RECORD OF DECISION (RODS) - Records Collections

Record of Decision

Site 1, Drydock Sediments Baltimore, Maryland

UNITED STATES COAST GUARD YARD

United States Environmental Protection Agency

Region III

Maryland Department of the Environment

CONTENTS

1.0 DECLARATION ..............................................................................................................................1-1 1.1 STATEMENT OF BASIS AND PURPOSE..........................................................................1-1 1.2 DESCRIPTION OF THE DECISION ...................................................................................1-1 1.3 STATUTORY DETERMINATIONS .....................................................................................1-2 1.4 ROD DATA CERTIFICATION CHECKLIST ........................................................................1-2

2.0 DECISION SUMMARY ...................................................................................................................2-1 2.1 SITE NAME, LOCATION, AND DESCRIPTION .................................................................2-1 2.2 SITE HISTORY AND INVESTIGATIONS............................................................................2-1

2.2.1 Site History .............................................................................................................2-1 2.2.2 Site Investigations ...................................................................................................2-2

2.3 COMMUNITY PARTICIPATION..........................................................................................2-5 2.4 SCOPE AND ROLE OF RESPONSE ACTION...................................................................2-5 2.5 SITE CHARACTERISTICS .................................................................................................2-5

2.5.1 Physical Setting......................................................................................................2-5 2.5.2 Conceptual Site Model ...........................................................................................2-6 2.5.3 Nature and Extent of Contamination ......................................................................2-7

2.6 CURRENT AND POTENTIAL FUTURE LAND AND RESOURCE USES ..........................2-8 2.7 SUMMARY OF SITE RISKS ...............................................................................................2-8

2.7.1 Baseline Human Health Risk Assessment Process ...............................................2-9 2.7.2 Baseline Human Health Risk Assessment ...........................................................2-11 2.7.3 Ecological Risk Assessment ................................................................................2-12 2.7.4 Conclusions of Risk Assessments .......................................................................2-14

2.8 NO ACTION DETERMINATION........................................................................................2-14 2.9 DOCUMENTATION OF SIGNIFICANT CHANGES ..........................................................2-14

3.0 RESPONSIVENESS SUMMARY....................................................................................................3-1 3.1 OVERVIEW .........................................................................................................................3-1 3.2 BACKGROUND ON COMMUNITY INVOLVEMENT ..........................................................3-1 3.3 SUMMARY OF COMMENTS RECEIVED DURING THE PUBLIC COMMENT PERIOD AND

COAST GUARD RESPONSES...........................................................................................3-1 LIST OF ACRONYMS AND ABBREVIATIONS REFERENCES Tables 2-1 Occurrence and Distribution of Organics and Inorganics Compounds in Sediment 2-2 Summary of Positive Detections for Sediment 2-3 Occurrence and Distribution of Organic and Inorganic Compounds in Surface Water Samples 2-4 Summary of Positive Detections for Surface Water Samples 2-5 Summary of Estimated Human Health Risks 2-6 Statistical Summary for Surface Water 2-7 Statistical Summary for Sediment Figures 2-1 U.S. Coast Guard Yard and Vicinity 2-2 Facility Map with CERCLA Sites 2-3 Site Location Map 2-4 Human Health Conceptural Site Model 2-5 Total PAHs in Sediment Exceeding the Ecological Screening Criterion 2-6 Total DDT in Sediment Exceeding the Ecological Screening Criterion 2-7 Total Aroclors (PCBs) in Sediment Exceeding the Ecological Screening Criterion

2-8 Cadmium In Sediment Exceeding the Ecological Screening Criterion 2-9 Chromium in Sediment Exceeding the Ecological Screening Criterion 2-10 Copper in Sediment Exceeding the Ecological Screening Criterion 2-11 Lead in Sediment Exceeding the Ecological Screening Criterion 2-12 Mercury in Sediment Exceeding the Ecological Screening Criterion 2-13 Zinc in Sediment Exceeding the Ecological Screening Criterion 2-14 Sediment Results Exceeding the Human Health RBC – Manganese 2-15 Sediment Results Exceeding the Human Health RBC – Chromium 2-16 Sediment Results Exceeding the Human Health RBC – Lead 2-17 Sediment Results Exceeding the Human Health RBC – Benzo (a) Pyrene 2-18 Sediment Results Exceeding the Human Health RBC – Arsenic 2-19 Sediment Results Exceeding the Human Health RBC – Vanadium 2-20 Surface Water Results Exceeding Human Health Screening and Background Levels 2-21 Surface Water Results Exceeding Ecological Risk Screening Levels – 4,4’-DDT, Mercury, and Cyanide 2-22 Total PAHs Exceeding Ecological Screening Values in Sediment 2-23 Total DDTs Exceeding Ecological Screening Values in Sediment 2-24 Total Aroclors (PCBs) Exceeding Ecological Screening Values in Sediment Appendices

A Maryland Department of Environment Concurrence Letter B Transcript of Open Discussion from the Public Information Session for the Proposed Plan, June

28, 2007

RECORD OF DECISION

SITE NAME AND LOCATION

U.S. Coast Guard – Curtis Bay Coast Guard YARD - Baltimore YARD Site 1 – Dry Dock Sediments Baltimore, Maryland EPA ID No. MD4690307844

1.0 DECLARATION

1.1 STATEMENT OF BASIS AND PURPOSE

This Record of Decision (ROD) presents the determination that no action is needed to protect human health and the environment for Site 1 (Drydock Sediments), Curtis Bay Coast Guard Yard (YARD), Baltimore, Maryland. These determinations have been made in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), as amended by the Superfund Amendments and Reauthorization Act (SARA), and the National Oil and Hazardous Substances Pollution Contingency Plan (NCP).

This decision is based on information contained in the Administrative Record file for the YARD. The Maryland Department of the Environment (MDE) concurs with the no action decision. A letter from MDE indicating concurrence is provided in Appendix A.

1.2 DESCRIPTION OF THE DECISION

Site 1, Drydock Sediments, is located in the southernmost portion of the industrial area at the YARD and includes the surface water and bottom sediments around the YARD’s active shipyard, which consists of the facility’s shiplift, drydock, and three piers along Curtis Creek. The Remedial Investigation (RI) for Site 1 included sampling and chemical analysis of 61 sediment and 11 surface water samples. The samples were analyzed for suspected contaminants present at Site 1.

A human health and ecological risk assessment was performed to assess the need for additional sampling, potential remedial actions, or no action. The investigation included the identification of specific chemical constituents and their concentrations in the surface water and sediment at Site 1.

The Site 1 sampling data indicate YARD activities may have impacted sediments to a limited extent; however there were no identified impacts to surface water. An assessment of both direct (e.g., skin contact) and indirect (e.g., fish tissue ingestion) sediment exposure pathways, indicate no unacceptable human health risks are associated with Site 1 sediment.

Potential risks to benthic receptors were identified in the Ecological Risk Assessment for Site 1 based on sediment concentrations of polynuclear aromatic hydrocarbons, polychlorinated biphenyls (PCBs), and one pesticide that exceeded ecological screening values and background concentrations. Impacts of sediment contamination with respect to probable effects to benthic organisms are limited largely to the samples near the bulkhead in the areas between the drydock piers and east of the shiplift. Based on this relatively small area of impacted sediment, there are considered to be no unacceptable risks to ecological receptors at Site 1.

Therefore, no action is recommended for sediment and surface water at Site 1.

2.0 DECISION SUMMARY

2.1 SITE NAME, LOCATION, AND DESCRIPTION

The YARD is located on Hawkins Point Road, approximately 6 miles southeast of downtown Baltimore and 6 miles west of the Chesapeake Bay. Most of the facility lies within Anne Arundel County, with the exception of the northernmost portion, which is within the Baltimore City limits (Figure 2-1). The YARD encompasses approximately 113 acres and is situated in a heavily industrialized area with a manganese ore processor to the east, the Baltimore City landfill to the north, and a trucking company to the west. Curtis Creek forms the southern boundary of the YARD. Arundel Cove, a tributary to Curtis Creek, divides the YARD into two distinct areas. The YARD and associated industries are situated on the western side of the Cove, and a smaller residential and recreational area is located to the east.

Site 1, Drydock Sediments, is located in the southernmost portion of the industrial area at the YARD. Site 1 includes the surface water and bottom sediments around the YARD’s active shipyard, which consists of the facility’s shiplift, drydock, and three piers along Curtis Creek.

The YARD refers to the entire U. S. Coast Guard Baltimore Facility (see Figure 2-1). The YARD consists of 9 CERCLA Sites, one of which is Site 1 (See Figure 2-2). For purposes of this document, these CERCLA Sites will be referred to as "Site" or "Sites", when not referring specifically to Site 1.

The United States Environmental Protection Agency (EPA) identification number for the YARD is MD4690307844.

2.2 SITE HISTORY AND INVESTIGATIONS

2.2.1 Site History

The YARD was originally established in 1899 as a Coast Guard training academy and boat repair facility. Industrial development of the property began around 1906 and continued for the next 30 years, with the construction of over 40 buildings by the late 1930s. Although manufacturing operations were reduced at the YARD throughout the 1980s and 1990s, ship repair and maintenance activities have continued to the present. On September 5, 2002, the YARD was added to the National Priorities List (NPL) under CERCLA. A total of nine Sites have been identified at the YARD for investigation and remediation (if necessary) under the CERCLA program. All of the CERCLA Sites are located on the western side of Arundel Cove. A map showing the nine CERCLA Sites, including Site 1, is presented as Figure 2-2. Features of Site 1 are shown in Figure 2-3.

Boat repairs were originally performed in Arundel Cove and, until 1941, only one 400-foot pier extended from the southern shoreline of the facility into Curtis Creek. A majority of the shipyard was constructed immediately prior to World War II. The 400-foot pier was removed and the original shoreline was extended as much as 300 feet into Curtis Creek. A bulkhead consisting of sheet piling was installed at the edge of the creek, and a series of pilings and decking were constructed behind the bulkhead to support buildings and roads. A 3,000-ton floating drydock, a 320-foot pier with a tower crane, and two shipways were constructed along the bulkhead. By 1942, two additional 400-foot piers with tower cranes and a second drydock were added to the facility. The waterfront configuration seen today is essentially the same as in the mid-1940s, with the exception of a new 3,500-ton shiplift completed in the late 1990s.

During the active history of the facility, periodic maintenance dredging of Curtis Creek has occurred. According to facility personnel, portions of Site 1 have been dredged approximately every 20 years to maintain the necessary depth for shipyard operations (Galliford, 2002). Permits are required from the U.S. Army Corps of Engineers for large dredging projects to accommodate facility upgrades such as new construction or new structures (e.g., drydocks) at the shipyard. Dredged sediments have been transported to Hart-Miller Island for disposal. In the last 10 years, the area beneath the newly installed shiplift has been dredged twice – once to install the shiplift and 3 years later to maintain the sediment depth. In addition, Drydock #1 (adjacent to Pier

2.0—DECISION SUMMARY

#3) was replaced with a larger drydock, the United States Navy Oakridge, in 2002. The area beneath the footprint of the new drydock was dredged to allow sufficient draft.

Most of the ship repair and maintenance work is accomplished in the floating drydock, the piers, and the shiplift. Historically, waste including spent abrasive blasting grit (using coal slag as the blasting medium), lead and chromium-laden paint dust, broken equipment, scrap metal, and other debris generated during ship refurbishing activities was discharged directly to Curtis Creek in the vicinity of the two drydocks (Galliford, 2002). In addition, small spills have occurred on the piers, along the shoreline, and directly to the surface waters of Curtis Creek from the docked ships (McMenamin, 2002). Because of a slight downward slope from the YARD toward the creek, it is anticipated that precipitation runoff enters the creek, and several stormdrains at the YARD also discharge to Curtis Creek.

2.2.2 Site Investigations

Numerous investigations have been completed at the YARD over the last 10 years. The work from previous studies and investigations related to Site 1 is outlined below.

To provide a perspective on the relative degree of Site 1 contamination, maximum surface water concentrations were compared in the Site 1 RI Work Plan (Coast Guard, 2006a) to federal Ecological and Human Health Risk Assessment criteria, specifically Ambient Water Quality Criteria (AWQCs) for Chronic Effects, USEPA Region III Biological Technical Assistance Group (BTAG) freshwater values, and USEPA Region III Risk-Based Concentrations (RBCs) for tap water.

The tap water RBCs for carcinogenic chemicals were multiplied by a factor of 10, which is an accepted practice for adjusting water supply-based criteria to surface water-based criteria. Sediment results for Site 1 were compared to BTAG sediment criteria and USEPA Region III residential soil RBCs. The residential soil RBCs for carcinogenic analytes were multiplied by a factor of 10 [i.e., Hazard Index (HI) = 10-5], which is an accepted practice for adjusting soil-based criteria to sediment-based criteria. For a noncarcinogenic analytes, the listed soil RBC was used for comparison because USEPA screening protocols require adjusting noncarcinogenic analytes downward by one-tenth to provide a Hazard Quotient (HQ) of 0.1 to account for potential additive effects of multiple noncarcinogenic contaminants. However, in media where the exposure is expected to be less (e.g., surface water and deeper sediment at Site 1), RBCs are typically adjusted upward by 10 times. Therefore, these adjustments offset each other, and the listed RBC at a HQ of 1 for the noncarcinogenic analytes was used.

Coast Guard Research and Development Center Environmental Assessment

In 1989, the Coast Guard Research and Development Center (RDC) collected five sediment samples from Arundel Cove and nine sediment samples in the drydock area of Curtis Creek. The samples were analyzed for metals and organic compounds. However, concerns about meeting quality assurance (QA) protocols make these results suspect.

For the samples collected in Arundel Cove, all analyte concentrations were less than RBCs. Concentrations of copper, lead, and zinc exceeded BTAG sediment criteria. In the drydock area, concentrations of lead and manganese exceeded RBCs. Cadmium, chromium, copper, lead, nickel, silver and zinc exceeded BTAG sediment criteria. Organic compounds detected in the Arundel Cove and drydock sediments samples were predominantly polynuclear aromatic hydrocarbons (PAHs) and phthalate esters.

SAIC Preliminary Assessment

A Preliminary Assessment (PA) was completed by Science Applications International Corporation (SAIC) in 1993 to identify locations of potential contamination facility wide (SAIC, 1993). Site 1 was included as one of the areas of potential contamination.

Site Inspection

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A CERCLA Site Inspection (SI) was completed for the YARD in 2000 (Coast Guard, 2000). A total of 3 surface water samples and 12 sediment samples were collected during the 2000 SI. All of the collected samples were submitted for USEPA Target Compound List (TCL) volatile organic compounds (VOCs) and semivolatile organic compounds (SVOCs), pesticides/PCBs, and Target Analyte List (TAL) inorganics analyses.

Analytes detected during the SI included metals, PCBs, and PAHs. The comparison of surface water results to AWQCs indicated that metals, specifically copper and zinc, may be of concern. Barium, beryllium, calcium, copper, magnesium, manganese, potassium, sodium, and zinc concentrations exceeded the BTAG freshwater criteria. For sediment, the concentrations of arsenic, iron, manganese, and vanadium exceeded residential RBCs. Site 1 concentrations of eight metals including arsenic, chromium, copper, lead, mercury, nickel, silver, and zinc exceeded BTAG sediment screening values. The BTAG sediment guidelines for two detected PAH compounds and the PCB congener Aroclor-1260 were also exceeded. The same eight metals exceeded the RBC and BTAG criteria for sediment samples in Arundel Cove. Additionally, cadmium exceeded the BTAG criterion in one of the Arundel Cove sediment samples.

Focused Risk Assessment for Shiplift Dredging Operations

Because of the dredging required in the vicinity of the shiplift, a Human Health Risk Assessment (HHRA) was completed to determine if there would be unacceptable risks to dredge workers (Coast Guard, 2003b). Surface water and sediment data obtained during the 2000 SI were used in the risk calculations. The results of the HHRA indicated that there were no carcinogenic COPCs in the collected surface water samples. The carcinogenic and noncarcinogenic risks for the dredge crew’s exposure to both surface water and sediment were less than the USEPA’s acceptable levels. The HHRA concluded that no adverse health effects were anticipated for the dredge crew.

Drydock Sediment Sampling

Within Site 1, there is an existing drydock and one shiplift used to maintain and repair Coast Guard vessels. A second drydock was removed in July 2006. Drydock #1 was located west of the shiplift and adjacent to Pier #3. Plans to replace this drydock with the larger USN Oakridge Drydock had been underway at least a year before the YARD was placed on the NPL. Dredging needed to be performed in the area beneath Drydock #1 to allow sufficient draft for the USN Oakridge. In September 2002, just after the YARD was officially designed a CERCLA Site, the Coast Guard requested and was granted permission from USEPA to treat the dredging as a routine operation rather than as a removal action. Mechanical dredging was performed using a crane with a clamshell mounted to the barge. Approximately 2 feet of sediment was removed from the footprint of the former drydock; however, as much as 12 feet of sediment were removed in the area out in the creek, south of the former drydock. Dredged sediments were placed inside a separate, walled, un-motorized barge and transported to Hart-Miller Island for disposal.

As part of the project, the YARD voluntarily sampled the proposed dredge area both before the operation began and after final dredging depths were obtained to evaluate the nature and extent (both horizontally and vertically) of sediment contamination beneath the drydock. The pre- and post-dredging samples were located as close as possible to one another, given the limitations of sampling from the dredge contractor’s barge.

All of the pre-dredging sediment samples were similar in character. The samples were all described as a black organic material with varying silt content. One sample exhibited a petroleum odor similar to a heavy oil or lubricant, and petroleum sheen was noted on the surface of the sediment sample.

The post-dredging sediment samples differed significantly in lithology from the pre-dredging samples. In the samples closest to the bulkhead and to within 200 feet of the bulkhead, the sediment consisted of a light brown, stiff to plastic, fine-grained sandy clay with variable amounts of interfingered orange-brown, fine to medium-grained sand. The sand occurred in thin lenses from 2 millimeters to centimeters thick. Samples collected from the southern half of the dredged area were described as consisting primarily of gray to yellow-brown, fine-, medium-, or coarse-grained sand.

The post-dredging sediments did not appear to have been transported by recent fluvial processes. Rather,

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they were typical of the unconsolidated sediments of the Cretaceous-age Potomac Group. From shallowest to deepest and stratigraphically youngest to oldest, the Potomac is divided into the Patapsco Formation, the Arundel Clay, and the Patuxent Formation. Sediments removed following dredging appeared to be most similar in description to the Patapsco Formation, which consists of interbedded sand, clay, and sandy clay ranging in color from red to brown to light gray.

The pre- and post-dredging sediment samples were analyzed for TCL VOCs, SVOCs and pesticide/PCBs, and TAL inorganics. Several metals were detected in the pre-dredging samples at concentrations that exceeded USEPA Region III BTAG criteria for sediment. These metals were arsenic, cadmium, chromium, copper, lead, mercury, nickel, silver, and zinc. Of these, the metals that exceeded the criteria by more than an order of magnitude (more than a factor of 10) included copper, lead, nickel, and zinc. Antimony, arsenic, chromium, copper, iron, lead, manganese, and vanadium exceed soil RBCs. The samples located near the end of the Drydock No. 1 exhibited the lowest contaminant concentrations, and concentrations generally increased toward the bulkhead.

Of the VOCs detected, low concentrations of benzene, toluene, ethylbenzene and total xylenes were identified only in one sample. PAHs were detected in all of the pre-dredging sediment samples. The lowest total PAH concentrations were found in samples located in the southernmost portion of the dredge area, farthest from the bulkhead and outside the former footprint of Drydock #1. With the exception of one sample, PAH concentrations were generally greater close to the bulkhead, with total PAH concentrations ranging from 6,830 micrograms per kilogram (μg/kg) to 35,000 μg/kg.

The pesticides 4,4’-dichlorodiphenyldichloroethylene (4,4’-DDE) and 4,4’-dichlorodiphenyltrichloroethane (4,4’-DDT) were detected at concentrations slightly greater than the BTAG sediment criteria. One PCB congener, Aroclor-1260, was detected in five samples at concentrations ranging from 150 μg/kg to 290 μg/kg. The BTAG sediment criterion for this compound is 22.7 μg/kg.

Several post-dredging sediment samples contained trace amounts of the black organic material identified in the shallow dredged material. Samples lacking organic material contained less contamination than highly organic sediments. For the heavy metals, significant overall reductions of copper, lead, nickel and zinc concentrations with respect to the pre-dredging results were evident. Copper concentrations in one sample marginally exceeded the BTAG criterion, and concentrations of the other heavy metals decreased to less than the screening criteria.

No VOCs were identified in the post-dredging sediment samples, while significantly lower concentrations of total PAHs were detected in the post-dredging samples as compared to the pre-dredging samples. Some of the contamination identified in the post-dredging samples may be attributed to cross-contamination from the movement of the shallower black organic sediments into the dredged area. Those samples that did not contain any visual evidence of black organic material contained no PAH compounds. The maximum PAH concentration in all post-dredging samples was 4,403 μg/kg.

Remedial Investigation

The Site 1 RI program included site reconnaissance and records reviews, collecting and chemically analyzing numerous environmental samples, and generating field coordinates for locations of samples using Global Positioning System technology. The RI sampling and chemical analysis programs consisted of collecting and chemically analyzing 61 sediment samples and 11 surface water samples from Site 1. Generally, Site 1 sediment and surface water samples were analyzed for volatile organic compounds, semivolatile organic compounds, pesticides, PCBs, metals and cyanide.

A human health and ecological risk assessment was performed to assess the need for additional sampling, potential remedial actions, or no action. The investigation included the identification of specific chemical constituents and their concentrations in the surface water and sediment at Site 1. No unacceptable human health risks were identified in Site 1 surface water and sediment.

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Potential risks to benthic receptors were identified in the Ecological Risk Assessment for Site 1 based on sediment concentrations of polynuclear aromatic hydrocarbons, PCBs, and one pesticide that exceed ecological screening values and background concentrations. Based on the relatively small area of impacted sediment, there are considered to be no unacceptable risks to ecological receptors at Site 1. Therefore, no action was recommended for sediment and surface water at Site 1 (TtNUS, 2007).

2.3 COMMUNITY PARTICIPATION

In accordance with Sections 113 and 117 of CERCLA, 42 U.S.C. Sections 9613 and 9617, the Coast Guard, in conjunction with EPA, issued a Proposed Plan on June 20, 2007, that presented the decision that no action was needed for Site 1. The RI and Proposed Plan for Site 1 became available for review by the public at that time. The documents are among those that comprise the Administrative Record file for the YARD, which is maintained at the YARD, Baltimore, Maryland. In addition, the RI and Proposed Plan for Site 1 and other documents relevant to the decision for Site 1 were made available to the public in an information repository for the YARD that is maintained at the Anne Arundel County Public Library, North County Area Branch. The notice of the availability of these documents, the public comment period, and a public meeting were published in the Baltimore Sun (Arundel Edition), Maryland Gazette, and Annapolis Capital on June 20, 2007. The public comment period was held from June 20, 2007 to July 20, 2007, and a public meeting was held June 28, 2007. Additional community involvement is detailed in Section 3.0.

2.4 SCOPE AND ROLE OF RESPONSE ACTION

Site 1, the subject of this ROD, consists of surface water and sediment. The findings of past investigations and risk assessment results indicate that Site 1 does not pose an unacceptable risk to human and ecological receptors. This ROD for Site 1 is the first prepared for Sites at the YARD.

2.5 SITE CHARACTERISTICS

2.5.1 Physical Setting

The YARD covers approximately 113 acres and is a densely developed area of shipbuilding facilities, administrative shops, equipment staging areas, piers, and parking lots. Land use surrounding the YARD is primarily heavy industrial and commercial, and several large manufacturing operations are located nearby. Curtis Creek borders the YARD to the south and west. Contaminants found in sediments at Site 1 could have been deposited from former (pre-1980) on-site industrial activities or could be due to migration of contaminated sediments from off-site sources. Results of the 2002 drydock pre- and post-dredging sampling indicated contaminants were present in the shallow silty black material, but not to a significant extent in the formation material. Discrete (bulkhead) and composite sediment samples were collected during the RI from the upper 6 inches of sediments (i.e., shallow, silty material). Core sediment samples were collected during the RI at shallow depths (i.e., from shallow silty sediment) and from the top horizon of the formation material. Chemical data from the shallow sediments are considered representative of previously deposited contaminants and/or contaminants from ongoing deposition. Chemical data from the undisturbed formation material were obtained to delineate the vertical extent of contamination. Both the discrete and composite sediment sampling programs included locations to the northwest and east of Site 1 to assess potential off-site contributions to contaminant concentrations in sediments. Most of the Curtis Creek shoreline at the YARD consists of bulkheads. Sediments accumulate in the shoreline areas adjacent to the bulkheads and require periodic dredging. Sediment lithology data for Site 1 were gathered as part of the 2002 pre- and post-dredging sampling of drydock sediment and during this RI. Based on these data, it appears that the thickness of non-formation (i.e., recent depositional) sediments in and adjacent to Site 1 generally ranged from 6 inches to 2 feet. The non-formation sediment was characterized as a black, silty material mixed with leaves and roots and with a swampy odor. This overlying sediment is rich in organic matter resulting from the decay of leaves, sticks and other biota deposited on the creek bottom, and is typical of sediment found in

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Curtis Creek and other tributaries of the Bay. The underlying undisturbed sediments were generally described as gray, silty clay or layered gray clays and sands. Petroleum-like odors or sheens were not observed in any of the Site 1 RI sediment samples. Curtis Creek flows northward approximately 2 miles from the YARD into Curtis Bay, which is a tidal inlet of the Patapsco River. Water depth in the Site 1 study area is influenced by tides. The depth of water measured at RI surface water sample locations ranged from 11 to 30.5 feet. Surface water samples were collected at time periods spanning the low and high tide events. Surface water at sample locations generally appeared clear, with Secchi disk visibility to approximately 1 foot below the water surface. Surface water turbidity measurements ranged from 5.9 to 17 nephelometric turbidity units (NTU) at approximately 12 inches below the water surface. The pH of surface water samples collected was slightly alkaline and generally ranged from 9.02 to 9.22. The pH results are consistent with measurements reported for previous surface water samples collected in Curtis Creek and Arundel Cove. Measurements of pH reported in the SI and Background Sampling reports ranged form 8.32 to 12.46 (mean of 9.66) for nine samples collected throughout Curtis Creek in 1999 and 2003. Additionally, field measured surface water pH obtained as part of other investigations at the YARD ranged from 8.34 to 10.26 (mean of 9.46) for eight samples collected from Curtis Creek in late 2003.

2.5.2 Conceptual Site Model

The conceptual site model (CSM) illustrates contaminant sources, release mechanisms, exposure pathways, migration routes, and potential receptors, and provides a basis for the risk assessments summarized later in this ROD and, as a result, the basis for necessary response actions. A CSM for Site 1 is presented as Figure 2-4.

Based on current and potential future land use, the following potential receptors may be exposed to contaminated environmental media at Site 1:

• Construction/Dredge Workers – A plausible on-site receptor under current or future land use. Although no major construction activities are currently planned, future construction at Site 1 is plausible.

• Facility Maintenance Worker – An on-site receptor under current/future land use. This includes adult military or civilian personnel assigned to perform primarily outdoor maintenance activities at Site 1.

• Typical Industrial Worker/Facility Personnel – An on-site receptor under current/future land use. This includes personnel assigned to work at Site 1. Overall, there is very little opportunity for exposures to surface water by industrial workers since they perform the majority of their work within the drydocks or on the piers.

• Trespassers – A plausible receptor under current and future land use. Although the facility is fenced and access to the YARD by land is controlled by gates, access along Curtis Creek is relatively unrestricted. Site 1 is located in Curtis Creek where access is not limited by any physical constraints.

