2

B-12B-I 9/30/2014 10.26 590 9.43 -205 0.12 0.5

-1

0

1

2

3

4

5

6

7

8

-500

0

500

1000

1500

2000

2500

3000

10

/31

/20

01

4/2

4/2

00

2

10

/22

/20

02

11

/7/2

00

2

11

/21

/20

02

12

/10

/20

02

4/8

/20

03

11

/12

/20

03

4/1

4/2

00

4

11

/9/2

00

4

10

/19

/20

06

11

/15

/20

07

11

/12

/20

08

11

/5/2

01

0

8/2

2/2

01

2

9/3

0/2

01

4

Dis

so

lve

dO

xyg

en

(mg

/L)

Co

nd

uc

tivit

y(u

s/c

m)

OR

P(m

V)

Date




B-5D-I / B-5B-IWell B-5B-I was replaced with well B-5D-I in October 2003, prior to the Q34 sampling round

Well

LocationDate

Temperature

(OC)

Conductivity

(us/cm)pH

Oxidation/Reduction

Potential (mV)

Dissolved

Oxygen

(mg/l)

Turbidity

(ntu)

B-5D-I 10/30/2001 10.1 193 7.29 -15 6.75 4.31

B-5D-I 4/24/2002 9.61 292 5.98 -243 3.3 7.5

B-5D-I 10/21/2002 8.21 235 8.18 -195.3 0.35 1.65

B-5D-I 11/21/2002 8.66 162 8.07 -100.1 1.47 NA

B-5D-I 12/10/2002 6.97 238 8.01 -328 3.42 NA

B-5D-I 4/3/2003 7.95 221 8.63 -129.2 0.11 5.3

B-5D-I 11/21/2003 9.1 189 8 153 0.52 5.15

B-5D-I 4/14/2004 7.8 173 7.72 -69.9 1.17 33

B-5D-I 11/9/2004 7.57 212 7.82 -125 1.01 5

B-5D-I 10/19/2006 11.43 227 7.95 -94 0.66 0.9

B-5D-I 11/15/2007 10.16 170 7.82 -290.7 0.3 1.7

B-5D-I 11/12/2008 6.7 181 7.89 -95.3 0.79 4.12

B-5D-I 11/5/2010 9.09 211 7.83 -189.5 0.83 3.5

B-5D-I 8/22/2012 16.2 181 7.83 -118 0.92 4.2

B-5D-I 9/30/2014 9.81 272 8.07 -168 0.47 4.6

-1

0

1

2

3

4

5

6

7

8

-400

-300

-200

-100

0

100

200

300

400

10/3

0/2

001

4/2

4/2

00

2

10/2

1/2

002

11/2

1/2

002

12/1

0/2

002

4/3

/20

03

11/2

1/2

003

4/1

4/2

00

4

11/9

/200

4

10/1

9/2

006

11/1

5/2

007

11/1

2/2

008

11/5

/201

0

8/2

2/2

01

2

9/3

0/2

01

4

Dis

so

lved

Oxy

gen

(mg

/L)

Co

nd

ucti

vit

y(u

s/c

m)

OR

P(m

V)

Date




NBW-U

Well

LocationDate

Temperature

(OC)

Conductivity

(us/cm)pH

Oxidation/Reduction

Potential (mV)

Dissolved

Oxygen

(mg/l)

Turbidity

(ntu)

NBW-U 11/25/2003 8.01 580 9.64 143 0.45 SNBW-U 4/13/2004 6 576 7.39 101 4.95 10.2NBW-U 11/9/2004 7.53 435 7.32 -107 0.3 1NBW-U 10/19/2006 11.01 642 6.09 328 48.31 2.1NBW-U 11/15/2007 10.68 474 6.64 66.8 44.72 1.1NBW-U 11/12/2008 8 406 6.58 237.1 58.74 0NBW-U 11/5/2010 8.61 452 7.11 -111.6 1.83 4.9NBW-U 8/22/2012 15.85 443 7.03 -83 1.84 4.5NBW-U 9/30/2014 9.52 544.000 7.25 -174 0.17 3.1

-1

9

19

29

39

49

59

69

-300

-200

-100

0

100

200

300

400

500

600

700

11

/25/2

00

3

4/1

3/2

004

11

/9/2

004

10

/19/2

00

6

11

/15/2

00

7

11

/12/2

00

8

11

/5/2

010

8/2

2/2

012

9/3

0/2

014

Dis

so

lved

Oxyg

en

(mg

/L)

Co

nd

uc

tivit

y(u

s/c

m)

OR

P(m

V)

Date



NBW-L

WellLocation

DateTemperature

(OC)Conductivity

(us/cm)pH

Oxidation/ReductionPotential (mV)

DissolvedOxygen(mg/l)

Turbidity(ntu)

NBW-L 11/25/2003 8.56 649 9.96 146 1.73 SNBW-L 4/13/2004 6.27 249 7.31 102 1.51 552NBW-L 11/9/2004 7.21 191 7.25 -62 0.4 5.3NBW-L 10/19/2006 10.94 1032 3.6 435 49.12 1.2NBW-L 11/15/2007 11.97 1033 3.61 294.9 44.48 4.6NBW-L 11/12/2008 7.61 1034 4.05 302.2 72.17 0NBW-L 11/5/2010 8.43 961 3.96 219.9 49.29 8.1NBW-L 8/22/2012 14.58 1280 3.91 362 22.08 3.7NBW-L 9/30/2014 9.47 1400.000 4.33 305 13.78 4

-1

9

19

29

39

49

59

69

79

-200

0

200

400

600

800

1000

1200

1400

1600

11/2

5/2

003

4/1

3/2

004

11/9

/2004

10/1

9/2

006

11/1

5/2

007

11/1

2/2

008

11/5

/2010

8/2

2/2

012

9/3

0/2

014

Dis

so

lved

Oxyg

en

(mg

/L)

Co

nd

ucti

vit

y(u

s/c

m)

OR

P(m

V)

Date



Well

LocationDate

Temperature

(OC)

Conductivity

(us/cm)pH

Oxidation/Reduction

Potential (mV)

Dissolved

Oxygen

(mg/l)

Turbidity (ntu)

ODW-U 11/1/2001 9.4 221 8.58 -143 5.6 1.7ODW-U 4/9/2003 7.12 175 7.96 -166.2 0.2 NAODW-U 11/13/2003 8.45 132 7.22 -108.3 0.8 NAODW-U 4/13/2004 7.62 135 8.32 -240 0.26 NAODW-U 11/9/2004 8.33 274 7.87 -239 0.45 1ODW-U 10/19/2006 10.2 269 5.65 200.4 40.78 6.1ODW-U 11/15/2007 10.75 171 6.03 -4.7 29.45 3.9ODW-U 11/12/2008 7 384 5.45 280 30.18 4.9ODW-U 11/5/2010 8.72 578 4.65 241.8 1.89 6.4ODW-U 8/22/2012 14.62 464 6.1 -32 0.84 3.8ODW-U 9/30/2014 9.73 607 6.31 29.0 1.14 14.0

ODW-U

-1

4

9

14

19

24

29

34

39

44

-300

-200

-100

0

100

200

300

400

500

600

700

11/1

/20

01

4/9

/20

03

11/1

3/2

00

3

4/1

3/2

004

11/9

/20

04

10/1

9/2

00

6

11/1

5/2

00

7

11/1

2/2

00

8

11/5

/20

10

8/2

2/2

012

9/3

0/2

014 Dis

so

lve

dO

xyg

en

(mg

/L)

Co

nd

uc

tiv

ity

(us

/cm

)O

RP

(mV

)

Date




ODW-L

Well

LocationDate

Temperature

(OC)

Conductivity

(us/cm)pH

Oxidation/Reduction

Potential (mV)

Dissolved

Oxygen

(mg/l)

Turbidity

(ntu)

ODW-L 11/1/2001 10.2 240 9.64 -101 5.9 8.5ODW-L 4/25/2002 8.1 222 8.45 -46 3.5 0.28ODW-L 10/21/2002 8.7 217 8.96 12.8 0.43 2

ODW-L 11/11/2003 8.23 138 8.64 -73 1.52 0.8ODW-L 4/13/2004 6.66 141 8.87 -128 1.31 0.99

ODW-L 11/9/2004 8.2 676 6.36 -88 0.63 0.75ODW-L 10/19/2006 11.11 1642 2.88 430 47.94 3.6ODW-L 11/15/2007 12.03 1152 3.58 330.6 36.71 1.3

ODW-L 11/12/2008 4.03 803 3.92 389.9 74.58 0.81

ODW-L 11/5/2010 8.01 650 3.97 271 53.41 9.2ODW-L 8/22/2012 15.99 727 5.1 273 32.37 4.3ODW-L 9/30/2014 10.13 879 4.26 348.0 12.51 8.3

-1

9

19

29

39

49

59

69

79

-400

-200

0

200

400

600

800

1000

1200

1400

1600

1800

11/1

/2001

4/2

5/2

002

10/2

1/2

002

11/1

1/2

003

4/1

3/2

004

11/9

/2004

10/1

9/2

006

11/1

5/2

007

11/1

2/2

008

11/5

/2010

8/2

2/2

012

9/3

0/2

014

Dis

so

lved

Oxyg

en

(mg

/L)

Co

nd

ucti

vit

y(u

s/c

m)

OR

P(m

V)

Date



Peroxide Additions Perfomed

B-8A-D

Well Location Date Temperature (OC)Conductivity

(us/cm)pH

Oxidation/Reduction

Potential (mV)

Dissolved

Oxygen (mg/l)Turbidity (ntu)

B-8A-D 11/1/2001 9.5 557 8.65 -64 7.2 183

B-8A-D 4/23/2002 7.84 514 6.63 -212 3.06 0.85

B-8A-D 10/22/2002 6.71 1125 7.03 -72.8 0.56 6.44

B-8A-D 12/10/2002 6.75 640 7.09 -349 0.61 NA

B-8A-D 3/4/2003 7.22 238 7.17 -111 0.91 NA

B-8A-D 4/2/2003 6.84 348 7.81 -169 0.46 6.29

B-8A-D 11/12/2003 9.47 326 7.96 -185.7 0.29 1.95

B-8A-D 4/13/2004 5.45 273 7.61 -150 1.92 0.87

B-8A-D 11/9/2004 7.41 424 7.93 -159 2 1

B-8A-D 10/19/2006 10.96 486 7.51 -20.5 0.72 0.55

B-8A-D 11/15/2007 11.19 375 7.6 -218.4 0.46 0

B-8A-D 11/12/2008 7.53 357 7.71 -130.6 0.41 0

B-8A-D 11/5/2010 8.56 421 7.94 -125.2 0.59 2.6

B-8A-D 8/22/2012 13.58 427 8.02 -192 0.59 1.1

B-8A-D 9/30/2014 9.37 459 8.02 -216 0.11 3.4

-1

0

1

2

3

4

5

6

7

8

-600

-400

-200

0

200

400

600

800

1000

1200

11

/1/2

00

1

4/2

3/2

00

2

10

/22

/20

02

12

/10

/20

02

3/4

/20

03

4/2

/20

03

11

/12

/20

03

4/1

3/2

00

4

11

/9/2

00

4

10

/19

/20

06

11

/15

/20

07

11

/12

/20

08

11

/5/2

01

0

8/2

2/2

01

2

9/3

0/2

01

4

Dis

so

lve

dO

xy

ge

n(m

g/L

)

Co

nd

uc

tiv

ity

(us

/cm

)O

RP

(mV

)

Date




B-6A-D

Well

LocationDate

Temperature

(OC)

Conductivity

(us/cm)pH

Oxidation/Reduction

Potential (mV)

Dissolved

Oxygen

(mg/l)

Turbidity

(ntu)

B-6A-D 11/1/2001 10.9 484 7.54 -163 3.59 1.77

B-6A-D 4/23/2002 8.4 701 7.88 -165 0.37 20

B-6A-D 10/23/2002 8.66 775 7.04 -102.5 4.82 NA

B-6A-D 12/10/2002 5.44 671 7.42 -305 2.37 NA

B-6A-D 3/4/2003 4.87 323 7.74 -192 0.56 NA

B-6A-D 4/7/2003 7.01 590 8.18 -266.2 0.22 4.1

B-6A-D 11/12/2003 9.86 467 8.02 -259 0.4 4.1

B-6A-D 4/14/2004 8.67 692 8.24 -225 0.23 1.5

B-6A-D 11/9/2004 6.71 440 7.66 -223 0.64 0.8

B-6A-D 10/19/2006 10.65 447 6.54 -121 0.25 2.25

B-6A-D 11/15/2007 10.35 460 6.8 -318.6 0.22 1.8

B-6A-D 11/12/2008 7.85 449 7.62 -182.4 0.36 0.6

B-6A-D 11/5/2010 9.03 392 7.68 -179.7 0.3 11.6

B-6A-D 8/22/2012 16.56 374 8.09 -152 0.93 2.2

B-6A-D 9/30/2014 10.19 473 8.00 -217.0 1.13 9.0

-1

0

1

2

3

4

5

6

-400

-200

0

200

400

600

800

1000

11/1

/200

1

4/2

3/2

00

2

10/2

3/2

002

12/1

0/2

002

3/4

/20

03

4/7

/20

03

11/1

2/2

003

4/1

4/2

00

4

11/9

/200

4

10/1

9/2

006

11/1

5/2

007

11/1

2/2

008

11/5

/201

0

8/2

2/2

01

2

9/3

0/2

01

4

Dis

so

lved

Oxy

gen

(mg

/L)

Co

nd

ucti

vit

y(u

s/c

m)

OR

P(m

V)

Date




APPENDIX C

CONTAMINANT TREND GRAPHS BY WELL

Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q29 Q30 Q31 Q32 Q33 Q34 Q35Q36/

LTM-1Q37/

LTM-2Q38/

LTM-3Q39/

LTM-4Q40-

LTM-5Q41-

LTM-6Q42-LTM7

Series1 600.0 690.0 340.0 580.0 0.5 340 230 250 210 430 370 360 91 120 4 270 300 22.6 284 203 385

Series2 3 2 3 0.5 0.5 0.5 0.5 2 2 4 4 2 2 2 2 2 3 1405.8 4.5 10 10

Series3 1300 1200 120 1300 3 660 570 500 500 700 360 430 140 50 50 94 50 62.5 9.33 10.1 12.3

Series4 1 0.8 1 0.5 1 0.5 2 2 2 2 2 2 2 2 2 2 2 1 1 5 5

0

1

10

100

1,000

10,000

Co

ncen

trati

on

(ug

/l)

Quarter

Reported ConcentrationsWell B-5B-I/B-5D-I

Union ChemicalSouth Hope, ME

Well B-5B-I was replacedwith well B-5D-I prior tothe Q34 sampling event

Q17 Q18 Q19 Q20 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q29 Q30 Q31 Q32 Q33 Q34 Q35

Q36/

LTM-1

Q37/

LTM-2

Q38/

LTM-3

Q39/

LTM-4

Q40-

LTM-5

Q41-

LTM-6

Q42-

LTM7

1,1-DCA 8400 6600 5300 1300 1900 790. 1000 5000 3200 2300 2200 3000 2800 2300 2300 2300 2700 2800 2400 2210 1670 1750 1860

Total-1,2-DCE 7600 4808 4205 1303 1603 3 360 2330 5 590 760 1100 910 580 640 740 650 800 610 401 325 202 142

DMF 1700 8200 1400 2700 1800 780 610 4200 140 170 1270 1900 470 1200 1400 1400 1000 1500 1400 556 121 173 280

TCE 200 5400 2600 560 670 430 300 53 5 28 40 50 40 30 30 30 20 34 25 28.8 50 50 50

1.0

10.0

100.0

1000.0

10000.0

100000.0

Co

ncen

trati

on

(ug

/l)

Quarter

Reported ConcentrationsWell B-12B-I


Peroxide additionsperformed betweenLTM-1 and LTM-2

Q17 Q18 Q19 Q20 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q29 Q30 Q31 Q32 Q33 Q34 Q35Q36/LTM-1

Q37/LTM

-2

Q38/LTM

-3

Q39/LTM

-4

Q40-LTM-5

Q41-LTM-6

Q42-LTM

7

1,1-DCA 6100 5500 6000 7500 2900 600 2300 910 2000 6200 6200 2700 4400 3800 1300 1700 2200 3100 3800 570 360 168 181 25 25

Total-1,2-DCE 5500 6100 3704 3303 1703 333 1302 1 10 25 4000 20 2000 1800 400 420 10 20 20 29 20 6.4 60 50 50

DMF 1000 1300 1800 1900 140 29 140 33 120 510 470 180 57 110 125 103 931 714

TCE 3200 4200 2800 2800 1000 170 520 300 10 25 480 20 280 200 80 50 20 20 20 17 20 5.6 20 25 25

1

10

100

1000

10000

Co

ncen

trati

on

(ug

/l)

Quarter

Reported ConcentrationsWell B-9A-I



Q28 Q33 Q36/ LTM-1 Q37/ LTM-2 Q38/ LTM-3 Q39/ LTM-4 Q40-LTM-5 Q41-LTM-6 Q42-LTM7

1,1-DCA 5 10 20 45 10 5 50 50 50

Total-1,2-DCE 150 2000 3600 1500 4608 3520 4020 1920 2460

DMF 50 50 50 62.5 5.15 5.1 5.1

TCE 13 1300 2400 570 1000 439 108 97.5 259

0.1

1

10

100

1000

10000

100000

Co

ncen

trati

on

(ug

/l)

Quarter

Reported ConcentrationsWell P-20



Q17 Q18 Q19 Q20 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q29 Q30 Q31 Q32 Q33 Q34 Q35Q36/

LTM-1Q37/

LTM-2Q38/

LTM-3Q39/

LTM-4Q40-

LTM-5Q41-

LTM-6Q42-LTM7

1,1-DCA 1400 1800 1700 1100 350 73 100 140 3000 2000 2200 4000 3300 4200 3000 1200 3630 2970 2500 2420

Total-1,2-DCE 1000 830 860 540 191 0.5 5 42 1600 1000 1300 2500 2200 2400 2100 777 1406 1105 415 218

DMF 270 170 330 150 90 10 19 100 480 410 120 252 76.9 102 101

TCE 260 14 25 7 8 0.5 5 9.6 39 40 40 60 60 60 66 37 25 100 100 100

0

1

10

100

1000

10000

Co

ncen

trati

on

(ug

/l)

Quarter

Reported ConcentrationsWell B-6A-D



Q17 Q18 Q19 Q20 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q29 Q30 Q31 Q32 Q33 Q34 Q35Q36/

LTM-1Q37/

LTM-2Q38/

LTM-3Q39/

LTM-4Q40-

LTM-5Q41-

LTM-6Q42-LTM7

1,1-DCA 950 720 800 780 600 660 1100 1200 1600 73 590 690 690 420 510 300 450 560 750 833 665 516 480

Total-1,2-DCE 47 40 33 32 19 32 47 63 5 2 45 40 70 40 40 30 30 68 282 97 60 40 40

DMF 5800 6300 4900 3700 5800 2900 3300 5400 730 100 3300 2600 1400 1300 1800 770 800 1200 1100 556 138 158 65.9

TCE 35 34 26 23 11 20 31 25 5 2 19 20 20 10 20 10 10 19 13 11 20 20 20

0.1

1

10

100

1000

10000

Co

ncen

trati

on

(ug

/l)