• Recreational Users – The on-site recreational user is a plausible receptor under future land use only. Recreational activities do not currently occur and there are no formal recreational facilities at Site 1. Off-site recreational users are receptors under both current and future land use scenarios. Off-site recreational users may be exposed to potentially contaminated surface water (incidental ingestion, dermal contact) while swimming. However, there is currently a low likelihood that a person would swim in the immediate vicinity of Site 1 since swimming and fishing (from a boat) are prohibited within the footprint of the piers.

• Future On-site Residents – A future residential scenario, assuming Site 1 ultimately is used for residential development, is typically evaluated in a risk assessment for decision-making purposes. For example, conservatively evaluating future residential risk may eliminate the need for deed restrictions prior to site closure if risks to residential receptors are minimal.

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2.5.3 Nature and Extent of Contamination

Site 1 includes sediments that are inherently more available to ecological receptors than to direct contact by humans due to water depths ranging from 11 to nearly 35 feet. There were fewer COPCs identified in the HHRA than the Ecological Risk Assessment (ERA). However, COPCs from both the HHRA and ERA were used to assess the concentrations and nature and extent of constituents in Site 1 sediments. The results are discussed in this section with respect to human health and ecological criteria and background sample concentrations. However, COPCs are not eliminated based on background screening in this section, the HHRA, or ERA. Table 2-1 shows the occurrence and distribution of contaminants and the COPCs for sediment samples collected and chemically analyzed for the Site 1 RI. Three VOCs, 26 SVOCs, 9 pesticides, 2 TCL PCBs, 24 PCB congeners, 22 metals, cyanide, and tributyltin were detected in the RI sediment samples collected from Curtis Creek adjacent to Site 1. Table 2-2 summarizes the detected concentrations for Site 1 RI sediment samples. Sediment constituents retained as COPCs in the ERA consisted of 17 SVOCs, total PAHs, 2 pesticides, total DDT, total PCB Aroclors, total PCB congeners, 16 metals, cyanide, and TBT. Two VOCs, six SVOCs, two Aroclors, one inorganic, and all three detected PCBs were also retained as sediment COPCs in the ERA because screening values were not available for these constituents. Based on a COPC refinement step in the ERA, PAHs, PCBs, and 4,4’-DDT were identified as the primary ecological COPCs for Site 1 sediments.

Figure 2-5 shows the occurrence and distribution of total PAHs detected in Site 1 sediments at concentrations exceeding the ecological screening value of 1,610 μg/kg. PAH concentrations were greatest in sediment samples collected near the shoreline bulkhead. The mean background total PAH concentration was 2,573 μg/kg, and the maximum background total PAH concentration was 16,680 μg/kg. PAH concentrations in samples furthest from the shoreline were similar to or less than mean background levels; PAH concentrations greater than maximum background levels were concentrated in the first row of samples near the shoreline. Therefore, the Site 1 sediment data indicate that elevated PAH concentrations are localized and do not appear to be migrating beyond Site 1.

Sediment concentrations of 4,4’-DDT and its metabolites 4,4’-DDD and 4,4’-DDE follow a pattern similar to PAHs, with the greatest concentrations in samples collected near the shoreline and in the channels between the piers and drydocks. As shown in Figure 2-6, concentrations of total DDT in all Site 1 sediment samples exceeded the ecological screening level of 3.89 μg/kg. 4,4’-DDT, 4,4’-DDD and 4,4’-DDE were not detected in sediment samples collected as part of the Background Study. 4,4’-DDT and other pesticide impacts would not be expected to result from drydock activities, but likely originated from historical pesticide use and related storm water runoff from within the YARD.

Aroclors-1254 and -1260 were the only TCL PCBs detected in the sediment samples. As shown in Figure 2-7, sediment concentrations of total PCBs (as Aroclors) throughout Site 1 exceeded the ecological screening value. However, the concentrations were generally within the range of detected background Aroclor concentrations (26-710 µg/kg). The greatest Site 1 total Aroclor concentrations were detected in samples collected in the channels between the piers and drydocks.

Figures 2-8 through 2-13 show the distributions of six of the metals (cadmium, chromium. copper, lead, mercury and zinc) in sediment that exceeded the ecological risk screening criteria. These metals were selected because they represent inorganics with the highest ecological screening hazard quotients (lead, copper, zinc, and mercury), the highest ecological sensitivities, are detected frequently in sediment, or are common metals associated with industrial processes. Similar to the organic compounds, the greatest concentrations of these metals are detected in samples collected near the shoreline bulkheads between the piers and drydock. All concentrations of cadmium, chromium, and mercury are less than background concentrations reported for sediment. Concentrations of the other metals typically decrease to below background concentrations or risk screening criteria away from the bulkheads and indicate impacts from YARD activities are limited to small areas within Site 1.

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In the HHRA, manganese was the only constituent detected in sediments at concentrations exceeding both the direct contact risk-based COPC screening levels and background levels. Concentrations of manganese that exceeded the HHRA sediment screening levels are shown in Figure 2-14. Chromium, lead, benzo(a)pyrene, arsenic, iron, and vanadium were also retained as sediment COPCs because their detected concentrations exceeded screening levels but were within background levels.

Concentrations of chromium at one location and lead at four locations exceeded HHRA sediment screening levels (Figures 2-15 and 2-16). Concentrations of benzo(a)pyrene, arsenic, and vanadium (Figures 2-17 through 2-19) exceeded the HHRA sediment screening levels at 54 or more Site 1 sediment sample locations, but were within background levels. In general, the greatest concentrations of Site 1 human health COPCs were detected in sediment samples collected near the shoreline bulkheads and in the channels between the piers and drydocks.

Sample results for six deeper (core) sediment samples indicated that, in general, concentrations of analytes decreased from the shallow sediment sample to the deeper (formation material) sample. Concentrations of most analytes decreased up to an order of magnitude (a factor of 10) in the underlying formation material samples as compared to the analytical results for the shallow sample

At one core sediment sample location, most of the detected metals did not show a significant decrease with depth. However, concentrations of other detected analytes (i.e., pesticides, PCBs, SVOCs) decreased with depth at this location. These results may indicate that metals were more persistent, or more strongly sorbed to silty sediments, than other contaminants at this location.

Similar to the sediment results, the COPC list from the ERA was used to assess the concentrations and nature and extent of constituents in Site 1 surface water. Table 2-3 shows the occurrence and distribution of analytes for surface water samples collected and chemically analyzed for the Site 1 investigation. Table 2-4 summarizes the detected concentrations for the surface water samples

One VOC, 2 SVOCs, 2 pesticides, 13 metals, and cyanide were detected in RI surface water samples collected from Curtis Creek adjacent to Site 1. For the HHRA, arsenic was the only surface water COPC retained because it was the only chemical detected at a concentration exceeding the HHRA screening criteria. Figure 2-20 shows locations where arsenic exceeded its HHRA screening value.

Based on the ERA, six inorganics (barium, copper, magnesium, mercury, potassium, sodium), one pesticide (4,4’-DDT), and cyanide were retained as surface water COPCs because maximum filtered water concentrations exceeding screening levels. Caprolactam (an SVOC) was also retained as a surface water COPC in the ERA because a screening value was not available. Mercury, cyanide, 4,4’-DDT, and caprolactam were each detected only 1 of 11 surface water sample locations. Figure 2-21 shows the locations where mercury, cyanide, and 4,4’-DDT were detected above risk screening levels in the Site 1 surface water samples.

2.6 CURRENT AND POTENTIAL FUTURE LAND AND RESOURCE USES

The YARD is an active Coast Guard facility and will remain active for the foreseeable future. Receptors other than workers are unlikely to be allowed in close vicinity of Site 1. However, for purposes of completeness, the HHRA prepared for the Site 1 considered receptor exposure under residential, industrial, and recreational land use scenarios.

2.7 SUMMARY OF SITE RISKS

This section of the ROD summarizes the results of these baseline risk assessments. The human health risk assessments contain evaluations of all COPCs and exposure pathways, including those that do not pose unacceptable risks to human health. COPCs are those chemicals that are identified as a potential threat to human health after an initial screening and are evaluated in the baseline risk assessment. Surface water and sediment contaminant concentrations were compared to risk-based screening levels based on direct contact

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with the contaminated media. Chemicals of Concern (COCs) are a subset of the COPCs. COCs are identified as those site related chemicals needing to be addressed by a response action because they exceed risk-based remediation goals.

2.7.1 Baseline Human Health Risk Assessment Process

2.7.1.1 Chemicals of Potential Concern (COPCs)

The selection of COPCs is a qualitative screening process that identifies those site-related chemicals in the risk assessment that may add to overall potential risks. The COPC selection process was conservative to ensure selection of the constituents comprising the great majority of the potential risk associated with Site 1. The maximum detected concentration of each constituent in each medium was compared to a screening value to select the COPCs for the media. If the maximum concentration of a constituent exceeded the screening value, the constituent was selected as a COPC and retained for the risk evaluation. The COPC screening levels are based on EPA Region III RBCs (USEPA, October 2006) for residential land use considering both cancer and non-cancer risks. The EPA Region III RBCs were developed using protective default exposure scenarios suggested by EPA (USEPA, March 1991) and the most current available reference doses (RfDs) and cancer slope factors (CSFs) (USEPA, December 2004). Chemicals eliminated from evaluation at this step are assumed to present minimal risks to potential human receptors.

2.7.1.2 Exposure Assessment

The exposure assessment defines and evaluates the type and magnitude of human exposure to the chemicals present at or migrating from a site. The exposure assessment is designed to depict the physical setting of the site, identify potentially exposed populations, and estimate chemical intakes under the identified exposure scenarios. Actual or potential exposures are based on the most likely pathways of contaminant release and transport, as well as human activity patterns. A complete exposure pathway has three components: a source of chemicals that can be released into the environment, a route of contaminant transport through an environmental medium, and an exposure or contact point for a human receptor.

A human health exposure assessment defines and evaluates, quantitatively or qualitatively, the type or magnitude of human exposure to COPCs identified in environmental media at a site under investigation. The potential human receptors evaluated for exposure to surface water and sediment at Site 1 are identified in Section 2.5.2. Reasonable Maximum Exposure (RME) and Central Tendency Exposure (CTE) risks were evaluated for each receptor. The RME scenario represents the highest level of human exposure that could reasonably be expected to occur, and the CTE scenario portrays the average human exposure.

Pathway-specific information for these receptors, such as the values of exposure parameters used to quantify exposure, is presented in the Site 1 RI.

The exposure point concentration (EPC), which is calculated for COPCs only, is a reasonable maximum estimate of the chemical concentration that is likely to be contacted over time, and is used to calculate estimated exposure intakes. The 95 percent upper confidence limit (UCL), which is based on the distribution of a data set, is considered to be the best estimate of the exposure concentration for data sets with 10 or more samples.

2.7.1.3 Toxicity Assessment

This section provides the methodologies for the characterization of the potential human health risks associated with the potential exposure to media at Site 1. The toxicity assessment identifies the potential adverse health effects in exposed populations. Toxicity values approved by EPA are used to characterize the potential risk.

The toxicity value used to evaluate carcinogenic effects is the CSF. The CSF is an upper-bound estimate of the probability that a person will develop cancer over a lifetime based on a given dose. It is based on dose-response data from human and/or animal studies. At this time, slope factors are not available for the dermal

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route of exposure. Thus, the dermal slope factors used in the assessment have been extrapolated from oral values. An adjustment factor is sometimes applied, and is dependent upon how well the chemical is absorbed via the oral route.

The toxicity value used to evaluate noncarcinogenic effects is the RfD. The RfD is an estimate of the daily exposure level for the human population that is likely to be without appreciable risk during an established period of time, ranging from several weeks to a lifetime, depending on the exposure scenario being evaluated. It is based on a review of available animal and/or human toxicity data, with adjustments for various uncertainties associated with the data. As with CSFs, RfDs are not available for the dermal route of exposure. As was the case with the carcinogenic compounds, dermal RfDs can be extrapolated from the oral reference doses by applying an appropriate adjustment factor. Adjustments are particularly important for chemicals with less than 50 percent absorption via the ingestion route.

2.7.1.4 Risk Characterization

Quantitative estimates of risk are calculated using exposure and toxicity values according to risk assessment methods outlined in current EPA guidance (USEPA, December 1989). ILCRs are expressed in the form of unitless probabilities, which are derived using published CSFs. Noncarcinogenic risk estimates are presented in the form of HQs that are derived using published RfDs.

ILCR estimates are generated for each COPC using estimated exposure intakes and published CSFs:

ILCR = (CDI) / (CSF) where:

ILCR = a unitless probability (e.g., 2.0 X 10-5) of an individual’s developing cancer CDI = chronic daily intake averaged over 70 years (mg/kg-day) CSF = cancer slope factor, expressed as (mg/kg-day)-1.

An excess ILCR of 1.0 X 10-6 indicates that an individual experiencing the RME estimate has a 1 in 1,000,000 chance of developing cancer as a result of site-related exposure. This is referred to as an “excess ILCR” because it would be in addition to the risks of cancer individuals face from other causes such as smoking or overexposure to the sun. The chance of an individual’s developing cancer from all other causes has been estimated to be as high as one in three.

In order to interpret the quantitative risks and to aid risk managers in determining the need for remediation at a site, quantitative risk estimates are compared to typical benchmarks. EPA has defined the range 1.0 X 10-6 to 1.0 X 10-4 as the ILCR "target range" for most hazardous waste facilities addressed under CERCLA. Cumulative ILCRs greater than 1.0 X 10-4 generally indicate that some degree of remediation is required, and ILCRs below 1.0 X 10-6 normally will not result in remedial efforts. Whenever ILCRs fall between 1.0 X 10-4 and 1.0 X 10-6, decisions for remediation are made on a case-specific basis. Individual chemicals contributing significantly to risks above the target range are considered to be COCs.

Noncarcinogenic risks are assessed using the concept of HQs and HIs. The HQ for a COPC is the ratio of the estimated intake to the RfD:

HQ = (Estimated Exposure Intake) / (RfD)

Summing the individual HQs for all the COPCs generates an HI. It should be noted that an HI is not a mathematical prediction of the severity of toxic effects and therefore is not a true "risk"; it is simply a numerical indicator of the possibility of the occurrence of noncarcinogenic (threshold) effects.

An HI exceeding unity (one) indicates that there may be potential noncarcinogenic health risks associated with exposure. If an HI exceeds unity (one), target organ effects from individual COPCs contributing to the risk are considered. Only those chemicals that affect the same target organ(s) or exhibit similar critical effect(s) are

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regarded as being truly additive. Thus, COPCs contributing to an HI greater than 1.0 on the basis of a single target organ/effect are considered to be COCs.

2.7.1.5 Uncertainty Analysis

The risk measures used in site risk assessments are not precise, probability-based estimates of risk but are conditional estimates which assume a set of exposures and toxicities. Thus, it is important to specify fully the assumptions and uncertainties inherent in the risk assessment to place the risk assessment in proper perspective. This process is referred to as an uncertainty analysis. The uncertainties associated with the risk evaluations for media at Site 1 are discussed in the following sections.

2.7.2 Baseline Human Health Risk Assessment

A BHHRA was conducted Site 1 using data collected during various site investigations. Current/future construction workers, dredge workers, facility maintenance workers, industrial workers, adolescent trespassers, future child and adult recreational users, and hypothetical child and adult residents were evaluated as potential receptors for exposure to surface water and sediment in Site 1 specific baseline HHRA.

Human health COPCs for direct contact exposures at Site 1 include the following:

• Surface water - arsenic.

• Sediment - benzo(a)pyrene, arsenic, chromium, iron, lead, manganese, and vanadium.

• Fish tissue - benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(g,h,i)perylene, benzo(b)fluoranthene, chrysene, dibenzo(a,h)anthracene, fluoranthene, indeno(1,2,3-cd)pyrene, phenanthrene, pyrene, 4,4’-DDD, 4,4’-DDE, 4,4’-DDT, alpha-chlordane, Aroclor-1254, Aroclor-1260, Total PCB congeners, Total Dioxin-Like PCBs, dieldrin, endrin, and gamma-chlordane, arsenic, cadmium, chromium, copper, mercury, nickel, selenium, silver, and zinc (fish tissue concentrations were estimated on the basis of sediment concentrations).

Concentrations of benzo(a)anthracene, benzo(a)pyrene, indeno(1,2,3-cd)pyrene, arsenic, cadmium, chromium, iron, lead, mercury, nickel, silver, and vanadium in sediment were within background levels. Concentrations of manganese were within background levels in surface water.

Table 2-5 summarizes the estimated risks for the various exposure scenarios evaluated under the HHRA. HIs calculated for exposures to surface water and sediment for all receptors were less than or equal to unity under the RME scenario, indicating that adverse non-carcinogenic effects are not anticipated for receptors under the defined exposure conditions. HIs for all receptors evaluated for the ingestion of fish exceeded the target levels. Aroclor-1254, arsenic, cadmium, chromium, copper, mercury, nickel, and zinc were the major contributors the elevated HIs for ingestion of fish.

ILCRs for all receptors exposed to surface water under the RME scenario were less than USEPA’s target risk range of 10-4 to 10-6. ILCRs for all receptors evaluated for the ingestion of fish exceeded the target levels. PAHs, PCBs, dieldrin, and arsenic were the major contributors to the elevated ILCRs for the ingestion of fish.

Concentrations of chemicals in fish tissue were estimated from sediment concentrations. However, if fish tissue concentrations were estimated on the basis of surface water concentrations, potential risks from ingestion of fish would be within the acceptable risk benchmarks for all receptors. Consequently, there is uncertainty associated with the evaluation of fish ingestion exposure pathway.

Exposures to lead in sediment at Site 1 were evaluated using USEPA’s adult lead model for construction and industrial workers. Results of the adult lead model analysis indicate that blood-lead levels for children (fetuses of exposed woman) were within the goal of no more than 5 percent of children exceeding a 10 micrograms per liter blood-lead.

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Therefore, given the conservative assumptions used in the human health risk assessment relative to fish consumption and the uncertainties related to the modeling of contaminant concentrations in fish tissue, there are considered to be no unacceptable risks to human health receptors from Site 1.

2.7.3 Ecological Risk Assessment

The ERA for Site 1 consisted of Steps 1 and 2 and the initial portion of Step 3 of the eight-step ERA process described by USEPA (1997). These three steps are as follows:

• Step 1 Screening-Level Problem Formulation and Ecological Effects Evaluation

• Step 2 Screening-Level Exposure Estimate and Risk Calculation

• Step 3A Refinement of Preliminary COPCs

Ecological COPCs generally fall into two classes: (1) chemicals for which the exposure route of concern is direct contact and (2) chemicals for which the exposure route of concern is the food chain. Fish, benthic invertebrates, and other aquatic organisms in Curtis Creek could be exposed to site-related chemicals through direct contact with surface water and sediments. Toxicity through ingestion (i.e., food-chain effects) applies to wildlife such as birds and mammals, usually in response to chemicals that are more highly concentrated in food items than in water or sediment. At Site 1, wildlife such as piscivorous birds could feed on aquatic biota that have accumulated contaminants from surface water and sediment. Piscivorous birds at Site 1 could also drink contaminated water and could incidentally ingest contaminated surface water and sediment while foraging. Thus, the ecological endpoints evaluated in this ERA were aquatic receptors, benthic receptors (i.e., sediment-dwelling invertebrates), and birds that consume fish and aquatic/benthic invertebrates (i.e., piscivorous receptors).

Direct toxicity to aquatic and benthic receptors was evaluated by comparing maximum detected surface water and sediment concentrations to USEPA Region III BTAG Ecological Screening Values. Potential risks to piscivorous birds via the food chain were evaluated by comparing estimated doses to NOAELs in Step 2 and to LOAELs in Step 3A.

Several chemicals detected in surface water and/or sediment during the RI were retained as ecological COPCs because their chemical concentrations exceeded the screening values, screening values were not available, or the chemicals were bioaccumulative. These chemicals were then re-evaluated in Step 3A of the ERA (Refinement of Preliminary COPCs) to determine which chemicals have the greatest potential for causing risks to ecological receptors. The objective of the Step 3A refinement was to better define those chemicals that contribute to potentially unacceptable levels of ecological risk, and to identify and eliminate from consideration those COPCs that were retained because of the use of very conservative exposure scenarios.

Concentrations of barium, copper, magnesium, mercury, potassium, sodium, cyanide, and 4,4’-DDT exceeded their Ecological Screening Values in one or more surface water samples (Table 2-6). Concentrations of magnesium, potassium, and sodium were slightly elevated relative to screening values, but these essential nutrients would not be expected to be a result of drydock activities. Surface water concentrations of barium and copper at Site 1 were similar to background concentrations, indicating that any potential risk is not site related. Due to laboratory error, mercury was not analyzed in unfiltered surface water; however, because mercury was detected in only 1 of 11 filtered samples, it can be concluded that mercury is probably not readily bioavailable to aquatic receptors at Site 1. Cyanide and 4,4’-DDT were each detected in only 1 of 11 surface water samples. The detected concentration of 4,4’-DDT was 840 times greater than the freshwater screening value. 4,4’-DDT detection limits in background samples and in non-detect Site 1 surface water samples were approximately 200 times greater than the screening value, resulting in uncertainty regarding risk in Site 1 samples as well as in background samples. However, 4,4’-DDT would not be expected to be associated with drydock-related activities. A USEPA Region III screening value was not available for caprolactam, which was detected in 1 of 11 surface water samples, but toxicity data from other sources suggest that risk to aquatic receptors from caprolactam is negligible. The single detected concentration of caprolactam was less than

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concentrations detected in background surface water samples.

Concentrations of several chemicals in sediment exceeded ecological screening values, indicating potential risk to benthic receptors. Table 2-7 summarizes the frequencies of detection, ranges of concentrations, background concentrations, ecological screening values, and other statistics for total PAHs, total DDT, and total Aroclors, which were the three ecological COPCs of most concern based on the ERA. The screening value for total PAHs is a consensus-based threshold effect concentration (TEC) from MacDonald et. al., (2000a). The MacDonald study also developed consensus-based probable effect concentrations (PECs). The TEC is a concentration below which toxic effects to sediment biota are not expected to occur, while the PEC is a concentration above which toxic effects are expected to frequently occur. The screening value for total DDT is a threshold effects level (TEL) from MacDonald et al (1996). TELs and probable effects levels (PELs) derived by MacDonald et al (1996) are analogous to TECs and PECs in that the TEL is a concentration below which toxic effects to sediment biota are not expected to occur, while the PEL is a concentration above which toxic effects are expected to frequently occur. The screening value for total Aroclors is a consensus-based TEC from MacDonald et al (2000b). The consensus-based extreme effects concentration (EEC) developed by MacDonald et al (2000b) is the total Aroclor concentration above which adverse effects usually or always occur.

Sediment concentrations of PAHs were greatest in samples near the shoreline bulkhead, where concentrations in some samples exceeded PECs. PAH concentrations in sediment samples furthest from the bulkhead were similar to those in background samples, indicating that sediment contamination from the YARD does not extend beyond Site 1. Figure 2-22 shows the range of detected total PAH concentrations versus ecological screening values and background concentrations.

Sediment concentrations of 4,4’-DDT and its metabolites 4,4’-DDD and 4,4’-DDE followed a pattern similar to PAHs, with maximum concentrations in samples along the bulkhead. Total DDT concentrations tended to decrease with increasing distance from the bulkhead, and concentrations in the two SA rows furthest from the bulkhead tended to be within limits of the background sediment samples. Drydock-related activities would not be expected to be sources of these pesticides. Instead, elevated sediment concentrations of 4,4’-DDT and other pesticides are presumably due to storm water flow into Curtis Creek from areas contaminated by historical pest control activities at inland locations within the YARD. Sediment contamination by pesticides from the YARD does not appear to extend beyond Site 1. Figure 2-23 shows the range of detected total DDT concentrations versus ecological screening values and PELs.

Sediment concentrations of PCBs tended to be greatest near the bulkhead, but the trend of decreasing concentrations with increasing distance from the bulkhead was not as strong as for DDT and PAHs. Figure 2-24 shows the range of detected total Aroclor concentrations versus ecological screening values and background concentrations.

Sediment concentrations of inorganics also tended to be greatest near the bulkhead, and concentrations in most samples beyond the bulkhead were similar to background concentrations. The assessment of inorganics was aided by the analysis of AVS/SEM. The AVS and SEM data indicate that cadmium, copper, lead, nickel, silver, and zinc in sediment are not expected to be bioavailable and are not adversely impacting benthic invertebrates at Site 1.

Based on the results of food chain modeling using average sediment and surface water concentrations, potential risks to piscivorous birds that forage in Curtis Creek at Site 1 appear to be minor. Piscivorous birds that forage to a significant extent near the shoreline bulkhead would be at risk from total DDT, but this area is not believed to represent a significant foraging area by piscivorous birds. Potential food chain risks beyond Site 1 are minor for all bioaccumulative COPCs.

In risk management, “the results of the risk assessment are integrated with other considerations to make and justify risk management decisions” (USEPA, 1997a). The extensive background data set generated for the YARD should be utilized in risk management decisions regarding elevated concentrations of ecological COPCs. Consideration of background concentrations is an appropriate risk management issue because it is difficult to justify costs and habitat destruction for remediation to levels that are within or less than the range of

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background concentrations. Background concentrations were discussed in Step 3A of the ERA, but background concentrations were not used to screen out COPCs. Other factors for risk managers to consider include the spatial extent of potential risk, comparisons of surface water and sediment concentrations to alternate toxicity guidelines, and the current and future expected use of Site 1.

Although potential risks to aquatic receptors from surface water COPCs cannot be ruled out, potential risks appear to be minor and/or not related to drydock activities. Similarly, potential food-chain risks to piscivorous birds that forage in Curtis Creek at Site 1 are minor at worst, and potential food-chain risks to piscivorous birds that forage in Curtis Creek beyond Site 1 are negligible.

PAHs, PCBs, and 4,4’-DDT were detected in sediment at concentrations that exceed ecological screening values and background concentrations. Impacts of sediment contamination with respect to probable effects to benthic organisms (i.e., exceedances of PECs) are limited largely to the northernmost rows of samples near the bulkhead in the areas between the drydock piers and east of the shiplift. Because of the relatively small size of this area and its existence within an industrial shipyard, overall risks to benthic receptors in this area are minor. Therefore, there is no unacceptable risk at Site 1 and investigation and/or remedial action based on ecological risk is not warranted.

2.7.4 Conclusions of Risk Assessments

The Site 1 RI sampling program was adequate to evaluate potential ecological and human health risks. The sampling program provided extensive spatial coverage through the use of discrete, composite, and deep core sampling in the vicinity of the drydocks and beyond YARD activities. The chemical analyte list encompassed known and potential chemicals that could be associated with YARD activities.

The Site 1 sampling data indicate YARD activities may have impacted sediments to a limited extent; however there were no identified impacts to surface water. An assessment of both direct (e.g., skin contact) and indirect (e.g., fish tissue ingestion) sediment exposure pathways, indicate no unacceptable human health risks are associated with Site 1 sediment.

Potential risks to benthic receptors were identified in the ERA for Site 1 based on sediment concentrations of PAHs, PCBs, and DDT that exceed ecological screening values and background concentrations. Impacts of sediment contamination with respect to probable effects to benthic organisms (i.e., exceedances of PECs/PELs) are limited largely to the northernmost rows of samples near the bulkhead in the areas between the drydock piers and east of the shiplift. Based on this relatively small area of impacted sediment, there are considered to be no unacceptable risks to ecological receptors at Site 1.

2.8 NO ACTION DETERMINATION

The results of the investigations indicate that, based on available information, surface water and sediment associated with Site 1 do not present unacceptable risk to human health and the environment. In this case, the Coast Guard and EPA determine that no action is appropriate for Site 1. There are no costs associated with this remedy.