Quarter

Reported ConcentrationsWell B-8A-D



Q1 Q2 Q4 Q8 Q10 Q12 Q14 Q17 Q21 Q22 Q23 Q24 Q26 Q27 Q28 Q32Q36/

LTM-1Q37/

LTM-2Q38/

LTM-3Q39/

LTM-4Q40-

LTM-5Q41-

LTM-6Q42-LTM7

1,1-DCA 22 8.7 11 14 35 46 51 51 42 52 42 33 23 23 22 19 30 13 14 8.6 6.4 6.9 6.7

Total-1,2-DCE 10 3.6 3.5 9.5 2.5 2.5 2.5 1.5 1.5 15 2 4 2 2 15 2 2

DMF 3 3 3 3 7 11 11 10 10 16 5.5 19 7 7.3 3 50 50 50 62.5 5.26 5.1 5.1

TCE 5 0.6 5 1 5 5 5 1 0.5 11 0.9 0.6 0.5 0.5 0.5 2 2 2 2 1 1 1 1

0.1

1

10

100

1000

10000

100000

Co

ncen

trati

on

(ug

/l)

Quarter

Reported ConcentrationsWell ODW-U



Q1 Q2 Q4 Q8 Q10 Q12 Q14 Q17 Q21 Q22 Q23 Q24 Q26 Q27 Q28 Q33 Q34 Q35Q36/

LTM-1Q37/

LTM-2Q38/

LTM-3Q39/

LTM-4Q40-

LTM-5Q41-

LTM-6Q42-LTM7

1,1-DCA 50 43 40 39 54 53 57 39 41 45 46 29 38 32 22 22 19 23 26 2 7 6.3 5 5 7.2

Total-1,2-DCE 25 22 20.5 22.5 17.5 11.5 15.5 13.5 1.5 13 11 14 12 2 2 2.9 15 10 2

DMF 3 8 9 4 3 6 3 6.8 3 8 3 3 9 3 3 50 50 50 62.5 5.26 5.1 5.1

TCE 5 3.1 5 5.2 5 5 5 1.2 2 6 1 1 0.8 0.5 0.5 2 2 2 2 2 2 1 5 5 1

0.1

1

10

100

1000

10000

100000

Co

ncen

trati

on

(ug

/l)

Quarter

Reported ConcentrationsWell ODW-L




1,1-DCA 2 4 7 5 14 12.7 12.4 9.67 9.8

Total-1,2-DCE 2 2 2 2 2 2 3 2 2

DMF 50 50 50 50 62.5 5.38 5.05 5.1

TCE 2 2 2 2 2 1 1 1

0.1

1

10

100

1000

10000

100000

Co

ncen

trati

on

(ug

/l)

Quarter

Reported ConcentrationsWell NBW-U




1,1-DCA 2 2 2 2 2 5 5 5 5

Total-1,2-DCE 2 2 2 2 2 10 15 10 10

DMF 100 50 50 50 62.5 5 5.1 5.1

TCE 2 2 2 2 2 5 5.26 5 5

0.1

1

10

100

1000

10000

100000

Co

ncen

trati

on

(ug

/l)

Quarter

Reported ConcentrationsWell NBW-L



APPENDIX D

CONTAMINANT TREND GRAPHS BY COMPOUND

DATE B-6A-D B-8A-DJune-92 14000 290

October-92 9200 990January-93 6300 890

April-93 6200 850July-93 13000 1100

February-94 1000April-94 9800July-94 7200 960

November-94 9800January-95 6700 990

April-95 11000July-95 4700 1100

October-95 4500July-96 1400 950July-97 1800 720

October-97 1700 800Apr-98 1100 780

August-98 710October-98 600

April-99 350 660November-99 73 1100

April-00 100 1200October-00 240 1600

April-01 140May-01 73

November-01 3000 590April-02 2000 690

October-02 690April-03 2200 420

November-03 4000 510April-04 3300 280

November-04 4200 450October-06 3000 560

November-07 1200 750November-08 3630 833November-10 2970 665

August-12 2500 516September-14 2420 480

1,1-DICHLOROETHANE( Reported in ug/L )

Union ChemicalHope, Maine

1

10

100

1000

10000

100000

Apr-

95

Apr-

96

Apr-

97

Apr-

98

Apr-

99

Apr-

00

Apr-

01

Apr-

02

Apr-

03

Apr-

04

Apr-

05

Apr-

06

Apr-

07

Apr-

08

Apr-

09

Apr-

10

Apr-

11

Apr-

12

Apr-

13

Apr-

14

CO

NC

EN

TR

AT

ION

(ug

/l)

DATE

B-6A-D B-8A-D PERFORMANCE STANDARD (5 ug/L)

System Startup (1/96)

Well B-5B-I was replaced with well B-5D-I in October 2003 prior to the Q34 sampling round

DATE B-9A-I B-5B-I/B-5D-I B-12B-I P-20

June-92 4100 72 5200

October-92 2400 69 280

January-93 3500

April-93 2400 94 4400

July-93 2700 90

February-94 3200

April-94 4100 110 6000

July-94 3200 90

November-94 3300 120 5300

January-95 1800

April-95 1300 100 5800

July-95 1300 99

October-95 5800 68 5300

January-96 7800

April-96 4300 77 4700

July-96 6100

October-96 5500 180 8400

January-97 6000

April-97 7500 320 6600

July-97 2900

October-97 600 5300

April-98 600 690 1300

Oct-98 2300 340 1900

Apr-99 910 580 790

November-99 2000 0.5 1000

February-00 3800

April-00 6200 340 5000

June-00 13000

July-00 7700

August-00 9600

October-00 6200 230 3200 5

May-01 2700 250 2300

October-01 4400 210 2200

April-02 3800 430 3000

October-02 1300 370 2800

April-03 1700 360 2300 10

November-03 2200 91 2300

April-04 3100 120 2300

November-04 3800 4 2700 20

October-06 570 270 2800 45

November-07 360 300 2400 10

November-08 168 22.6 2210 5

November-10 181 284 1670 50

August-12 25 203 1750 50


Union Chemical

Hope, Maine

0.1

1

10

100

1000

10000

100000

Ja

n-9

5

Ja

n-9

6

Ja

n-9

7

Ja

n-9

8

Ja

n-9

9

Ja

n-0

0

Ja

n-0

1

Ja

n-0

2

Ja

n-0

3

Ja

n-0

4

Ja

n-0

5

Ja

n-0

6

Ja

n-0

7

Ja

n-0

8

Ja

n-0

9

Ja

n-1

0

Ja

n-1

1

Ja

n-1

2

Ja

n-1

3

Ja

n-1

4

CO

NC

EN

TR

AT

ION

(ug

/L)

DATE

B-9A-I B-5B-I/B-5D-I B-12B-I P-20 PERFORMANCE STANDARD (5 ug/L)


September-14 25 385 1860 50

DATE ODW-L ODW-U NBW-L NBW-UJune-92 50 22

August-92 43 8.7February-93 40 11February-94 39 14August-94 54 35

February-95 53 46August-95 57 51

May-96 39 51May-97 41 42

October-97 45 52April-98 46 42Oct-98 29 33

November-99 38 23April-00 32 23

October-00 22 22October-02 19

April-03 22November-03 19 2 2

April-04 23 2 4November-04 26 30 2 7October-06 2 13 2 5

November-07 7 14 2 14November-08 6.3 8.6 5 12.7November-10 5 6.4 5 12.4

August-12 5 6.9 5 9.67September-14 7.2 6.7 5 9.8



1

10

100

CO

NC

EN

TR

AT

ION

(ug

/l)

DATE

ODW-L ODW-U NBW-L NBW-U PERFORMANCE STANDARD (5 ug/L)



August-92 43 8.7February-93 40 11February-94 39 14August-94 54 35


May-96 39 51May-97 41 42






November-07 7 14 2 14November-08 6.3 8.6 5 12.7November-10 5 6.4 5 12.4

August-12 5 6.9 5 9.67September-14 7.2 6.7 5 9.8



1

10

100

CO

NC

EN

TR

AT

ION

(ug

/l)

DATE



DATE Overburden Bedrock Total Site AverageOctober-00 511.36

May-01October-01 1075.88 526.25 893

April-02 873 420 729October-02 207 587 445

April-03 491 383 473November-03 568 506 539

April-04 487 405 448November-04 1631 786 1124October-06 921

November-07 767.5 471.75 590.05November-08 601.4 749.26 690.2November-10 546.25 610.6 584.8

August-12 507 507.1 507.1September-14 580.0 488.1 534.1



1

10

100

1000

10000

CO

NC

EN

TR

AT

ION

(ug

/l)

DATE

Overburden Bedrock Total Site Average PERFORMANCE STANDARD (5 ug/L)

DATE B-6A-D B-8A-DJune-92 2500 5

October-92 1200 10January-93 800 25

April-93 680 5July-93 2500 120

February-94 9.1April-94 2500July-94 1000 100

November-94 1200January-95 1100 50

April-95 1700July-95 950 500

October-95 1200July-96 1000 47July-97 830 40

October-97 860 33April-98 540 32


April-99 191 32November-99 25 47

April-00 5 63October-00 6 5

April-01 42May-01 2

November-01 1600 45April-02 1000 40

October-02 60April-03 1300 40

November-03 2500 40April-04 2200 300

November-04 2400 30October-06 2100 68

November-07 620 92November-08 1380 87November-10 867 20

August-12 315 20September-14 118 20

CIS-1,2 - DICHLOROETHENE( Reported in ug/L )


0.1

1

10

100

1000

10000

100000

Jun

-92

Jun

-93

Jun

-94

Jun

-95

Jun

-96

Jun

-97

Jun

-98

Jun

-99

Jun

-00

Jun

-01

Jun

-02

Jun

-03

Jun

-04

Jun

-05

Jun

-06

Jun

-07

Jun

-08

Jun

-09

Jun

-10

Jun

-11

Jun

-12

Jun

-13

Jun

-14

Jun

-15

CO

NC

EN

TR

AT

ION

(ug

/l)

DATE



DATE ODW-L ODW-U NBW-L NBW-UAugust-95 25 10

May-96 22 4May-97 21 4






November-07 2 2 2 2November-08 1.9 1 5 1November-10 5 1 5 5

August-12 5 1 5 1September-14 1 1 5 1



1

10

100

Au

g-9

5

Au

g-9

6

Au

g-9

7

Au

g-9

8

Au

g-9

9

Au

g-0

0

Au

g-0

1

Au

g-0

2

Au

g-0

3

Au

g-0

4

Au

g-0

5

Au

g-0

6

Au

g-0

7

Au

g-0

8

Au

g-0

9

Au

g-1

0

Au

g-1

1

Au

g-1

2

Au

g-1

3

Au

g-1

4

CO

NC

EN

TR

AT

ION

(ug

/l)

DATE




DATE B-9A-I B-12B-I B-5B-I/B-5D-I P-20June-92 6100 3100 5

October-92 1800 190 5

January-93 3500April-93 3200 3000 5

July-93 3800 56February-94 3800

April-94 7200 4000 50

July-94 4000 10November-94 3800 3600 5.2

January-95 3100April-95 2800 3600 5July-95 2700 5

October-95 10000 5500 5January-96 7300

April-96 7500 4600 5July-96 5500

October-96 6100 7600 1.4

January-97 3704April-97 3303 4808 1July-97 1703

October-97 4205 3April-98 333 1303 2

October-98 1302 1603 3April-99 1 3 0.5

November-99 10 360 0.5

February-00 10April-00 25 2330 0.5June-00 1800July-00 3000

August-00 4000

October-00 3400 5 0.5 150May-01 20 590 2

October-01 2000 760 2April-02 1800 1100 2

October-02 390 890 2

April-03 420 580 2 2000November-03 10 640 2


November-07 20 470 2 3200November-08 6.4 376 1 2600November-10 20 216 1 1630

August-12 25 152 5 1220


Union Chemical

Hope, Maine

0.1

1

10

100

1000

10000

100000

Jun-9

5

Jun-9

6

Jun-9

7

Jun-9

8

Jun-9

9

Jun-0

0

Jun-0

1

Jun-0

2

Jun-0

3

Jun-0

4

Jun-0

5

Jun-0

6

Jun-0

7

Jun-0

8

Jun-0

9

Jun-1

0

Jun-1

1

Jun-1

2

Jun-1

3

Jun-1

4

CO

NC

EN

TR

AT

ION

(ug

/l)

DATE

B-9A-I B-12B-I B-5B-I/B-5D-I P-20 PERFORMANCE STANDARD (70 ug/L)


September-14 25 92 5 2460

DATE Overburden Bedrock Total Site AverageOctober-00 338.74

May-01October-01 366.69 227.5 321

April-02 289 152 245October-02 27 203 137

April-03 270 196 257November-03 116 286 197

April-04 120 252 183November-04 1068 408 672October-06 582.75

November-07 923 176.5 475November-08 745.8 245.9 445.9November-10 466.75 149.8 276.6

August-12 350.5 57.8 174.9September-14 645.5 24.3 334.9



1

10

100

1000

10000C

ON

CE

NT

RA

TIO

N(u

g/l)

DATE



August-92 3 1February-93 5 5February-94 5 1August-94 5 5


May-96 1 1May-97 2 1






November-07 2 2 2 2November-08 1 1 5 1November-10 5 1 5 1

August-12 5 1 5 1September-14 1 1 5 1

TRICHLOROETHENE( Reported in ug/L )


0.1

1

10

100C

ON

CE

NT

RA

TIO

N(u

g/l)

DATE



DATE B-9A-I B-5B-I/B-5D-I B-12B-I P-20June-92 6100 5 840

October-92 3100 5 50

January-93 7100 270April-93 5200 5

July-93 3500 11February-94 4500

April-94 3800 50 500

July-94 3400 10November-94 4900 5 500

January-95 1300April-95 250 5 250July-95 570 5

October-95 3500 5 1000January-96 14000

April-96 3000 5 500July-96 3200

October-96 4200 1.2

January-97 2800 200April-97 2800 1July-97 1000 5400

October-97 1 2600April-98 170 0.8 560

October-98 520 1 670April-99 300 0.5 430

November-99 10 1 300

February-00 10April-00 25 0.5 53June-00 640July-00 1500

August-00 1200

October-00 480 2 5 13May-01 20 2 28

October-01 280 2 40April-02 200 2 50

October-02 80 2 40

April-03 50 2 30 1300November-03 20 2 30


November-07 20 2 25 1000November-08 5.6 1 28.8 439November-10 20 1 50 108

August-12 25 5 50 97.5


Union Chemical

Hope, Maine

0.1

1

10

100

1000

10000

100000

CO

NC

EN

TR

AT

ION

(ug

/l)

DATEB-9A-I B-5B-I/B-5D-I B-12B-I P-20 PERFORMANCE STANDARD (5 ug/L)


September-14 25 5 50 259

DATE Overburden Bedrock Total Site AverageOctober-00 118

April-01October-01 94.06 9 66

April-02 76 10 55October-02 47 5 31.25

April-03 102 10 86November-03 45 11 29

April-04 17 10 14November-04 611 6 248October-06 155.75

November-07 261.7 14 113.08November-08 118.6 7.3 51.84November-10 44.75 22 31.1

August-12 44.38 22 31September-14 84.75 21.3 53.0



1

10

100

1000

CO

NC

EN

TR

AT

ION

(ug

/l)

DATE



DATE B-5B-I/B-5D-I B-12B-I B-9A-I P-20June-92 58 18000

October-92 73 20000January-93

April-93 97 17000July-93 110

February-94April-94 130 18000July-94 120

November-94 140 22000January-95

April-95 130 14000July-95 130

October-95 140 28000April-96 310 19000 1000July-96 1300

October-96 250 17000 1800January-97 1900

April-97 1800 8200 140July-97

October-97 1300 14000April-98 1200 2700 29

October-98 120 1800 140April-99 1300 780 33

November-99 3 610 120April-00 660 4200 510

October-00 570 140 470April-01 500 170

October-01 500 1270April-02 700 2000

October-02 360 470April-03 430 1200

November-03 140 1400April-04 50 1400

November-04 50 1000 180 50October-06 94 1500 57 50

November-07 50 1400 110 50November-08 62.5 556 125 62.5November-10 9.33 121 103 5.15

August-12 10.1 173 931 5.1

N,N-DIMETHYLFORMAMIDE( Reported in ug/L )


0.1

1

10

100

1000

10000

100000

CO

NC

EN

TR

AT

ION

(ug

/l)

DATE

B-5B-I/B-5D-I B-12B-I B-9A-I P-20 PERFORMANCE STANDARD (390 ug/L)


September-14 12.3 280 714 5.1

DATE B-6A-D B-8A-DJune-92 140

October-92 5700January-93 5700

April-93 5400July-93 6300

February-94 6000July-94 5500

January-95 6200July-95 6400April-96 270July-96 5800April-97 170July-97 6300

October-97 330 4900April-98 150 3700


April-99 90 2900November-99 10 3300

April-00 19 5400October-00 730

May-01 100 100November-01 3300

April-02 2600October-02 1400

April-03 1300November-03 1800

April-04 770November-04 480 800October-06 410 1200

November-07 120 840November-08 252 556November-10 76.9 138

August-12 102 158September-14 101 65.9



0.1

1

10

100

1000

10000C

ON

CE

NT

RA

TIO

N(u

g/l)

DATE




August-92 8 3February-93 9 3February-94 4 3August-94 3 7


May-96 7 10May-97 3 10



October-00 3 3November-03 100 50November-04 50 50 50 50October-06 50 50 50 50

November-07 50 50 50 50November-08 62.5 62.5 62.5 62.5November-10 5.26 5.26 5.26 5.38

August-12 5.1 5.1 5.1 5.05September-14 5.1 5.1 5.1 5.05



1

10

100

1000

CO

NC

EN

TR

AT

ION

(ug

/l)

DATE



APPENDIX E

LOW FLOW SAMPLING METHODOLOGY

(CORRESPONDENCE DATED MARCH 24, 2000, REV.1)

Addendum to

Management of Migration/Source Control Final 100% Design

Union Chemical Company Site South Hope, Maine

Volume V, Chapter 6 - Field Sampling Plan (Revision 1)

8.7.4 Low Flow Sampling Procedures Low flow sampling procedures will be used to support groundwater closure monitoring in accordance with EPA Guidance, as follows:

Ground Water Issue, Low-Flow (Minimal Drawdown) Ground-Water Sampling Procedures, Robert W. Puls and Michael J. Barcelona, EAP/540/S-95?504, April 1996.