2.9 DOCUMENTATION OF SIGNIFICANT CHANGES

The Proposed Plan for Site 1 at the YARD, Baltimore, Maryland was released for public comment on June 20, 2007. The Proposed Plan identified that no action was required for Site 1. The Coast Guard reviewed all comments received during the public comment period. It was determined that no significant changes to the no action determination, as originally identified in the Proposed Plan, were necessary or appropriate.

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3.0 RESPONSIVENESS SUMMARY

3.1 OVERVIEW

This Responsiveness Summary provides a summary of comments received during the public comment period for Site 1, along with responses to those comments. The public comment period for the proposed remedy for Site 1 began on June 20, 2007 and ended on July 20, 2007. A public meeting was held on June 28, 2007 at the YARD to describe the no action determination and to solicit and accept either written comments or verbal comments. This Responsiveness Summary was prepared in accordance with guidance in “Community Relations in Superfund: A Handbook” [Office of Solid Waste and Emergency Response (OSWER) Directive 9320.3B, January 1992].

3.2 BACKGROUND ON COMMUNITY INVOLVEMENT

The Coast Guard has had a comprehensive community relations program for the YARD. Recent community relations activities have been conducted in accordance with the YARD Community Relations Plan, originally developed in 2003. These activities have included regular technical and Community Advisory Group (CAG) meetings with local officials and the establishment of the information repository at the local library for the dissemination of information to the community.

The Coast Guard organized a CAG in 2003 to review and discuss the YARD environmental issues with local community officials and concerned citizens. The CAG consists of representatives of the Coast Guard, EPA, MDE, and members of the community. The CAG has met frequently since its inception and now meets semi-annually. The results of ongoing investigations are discussed at the CAG meetings including the Remedial Investigation related to Site 1.

Reports presenting the findings of the investigations are maintained at the local information repository. The repository is located at the Anne Arundel County Public Library, North County Area Branch, 1010 Eastway, Glen Burnie, Maryland 21060. The Administrative Record for the YARD is located at 2401 Hawkins Point Road, Baltimore, Maryland, 21226.

Community relations activities for the final selected remedy include the items below:

•

•

•

•

•

•

The documents concerning the investigation and analysis of Site 1 were presented at the CAG meetings.

The documents concerning the investigation and analysis of Site 1, as well as copies of the Proposed Plan, were placed in the information repository.

The Coast Guard mailed copies of the Site 1 Proposed Plan to members of the CAG.

Newspaper announcements on the availability of documents and the public meeting and comment period were published in the Baltimore Sun, Maryland Gazette, and Annapolis Capital on June 20, 2007.

The Coast Guard established a 30-day public comment period for this Proposed Plan starting June 20, 2007 and ending July 20, 2007.

A public meeting was held on June 28, 2007 to present the Proposed Plan and to answer questions concerning Site 1.

3.3 SUMMARY OF COMMENTS RECEIVED DURING THE PUBLIC COMMENT PERIOD AND COAST GUARD RESPONSES

Questions were received during the public meeting of June 28, 2007, and one formal comment was received during the public comment period. A summary of the questions and responses are provided below. A copy of the transcript of the question and answer session of the public meeting is provided in Appendix B along with a

3.0—RESPONSIVENESS SUMMARY

copy of the one formal comment.

The Coast Guard and the EPA continue to believe that no action is needed at Site 1.

Summary of Questions and Comments from the June 28, 2007 Public Information Session

Q1: You state that the areas of impacted sediment indicative of potential frequent toxic effects on benthic organisms above background are small discontinuous areas. How small? Are we talking an acre? Are we talking 10 square feet?

A1: The ecological risk from sediment is largely limited to the sediment near the bulkhead, comprising an area of approximately 2 acres. Based on the relatively small size of the area, no unacceptable ecological risk is associated with Site 1 and investigation and/or remedial action based on ecological risk is not warranted.

Q2: You state that a lot of these threshold effect concentrations are less than or equal to background. As Curtis Creek was used as the background, does this mean that Curtis Creek is in big trouble? And why not compare it to a healthy stream? I guess my question is does it bother EPA that all of Curtis Creek is above ecological risk levels?

A2: The numbers used in the ecological risk assessment were compared to background but were also compared to EPA approved risk-based concentrations. The numbers were compared with the risk-based concentrations before comparison with background to see if there is an unacceptable risk without considering the environmental setting. The background data were used to qualify the risk calculations; however the decision to take no action at Site 1 was not based on the comparison to background. The decision was made from a comparison to the published risk standards and the peer-reviewed ecological risk-based concentrations used in the risk assessment.

Q3: Are you're saying it's okay to have some damage to some fowl or birds, because it was noted in there that there was some minor damage to these receptors?

A3: The results of the ecological risk assessment identified no ill effect to fish-eating birds and no risk was associated with water fowl or birds that might frequent Site 1.

Q4: I have a question about the bioaccumulative effects; for instance, do PCBs, dioxins and things like that have bioaccumulative effects?

A4. Yes, the constituents referenced do bioaccumulate and these effects were evaluated in the ecological risk assessment. A detailed discussion regarding bio-uptake is provided in the risk assessment.

Q5. Some of us have heard there is no safe level in certain carcinogens, and I believe dioxin was one of them. Could you name a few more that you've got there? Also, numerous compounds were detected during the investigation that might have originated from someplace else. Did you sample up Curtis Creek during the investigation, for example where Furnace goes into Curtis Creek?

A5. The EPA has published concentrations for soil and water at which no adverse human health or ecological risk would be expected for numerous compounds and chemicals (including PCBs and dioxins). These data were used in the characterization of Site 1 and the calculation of human health and ecological risks.

As part of the characterization of Site 1 and other Sites at the YARD, a background study was conducted that included a comprehensive data set. Data were collected throughout Curtis Creek as part of the investigation.

Q6. If the Coast Guard is not going to remove small pockets of DDT and PCBs when they're concentrated in a

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3.0—RESPONSIVENESS SUMMARY

concise, dredgable area, how are we ever going to lift the fish advisories in place along Curtis Creek? Or is EPA, MDE, Coast Guard, just willing to say, sorry, folks who live in the Patapsco Basin, you're just not ever going to be able to eat these fish. If that same hot spot was sitting in Patuxent River, would it be dredged? I'll just wait and see when they find in South River or Severn River similar levels what the recommendations will be.

A6. The results of the investigation indicate that the contamination, what little there is, is not generating an unacceptable risk to human health and the environment. The basis of this decision is provided in the ecological risk assessment that was evaluated by the senior ecological risk assessors for EPA. As there is no risk at Site 1, based on the nature and extent of contaminants found, no action is required.

Q7. How much higher would contaminant concentrations need to be before a recommendation for action would be needed; given that additional contaminants may enter the creek and fluctuations may be observed based on seasonal changes and runoff from parking lots? Will additional, periodic sampling be performed at Site 1 to determine if contaminant concentrations have increased? Changed?

A7. A sensitivity analysis was not performed as part of the Site 1 RI to determine what contaminant concentrations would trigger the need for action at Site 1. The contaminants found in the sediments are believed to be present as a result of past waste management practices at the YARD and future releases are not anticipated. The Coast Guard has implemented numerous best management practices to limit contaminant release to Curtis Creek. Therefore, no directed sampling will be forthcoming from EPA to monitor the sediment concentrations.

Q8. Do you have any permits for effluent discharges from the YARD? Do the permits place limits on heavy metals?

A8. National Pollutant Discharge Elimination System (NPDES) permits are in place to monitor discharges to surface water at the YARD. The YARD is not allowed to discharge effluent with heavy metals under these permits.

Q9. I just have a statement, which I know the answer to, but I just want to go on the record that I would hope that the "no cleanup" recommendation for Site 1 is not an indication that the sites to follow are not going to be cleaned up, because there are other sites that are much worse than the water and sediments at Site 1. So I hope this isn't setting a precedent.

A9. Comment noted. The recommendation for no action at Site 1 is made independent of decisions that will follow for other sites at the YARD. Decisions for other sites will be made upon the results of the site characterization efforts including the human health and ecological risk assessments that will be developed in future years.

Written Questions and Comments Received During the 30-day Public Comment Period (June 20 through July 20, 2007)

A formal comment was received during the public comment period and is provided in Appendix B. The comment endorsed the recommendations of the Proposed Plan.

3-3

LIST OF ACRONYMS AND ABBREVIATIONS

AWQC Ambient Water Quality Criteria

BTAG Biological Technical Assistance Group

CAG Community Advisory Group

CERCLA Comprehensive Environmental Response, Compensation, and Liability Act

Coast Guard United States Coast Guard

COC chemical of concern

COPC chemical of potential concern

CSF Cancer Slope Factor

CSM Conceptual Site Model

CTE Central Tendency Exposure

4,4’-DDE 4,4’-dichlorodiphenyldichloroethylene

4,4’-DDT 4,4’-dichlorodiphenyltrichloroethane

EEC extreme effects concentration

EPA United States Environmental Protection Agency

EPC exposure point concentration

ERA Ecological Risk Assessment

HHRA Human Health Risk Assessment

HI Hazard Index

HQ Hazard Quotient

ILCR incremental lifetime cancer risks

LOAELs Lowest Observed Adverse Effect Level

MDE Maryland Department of the Environment

µg/kg microgram(s) per kilogram

µg/L microgram(s) per liter

NCP National Oil and Hazardous Substances Pollution Contingency Plan

NOAELs No Observed Adverse Effects Level

NPL National Priorities List

NTU nephelometric turbidity unit

OSWER Office of Solid Waste and Emergency Response

PA Preliminary Assessment

PAH polynuclear aromatic hydrocarbons

PCB polychlorinated biphenyls

PEC probable effect concentration

PEL probable effects level

QA quality assurance

LIST OF ACRONYMS AND ABBREVIATIONS

RBC Risk-Based Concentration

RDC Coast Guard Research and Development Center

RfD reference dose

RI Remedial Investigation

RME reasonable maximum exposure

ROD Record of Decision

SAIC Science Applications International Corporation

SARA Superfund Amendments and Reauthorization Act

SI Site Inspection

SVOC semivolatile organic compound

TAL target analyte list

TCL target compound list

TEC threshold effect concentration

TEL threshold effects level

TtNUS Tetra Tech NUS, Inc.

UCL 95% Upper Confidence Limit of the Mean

VOC volatile organic compound

YARD United States Coast Guard Baltimore Yard

REFERENCES

Coast Guard (U.S. Coast Guard), 2000. Site Inspection Report, United States Coast Guard Yard, Hawkins Point Road, Baltimore, Maryland, Consultant’s report prepared by Tetra Tech NUS, Inc. Pittsburgh, Pennsylvania for the U.S. Coast Guard, Baltimore, Maryland, May.

Coast Guard (U.S. Coast Guard), 2003b. Drydock Sediment Sampling Report, United States Coast Guard Yard, Hawkins Point road, Baltimore, Maryland, Consultant’s report prepared by Tetra Tech NUS, Inc., Pittsburgh, Pennsylvania for the U.S. Coast Guard Yard, Baltimore, Maryland, January

Coast Guard (U.S. Coast Guard), 2006a. Remedial Investigation/Feasibility Study Work Plan, Site 1, Drydock Sediments, United States Coast Guard Yard, Hawkins Point Road, Baltimore, Maryland, Consultant’s report prepared by Tetra Tech NUS, Inc., Pittsburgh, Pennsylvania for the U.S. Coast Guard Yard, Baltimore, Maryland, January.

Galliford, H., United States Coast Guard Yard Environmental Engineer, to Brett Brodersen, Tetra Tech NUS, Inc. Interview, August 9, 2002.

MacDonald, D.D., R.S. Carr, F.D. Calder, E.R. Long, and C.G. Ingersoll, 1996. Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology. 5: 253-278.

MacDonald, D.D., C.G. Ingersoll, and Berger, T.A, 2000a. Development and Evaluation of Consensus-Based Sediment Quality Guidelines for Freshwater Ecosystems. Archives of Environmental Contamination and Toxicology, Vol. 39, pp. 20-31.

MacDonald, D.D., L.M. Dipinto, J. Field, C.G. Ingersoll, E.R. Long, and R.C. Swartz, 2000b. Development and evaluation of consensus-based sediment effect concentrations for polychlorinated biphenyls. Environmental Toxicology and Chemistry. 19 (5): 1403-1413.

McMenamin, D. United States Coast Guard Yard Spill Coordinator, to Brett Brodersen, Tetra Tech NUS, Inc. Teleconference, August 14, 2002.

SAIC (Science Applications International Corporation), 1993. Preliminary Assessment. United States Coast Guard Yard, Curtis Bay, Maryland, April 1993.

TtNUS, 2007. Remedial Investigation for Site 1, United States Coast Guard Yard, Hawkins Point Road, Baltimore, Maryland.

USEPA, 1989. Risk Assessment Guidance for Superfund: Volume I, Human Health Evaluation Manual (Part A). Office of Emergency and Remedial Response, Washington, D.C. EPA 540/1-89/002. December.

USEPA, 1991. Human Health Evaluation Manual, Supplemental Guidance: Standard Default Exposure Factors. Washington, D.C. OSWER Directive 9285.6-03. March.

USEPA (U.S. Environmental Protection Agency), 1997. Ecological Risk Assessment Guidance for Superfund: Process for Designing and Conducting Ecological Risk Assessments, Office of Solid Waste and Emergency Response, EPA 540-R-97-006, June.

USEPA (U.S. Environmental Protection Agency), 2006. Risk-Based Concentration Tables.

USEPA, 2004. Risk Assessment Guidance for Superfund, Volume 1: Human Health Evaluation Manual (Part E, Supplemental Guidance for Dermal Risk Assessment) Final. Office of Superfund Remediation and Technology Innovation, EPA/540/R/99/005, Washington, DC, July.

TABLE 2-1

OCCURRENCE AND DISTRIBUTION OF ORGANIC AND INORGANIC COMPOUNDS IN SEDIMENTSITE 1 - DRYDOCK SEDIMENTS

COAST GUARD YARD, BALTIMORE, MARYLAND

PAGE 1 OF 4

ACID VOLATILE SULFIDE 10/10 192 545 J SD1-16 --

COPPER 10/10 4.9 6.9 J SD1-SA15-01LEAD 10/10 0.53 2 J SD1-SA20-01 --NICKEL 10/10 0.42 0.6 J SD1-SA20-01SEM/AVS 7/7 0.0488 0.1215 SD1-SA20-01 --ZINC 10/10 9.1 21.9 J SD1-SA20-01 --ALUMINUM 61/61 1990 20200 SD1-CR-SA04(2-4) NoANTIMONY 7/61 1.8 9.7 L SD1-CR-SA04(2-4) 0.95 - 5.9 YesARSENIC 61/61 1.4 81.1 SD1-CR-SA06(2-4) YesBARIUM 60/61 7.1 299 J SD1-CR-SA05(0-2)-D 81.1 - 81.1 YesBERYLLIUM 15/61 0.79 16.4 SD1-CR-SA04(0-1.5) 0.74 - 3.7 YesCADMIUM 58/61 0.12 3.4 J SD1-18 0.17 - 23 YesCALCIUM 61/61 362 55200 J SD1-22 NoCHROMIUM 61/61 7 266 J SD1-18 YesCOBALT 61/61 4.6 55 J SD1-22 YesCOPPER 61/61 7.8 2250 J SD1-CR-SA05(0-2)-D YesIRON 61/61 3710 76100 J SD1-CR-SA05(0-2) YesLEAD 61/61 2.8 2860 J SD1-18 YesMAGNESIUM 61/61 277 8340 J SD1-16-D NoMANGANESE 61/61 17.6 9260 J SD1-22 YesMERCURY 15/61 0.61 4.5 J SD1-16 0.049 - 1.3 YesNICKEL 61/61 7.1 143 SD1-CR-SA04(0-1.5) YesPOTASSIUM 39/61 1030 3650 J SD1-15 327 - 3490 NoSELENIUM 30/61 1.8 8.2 SD1-CR-SA06(2-4) 0.92 - 5.8 YesSILVER 10/61 0.3 2.6 J SD1-22 0.21 - 1.3 YesSODIUM 61/61 442 28100 J SD1-15 NoVANADIUM 61/61 8.8 140 J SD1-SA22-01 YesZINC 61/61 15.8 5280 SD1-CR-SA04(0-1.5) Yes

CYANIDE (mg/kg) 7/18 0.079 0.27 J SD1-CR-SA18(0-0.5) 0.18 - 0.5 YesTRIBUTYLTIN (mg/kg) 2/10 14 16 J SD1-SA14-01 8.8 - 12 Yes2-METHYLNAPHTHALENE 2/61 330 2800 J SD1-16 490 - 2900 Yes

CHEMICAL

MISCELLANEOUS

SD1-16, SD1-16-D--

COPC?RANGE OF NON-

DETECTS (3)

10/10CADMIUM 0.0099

MINIMUM CONCENTRATION (2)

MAXIMUM CONCENTRATION (2)

0.017 J

FREQUENCY OF DETECTION (1)

LOCATION OF MAXIMUM

CONCENTRATION

TABLE 2-1



PAGE 2 OF 4

CHEMICAL COPC?RANGE OF NON-

DETECTS (3)MINIMUM

CONCENTRATION (2)MAXIMUM

CONCENTRATION (2)FREQUENCY OF DETECTION (1)

LOCATION OF MAXIMUM

CONCENTRATIONSD1-SA07-01 490 - 3100

SD1-19 490 - 3100ACENAPHTHYLENE 3/61 190 490 J SD1-20 490 - 3100 YesACETOPHENONE 1/61 210 210 J SD1-SA05-01 490 - 3100 YesANTHRACENE 14/61 140 2200 J SD1-20-D 490 - 3100 YesBENZALDEHYDE 21/61 150 490 J SD1-15 490 - 2700 YesBENZO(A)ANTHRACENE 55/61 100 7600 J SD1-20 490 - 2300 YesBENZO(A)PYRENE 52/61 77 5500 J SD1-20 490 - 2900 YesBENZO(B)FLUORANTHENE 57/61 110 7700 J SD1-20 490 - 830 YesBENZO(G,H,I)PERYLENE 39/61 90 2900 J SD1-20 490 - 2700 YesBENZO(K)FLUORANTHENE 27/61 120 2400 J SD1-20 490 - 2900 YesBIS(2-ETHYLHEXYL) PHTHALATE 53/61 92 1800 J SD1-14 490 - 2300 YesBUTYL BENZYL PHTHALATE 10/61 240 370 J SD1-SA17-01 490 - 3100 NoCAPROLACTAM 8/61 92 1400 J SD1-SA24-01 490 - 3100 YesCHRYSENE 56/61 120 8200 J SD1-20 490 - 2300 YesDIBENZO(A,H)ANTHRACENE 4/61 280 860 J SD1-20 490 - 3100 YesDIBENZOFURAN 1/61 190 190 J SD1-SA07-01 490 - 3100 NoDI-N-BUTYL PHTHALATE 1/61 370 370 J SD1-SA32-01-D 490 - 3100 NoDI-N-OCTYL PHTHALATE 1/61 340 340 J SD1-SA17-01 490 - 3100 YesFLUORANTHENE 57/61 120 18000 SD1-20 490 - 830 YesFLUORENE 4/61 220 430 J SD1-CR-SA06(0-2) 490 - 3100 YesINDENO(1,2,3-CD)PYRENE 40/61 120 2700 J SD1-20 490 -2400 YesISOPHORONE 1/61 340 340 J SD1-SA33-01 490 -3100 YesNAPHTHALENE 4/61 140 710 J SD1-16 490 - 2900 YesPHENANTHRENE 32/61 120 2100 J SD1-20 490 - 3100 YesPYRENE 57/61 180 10000 J SD1-20 490 - 830 YesACETONE 5/21 27 150 J SD1-16-D 13 - 93 YesCARBON DISULFIDE 1/21 5.1 5.1 J SD1-CR-SA04(0-1.5) 28 - 93 NoMETHYLENE CHLORIDE 1/21 12 12 J SD1-SA25-01 5.7 - 89 Yes4,4'-DDD 3/56 27 380 SD1-CR-SA04(2-4) 4.9 - 31 Yes

SD1-CR-SA05(0-2) 4.9 - 31SD1-CR-SA04(2-4) 4.9 - 31

4,4'-DDT 56/61 9.3 530 SD1-CR-SA04(2-4) 4.9 - 8.3 YesALPHA-CHLORDANE 18/59 2.1 12 J SD1-CR-SA05(0-2) 2.5 - 16 Yes

4,4'-DDE 14/61 7.6

Yes8/61ACENAPHTHENE 170

Yes46 J

1200 J

TABLE 2-1



PAGE 3 OF 4


DETECTS (3)MINIMUM



LOCATION OF MAXIMUM

CONCENTRATIONAROCLOR-1254 39/61 87 770 J SD1-CR-SA05(0-2)-D 49 - 310 YesAROCLOR-1260 56/61 56 840 J SD1-CR-SA05(0-2) 49 - 83 YesDIELDRIN 2/61 6.2 19 J SD1-SA18-01 4.9 - 31 YesENDOSULFAN I 1/61 3.2 3.2 J SD1-SA20-01 2.5 - 16 Yes

SD1-22 4.9 - 31SD1-CR-SA04(0-1.5) 4.9 - 31

ENDRIN 5/49 11 22 J SD1-SA18-01 4.9 - 31 YesGAMMA-CHLORDANE 33/57 1.9 15 J SD1-15 2.5 - 12 YesPCB-101 6/6 9600 20000 J SD1-16 YesPCB-105 6/6 2200 4600 J SD1-16 YesPCB-114 6/6 99 220 J SD1-16 YesPCB-118 6/6 6500 14000 J SD1-16 YesPCB-126 6/6 150 360 J SD1-20-D Yes

SD1-16SD1-20-D

PCB-138 6/6 15000 33000 J SD1-20-D YesPCB-153 6/6 17000 38000 J SD1-20-D Yes

SD1-20-DSD1-16

PCB-157 6/6 200 530 J SD1-20-D YesPCB-167 6/6 440 1000 J SD1-20-D YesPCB-170 6/6 6200 14000 J SD1-20-D YesPCB-18 6/6 670 1700 J SD1-SA15-01-D YesPCB-180 6/6 13000 29000 J SD1-20-D YesPCB-187 6/6 9600 21000 J SD1-20-D YesPCB-189 6/6 230 530 J SD1-20-D YesPCB-195 6/6 1200 2600 J SD1-20-D YesPCB-206 6/6 2900 10000 J SD1-20-D Yes

SD1-20-DSD1-16

PCB-28 6/6 2400 6100 J SD1-16 YesPCB-44 6/6 2200 5000 J SD1-16 YesPCB-52 6/6 5100 11000 J SD1-16 YesPCB-66 6/6 3200 8200 J SD1-16 Yes

PCB-209 6/6

PCB-156 6/6

ENDOSULFAN II 8/53 6.3

PCB-128 1600

Yes

Yes

6/6 J Yes

1900

2300 J1100

Yes23 J

4000 J

3600

TABLE 2-1



PAGE 4 OF 4


DETECTS (3)MINIMUM



LOCATION OF MAXIMUM

CONCENTRATIONPCB-8 6/6 600 1800 J SD1-SA15-01-D Yes

Footnotes:(1) Frequency of detection is based on average of duplicate samples and normal samples.(2) Sample and duplicate are considered as two separate samples when determining the minimum and maximum concentrations.(3) Values presented are sample-specific quantitation limits.COPC = Contaminant of Potential ConcernValidation Qualifiers J = Result is estmated. L = result is biased low.

TABLE 2-2SUMMARY OF POSITIVE DETECTIONS FOR SEDIMENT

SITE 1 - DRYDOCK SEDIMENTSUNITED STATES COAST GUARD

BALTIMORE YARD, BALTIMORE, MARYLANDPAGE 1 OF 36

SAMPLE ID: SD1-13 SD1-14 SD1-15 SD1-16 SD1-16-AVG SD1-16-D SD1-16A SD1-16A-AVG SD1-16A-D SD1-17

LABORATORY ID: C6A070164001 C6A070164002 C6A070164003 C6A070164004 C6A070164004 C6A070164013 653967 653967 653970 C6A070164005

SAMPLE DATE: 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006

LOCATION: SD1-13 SD1-14 SD1-15 SD1-16 SD1-16 SD1-16 SD1-16 SD1-16 SD1-16 SD1-17

AVS/SEM (umo/g)

ACID VOLATILE SULFIDE NA NA NA 545 J 505 J 465 J NA NA NA NA

CADMIUM NA NA NA 0.017 J 0.017 J 0.017 J NA NA NA NA

COPPER NA NA NA 6.1 J 6.05 J 6 J NA NA NA NA

LEAD NA NA NA 0.98 J 0.98 J 0.98 J NA NA NA NA

NICKEL NA NA NA 0.57 J 0.54 J 0.51 J NA NA NA NA

SEM/AVS NA NA NA NA NA NA NA NA NA NA

ZINC NA NA NA 15.2 J 14.55 J 13.9 J NA NA NA NA

INORGANICS (mg/kg)

ALUMINUM 10700 J 15200 J 14400 J 14200 J 14600 J 15000 J NA NA NA 14000 J

ANTIMONY -- -- -- -- -- -- NA NA NA --

ARSENIC 30.5 J 45.5 J 39.7 J 41.6 J 42.5 J 43.4 J NA NA NA 43.3 J

BARIUM 67.5 J 92.4 J 101 J 92.7 J 93.35 J 94 J NA NA NA 105 J

BERYLLIUM 1.8 B 2.3 B 2.2 B 2.8 B 2.55 B 2.3 B NA NA NA 2.5 B

CADMIUM 1.1 J 1.3 J 1.3 J 1.4 J 1.45 J 1.5 J NA NA NA 1.4 J

CALCIUM 7680 J 7030 J 5380 J 6370 J 6075 J 5780 J NA NA NA 4940 J

CHROMIUM 78.1 J 120 J 101 J 112 J 115 J 118 J NA NA NA 109 J

COBALT 20.7 J 23.7 J 25.1 J 23.7 J 24 J 24.3 J NA NA NA 22 J

COPPER 294 J 423 J 374 J 488 J 523.5 J 559 J NA NA NA 510 J

IRON 40800 J 59000 J 53800 J 55800 J 57800 J 59800 J NA NA NA 52800 J

LEAD 150 J 254 J 177 J 209 J 213 J 217 J NA NA NA 192 J

MAGNESIUM 7410 J 8190 J 7950 J 8030 J 8185 J 8340 J NA NA NA 7590 J

MANGANESE 703 J 1020 J 1210 J 790 J 808.5 J 827 J NA NA NA 817 J

MERCURY 1.2 J 0.9 B 0.88 B 4.5 J 2.4775 J 0.91 B NA NA NA 1.1 J

NICKEL 46.7 J 51.9 J 46.8 J 50.1 J 50 J 49.9 J NA NA NA 44.1 J

POTASSIUM 2520 B 3330 J 3650 J 3490 B 2677.5 J 3610 J NA NA NA 3430 J

SELENIUM -- -- 6.6 J -- -- -- NA NA NA 5.4 J

SILVER -- -- -- -- -- -- NA NA NA --






SAMPLE DATE: 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006


SODIUM 18000 J 23600 J 28100 J 26400 J 26550 J 26700 J NA NA NA 25300 J

VANADIUM

ZINC 891 J 898 J 759 J 1030 J 1035 J 1040 J NA NA NA 878 J

MISC (S.U.)

pH 8.1 8 7.9 8.2 8.15 8.1 NA NA NA 8.2

MISCELLANEOUS (mg/kg)

CYANIDE -- -- -- -- -- -- NA NA NA --

TOTAL ORGANIC CARBON NA NA NA 60100 J 65150 J 70200 J NA NA NA NA

TRIBUTYLTIN (ug/kg) NA NA NA NA NA NA NA NA NA NA

NOAA/WHO (ng/kg)

PCB-101 NA NA NA 20000 J 18500 J 17000 J NA NA NA NA























SAMPLE DATE: 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006








PESTICIDES/PCBs (ug/kg)