In addition, the Maine Department of Environmental Protection (MEDEP) has developed guidelines based on practical field considerations when implementing low flow sampling. These guidelines will be used to guide the sampling effort where Site conditions limit the ability to meet all criteria for low flow sampling outlined in the EPA guidance document. Both the EPA guidance and the MEDEP practical considerations are attached to this addendum. Low flow sampling will be conducted with a peristaltic pump, using dedicated tubing for each well being sampled. Flow-through cells will be used for measuring water quality parameters during sampling. Equipment probes and flow-through cells will be decontaminated between locations with a mix of detergent in water (e.g., Alkanox) followed by a rinse with de-ionized water, as necessary. This decontamination will be performed where "purple" water (due to the presence of permanganate) has entered the flow-through cell or there are any sample-specific conditions that the sampler determines can have a potential impact on readings at subsequent locations. Tubing will be lowered in each well being sampled to a depth which is the midpoint of the screened interval for the well. The tubing will be lowered into the well slowly to minimize disruption of the water column. In addition, the tubing will be lowered at least 24 hours prior to the initiation of sampling. The procedures for collection of low flow samples vary slightly

between wells being sampled with low flow procedures for the first time versus wells being re-sampled using low flow procedures.

8.7.4.1 First-Time Low Flow Sampling at a Well For wells not previously sampled using low flow techniques, follow these procedures:

1) Measure Groundwater Elevation 2) Establish Flow Rate for Sampling

a) Start pump at rate between 100 and 500 milliliters per minute (initial pumping

rate selected by sampler based on known or anticipated Site conditions) b) Monitor groundwater elevations in well

i) If groundwater elevation is stable, increase pumping rate to highest possible flow (not to exceed 1 liter per minute) where the groundwater elevation remains stable

ii) If groundwater elevation is not stable, reduce the groundwater flow until the groundwater elevation stabilizes

c) Keep total drawdown at less than 0.3 feet

3) Purge Time

a) Measure pH, redox potential (ORP), conductivity, DO and turbidity using flow-through cell and/or in-line meters [note: the sampler will also record temperature readings where the instruments being used provide this information.]

i) The instruments used for making these measurements will be calibrated at the

beginning of each day in accordance with manufacturer recommendations. ii) Backup equipment will be available on-Site to evaluate proper functioning of

the equipment.

b) Record measurements every 3 to 5 minutes on the attached form.

i) The sampler will evaluate the recorded measurements to determine whether they are "reasonable" for the Site. This evaluation will be qualitative;

no specific ranges for each parameter is provided due to the range of conditions potentially encountered at the Site.

ii) Where recorded measurements appear inaccurate, the sampler will re-calibrate the equipment and/or check the readings with backup equipment.

iii) As a quality control check on sampling, following each day of sampling, the sampler will transmit a summary of the final readings for each well sampled to the sampling supervisor for review.

c) Sample when 3 consecutive readings are as follows:

i) pH +/- 0.1 ii) ORP +/- 10 millivolts iii) Conductivity +/- 3% iv) DO +/- 10% v) Turbidity +/- 10% (or less than 1 NTU)

d) If greater than 90 minutes of purging has been conducted and the parameters have not stabilized as outlined above, contact the sampling supervisor. The supervisor will use the MEDEP guidelines to develop a well-specific protocol to support sample collection. Any deviations from the procedure outlined above will be noted and reported to EPA and MEDEP in both Site status reports and reports of sampling results.

4) Sampling

a) Bypass the flow-through cells and/or in-line meters b) Sample for VOCs first

8.7.4.2 Repeat Low-Flow Sampling at a Well The initial sampling of a well using low flow procedures establishes the flow rate for a well that allows for stabilization of groundwater parameters and collection of a representative groundwater sample. Repeat sampling of a well will be conducted using the same flow rate used for previous sampling. Where flow rates varied during the purging process, the sampling flow rate will be based on the final flow rate at the time of sampling. If previous low flow sampling of a well did not achieve stabilization of groundwater parameters prior to sampling, the low flow sampling will be conducted as if the well was being sampled for the first time, in an attempt to establish an appropriate flow rate for that well.

Repeat sampling should be conducted using the same purge time as was used in previous low flow sampling. Actual purge times may vary since variable flow rates may have been used during the initial low flow sampling to identify the optimum flow rates. However, over multiple rounds of sampling, the purge times should converge on a time representative for that well and the sampling flow rate. During purging, measurements will be recorded for DO, Conductivity, pH, ORP and turbidity. Temperature will also be recorded, if provided by the instrument being used. The sampler will compare the water quality parameters with previous measurements for the well and evaluate whether the measurement devices are operating reliably. Equipment re-calibration and use of backup equipment for taking measurements are corrective actions to be implemented by the sampler if the water quality parameter measurements appear to be in error.

APPENDIX F

LABORATORY CERTIFICATES OF ANALYSIS

Spectrum Analytical

Report Date:

21-Oct-14 15:16

ü Final Report

Re-Issued Report

Revised Report

SPECTRUM ANALYTICAL, INC.

Featuring

HANIBAL TECHNOLOGY

Laboratory Report

Tetra Tech, Inc.

One Grant Street - P.O. Box 9005

Framingham, MA 01701

Attn: Bob Ankstitus

Project:

Project #:

UCC - So Hope, ME

2420

Laboratory ID Client Sample ID Matrix Date Sampled Date Received

SB97410-01 ODW-U Ground Water 30-Sep-14 08:30 02-Oct-14 15:25

SB97410-02 ODW-L Ground Water 30-Sep-14 09:25 02-Oct-14 15:25

SB97410-03 B8AD Ground Water 30-Sep-14 10:15 02-Oct-14 15:25

SB97410-04 NBW-L Ground Water 30-Sep-14 10:55 02-Oct-14 15:25

SB97410-05 NBW-U Ground Water 30-Sep-14 11:20 02-Oct-14 15:25

SB97410-06 B-5DI Ground Water 30-Sep-14 12:15 02-Oct-14 15:25

SB97410-07 B-12BI Ground Water 30-Sep-14 13:10 02-Oct-14 15:25

SB97410-08 B6AD Ground Water 30-Sep-14 13:50 02-Oct-14 15:25

SB97410-09 B9AI Ground Water 30-Sep-14 14:30 02-Oct-14 15:25

SB97410-10 P-20 Ground Water 30-Sep-14 15:15 02-Oct-14 15:25

SB97410-11 B9AID Ground Water 30-Sep-14 14:35 02-Oct-14 15:25

SB97410-12 QB-4 Surface Water 30-Sep-14 12:30 02-Oct-14 15:25

SB97410-13 Trip Blk Aqueous 30-Sep-14 00:00 02-Oct-14 15:25

Headquarters: 11 Almgren Drive & 830 Silver Street � Agawam, MA 01001 � 1-800-789-9115 � 413-789-9018 � Fax 413-789-4076

www.spectrum-analytical.comPage 1 of 73

I attest that the information contained within the report has been reviewed for accuracy and checked against the quality control

requirements for each method. These results relate only to the sample(s) as received.

All applicable NELAC requirements have been met.

Massachusetts # M-MA138/MA1110

Connecticut # PH-0777

Florida # E87600/E87936

Maine # MA138

New Hampshire # 2538

New Jersey # MA011/MA012

New York # 11393/11840

Pennsylvania # 68-04426/68-02924

Rhode Island # 98

USDA # S-51435

Authorized by:

Nicole Leja

Laboratory Director

Spectrum Analytical holds certification in the State of New York for the analytes as indicated with an X in the "Cert." column within

this report. Please note that the State of New York does not offer certification for all analytes. Please refer to our website for specific

certification holdings in each state.

Please note that this report contains 73 pages of analytical data plus Chain of Custody document(s). When the Laboratory Report is

indicated as revised, this report supersedes any previously dated reports for the laboratory ID(s) referenced above. Where this report

identifies subcontracted analyses, copies of the subcontractor's test report are available upon request. This report may not be

reproduced, except in full, without written approval from Spectrum Analytical, Inc.

Spectrum Analytical, Inc. is a NELAC accredited laboratory organization and meets NELAC testing standards. Use of the NELAC logo however does

not insure that Spectrum is currently accredited for the specific method or analyte indicated. Please refer to our "Quality" web page at

www.spectrum-analytical.com for a full listing of our current certifications and fields of accreditation. States in which Spectrum Analytical, Inc.

holds NELAC certification are New York, New Hampshire, New Jersey, Pennsylvania and Florida. All analytical work for Volatile Organic and Air

analysis are transferred to and conducted at our 830 Silver Street location (NY-11840, NJ-MA012, PA-68-04426 and FL-E87936).

Please contact the Laboratory or Technical Director at 800-789-9115 with any questions regarding the data contained in this laboratory report.

This laboratory report is not valid without an authorized signature on the cover page .

* Reportable Detection Limit Page 2 of 7321-Oct-14 15:16

CASE NARRATIVE:

Data has been reported to the RDL. This report excludes estimated concentrations detected below the RDL and above the MDL

(J-Flag).

The samples were received 2.8 degrees Celsius, please refer to the Chain of Custody for details specific to temperature upon receipt.

An infrared thermometer with a tolerance of +/- 1.0 degrees Celsius was used immediately upon receipt of the samples.

If a Matrix Spike (MS), Matrix Spike Duplicate (MSD) or Duplicate (DUP) was not requested on the Chain of Custody, method

criteria may have been fulfilled with a source sample not of this Sample Delivery Group.

SW846 8270 Case Narrative:

SB97410-09, client ID B9AI, was run under method 8270 for Dimethyl Formamide. There was a large peak of 2-Methylpropanoic

acid eluting at the same retention time as DMF. Multiple dilutions were performed to minimize the interference without succes; the

reporting limit has been raised and the data qualified. The other samples in this work order with reportable concentrations of DMF do

not have the same acid peak interference present. The second liter submitted was extracted and had the same 2-Methylpropanoic acid

interference.

See below for any non-conformances and issues relating to quality control samples and/or sample analysis/matrix.

SW846 8260C

Calibration:

1409096

Analyte quantified by quadratic equation type calibration.

1,2,4-Trichlorobenzene

1,2-Dibromo-3-chloropropane

4-Methyl-2-pentanone (MIBK)

Bromoform

Dibromochloromethane

Naphthalene

trans-1,3-Dichloropropene

trans-1,4-Dichloro-2-butene



SW846 8260C

Calibration:

1409096

This affected the following samples:

1423608-BLK1

1423608-BS1

1423608-BSD1

1423608-MS1

1423608-MSD1

1423609-BLK1

1423609-BS1

1423609-BSD1

1423609-MS1

1423609-MSD1

1423746-BLK1

1423746-BS1

1423746-BSD1

B-12BI

B-5DI

B6AD

B8AD

B9AI

B9AID

NBW-L

NBW-U

ODW-L

ODW-U

P-20

QB-4

S410947-ICV1

S411361-CCV1

S411362-CCV1

S411412-CCV1

Trip Blk

S410947-ICV1

Analyte percent recovery is outside individual acceptance criteria (80-120).

Isopropylbenzene (126%)



SW846 8260C

Calibration:

S410947-ICV1


1423608-BLK1

1423608-BS1

1423608-BSD1

1423608-MS1

1423608-MSD1

1423609-BLK1

1423609-BS1

1423609-BSD1

1423609-MS1

1423609-MSD1

1423746-BLK1

1423746-BS1

1423746-BSD1

B-12BI

B-5DI

B6AD

B8AD

B9AI

B9AID

NBW-L

NBW-U

ODW-L

ODW-U

P-20

QB-4

S411361-CCV1

S411362-CCV1

S411412-CCV1

Trip Blk

Laboratory Control Samples:

1423608 BS/BSD

Ethanol percent recoveries (147/136) are outside individual acceptance criteria (70-130), but within overall method allowances.

All reported results of the following samples are considered to have a potentially high bias:

B-12BI

B-5DI

B8AD

NBW-L

NBW-U

ODW-U

1423609 BS/BSD



B6AD

B9AI

B9AID

P-20

QB-4

Trip Blk

1423746 BS/BSD



SW846 8260C

Laboratory Control Samples:

1423746 BS/BSD



B6AD

B8AD

ODW-L

Spikes:

1423608-MS1 Source: SB97410-03

Analyte out of acceptance range in QC spike but no reportable concentration present in sample.

Ethanol

1423608-MSD1 Source: SB97410-03


Ethanol

1423609-MS1 Source: SB97410-08


Ethanol

The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS

recovery.

2,2-Dichloropropane

Carbon tetrachloride

Dichlorodifluoromethane (Freon12)

trans-1,2-Dichloroethene

1423609-MSD1 Source: SB97410-08


Ethanol

The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS

recovery.

2,2-Dichloropropane

Dichlorodifluoromethane (Freon12)

Samples:

S411361-CCV1

Analyte percent difference is outside individual acceptance criteria (20), but within overall method allowances.

Carbon disulfide (24.2%)

Ethanol (40.3%)



SW846 8260C

Samples:

S411361-CCV1


1423608-BLK1

1423608-BS1

1423608-BSD1

1423608-MS1

1423608-MSD1

B-12BI

B-5DI

B8AD

NBW-L

NBW-U

ODW-U

S411362-CCV1


Ethanol (44.1%)

Ethyl tert-butyl ether (-21.8%)

Methyl tert-butyl ether (-24.6%)


1423609-BLK1

1423609-BS1

1423609-BSD1

1423609-MS1

1423609-MSD1

B6AD

B9AI

B9AID

P-20

QB-4

Trip Blk

S411412-CCV1


Carbon disulfide (24.4%)

Ethanol (43.6%)

Ethyl tert-butyl ether (-24.0%)

Methyl tert-butyl ether (-25.3%)

Analyte percent drift is outside individual acceptance criteria (20), but within overall method allowances.

4-Methyl-2-pentanone (MIBK) (-20.2%)

Naphthalene (-22.7%)


1423746-BLK1

1423746-BS1

1423746-BSD1

B6AD

B8AD

ODW-L

SB97410-03 B8AD



SW846 8260C

Samples:

SB97410-03 B8AD

Sample data reported for QC purposes only.

SB97410-03RE1 B8AD

Sample dilution required for high concentration of target analytes to be within the instrument calibration range.

SB97410-04 NBW-L


SB97410-06 B-5DI


SB97410-07 B-12BI


SB97410-08 B6AD

Sample data reported for QC purposes only.

SB97410-08RE1 B6AD


SB97410-09 B9AI


SB97410-10 P-20


SB97410-11 B9AID


SW846 8270D

Samples:

SB97410-06 B-5DI

Base/Neutral surrogate recovery outside of control limits. The data was accepted based on valid recovery of remaining two

base/neutral surrogates.

Nitrobenzene-d5

SB97410-09 B9AI

The Reporting Limit for this analyte has been raised to account for interference from coeluting organic compounds present in the

sample.

Dimethyl formamide



Sample Acceptance Check Form

Client:

Work Order:

Project:

Sample(s) received on:

Tetra Tech, Inc. - Framingham, MA

UCC - So Hope, ME / 2420

SB97410

10/2/2014

Were samples properly labeled (labels affixed to sample containers and include sample ID, site

location, and/or project number and the collection date)?

ü

Yes No N/A

Were sample containers received intact?

Were samples accompanied by a Chain of Custody document?

Did sample container labels agree with Chain of Custody document?

Were samples received within method-specific holding times?

Were samples received at a temperature of 6°C?

Were samples cooled on ice upon transfer to laboratory representative?

Were custody seals present?

Were custody seals intact?

ü

ü

ü

ü

ü

ü

ü

ü

The following outlines the condition of samples for the attached Chain of Custody upon receipt.

Does Chain of Custody document include proper, full, and complete documentation, which shall

include sample ID, site location, and/or project number, date and time of collection, collector's name,

preservation type, sample matrix and any special remarks concerning the sample?

ü

7.

6.

8.

9.

10.

11.

3.

4.

1.

2.

5. Were samples refrigerated upon transfer to laboratory representative? ü



ODW-U

Sample IdentificationMatrix

30-Sep-14 08:30

Collection Date/Time Received

02-Oct-14

Client Project #

2420 Ground WaterSB97410-01

Result AnalyzedMethod Ref. Cert.BatchPreparedDilutionAnalyte(s) Units *RDLFlagCAS No. AnalystMDL

Volatile Organic Compounds

Volatile Organic Compounds by SW846 8260

Prepared by method SW846 5030 Water MS

SW846 8260C 07-Oct-1407-Oct-14µg/l 1.0< 1.0 X76-13-1 1,1,2-Trichlorotrifluoroetha

ne (Freon 113)

1 1423608GMA0.7

" ""µg/l 10.0< 10.0 X67-64-1 Acetone 1 ""3.6

" ""µg/l 0.5< 0.5 X107-13-1 Acrylonitrile 1 ""0.5

" ""µg/l 1.0< 1.0 X71-43-2 Benzene 1 ""0.3

" ""µg/l 1.0< 1.0 X108-86-1 Bromobenzene 1 ""0.3

" ""µg/l 1.0< 1.0 X74-97-5 Bromochloromethane 1 ""0.3

" ""µg/l 0.5< 0.5 X75-27-4 Bromodichloromethane 1 ""0.4

" ""µg/l 1.0< 1.0 X75-25-2 Bromoform 1 ""0.6

" ""µg/l 2.0< 2.0 X74-83-9 Bromomethane 1 ""0.5

" ""µg/l 10.0< 10.0 X78-93-3 2-Butanone (MEK) 1 ""3.1

" ""µg/l 1.0< 1.0 X104-51-8 n-Butylbenzene 1 ""0.4

" ""µg/l 1.0< 1.0 X135-98-8 sec-Butylbenzene 1 ""0.4

" ""µg/l 1.0< 1.0 X98-06-6 tert-Butylbenzene 1 ""0.4

" ""µg/l 2.0< 2.0 X75-15-0 Carbon disulfide 1 ""0.7

" ""µg/l 1.0< 1.0 X56-23-5 Carbon tetrachloride 1 ""0.4

" ""µg/l 1.0< 1.0 X108-90-7 Chlorobenzene 1 ""0.3

" ""µg/l 2.0< 2.0 X75-00-3 Chloroethane 1 ""0.7

" ""µg/l 1.0< 1.0 X67-66-3 Chloroform 1 ""0.5

" ""µg/l 2.0< 2.0 X74-87-3 Chloromethane 1 ""0.5

" ""µg/l 1.0< 1.0 X95-49-8 2-Chlorotoluene 1 ""0.4


" ""µg/l 2.0< 2.0 X96-12-8 1,2-Dibromo-3-chloroprop

ane

1 ""0.5

" ""µg/l 0.5< 0.5 X124-48-1 Dibromochloromethane 1 ""0.4

" ""µg/l 0.5< 0.5 X106-93-4 1,2-Dibromoethane (EDB) 1 ""0.3

" ""µg/l 1.0< 1.0 X74-95-3 Dibromomethane 1 ""0.4

" ""µg/l 1.0< 1.0 X95-50-1 1,2-Dichlorobenzene 1 ""0.4



" ""µg/l 2.0< 2.0 X75-71-8 Dichlorodifluoromethane

(Freon12)

1 ""0.6

" ""µg/l 1.06.7 X75-34-3 1,1-Dichloroethane 1 ""0.3

" ""µg/l 1.0< 1.0 X107-06-2 1,2-Dichloroethane 1 ""0.3

" ""µg/l 1.0< 1.0 X75-35-4 1,1-Dichloroethene 1 ""0.5

" ""µg/l 1.0< 1.0 X156-59-2 cis-1,2-Dichloroethene 1 ""0.4

" ""µg/l 1.0< 1.0 X156-60-5 trans-1,2-Dichloroethene 1 ""0.5

" ""µg/l 1.0< 1.0 X78-87-5 1,2-Dichloropropane 1 ""0.3



" ""µg/l 1.0< 1.0 X563-58-6 1,1-Dichloropropene 1 ""0.4

" ""µg/l 0.5< 0.5 X10061-01-5 cis-1,3-Dichloropropene 1 ""0.4

" ""µg/l 0.5< 0.5 X10061-02-6 trans-1,3-Dichloropropene 1 ""0.5

" ""µg/l 1.0< 1.0 X100-41-4 Ethylbenzene 1 ""0.4

" ""µg/l 0.5< 0.5 X87-68-3 Hexachlorobutadiene 1 ""0.4

" ""µg/l 10.0< 10.0 X591-78-6 2-Hexanone (MBK) 1 ""2.0



ODW-U


30-Sep-14 08:30


02-Oct-14

Client Project #






SW846 8260C 07-Oct-1407-Oct-14µg/l 1.0< 1.0 X98-82-8 Isopropylbenzene 1 1423608GMA0.5

" ""µg/l 1.0< 1.0 X99-87-6 4-Isopropyltoluene 1 ""0.5

" ""µg/l 1.0< 1.0 X1634-04-4 Methyl tert-butyl ether 1 ""0.4

" ""µg/l 10.0< 10.0 X108-10-1 4-Methyl-2-pentanone

(MIBK)

1 ""2.5

" ""µg/l 2.0< 2.0 X75-09-2 Methylene chloride 1 ""0.5

" ""µg/l 1.0< 1.0 X91-20-3 Naphthalene 1 ""0.5

" ""µg/l 1.0< 1.0 X103-65-1 n-Propylbenzene 1 ""0.4

" ""µg/l 1.0< 1.0 X100-42-5 Styrene 1 ""0.4

" ""µg/l 1.0< 1.0 X630-20-6 1,1,1,2-Tetrachloroethane 1 ""0.4


" ""µg/l 1.0< 1.0 X127-18-4 Tetrachloroethene 1 ""0.6

" ""µg/l 1.0< 1.0 X108-88-3 Toluene 1 ""0.3

" ""µg/l 1.0< 1.0 X87-61-6 1,2,3-Trichlorobenzene 1 ""0.8


" ""µg/l 1.0< 1.0108-70-3 1,3,5-Trichlorobenzene 1 ""0.6

" ""µg/l 1.0< 1.0 X71-55-6 1,1,1-Trichloroethane 1 ""0.4


" ""µg/l 1.0< 1.0 X79-01-6 Trichloroethene 1 ""0.4

" ""µg/l 1.0< 1.0 X75-69-4 Trichlorofluoromethane

(Freon 11)

1 ""0.8

" ""µg/l 1.0< 1.0 X96-18-4 1,2,3-Trichloropropane 1 ""0.3

" ""µg/l 1.0< 1.0 X95-63-6 1,2,4-Trimethylbenzene 1 ""0.3


" ""µg/l 1.0< 1.0 X75-01-4 Vinyl chloride 1 ""1.0

" ""µg/l 2.0< 2.0 X179601-23-1 m,p-Xylene 1 ""0.4

" ""µg/l 1.0< 1.0 X95-47-6 o-Xylene 1 ""0.4

" ""µg/l 2.0< 2.0109-99-9 Tetrahydrofuran 1 ""0.8

" ""µg/l 1.0< 1.0 X60-29-7 Ethyl ether 1 ""0.5

" ""µg/l 1.0< 1.0 X994-05-8 Tert-amyl methyl ether 1 ""0.3

" ""µg/l 1.0< 1.0 X637-92-3 Ethyl tert-butyl ether 1 ""0.4

" ""µg/l 1.0< 1.0 X108-20-3 Di-isopropyl ether 1 ""0.3

" ""µg/l 10.038.4 X75-65-0 Tert-Butanol / butyl

alcohol

1 ""8.9

" ""µg/l 20.0< 20.0 X123-91-1 1,4-Dioxane 1 ""14.6

" ""µg/l 5.0< 5.0 X110-57-6 trans-1,4-Dichloro-2-buten

e

1 ""1.0

" ""µg/l 400< 400 X64-17-5 Ethanol 1 ""80.8

Surrogate recoveries:

70-130 % " " ""4-Bromofluorobenzene 90 "460-00-4

70-130 % " " ""Toluene-d8 100 "2037-26-5

70-130 % " " ""1,2-Dichloroethane-d4 106 "17060-07-0

70-130 % " " ""Dibromofluoromethane 113 "1868-53-7

Semivolatile Organic Compounds by GCMS

Semivolatile Organic Compounds

Prepared by method SW846 3510C



ODW-U


30-Sep-14 08:30


02-Oct-14

Client Project #






SW846 8270D 16-Oct-1407-Oct-14µg/l 5.10< 5.1068-12-2 Dimethyl formamide 1 1423602ML5.10


30-130 % " " ""2-Fluorobiphenyl 63 "321-60-8

15-110 % " " ""2-Fluorophenol 47 "367-12-4

30-130 % " " ""Nitrobenzene-d5 68 "4165-60-0

15-110 % " " ""Phenol-d5 32 "4165-62-2

30-130 % " " ""Terphenyl-dl4 88 "1718-51-0

15-110 % " " ""2,4,6-Tribromophenol 82 "118-79-6



ODW-L


30-Sep-14 09:25


02-Oct-14

Client Project #







ne (Freon 113)

1 1423746GMA0.7

" ""µg/l 10.0< 10.0 X67-64-1 Acetone 1 ""3.6


" ""µg/l 1.0< 1.0 X71-43-2 Benzene 1 ""0.3




" ""µg/l 1.0< 1.0 X75-25-2 Bromoform 1 ""0.6









" ""µg/l 2.02.7 X75-00-3 Chloroethane 1 ""0.7

" ""µg/l 1.0< 1.0 X67-66-3 Chloroform 1 ""0.5





ane

1 ""0.5








(Freon12)

1 ""0.6




" ""µg/l 1.01.1 X156-59-2 cis-1,2-Dichloroethene 1 ""0.4













ODW-L


30-Sep-14 09:25


02-Oct-14

Client Project #










(MIBK)

1 ""2.5




" ""µg/l 1.0< 1.0 X100-42-5 Styrene 1 ""0.4




" ""µg/l 1.0< 1.0 X108-88-3 Toluene 1 ""0.3








(Freon 11)

1 ""0.8





" ""µg/l 2.0< 2.0 X179601-23-1 m,p-Xylene 1 ""0.4

" ""µg/l 1.0< 1.0 X95-47-6 o-Xylene 1 ""0.4


" ""µg/l 1.0< 1.0 X60-29-7 Ethyl ether 1 ""0.5




" ""µg/l 10.0626 X75-65-0 Tert-Butanol / butyl

alcohol

1 ""8.9

" ""µg/l 20.0< 20.0 X123-91-1 1,4-Dioxane 1 ""14.6


e

1 ""1.0

" ""µg/l 400< 400 X64-17-5 Ethanol 1 ""80.8



70-130 % " " ""Toluene-d8 99 "2037-26-5








ODW-L


30-Sep-14 09:25


02-Oct-14

Client Project #








30-130 % " " ""2-Fluorobiphenyl 68 "321-60-8

15-110 % " " ""2-Fluorophenol 49 "367-12-4

30-130 % " " ""Nitrobenzene-d5 72 "4165-60-0

15-110 % " " ""Phenol-d5 33 "4165-62-2

30-130 % " " ""Terphenyl-dl4 87 "1718-51-0

15-110 % " " ""2,4,6-Tribromophenol 85 "118-79-6



B8AD


30-Sep-14 10:15


02-Oct-14

Client Project #




Volatile Organic Compounds by SW846 8260 QCR


SW846 8260C 07-Oct-1407-Oct-14µg/l 20.0D< 20.0 X76-13-1 1,1,2-Trichlorotrifluoroetha

ne (Freon 113)

20 1423608GMA13.9

" ""µg/l 200D< 200 X67-64-1 Acetone 20 ""72.2

" ""µg/l 10.0D< 10.0 X107-13-1 Acrylonitrile 20 ""10.0

" ""µg/l 20.0D< 20.0 X71-43-2 Benzene 20 ""6.3

" ""µg/l 20.0D< 20.0 X108-86-1 Bromobenzene 20 ""6.5

" ""µg/l 20.0D< 20.0 X74-97-5 Bromochloromethane 20 ""6.0

" ""µg/l 10.0D< 10.0 X75-27-4 Bromodichloromethane 20 ""7.1

" ""µg/l 20.0D< 20.0 X75-25-2 Bromoform 20 ""12.7

" ""µg/l 40.0D< 40.0 X74-83-9 Bromomethane 20 ""9.2

" ""µg/l 200D< 200 X78-93-3 2-Butanone (MEK) 20 ""62.2

" ""µg/l 20.0D< 20.0 X104-51-8 n-Butylbenzene 20 ""8.2

" ""µg/l 20.0D< 20.0 X135-98-8 sec-Butylbenzene 20 ""8.2

" ""µg/l 20.0D< 20.0 X98-06-6 tert-Butylbenzene 20 ""7.4

" ""µg/l 40.0D< 40.0 X75-15-0 Carbon disulfide 20 ""15.0

" ""µg/l 20.0D< 20.0 X56-23-5 Carbon tetrachloride 20 ""8.6

" ""µg/l 20.0D< 20.0 X108-90-7 Chlorobenzene 20 ""6.4

" ""µg/l 40.0D< 40.0 X75-00-3 Chloroethane 20 ""14.2

" ""µg/l 20.0D< 20.0 X67-66-3 Chloroform 20 ""9.4

" ""µg/l 40.0D< 40.0 X74-87-3 Chloromethane 20 ""9.9

" ""µg/l 20.0D< 20.0 X95-49-8 2-Chlorotoluene 20 ""8.5


" ""µg/l 40.0D< 40.0 X96-12-8 1,2-Dibromo-3-chloroprop

ane

20 ""10.0

" ""µg/l 10.0D< 10.0 X124-48-1 Dibromochloromethane 20 ""7.2

" ""µg/l 10.0D< 10.0 X106-93-4 1,2-Dibromoethane (EDB) 20 ""6.4

" ""µg/l 20.0D< 20.0 X74-95-3 Dibromomethane 20 ""8.4

" ""µg/l 20.0D< 20.0 X95-50-1 1,2-Dichlorobenzene 20 ""8.5



" ""µg/l 40.0D< 40.0 X75-71-8 Dichlorodifluoromethane

(Freon12)

20 ""12.9

" ""µg/l 20.0D447 X75-34-3 1,1-Dichloroethane 20 ""5.6

" ""µg/l 20.0D< 20.0 X107-06-2 1,2-Dichloroethane 20 ""6.1

" ""µg/l 20.0D< 20.0 X75-35-4 1,1-Dichloroethene 20 ""9.4

" ""µg/l 20.0D< 20.0 X156-59-2 cis-1,2-Dichloroethene 20 ""7.7

" ""µg/l 20.0D< 20.0 X156-60-5 trans-1,2-Dichloroethene 20 ""9.3

" ""µg/l 20.0D< 20.0 X78-87-5 1,2-Dichloropropane 20 ""6.3



" ""µg/l 20.0D< 20.0 X563-58-6 1,1-Dichloropropene 20 ""8.1

" ""µg/l 10.0D< 10.0 X10061-01-5 cis-1,3-Dichloropropene 20 ""8.1

" ""µg/l 10.0D< 10.0 X10061-02-6 trans-1,3-Dichloropropene 20 ""9.4

" ""µg/l 20.0D< 20.0 X100-41-4 Ethylbenzene 20 ""8.3

" ""µg/l 10.0D< 10.0 X87-68-3 Hexachlorobutadiene 20 ""8.9

" ""µg/l 200D< 200 X591-78-6 2-Hexanone (MBK) 20 ""40.4



B8AD


30-Sep-14 10:15


02-Oct-14

Client Project #






SW846 8260C 07-Oct-1407-Oct-14µg/l 20.0D< 20.0 X98-82-8 Isopropylbenzene 20 1423608GMA9.5

" ""µg/l 20.0D< 20.0 X99-87-6 4-Isopropyltoluene 20 ""9.8

" ""µg/l 20.0D< 20.0 X1634-04-4 Methyl tert-butyl ether 20 ""7.4

" ""µg/l 200D< 200 X108-10-1 4-Methyl-2-pentanone

(MIBK)

20 ""49.4

" ""µg/l 40.0D< 40.0 X75-09-2 Methylene chloride 20 ""9.9

" ""µg/l 20.0D< 20.0 X91-20-3 Naphthalene 20 ""10.7

" ""µg/l 20.0D< 20.0 X103-65-1 n-Propylbenzene 20 ""8.6

" ""µg/l 20.0D< 20.0 X100-42-5 Styrene 20 ""7.1

" ""µg/l 20.0D< 20.0 X630-20-6 1,1,1,2-Tetrachloroethane 20 ""8.5


" ""µg/l 20.0D< 20.0 X127-18-4 Tetrachloroethene 20 ""11.5

" ""µg/l 20.0D< 20.0 X108-88-3 Toluene 20 ""5.6

" ""µg/l 20.0D< 20.0 X87-61-6 1,2,3-Trichlorobenzene 20 ""15.5


" ""µg/l 20.0D< 20.0108-70-3 1,3,5-Trichlorobenzene 20 ""11.2

" ""µg/l 20.0D< 20.0 X71-55-6 1,1,1-Trichloroethane 20 ""7.3


" ""µg/l 20.0D< 20.0 X79-01-6 Trichloroethene 20 ""8.8

" ""µg/l 20.0D< 20.0 X75-69-4 Trichlorofluoromethane

(Freon 11)

20 ""15.6

" ""µg/l 20.0D< 20.0 X96-18-4 1,2,3-Trichloropropane 20 ""5.7

" ""µg/l 20.0D< 20.0 X95-63-6 1,2,4-Trimethylbenzene 20 ""6.6


" ""µg/l 20.0D< 20.0 X75-01-4 Vinyl chloride 20 ""19.3

" ""µg/l 40.0D< 40.0 X179601-23-1 m,p-Xylene 20 ""8.3

" ""µg/l 20.0D< 20.0 X95-47-6 o-Xylene 20 ""7.1

" ""µg/l 40.0D< 40.0109-99-9 Tetrahydrofuran 20 ""15.3

" ""µg/l 20.0D< 20.0 X60-29-7 Ethyl ether 20 ""9.5

" ""µg/l 20.0D< 20.0 X994-05-8 Tert-amyl methyl ether 20 ""6.0

" ""µg/l 20.0D< 20.0 X637-92-3 Ethyl tert-butyl ether 20 ""8.6

" ""µg/l 20.0D< 20.0 X108-20-3 Di-isopropyl ether 20 ""6.4

" ""µg/l 200D< 200 X75-65-0 Tert-Butanol / butyl

alcohol

20 ""178

" ""µg/l 400D< 400 X123-91-1 1,4-Dioxane 20 ""293

" ""µg/l 100D< 100 X110-57-6 trans-1,4-Dichloro-2-buten

e

20 ""19.4

" ""µg/l 8000D< 8000 X64-17-5 Ethanol 20 ""1620



70-130 % " " ""Toluene-d8 99 "2037-26-5



Re-analysis of Volatile Organic Compounds

by SW846 8260

GS1




B8AD


30-Sep-14 10:15


02-Oct-14

Client Project #





by SW846 8260

GS1



ne (Freon 113)

10 1423746GMA7.0

" ""µg/l 100D< 100 X67-64-1 Acetone 10 ""36.1


" ""µg/l 10.0D< 10.0 X71-43-2 Benzene 10 ""3.2




" ""µg/l 10.0D< 10.0 X75-25-2 Bromoform 10 ""6.4


" ""µg/l 100D< 100 X78-93-3 2-Butanone (MEK) 10 ""31.1













ane

10 ""5.0








(Freon12)

10 ""6.5
















B8AD


30-Sep-14 10:15


02-Oct-14

Client Project #





by SW846 8260

GS1


SW846 8260C 08-Oct-1408-Oct-14µg/l 100D< 100 X591-78-6 2-Hexanone (MBK) 10 1423746GMA20.2

" ""µg/l 10.0D< 10.0 X98-82-8 Isopropylbenzene 10 ""4.7




(MIBK)

10 ""24.7




" ""µg/l 10.0D< 10.0 X100-42-5 Styrene 10 ""3.6




" ""µg/l 10.0D< 10.0 X108-88-3 Toluene 10 ""2.8








(Freon 11)

10 ""7.8





" ""µg/l 20.0D< 20.0 X179601-23-1 m,p-Xylene 10 ""4.2

" ""µg/l 10.0D< 10.0 X95-47-6 o-Xylene 10 ""3.6

" ""µg/l 20.0D30.8109-99-9 Tetrahydrofuran 10 ""7.7






alcohol

10 ""88.9

" ""µg/l 200D< 200 X123-91-1 1,4-Dioxane 10 ""146

" ""µg/l 50.0D< 50.0 X110-57-6 trans-1,4-Dichloro-2-buten

e

10 ""9.7

" ""µg/l 4000D< 4000 X64-17-5 Ethanol 10 ""808



70-130 % " " ""Toluene-d8 99 "2037-26-5






B8AD


30-Sep-14 10:15


02-Oct-14

Client Project #






SW846 8270D 16-Oct-1407-Oct-14µg/l 5.1065.968-12-2 Dimethyl formamide 1 1423602ML5.10


30-130 % " " ""2-Fluorobiphenyl 50 "321-60-8

15-110 % " " ""2-Fluorophenol 33 "367-12-4

30-130 % " " ""Nitrobenzene-d5 49 "4165-60-0

15-110 % " " ""Phenol-d5 21 "4165-62-2

30-130 % " " ""Terphenyl-dl4 65 "1718-51-0

15-110 % " " ""2,4,6-Tribromophenol 61 "118-79-6



NBW-L


30-Sep-14 10:55


02-Oct-14

Client Project #




Volatile Organic Compounds by SW846 8260 GS1



ne (Freon 113)

5 1423608GMA3.5

" ""µg/l 50.0D< 50.0 X67-64-1 Acetone 5 ""18.0


" ""µg/l 5.0D< 5.0 X71-43-2 Benzene 5 ""1.6




" ""µg/l 5.0D< 5.0 X75-25-2 Bromoform 5 ""3.2


" ""µg/l 50.0D< 50.0 X78-93-3 2-Butanone (MEK) 5 ""15.5













ane

5 ""2.5








(Freon12)

5 ""3.2














" ""µg/l 50.0D< 50.0 X591-78-6 2-Hexanone (MBK) 5 ""10.1



NBW-L


30-Sep-14 10:55


02-Oct-14

Client Project #









" ""µg/l 50.0D< 50.0 X108-10-1 4-Methyl-2-pentanone

(MIBK)

5 ""12.4




" ""µg/l 5.0D< 5.0 X100-42-5 Styrene 5 ""1.8




" ""µg/l 5.0D< 5.0 X108-88-3 Toluene 5 ""1.4








(Freon 11)