4,4'-DDD 17 R -- 27 J -- -- -- NA NA NA --

4,4'-DDE 12 J -- -- -- -- -- NA NA NA --

4,4'-DDT 43 J 32 J 32 J 30 J 27 J 24 J NA NA NA 30 J

ALPHA-CHLORDANE 9.5 R 9 J 11 J -- -- -- NA NA NA 8.1 J

AROCLOR-1254 -- -- -- -- -- -- NA NA NA --

AROCLOR-1260 420 J 370 J 420 J 330 J 300 J 270 J NA NA NA 360 J

DIELDRIN -- -- -- -- -- -- NA NA NA --

ENDOSULFAN I -- -- -- -- -- -- NA NA NA --

ENDOSULFAN II 20 J -- -- -- -- -- NA NA NA --

ENDRIN -- -- -- -- -- -- NA NA NA --

GAMMA-CHLORDANE 12 J 12 J 15 J 10 J 9.2 J 8.4 J NA NA NA 11 J

SEMIVOLATILES (ug/kg)

2-METHYLNAPHTHALENE -- -- -- 2800 J 2075 J -- NA NA NA --

ACENAPHTHENE -- -- -- -- -- -- NA NA NA --

ACENAPHTHYLENE -- -- -- -- -- -- NA NA NA --

ACETOPHENONE -- -- -- -- -- -- NA NA NA --

ANTHRACENE -- -- -- -- -- -- NA NA NA --

BENZALDEHYDE 380 J -- 490 J 380 J 380 J -- NA NA NA 320 J

BENZO(A)ANTHRACENE 710 J 380 J 340 J 570 J 565 J 560 J NA NA NA 390 J

BENZO(A)PYRENE 620 J 330 J -- 470 J 480 J 490 J NA NA NA 370 J

BENZO(B)FLUORANTHENE 980 J 580 J 460 J 700 J 785 J 870 J NA NA NA 530 J






SAMPLE DATE: 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006


BENZO(G,H,I)PERYLENE 600 J 360 J 390 J 480 J 480 J -- NA NA NA 380 J

BENZO(K)FLUORANTHENE 350 J -- -- 320 J 315 J 310 J NA NA NA --

BIS(2-ETHYLHEXYL) PHTHALATE 650 J 1800 J 730 J 540 J 635 J 730 J NA NA NA 630 J

BUTYL BENZYL PHTHALATE -- -- -- -- -- -- NA NA NA --

CAPROLACTAM -- -- -- -- -- -- NA NA NA --

CHRYSENE 900 J 640 J 500 J 820 J 835 J 850 J NA NA NA 530 J

DIBENZO(A,H)ANTHRACENE -- -- -- -- -- -- NA NA NA --

DIBENZOFURAN -- -- -- -- -- -- NA NA NA --

DI-N-BUTYL PHTHALATE -- -- -- -- -- -- NA NA NA --

DI-N-OCTYL PHTHALATE -- -- -- -- -- -- NA NA NA --

FLUORANTHENE 1900 J 1200 J 860 J 1400 J 1450 J 1500 J NA NA NA 930 J

FLUORENE -- -- -- -- -- -- NA NA NA --

INDENO(1,2,3-CD)PYRENE 480 J 320 J 320 J 400 J 415 J 430 J NA NA NA 320 J

ISOPHORONE -- -- -- -- -- -- NA NA NA --

NAPHTHALENE -- -- -- 710 J 710 J -- NA NA NA --

PHENANTHRENE 450 J 260 J -- -- 290 J 290 J NA NA NA --

PYRENE 1200 J 740 J 600 J 900 J 1000 J 1100 J NA NA NA 640 J

VOLATILE SOILS (ug/Kg)

ACETONE -- 99 J 96 J -- 98.25 J 150 J NA NA NA --

CARBON DISULFIDE -- -- -- -- -- -- NA NA NA --

METHYLENE CHLORIDE -- -- -- 10 B 46.5 B -- NA NA NA 9.4 B




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

AVS/SEM (umo/g)

ACID VOLATILE SULFIDE

CADMIUM

COPPER

LEAD

NICKEL

SEM/AVS

ZINC

INORGANICS (mg/kg)

ALUMINUM

ANTIMONY

ARSENIC

BARIUM

BERYLLIUM

CADMIUM

CALCIUM

CHROMIUM

COBALT

COPPER

IRON

LEAD

MAGNESIUM

MANGANESE

MERCURY

NICKEL

POTASSIUM

SELENIUM

SILVER

SD1-18 SD1-18A SD1-19 SD1-20 SD1-20-AVG SD1-20-D SD1-20A SD1-20A-AVG SD1-20A-D

C6A070164006 653968 C6A070164007 C6A070164008 C6A070164008 C6A070164014 653969 653969 653971

1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006

SD1-18 SD1-18 SD1-19 SD1-20 SD1-20 SD1-20 SD1-20 SD1-20 SD1-20

326 J NA NA 447 J 461 J 475 J NA NA NA

0.011 J NA NA 0.016 J 0.0135 J 0.011 J NA NA NA

4.9 J NA NA 5.4 J 5.15 J 4.9 J NA NA NA

1.6 J NA NA 0.85 J 0.69 J 0.53 J NA NA NA

0.56 J NA NA 0.47 J 0.5 J 0.53 J NA NA NA

NA NA NA NA NA NA NA NA NA

17.4 J NA NA 12.8 J 11.65 J 10.5 J NA NA NA

7480 J NA 12200 J 10700 J 10450 J 10200 J NA NA NA

4.9 J NA -- -- -- -- NA NA NA

26.2 J NA 34.9 J 35.6 J 32.4 J 29.2 J NA NA NA

68.7 J NA 98 J 157 J 113.8 J 70.6 J NA NA NA

1.6 B NA 2.8 B 2.1 B 1.85 B 1.6 B NA NA NA

3.4 J NA 1.4 J 1.4 J 1.4 J 1.4 J NA NA NA

15800 J NA 7940 J 29200 J 20350 J 11500 J NA NA NA

266 J NA 104 J 77.3 J 70.75 J 64.2 J NA NA NA

23.7 J NA 20.7 J 31.8 J 28.9 J 26 J NA NA NA

1400 J NA 741 J 595 J 552 J 509 J NA NA NA

33700 J NA 49700 J 54200 J 49050 J 43900 J NA NA NA

2860 J NA 293 J 166 J 151.5 J 137 J NA NA NA

4020 J NA 5770 J 7370 J 6735 J 6100 J NA NA NA

505 J NA 792 J 1460 J 1285 J 1110 J NA NA NA

0.61 J NA 1.7 J 0.67 B 0.585 B 0.5 B NA NA NA

38.6 J NA 54.5 J 65.5 J 58.65 J 51.8 J NA NA NA

1710 B NA 2170 B 2770 B 2605 B 2440 B NA NA NA

3 J NA -- 5 J 3.475 J -- NA NA NA

0.65 J NA 1.5 J -- -- -- NA NA NA




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

SODIUM

VANADIUM

ZINC

MISC (S.U.)

pH


CYANIDE

TOTAL ORGANIC CARBON

TRIBUTYLTIN (ug/kg)

NOAA/WHO (ng/kg)

PCB-101

PCB-105

PCB-114

PCB-118

PCB-126

PCB-128

PCB-138

PCB-153

PCB-156

PCB-157

PCB-167

PCB-170

PCB-18

PCB-180

PCB-187

PCB-189

PCB-195

PCB-206


C6A070164006 653968 C6A070164007 C6A070164008 C6A070164008 C6A070164014 653969 653969 653971

1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006


11100 J NA 4330 J 22900 J 21100 J 19300 J NA NA NA

2620 J NA 1250 J 1020 J 924 J 828 J NA NA NA

8.3 NA 8.1 7.7 7.95 8.2 NA NA NA

-- NA -- -- -- -- NA NA NA

42300 J NA NA 64800 J 61550 J 58300 J NA NA NA


16000 J NA NA 9600 J 14300 J 19000 J NA NA NA

3500 J NA NA 2200 J 3200 J 4200 J NA NA NA

160 J NA NA 99 J 149.5 J 200 J NA NA NA

11000 J NA NA 6500 J 9250 J 12000 J NA NA NA

220 J NA NA 170 J 265 J 360 J NA NA NA

2700 J NA NA 2000 J 2800 J 3600 J NA NA NA

24000 J NA NA 17000 J 25000 J 33000 J NA NA NA

28000 J NA NA 19000 J 28500 J 38000 J NA NA NA

2000 J NA NA 1200 J 1750 J 2300 J NA NA NA

360 J NA NA 270 J 400 J 530 J NA NA NA

760 J NA NA 500 J 750 J 1000 J NA NA NA

11000 J NA NA 7100 J 10550 J 14000 J NA NA NA

1100 J NA NA 670 J 835 J 1000 J NA NA NA

23000 J NA NA 14000 J 21500 J 29000 J NA NA NA

14000 J NA NA 9900 J 15450 J 21000 J NA NA NA

410 J NA NA 270 J 400 J 530 J NA NA NA

2000 J NA NA 1200 J 1900 J 2600 J NA NA NA

6100 J NA NA 2900 J 6450 J 10000 J NA NA NA




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

PCB-209

PCB-28

PCB-44

PCB-52

PCB-66

PCB-8


4,4'-DDD

4,4'-DDE

4,4'-DDT

ALPHA-CHLORDANE

AROCLOR-1254

AROCLOR-1260

DIELDRIN

ENDOSULFAN I

ENDOSULFAN II

ENDRIN

GAMMA-CHLORDANE


2-METHYLNAPHTHALENE

ACENAPHTHENE

ACENAPHTHYLENE

ACETOPHENONE

ANTHRACENE

BENZALDEHYDE

BENZO(A)ANTHRACENE

BENZO(A)PYRENE

BENZO(B)FLUORANTHENE


C6A070164006 653968 C6A070164007 C6A070164008 C6A070164008 C6A070164014 653969 653969 653971

1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006


2300 J NA NA 1900 J 2950 J 4000 J NA NA NA

3400 J NA NA 2400 J 3250 J 4100 J NA NA NA

3700 J NA NA 2200 J 3300 J 4400 J NA NA NA

8900 J NA NA 5100 J 7550 J 10000 J NA NA NA

5400 J NA NA 3200 J 4750 J 6300 J NA NA NA

980 J NA NA 600 J 750 J 900 J NA NA NA

-- NA -- -- -- -- NA NA NA

-- NA -- -- -- -- NA NA NA

18 J NA 29 J 25 J 25 J 17 R NA NA NA

3.7 J NA 6.6 J -- -- -- NA NA NA

-- NA -- -- -- -- NA NA NA

240 J NA 400 J 260 J 225 J 190 J NA NA NA

-- NA -- -- -- -- NA NA NA

-- NA -- -- -- -- NA NA NA

7.2 J NA 12 R -- -- -- NA NA NA

-- NA -- -- -- -- NA NA NA

4 R NA 7.6 J 8.7 J 7.6 J 6.5 J NA NA NA

-- NA -- -- -- -- NA NA NA

-- NA 1200 J 790 J 720 J 650 J NA NA NA

-- NA -- 490 J 440 J 390 J NA NA NA

-- NA -- -- -- -- NA NA NA

150 J NA 300 J 1700 J 1950 J 2200 J NA NA NA

-- NA -- 410 J 345 J 280 J NA NA NA

580 J NA 1300 J 7600 J 6750 J 5900 J NA NA NA

580 J NA 1400 J 5500 J 4450 J 3400 J NA NA NA

940 J NA 1100 J 7700 J 6350 J 5000 J NA NA NA




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

BENZO(G,H,I)PERYLENE

BENZO(K)FLUORANTHENE

BIS(2-ETHYLHEXYL) PHTHALATE

BUTYL BENZYL PHTHALATE

CAPROLACTAM

CHRYSENE

DIBENZO(A,H)ANTHRACENE

DIBENZOFURAN

DI-N-BUTYL PHTHALATE

DI-N-OCTYL PHTHALATE

FLUORANTHENE

FLUORENE

INDENO(1,2,3-CD)PYRENE

ISOPHORONE

NAPHTHALENE

PHENANTHRENE

PYRENE


ACETONE

CARBON DISULFIDE

METHYLENE CHLORIDE


C6A070164006 653968 C6A070164007 C6A070164008 C6A070164008 C6A070164014 653969 653969 653971

1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006 1/6/2006


440 J NA 1200 J 2900 J 2450 J 2000 J NA NA NA

290 J NA 430 J 2400 J 2200 J 2000 J NA NA NA

650 J NA 920 J 470 J 485 J 500 J NA NA NA

-- NA -- -- -- -- NA NA NA

-- NA 330 J -- -- -- NA NA NA

880 J NA 1700 J 8200 J 7300 J 6400 J NA NA NA

-- NA 290 J 860 J 705 J 550 J NA NA NA

-- NA -- -- -- -- NA NA NA

-- NA -- -- -- -- NA NA NA

-- NA -- -- -- -- NA NA NA

1700 J NA 4200 J 18000 16500 15000 NA NA NA

-- NA -- 400 J 390 J 380 J NA NA NA

420 J NA 1100 J 2700 J 2300 J 1900 J NA NA NA

-- NA -- -- -- -- NA NA NA

-- NA -- -- -- -- NA NA NA

310 J NA 1400 J 2100 J 2050 J 2000 J NA NA NA

1100 J NA 4000 J 10000 J 9350 J 8700 J NA NA NA

-- NA -- -- -- -- NA NA NA

-- NA -- -- -- -- NA NA NA

5.7 B NA 8.2 B -- 42.15 B 6.3 B NA NA NA




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

AVS/SEM (umo/g)


CADMIUM

COPPER

LEAD

NICKEL

SEM/AVS

ZINC

INORGANICS (mg/kg)

ALUMINUM

ANTIMONY

ARSENIC

BARIUM

BERYLLIUM

CADMIUM

CALCIUM

CHROMIUM

COBALT

COPPER

IRON

LEAD

MAGNESIUM

MANGANESE

MERCURY

NICKEL

POTASSIUM

SELENIUM

SILVER

SD1-21 SD1-22 SD1-23 SD1-CR-SA04 (0-1.5) SD1-CR-SA04 (2-4) SD1-CR-SA05 (0-2)SD1-CR-SA05 (0-2)-

AVG SD1-CR-SA05 (0-2)-D SD1-CR-SA05 (2-4)

C6A070164009 C6A070164010 C6A070164011 C6A050274012 C6A050274013 C6A050274006 C6A050274006 C6A050274007 C6A050274008

1/6/2006 1/6/2006 1/6/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006

SD1-21 SD1-22 SD1-23 SD1-CR-SA04 SD1-CR-SA04 SD1-CR-SA05 SD1-CR-SA05 SD1-CR-SA05 SD1-CR-SA05








9470 J 11300 J 11600 J 12800 20200 16200 J 17150 J 18100 J 11100

-- 4 J -- -- 9.7 L -- -- -- --

31 J 41.5 J 32.6 J 29.2 29 63 J 68.75 J 74.5 J 8.3

90.5 J 283 J 102 J 195 103 297 J 298 J 299 J 22.8

1.8 B 2.5 B 2.1 B 16.4 1.9 L 5.4 J 5.45 J 5.5 J 1.5 L

1.4 J 2.1 J 1.2 J 0.86 K 3 1.4 J 1.45 J 1.5 J --

4580 J 55200 J 3970 J 9650 1740 7350 J 7115 J 6880 J 1340

71.9 J 95.4 J 87 J 107 104 168 J 184 J 200 J 36.8

20.2 J 55 J 22.7 J 28.9 19.5 34.8 J 35.95 J 37.1 J 11

858 J 463 J 429 J 1260 J 47.8 J 810 J 1530 J 2250 J 32.2 J

36200 J 61300 J 41200 J 70300 38600 76100 J 75500 J 74900 J 27000

160 J 220 J 233 J 471 J 350 J 402 J 821 J 1240 J 12.2 J

5040 J 6960 J 5980 J 5340 4220 5710 J 5745 J 5780 J 2870

994 J 9260 J 1370 J 2100 296 2480 J 2415 J 2350 J 341

0.76 J 1.1 J 0.86 J 1.2 0.32 B 1.6 J 1.7 J 1.8 J 0.1 B

37.9 J 75.1 J 37.6 J 143 29.7 86.2 J 85.85 J 85.5 J 18.9

2110 J 2400 B 2560 B 1720 2510 2710 J 2840 J 2970 J 2090

3.6 J 4.3 J -- 3.5 L 1.8 L 6 J 5.45 J 4.9 J --

-- 2.6 J -- 0.98 -- -- -- -- --




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

SODIUM

VANADIUM

ZINC

MISC (S.U.)

pH


CYANIDE


TRIBUTYLTIN (ug/kg)

NOAA/WHO (ng/kg)

PCB-101

PCB-105

PCB-114

PCB-118

PCB-126

PCB-128

PCB-138

PCB-153

PCB-156

PCB-157

PCB-167

PCB-170

PCB-18

PCB-180

PCB-187

PCB-189

PCB-195

PCB-206




1/6/2006 1/6/2006 1/6/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006


14100 J 17700 J 18000 J 7000 5650 14600 J 14500 J 14400 J 5060

690 J 969 J 716 J 5280 406 2360 J 2465 J 2570 J 63.5

8.4 8.1 8 NA NA NA NA NA NA

-- -- -- -- -- -- 0.088 J 0.088 J --
























SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

PCB-209

PCB-28

PCB-44

PCB-52

PCB-66

PCB-8


4,4'-DDD

4,4'-DDE

4,4'-DDT

ALPHA-CHLORDANE

AROCLOR-1254

AROCLOR-1260

DIELDRIN

ENDOSULFAN I

ENDOSULFAN II

ENDRIN

GAMMA-CHLORDANE


2-METHYLNAPHTHALENE

ACENAPHTHENE

ACENAPHTHYLENE

ACETOPHENONE

ANTHRACENE

BENZALDEHYDE

BENZO(A)ANTHRACENE

BENZO(A)PYRENE





1/6/2006 1/6/2006 1/6/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006








-- 89 J -- 7.7 R 380 23 R -- -- --

-- 35 J -- 21 J 46 J 46 J 31 J 16 J --

16 J 38 J 18 J 44 J 530 240 J 152 J 64 J --

-- 6.7 J -- 9.3 J -- 12 J 10.9 J 9.8 J --

-- 480 J -- 600 J -- 760 J 765 J 770 J --

200 J 460 J 190 J 620 J 56 J 840 J 805 J 770 J --

-- -- -- 6.2 J -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- 23 J -- 23 J 7.7 J 29 R 26.5 R 24 R --

-- 12 R -- 11 R -- 22 R 20.5 R 19 R --

5 J 5.6 R -- -- -- 5.4 R -- -- --

-- -- -- -- -- -- -- -- --

-- 250 J -- -- 200 J -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

410 J 610 J -- 180 J 230 J 180 J 175 J 170 J --

210 J -- 250 J -- -- 250 J 230 J 210 J --

1000 J 2100 J 440 J 390 J 800 J 540 J 515 J 490 J --

720 J 1400 J 400 J 220 J 320 J 410 J 395 J 380 J --

1100 J 2600 J 550 J 330 J 400 J 660 J 635 J 610 J --




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:





CAPROLACTAM

CHRYSENE


DIBENZOFURAN



FLUORANTHENE

FLUORENE


ISOPHORONE

NAPHTHALENE

PHENANTHRENE

PYRENE


ACETONE

CARBON DISULFIDE

METHYLENE CHLORIDE




1/6/2006 1/6/2006 1/6/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006


480 J 580 J -- -- 90 J 300 J 250 J 200 J --

490 J 820 J 270 J 120 J 180 J 230 J 215 J 200 J --

330 J 930 J 380 J 1500 J 390 J 700 J 665 J 630 J --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- 190 J 190 J -- --

1600 J 2500 J 620 J 410 J 1000 J 600 J 580 J 560 J --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

2800 J 5600 J 1000 J 1700 J 970 J 1900 J 1700 J 1500 J --

-- -- -- -- -- -- -- -- --

410 J 620 J 290 J -- 120 J 300 J 295 J 290 J --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

370 J 940 J -- 420 J 430 J 330 J 335 J 340 J --

1600 J 4100 J 680 J 930 J 640 J 1200 J 1100 J 1000 J --

-- -- -- 31 B NA 65 B 39 B 13 B NA

-- -- -- 5.1 J NA -- -- -- NA

-- 6.4 B 7.3 B -- NA -- -- -- NA




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

AVS/SEM (umo/g)


CADMIUM

COPPER

LEAD

NICKEL

SEM/AVS

ZINC

INORGANICS (mg/kg)

ALUMINUM

ANTIMONY

ARSENIC

BARIUM

BERYLLIUM

CADMIUM

CALCIUM

CHROMIUM

COBALT

COPPER

IRON

LEAD

MAGNESIUM

MANGANESE

MERCURY

NICKEL

POTASSIUM

SELENIUM

SILVER

SD1-CR-SA06 (0-2) SD1-CR-SA06 (2-4) SD1-CR-SA18 (0-0.5) SD1-CR-SA18 (1-3)

SD1-CR-SA20 (0-0.5)

SD1-CR-SA20 (1-3)

SD1-CR-SA22 (0-2) SD1-CR-SA22 (2-4) SD1-SA01-01


1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/10/2006

SD1-CR-SA06 SD1-CR-SA06 SD1-CR-SA18 SD1-CR-SA18 SD1-CR-SA20 SD1-CR-SA20 SD1-CR-SA22 SD1-CR-SA22 SD1-SA01








7410 7580 13400 J 13500 12400 J 12600 10000 J 1990 10600 J

2.5 J 1.8 J -- -- -- -- -- -- --

38.7 81.1 64.8 J 13.7 34.4 J 6.7 35.5 J 1.4 29.5 J

75.1 35 77.9 J 58.7 69.9 J 23.7 71.4 J 7.1 62.3 J

1.4 L 0.89 L 3.7 J 1.7 L 2 B 1.6 L 1.5 B 0.79 L 1.6 B

0.59 K 0.93 K 0.79 J -- 0.74 J -- 0.59 J 0.12 1 J

3030 1370 4210 J 3130 3670 J 1620 2330 J 362 4470 J

93.6 89.8 135 J 40.2 97.3 J 38.1 85.3 J 7 91.5 J

10.8 9.2 21 J 13.9 16.3 J 10.6 15.9 J 4.6 13.7 J

322 J 166 J 398 J 37.8 J 321 J 25.2 J 206 J 7.8 J 256 J

68300 42000 62600 J 31300 44400 J 28000 48300 J 3710 42200 J

243 J 224 J 221 J 24.2 J 157 J 10.5 J 137 J 2.8 J 169 J

2760 1670 6030 J 3020 6260 J 3630 3650 J 277 5590 J

581 153 1200 J 400 720 J 414 652 J 17.6 593 J

1.8 1 1.7 J 0.12 B 0.99 B 0.095 B 0.88 B 0.049 B 0.99 B

26.2 16.2 48.7 J 21 33.5 J 20 30.7 J 7.1 31.8 J

1150 K 1030 2540 J 2290 2770 J 2400 1750 J 327 B 2290 B

4.6 8.2 4.8 J -- -- -- 4 J -- --

0.65 0.3 -- -- -- -- -- -- --




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

SODIUM

VANADIUM

ZINC

MISC (S.U.)

pH


CYANIDE


TRIBUTYLTIN (ug/kg)

NOAA/WHO (ng/kg)

PCB-101

PCB-105

PCB-114

PCB-118

PCB-126

PCB-128

PCB-138

PCB-153

PCB-156

PCB-157

PCB-167

PCB-170

PCB-18

PCB-180

PCB-187

PCB-189

PCB-195

PCB-206


SD1-CR-SA20 (0-0.5)

SD1-CR-SA20 (1-3)



1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/10/2006


5260 2530 16400 J 4760 19200 J 6240 8860 J 442 15000 J

649 194 965 J 56.6 559 J 50.6 304 J 15.8 548 J

NA NA NA NA NA NA NA NA 8.4

-- -- 0.27 J -- -- -- -- -- --


NA NA NA NA NA NA NA NA --






















SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

PCB-209

PCB-28

PCB-44

PCB-52

PCB-66

PCB-8


4,4'-DDD

4,4'-DDE

4,4'-DDT

ALPHA-CHLORDANE

AROCLOR-1254

AROCLOR-1260

DIELDRIN

ENDOSULFAN I

ENDOSULFAN II

ENDRIN

GAMMA-CHLORDANE


2-METHYLNAPHTHALENE

ACENAPHTHENE

ACENAPHTHYLENE

ACETOPHENONE

ANTHRACENE

BENZALDEHYDE

BENZO(A)ANTHRACENE

BENZO(A)PYRENE



SD1-CR-SA20 (0-0.5)

SD1-CR-SA20 (1-3)



1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/10/2006








5 R -- -- -- -- -- 9.9 R -- --

7.9 J -- 16 J -- -- -- 9.1 J -- --

20 J -- 60 J -- 21 J -- 24 J -- 25 J

3 R -- 8.6 J -- -- -- -- -- --

220 J -- 550 J -- -- -- 230 J -- 200 J

250 J -- 770 J -- 250 J -- 290 J -- 310 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

6.9 R -- 23 R -- -- -- 11 J -- --

-- -- 20 R -- -- -- 7 R -- --

-- -- -- -- 6.1 J -- -- -- 6.9 J

-- -- -- -- -- -- -- -- --

970 J 400 J -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

320 J 140 J -- -- -- -- 150 J -- --

-- -- 190 J -- 320 J -- 150 J -- --

650 J 200 J 210 J -- 360 J -- 690 J -- 310 J

370 J 90 J 240 J -- 360 J -- 410 J -- 330 J

470 J 110 J 350 J -- 580 J -- 670 J -- 540 J




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:





CAPROLACTAM

CHRYSENE


DIBENZOFURAN



FLUORANTHENE

FLUORENE


ISOPHORONE

NAPHTHALENE

PHENANTHRENE

PYRENE


ACETONE

CARBON DISULFIDE

METHYLENE CHLORIDE


SD1-CR-SA20 (0-0.5)

SD1-CR-SA20 (1-3)



1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/4/2006 1/10/2006


210 J -- 200 J -- 340 J -- 270 J -- --

230 J -- -- -- -- -- 210 J -- 210 J

430 J -- 540 J -- 410 J -- 300 J -- 700 J

-- -- -- -- -- -- -- -- 250 J

-- -- -- 92 J -- -- -- -- --

630 J 150 J 280 J -- 420 J -- 680 J -- 420 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

2900 J 770 J 500 J -- 950 J -- 1000 J -- 730 J

430 J 230 J -- -- -- -- -- -- --

210 J -- 190 J -- -- -- 260 J -- 280 J

-- -- -- -- -- -- -- -- --

140 J -- -- -- -- -- -- -- --

600 J 800 J -- -- 230 J -- 300 J -- 240 J

1700 J 500 J 600 J -- 800 J -- 690 J -- 750 J

20 B NA NA NA NA NA NA NA NA

-- NA NA NA NA NA NA NA NA

-- NA NA NA NA NA NA NA NA




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

AVS/SEM (umo/g)


CADMIUM

COPPER

LEAD

NICKEL

SEM/AVS

ZINC

INORGANICS (mg/kg)