5 ""3.9





" ""µg/l 10.0D< 10.0 X179601-23-1 m,p-Xylene 5 ""2.1

" ""µg/l 5.0D< 5.0 X95-47-6 o-Xylene 5 ""1.8






" ""µg/l 50.0D751 X75-65-0 Tert-Butanol / butyl

alcohol

5 ""44.4

" ""µg/l 100D< 100 X123-91-1 1,4-Dioxane 5 ""73.2


e

5 ""4.8

" ""µg/l 2000D< 2000 X64-17-5 Ethanol 5 ""404



70-130 % " " ""Toluene-d8 99 "2037-26-5








NBW-L


30-Sep-14 10:55


02-Oct-14

Client Project #








30-130 % " " ""2-Fluorobiphenyl 66 "321-60-8

15-110 % " " ""2-Fluorophenol 44 "367-12-4

30-130 % " " ""Nitrobenzene-d5 64 "4165-60-0

15-110 % " " ""Phenol-d5 28 "4165-62-2

30-130 % " " ""Terphenyl-dl4 89 "1718-51-0

15-110 % " " ""2,4,6-Tribromophenol 76 "118-79-6



NBW-U


30-Sep-14 11:20


02-Oct-14

Client Project #







ne (Freon 113)

1 1423608GMA0.7

" ""µg/l 10.0< 10.0 X67-64-1 Acetone 1 ""3.6


" ""µg/l 1.0< 1.0 X71-43-2 Benzene 1 ""0.3




" ""µg/l 1.0< 1.0 X75-25-2 Bromoform 1 ""0.6










" ""µg/l 1.0< 1.0 X67-66-3 Chloroform 1 ""0.5





ane

1 ""0.5








(Freon12)

1 ""0.6

















NBW-U


30-Sep-14 11:20


02-Oct-14

Client Project #










(MIBK)

1 ""2.5




" ""µg/l 1.0< 1.0 X100-42-5 Styrene 1 ""0.4




" ""µg/l 1.0< 1.0 X108-88-3 Toluene 1 ""0.3








(Freon 11)

1 ""0.8





" ""µg/l 2.0< 2.0 X179601-23-1 m,p-Xylene 1 ""0.4

" ""µg/l 1.0< 1.0 X95-47-6 o-Xylene 1 ""0.4


" ""µg/l 1.0< 1.0 X60-29-7 Ethyl ether 1 ""0.5




" ""µg/l 10.0< 10.0 X75-65-0 Tert-Butanol / butyl

alcohol

1 ""8.9

" ""µg/l 20.030.8 X123-91-1 1,4-Dioxane 1 ""14.6


e

1 ""1.0

" ""µg/l 400< 400 X64-17-5 Ethanol 1 ""80.8



70-130 % " " ""Toluene-d8 99 "2037-26-5








NBW-U


30-Sep-14 11:20


02-Oct-14

Client Project #








30-130 % " " ""2-Fluorobiphenyl 73 "321-60-8

15-110 % " " ""2-Fluorophenol 47 "367-12-4

30-130 % " " ""Nitrobenzene-d5 73 "4165-60-0

15-110 % " " ""Phenol-d5 32 "4165-62-2

30-130 % " " ""Terphenyl-dl4 93 "1718-51-0

15-110 % " " ""2,4,6-Tribromophenol 86 "118-79-6



B-5DI


30-Sep-14 12:15


02-Oct-14

Client Project #







ne (Freon 113)

5 1423608GMA3.5

" ""µg/l 50.0D< 50.0 X67-64-1 Acetone 5 ""18.0


" ""µg/l 5.0D< 5.0 X71-43-2 Benzene 5 ""1.6




" ""µg/l 5.0D< 5.0 X75-25-2 Bromoform 5 ""3.2


" ""µg/l 50.0D< 50.0 X78-93-3 2-Butanone (MEK) 5 ""15.5













ane

5 ""2.5








(Freon12)

5 ""3.2














" ""µg/l 50.0D< 50.0 X591-78-6 2-Hexanone (MBK) 5 ""10.1



B-5DI


30-Sep-14 12:15


02-Oct-14

Client Project #









" ""µg/l 50.0D< 50.0 X108-10-1 4-Methyl-2-pentanone

(MIBK)

5 ""12.4




" ""µg/l 5.0D< 5.0 X100-42-5 Styrene 5 ""1.8




" ""µg/l 5.0D< 5.0 X108-88-3 Toluene 5 ""1.4








(Freon 11)

5 ""3.9





" ""µg/l 10.0D< 10.0 X179601-23-1 m,p-Xylene 5 ""2.1

" ""µg/l 5.0D< 5.0 X95-47-6 o-Xylene 5 ""1.8

" ""µg/l 10.0D23.2109-99-9 Tetrahydrofuran 5 ""3.8





" ""µg/l 50.0D< 50.0 X75-65-0 Tert-Butanol / butyl

alcohol

5 ""44.4

" ""µg/l 100D389 X123-91-1 1,4-Dioxane 5 ""73.2


e

5 ""4.8

" ""µg/l 2000D< 2000 X64-17-5 Ethanol 5 ""404



70-130 % " " ""Toluene-d8 100 "2037-26-5








B-5DI


30-Sep-14 12:15


02-Oct-14

Client Project #






SW846 8270D 16-Oct-1407-Oct-14µg/l 5.1512.368-12-2 Dimethyl formamide 1 1423602ML5.15


30-130 % " " ""2-Fluorobiphenyl 92 "321-60-8

15-110 % " " ""2-Fluorophenol 53 "367-12-4

30-130 % " " ""SBNNitrobenzene-d5 146 "4165-60-0

15-110 % " " ""Phenol-d5 59 "4165-62-2

30-130 % " " ""Terphenyl-dl4 109 "1718-51-0

15-110 % " " ""2,4,6-Tribromophenol 103 "118-79-6



B-12BI


30-Sep-14 13:10


02-Oct-14

Client Project #







ne (Freon 113)

50 1423608GMA34.8

" ""µg/l 500D< 500 X67-64-1 Acetone 50 ""180


" ""µg/l 50.0D< 50.0 X71-43-2 Benzene 50 ""15.8




" ""µg/l 50.0D< 50.0 X75-25-2 Bromoform 50 ""31.8

" ""µg/l 100D< 100 X74-83-9 Bromomethane 50 ""23.0

" ""µg/l 500D< 500 X78-93-3 2-Butanone (MEK) 50 ""155




" ""µg/l 100D< 100 X75-15-0 Carbon disulfide 50 ""37.4



" ""µg/l 100D< 100 X75-00-3 Chloroethane 50 ""35.6


" ""µg/l 100D< 100 X74-87-3 Chloromethane 50 ""24.8



" ""µg/l 100D< 100 X96-12-8 1,2-Dibromo-3-chloroprop

ane

50 ""25.0







" ""µg/l 100D< 100 X75-71-8 Dichlorodifluoromethane

(Freon12)

50 ""32.4

" ""µg/l 50.0D1,860 X75-34-3 1,1-Dichloroethane 50 ""14.0



" ""µg/l 50.0D92.0 X156-59-2 cis-1,2-Dichloroethene 50 ""19.2








" ""µg/l 50.0D142 X100-41-4 Ethylbenzene 50 ""20.8


" ""µg/l 500D< 500 X591-78-6 2-Hexanone (MBK) 50 ""101



B-12BI


30-Sep-14 13:10


02-Oct-14

Client Project #










(MIBK)

50 ""124

" ""µg/l 100D< 100 X75-09-2 Methylene chloride 50 ""24.7



" ""µg/l 50.0D< 50.0 X100-42-5 Styrene 50 ""17.8




" ""µg/l 50.0D< 50.0 X108-88-3 Toluene 50 ""14.1








(Freon 11)

50 ""39.0





" ""µg/l 100D< 100 X179601-23-1 m,p-Xylene 50 ""20.8

" ""µg/l 50.0D< 50.0 X95-47-6 o-Xylene 50 ""17.8

" ""µg/l 100D< 100109-99-9 Tetrahydrofuran 50 ""38.4






alcohol

50 ""444

" ""µg/l 1000D< 1000 X123-91-1 1,4-Dioxane 50 ""732


e

50 ""48.4

" ""µg/l 20000D< 20000 X64-17-5 Ethanol 50 ""4040



70-130 % " " ""Toluene-d8 99 "2037-26-5








B-12BI


30-Sep-14 13:10


02-Oct-14

Client Project #






SW846 8270D 16-Oct-1407-Oct-14µg/l 26.0D28068-12-2 Dimethyl formamide 5 1423602ML26.0


30-130 % " " ""2-Fluorobiphenyl 71 "321-60-8

15-110 % " " ""2-Fluorophenol 46 "367-12-4

30-130 % " " ""Nitrobenzene-d5 67 "4165-60-0

15-110 % " " ""Phenol-d5 30 "4165-62-2

30-130 % " " ""Terphenyl-dl4 91 "1718-51-0

15-110 % " " ""2,4,6-Tribromophenol 83 "118-79-6



B6AD


30-Sep-14 13:50


02-Oct-14

Client Project #






SW846 8260C 07-Oct-1407-Oct-14µg/l 100D< 100 X76-13-1 1,1,2-Trichlorotrifluoroetha

ne (Freon 113)

100 1423609GMA69.6

" ""µg/l 1000D< 1000 X67-64-1 Acetone 100 ""361


" ""µg/l 100D< 100 X71-43-2 Benzene 100 ""31.7

" ""µg/l 100D< 100 X108-86-1 Bromobenzene 100 ""32.4

" ""µg/l 100D< 100 X74-97-5 Bromochloromethane 100 ""29.9


" ""µg/l 100D< 100 X75-25-2 Bromoform 100 ""63.6



" ""µg/l 100D< 100 X104-51-8 n-Butylbenzene 100 ""41.2

" ""µg/l 100D< 100 X135-98-8 sec-Butylbenzene 100 ""41.0

" ""µg/l 100D< 100 X98-06-6 tert-Butylbenzene 100 ""37.0


" ""µg/l 100D< 100 X56-23-5 Carbon tetrachloride 100 ""43.2

" ""µg/l 100D< 100 X108-90-7 Chlorobenzene 100 ""32.2


" ""µg/l 100D< 100 X67-66-3 Chloroform 100 ""47.1


" ""µg/l 100D< 100 X95-49-8 2-Chlorotoluene 100 ""42.6

" ""µg/l 100D< 100 X106-43-4 4-Chlorotoluene 100 ""34.4


ane

100 ""50.1



" ""µg/l 100D< 100 X74-95-3 Dibromomethane 100 ""42.0

" ""µg/l 100D< 100 X95-50-1 1,2-Dichlorobenzene 100 ""42.7




(Freon12)

100 ""64.7

" ""µg/l 100D2,420 X75-34-3 1,1-Dichloroethane 100 ""27.9

" ""µg/l 100D< 100 X107-06-2 1,2-Dichloroethane 100 ""30.4

" ""µg/l 100D< 100 X75-35-4 1,1-Dichloroethene 100 ""47.2

" ""µg/l 100D118 X156-59-2 cis-1,2-Dichloroethene 100 ""38.4

" ""µg/l 100D< 100 X156-60-5 trans-1,2-Dichloroethene 100 ""46.5

" ""µg/l 100D< 100 X78-87-5 1,2-Dichloropropane 100 ""31.6



" ""µg/l 100D< 100 X563-58-6 1,1-Dichloropropene 100 ""40.4



" ""µg/l 100D2,860 X100-41-4 Ethylbenzene 100 ""41.6





B6AD


30-Sep-14 13:50


02-Oct-14

Client Project #






SW846 8260C 07-Oct-1407-Oct-14µg/l 100D< 100 X98-82-8 Isopropylbenzene 100 1423609GMA47.4

" ""µg/l 100D< 100 X99-87-6 4-Isopropyltoluene 100 ""49.0

" ""µg/l 100D< 100 X1634-04-4 Methyl tert-butyl ether 100 ""36.8


(MIBK)

100 ""247


" ""µg/l 100D< 100 X91-20-3 Naphthalene 100 ""53.7

" ""µg/l 100D< 100 X103-65-1 n-Propylbenzene 100 ""43.0

" ""µg/l 100D< 100 X100-42-5 Styrene 100 ""35.6

" ""µg/l 100D< 100 X630-20-6 1,1,1,2-Tetrachloroethane 100 ""42.7


" ""µg/l 100D< 100 X127-18-4 Tetrachloroethene 100 ""57.3

" ""µg/l 100D< 100 X108-88-3 Toluene 100 ""28.2

" ""µg/l 100D< 100 X87-61-6 1,2,3-Trichlorobenzene 100 ""77.7

" ""µg/l 100D< 100 X120-82-1 1,2,4-Trichlorobenzene 100 ""42.0

" ""µg/l 100D< 100108-70-3 1,3,5-Trichlorobenzene 100 ""55.9

" ""µg/l 100D< 100 X71-55-6 1,1,1-Trichloroethane 100 ""36.4

" ""µg/l 100D< 100 X79-00-5 1,1,2-Trichloroethane 100 ""32.5

" ""µg/l 100D< 100 X79-01-6 Trichloroethene 100 ""44.2

" ""µg/l 100D< 100 X75-69-4 Trichlorofluoromethane

(Freon 11)

100 ""78.0

" ""µg/l 100D< 100 X96-18-4 1,2,3-Trichloropropane 100 ""28.6

" ""µg/l 100D< 100 X95-63-6 1,2,4-Trimethylbenzene 100 ""33.1

" ""µg/l 100D< 100 X108-67-8 1,3,5-Trimethylbenzene 100 ""39.1

" ""µg/l 100D114 X75-01-4 Vinyl chloride 100 ""96.7

" ""µg/l 200D2,110 X179601-23-1 m,p-Xylene 100 ""41.6

" ""µg/l 100D< 100 X95-47-6 o-Xylene 100 ""35.6


" ""µg/l 100D< 100 X60-29-7 Ethyl ether 100 ""47.6

" ""µg/l 100D< 100 X994-05-8 Tert-amyl methyl ether 100 ""30.0

" ""µg/l 100D< 100 X637-92-3 Ethyl tert-butyl ether 100 ""43.0

" ""µg/l 100D< 100 X108-20-3 Di-isopropyl ether 100 ""32.0


alcohol

100 ""889

" ""µg/l 2000D< 2000 X123-91-1 1,4-Dioxane 100 ""1460


e

100 ""96.9

" ""µg/l 40000D< 40000 X64-17-5 Ethanol 100 ""8080



70-130 % " " ""Toluene-d8 98 "2037-26-5




by SW846 8260

GS1




B6AD


30-Sep-14 13:50


02-Oct-14

Client Project #





by SW846 8260

GS1



ne (Freon 113)

50 1423746GMA34.8

" ""µg/l 500D< 500 X67-64-1 Acetone 50 ""180


" ""µg/l 50.0D< 50.0 X71-43-2 Benzene 50 ""15.8




" ""µg/l 50.0D< 50.0 X75-25-2 Bromoform 50 ""31.8















ane

50 ""25.0








(Freon12)

50 ""32.4

" ""µg/l 50.0D2,390 X75-34-3 1,1-Dichloroethane 50 ""14.0



" ""µg/l 50.0D108 X156-59-2 cis-1,2-Dichloroethene 50 ""19.2








" ""µg/l 50.0D2,990 X100-41-4 Ethylbenzene 50 ""20.8




B6AD


30-Sep-14 13:50


02-Oct-14

Client Project #





by SW846 8260

GS1


SW846 8260C 08-Oct-1408-Oct-14µg/l 500D< 500 X591-78-6 2-Hexanone (MBK) 50 1423746GMA101

" ""µg/l 50.0D< 50.0 X98-82-8 Isopropylbenzene 50 ""23.7




(MIBK)

50 ""124




" ""µg/l 50.0D< 50.0 X100-42-5 Styrene 50 ""17.8




" ""µg/l 50.0D< 50.0 X108-88-3 Toluene 50 ""14.1








(Freon 11)

50 ""39.0




" ""µg/l 50.0D96.0 X75-01-4 Vinyl chloride 50 ""48.4

" ""µg/l 100D2,200 X179601-23-1 m,p-Xylene 50 ""20.8

" ""µg/l 50.0D< 50.0 X95-47-6 o-Xylene 50 ""17.8







alcohol

50 ""444

" ""µg/l 1000D< 1000 X123-91-1 1,4-Dioxane 50 ""732


e

50 ""48.4

" ""µg/l 20000D< 20000 X64-17-5 Ethanol 50 ""4040



70-130 % " " ""Toluene-d8 101 "2037-26-5






B6AD


30-Sep-14 13:50


02-Oct-14

Client Project #






SW846 8270D 16-Oct-1407-Oct-14µg/l 5.1510168-12-2 Dimethyl formamide 1 1423602ML5.15


30-130 % " " ""2-Fluorobiphenyl 76 "321-60-8

15-110 % " " ""2-Fluorophenol 26 "367-12-4

30-130 % " " ""Nitrobenzene-d5 71 "4165-60-0

15-110 % " " ""Phenol-d5 32 "4165-62-2

30-130 % " " ""Terphenyl-dl4 94 "1718-51-0

15-110 % " " ""2,4,6-Tribromophenol 87 "118-79-6



B9AI


30-Sep-14 14:30


02-Oct-14

Client Project #







ne (Freon 113)

25 1423609GMA17.4

" ""µg/l 250D842 X67-64-1 Acetone 25 ""90.2


" ""µg/l 25.0D< 25.0 X71-43-2 Benzene 25 ""7.9




" ""µg/l 25.0D< 25.0 X75-25-2 Bromoform 25 ""15.9


" ""µg/l 250D960 X78-93-3 2-Butanone (MEK) 25 ""77.7







" ""µg/l 50.0D268 X75-00-3 Chloroethane 25 ""17.8






ane

25 ""12.5








(Freon12)

25 ""16.2

" ""µg/l 25.0D28.2 X75-34-3 1,1-Dichloroethane 25 ""7.0











" ""µg/l 25.0D33.8 X100-41-4 Ethylbenzene 25 ""10.4





B9AI


30-Sep-14 14:30


02-Oct-14

Client Project #










(MIBK)

25 ""61.8




" ""µg/l 25.0D< 25.0 X100-42-5 Styrene 25 ""8.9




" ""µg/l 25.0D69.0 X108-88-3 Toluene 25 ""7.0








(Freon 11)

25 ""19.5





" ""µg/l 50.0D< 50.0 X179601-23-1 m,p-Xylene 25 ""10.4

" ""µg/l 25.0D< 25.0 X95-47-6 o-Xylene 25 ""8.9







alcohol

25 ""222

" ""µg/l 500D< 500 X123-91-1 1,4-Dioxane 25 ""366


e

25 ""24.2

" ""µg/l 10000D< 10000 X64-17-5 Ethanol 25 ""2020



70-130 % " " ""Toluene-d8 102 "2037-26-5








B9AI


30-Sep-14 14:30


02-Oct-14

Client Project #






SW846 8270D 16-Oct-1407-Oct-14µg/l 714R03< 71468-12-2 Dimethyl formamide 1 1423602ML5.10


30-130 % " " ""2-Fluorobiphenyl 67 "321-60-8

15-110 % " " ""2-Fluorophenol 37 "367-12-4

30-130 % " " ""Nitrobenzene-d5 59 "4165-60-0

15-110 % " " ""Phenol-d5 28 "4165-62-2

30-130 % " " ""Terphenyl-dl4 77 "1718-51-0

15-110 % " " ""2,4,6-Tribromophenol 74 "118-79-6



P-20


30-Sep-14 15:15


02-Oct-14

Client Project #







ne (Freon 113)