ALUMINUM

ANTIMONY

ARSENIC

BARIUM

BERYLLIUM

CADMIUM

CALCIUM

CHROMIUM

COBALT

COPPER

IRON

LEAD

MAGNESIUM

MANGANESE

MERCURY

NICKEL

POTASSIUM

SELENIUM

SILVER

SD1-SA02-01 SD1-SA02-01-AVG SD1-SA02-01-D SD1-SA03-01 SD1-SA04-01 SD1-SA05-01 SD1-SA06-01 SD1-SA07-01 SD1-SA08-01


1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006

SD1-SA02 SD1-SA02 SD1-SA02 SD1-SA03 SD1-SA04 SD1-SA05 SD1-SA06 SD1-SA07 SD1-SA08

NA NA NA NA NA 323 J NA NA NA

NA NA NA NA NA 0.01 J NA NA NA




NA NA NA NA NA 0.0717 NA NA NA


14800 J 13650 J 12500 J 14100 J 16200 J 12300 J 11100 J 9780 J 7330 J

-- -- -- -- -- -- -- 3.2 J --

45.4 J 42.7 J 40 J 39.2 J 40.7 J 36.1 J 36.9 J 29.6 J 23 J

84.1 J 77.9 J 71.7 J 82.8 J 97.4 J 74.2 J 88.6 J 95.4 J 81.1 B

1.8 B 1.8 B 1.8 B 1.8 B 3.1 J 2.6 B 2.3 B 2.1 B 1.8 J

1.4 J 1.25 J 1.1 J 1.4 J 1.3 J 1.1 J 1.2 J 1.5 J 0.68 J

4390 J 4235 J 4080 J 11400 J 4960 J 5420 J 21900 J 3200 J 2420 J

129 J 117 J 105 J 103 J 114 J 105 J 88.3 J 81.1 J 55.4 J

17.1 J 16.5 J 15.9 J 18.6 J 21.5 J 18 J 19.8 J 21.7 J 18.2 J

300 J 279 J 258 J 276 J 394 J 427 J 483 J 320 J 266 J

56200 J 52450 J 48700 J 48900 J 58300 J 47100 J 47000 J 37700 J 27800 J

202 J 187.5 J 173 J 170 J 197 J 167 J 174 J 165 J 138 J

7350 J 6915 J 6480 J 6670 J 7160 J 5640 J 5640 J 4240 J 3510 J

745 J 698.5 J 652 J 1050 J 1030 J 661 J 843 J 1070 J 818 J

1.3 B 1.145 B 0.99 B 0.87 B 0.84 B 0.75 B 0.92 B 0.93 B 0.65 B

36.3 J 34.95 J 33.6 J 36.6 J 47 J 42.2 J 40.7 J 40.8 J 27.8 J

2890 J 2780 J 2670 J 2950 J 3200 J 2650 J 2470 B 1950 B 1480 B

4.4 J 4.75 J 5.1 J -- -- 5.1 J -- 3.6 J --

-- -- -- -- -- -- -- -- --




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

SODIUM

VANADIUM

ZINC

MISC (S.U.)

pH


CYANIDE


TRIBUTYLTIN (ug/kg)

NOAA/WHO (ng/kg)

PCB-101

PCB-105

PCB-114

PCB-118

PCB-126

PCB-128

PCB-138

PCB-153

PCB-156

PCB-157

PCB-167

PCB-170

PCB-18

PCB-180

PCB-187

PCB-189

PCB-195

PCB-206



1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006


20700 J 20850 J 21000 J 21800 J 22400 J 16400 J 16800 J 10900 J 9390 J

590 J 564 J 538 J 608 J 881 J 782 J 774 J 656 J 389 J

8.2 8.1 8 8 8.2 8.4 8.3 8.2 8.4

0.18 B 0.18 B -- -- -- -- 0.16 J -- 0.11 J


NA NA NA -- -- 14 J -- NA NA






















SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

PCB-209

PCB-28

PCB-44

PCB-52

PCB-66

PCB-8


4,4'-DDD

4,4'-DDE

4,4'-DDT

ALPHA-CHLORDANE

AROCLOR-1254

AROCLOR-1260

DIELDRIN

ENDOSULFAN I

ENDOSULFAN II

ENDRIN

GAMMA-CHLORDANE


2-METHYLNAPHTHALENE

ACENAPHTHENE

ACENAPHTHYLENE

ACETOPHENONE

ANTHRACENE

BENZALDEHYDE

BENZO(A)ANTHRACENE

BENZO(A)PYRENE




1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006








-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- 8.2 J --

27 J 26.5 J 26 J 21 J 23 J 28 J 22 J 19 J 16 J

5.9 J 5.9 J -- -- -- 6.3 J -- 4.5 J --

230 J 225 J 220 J 200 J 200 J -- 200 J 180 J 160 J

350 J 345 J 340 J 300 J 280 J 330 J 260 J 230 J 200 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- 12 J -- -- -- -- 7.2 R

6.8 J 6.75 J 6.7 J 8 J 7 J 7.2 R 6.1 J 4.5 J 3.6 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- 1200 J --

-- -- -- -- -- -- 220 J 190 J --

-- -- -- -- -- 210 J -- -- --

-- -- -- -- 250 J -- 600 J 540 J --

-- -- -- 260 J -- 320 J 330 J 210 J --

320 J 320 J 320 J 260 J 270 J 470 J 2500 J 2000 J 300 J

310 J 305 J 300 J 260 J 250 J 470 J 1900 J 2000 J 290 J

560 J 545 J 530 J 480 J 440 J 710 J 2600 J 3100 J 980 J




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:





CAPROLACTAM

CHRYSENE


DIBENZOFURAN



FLUORANTHENE

FLUORENE


ISOPHORONE

NAPHTHALENE

PHENANTHRENE

PYRENE


ACETONE

CARBON DISULFIDE

METHYLENE CHLORIDE



1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006


380 J 305 J 230 J 400 J 310 J 350 J 970 J 870 J 320 J

-- -- -- -- -- 270 J 1000 J 1200 J 340 J

550 J 480 J 410 J 560 J 520 J 510 J 840 J 380 J 250 J

260 J 260 J -- -- -- -- -- -- --

320 J 320 J -- -- -- -- 410 J -- 220 J

430 J 450 J 470 J 340 J 390 J 610 J 2700 J 2900 J 400 J

-- -- -- -- -- -- 300 J 280 J --

-- -- -- -- -- -- -- 190 J --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

810 J 795 J 780 J 580 J 660 J 1400 J 6400 J 7700 J 1000 J

-- -- -- -- -- -- -- 220 J --

300 J 275 J 250 J -- 260 J 320 J 1000 J 960 J 300 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- 170 J --

260 J 265 J 270 J -- -- 270 J 480 J 680 J 180 J

830 J 790 J 750 J 650 J 780 J 1000 J 3300 J 6900 J 690 J

NA NA NA NA NA -- NA NA NA

NA NA NA NA NA -- NA NA NA

NA NA NA NA NA 8.9 B NA NA NA




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

AVS/SEM (umo/g)


CADMIUM

COPPER

LEAD

NICKEL

SEM/AVS

ZINC

INORGANICS (mg/kg)

ALUMINUM

ANTIMONY

ARSENIC

BARIUM

BERYLLIUM

CADMIUM

CALCIUM

CHROMIUM

COBALT

COPPER

IRON

LEAD

MAGNESIUM

MANGANESE

MERCURY

NICKEL

POTASSIUM

SELENIUM

SILVER

SD1-SA09-01 SD1-SA10-01 SD1-SA11-01 SD1-SA12-01 SD1-SA13-01 SD1-SA14-01 SD1-SA15-01 SD1-SA15-01-AVG SD1-SA15-01-D


1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006


NA 328 J NA NA NA NA 347 J 320 J 293 J

NA 0.012 J NA NA NA NA 0.011 J 0.0104 J 0.0099 J

NA 5.2 J NA NA NA NA 6.9 J 6.55 J 6.2 J

NA 1.1 J NA NA NA NA 0.98 J 0.915 J 0.85 J

NA 0.49 J NA NA NA NA 0.46 J 0.44 J 0.42 J

NA 0.0528 NA NA NA NA 0.0546 0.0566 0.0586

NA 10.5 J NA NA NA NA 10.6 J 10.15 J 9.7 J

6700 12400 J 12300 J 13100 J 10300 J 13200 J 10800 J 12100 J 13400 J

-- -- -- -- -- -- -- -- --

21.7 52.4 J 41.8 J 37 J 23.9 J 43.8 J 34.6 J 35.7 J 36.8 J

84.8 87.8 J 68.1 J 80.5 J 75.4 J 106 J 80.4 J 90.7 J 101 J

1.8 B 1.9 B 1.7 B 1.9 B 2.7 J 3.7 B 2.1 B 2.3 B 2.5 B

0.63 1.6 J 0.95 J 1.2 J 0.97 J 1.1 J 0.81 J 0.805 J 0.8 J

3240 4170 J 3930 J 4250 J 3790 J 4830 J 3510 J 3645 J 3780 J

49.4 141 J 112 J 107 J 81.9 J 153 J 89.7 J 96.35 J 103 J

18.3 15.7 J 15 J 19.1 J 26.1 J 24 J 16.9 J 18.15 J 19.4 J

258 321 J 265 J 268 J 290 J 667 J 419 J 416.5 J 414 J

24000 63100 J 52600 J 50400 J 41300 J 65800 J 43200 J 46800 J 50400 J

306 J 210 J 173 J 170 J 155 J 264 J 190 J 186.5 J 183 J

2960 6180 J 6280 J 6660 J 4800 J 6720 J 5790 J 6105 J 6420 J

859 K 1070 J 759 J 1110 J 715 J 848 J 830 J 864 J 898 J

0.53 B 1.1 B 1 B 0.94 B 0.56 B 1.1 B 0.88 B 0.795 B 0.71 B

25.9 37 J 32.1 J 40.3 J 64.9 J 77.2 J 33.8 J 35.25 J 36.7 J

1200 B 2540 J 2610 J 2880 J 2230 J 2980 J 2470 B 2002.5 J 2770 J

-- 5.2 J 4.6 J -- -- 5 J -- 3.425 J 4.9 J

-- -- -- -- -- -- -- -- --




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

SODIUM

VANADIUM

ZINC

MISC (S.U.)

pH


CYANIDE


TRIBUTYLTIN (ug/kg)

NOAA/WHO (ng/kg)

PCB-101

PCB-105

PCB-114

PCB-118

PCB-126

PCB-128

PCB-138

PCB-153

PCB-156

PCB-157

PCB-167

PCB-170

PCB-18

PCB-180

PCB-187

PCB-189

PCB-195

PCB-206



1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006


7350 18600 J 19100 J 21900 J 16900 J 20400 J 17700 J 18200 J 18700 J

407 610 J 543 J 611 J 845 J 1580 J 592 J 611.5 J 631 J

8.3 8.4 7.8 8.3 8.2 8.4 8.4 8.4 8.4

0.092 J -- -- -- -- -- -- -- --

NA 45900 J NA NA NA NA 44600 J 47400 J 50200 J

NA NA NA -- -- 16 J -- -- --

NA NA NA NA 11000 J NA 15000 J 15500 J 16000 J

NA NA NA NA 2300 J NA 4000 J 3750 J 3500 J

NA NA NA NA 110 J NA 180 J 175 J 170 J

NA NA NA NA 7300 J NA 12000 J 11500 J 11000 J

NA NA NA NA 150 J NA 230 J 235 J 240 J

NA NA NA NA 1600 J NA 2900 J 2800 J 2700 J

NA NA NA NA 15000 J NA 21000 J 21500 J 22000 J

NA NA NA NA 17000 J NA 24000 J 25000 J 26000 J

NA NA NA NA 1100 J NA 2000 J 1900 J 1800 J

NA NA NA NA 200 J NA 390 J 365 J 340 J

NA NA NA NA 440 J NA 820 J 720 J 620 J

NA NA NA NA 6200 J NA 9100 J 9400 J 9700 J

NA NA NA NA 990 J NA 1200 J 1450 J 1700 J

NA NA NA NA 13000 J NA 19000 J 20000 J 21000 J

NA NA NA NA 9600 J NA 13000 J 13500 J 14000 J

NA NA NA NA 230 J NA 360 J 365 J 370 J

NA NA NA NA 1300 J NA 1900 J 1950 J 2000 J

NA NA NA NA 3200 J NA 6200 J 5700 J 5200 J




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

PCB-209

PCB-28

PCB-44

PCB-52

PCB-66

PCB-8


4,4'-DDD

4,4'-DDE

4,4'-DDT

ALPHA-CHLORDANE

AROCLOR-1254

AROCLOR-1260

DIELDRIN

ENDOSULFAN I

ENDOSULFAN II

ENDRIN

GAMMA-CHLORDANE


2-METHYLNAPHTHALENE

ACENAPHTHENE

ACENAPHTHYLENE

ACETOPHENONE

ANTHRACENE

BENZALDEHYDE

BENZO(A)ANTHRACENE

BENZO(A)PYRENE




1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006


NA NA NA NA 2000 J NA 3300 J 3400 J 3500 J

NA NA NA NA 3300 J NA 4200 J 4600 J 5000 J

NA NA NA NA 3100 J NA 3800 J 3750 J 3700 J

NA NA NA NA 7200 J NA 8500 J 8300 J 8100 J

NA NA NA NA 4400 J NA 6000 J 6450 J 6900 J

NA NA NA NA 1100 J NA 1600 J 1700 J 1800 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

13 J 28 J 23 J 19 J 15 J 28 J 15 J 16 J 17 J

3 J -- -- -- -- -- -- -- --

150 J 290 J 230 J 180 J 130 J -- 120 J 135 J 150 J

170 J 400 J 330 J 250 J 180 J 330 J 180 J 195 J 210 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

5.9 R 16 J 12 J -- -- -- -- -- --

3.2 J -- 6.6 J 6 J 5.2 J 5.9 R -- 5.5 J 5.5 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- 240 J 210 J 300 J 220 J 220 J --

210 J 430 J 300 J 290 J 180 J 440 J 490 J 470 J 450 J

240 J 310 J 330 J 290 J -- 400 J 430 J 415 J 400 J

400 J 490 J 550 J 510 J 360 J 590 J 710 J 640 J 570 J




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:





CAPROLACTAM

CHRYSENE


DIBENZOFURAN



FLUORANTHENE

FLUORENE


ISOPHORONE

NAPHTHALENE

PHENANTHRENE

PYRENE


ACETONE

CARBON DISULFIDE

METHYLENE CHLORIDE



1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006


190 J 260 J 380 J -- -- 380 J -- -- --

170 J -- -- -- -- 280 J 230 J 220 J 210 J

190 J 510 J 460 J 470 J 360 J 690 J 420 J 380 J 340 J

-- 330 J 310 J 260 J -- -- -- -- --

-- -- 410 J -- -- -- -- -- --

280 J 570 J 400 J 380 J 220 J 530 J 550 J 525 J 500 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

560 J 600 J 660 J 610 J 450 J 1400 J 1200 J 1150 J 1100 J

-- -- -- -- -- -- -- -- --

190 J 240 J -- -- -- 330 J 330 J 300 J 270 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

140 J -- 240 J 250 J -- 260 J 220 J 220 J --

460 J 650 J 700 J 680 J 470 J 920 J 1300 J 1200 J 1100 J

NA -- NA NA NA NA 41 J 43 J 45 J

NA -- NA NA NA NA -- -- --

NA -- NA NA NA NA -- 35.2 B 7.4 B




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

AVS/SEM (umo/g)


CADMIUM

COPPER

LEAD

NICKEL

SEM/AVS

ZINC

INORGANICS (mg/kg)

ALUMINUM

ANTIMONY

ARSENIC

BARIUM

BERYLLIUM

CADMIUM

CALCIUM

CHROMIUM

COBALT

COPPER

IRON

LEAD

MAGNESIUM

MANGANESE

MERCURY

NICKEL

POTASSIUM

SELENIUM

SILVER

SD1-SA16-01 SD1-SA17-01 SD1-SA18-01 SD1-SA19-01 SD1-SA20-01 SD1-SA21-01 SD1-SA22-01 SD1-SA23-01 SD1-SA24-01 SD1-SA25-01

C6A100122005 C6A110132014 C6A110132007 C6A110132003 C6A100122021 C6A100122014 C6A100122008 C6A100122009 C6A110132013 C6A110132008

1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/10/2006 1/10/2006

SD1-SA16 SD1-SA17 SD1-SA18 SD1-SA19 SD1-SA20 SD1-SA21 SD1-SA22 SD1-SA23 SD1-SA24 SD1-SA25

NA NA NA NA 242 J NA NA NA NA 348 J

NA NA NA NA 0.0099 J NA NA NA NA 0.012 J




NA NA NA NA 0.1215 NA NA NA NA 0.0488


9100 J 13300 J 13500 J 13200 J 9290 J 8120 J 13300 J 12100 J 14900 J 13600 J

-- -- -- -- -- -- -- -- -- --

30.7 J 40.3 J 36 J 42.9 J 20.3 J 35.4 J 48.5 J 44.9 J 42.8 J 39.6 J

84.5 J 82.2 J 73.6 J 107 J 87.3 J 63.6 J 122 J 116 J 80.6 J 72.6 J

1.9 B 1.9 B 2 B 1.9 B 10.9 J 1.6 B 2.9 B 2.3 B 1.8 B 1.8 B

0.76 J 1.4 J 1.3 J 1.5 J 0.86 J 1.5 J 1.1 J 1.2 J 1.1 J 1.2 J

2720 J 4070 J 3950 J 10300 J 9350 J 4650 J 3950 J 3210 J 4050 J 4020 J

85 J 114 J 110 J 111 J 73.6 J 77.4 J 130 J 117 J 120 J 118 J

16.8 J 17.9 J 17.6 J 21.2 J 22.5 J 14.2 J 22 J 20 J 16.6 J 17 J

296 J 279 J 310 J 340 J 618 J 306 J 411 J 355 J 291 J 299 J

40300 J 53500 J 48200 J 55400 J 42800 J 54300 J 61400 J 52800 J 54400 J 52200 J

151 J 183 J 171 J 180 J 421 J 140 J 224 J 193 J 183 J 184 J

4440 J 6600 J 6930 J 6600 J 4310 J 4200 J 5750 J 5080 J 7130 J 6830 J

730 J 1070 J 998 J 1300 J 687 J 731 J 1010 J 834 J 963 J 735 J

0.83 B 0.95 B 0.93 B 1 B 0.83 B 1.9 J 0.88 B 1.2 B 0.95 B 1.2 B

32.1 J 35.5 J 36.6 J 43.7 J 83.9 J 28.9 J 47.2 J 42.1 J 36.2 J 36.8 J

1910 B 2990 J 3050 J 2860 B 1710 J 1700 B 2630 B 2210 J 3150 J 2910 J

4 J -- -- -- -- 4.4 J 5.9 J 4.3 J 5.2 J --

-- -- -- 1.1 J 0.58 J -- -- -- -- --




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

SODIUM

VANADIUM

ZINC

MISC (S.U.)

pH


CYANIDE


TRIBUTYLTIN (ug/kg)

NOAA/WHO (ng/kg)

PCB-101

PCB-105

PCB-114

PCB-118

PCB-126

PCB-128

PCB-138

PCB-153

PCB-156

PCB-157

PCB-167

PCB-170

PCB-18

PCB-180

PCB-187

PCB-189

PCB-195

PCB-206



1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/10/2006 1/10/2006


11600 J 22400 J 23600 J 23400 J 8550 J 11000 J 13000 J 11900 J 22600 J 22000 J

486 J 630 J 611 J 715 J 5140 J 872 J 852 J 652 J 615 J 570 J

8.6 8.1 8.2 8.1 8.5 8 8.2 8.5 8.1 8.3

0.079 J -- -- -- -- -- -- -- -- --


NA -- NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NA





















SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

PCB-209

PCB-28

PCB-44

PCB-52

PCB-66

PCB-8


4,4'-DDD

4,4'-DDE

4,4'-DDT

ALPHA-CHLORDANE

AROCLOR-1254

AROCLOR-1260

DIELDRIN

ENDOSULFAN I

ENDOSULFAN II

ENDRIN

GAMMA-CHLORDANE


2-METHYLNAPHTHALENE

ACENAPHTHENE

ACENAPHTHYLENE

ACETOPHENONE

ANTHRACENE

BENZALDEHYDE

BENZO(A)ANTHRACENE

BENZO(A)PYRENE




1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/10/2006 1/10/2006








-- -- -- -- -- -- -- -- -- --

-- -- -- -- 7.6 J 9.1 J -- 8.3 J -- --

15 J 23 J 28 J 25 J 23 J 21 J 23 J 26 J 18 J 20 J

-- -- 6.6 J -- 3.8 J 4.8 J -- -- -- --

150 J 190 J -- 200 J -- 260 J 200 J 250 J 140 J 160 J

200 J 280 J 300 J 300 J 250 J 230 J 290 J 350 J 230 J 250 J

-- -- 19 J -- -- -- -- -- -- --

-- -- -- -- 3.2 J -- -- -- -- --

-- -- -- -- 6.8 R 8.7 J -- 8.3 R -- --

-- -- 22 J -- 6.8 R 7.7 R -- 12 R -- --

-- -- 12 J 8.2 J -- 4.8 J -- -- -- 6 J

-- -- -- -- -- -- -- -- -- --

-- -- -- -- -- 170 J -- -- -- --

-- -- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- -- --

190 J -- -- -- 150 J -- -- -- -- --

500 J 360 J 270 J 280 J 380 J 620 J 280 J 200 J 240 J 250 J

570 J 350 J 290 J 290 J 380 J 340 J 280 J 210 J -- 280 J

870 J 650 J 520 J 440 J 590 J 510 J 430 J 370 J 360 J 460 J




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:





CAPROLACTAM

CHRYSENE


DIBENZOFURAN



FLUORANTHENE

FLUORENE


ISOPHORONE

NAPHTHALENE

PHENANTHRENE

PYRENE


ACETONE

CARBON DISULFIDE

METHYLENE CHLORIDE



1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/10/2006 1/10/2006


420 J 260 J -- 340 J 300 J -- -- 180 J -- --

300 J -- -- -- 180 J 150 J -- -- -- --

310 J 830 J 590 J 470 J 320 J 250 J 400 J 180 J 340 J 450 J

-- 370 J 280 J -- -- -- -- -- -- 250 J

-- -- -- -- -- -- -- -- 1400 J --

690 J 440 J 430 J 340 J 590 J 530 J 360 J 260 J 260 J 330 J

-- -- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- -- --

-- 340 J -- -- -- -- -- -- -- --

1300 J 790 J 580 J 660 J 1200 J 2000 J 570 J 350 J 380 J 550 J

-- -- -- -- -- -- -- -- -- --

410 J 320 J -- 300 J 270 J 230 J -- 180 J -- --

-- -- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- -- --

280 J 300 J -- -- 140 J 200 J -- -- -- --

1600 J 880 J 650 J 660 J 780 J 1800 J 760 J 550 J 440 J 640 J

NA NA NA NA -- NA NA NA NA --

NA NA NA NA -- NA NA NA NA --

NA NA NA NA -- NA NA NA NA 12 J




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

AVS/SEM (umo/g)


CADMIUM

COPPER

LEAD

NICKEL

SEM/AVS

ZINC

INORGANICS (mg/kg)

ALUMINUM

ANTIMONY

ARSENIC

BARIUM

BERYLLIUM

CADMIUM

CALCIUM

CHROMIUM

COBALT

COPPER

IRON

LEAD

MAGNESIUM

MANGANESE

MERCURY

NICKEL

POTASSIUM

SELENIUM

SILVER



1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006


NA NA NA NA 192 J NA NA NA NA

NA NA NA NA 0.011 J NA NA NA NA




NA NA NA NA 0.0828 NA NA NA NA


14700 J 5440 J 3510 13600 J 8610 J 13700 J 14200 J 14500 J 14800 J

-- -- -- -- -- -- -- -- --

38.7 J 18.4 J 12 45.9 J 33.6 J 38.3 J 37.3 J 37.3 J 37.3 J

77.6 J 32.7 J 24.5 85.9 J 63.5 J 71.6 J 71.2 J 74.1 J 77 J

1.8 B 1.2 B 0.74 B 2.6 B 1.8 B 1.7 B 1.6 B 1.7 B 1.8 B

1.5 J 0.54 J 0.81 1.3 J 0.81 J 1 J 1.3 J 1.135 J 0.97 J

3970 J 1470 J 1080 3740 J 2330 J 4050 J 3700 J 3755 J 3810 J

120 J 46.6 J 31.3 120 J 88.2 J 110 J 116 J 116 J 116 J

17.6 J 8.5 J 5.1 18.8 J 13.8 J 15.1 J 16.6 J 16.7 J 16.8 J

332 J 123 J 92.1 343 J 257 J 321 J 280 J 292.5 J 305 J

52700 J 21300 J 15200 53300 J 38200 J 48200 J 50300 J 51350 J 52400 J

185 J 80.7 J 53.8 J 197 J 152 J 163 J 174 J 177.5 J 181 J

6990 J 2460 J 1470 6640 J 3550 J 6590 J 6620 J 6665 J 6710 J

817 J 348 J 190 K 831 J 503 J 976 J 923 J 918 J 913 J

0.79 B 0.45 B 0.28 B 0.97 B 0.97 B 0.95 B 0.98 B 0.975 B 0.97 B

38.3 J 17.8 J 10.3 40.2 J 29 J 31.9 J 34.1 J 35.5 J 36.9 J

3010 J 1280 B 693 B 2820 J 1620 B 2860 J 2860 J 2890 J 2920 J

5.6 J -- -- 6.6 J 3.6 J -- -- -- --

-- 0.6 J -- 1.2 J -- -- -- -- --




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

SODIUM

VANADIUM

ZINC

MISC (S.U.)

pH


CYANIDE


TRIBUTYLTIN (ug/kg)

NOAA/WHO (ng/kg)

PCB-101

PCB-105

PCB-114

PCB-118

PCB-126

PCB-128

PCB-138

PCB-153

PCB-156

PCB-157

PCB-167

PCB-170

PCB-18

PCB-180

PCB-187

PCB-189

PCB-195

PCB-206



1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006


21300 J 8020 J 3880 18200 J 8840 J 20400 J 19800 J 19750 J 19700 J

609 J 263 J 263 605 J 456 J 488 J 537 J 575 J 613 J

8.2 8.3 8.1 8.3 8.4 8.4 8.2 8.2 8.2

-- -- -- -- -- -- -- -- --
























SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

PCB-209

PCB-28

PCB-44

PCB-52

PCB-66

PCB-8


4,4'-DDD

4,4'-DDE

4,4'-DDT

ALPHA-CHLORDANE

AROCLOR-1254

AROCLOR-1260

DIELDRIN

ENDOSULFAN I

ENDOSULFAN II

ENDRIN

GAMMA-CHLORDANE


2-METHYLNAPHTHALENE

ACENAPHTHENE

ACENAPHTHYLENE

ACETOPHENONE

ANTHRACENE

BENZALDEHYDE

BENZO(A)ANTHRACENE

BENZO(A)PYRENE




1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006








-- -- 3.9 R -- -- -- -- -- --

-- -- -- -- 8.4 J -- -- -- --

21 J 11 J 10 J 24 J 25 J 16 J 21 J 21.5 J 22 J

-- -- 2.1 J -- -- -- -- 5.6 J 5.6 J

160 J -- 91 J 210 J 230 J 120 J 210 J 195 J 180 J

260 J 120 J 130 J 300 J 340 J 210 J 300 J 285 J 270 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- 4.1 R -- 9.6 R -- -- -- --

-- -- 4.8 R -- -- -- 11 J 11 J --

7.2 J -- 1.9 J 6.4 J -- 6.5 J 6.4 J 6.8 J 7.2 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

260 J 240 J 100 J -- 200 J 240 J 240 J 240 J 240 J

270 J 270 J 77 J 240 J 210 J 240 J 230 J 230 J 230 J

470 J 390 J 130 J 420 J 330 J 480 J 360 J 375 J 390 J




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:





CAPROLACTAM

CHRYSENE


DIBENZOFURAN



FLUORANTHENE

FLUORENE


ISOPHORONE

NAPHTHALENE

PHENANTHRENE

PYRENE


ACETONE

CARBON DISULFIDE

METHYLENE CHLORIDE



1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/10/2006 1/10/2006 1/10/2006 1/10/2006