50 1423609GMA34.8

" ""µg/l 500D< 500 X67-64-1 Acetone 50 ""180


" ""µg/l 50.0D< 50.0 X71-43-2 Benzene 50 ""15.8




" ""µg/l 50.0D< 50.0 X75-25-2 Bromoform 50 ""31.8















ane

50 ""25.0








(Freon12)

50 ""32.4




" ""µg/l 50.0D1,590 X156-59-2 cis-1,2-Dichloroethene 50 ""19.2

" ""µg/l 50.0D870 X156-60-5 trans-1,2-Dichloroethene 50 ""23.2












P-20


30-Sep-14 15:15


02-Oct-14

Client Project #










(MIBK)

50 ""124




" ""µg/l 50.0D< 50.0 X100-42-5 Styrene 50 ""17.8




" ""µg/l 50.0D< 50.0 X108-88-3 Toluene 50 ""14.1






" ""µg/l 50.0D259 X79-01-6 Trichloroethene 50 ""22.1


(Freon 11)

50 ""39.0





" ""µg/l 100D< 100 X179601-23-1 m,p-Xylene 50 ""20.8

" ""µg/l 50.0D< 50.0 X95-47-6 o-Xylene 50 ""17.8







alcohol

50 ""444

" ""µg/l 1000D< 1000 X123-91-1 1,4-Dioxane 50 ""732


e

50 ""48.4

" ""µg/l 20000D< 20000 X64-17-5 Ethanol 50 ""4040



70-130 % " " ""Toluene-d8 99 "2037-26-5








P-20


30-Sep-14 15:15


02-Oct-14

Client Project #








30-130 % " " ""2-Fluorobiphenyl 74 "321-60-8

15-110 % " " ""2-Fluorophenol 46 "367-12-4

30-130 % " " ""Nitrobenzene-d5 75 "4165-60-0

15-110 % " " ""Phenol-d5 31 "4165-62-2

30-130 % " " ""Terphenyl-dl4 94 "1718-51-0

15-110 % " " ""2,4,6-Tribromophenol 81 "118-79-6



B9AID


30-Sep-14 14:35


02-Oct-14

Client Project #







ne (Freon 113)

25 1423609GMA17.4

" ""µg/l 250D815 X67-64-1 Acetone 25 ""90.2


" ""µg/l 25.0D< 25.0 X71-43-2 Benzene 25 ""7.9




" ""µg/l 25.0D< 25.0 X75-25-2 Bromoform 25 ""15.9


" ""µg/l 250D956 X78-93-3 2-Butanone (MEK) 25 ""77.7







" ""µg/l 50.0D276 X75-00-3 Chloroethane 25 ""17.8






ane

25 ""12.5








(Freon12)

25 ""16.2

" ""µg/l 25.0D27.8 X75-34-3 1,1-Dichloroethane 25 ""7.0











" ""µg/l 25.0D25.0 X100-41-4 Ethylbenzene 25 ""10.4





B9AID


30-Sep-14 14:35


02-Oct-14

Client Project #










(MIBK)

25 ""61.8




" ""µg/l 25.0D< 25.0 X100-42-5 Styrene 25 ""8.9




" ""µg/l 25.0D65.8 X108-88-3 Toluene 25 ""7.0








(Freon 11)

25 ""19.5





" ""µg/l 50.0D< 50.0 X179601-23-1 m,p-Xylene 25 ""10.4

" ""µg/l 25.0D< 25.0 X95-47-6 o-Xylene 25 ""8.9







alcohol

25 ""222

" ""µg/l 500D< 500 X123-91-1 1,4-Dioxane 25 ""366


e

25 ""24.2

" ""µg/l 10000D< 10000 X64-17-5 Ethanol 25 ""2020



70-130 % " " ""Toluene-d8 100 "2037-26-5





QB-4


30-Sep-14 12:30


02-Oct-14

Client Project #

2420 Surface WaterSB97410-12






ne (Freon 113)

1 1423609GMA0.7

" ""µg/l 10.0< 10.0 X67-64-1 Acetone 1 ""3.6


" ""µg/l 1.0< 1.0 X71-43-2 Benzene 1 ""0.3




" ""µg/l 1.0< 1.0 X75-25-2 Bromoform 1 ""0.6










" ""µg/l 1.0< 1.0 X67-66-3 Chloroform 1 ""0.5





ane

1 ""0.5








(Freon12)

1 ""0.6

















QB-4


30-Sep-14 12:30


02-Oct-14

Client Project #










(MIBK)

1 ""2.5




" ""µg/l 1.0< 1.0 X100-42-5 Styrene 1 ""0.4




" ""µg/l 1.0< 1.0 X108-88-3 Toluene 1 ""0.3








(Freon 11)

1 ""0.8





" ""µg/l 2.0< 2.0 X179601-23-1 m,p-Xylene 1 ""0.4

" ""µg/l 1.0< 1.0 X95-47-6 o-Xylene 1 ""0.4


" ""µg/l 1.0< 1.0 X60-29-7 Ethyl ether 1 ""0.5





alcohol

1 ""8.9

" ""µg/l 20.0< 20.0 X123-91-1 1,4-Dioxane 1 ""14.6


e

1 ""1.0

" ""µg/l 400< 400 X64-17-5 Ethanol 1 ""80.8



70-130 % " " ""Toluene-d8 102 "2037-26-5








QB-4


30-Sep-14 12:30


02-Oct-14

Client Project #








30-130 % " " ""2-Fluorobiphenyl 75 "321-60-8

15-110 % " " ""2-Fluorophenol 70 "367-12-4

30-130 % " " ""Nitrobenzene-d5 75 "4165-60-0

15-110 % " " ""Phenol-d5 56 "4165-62-2

30-130 % " " ""Terphenyl-dl4 93 "1718-51-0

15-110 % " " ""2,4,6-Tribromophenol 82 "118-79-6



Trip Blk


30-Sep-14 00:00


02-Oct-14

Client Project #

2420 AqueousSB97410-13






ne (Freon 113)

1 1423609GMA0.7

" ""µg/l 10.0< 10.0 X67-64-1 Acetone 1 ""3.6


" ""µg/l 1.0< 1.0 X71-43-2 Benzene 1 ""0.3




" ""µg/l 1.0< 1.0 X75-25-2 Bromoform 1 ""0.6










" ""µg/l 1.0< 1.0 X67-66-3 Chloroform 1 ""0.5





ane

1 ""0.5








(Freon12)

1 ""0.6

















Trip Blk


30-Sep-14 00:00


02-Oct-14

Client Project #

2420 AqueousSB97410-13









(MIBK)

1 ""2.5




" ""µg/l 1.0< 1.0 X100-42-5 Styrene 1 ""0.4




" ""µg/l 1.0< 1.0 X108-88-3 Toluene 1 ""0.3








(Freon 11)

1 ""0.8





" ""µg/l 2.0< 2.0 X179601-23-1 m,p-Xylene 1 ""0.4

" ""µg/l 1.0< 1.0 X95-47-6 o-Xylene 1 ""0.4


" ""µg/l 1.0< 1.0 X60-29-7 Ethyl ether 1 ""0.5





alcohol

1 ""8.9

" ""µg/l 20.0< 20.0 X123-91-1 1,4-Dioxane 1 ""14.6


e

1 ""1.0

" ""µg/l 400< 400 X64-17-5 Ethanol 1 ""80.8



70-130 % " " ""Toluene-d8 98 "2037-26-5





Volatile Organic Compounds - Quality Control

Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

LimitFlagAnalyte(s) *RDL

Batch 1423608 - SW846 5030 Water MS

Blank (1423608-BLK1) Prepared & Analyzed: 07-Oct-14

µg/l< 1.01,1,2-Trichlorotrifluoroethane (Freon 113) 1.0

µg/l< 10.0Acetone 10.0

µg/l< 0.5Acrylonitrile 0.5

µg/l< 1.0Benzene 1.0

µg/l< 1.0Bromobenzene 1.0

µg/l< 1.0Bromochloromethane 1.0

µg/l< 0.5Bromodichloromethane 0.5

µg/l< 1.0Bromoform 1.0

µg/l< 2.0Bromomethane 2.0

µg/l< 10.02-Butanone (MEK) 10.0

µg/l< 1.0n-Butylbenzene 1.0

µg/l< 1.0sec-Butylbenzene 1.0

µg/l< 1.0tert-Butylbenzene 1.0

µg/l< 2.0Carbon disulfide 2.0

µg/l< 1.0Carbon tetrachloride 1.0

µg/l< 1.0Chlorobenzene 1.0

µg/l< 2.0Chloroethane 2.0

µg/l< 1.0Chloroform 1.0

µg/l< 2.0Chloromethane 2.0

µg/l< 1.02-Chlorotoluene 1.0


µg/l< 2.01,2-Dibromo-3-chloropropane 2.0

µg/l< 0.5Dibromochloromethane 0.5

µg/l< 0.51,2-Dibromoethane (EDB) 0.5

µg/l< 1.0Dibromomethane 1.0

µg/l< 1.01,2-Dichlorobenzene 1.0



µg/l< 2.0Dichlorodifluoromethane (Freon12) 2.0

µg/l< 1.01,1-Dichloroethane 1.0


µg/l< 1.01,1-Dichloroethene 1.0

µg/l< 1.0cis-1,2-Dichloroethene 1.0

µg/l< 1.0trans-1,2-Dichloroethene 1.0

µg/l< 1.01,2-Dichloropropane 1.0



µg/l< 1.01,1-Dichloropropene 1.0

µg/l< 0.5cis-1,3-Dichloropropene 0.5

µg/l< 0.5trans-1,3-Dichloropropene 0.5

µg/l< 1.0Ethylbenzene 1.0

µg/l< 0.5Hexachlorobutadiene 0.5

µg/l< 10.02-Hexanone (MBK) 10.0

µg/l< 1.0Isopropylbenzene 1.0

µg/l< 1.04-Isopropyltoluene 1.0

µg/l< 1.0Methyl tert-butyl ether 1.0

µg/l< 10.04-Methyl-2-pentanone (MIBK) 10.0

µg/l< 2.0Methylene chloride 2.0

µg/l< 1.0Naphthalene 1.0

µg/l< 1.0n-Propylbenzene 1.0

µg/l< 1.0Styrene 1.0

µg/l< 1.01,1,1,2-Tetrachloroethane 1.0




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD





µg/l< 1.0Tetrachloroethene 1.0

µg/l< 1.0Toluene 1.0

µg/l< 1.01,2,3-Trichlorobenzene 1.0



µg/l< 1.01,1,1-Trichloroethane 1.0


µg/l< 1.0Trichloroethene 1.0

µg/l< 1.0Trichlorofluoromethane (Freon 11) 1.0

µg/l< 1.01,2,3-Trichloropropane 1.0

µg/l< 1.01,2,4-Trimethylbenzene 1.0


µg/l< 1.0Vinyl chloride 1.0

µg/l< 2.0m,p-Xylene 2.0

µg/l< 1.0o-Xylene 1.0

µg/l< 2.0Tetrahydrofuran 2.0

µg/l< 1.0Ethyl ether 1.0

µg/l< 1.0Tert-amyl methyl ether 1.0

µg/l< 1.0Ethyl tert-butyl ether 1.0

µg/l< 1.0Di-isopropyl ether 1.0

µg/l< 10.0Tert-Butanol / butyl alcohol 10.0

µg/l< 20.01,4-Dioxane 20.0

µg/l< 5.0trans-1,4-Dichloro-2-butene 5.0

µg/l< 400Ethanol 400

50.0 70-130Surrogate: 4-Bromofluorobenzene 42.7 µg/l 85

50.0 70-130Surrogate: Toluene-d8 49.6 µg/l 99

50.0 70-130Surrogate: 1,2-Dichloroethane-d4 53.0 µg/l 106

50.0 70-130Surrogate: Dibromofluoromethane 53.2 µg/l 106

LCS (1423608-BS1) Prepared & Analyzed: 07-Oct-14

20.0 70-130µg/l19.5 981,1,2-Trichlorotrifluoroethane (Freon 113)

20.0 70-130µg/l20.1 101Acetone

20.0 70-130µg/l21.2 106Acrylonitrile

20.0 70-130µg/l19.0 95Benzene

20.0 70-130µg/l19.0 95Bromobenzene

20.0 70-130µg/l20.8 104Bromochloromethane

20.0 70-130µg/l19.7 99Bromodichloromethane

20.0 70-130µg/l17.7 88Bromoform

20.0 70-130µg/l20.9 104Bromomethane

20.0 70-130µg/l20.0 1002-Butanone (MEK)

20.0 70-130µg/l17.2 86n-Butylbenzene

20.0 70-130µg/l18.8 94sec-Butylbenzene

20.0 70-130µg/l18.6 93tert-Butylbenzene

20.0 70-130µg/l21.5 107Carbon disulfide

20.0 70-130µg/l16.2 81Carbon tetrachloride

20.0 70-130µg/l19.1 95Chlorobenzene

20.0 70-130µg/l19.2 96Chloroethane

20.0 70-130µg/l19.4 97Chloroform

20.0 70-130µg/l19.5 97Chloromethane

20.0 70-130µg/l18.7 932-Chlorotoluene





Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




20.0 70-130µg/l18.0 901,2-Dibromo-3-chloropropane

20.0 70-130µg/l18.4 92Dibromochloromethane

20.0 70-130µg/l18.9 941,2-Dibromoethane (EDB)

20.0 70-130µg/l19.4 97Dibromomethane

20.0 70-130µg/l19.0 951,2-Dichlorobenzene



20.0 70-130µg/l16.4 82Dichlorodifluoromethane (Freon12)

20.0 70-130µg/l19.6 981,1-Dichloroethane


20.0 70-130µg/l19.1 961,1-Dichloroethene

20.0 70-130µg/l19.9 100cis-1,2-Dichloroethene

20.0 70-130µg/l17.8 89trans-1,2-Dichloroethene

20.0 70-130µg/l19.4 971,2-Dichloropropane



20.0 70-130µg/l17.1 861,1-Dichloropropene

20.0 70-130µg/l19.1 96cis-1,3-Dichloropropene

20.0 70-130µg/l17.4 87trans-1,3-Dichloropropene

20.0 70-130µg/l18.7 94Ethylbenzene

20.0 70-130µg/l20.2 101Hexachlorobutadiene

20.0 70-130µg/l17.8 892-Hexanone (MBK)

20.0 70-130µg/l19.0 95Isopropylbenzene

20.0 70-130µg/l18.1 904-Isopropyltoluene

20.0 70-130µg/l16.6 83Methyl tert-butyl ether

20.0 70-130µg/l17.8 894-Methyl-2-pentanone (MIBK)

20.0 70-130µg/l21.2 106Methylene chloride

20.0 70-130µg/l16.7 84Naphthalene

20.0 70-130µg/l18.3 92n-Propylbenzene

20.0 70-130µg/l18.8 94Styrene

20.0 70-130µg/l17.6 881,1,1,2-Tetrachloroethane


20.0 70-130µg/l17.9 90Tetrachloroethene

20.0 70-130µg/l18.3 92Toluene

20.0 70-130µg/l19.0 951,2,3-Trichlorobenzene



20.0 70-130µg/l17.7 891,1,1-Trichloroethane


20.0 70-130µg/l19.2 96Trichloroethene

20.0 70-130µg/l19.2 96Trichlorofluoromethane (Freon 11)

20.0 70-130µg/l19.8 991,2,3-Trichloropropane

20.0 70-130µg/l19.3 971,2,4-Trimethylbenzene


20.0 70-130µg/l20.7 104Vinyl chloride

20.0 70-130µg/l19.1 95m,p-Xylene

20.0 70-130µg/l19.5 97o-Xylene

20.0 70-130µg/l18.1 90Tetrahydrofuran

20.0 70-130µg/l19.2 96Ethyl ether

20.0 70-130µg/l20.1 101Tert-amyl methyl ether

20.0 70-130µg/l16.2 81Ethyl tert-butyl ether

20.0 70-130µg/l18.2 91Di-isopropyl ether




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




200 70-130µg/l196 98Tert-Butanol / butyl alcohol

200 70-130µg/l190 951,4-Dioxane

20.0 70-130µg/l18.6 93trans-1,4-Dichloro-2-butene

400 70-130µg/lQC2588 147Ethanol





LCS Dup (1423608-BSD1) Prepared & Analyzed: 07-Oct-14

20.0 2070-130 7µg/l18.2 911,1,2-Trichlorotrifluoroethane (Freon 113)

20.0 2070-130 5µg/l19.2 96Acetone

20.0 2070-130 3µg/l21.8 109Acrylonitrile

20.0 2070-130 1µg/l18.8 94Benzene

20.0 2070-130 1µg/l18.8 94Bromobenzene

20.0 2070-130 3µg/l20.2 101Bromochloromethane

20.0 2070-130 3µg/l19.0 95Bromodichloromethane

20.0 2070-130 4µg/l18.5 92Bromoform

20.0 2070-130 4µg/l20.1 100Bromomethane

20.0 2070-130 0.9µg/l20.2 1012-Butanone (MEK)

20.0 2070-130 3µg/l16.7 84n-Butylbenzene

20.0 2070-130 2µg/l18.4 92sec-Butylbenzene

20.0 2070-130 1µg/l18.3 92tert-Butylbenzene

20.0 2070-130 7µg/l20.0 100Carbon disulfide

20.0 2070-130 1µg/l16.4 82Carbon tetrachloride

20.0 2070-130 0.2µg/l19.0 95Chlorobenzene

20.0 2070-130 2µg/l18.8 94Chloroethane

20.0 2070-130 3µg/l18.9 95Chloroform

20.0 2070-130 6µg/l18.4 92Chloromethane

20.0 2070-130 0.4µg/l18.6 932-Chlorotoluene

20.0 2070-130 2µg/l18.6 934-Chlorotoluene

20.0 2070-130 5µg/l18.8 941,2-Dibromo-3-chloropropane

20.0 2070-130 2µg/l18.0 90Dibromochloromethane

20.0 2070-130 2µg/l19.3 961,2-Dibromoethane (EDB)

20.0 2070-130 0.8µg/l19.6 98Dibromomethane

20.0 2070-130 3µg/l18.4 921,2-Dichlorobenzene



20.0 2070-130 4µg/l15.8 79Dichlorodifluoromethane (Freon12)

20.0 2070-130 5µg/l18.7 941,1-Dichloroethane

20.0 2070-130 0.5µg/l19.0 951,2-Dichloroethane

20.0 2070-130 6µg/l18.1 901,1-Dichloroethene

20.0 2070-130 3µg/l19.3 97cis-1,2-Dichloroethene

20.0 2070-130 3µg/l17.3 87trans-1,2-Dichloroethene

20.0 2070-130 4µg/l18.6 931,2-Dichloropropane


20.0 2070-130 0.6µg/l16.9 842,2-Dichloropropane

20.0 2070-130 3µg/l16.6 831,1-Dichloropropene

20.0 2070-130 7µg/l17.7 89cis-1,3-Dichloropropene

20.0 2070-130 0.3µg/l17.4 87trans-1,3-Dichloropropene

20.0 2070-130 3µg/l18.2 91Ethylbenzene

20.0 2070-130 2µg/l19.9 99Hexachlorobutadiene




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




20.0 2070-130 2µg/l18.2 912-Hexanone (MBK)