-- 160 J -- 240 J -- -- 270 J 275 J 280 J

-- 140 J -- -- -- -- -- -- --

400 J 140 J 92 J -- 270 J 360 J 310 J 315 J 320 J

-- -- -- -- -- 260 J -- -- --

-- -- -- -- -- -- -- -- --

330 J 320 J 120 J 290 J 230 J 350 J 240 J 260 J 280 J

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- 370 J 370 J

-- -- -- -- -- -- -- -- --

530 J 1600 J 460 J 540 J 350 J 480 J 390 J 420 J 450 J

-- -- -- -- -- -- -- -- --

270 J 150 J -- -- 150 J 240 J 220 J 220 J --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- 120 J -- -- -- -- -- -- --

700 J 1400 J 560 J 430 J 550 J 510 J 510 J 530 J 550 J


NA NA NA NA -- NA NA NA NA

NA NA NA NA -- NA NA NA NA




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

AVS/SEM (umo/g)


CADMIUM

COPPER

LEAD

NICKEL

SEM/AVS

ZINC

INORGANICS (mg/kg)

ALUMINUM

ANTIMONY

ARSENIC

BARIUM

BERYLLIUM

CADMIUM

CALCIUM

CHROMIUM

COBALT

COPPER

IRON

LEAD

MAGNESIUM

MANGANESE

MERCURY

NICKEL

POTASSIUM

SELENIUM

SILVER

SD1-SA33-01 SD1-SA34-01 SD1-SA35-01 SD1-SA36-01 SD1-SA36-01-AVG SD1-SA36-01-D SD1-SA37-01 SD1-SA38-01

C6A110132004 C6A110132001 C6A100122018 C6A100122016 C6A100122016 C6A100122017 C6A100122013 C6A100122011

1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006

SD1-SA33 SD1-SA34 SD1-SA35 SD1-SA36 SD1-SA36 SD1-SA36 SD1-SA37 SD1-SA38

NA NA 267 J NA NA NA NA NA

NA NA 0.012 J NA NA NA NA NA




NA NA 0.071 NA NA NA NA NA


14200 J 15100 J 11400 J 6050 J 6570 J 7090 J 12200 J 10400 J

-- -- -- 2.2 J 2.2 J -- -- --

45 J 40.4 J 35.2 J 34.1 J 33.6 J 33.1 J 38.3 J 32.9 J

97.5 J 78.1 J 63.5 J 34.1 J 36.2 J 38.3 J 75.5 J 62.6 J

2.9 J 2 B 2.2 B 1.2 B 1.25 B 1.3 B 2.3 B 1.9 B

1.5 J 1.2 J 0.69 J -- 0.3825 J 0.65 J 0.97 J 0.49 J

3760 J 4080 J 3230 J 2400 J 2395 J 2390 J 3200 J 2770 J

117 J 125 J 102 J 80.5 J 83.25 J 86 J 109 J 87.7 J

19.6 J 18.9 J 15 J 7.7 J 8.85 J 10 J 16.1 J 13.5 J

334 J 325 J 280 J 210 J 213.5 J 217 J 277 J 235 J

54800 J 54600 J 48400 J 59400 J 55050 J 50700 J 49900 J 40400 J

183 J 199 J 160 J 118 J 131 J 144 J 176 J 145 J

5900 J 7060 J 5440 J 2890 J 2985 J 3080 J 5180 J 4840 J

842 J 869 J 723 J 482 J 472 J 462 J 678 J 655 J

0.87 B 0.85 B 0.83 B 0.95 J 0.63 J 0.62 B 1.3 B 0.73 B

43.2 J 37.3 J 32 J 19 J 20.85 J 22.7 J 33.5 J 26.9 J

2670 J 2920 J 2380 B 1190 B 1275 B 1360 B 2570 B 2050 J

-- 4.6 J -- 2.9 J 3.15 J 3.4 J -- --

-- -- -- -- -- -- -- --




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

SODIUM

VANADIUM

ZINC

MISC (S.U.)

pH


CYANIDE


TRIBUTYLTIN (ug/kg)

NOAA/WHO (ng/kg)

PCB-101

PCB-105

PCB-114

PCB-118

PCB-126

PCB-128

PCB-138

PCB-153

PCB-156

PCB-157

PCB-167

PCB-170

PCB-18

PCB-180

PCB-187

PCB-189

PCB-195

PCB-206



1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006


16900 J 20700 J 14800 J 8000 J 8085 J 8170 J 10800 J 13000 J

984 J 615 J 487 J 382 J 392.5 J 403 J 549 J 406 J

8.4 8.2 8.1 7.7 7.65 7.6 8.5 8.2

-- -- -- 0.13 J 0.13 J -- -- --


NA NA NA NA NA NA NA NA






















SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:

PCB-209

PCB-28

PCB-44

PCB-52

PCB-66

PCB-8


4,4'-DDD

4,4'-DDE

4,4'-DDT

ALPHA-CHLORDANE

AROCLOR-1254

AROCLOR-1260

DIELDRIN

ENDOSULFAN I

ENDOSULFAN II

ENDRIN

GAMMA-CHLORDANE


2-METHYLNAPHTHALENE

ACENAPHTHENE

ACENAPHTHYLENE

ACETOPHENONE

ANTHRACENE

BENZALDEHYDE

BENZO(A)ANTHRACENE

BENZO(A)PYRENE




1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006








-- -- -- -- -- -- -- --

-- -- -- 7.9 J 7.9 J -- -- --

26 J 15 J 18 J 15 J 12.15 J 9.3 J 23 J 18 J

-- -- -- -- -- -- -- --

290 J 140 J 160 J 150 J 118.5 J 87 J 190 J 140 J

360 J 210 J 220 J 190 J 155 J 120 J 290 J 220 J

-- -- -- -- -- -- -- --

-- -- -- -- -- -- -- --

-- -- -- 6.3 J 6.3 J -- -- --

10 R -- -- -- -- -- -- --

-- 5.5 J -- -- -- -- 6 J 4.9 J

330 J -- -- -- -- -- -- --

-- -- -- -- -- -- -- --

-- -- -- -- -- -- -- --

-- -- -- -- -- -- -- --

-- -- -- -- -- -- -- --

-- -- -- -- -- -- -- --

280 J 230 J 240 J 160 J 160 J -- -- 170 J

350 J -- 230 J 180 J 180 J -- -- 210 J

690 J 390 J 390 J 240 J 200 J 160 J 500 J 330 J




SAMPLE ID:

LABORATORY ID:

SAMPLE DATE:

LOCATION:





CAPROLACTAM

CHRYSENE


DIBENZOFURAN



FLUORANTHENE

FLUORENE


ISOPHORONE

NAPHTHALENE

PHENANTHRENE

PYRENE


ACETONE

CARBON DISULFIDE

METHYLENE CHLORIDE



1/10/2006 1/10/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006 1/9/2006


270 J -- 220 J -- -- -- 240 J 170 J

230 J -- -- 120 J 120 J -- -- --

490 J 280 J 270 J 270 J 270 J -- -- --

240 J -- -- -- -- -- -- --

-- -- -- -- -- -- -- --

370 J 300 J 340 J 180 J 160 J 140 J -- 240 J

-- -- -- -- -- -- -- --

-- -- -- -- -- -- -- --

-- -- -- -- -- -- -- --

-- -- -- -- -- -- -- --

720 J 530 J 730 J 120 J 160 J 200 J 380 J 280 J

-- -- -- -- -- -- -- --

-- -- 210 J -- -- -- -- 160 J

340 J -- -- -- -- -- -- --

390 J -- -- -- -- -- -- --

320 J -- -- -- -- -- -- --

830 J 620 J 910 J 320 J 355 J 390 J 400 J 180 J

NA NA -- NA NA NA NA NA



TABLE 2-3

OCCURRENCE AND DISTRIBUTION OF ORGANIC AND INORGANIC COMPOUNDS IN SURFACE WATER SAMPLESSITE 1 - DRYDOCK SEDIMENTS

UNITED STATES COAST GUARD YARD, BALTIMORE, MARYLANDPAGE 1 OF 2

MINIMUM MAXIMUMINORGANICS (UG/L)ARSENIC 3/11 2.4 K 2.8 K SW1-SA30-01 2.2 - 2.2. YesBARIUM 11/11 35.1 37 SW1-SA15-01 YesCALCIUM 11/11 95200 108000 SW1-SA10-01 NoCHROMIUM 1/11 1 K 1 K SW1-SA20 0.95 - 0.95 Yes

SW1-SA15-01SW1-SA15-01-DSW1-SA30-01

SW1-20SW1-15

COPPER 11/11 1.8 L 3.4 L SW1-17 YesMAGNESIUM 11/11 257000 299000 SW1-SA10-01 YesMANGANESE 11/11 71 82 SW1-SA15-01-D NoNICKEL 8/11 2 2.8 SW1-20 2.0 - 2.0 YesPOTASSIUM 11/11 112000 J 131000 J SW1-SA10-01 YesSODIUM 11/11 1980000 2350000 SW1-SA10-01 YesVANADIUM 11/11 5 K 6.4 K SW1-SA20 NoZINC 4/11 22.8 K 37.4 K SW1-SA15-01-D 16.9 - 22.2 Yes

ARSENIC 3/11 2.3 K 2.8 K SW1-SA05 2.2 - 2.2 YesBARIUM 11/11 34.4 36.3 SW1-SA15-01-D YesCALCIUM 11/11 94000 106000 SW1-SA10-01 No

SW1-SA15-01SW1-SA15-01-DSW1-SA30-01

SW1-SA20COPPER 11/11 0.98 L 1.6 L SW1-15 YesMAGNESIUM 11/11 254000 294000 SW1-SA10-01 YesMANGANESE 11/11 65.6 70.5 SW1-SA20-D NoMERCURY 1/11 0.039 0.039 SW1-SA20-D 0.039 - 0.039 YesNICKEL 8/11 2 2.6 SW1-SA25 2.0 - 2.0 Yes

DETECTS(3)

COBALT 10/11 0.68 1.1

FREQUENCY OF DETECTION (1)CHEMICAL

0.68 - 0.68

LOCATION OF MAXIMUM

CONCENTRATIONCOPC?

No

RANGE OF NONDETECTS

INORGANICS FILTERED (UG/L)

COBALT 7/11 0.73 1.2 0.68 - 0.68 No

TABLE 2-3

OCCURRENCE AND DISTRIBUTION OF ORGANIC AND INORGANIC COMPOUNDS IN SURFACE WATER SAMPLESSITE 1 - DRYDOCK SEDIMENTS

UNITED STATES COAST GUARD YARD, BALTIMORE, MARYLANDPAGE 2 OF 2

MINIMUM MAXIMUM

DETECTS(3)FREQUENCY OF DETECTION (1)CHEMICAL

LOCATION OF MAXIMUM

CONCENTRATIONCOPC?RANGE OF

NONDETECTS

POTASSIUM 11/11 110000 J 130000 J SW1-SA10-01 YesSODIUM 11/11 1920000 2230000 SW1-SA10-01 YesVANADIUM 11/11 3.6 K 7.5 K SW1-17 No

CYANIDE 1/11 6 6 SW1-SA20 10 - 10 Yes

BIS(2-ETHYLHEXYL)PHTHALATE 1/11 10 10 SW1-15 9.4 - 10.0 NoCAPROLACTAM 1/11 1.5 J 1.5 J SW1-SA35 9.4 - 10.0 Yes

ACETONE 5/5 3.3 J 4.1 J SW1-SA20-D 10.0 - 10.0 No

4,4'-DDE 1/11 0.095 0.095 SW1-SA10-01 0.094 - 0.095 Yes4,4'-DDT 1/11 0.42 0.42 SW1-SA10-01 0.094 - 0.095 Yes

(1) Frequency of detection is based on average of samples results.(2) The laboratory missed the holding times for the unfiltered (i.e., total) mercury samples, Therefore, the analyses were not performed.(3) Sample and duplicate are considered two separate when determining the mimumum and maximum concentrations.(4) Values presented are sample-specific quantitation limits.Validation QualifiersK = Result is biased high.L = result is biased low.J = result is estimated.COPC = Contaminant of Potential Concern

MISCELLANEOUS (UG/L)

VOLATILES (ug/L)

PESTICIDES/PCBs (ug/L)

SEMIVOLATILES (ug/L)

TABLE 2-4

SUMMARY OF POSITIVE DETECTIONS FOR SURFACE WATER SAMPLESSITE 1 - DRYDOCK SEDIMENTS

UNITED STATES COAST GUARD BALTIMORE YARD, BALTIMORE, MARYLANDPAGE 1 OF 4

SAMPLE ID: SW1-15 SW1-17 SW1-20 SW1-23 SW1-SA05 SW1-SA10-01 SW1-SA15-01 SW1-SA15-01-AVGLABORATORY ID: C6A060148010DL C6A060148012 C6A060148004 C6A060148005 C6A060148011 C6A060148013 C6A060148002 C6A060148002

SAMPLE DATE: 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006LOCATION: SW1-15 SW1-17 SW1-20 SW1-23 SW1-SA05-01 SW1-SA10-01 SW1-SA15-01 SW1-SA15-01

SEMIVOLATILES (ug/L)BIS(2-ETHYLHEXYL)PHTHALATE 10 -- -- -- -- -- -- --

CAPROLACTAM -- -- -- -- -- -- -- -- INORGANICS (ug/L)ALUMINUM 34.1 B 36 B 48.3 B 48.8 B 38.4 B 35 B 41.1 B 44.65 B

ARSENIC -- -- -- -- 2.6 K -- -- --

BARIUM 35.8 35.9 36.7 36.8 36.6 36.3 37 36.6

CALCIUM 99800 101000 96100 95200 98900 108000 96000 98000

CHROMIUM -- -- -- -- -- -- -- --

COBALT 1.1 0.75 1.1 0.71 -- 0.68 1.1 1.1

COPPER 2.7 L 3.4 L 2 L 2.1 L 2.3 L 2.2 L 2.5 L 2.35 L

MAGNESIUM 274000 280000 261000 257000 269000 299000 260000 266500

MANGANESE 77.8 74.9 71 76.6 76.1 78.3 72.6 77.3

NICKEL 2.7 -- 2.8 -- 2.6 2 2.4 2.4

POTASSIUM 119000 J 123000 J 114000 J 112000 J 118000 J 131000 J 114000 J 116000 J

SODIUM 2090000 2160000 2010000 2000000 2040000 2350000 2010000 2030000

VANADIUM 6.3 K 5.7 K 5 K 5 K 5.9 K 6.3 K 5.9 K 6.1 K

ZINC 22.2 B 20.3 B 22 B 26.8 K 19 B 17.8 B 28.9 K 33.15 KINORGANICS FILTERED (ug/L)ALUMINUM 24.6 B 25.7 B 26.7 B 27.5 B 32.5 B 21.3 B 22 B 24.95 B

ARSENIC -- -- -- -- 2.8 K -- -- --

BARIUM 35.1 35.9 36.1 34.4 36 34.9 35.7 36

BERYLLIUM -- -- -- -- -- -- -- --

CALCIUM 102000 101000 94300 94000 97900 106000 96400 97200

COBALT -- 0.87 0.73 -- 0.8 -- 1.2 1.2COPPER 1.6 L 1.5 L 1.1 L 1.1 L 0.98 L 1.1 L 1.4 L 1.4 L

TABLE 2-4



SAMPLE ID: SW1-15 SW1-17 SW1-20 SW1-23 SW1-SA05 SW1-SA10-01 SW1-SA15-01 SW1-SA15-01-AVGLABORATORY ID: C6A060148010DL C6A060148012 C6A060148004 C6A060148005 C6A060148011 C6A060148013 C6A060148002 C6A060148002

SAMPLE DATE: 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006LOCATION: SW1-15 SW1-17 SW1-20 SW1-23 SW1-SA05-01 SW1-SA10-01 SW1-SA15-01 SW1-SA15-01

MAGNESIUM 279000 276000 254000 254000 266000 294000 261000 263500

MANGANESE 68.7 68 65.6 69.6 66.7 69.6 68 68.35

MERCURY -- -- -- -- -- -- -- --

NICKEL 2.1 2.5 2.4 -- 2.2 -- -- --

POTASSIUM 122000 J 121000 J 111000 J 110000 J 116000 J 130000 J 114000 J 114500 J

SODIUM 2090000 2090000 1970000 1920000 2010000 2230000 2000000 2005000

VANADIUM 6.6 K 7.5 K 6.1 K 6.8 K 7.2 K 7.1 K 6 K 6.5 K

ZINC 10.4 B 11.8 B 13.9 B 10.3 B 9.4 B 17.9 B 15.2 B 14.95 BPESTICIDES/PCBs (ug/L)4,4'-DDE -- -- -- -- -- 0.095 -- --

4,4'-DDT -- -- -- -- -- 0.42 -- -- MISCELLANEOUS (mg/L)CYANIDE -- -- -- -- -- -- -- -- MISC (S.U.)PH 8.6 8.5 8.7 8.8 8.6 8.8 8.6 8.65VOLATILES (ug/L)ACETONE NA 3.3 J 3.6 J NA 3.9 J NA 3.9 J 3.9 J

NA = Not Analyzed

-- = Not detected

See table 2-5 for explantion of data validation qualifiers.

TABLE 2-4



SAMPLE ID:LABORATORY ID:

SAMPLE DATE:LOCATION:

SEMIVOLATILES (ug/L)BIS(2-ETHYLHEXYL)PHTHALATE

CAPROLACTAMINORGANICS (ug/L)ALUMINUM

ARSENIC

BARIUM

CALCIUM

CHROMIUM

COBALT

COPPER

MAGNESIUM

MANGANESE

NICKEL

POTASSIUM

SODIUM

VANADIUM

ZINCINORGANICS FILTERED (ug/L)ALUMINUM

ARSENIC

BARIUM

BERYLLIUM

CALCIUM

COBALTCOPPER

SW1-SA15-01-D SW1-SA20 SW1-SA20-AVG SW1-SA20-D SW1-SA25 SW1-SA30-01 SW1-SA35C6A060148003 C6A060148007 C6A060148007 C6A060148008 C6A060148009 C6A060148001 C6A060148006

1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006SW1-SA15-01 SW1-SA20-01 SW1-SA20-01 SW1-SA20-01 SW1-SA25-01 SW1-SA30-01 SW1-SA35-01

-- -- -- -- -- -- --

-- -- -- -- -- -- 1.5 J

48.2 B 38.4 B 36.55 B 34.7 B 32.1 B 49.3 B 39.5 B

-- -- -- -- 2.4 K 2.8 K --

36.2 36.6 36.55 36.5 35.1 36.6 36

100000 98100 97700 97300 97800 95200 96000

-- 1 K 0.7375 K -- -- -- --

1.1 0.98 0.94 0.9 1 1.1 0.79

2.2 L 2.5 L 2.45 L 2.4 L 1.8 L 2.5 L 1.9 L

273000 267000 266000 265000 269000 258000 261000

82 79.2 79.05 78.9 73.7 73.4 74.8

2.4 2.4 2.4 2.4 2.7 2.1 --

118000 J 116000 J 116000 J 116000 J 117000 J 112000 J 113000 J

2050000 2000000 2000000 2000000 2050000 1980000 1990000

6.3 K 6.4 K 6 K 5.6 K 6.1 K 5.2 K 6.1 K

37.4 K 22 B 18 K 25 K 16.9 B 19.8 B 22.8 K

27.9 B -- -- 22.8 B 20.9 B 25.4 B 19.6 B

-- 2.4 K 1.75 K -- 2.3 K -- --

36.3 34.4 34.7 35 35 35.7 35.7

-- 0.22 B 0.2 B -- 0.18 B -- 0.21 B

98000 96400 97150 97900 99200 96000 99600

1.2 1.2 0.985 0.77 0.99 1.2 -- 1.4 L 1 L 1.1 L 1.2 L 1.5 L 1.1 L 0.98 L

TABLE 2-4



SAMPLE ID:LABORATORY ID:

SAMPLE DATE:LOCATION:

MAGNESIUM

MANGANESE

MERCURY

NICKEL

POTASSIUM

SODIUM

VANADIUM

ZINCPESTICIDES/PCBs (ug/L)4,4'-DDE

4,4'-DDTMISCELLANEOUS (mg/L)CYANIDEMISC (S.U.)PHVOLATILES (ug/L)ACETONE

NA = Not Analyzed

-- = Not detected

See table 2-5 for explantion of data v

SW1-SA15-01-D SW1-SA20 SW1-SA20-AVG SW1-SA20-D SW1-SA25 SW1-SA30-01 SW1-SA35C6A060148003 C6A060148007 C6A060148007 C6A060148008 C6A060148009 C6A060148001 C6A060148006

1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006 1/5/2006SW1-SA15-01 SW1-SA20-01 SW1-SA20-01 SW1-SA20-01 SW1-SA25-01 SW1-SA30-01 SW1-SA35-01

266000 263000 265000 267000 271000 260000 271000

68.7 68.9 69.7 70.5 68.5 69.9 70.1

-- -- 0.0292 0.039 -- -- --

-- 2.2 2.25 2.3 2.6 2.1 2

115000 J 113000 J 113500 J 114000 J 117000 J 114000 J 117000 J

2010000 2010000 2010000 2010000 2070000 1990000 2050000

7 K 6.1 K 6.5 K 6.9 K 7.1 K 3.6 K 6.4 K

14.7 B 13.4 B 12.3 B 11.2 B 23.4 B 18 B 11.6 B

-- -- -- -- -- -- --

-- -- -- -- -- -- --

-- 6 6 -- -- -- --

8.7 8.7 8.7 8.7 8.8 8.6 8.7

-- 3.8 J 3.95 J 4.1 J NA NA NA

PAGE 1 OF 2

TABLE 2-5

SUMMARY OF ESTIMATED HUMAN HEALTH RISKSSITE 1 – DRYDOCK SEDIMENTS

UNITED STATES COAST GUARD YARDBALTIMORE, MARYLAND

Incremental LifetimeCancer Risks

Exposure Scenario Central Reasonable Central ReasonableTendency Maximum Tendency MaximumExposure Exposure Exposure Exposure

Surface Water Dermal Contact 3E-10 6E-10 0.00005 0.0001 Sediment Ingestion 2E-07 1E-06 0.1 0.5 Sediment Dermal Contact 4E-08 2E-07 0.08 0.5 Total Sediment Risk 3E-07 1E-06 0.2 1.0 Total Risk All Media 3E-07 1E-06 0.2 1.0

Surface Water Dermal Contact 9E-10 2E-09 0.00005 0.0001 Sediment Ingestion 1E-07 6E-07 0.03 0.1 Sediment Dermal Contact 2E-08 1E-07 0.02 0.09 Total Sediment Risk 2E-07 7E-07 0.04 0.2 Total Risk All Media 2E-07 7E-07 0.04 0.2

Surface Water Dermal Contact 3E-10 3E-09 0.00001 0.00002 Fish Ingestion 2E-07 2E-06 0.7 1 Total Risk All Media 2E-07 2E-06 0.7 1

Fish Ingestion 2E-07 2E-06 0.7 1

Surface Water Incidental Ingestion 4E-08 8E-08 0.0006 0.001 Surface Water Dermal Contact 1E-08 2E-08 0.0002 0.0003 Total Surface Water Risk 5E-08 1E-07 0.0008 0.002 Fish Ingestion 7E-07 1E-06 1 2(1)

Total Risk All Media 7E-07 1E-06 1 2

Surface Water Incidental Ingestion 5E-08 1E-07 0.004 0.004 Surface Water Dermal Contact 6E-09 2E-08 0.0005 0.0005 Total Surface Water Risk 5E-08 2E-07 0.004 0.004

Surface Water Incidental Ingestion 2E-08 1E-07 0.0004 0.0008 Surface Water Dermal Contact 6E-09 4E-08 0.0001 0.0003 Total Surface Water Risk 2E-08 2E-07 0.0005 0.001 Fish Ingestion 4E-07 3E-06 0.7 1 Total Risk All Media 4E-07 3E-06 0.7 1

Surface Water Incidental Ingestion 7E-08 1E-07 NA NA Surface Water Dermal Contact 1E-08 4E-08 NA NA Total Surface Water Risk 8E-08 2E-07 NA NA Fish Ingestion 4E-07 3E-06 NA NA Total Risk All Media 5E-07 3E-06 NA NA

Hazard Indices

Dredger Worker

Adult Recreational User

Lifelong Recreational User

Construction Worker

Facility Maintenance Worker

Industrial Worker

Adolescent Trespasser

Child Recreational User

PAGE 2 OF 2

TABLE 2-5

SUMMARY OF ESTIMATED HUMAN HEALTH RISKSSITE 1 – DRYDOCK SEDIMENTS


Incremental LifetimeCancer Risks

Exposure Scenario Central Reasonable Central ReasonableTendency Maximum Tendency MaximumExposure Exposure Exposure Exposure

Hazard Indices

Child Residents Surface Water Incidental Ingestion 2E-08 1E-07 0.002 0.004 Surface Water Dermal Contact 3E-09 2E-08 0.0002 0.0005 Total Surface Water Risk 3E-08 2E-07 0.002 0.004Adult Residents Surface Water Incidental Ingestion 2E-08 1E-07 0.0004 0.0008 Surface Water Dermal Contact 6E-09 4E-08 0.0001 0.0003 Total Surface Water Risk 2E-08 2E-07 0.0005 0.001 Fish Ingestion 4E-07 3E-06 0.7000 1.000 Total Risk All Media 4E-07 3E-06 0.7 1

Surface Water Incidental Ingestion 4E-08 3E-07 NA NA Surface Water Dermal Contact 3E-08 6E-08 NA NA Total Surface Water Risk 7E-08 3E-07 NA NA Fish Ingestion 4E-07 3E-06 NA NA Total Risk All Media 5E-07 3E-06 NA NA

1 - Manganese and mercury were the major contributors to the Hazard Index for the adolescent trepasser from ingestion of fish. Concentrations of manganese in surface water were within background levels.