20.0 2070-130 5µg/l18.2 91Isopropylbenzene

20.0 2070-130 3µg/l17.6 884-Isopropyltoluene

20.0 2070-130 0.1µg/l16.6 83Methyl tert-butyl ether

20.0 2070-130 6µg/l18.9 954-Methyl-2-pentanone (MIBK)

20.0 2070-130 3µg/l20.6 103Methylene chloride

20.0 2070-130 3µg/l16.3 81Naphthalene

20.0 2070-130 0.2µg/l18.3 91n-Propylbenzene

20.0 2070-130 0.5µg/l18.7 93Styrene

20.0 2070-130 7µg/l18.9 941,1,1,2-Tetrachloroethane


20.0 2070-130 2µg/l17.5 88Tetrachloroethene

20.0 2070-130 0.5µg/l18.2 91Toluene

20.0 2070-130 0.4µg/l18.9 941,2,3-Trichlorobenzene

20.0 2070-130 3µg/l16.8 841,2,4-Trichlorobenzene


20.0 2070-130 2µg/l17.3 861,1,1-Trichloroethane


20.0 2070-130 2µg/l19.0 95Trichloroethene

20.0 2070-130 3µg/l18.6 93Trichlorofluoromethane (Freon 11)

20.0 2070-130 2µg/l20.2 1011,2,3-Trichloropropane

20.0 2070-130 4µg/l18.5 921,2,4-Trimethylbenzene

20.0 2070-130 0.5µg/l18.9 941,3,5-Trimethylbenzene

20.0 2070-130 8µg/l19.2 96Vinyl chloride

20.0 2070-130 5µg/l18.2 91m,p-Xylene

20.0 2070-130 1µg/l19.3 96o-Xylene

20.0 2070-130 0.9µg/l18.2 91Tetrahydrofuran

20.0 2070-130 0.4µg/l19.1 95Ethyl ether

20.0 2070-130 0.5µg/l20.0 100Tert-amyl methyl ether

20.0 2070-130 0.2µg/l16.1 81Ethyl tert-butyl ether

20.0 2070-130 2µg/l18.6 93Di-isopropyl ether

200 2070-130 0.5µg/l195 98Tert-Butanol / butyl alcohol

200 2070-130 0.07µg/l190 951,4-Dioxane

20.0 2070-130 3µg/l19.2 96trans-1,4-Dichloro-2-butene

400 2070-130 8µg/lQC2543 136Ethanol





Matrix Spike (1423608-MS1) Prepared & Analyzed: 07-Oct-14Source: SB97410-03

20.0 70-130µg/lD BRL18.7 941,1,2-Trichlorotrifluoroethane (Freon 113)

20.0 70-130µg/lD BRL23.1 115Acetone

20.0 70-130µg/lD BRL22.6 113Acrylonitrile

20.0 70-130µg/lD BRL18.4 92Benzene

20.0 70-130µg/lD BRL18.1 90Bromobenzene

20.0 70-130µg/lD BRL20.3 101Bromochloromethane

20.0 70-130µg/lD BRL20.0 100Bromodichloromethane

20.0 70-130µg/lD BRL15.9 80Bromoform

20.0 70-130µg/lD BRL17.7 89Bromomethane

20.0 70-130µg/lD BRL17.8 892-Butanone (MEK)

20.0 70-130µg/lD BRL18.4 92n-Butylbenzene




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




20.0 70-130µg/lD BRL18.7 94sec-Butylbenzene

20.0 70-130µg/lD BRL17.7 88tert-Butylbenzene

20.0 70-130µg/lD BRL17.2 86Carbon disulfide

20.0 70-130µg/lD BRL15.0 75Carbon tetrachloride

20.0 70-130µg/lD BRL19.0 95Chlorobenzene

20.0 70-130µg/lD BRL19.3 96Chloroethane

20.0 70-130µg/lD BRL20.0 100Chloroform

20.0 70-130µg/lD BRL17.3 86Chloromethane

20.0 70-130µg/lD BRL18.7 942-Chlorotoluene


20.0 70-130µg/lD BRL18.7 941,2-Dibromo-3-chloropropane

20.0 70-130µg/lD BRL18.1 90Dibromochloromethane

20.0 70-130µg/lD BRL19.2 961,2-Dibromoethane (EDB)

20.0 70-130µg/lD BRL20.5 102Dibromomethane

20.0 70-130µg/lD BRL18.4 921,2-Dichlorobenzene



20.0 70-130µg/lD BRL14.2 71Dichlorodifluoromethane (Freon12)

20.0 70-130µg/lD 22.439.1 841,1-Dichloroethane

20.0 70-130µg/lD BRL19.4 971,2-Dichloroethane

20.0 70-130µg/lD BRL17.6 881,1-Dichloroethene

20.0 70-130µg/lD BRL19.8 99cis-1,2-Dichloroethene

20.0 70-130µg/lD BRL14.7 73trans-1,2-Dichloroethene

20.0 70-130µg/lD BRL19.7 981,2-Dichloropropane



20.0 70-130µg/lD BRL15.9 791,1-Dichloropropene

20.0 70-130µg/lD BRL17.5 88cis-1,3-Dichloropropene

20.0 70-130µg/lD BRL16.0 80trans-1,3-Dichloropropene

20.0 70-130µg/lD 0.318.2 90Ethylbenzene

20.0 70-130µg/lD BRL20.6 103Hexachlorobutadiene

20.0 70-130µg/lD BRL17.5 882-Hexanone (MBK)

20.0 70-130µg/lD BRL17.9 89Isopropylbenzene

20.0 70-130µg/lD BRL18.3 924-Isopropyltoluene

20.0 70-130µg/lD BRL14.4 72Methyl tert-butyl ether

20.0 70-130µg/lD BRL17.5 884-Methyl-2-pentanone (MIBK)

20.0 70-130µg/lD BRL21.0 105Methylene chloride

20.0 70-130µg/lD BRL16.9 84Naphthalene

20.0 70-130µg/lD BRL18.2 91n-Propylbenzene

20.0 70-130µg/lD BRL18.5 92Styrene

20.0 70-130µg/lD BRL17.6 881,1,1,2-Tetrachloroethane


20.0 70-130µg/lD BRL16.1 80Tetrachloroethene

20.0 70-130µg/lD 0.418.8 92Toluene

20.0 70-130µg/lD BRL19.7 991,2,3-Trichlorobenzene



20.0 70-130µg/lD BRL16.5 821,1,1-Trichloroethane


20.0 70-130µg/lD BRL17.5 88Trichloroethene

20.0 70-130µg/lD BRL18.6 93Trichlorofluoromethane (Freon 11)

20.0 70-130µg/lD BRL20.1 1011,2,3-Trichloropropane




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




20.0 70-130µg/lD BRL18.7 931,2,4-Trimethylbenzene

20.0 70-130µg/lD BRL18.6 931,3,5-Trimethylbenzene

20.0 70-130µg/lD BRL17.8 89Vinyl chloride

20.0 70-130µg/lD BRL17.9 90m,p-Xylene

20.0 70-130µg/lD BRL19.1 96o-Xylene

20.0 70-130µg/lD 1.919.2 87Tetrahydrofuran

20.0 70-130µg/lD BRL19.5 98Ethyl ether

20.0 70-130µg/lD BRL19.7 98Tert-amyl methyl ether

20.0 70-130µg/lD BRL15.2 76Ethyl tert-butyl ether

20.0 70-130µg/lD BRL18.2 91Di-isopropyl ether

200 70-130µg/lD BRL207 104Tert-Butanol / butyl alcohol

200 70-130µg/lD BRL198 991,4-Dioxane

20.0 70-130µg/lD BRL16.6 83trans-1,4-Dichloro-2-butene

400 70-130µg/lQC2, D BRL597 149Ethanol





Matrix Spike Dup (1423608-MSD1) Prepared & Analyzed: 07-Oct-14Source: SB97410-03

20.0 2070-130 7µg/lD BRL20.0 1001,1,2-Trichlorotrifluoroethane (Freon 113)

20.0 2070-130 5µg/lD BRL21.9 110Acetone

20.0 2070-130 3µg/lD BRL23.2 116Acrylonitrile

20.0 2070-130 5µg/lD BRL19.3 97Benzene

20.0 2070-130 10µg/lD BRL20.1 100Bromobenzene

20.0 2070-130 1µg/lD BRL20.5 103Bromochloromethane

20.0 2070-130 4µg/lD BRL20.9 104Bromodichloromethane

20.0 2070-130 16µg/lD BRL18.6 93Bromoform

20.0 2070-130 6µg/lD BRL18.8 94Bromomethane

20.0 2070-130 5µg/lD BRL16.8 842-Butanone (MEK)

20.0 2070-130 9µg/lD BRL20.2 101n-Butylbenzene

20.0 2070-130 7µg/lD BRL20.0 100sec-Butylbenzene

20.0 2070-130 8µg/lD BRL19.1 95tert-Butylbenzene

20.0 2070-130 9µg/lD BRL18.9 94Carbon disulfide

20.0 2070-130 12µg/lD BRL16.9 85Carbon tetrachloride

20.0 2070-130 4µg/lD BRL19.8 99Chlorobenzene

20.0 2070-130 2µg/lD BRL19.0 95Chloroethane

20.0 2070-130 0.9µg/lD BRL20.2 101Chloroform

20.0 2070-130 0.3µg/lD BRL17.3 87Chloromethane

20.0 2070-130 7µg/lD BRL20.0 1002-Chlorotoluene


20.0 2070-130 0.4µg/lD BRL18.8 941,2-Dibromo-3-chloropropane

20.0 2070-130 8µg/lD BRL19.7 98Dibromochloromethane

20.0 2070-130 5µg/lD BRL20.1 1001,2-Dibromoethane (EDB)

20.0 2070-130 0.4µg/lD BRL20.4 102Dibromomethane

20.0 2070-130 7µg/lD BRL19.7 991,2-Dichlorobenzene



20.0 2070-130 8µg/lD BRL15.5 77Dichlorodifluoromethane (Freon12)

20.0 2070-130 8µg/lD 22.440.5 901,1-Dichloroethane

20.0 2070-130 2µg/lD BRL19.7 991,2-Dichloroethane

20.0 2070-130 3µg/lD BRL18.1 911,1-Dichloroethene




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




20.0 2070-130 2µg/lD BRL20.1 101cis-1,2-Dichloroethene

20.0 2070-130 4µg/lD BRL15.2 76trans-1,2-Dichloroethene

20.0 2070-130 4µg/lD BRL20.4 1021,2-Dichloropropane



20.0 2070-130 4µg/lD BRL16.5 821,1-Dichloropropene

20.0 2070-130 3µg/lD BRL18.0 90cis-1,3-Dichloropropene

20.0 2070-130 2µg/lD BRL16.4 82trans-1,3-Dichloropropene

20.0 2070-130 7µg/lD 0.319.4 96Ethylbenzene

20.0 2070-130 15µg/lD BRL24.0 120Hexachlorobutadiene

20.0 2070-130 1µg/lD BRL17.8 892-Hexanone (MBK)

20.0 2070-130 8µg/lD BRL19.3 96Isopropylbenzene

20.0 2070-130 5µg/lD BRL19.2 964-Isopropyltoluene

20.0 2070-130 3µg/lD BRL14.8 74Methyl tert-butyl ether

20.0 2070-130 6µg/lD BRL18.6 934-Methyl-2-pentanone (MIBK)

20.0 2070-130 2µg/lD BRL21.4 107Methylene chloride

20.0 2070-130 5µg/lD BRL17.7 89Naphthalene

20.0 2070-130 8µg/lD BRL19.6 98n-Propylbenzene

20.0 2070-130 6µg/lD BRL19.7 98Styrene

20.0 2070-130 5µg/lD BRL18.5 931,1,1,2-Tetrachloroethane


20.0 2070-130 9µg/lD BRL17.6 88Tetrachloroethene

20.0 2070-130 3µg/lD 0.419.3 95Toluene

20.0 2070-130 5µg/lD BRL20.8 1041,2,3-Trichlorobenzene



20.0 2070-130 7µg/lD BRL17.7 891,1,1-Trichloroethane

20.0 2070-130 0.4µg/lD BRL20.5 1021,1,2-Trichloroethane

20.0 2070-130 6µg/lD BRL18.7 93Trichloroethene

20.0 2070-130 4µg/lD BRL19.4 97Trichlorofluoromethane (Freon 11)

20.0 2070-130 4µg/lD BRL21.0 1051,2,3-Trichloropropane

20.0 2070-130 4µg/lD BRL19.5 981,2,4-Trimethylbenzene

20.0 2070-130 8µg/lD BRL20.0 1001,3,5-Trimethylbenzene

20.0 2070-130 7µg/lD BRL19.0 95Vinyl chloride

20.0 2070-130 6µg/lD BRL19.0 95m,p-Xylene

20.0 2070-130 7µg/lD BRL20.5 102o-Xylene

20.0 2070-130 4µg/lD 1.918.5 83Tetrahydrofuran

20.0 2070-130 0.8µg/lD BRL19.4 97Ethyl ether

20.0 2070-130 8µg/lD BRL21.4 107Tert-amyl methyl ether

20.0 2070-130 5µg/lD BRL16.0 80Ethyl tert-butyl ether

20.0 2070-130 2µg/lD BRL18.7 93Di-isopropyl ether

200 2070-130 3µg/lD BRL213 107Tert-Butanol / butyl alcohol

200 2070-130 2µg/lD BRL194 971,4-Dioxane

20.0 2070-130 9µg/lD BRL18.2 91trans-1,4-Dichloro-2-butene

400 2070-130 1µg/lQC2, D BRL606 151Ethanol










Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD



























































Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD


























µg/l< 20.01,4-Dioxane 20.0









20.0 70-130µg/l20.2 101Acetone


20.0 70-130µg/l19.1 96Benzene




20.0 70-130µg/l18.9 94Bromoform


20.0 70-130µg/l18.9 942-Butanone (MEK)








20.0 70-130µg/l19.6 98Chloroform







Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

























20.0 70-130µg/l17.5 882-Hexanone (MBK)








20.0 70-130µg/l19.3 96Styrene




20.0 70-130µg/l18.2 91Toluene












20.0 70-130µg/l18.0 90m,p-Xylene

20.0 70-130µg/l19.7 99o-Xylene


20.0 70-130µg/l19.7 98Ethyl ether







Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD





200 70-130µg/l194 971,4-Dioxane


400 70-130µg/lQC2523 131Ethanol







20.0 2070-130 4µg/l19.4 97Acetone


20.0 2070-130 5µg/l20.2 101Benzene


20.0 2070-130 0.1µg/l20.7 103Bromochloromethane


20.0 2070-130 2µg/l19.2 96Bromoform


20.0 2070-130 2µg/l19.4 972-Butanone (MEK)






20.0 2070-130 6µg/l20.5 103Chlorobenzene


20.0 2070-130 3µg/l20.3 101Chloroform






20.0 2070-130 0.6µg/l20.2 1011,2-Dibromoethane (EDB)

20.0 2070-130 1µg/l20.9 104Dibromomethane















20.0 2070-130 3µg/l17.4 87trans-1,3-Dichloropropene


20.0 2070-130 14µg/l23.1 115Hexachlorobutadiene




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




20.0 2070-130 6µg/l18.5 932-Hexanone (MBK)



20.0 2070-130 0.7µg/l15.3 76Methyl tert-butyl ether



20.0 2070-130 3µg/l17.0 85Naphthalene

20.0 2070-130 10µg/l20.3 101n-Propylbenzene

20.0 2070-130 5µg/l20.2 101Styrene




20.0 2070-130 9µg/l19.9 100Toluene





20.0 2070-130 0.6µg/l21.0 1051,1,2-Trichloroethane



20.0 2070-130 0.1µg/l20.4 1021,2,3-Trichloropropane




20.0 2070-130 11µg/l20.0 100m,p-Xylene

20.0 2070-130 5µg/l20.7 103o-Xylene

20.0 2070-130 5µg/l17.6 88Tetrahydrofuran

20.0 2070-130 0.4µg/l19.6 98Ethyl ether

20.0 2070-130 2µg/l20.2 101Tert-amyl methyl ether

20.0 2070-130 6µg/l16.4 82Ethyl tert-butyl ether

20.0 2070-130 5µg/l19.3 96Di-isopropyl ether

200 2070-130 2µg/l199 99Tert-Butanol / butyl alcohol

200 2070-130 3µg/l199 1001,4-Dioxane


400 2070-130 13µg/lQC2598 149Ethanol






20.0 70-130µg/lD BRL14.9 751,1,2-Trichlorotrifluoroethane (Freon 113)

20.0 70-130µg/lD BRL20.4 102Acetone

20.0 70-130µg/lD BRL20.7 103Acrylonitrile

20.0 70-130µg/lD BRL16.8 84Benzene

20.0 70-130µg/lD BRL18.7 94Bromobenzene

20.0 70-130µg/lD BRL19.6 98Bromochloromethane

20.0 70-130µg/lD BRL18.8 94Bromodichloromethane

20.0 70-130µg/lD BRL18.1 90Bromoform

20.0 70-130µg/lD BRL17.1 85Bromomethane

20.0 70-130µg/lD BRL16.4 822-Butanone (MEK)

20.0 70-130µg/lD BRL15.7 78n-Butylbenzene




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




20.0 70-130µg/lD BRL17.0 85sec-Butylbenzene

20.0 70-130µg/lD BRL16.6 83tert-Butylbenzene

20.0 70-130µg/lD 0.314.9 73Carbon disulfide

20.0 70-130µg/lQM7, D BRL13.7 68Carbon tetrachloride

20.0 70-130µg/lD BRL18.0 90Chlorobenzene

20.0 70-130µg/lD BRL15.6 78Chloroethane

20.0 70-130µg/lD BRL17.9 90Chloroform

20.0 70-130µg/lD 0.215.1 74Chloromethane



20.0 70-130µg/lD BRL17.3 871,2-Dibromo-3-chloropropane

20.0 70-130µg/lD BRL18.8 94Dibromochloromethane

20.0 70-130µg/lD BRL18.5 921,2-Dibromoethane (EDB)

20.0 70-130µg/lD BRL18.6 93Dibromomethane




20.0 70-130µg/lQM7, D BRL11.5 57Dichlorodifluoromethane (Freon12)

20.0 70-130µg/lD 24.240.7 821,1-Dichloroethane

20.0 70-130µg/lD BRL18.1 901,2-Dichloroethane

20.0 70-130µg/lD 0.314.9 731,1-Dichloroethene

20.0 70-130µg/lD 1.219.3 90cis-1,2-Dichloroethene

20.0 70-130µg/lQM7, D 0.213.2 65trans-1,2-Dichloroethene



20.0 70-130µg/lQM7, D BRL12.0 602,2-Dichloropropane

20.0 70-130µg/lD BRL14.2 711,1-Dichloropropene

20.0 70-130µg/lD BRL17.6 88cis-1,3-Dichloropropene

20.0 70-130µg/lD BRL16.1 81trans-1,3-Dichloropropene

20.0 70-130µg/lD 28.647.4 94Ethylbenzene

20.0 70-130µg/lD BRL18.9 95Hexachlorobutadiene

20.0 70-130µg/lD BRL16.1 812-Hexanone (MBK)