Lifelong Residents

TABLE 2-6STATISTICAL SUMMARY FOR SURFACE WATER

SITE 1 - DRYDOCK SEDIMENTSCOAST GUARD YARD, BALTIMORE, MARYLAND

MINIMUM MAXIMUM

ARSENIC 3/11 2.4 2.8 1.51 SW1-SA30-01 2.2 - 2.2 UG/L 5 0.56 6.9 3.44BARIUM 11/11 35.1 37 36.27 SW1-SA15-01 - UG/L 4 9.25 11 35.1 25.51 10 11CALCIUM 11/11 95,200 108,000 98,518 SW1-SA10-01 - UG/L 116,000 0.93 115,000 68,346 11CHROMIUM 1/11 1 1 0.5 SW1-SA20 0.95 - 0.95 UG/L 1.5(3) 0.067 3.1 1.054

SW1-SA15-01SW1-SA15-01-DSW1-SA30-01

SW1-20SW1-15

COPPER 11/11 1.8 3.4 2.34 SW1-17 - UG/L 3.1 1.1 1 16.5 7.2MAGNESIUM 11/11 257,000 299,000 269,136 SW1-SA10-01 - UG/L 82,000 3.65 11 314,000 179,722 11MANGANESE 11/11 71 82 75.72 SW1-SA15-01-D - UG/L 120 0.68 105 80.41NICKEL 8/11 2 2.8 2.06 SW1-20 2 - 2 UG/L 8.2 0.34 8.8 2.32 6POTASSIUM 11/11 112,000 131,000 117,364 SW1-SA10-01 - UG/L 53,000 2.47 11 98,400 60,878 11 11SODIUM 11/11 1,980,000 2,350,000 2,063,636 SW1-SA10-01 - UG/L 680,000 3.46 11 3,150,000 1,532,464 11VANADIUM 11/11 5 6.4 5.79 SW1-SA20 - UG/L 20 0.32 8.8 2.03 11ZINC 4/11 22.8 37.4 15.43 SW1-SA15-01-D 16.9 - 22.2 UG/L 81 0.46 53.35 21.94 3

ARSENIC 3/11 2.3 2.8 1.42 SW1-SA05 2.2 - 2.2 UG/L 5 0.56 5.15 3.69BARIUM 11/11 34.4 36.3 35.41 SW1-SA15-01-D - UG/L 4 9.07 11 46.5 33.44 11CALCIUM 11/11 94,000 106,000 98,577 SW1-SA10-01 - UG/L 116,000 0.91 76,700 61,828 11 11COBALT 7/11 0.73 1.2 0.74 SW1-SA30-01 0.68 - 0.68 UG/L 23 0.05 0.8 0.57 5 7COPPER 11/11 0.98 1.6 1.22 SW1-15 - UG/L 3.1 0.52 8.25 6.52MAGNESIUM 11/11 254,000 294,000 268,500 SW1-SA10-01 - UG/L 82,000 3.59 11 200,000 158,614 11 11MANGANESE 11/11 65.6 70.5 68.61 SW1-SA20-D - UG/L 120 0.68 89.8 80.36MERCURY 1/11 0.039 0.039 0.02 SW1-SA20-D 0.039 - 0.039 UG/L 0.016 2.44 1 10 0.0125 0.0125 1 1NICKEL 8/11 2 2.6 1.92 SW1-SA25 2 - 2 UG/L 8.2 0.34 1.3 1.3 8 8POTASSIUM 11/11 110,000 130,000 116,909 SW1-SA10-01 - UG/L 53,000 2.45 11 74,700 59,435 11 11SODIUM 11/11 1,920,000 2,230,000 2,039,545 SW1-SA10-01 - UG/L 680,000 3.28 11 1,700,000 1,346,571 11 11VANADIUM 11/11 3.6 7.5 6.49 SW1-17 - UG/L 20 0.375 0.95 0.95 11 11

CYANIDE 1/11 6 6 5.09 SW1-SA20 10 - 10 UG/L 1 6 1 10

BIS(2-ETHYLHEXYL)PHTHALATE 1/11 10 10 5.31 SW1-15 9.4 - 10 UG/L 16 0.625 5 4.56 1 1CAPROLACTAM 1/11 1.5 1.5 4.53 SW1-SA35 9.4 - 10 UG/L NA NA 5 4.57

ACETONE 5/5 3.3 4.1 3.73 SW1-SA20-D 10 - 10 UG/L 1,500 0.0027 5 4.67

4,4'-DDE 1/11 0.095 0.095 0.052 SW1-SA10-01 0.094 - 0.095 UG/L 0.14 0.68 0.05 0.05 1 14,4'-DDT 1/11 0.42 0.42 0.081 SW1-SA10-01 0.094 - 0.095 UG/L 0.0005 840 1 10 0.05 0.05 1 1

Footnotes:(1) Sample and duplicate are considered as two separate samples when determining the minimum and maximum concentrations.(2) Values presented are sample-specific quantitation limits.(3) Screening criteria for hexavalent chromium.

MISCELLANEOUS (UG/L)

SEMIVOLATILES (ug/L)

VOLATILES (ug/L)

PESTICIDES/PCBs (ug/L)

INORGANICS (UG/L)

RANGE OF DETECTEDCONCENTRATIONS(1)

CHEMICALFREQUENCY

OF DETECTION

MEAN BACKGROUND

CONC

# DETECTS > MAX

BACKGROUND CONC

# DETECTS > MEAN BG

CONC

INORGANICS FILTERED (UG/L)

MEAN OF ALL DATA

LOCATION OF MAXIMUM

CONCENTRATION

RANGE OF NONDETECTS(2) UNITS

ECOLOGICAL SCREENING

VALUE

MAXIMUM HAZARD

QUOTIENT (HQ)

NUMBER OF DETECTS > SCREENING

VALUE

NUMBER OF NONDETECTS >

SCREENING VALUE

MAXIMUM BACKGROUND

CONC

41.0863.10.05230.6810/11COBALT UG/L0.68 - 0.680.8741.1

TABLE 2-7STATISTICAL SUMMARY FOR SEDIMENT


PAGE 1 OF 2

MINIMUM MAXIMUM

ALUMINUM 51/51 3,510 16,200 11,700 SD1-SA04-01 - NA NA 21100 10723 34ANTIMONY 4/51 2.2 4.9 2.12 SD1-18 1.4 - 5.9 2 2.45 4 46 14.2 2.37 3ARSENIC 51/51 12 64.8 36.55 SD1-CR-SA18(0-0.5) - 9.8 6.61 51 109 45.17 5BARIUM 50/51 24.5 283 84.47 SD1-22 81.1 - 81.1 48 5.9 47 1 182 61.02 1 47BERYLLIUM 6/51 1.8 10.9 1.38 SD1-SA20-01 0.74 - 3.7 NA NA 4.2 2.07 1 5CADMIUM 51/51 0.49 3.4 1.17 SD1-18 0.23 - 0.23 0.99 3.43 35 7.2 3.24 1CALCIUM 51/51 1080 55200 6329 SD1-22 - NA NA 23800 5073.74 1 13CHROMIUM 51/51 31.3 266 103 SD1-18 - 43.4 6.13 50 341 116.11 14COBALT 51/51 5.1 55 19.25 SD1-22 - 50 1.1 1 36.7 19.035 1 23COPPER 51/51 92.1 1400 380.45 SD1-18 - 31.6 44.3 51 570 241.88 5 47IRON 51/51 15200 65,800 47971 SD1-SA14-01 - 20000 3.29 50 94800 49997 25LEAD 51/51 53.8 2,860 238 SD1-18 - 35.8 79.89 51 717 202.43 1 12MAGNESIUM 51/51 1470 8,340 5781 SD1-16-D - NA NA 8830 4163.07 44MANGANESE 51/51 190 9,260 1,011 SD1-22 - 460 20.13 49 1370 546.96 1 46MERCURY 11/51 0.61 5 0.62 SD1-16 0.28 - 1.3 0.18 25 11 40 33.2 2.34 1NICKEL 51/51 10.3 83.9 40.36 SD1-SA20-01 - 22.7 3.7 48 97.1 38.57 23POTASSIUM 30/51 1710 3650 2033 SD1-15 693 - 3490 NA NA 2890 1506.33 12 30

SD1-SA29-01SD1-15

SILVER 7/51 0.58 2.6 0.54 SD1-22 0.31 - 1.3 1 2.6 4 4 7.2 0.668 4SODIUM 51/51 3880 28,100 16,749 SD1-15 - NA NA 21900 7881.26 10 48VANADIUM 51/51 33.2 140 107.01 SD1-SA22-01 - 57 2.46 49 223 113.62 25ZINC 51/51 263 5,140 811.75 SD1-SA20-01 - 121 42.48 51 1040 493.33 4 41

CYANIDE 6/8 0.079 0.27 0.15 SD1-CR-SA18(0-0.5) 0.18 - 0.5 0.1 2.7 4 2TOTAL ORGANIC CARBON 10/10 8,820 70,200 44,622 SD1-16-D - NA NA 73300 37301 8

TRIBUTYLTIN 2/10 14 16 7.47 SD1-SA14-01 8.8 - 12 NA NA

PERCENT MOISTURE 40/40 53.5 86.6 81.63 SD1-SA19-01 - NA NAPERCENT SOLIDS 29/29 10.8 47.5 16.11 SD1-SA30-01 - NA NA

2-METHYLNAPHTHALENE 2/51 330 2,800 1009 SD1-16 710 - 2900 20.2 138.61 2 49 190 166.75 2 2SD1-19

SD1-SA07-01ACENAPHTHYLENE 3/51 190 490 966.27 SD1-20 710 - 3100 5.9 83.05 3 48 110 110 3 3ACETOPHENONE 1/51 210 210 992.45 SD1-SA05-01 710 - 3100 NA NA 250 195 1ANTHRACENE 8/51 150 2,200 945.88 SD1-20-D 710 - 3100 57.2 38.46 8 43 355 222.5 5 7BENZALDEHYDE 19/51 150 490 715.59 SD1-15 710 - 2700 NA NA 300 195 8 16BENZO(A)ANTHRACENE 49/51 100 7,600 624.8 SD1-20 1200 - 2300 108 70.37 48 2 1030 355.57 5 21BENZO(A)PYRENE 46/51 77 5,500 594.84 SD1-20 1200 - 2900 150 36.67 45 5 955 266.91 5 33BENZO(B)FLUORANTHENE 51/51 130 7,700 786.96 SD1-20 - 1035 310.25 6 49BENZO(G,H,I)PERYLENE 35/51 160 2,900 614.51 SD1-20 710 - 2700 170 17.06 33 16 110 110 35 35BENZO(K)FLUORANTHENE 22/51 120 2,400 808.43 SD1-20 710 - 2900 240 10 14 29 890 255.79 3 14BIS(2-ETHYLHEXYL)PHTHA 48/51 92 1,800 518.96 SD1-14 1200 - 2300 180 10 45 3 3000 675.91 8BUTYL BENZYL PHTHALAT 10/51 240 370 847.35 SD1-SA17-01 710 - 3100 10900 0.034CAPROLACTAM 6/51 220 1,400 945.98 SD1-SA24-01 710 - 3100 NA NACHRYSENE 50/51 120 8,200 755.1 SD1-20 2300 - 2300 166 49.4 48 1 1055 308 6 38DIBENZO(A,H)ANTHRACEN 4/51 280 860 956.96 SD1-20 710 - 3100 33 26.06 4 47 220 220 4 4DIBENZOFURAN 1/51 190 190 996.96 SD1-SA07-01 710 - 3100 415 0.458 50 250 250DI-N-BUTYL PHTHALATE 1/51 370 370 995.59 SD1-SA32-01-D 710 - 3100 6,470 0.057DI-N-OCTYL PHTHALATE 1/51 340 340 992.06 SD1-SA17-01 710 - 3100FLUORANTHENE 51/51 120 18,000 1565.59 SD1-20 - 423 42.55 44 1675 398.89 9 45FLUORENE 2/51 220 400 982.16 SD1-20 710 - 3100 77.4 5.17 2 49 226.5 226.5 1 1INDENO(1,2,3-CD)PYRENE 36/51 150 2,700 589.8 SD1-20 710 - 2400 17 158.82 36 15 295 186.25 19 32ISOPHORONE 1/51 340 340 996.96 SD1-SA33-01 710 - 3100 NA NANAPHTHALENE 3/51 170 710 971.08 SD1-16 710 - 2900 176 4.034 2 48 290 225 2 2PHENANTHRENE 26/51 120 2,100 723.82 SD1-20 710 - 3100 204 10.29 21 25 1270 514 2 4

450 3 3179.1 5 46 450

SEMIVOLATILES (UG/KG)

ACENAPHTHENE 5/51 170 1200 982.75 710 - 3100 6.7

24

MISCELLANEOUS (MG/KG)

MISCELLANEOUS (UG/KG)

MISCELLANEOUS (%)

26 10.1 1.592 4.1 292.9 7 3 1.3 - 5.8

INORGANICS (MG/KG)

NUMBER OF DETECTS > MEAN

BACKGROUND CONCENTRATION

SELENIUM 24/51

MEAN BACKGROUND

CONCENTRATION

NUMBER OF DETECTS > MAX BACKGROUND

CONCENTRATION

CONCENTRATIONS(1) MAXIMUM HAZARD

QUOTIENT (HQ)


VALUE


SCREENING VALUE

MAXIMUM BACKGROUND

CONCENTRATION

LOCATION OF MAXIMUM

CONCENTRATION

RANGE OF NONDETECTS(2)


VALUECHEMICAL

FREQUENCY OF

DETECTION

RANGE OF DETECTED

MEAN OF ALL DATA

TABLE 2-7STATISTICAL SUMMARY FOR SEDIMENT


PAGE 2 OF 2

MINIMUM MAXIMUM

NUMBER OF DETECTS > MEAN

BACKGROUND CONCENTRATION

MEAN BACKGROUND

CONCENTRATION

NUMBER OF DETECTS > MAX BACKGROUND

CONCENTRATION

CONCENTRATIONS(1) MAXIMUM HAZARD

QUOTIENT (HQ)


VALUE


SCREENING VALUE

MAXIMUM BACKGROUND

CONCENTRATION

LOCATION OF MAXIMUM

CONCENTRATION

RANGE OF NONDETECTS(2)


VALUECHEMICAL

FREQUENCY OF

DETECTION

RANGE OF DETECTED

MEAN OF ALL DATA

PYRENE 51/51 180 10,000 1236.96 SD1-20 - 195 51.28 50 1800 470.53 5 44TOTAL PAH 51/51 890 71,340 6687 SD1-20 - 1610 44.31 48

ACETONE 5/18 27 150 42.71 SD1-16-D 37 - 93 NA NA 86 21.95 3 5METHYLENE CHLORIDE 1/18 12 12 18.97 SD1-SA25-01 5.7 - 89 NA NA

4,4'-DDD 2/49 27 89 12.07 SD1-22 11 - 31 4.88 18.24 2 474,4'-DDE 9/51 7.6 35 10.88 SD1-22 7.1 - 31 3.16 11.08 9 424,4'-DDT 51/51 9.3 60 23.02 SD1-CR-SA18(0-0.5) - 4.16 14.42 51TOTAL DDT 51/51 10 162 27.5029412 SD1-22 - 5.28 30.68 51ALPHA-CHLORDANE 16/50 2.1 11 5.52 SD1-15 5.9 - 16 3.24 3.4 14 34AROCLOR-1254 35/51 87 550 173.37 SD1-CR-SA18(0-0.5) 120 - 310 0 0 35 16AROCLOR-1260 51/51 120 770 284.22 SD1-CR-SA18(0-0.5) - 0 0 51 710 182.58 1 46TOTAL AROCLOR 51/51 120 1320 423.519608 SD1-CR-SA18(0-0.5) - 59.8 22.07 51 710(3) 182.58(3) 2 50DIELDRIN 1/51 19 19 10.23 SD1-SA18-01 7.1 - 31 1.9 10 1 50ENDOSULFAN I 1/51 3.2 3.2 5.18 SD1-SA20-01 3.7 - 16 2.9 1.1 1 50ENDOSULFAN II 5/45 6.3 23 10.95 SD1-22 11 - 31 14 1.64 2 37ENDRIN 5/42 11 22 11.1 SD1-SA18-01 11 - 31 2.22 9.91 5 37GAMMA-CHLORDANE 33/47 1.9 15 6.31 SD1-15 5.9 - 12 3.24 4.63 31 14 49 19.12Total dioxin-like PCBs (fish) ( 6/6 0.8084 1.9038 1.2626 SD1-20-D - 0.85 2.2 5Total dioxin-like PCBs (bird) ( 6/6 15.4507 36.8583 24.1937 SD1-20-D - 0.85 43.4 6

PCB-101 6/6 9600 20000 15550 SD1-16 - NA NAPCB-105 6/6 2200 4600 3458 SD1-16 - NA NAPCB-114 6/6 99 220 162.42 SD1-16 - NA NAPCB-118 6/6 6500 14000 10675 SD1-16 - NA NAPCB-126 6/6 150 360 235 SD1-20-D - NA NAPCB-128 6/6 1600 3600 2667 SD1-16 - NA NAPCB-128 6/6 1600 3600 2667 SD1-20-D - NA NAPCB-138 6/6 15000 33000 23167 SD1-20-D - NA NAPCB-153 6/6 17000 38000 26750 SD1-20-D - NA NAPCB-156 6/6 1100 2300 1792 SD1-20-D - NA NAPCB-156 6/6 1100 2300 1792 SD1-16 - NA NAPCB-157 6/6 200 530 349.17 SD1-20-D - NA NAPCB-167 6/6 440 1000 710 SD1-20-D - NA NAPCB-170 6/6 6200 14000 9858 SD1-20-D - NA NAPCB-18 6/6 670 1700 1237.5 SD1-SA15-01-D - NA NAPCB-180 6/6 13000 29000 20417 SD1-20-D - NA NAPCB-187 6/6 9600 21000 14342 SD1-20-D - NA NAPCB-189 6/6 230 530 368.33 SD1-20-D - NA NAPCB-195 6/6 1200 2600 1908.33 SD1-20-D - NA NAPCB-206 6/6 2900 10000 5633.33 SD1-20-D - NA NAPCB-209 6/6 1900 4000 2983.33 SD1-16 - NA NAPCB-209 6/6 1900 4000 2983.33 SD1-20-D - NA NAPCB-28 6/6 2400 6100 4016.67 SD1-16 - NA NAPCB-44 6/6 2200 5000 3733.33 SD1-16 - NA NAPCB-52 6/6 5100 11000 8491.67 SD1-16 - NA NAPCB-66 6/6 3200 8200 5825 SD1-16 - NA NAPCB-8 6/6 600 1800 1255 SD1-SA15-01-D - NA NATOTAL PCBs 6/6 219180 353200 323935 SD1-SA05-01 - 59800 5.91 6Footnotes:(1) Sample and duplicate are considered as two separate samples when determining the minimum and maximum concentrations.(2) Values presented are sample-specific quantitation limits.(3) AROCLOR-1260 was the only Aroclor detected in background samples.

PESTICIDES/PCBs (UG/KG)

PESTICIDES/PCBs (NG/KG)

VOLATILES (UG/KG)

BALTIMOREYARDBALTIMOREYARD

9/25/06AS

FJK

CONTRACT NUMBER

5-10-07

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Legend

FenceTopographic Contour (1 Foot Interval)

RoadRailroadStorm Drain

Site Facility

FJK 5-10-07

FJK 05/10/07

#*

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SD1-234250 ug/kg

SD1-153470 ug/kg

SD1-144810 ug/kg

SD1-138190 ug/kg

SD1-2110980 ug/kg

SD1-2222120 ug/kg

SD1-SA38-011740 ug/kg

SD1-SA35-013270 ug/kg

SD1-SA33-014780 ug/kg

SD1-SA32-012460 ug/kg

SD1-SA32-01-D2420 ug/kg

SD1-SA31-012540 ug/kg

SD1-SA30-012020 ug/kg

SD1-SA29-012160 ug/kg

SD1-SA27-014790 ug/kg

SD1-SA26-012830 ug/kg

SD1-SA25-012510 ug/kg

SD1-SA24-011680 ug/kg

SD1-SA23-012300 ug/kg

SD1-SA22-012680 ug/kg

SD1-SA20-014810 ug/kg

SD1-SA19-013310 ug/kg

SD1-SA17-014350 ug/kg

SD1-SA16-016940 ug/kg

SD1-SA12-013010 ug/kg

SD1-SA11-013560 ug/kg

SD1-SA10-013550 ug/kg

SD1-SA09-012840 ug/kg

SD1-187390 ug/kg

SD1-174090 ug/kg

SD1-169570 ug/kg

SD1-16-D6400 ug/kg

SD1-2071340 ug/kg

SD1-20-D56470 ug/kgSD1-19

19620 ug/kg

SD1-SA34-012070 ug/kg

SD1-SA21-016550 ug/kg

SD1-SA18-012740 ug/kg

SD1-SA15-015460 ug/kg

SD1-SA15-01-D4600 ug/kg

SD1-SA14-015530 ug/kg

SD1-SA13-011680 ug/kg

SD1-SA08-014800 ug/kg

SD1-SA05-015870 ug/kg

SD1-SA04-013610 ug/kg

SD1-SA03-012970 ug/kg

SD1-SA02-014200 ug/kg

SD1-SA02-01-D3900 ug/kgSD1-SA01-01

3810 ug/kg

SD1-CR-SA22 (0-2)5330 ug/kg

SD1-CR-SA20 (0-0.5)4040 ug/kg

SD1-CR-SA06 (0-2)9830 ug/kg

SD1-SA07-0130910 ug/kg

SD1-SA06-0123970 ug/kg

SD1-CR-SA18 (0-0.5)2570 ug/kg

SD1-CR-SA04 (0-1.5)4700 ug/kg

SD1-CR-SA05 (0-2)6650 ug/kg

SD1-CR-SA05-D (0-2)5740 ug/kg

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Ecological Screening Value Total PAH = 1610 ug/kgMax. Background = 16,680 ug/kg

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SD1-2318 ug/kg

SD1-1559 ug/kg

SD1-1432 ug/kg

SD1-1355 ug/kg

SD1-2116 ug/kg

SD1-22162 ug/kg

SD1-SA38-0118 ug/kg

SD1-SA37-0123 ug/kg

SD1-SA36-0123 ug/kg

SD1-SA36-01-D9 ug/kg

SD1-SA35-0118 ug/kg

SD1-SA33-0126 ug/kg

SD1-SA32-0121 ug/kg


SD1-SA31-0116 ug/kg

SD1-SA30-0133 ug/kg

SD1-SA29-0124 ug/kg

SD1-SA27-0111 ug/kg

SD1-SA26-0121 ug/kg

SD1-SA25-0120 ug/kg

SD1-SA24-0118 ug/kg

SD1-SA23-0134 ug/kg

SD1-SA22-0123 ug/kg

SD1-SA20-0131 ug/kg

SD1-SA19-0125 ug/kg

SD1-SA17-0123 ug/kg

SD1-SA16-0115 ug/kg

SD1-SA12-0119 ug/kg

SD1-SA11-0123 ug/kg

SD1-SA10-0128 ug/kg

SD1-SA09-0113 ug/kg

SD1-1818 ug/kg

SD1-1730 ug/kg

SD1-1630 ug/kg

SD1-16-D24 ug/kg

SD1-2025 ug/kg

SD1-1929 ug/kg

SD1-SA34-0115 ug/kg

SD1-SA28-0110 ug/kg

SD1-SA21-0130 ug/kg

SD1-SA18-0128 ug/kg

SD1-SA15-0115 ug/kg


SD1-SA14-0128 ug/kg

SD1-SA13-0115 ug/kg

SD1-SA08-0116 ug/kg

SD1-SA05-0128 ug/kg

SD1-SA04-0123 ug/kg

SD1-SA03-0121 ug/kg

SD1-SA02-0127 ug/kg

SD1-SA02-01-D26 ug/kgSD1-SA01-01

25 ug/kg

SD1-CR-SA22 (0-2)33 ug/kg

SD1-CR-SA20 (0-0.5)21 ug/kg

SD1-CR-SA06 (0-2)28 ug/kg SD1-SA07-01

27 ug/kg

SD1-SA06-0122 ug/kg

SD1-CR-SA18 (0-0.5)76 ug/kg

SD1-CR-SA04 (0-1.5)65 ug/kg

SD1-CR-SA05 (0-2)286 ug/kg

SD1-CR-SA05-D (0-2)80 ug/kg

k:\gproject\baltimore_yard\arcmap\SD_Eco_DDTs_Exceeded_Tabloid_wk.mxd

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Ecological Screening Value Total DDT = 3.89 ug/kg

Max. Background = Not detected. Detection Limits ranged from 4.2 to 61 ug/kg




LegendCore Sediment Locationhg


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SD1-23190 ug/kg

SD1-15420 ug/kg

SD1-14370 ug/kg

SD1-13420 ug/kg

SD1-21200 ug/kg

SD1-22940 ug/kg

SD1-SA38-01360 ug/kg

























SD1-18240 ug/kg

SD1-17360 ug/kg

SD1-16330 ug/kg

SD1-16-D270 ug/kg

SD1-20260 ug/kg

SD1-20-D190 ug/kg

SD1-19400 ug/kg











SD1-SA04-01480 ug/kgSD1-SA03-01

500 ug/kg




SD1-CR-SA22 (0-2)520 ug/kg

SD1-CR-SA20 (0-0.5)250 ug/kg

SD1-CR-SA06 (0-2)470 ug/kg



SD1-CR-SA18 (0-0.5)1320 ug/kg

SD1-CR-SA04 (0-1.5)1220 ug/kg

SD1-CR-SA05 (0-2)1600 ug/kg

SD1-CR-SA05-D (0-2)1540 ug/kg

k:\gproject\baltimore_yard\arcmap\SD_Eco_PCBs_Exceeded_Tabloid_wk.mxd

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0028

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Ecological Screening ValueTotal Aroclors (PCBs) = 40 ug/kg

Max. Background = 710 ug/kg



LegendCore Sediment LocationhgDiscrete Sediment Location#


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SD1-23 1.2 mg/kg

SD1-22 2.1 mg/kg

SD1-21 1.4 mg/kg

SD1-20

1.4 mg/kg

SD1-20-D 1.4 mg/kg

SD1-19 (0)1.4 mg/kg

SD1-17 1.4 mg/kg

SD1-15 1.3 mg/kg

SD1-14 1.3 mg/kg

SD1-13 1.1 mg/kg

SD1-SA31-01 1 mg/kg

SD1-SA01-01 1 mg/kg

SD1-SA34-01 1.2 mg/kg

SD1-SA33-01 1.5 mg/kg

SD1-SA32-01 1.3 mg/kg

SD1-SA29-01 1.3 mg/kg

SD1-SA26-01 1.5 mg/kg

SD1-SA25-01 1.2 mg/kg

SD1-SA24-01 1.1 mg/kg

SD1-SA23-01 1.2 mg/kg

SD1-SA22-01 1.1 mg/kg

SD1-SA19-01 1.5 mg/kg

SD1-SA17-01 1.4 mg/kg

SD1-SA12-01 1.2 mg/kg

SD1-SA10-01 1.6 mg/kg

SD1-SA07-01 1.5 mg/kg

SD1-SA37-01 0.97 mg/kg

SD1-SA35-01 0.69 mg/kg

SD1-SA30-01 0.81 mg/kg

SD1-SA28-01 0.81 mg/kg

SD1-SA16-01 0.76 mg/kg

SD1-SA15-01

0.81 mg/kg

SD1-SA15-01-D 0.8 mg/kg

SD1-SA11-01 0.95 mg/kg

SD1-SA32-01-D 0.97 mg/kg

SD1-18 3.4 mg/kg

SD1-16

1.4 mg/kg

SD1-16-D 1.5 mg/kg

SD1-SA21-01 1.5 mg/kg

SD1-SA18-01 1.3 mg/kg

SD1-SA14-01 1.1 mg/kg

SD1-SA06-01 1.2 mg/kg

SD1-SA05-011.1 mg/kg

SD1-SA04-01 1.3 mg/kg

SD1-SA03-01 1.4 mg/kg

SD1-SA02-01

1.4 mg/kg

SD1-SA02-01-D 1.1 mg/kg

SD1-SA20-01 0.86 mg/kg

SD1-SA13-01 0.97 mg/kg

SD1-CR-SA05 (0-2)

1.4 mg/kg

SD1-CR-SA05-D (0-2)1.5 mg/kg

SD1-CR-SA20 (0.05)0.74 mg/kg

SD1-CR-SA18 (0-0.5)0.79 mg/kg

SD1-CR-SA04 (0-1.5)0.86 mg/kg

k:\gproject\baltimore_yard\arcmap\SD_Eco_PAHs_Cadmium_Tabloid.mxd

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0028

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Ecological Screening ValueCadmium = 0.68 mg/kg

Max. Background = 7.2 mg/kg

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SD1-23 87 mg/kg

SD1-19 104 mg/kg

SD1-17 109 mg/kg

SD1-15 101 mg/kg

SD1-14 120 mg/kg

SD1-22 95.4 mg/kg

SD1-21 71.9 mg/kg

SD1-20

77.3 mg/kg

SD1-20-D 64.2 mg/kg

SD1-13 78.1 mg/kg

SD1-SA16-01 85 mg/kg

SD1-SA37-01 109 mg/kg

SD1-SA35-01 102 mg/kg

SD1-SA34-01 125 mg/kg

SD1-SA33-01 117 mg/kg

SD1-SA32-01

116 mg/kg

SD1-SA32-01-D 116 mg/kg

SD1-SA31-01 110 mg/kg

SD1-SA29-01 120 mg/kg

SD1-SA26-01 120 mg/kg

SD1-SA25-01 118 mg/kg

SD1-SA24-01 120 mg/kg

SD1-SA23-01 117 mg/kg

SD1-SA22-01 130 mg/kg

SD1-SA19-01 111 mg/kg

SD1-SA17-01 114 mg/kg

SD1-SA12-01 107 mg/kg

SD1-SA11-01 112 mg/kg

SD1-SA10-01 141 mg/kg

SD1-SA38-01 87.7 mg/kg

SD1-SA36-01

80.5 mg/kg

SD1-SA36-01-D 86 mg/kg

SD1-SA30-01 88.2 mg/kg

SD1-SA27-01 46.6 mg/kg

SD1-SA15-01

89.7 mg/kg

SD1-SA15-01-D 103 mg/kg

SD1-SA09-01 49.4 mg/kg

SD1-CR-SA22 (0-2)85.3 mg/kg

SD1-18 266 mg/kg

SD1-16

112 mg/kg

SD1-16-D 118 mg/kg

SD1-SA18-01 110 mg/kg

SD1-SA14-01 153 mg/kg

SD1-SA05-01 105 mg/kg

SD1-SA04-01 114 mg/kg

SD1-SA03-01 103 mg/kg

SD1-SA02-01

129 mg/kg

SD1-SA02-01-D 105 mg/kg

SD1-SA21-01 77.4 mg/kgSD1-SA20-01

73.6 mg/kg

SD1-SA13-01 81.9 mg/kg

SD1-SA08-01 55.4 mg/kg

SD1-SA07-01 81.1 mg/kg

SD1-SA06-01 88.3 mg/kg

SD1-SA01-01 91.5 mg/kg

SD1-CR-SA06 (0-2)93.6 mg/kg

SD1-CR-SA18 (0-0.5)135 mg/kg

SD1-CR-SA05 (0-2)

168 mg/kg

SD1-CR-SA05-D (0-2)200 mg/kg

SD1-CR-SA04 (0-1.5)107 mg/kg

SD1-CR-SA20 (0-0.5)97.3 mg/kg

k:\gproject\baltimore_yard\arcmap\SD_Eco_PAHs_Chromium_Tabloid.mxd

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0028

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Ecological Screening ValueChromium = 43.4 mg/kg

Max. Background = 341 mg/kg

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SD1-23 429 mg/kg

SD1-22 463 mg/kg

SD1-21 858 mg/kg

SD1-20

595 mg/kg

SD1-20-D 509 mg/kg

SD1-19 741 mg/kg

SD1-17 510 mg/kg

SD1-15 374 mg/kg

SD1-14 423 mg/kg

SD1-13 294 mg/kg


SD1-SA38-01 235 mg/kg

SD1-SA37-01 277 mg/kg

SD1-SA36-01

210 mg/kg

SD1-SA36-01-D 217 mg/kg

SD1-SA35-01 280 mg/kg

SD1-SA34-01 325 mg/kg

SD1-SA33-01 334 mg/kg

SD1-SA32-01

280 mg/kg

SD1-SA32-01-D 305 mg/kg

SD1-SA31-01 321 mg/kg

SD1-SA30-01 257 mg/kg

SD1-SA29-01 343 mg/kg

SD1-SA27-01 123 mg/kg

SD1-SA26-01 332 mg/kg

SD1-SA25-01 299 mg/kg

SD1-SA24-01 291 mg/kg

SD1-SA23-01 355 mg/kg

SD1-SA22-01 411 mg/kg

SD1-SA19-01 340 mg/kg

SD1-SA17-01 279 mg/kg

SD1-SA16-01 296 mg/kg SD1-SA15-01

419 mg/kg

SD1-SA15-01-D 414 mg/kg

SD1-SA12-01 268 mg/kg

SD1-SA11-01 265 mg/kg

SD1-SA10-01 321 mg/kg

SD1-SA09-01 258 mg/kg

SD1-16

488 mg/kg

SD1-16-D 559 mg/kg

SD1-18 1400 mg/kg

SD1-SA21-01 306 mg/kg

SD1-SA20-01 618 mg/kg

SD1-SA18-01 310 mg/kg

SD1-SA14-01 667 mg/kg

SD1-SA13-01 290 mg/kg

SD1-SA08-01 266 mg/kg

SD1-SA07-01 320 mg/kg

SD1-SA06-01 483 mg/kgSD1-SA05-01

427 mg/kg

SD1-SA04-01 394 mg/kg

SD1-SA03-01 276 mg/kg

SD1-SA02-01

300 mg/kg

SD1-SA02-01-D 258 mg/kg

SD1-SA01-01 256 mg/kg

SD1-CR-SA22 (0-2)206 mg/kg

SD1-CR-SA06 (0-2)322 mg/kg

SD1-CR-SA05 (0-2)

810 mg/kg

SD1-CR-SA05-D (0-2)2250 mg/kg

SD1-CR-SA20 (0-0.5)321 mg/kg

SD1-CR-SA18 (0-0.5)398 mg/kg

SD1-CR-SA04 (0-1.5)1260 mg/kg

k:\gproject\baltimore_yard\arcmap\SD_Eco_PAHs_Copper_Tabloid.mxd

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112G

0028

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Ecological Screening ValueCopper = 18.7 mg/kg


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SD1-23 233 mg/kg

SD1-22 220 mg/kg

SD1-21 160 mg/kg

SD1-20

166 mg/kg

SD1-20-D 137 mg/kg

SD1-19 293 mg/kg

SD1-17 192 mg/kg

SD1-15 177 mg/kg

SD1-14 254 mg/kg

SD1-13 150 mg/kg



SD1-SA38-01 145 mg/kg

SD1-SA37-01 176 mg/kg

SD1-SA36-01

118 mg/kg

SD1-SA36-01-D 144 mg/kg

SD1-SA35-01 160 mg/kg

SD1-SA34-01 199 mg/kg

SD1-SA33-01 183 mg/kg

SD1-SA32-01

174 mg/kg

SD1-SA32-01-D 181 mg/kg

SD1-SA31-01 163 mg/kg

SD1-SA30-01 152 mg/kg

SD1-SA29-01 197 mg/kg

SD1-SA26-01 185 mg/kg

SD1-SA25-01 184 mg/kg

SD1-SA24-01 183 mg/kg

SD1-SA23-01 193 mg/kg

SD1-SA22-01 224 mg/kg

SD1-SA19-01 180 mg/kg

SD1-SA17-01 183 mg/kg

SD1-SA16-01 151 mg/kg

SD1-SA15-01

190 mg/kg

SD1-SA15-01-D 183 mg/kg

SD1-SA12-01 170 mg/kg

SD1-SA11-01 173 mg/kg

SD1-SA10-01 210 mg/kg

SD1-SA09-01 306 mg/kg

SD1-16

209 mg/kg

SD1-16-D 217 mg/kg

SD1-18 2860 mg/kg

SD1-SA21-01 140 mg/kg

SD1-SA20-01 421 mg/kg

SD1-SA18-01 171 mg/kg SD1-SA14-01

264 mg/kg

SD1-SA13-01 155 mg/kg

SD1-SA08-01 138 mg/kg

SD1-SA07-01 165 mg/kg

SD1-SA06-01 174 mg/kg

SD1-SA05-01 167 mg/kg

SD1-SA04-01 197 mg/kg

SD1-SA03-01 170 mg/kg

SD1-SA02-01

202 mg/kg

SD1-SA02-01-D 173 mg/kg

SD1-SA01-01 169 mg/kg

SD1-CR-SA22 (0-2)137 mg/kg

SD1-CR-SA06 (0-2)243 mg/kg

SD1-CR-SA05 (0-2)

402 mg/kg

SD1-CR-SA05-D (0-2)1240 mg/kg

SD1-CR-SA20 (0-0.5)157 mg/kg

SD1-CR-SA18 (0-0.5)221 mg/kg

SD1-CR-SA04 (0-1.5)471 mg/kg

k:\gproject\baltimore_yard\arcmap\SD_Eco_PAHs_Lead_Tabloid.mxd

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112G

0028

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74D

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Ecological Screening ValueLead = 30.2 mg/kg


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SD1-22 1.1 mg/kg

SD1-19 1.7 mg/kg

SD1-17 1.1 mg/kg

SD1-13 1.2 mg/kg

SD1-23 0.86 mg/kg

SD1-21 0.76 mg/kg

SD1-SA36-01 0.95 mg/kg

SD1-CR-SA18 (0-0.5)1.7 mg/kg

SD1-16 4.5 mg/kg

SD1-18 0.61 mg/kg

SD1-SA21-01 1.9 mg/kg

SD1-CR-SA06 (0-2)1.8 mg/kg

SD1-CR-SA05 (0-2)

1.6 mg/kg

SD1-CR-SA05-D (0-2)1.8 mg/kg

SD1-CR-SA04 (0-1.5)1.2 mg/kg

k:\gproject\baltimore_yard\arcmap\SD_Eco_PAHs_Mercury_Tabloid.mxd

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112G

0028

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N B

Y

Ecological Screening ValueMercury = 0.13 mg/kg

Max. Background = 33.2 mg/kg

Legend

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!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

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!(

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!(

!(

!(

!(

!(

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!(

!(

!(

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!(

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!(

!(!(

!(

!(

SD1-23 716 mg/kg

SD1-22 969 mg/kg

SD1-21 690 mg/kg

SD1-17 878 mg/kg

SD1-15 759 mg/kg

SD1-14 898 mg/kg

SD1-13 891 mg/kg

SD1-20

1020 mg/kg

SD1-20-D 828 mg/kg

SD1-19 1250 mg/kg

SD1-SA38-01 406 mg/kgSD1-SA37-01

549 mg/kg

SD1-SA36-01

382 mg/kg

SD1-SA36-01-D 403 mg/kg

SD1-SA35-01 487 mg/kg

SD1-SA34-01 615 mg/kg

SD1-SA33-01 984 mg/kg

SD1-SA32-01

537 mg/kg

SD1-SA32-01-D 613 mg/kg

SD1-SA31-01 488 mg/kg

SD1-SA30-01 456 mg/kg

SD1-SA29-01 605 mg/kg

SD1-SA28-01 263 mg/kgSD1-SA27-01

263 mg/kg

SD1-SA26-01 609 mg/kg

SD1-SA25-01 570 mg/kg

SD1-SA24-01 615 mg/kg

SD1-SA23-01 652 mg/kg

SD1-SA22-01 852 mg/kg

SD1-SA19-01 715 mg/kg

SD1-SA17-01 630 mg/kg

SD1-SA16-01 486 mg/kg

SD1-SA15-01

592 mg/kg

SD1-SA15-01-D 631 mg/kg

SD1-SA12-01 611 mg/kg

SD1-SA11-01 543 mg/kg

SD1-SA10-01 610 mg/kg

SD1-SA09-01 407 mg/kg

SD1-18 2620 mg/kg

SD1-16

1030 mg/kg

SD1-16-D 1040 mg/kg

SD1-SA21-01 872 mg/kg

SD1-SA18-01 611 mg/kg

SD1-SA13-01 845 mg/kg

SD1-SA08-01 389 mg/kg

SD1-SA07-01 656 mg/kg

SD1-SA06-01 774 mg/kg

SD1-SA05-01 782 mg/kg

SD1-SA04-01 881 mg/kg

SD1-SA03-01 608 mg/kg

SD1-SA02-01

590 mg/kg

SD1-SA02-01-D 538 mg/kg

SD1-SA01-01 548 mg/kg

SD1-SA20-01 5140 mg/kg

SD1-SA14-01 1580 mg/kg

SD1-CR-SA22 (0-2)304 mg/kg

SD1-CR-SA06 (0-2)649 mg/kg

SD1-CR-SA05 (0-2)

2360 mg/kg

SD1-CR-SA05-D (0-2)2570 mg/kg

SD1-CR-SA20 (0-0.5)559 mg/kg

SD1-CR-SA18 (0-0.5)965 mg/kg

SD1-CR-SA04 (0-1.5)5280 mg/kg

k:\gproject\baltimore_yard\arcmap\SD_Eco_PAHs_Zinc_Tabloid.mxd

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Ecological Screening ValueZinc = 121 mg/kg


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SD1-22 9260 mg/kg

SD1-CR-SA05 (0-2)

2480 mg/kg

SD1-CR-SA05-D (0-2)2350 mg/kg

SD1-CR-SA04 (0-1.5)2100 mg/kg

k:\gproject\baltimore_yard\arcmap\SD_HH_Manganese_Exceeded_Tabloid_wk.mxd

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MANGANESE RBC = 1,600 mg/kgMax. Background = 1,370 mg/kg

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Core Sediment LocationhgDiscrete Sediment Location#

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SD1-18 266 mg/kg

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0028

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CHROMIUM RBC = 230 mg/kg


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SD1-18 2860 mg/kg

SD1-SA20-01 421 mg/kg

SD1-CR-SA05 (0-2)

402 mg/kg

SD1-CR-SA05-D (0-2)1240 mg/kg

SD1-CR-SA04 (0-1.5)471 mg/kg

k:\gproject\baltimore_yard\arcmap\SD_HH_Lead_Exceeded_Tabloid_wk.mxd

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LEAD RBC = 400 mg/kg

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!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

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!(

!(

SD1-23 400 J ug/kg

SD1-21 720 J ug/kg

SD1-18 580 J ug/kg

SD1-17 370 J ug/kg

SD1-14 330 J ug/kg

SD1-13 620 J ug/kg

SD1-22 1400 J ug/kg

SD1-SA28-01 77 J ug/kg

SD1-SA38-01 210 J ug/kg

SD1-SA36-01 180 J ug/kg

SD1-SA35-01 230 J ug/kg

SD1-SA33-01 350 J ug/kg

SD1-SA32-01

230 J ug/kg

SD1-SA32-01-D 230 J ug/kg

SD1-SA31-01 240 J ug/kg

SD1-SA30-01 210 J ug/kg

SD1-SA29-01 240 J ug/kg

SD1-SA27-01 270 J ug/kg

SD1-SA26-01 270 J ug/kg

SD1-SA25-01 280 J ug/kg

SD1-SA23-01 210 J ug/kg

SD1-SA22-01 280 J ug/kg

SD1-SA19-01 290 J ug/kg

SD1-SA17-01 350 J ug/kg

SD1-SA16-01 570 J ug/kg

SD1-SA12-01 290 J ug/kg

SD1-SA11-01 330 J ug/kg

SD1-SA10-01 310 J ug/kg

SD1-SA09-01 240 J ug/kg

SD1-16

470 J ug/kg

SD1-16-D 490 J ug/kg

SD1-20

5500 J ug/kg

SD1-20-D 3400 J ug/kg

SD1-19 1400 J ug/kg

SD1-SA21-01 340 J ug/kg

SD1-SA20-01 380 J ug/kg

SD1-SA18-01 290 J ug/kg

SD1-SA15-01

430 J ug/kg


SD1-SA14-01 400 J ug/kg

SD1-SA08-01 290 J ug/kg

SD1-SA05-01 470 J ug/kg

SD1-SA04-01 250 J ug/kg

SD1-SA03-01 260 J ug/kg

SD1-SA02-01 310 J ug/kg


SD1-SA01-01 330 J ug/kg

SD1-CR-SA22 (0-2)410 J ug/kg

SD1-CR-SA06 (0-2)370 J ug/kg

SD1-CR-SA05 (0-2)

410 J ug/kg

SD1-CR-SA05-D (0-2)380 J ug/kg

SD1-SA07-01 2000 J ug/kg

SD1-SA06-01 1900 J ug/kg

SD1-CR-SA20 (0-0.5)360 J ug/kg

SD1-CR-SA18 (0-0.5)240 J ug/kg

SD1-CR-SA04 (0-1.5)220 J ug/kg

k:\gproject\baltimore_yard\arcmap\SD_HH_Benzo_a_Pyrene_Exceeded_Tabloid.mxd

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112G

0028

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BENZO (A) PYRENE RBC = 0.87 ug/kg

Max. Background = 955 ug/kg

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!(

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!(

!(

!(

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!(

!(

!(

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!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(!(

!(

!(

SD1-21 31 mg/kg

SD1-23 32.6 mg/kg

SD1-22 41.5 mg/kg

SD1-19 34.9 mg/kg

SD1-17 43.3 mg/kg

SD1-15 39.7 mg/kg

SD1-14 45.5 mg/kg

SD1-13 30.5 mg/kg





SD1-SA38-01 32.9 mg/kg

SD1-SA37-01 38.3 mg/kg

SD1-SA36-01

34.1 mg/kg

SD1-SA36-01-D 33.1 mg/kg

SD1-SA35-01 35.2 mg/kg

SD1-SA34-01 40.4 mg/kg

SD1-SA32-01

37.3 mg/kg

SD1-SA32-01-D 37.3 mg/kg

SD1-SA31-01 38.3 mg/kg

SD1-SA30-01 33.6 mg/kg

SD1-SA29-01 45.9 mg/kg

SD1-SA27-01 18.4 mg/kg

SD1-SA26-01 38.7 mg/kg

SD1-SA25-01 39.6 mg/kg

SD1-SA24-01 42.8 mg/kg

SD1-SA23-01 44.9 mg/kg

SD1-SA22-01 48.5 mg/kg

SD1-SA20-01 20.3 mg/kg

SD1-SA19-01 42.9 mg/kg

SD1-SA17-01 40.3 mg/kg

SD1-SA16-01 30.7 mg/kg

SD1-SA15-01

34.6 mg/kg

SD1-SA15-01-D 36.8 mg/kg

SD1-SA11-01 41.8 mg/kg

SD1-SA10-01 52.4 mg/kg

SD1-SA07-01 29.6 mg/kg

SD1-SA03-01 39.2 mg/kg

SD1-SA01-01 29.5 mg/kg

SD1-20

35.6 mg/kg

SD1-20-D 29.2 mg/kg

SD1-18 26.2 mg/kg

SD1-16

41.6 mg/kg

SD1-16-D 43.4 mg/kg


SD1-CR-SA05 (0-2)

63 mg/kg

SD1-CR-SA05-D (0-2)74.5 mg/kg

SD1-CR-SA04 (2-4)29 mg/kg

SD1-CR-SA20 (1-3)6.7 mg/kg

SD1-CR-SA05 (2-4)8.3 mg/kg

SD1-SA21-01 35.4 mg/kg

SD1-SA14-01 43.8 mg/kg

SD1-SA13-01 23.9 mg/kg

SD1-SA09-01 21.7 mg/kg

SD1-SA06-01 36.9 mg/kg

SD1-SA05-01 36.1 mg/kg

SD1-SA04-01 (0)40.7 mg/kg

SD1-SA02-01

45.4 mg/kg

SD1-SA02-01-D 40 mg/kg

SD1-CR-SA22 (0-2)35.5 mg/kg

SD1-CR-SA18 (1-3)13.7 mg/kg

SD1-CR-SA06 (2-4)81.1 mg/kg

SD1-CR-SA06 (0-2)38.7 mg/kg

SD1-CR-SA20 (0-0.5)34.4 mg/kg

SD1-CR-SA18 (0-0.5)64.8 mg/kg

SD1-CR-SA04 (0-1.5)29.2 mg/kg

k:\gproject\baltimore_yard\arcmap\SD_HH_Arsenic_Exceeded_Tabloid_wk.mxd

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RS

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UN

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IMO

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112G

0028

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ARSENIC RBC = 4.3 mg/kgMax. Background = 109 mg/kg

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hg

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!(

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!(

!(

!(

!(

!(

!(

!(

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!(

SD1-21 89 mg/kg

SD1-23 100 mg/kg

SD1-22 115 mg/kg

SD1-17 124 mg/kgSD1-15

120 mg/kg

SD1-14 139 mg/kg

SD1-19 99.2 mg/kg

SD1-13 89.5 mg/kg

SD1-SA37-01 119 mg/kg

SD1-SA35-01 109 mg/kg

SD1-SA34-01 132 mg/kg

SD1-SA33-01 123 mg/kg

SD1-SA32-01

122 mg/kg

SD1-SA32-01-D 121 mg/kg

SD1-SA31-01 112 mg/kg

SD1-SA29-01 129 mg/kg

SD1-SA26-01 128 mg/kg

SD1-SA25-01 127 mg/kg

SD1-SA24-01 126 mg/kg

SD1-SA23-01 125 mg/kg

SD1-SA22-01 140 mg/kg

SD1-SA19-01 128 mg/kg

SD1-SA18-01 118 mg/kg

SD1-SA17-01 121 mg/kg

SD1-SA12-01 116 mg/kg

SD1-SA11-01 113 mg/kg

SD1-SA10-01 138 mg/kg

SD1-SA03-01 117 mg/kg

SD1-CR-SA22 (0-2)109 mg/kg

SD1-SA38-01 95.9 mg/kg

SD1-SA36-01

88.7 mg/kg

SD1-SA36-01-D 91.5 mg/kg

SD1-SA30-01 96.1 mg/kg

SD1-SA16-01 98.6 mg/kg

SD1-SA15-01

99.6 mg/kg

SD1-SA15-01-D 116 mg/kg

SD1-SA07-01 98.5 mg/kg

SD1-SA01-01 94.5 mg/kg

SD1-20

110 mg/kg

SD1-20-D 92.2 mg/kg

SD1-16

124 mg/kg

SD1-16-D 133 mg/kg

SD1-SA14-01 122 mg/kg

SD1-SA06-01 110 mg/kg

SD1-SA04-01 129 mg/kg

SD1-SA02-01

133 mg/kg

SD1-SA02-01-D 110 mg/kg

SD1-CR-SA05 (0-2)

127 mg/kg

SD1-CR-SA05-D (0-2)126 mg/kg

SD1-SA21-01 96.4 mg/kg

SD1-SA05-01 96.5 mg/kg

SD1-CR-SA06 (2-4)86.4 mg/kg

SD1-CR-SA06 (0-2)98.6 mg/kg

SD1-CR-SA20 (0-0.5)109 mg/kg

SD1-CR-SA18 (0-0.5)131 mg/kg

k:\gproject\baltimore_yard\arcmap\SD_HH_Vanadium_Exceeded_Tabloid_wk.mxd

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112G

0028

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VANADIUM RBC = 78 mg/kgMax. Background = 223 mg/kg

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!(!(!(

!(

SW1-SA25 2.3 ug/L (Filtered)SW1-SA25 2.4 ug/L

SW1-SA20 2.4 ug/L (Filtered)

SW1-SA05 2.8 ug/L (Filtered)SW1-SA05 2.6 ug/L

SW1-SA30-01 2.8 ug/L

0 100Feet

³K;\GProject\BaltimoreYard\arcmap\SW_Arsenic_Exceeded_wk.mxd

DATE

REV

0

JF 8/17/06 SURFACE WATER RESULTS EXCEEDING HUMAN HEALTH SCREENING AND BACKGROUND LEVELS



CHECKED BY DATE

COST/SCHEDULE-AREA

SCALEAS NOTED

FIGURE NO.

APPROVED BY

PROJECT NO

2-20

DTCG83-02-D-3CL374

112G00288

Legend

FenceRoad


Arsenic (Screening Level = 0.45 ug/L)


!(


FJK 5/10/07

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!(

!(

!(

SW1-SA20 6 ug/LSW1-SA20-D 0.039 ug/L

SW1-SA10-01 0.41999 ug/L

0 100Feet

³K;\GProject\BaltimoreYard\arcmap\SW_Mercury_Cyanide_DDT_Exceeded.mxd

DATE

REV

0

JF 8/4/06 SURFACE WATER RESULTS EXCEEDING ECOLOGICAL RISK SCREENING LEVELS -

4,4' - DDT, MERCURY, AND CYANIDE



CHECKED BY DATE

COST/SCHEDULE-AREA

SCALEAS NOTED

FIGURE NO.

APPROVED BY

PROJECT NO

2-21

DTCG83-02-D-3CL374

112G00288

Legend

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Cyanide (Screening Level = 1.0 ug/L)!(

Mercury (Screening Level = 0.016 ug/L)!(Note: Surface water concentrations of barium, copper, magnesium, potassium, and sodium also exceeded ecological screening levels. Magnesium, potassium and sodium are considered essential nutrients and are expected to be present in Site 1 and surrounding surface waters. Detected Site 1 barium and copper concentrations were similar to background, indicating their presence was not Site 1-specific. Therefore, this Figure does not present results for these surface water constituents.

4,4' - DDT (Screening Level = 0.0005 ug/L)!(

FJK 5/10/07

FJK 5/10/07

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SD1-20-D

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SD1-SA14-01

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SD1-SA02-01

SD1-SA01-01

SD1-CR-SA20

SD1-CR-SA18

SD1-SA36-01-D

SD1-SA32-01-D

SD1-SA15-01-D

SD1-SA02-01-D

SD1-16-D

SD1-SA21-01SD1-CR-SA22

SD1-CR-SA06

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Core Sediment Location

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Legend

Total PAHs > 1,610 ug/kg (TEC) > 16,680 ug/kg (Maximum Background)

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Total PAHs > 1,610 ug/kg (TEC) and > 2,573 ug/kg (Mean Background)

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Total PAHs > 22,800 ug/kg (PEC)!(

Total PAHs > 1,610 ug/kg (TEC) and < 2,573 ug/kg (Mean Background)

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Total PAHs < 1,610 ug/kg (TEC)!(

PEC = Probable Effect ConcentrationTEC = Threshold Effect Concentration

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SD1-SA23-01

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SD1-SA18-01

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SD1-SA15-01

SD1-SA14-01

SD1-SA13-01

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SD1-SA09-01

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SD1-SA07-01

SD1-SA06-01

SD1-SA05-01

SD1-SA04-01

SD1-SA03-01

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SD1-CR-SA20

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SD1-SA32-01-D

SD1-SA15-01-D

SD1-SA02-01-D

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Total DDT > 572 ug/kg (PEC)!(

Total DDT < 51.7 ug/kg (PEL) and > 3.89 ug/kg (TEC)

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Total DDT < 3.89 ug/kg (TEC)!(

NOTE: DDT was not detected in background sediment samples (Background reporting limits ranged from 4.2 to 61 ug/kg)



Discrete Sediment Location*Composite Sediment Location(

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PEC = Probable Effect Concentration (Freshwater)PEL = Probable Effect Level (Saltwater)TEC = Threshold Effect Concentration

Total DDT < 572 ug/kg (PEC) and > 51.7 ug/kg (PEL)

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FJK

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SD1-SA38-01

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SD1-SA35-01

SD1-SA34-01

SD1-SA33-01

SD1-SA32-01

SD1-SA31-01

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SD1-SA29-01

SD1-SA28-01

SD1-SA27-01

SD1-SA26-01

SD1-SA25-01

SD1-SA24-01

SD1-SA23-01

SD1-SA22-01

SD1-SA20-01

SD1-SA19-01

SD1-SA18-01

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SD1-SA16-01

SD1-SA15-01

SD1-SA14-01

SD1-SA13-01

SD1-SA12-01

SD1-SA11-01

SD1-SA10-01

SD1-SA09-01

SD1-SA08-01

SD1-SA07-01

SD1-SA06-01

SD1-SA05-01

SD1-SA04-01

SD1-SA03-01

SD1-SA02-01

SD1-SA01-01

SD1-CR-SA20

SD1-CR-SA18

SD1-SA36-01-D

SD1-SA32-01-D

SD1-SA15-01-D

SD1-SA02-01-D

SD1-16-D

SD1-SA21-01SD1-CR-SA22

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Discrete Sediment Location*

Composite Sediment Location(

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Total Aroclor > 40.0ug/kg (TEC) and > 183 ug/kg (Mean Background)

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Total Aroclor > 40.0 ug/kg (TEC) and < 183 ug/kg (Mean Background)

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Total Aroclor > 676 ug/kg (PEC) and > 710 ug/kg (Maximum Background)

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Total Aroclor < 40.0 ug/kg (TEC)

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Total Aroclor > 676 ug/kg (PEC) and < 710 ug/kg (Maximum Background)

PEC = Probable Effects ConcentrationTEC = Threshold Effects Concentration

FJK

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/07

FJK

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/07

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