20.0 70-130µg/lD 0.317.0 83Isopropylbenzene

20.0 70-130µg/lD BRL16.1 814-Isopropyltoluene

20.0 70-130µg/lD BRL14.0 70Methyl tert-butyl ether

20.0 70-130µg/lD BRL16.6 834-Methyl-2-pentanone (MIBK)

20.0 70-130µg/lD BRL19.4 97Methylene chloride

20.0 70-130µg/lD BRL16.5 83Naphthalene

20.0 70-130µg/lD 0.216.4 81n-Propylbenzene

20.0 70-130µg/lD BRL18.6 93Styrene



20.0 70-130µg/lD BRL14.0 70Tetrachloroethene

20.0 70-130µg/lD 0.416.6 81Toluene






20.0 70-130µg/lD 0.216.7 82Trichloroethene

20.0 70-130µg/lD BRL14.5 73Trichlorofluoromethane (Freon 11)

20.0 70-130µg/lD BRL19.3 971,2,3-Trichloropropane




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




20.0 70-130µg/lD 0.317.7 871,2,4-Trimethylbenzene

20.0 70-130µg/lD 0.217.8 881,3,5-Trimethylbenzene

20.0 70-130µg/lD 1.115.7 73Vinyl chloride

20.0 70-130µg/lD 21.139.9 94m,p-Xylene

20.0 70-130µg/lD 0.218.2 90o-Xylene

20.0 70-130µg/lD BRL17.2 86Tetrahydrofuran

20.0 70-130µg/lD BRL17.6 88Ethyl ether

20.0 70-130µg/lD BRL19.2 96Tert-amyl methyl ether

20.0 70-130µg/lD BRL15.2 76Ethyl tert-butyl ether

20.0 70-130µg/lD BRL17.7 88Di-isopropyl ether

200 70-130µg/lD BRL202 101Tert-Butanol / butyl alcohol

200 70-130µg/lD BRL173 871,4-Dioxane

20.0 70-130µg/lD BRL17.7 89trans-1,4-Dichloro-2-butene

400 70-130µg/lQC2, D BRL572 143Ethanol






20.0 2070-130 5µg/lD BRL15.6 781,1,2-Trichlorotrifluoroethane (Freon 113)

20.0 2070-130 0.3µg/lD BRL20.4 102Acetone

20.0 2070-130 5µg/lD BRL21.8 109Acrylonitrile

20.0 2070-130 5µg/lD BRL17.6 88Benzene

20.0 2070-130 2µg/lD BRL19.0 95Bromobenzene

20.0 2070-130 0.1µg/lD BRL19.6 98Bromochloromethane

20.0 2070-130 6µg/lD BRL19.9 100Bromodichloromethane

20.0 2070-130 8µg/lD BRL19.5 98Bromoform

20.0 2070-130 2µg/lD BRL17.4 87Bromomethane

20.0 2070-130 12µg/lD BRL18.5 932-Butanone (MEK)

20.0 2070-130 12µg/lD BRL17.7 88n-Butylbenzene

20.0 2070-130 5µg/lD BRL17.8 89sec-Butylbenzene

20.0 2070-130 4µg/lD BRL17.3 87tert-Butylbenzene

20.0 2070-130 5µg/lD 0.315.6 77Carbon disulfide

20.0 2070-130 8µg/lD BRL14.8 74Carbon tetrachloride

20.0 2070-130 5µg/lD BRL18.9 94Chlorobenzene

20.0 2070-130 3µg/lD BRL16.1 80Chloroethane

20.0 2070-130 6µg/lD BRL19.0 95Chloroform

20.0 2070-130 1µg/lD 0.215.2 75Chloromethane



20.0 2070-130 11µg/lD BRL19.3 971,2-Dibromo-3-chloropropane

20.0 2070-130 2µg/lD BRL19.0 95Dibromochloromethane

20.0 2070-130 4µg/lD BRL19.3 961,2-Dibromoethane (EDB)

20.0 2070-130 4µg/lD BRL19.4 97Dibromomethane




20.0 2070-130 7µg/lQM7, D BRL12.2 61Dichlorodifluoromethane (Freon12)

20.0 2070-130 3µg/lD 24.241.1 841,1-Dichloroethane

20.0 2070-130 3µg/lD BRL18.6 931,2-Dichloroethane

20.0 2070-130 6µg/lD 0.315.8 771,1-Dichloroethene




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




20.0 2070-130 4µg/lD 1.220.1 94cis-1,2-Dichloroethene

20.0 2070-130 13µg/lD 0.215.0 74trans-1,2-Dichloroethene



20.0 2070-130 2µg/lQM7, D BRL11.8 592,2-Dichloropropane

20.0 2070-130 3µg/lD BRL14.6 731,1-Dichloropropene

20.0 2070-130 0.5µg/lD BRL17.5 88cis-1,3-Dichloropropene

20.0 2070-130 3µg/lD BRL16.6 83trans-1,3-Dichloropropene

20.0 2070-130 8µg/lD 28.649.0 102Ethylbenzene

20.0 2070-130 12µg/lD BRL21.3 106Hexachlorobutadiene

20.0 2070-130 13µg/lD BRL18.3 922-Hexanone (MBK)

20.0 2070-130 3µg/lD 0.317.5 86Isopropylbenzene

20.0 2070-130 6µg/lD BRL17.2 864-Isopropyltoluene

20.0 2070-130 7µg/lD BRL15.0 75Methyl tert-butyl ether

20.0 2070-130 0.5µg/lD BRL16.6 834-Methyl-2-pentanone (MIBK)

20.0 2070-130 2µg/lD BRL19.7 98Methylene chloride

20.0 2070-130 5µg/lD BRL17.4 87Naphthalene

20.0 2070-130 6µg/lD 0.217.5 86n-Propylbenzene

20.0 2070-130 2µg/lD BRL18.9 95Styrene



20.0 2070-130 11µg/lD BRL15.6 78Tetrachloroethene

20.0 2070-130 7µg/lD 0.417.8 87Toluene






20.0 2070-130 7µg/lD 0.217.9 88Trichloroethene

20.0 2070-130 7µg/lD BRL15.6 78Trichlorofluoromethane (Freon 11)

20.0 2070-130 8µg/lD BRL21.0 1051,2,3-Trichloropropane

20.0 2070-130 4µg/lD 0.318.5 911,2,4-Trimethylbenzene

20.0 2070-130 3µg/lD 0.218.3 911,3,5-Trimethylbenzene

20.0 2070-130 7µg/lD 1.116.8 78Vinyl chloride

20.0 2070-130 7µg/lD 21.141.3 101m,p-Xylene

20.0 2070-130 5µg/lD 0.219.2 95o-Xylene

20.0 2070-130 5µg/lD BRL18.2 91Tetrahydrofuran

20.0 2070-130 3µg/lD BRL18.2 91Ethyl ether

20.0 2070-130 6µg/lD BRL20.4 102Tert-amyl methyl ether

20.0 2070-130 5µg/lD BRL15.9 80Ethyl tert-butyl ether

20.0 2070-130 3µg/lD BRL18.2 91Di-isopropyl ether

200 2070-130 3µg/lD BRL209 104Tert-Butanol / butyl alcohol

200 2070-130 11µg/lD BRL193 971,4-Dioxane

20.0 2070-130 1µg/lD BRL18.0 90trans-1,4-Dichloro-2-butene

400 2070-130 3µg/lQC2, D BRL553 138Ethanol










Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD



























































Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD


























µg/l< 20.01,4-Dioxane 20.0









20.0 70-130µg/l19.6 98Acetone


20.0 70-130µg/l20.9 104Benzene




20.0 70-130µg/l19.6 98Bromoform


20.0 70-130µg/l18.6 932-Butanone (MEK)








20.0 70-130µg/l21.3 106Chloroform







Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

























20.0 70-130µg/l18.6 932-Hexanone (MBK)








20.0 70-130µg/l21.2 106Styrene




20.0 70-130µg/l20.3 102Toluene












20.0 70-130µg/l20.4 102m,p-Xylene

20.0 70-130µg/l21.7 108o-Xylene


20.0 70-130µg/l21.1 106Ethyl ether







Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD





200 70-130µg/l205 1021,4-Dioxane


400 70-130µg/lQM9564 141Ethanol







20.0 2070-130 1µg/l19.3 97Acetone


20.0 2070-130 4µg/l20.1 101Benzene


20.0 2070-130 3µg/l21.7 108Bromochloromethane


20.0 2070-130 2µg/l19.3 96Bromoform


20.0 2070-130 2µg/l18.3 912-Butanone (MEK)






20.0 2070-130 1µg/l21.0 105Chlorobenzene


20.0 2070-130 5µg/l20.3 102Chloroform






20.0 2070-130 2µg/l20.4 1021,2-Dibromoethane (EDB)

20.0 2070-130 3µg/l21.6 108Dibromomethane



20.0 2070-130 0.5µg/l19.3 971,4-Dichlorobenzene









20.0 2070-130 0.8µg/l18.3 922,2-Dichloropropane



20.0 2070-130 0.06µg/l17.5 87trans-1,3-Dichloropropene


20.0 2070-130 0.4µg/l24.2 121Hexachlorobutadiene




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




20.0 2070-130 1µg/l18.3 922-Hexanone (MBK)



20.0 2070-130 4µg/l15.6 78Methyl tert-butyl ether



20.0 2070-130 4µg/l17.2 86Naphthalene

20.0 2070-130 3µg/l20.4 102n-Propylbenzene

20.0 2070-130 4µg/l20.4 102Styrene




20.0 2070-130 4µg/l19.6 98Toluene








20.0 2070-130 3µg/l21.7 1081,2,3-Trichloropropane




20.0 2070-130 4µg/l19.6 98m,p-Xylene

20.0 2070-130 1µg/l21.5 107o-Xylene

20.0 2070-130 5µg/l17.7 89Tetrahydrofuran

20.0 2070-130 4µg/l20.4 102Ethyl ether

20.0 2070-130 4µg/l21.9 110Tert-amyl methyl ether

20.0 2070-130 3µg/l16.4 82Ethyl tert-butyl ether

20.0 2070-130 0.9µg/l19.2 96Di-isopropyl ether

200 2070-130 0.2µg/l206 103Tert-Butanol / butyl alcohol

200 2070-130 10µg/l185 931,4-Dioxane


400 2070-130 13µg/l495 124Ethanol







Semivolatile Organic Compounds by GCMS - Quality Control

Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD


Batch 1423602 - SW846 3510C

Blank (1423602-BLK1) Prepared: 07-Oct-14 Analyzed: 16-Oct-14

µg/l< 5.00Dimethyl formamide 5.00

50.0 30-130Surrogate: 2-Fluorobiphenyl 27.8 µg/l 56

50.0 15-110Surrogate: 2-Fluorophenol 24.8 µg/l 50

50.0 30-130Surrogate: Nitrobenzene-d5 34.5 µg/l 69

50.0 15-110Surrogate: Phenol-d5 16.0 µg/l 32

50.0 30-130Surrogate: Terphenyl-dl4 43.6 µg/l 87

50.0 15-110Surrogate: 2,4,6-Tribromophenol 37.8 µg/l 76

LCS (1423602-BS1) Prepared: 07-Oct-14 Analyzed: 16-Oct-14

50.0 40-140µg/l42.7 85Dimethyl formamide 5.00







LCS Dup (1423602-BSD1) Prepared: 07-Oct-14 Analyzed: 16-Oct-14

50.0 2040-140 8µg/l39.5 79Dimethyl formamide 5.00







Duplicate (1423602-DUP1) Prepared: 07-Oct-14 Analyzed: 16-Oct-14Source: SB97410-01

20µg/l BRL< 5.10Dimethyl formamide 5.10









Notes and Definitions

Data reported from a dilutionD

Sample dilution required for high concentration of target analytes to be within the instrument calibration range.GS1

Analyte out of acceptance range in QC spike but no reportable concentration present in sample.QC2

Sample data reported for QC purposes only.QCR

The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable

LCS recovery.

QM7

The spike recovery for this QC sample is outside the established control limits. The sample results for the QC batch were

accepted based on LCS/LCSD or SRM recoveries within the control limits.

QM9

The Reporting Limit for this analyte has been raised to account for interference from coeluting organic compounds present

in the sample.

R03

Base/Neutral surrogate recovery outside of control limits. The data was accepted based on valid recovery of remaining two

base/neutral surrogates.

SBN

RPD Relative Percent Difference

dry Sample results reported on a dry weight basis

Not ReportedNR

Laboratory Control Sample (LCS): A known matrix spiked with compound(s) representative of the target analytes, which is used to

document laboratory performance.

Matrix Duplicate: An intra-laboratory split sample which is used to document the precision of a method in a given sample matrix.

Matrix Spike: An aliquot of a sample spiked with a known concentration of target analyte(s). The spiking occurs prior to sample

preparation and analysis. A matrix spike is used to document the bias of a method in a given sample matrix.

Method Blank: An analyte-free matrix to which all reagents are added in the same volumes or proportions as used in sample

processing. The method blank should be carried through the complete sample preparation and analytical procedure. The method blank

is used to document contamination resulting from the analytical process.

Method Detection Limit (MDL): The minimum concentration of a substance that can be measured and reported with 99% confidence

that the analyte concentration is greater than zero and is determined from analysis of a sample in a given matrix type containing the

analyte.

Reportable Detection Limit (RDL): The lowest concentration that can be reliably achieved within specified limits of precision and

accuracy during routine laboratory operating conditions. For many analytes the RDL analyte concentration is selected as the lowest

non-zero standard in the calibration curve. While the RDL is approximately 5 to 10 times the MDL, the RDL for each sample takes

into account the sample volume/weight, extract/digestate volume, cleanup procedures and, if applicable, dry weight correction. Sample

RDLs are highly matrix-dependent.

Surrogate: An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical

process, but which is not normally found in environmental samples. These compounds are spiked into all blanks, standards, and

samples prior to analysis. Percent recoveries are calculated for each surrogate.

Continuing Calibration Verification: The calibration relationship established during the initial calibration must be verified at periodic

intervals. Concentrations, intervals, and criteria are method specific.

Validated by:

Nicole Leja



APPENDIX G

LIMITATIONS

Tetra Tech1

Appendix G: Limitations

1. The observations described in this report were made under the conditions stated therein. Theconclusions presented in the report were based solely upon the services described therein, andnot on scientific tasks or procedures beyond the scope of described services or the time andbudgetary constraints imposed by the CLIENT. The work described in this report wascarried out in accordance with the Terms and Conditions in our contract.

2. In preparing this report, ENGINEER has relied on certain information provided by state andlocal officials and other parties referenced therein, and on information contained in the filesof state and/or local agencies available to ENGINEER at the time of the site assessment.Although there may have been some degree of overlap in the information provided by thesevarious sources, ENGINEER did not attempt to independently verify the accuracy orcompleteness of all information reviewed or received during the course of this siteassessment.

3. Observations were made of the Site and of structures on the Site as indicated within thereport. Where access to portions of the Site or to structures on the Site was unavailable orlimited, ENGINEER renders no opinion as to the presence of hazardous materials or oil, or tothe presence of indirect evidence relating to hazardous material or oil, in that portion of theSite or structure. In addition, ENGINEER renders no opinion as to the presence of hazardousmaterial or oil, or the presence of indirect evidence relating to hazardous material or oil,where direct observation of the interior walls, floor, or ceiling of a structure on a Site wasobstructed by objects or coverings on or over these surfaces.

4. ENGINEER did not perform testing or analyses to determine the presence or concentration ofasbestos at the Site or in the environment at the Site.

5. It is ENGINEER's understanding that the purpose of this report is to assess the physicalcharacteristics of the subject Site with respect to the presence on the Site of hazardousmaterial or oil. This stated purpose has been a significant factor in determining the scope andlevel of services provided for in the Agreement. Should the purpose for which the Report isto be used or the proposed use of the site(s) change, this Report is no longer valid and use ofthis Report by CLIENT or others without ENGINEER's review and written authorizationshall be at the user's sole risk. Should ENGINEER be required to review the Report after itsdate of submission, ENGINEER shall be entitled to additional compensation at then existingrates or such other terms as agreed between ENGINEER and the CLIENT.

6. The conclusions and recommendations contained in this report are based in part, wherenoted, upon the data obtained from a limited number of soil samples obtained from widelyspaced subsurface explorations. The nature and extent of variations between theseexplorations may not become evident until further exploration. If variations or other latentconditions then appear evident, it will be necessary to reevaluate the conclusions andrecommendations of this report.

7. Any water level readings made in test pits, borings, and/or observation wells were made atthe times and under the conditions stated on the report. However, it must be noted thatfluctuations in the level of groundwater may occur due to variations in rainfall and otherfactors different from those prevailing at the time measurements were made.

Tetra Tech2

8. Except as noted within the text of the report, no quantitative laboratory testing was performedas part of the site assessment. Where such analyses have been conducted by an outsidelaboratory, ENGINEER has relied upon the data provided and has not conducted anindependent evaluation of the reliability of these data.

9. The conclusions and recommendations contained in this report are based in part, wherenoted, upon various types of chemical data and are contingent upon their validity. These datahave been reviewed and interpretations made in the report. As indicated within the report,some of these data may be preliminary screening level data and should be confirmed withquantitative analyses if more specific information is necessary. Moreover, it should be notedthat variations in the types and concentrations of contaminants and variations in their flowpaths may occur due to seasonal water table fluctuations, past disposal practices, the passageof time, and other factors. Should additional chemical data become available in the future,these data should be reviewed, and the conclusions and recommendations presented hereinmodified accordingly.

10. Chemical analyses have been performed for specific constituents during the course of thissite assessment, as described in the text. However, it should be noted that additional chemicalconstituents not searched for during the current study may be present in soil and/orgroundwater at the Site.

11. This Report was prepared for the exclusive use of the CLIENT. No other party is entitled torely on the conclusions, observations, specifications, or data contained therein without theexpress written consent of ENGINEER.

12. The observations and conclusions described in this Report are based solely on the Scope ofServices provided pursuant to the Agreement. ENGINEER has not performed any additionalobservations, investigations, studies, or testing not specifically stated therein. ENGINEERshall not be liable for the existence of any condition, the discovery of which required theperformance of services not authorized under the Agreement.

13. The passage of time may result in significant changes in technology, economic conditions, orsite variations that would render the Report inaccurate. Accordingly, neither the CLIENT,nor any other party, shall rely on the information or conclusions contained in this Report aftersix months from its date of submission without the express written consent of ENGINEER.Reliance on the Report after such period of time shall be at the user's sole risk. ShouldENGINEER be required to review the Report after six months from its date of submission,ENGINEER shall be entitled to additional compensation at then existing rates or such otherterms as may be agreed upon between ENGINEER and the CLIENT.

14. ENGINEER has endeavored to perform its services based upon engineering practicesaccepted at the time they were performed. ENGINEER makes no other representations,express or implied, regarding the information, data, analysis, calculations, and conclusionscontained herein.

15. The services provided by ENGINEER do not include legal advice. Legal counsel should beconsulted regarding interpretation of applicable and relevant federal, state, and local statutesand regulations and other legal matters.

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