C8026SamplingAnalysis_18-PCR016.pdf

AECOM 920.468.1978 tel

1035 Kepler Drive 920.468.3312 fax

Green Bay, Wisconsin 54311

Sediment Sampling and Analysis Report

United States Coast Guard (USCG) Station Annapolis Dredge Fishing Creek Channel Annapolis, Maryland USCG Project No. 4375691

AECOM 920.468.1978 tel

1035 Kepler Drive 920.468.3312 fax

Green Bay, Wisconsin 54311

August 15, 2012

Ms. Colleen A. Henry, Contracting Officer United States Coast Guard 1240 East Ninth Street, Room 2179 Cleveland, Ohio 44199-2060

Subject: USCG Station Annapolis, Dredge Fishing Creek Channel, Annapolis, Maryland --

USCG Project No. 4375691 -- AECOM Project No. 60264667

Dear Ms. Henry:

AECOM Technical Services, Inc. (AECOM) has completed the Sediment Sampling and Analysis

Report for the USCG Station Annapolis Dredge Fishing Creek Channel project.

This Sediment Sampling and Analysis Report describes the following in accordance with the Scope of Work §4 (Sampling and Analysis Scope): rationale used for sediment sample locations; field and analytical methods used for sediment sample collection and analysis, respectively; and geotechnical and chemical results for sediment samples.

Respectfully, AECOM Technical Services, Inc.

Terry A. Peterson, P.E.

Project Manager

Ravi Damera, P.E.

Project Engineer

AECOM 1-1

Contents

1.0 Introduction .................................................................................................................... 1-3

1.1 Operational Criteria/Requirements ...................................................................................... 1-3

1.2 Sediment Sampling Purpose and Scope ............................................................................ 1-3

2.0 Sampling and Analysis Field Activities ....................................................................... 2-1

2.1 Sediment Sampling and Analysis ........................................................................................ 2-1

2.1.1 Sediment Sampling Methodology ........................................................................ 2-1

3.0 Sampling and Analysis Results and Discussions ...................................................... 3-1

3.1 Chemical Analytical Results. ............................................................................................... 3-1

3.2 Geotechnical Analytical Results. ......................................................................................... 3-2

4.0 Dredge Spoils Disposal Options .................................................................................. 4-1

5.0 Findings and Recommendations ................................................................................. 5-2

6.0 References ..................................................................................................................... 6-1

AECOM 1-2

List of Figures

Figure 1 General Site Location

Figure 2 Site Location

Figure 3 Sediment Sample Locations

List of Tables

Table 1 Sediment Sample Summary

Table 2 Chemical and Physical Analytical Methods

Table 3 Summary of Chemical Analytical Results

Table 4 Summary of Physical Analytical Results

List of Appendices

Appendix A Sample Logs

Appendix B Validation Report

Appendix C Sediment Sample Laboratory Results – Chemical

Appendix D Sediment Sample Laboratory Results – Physical

AECOM 1-3

1.0 Introduction

As shown on Figure 1, Fishing Creek is an embayment located on the west side of the Chesapeake

Bay, about 10 miles southwest of the William Preston Lane, Jr. Memorial Bridge (the “Bay Bridge”) over the Chesapeake, and just north of a small point of land comprising Thomas Point Park. Fishing

Creek is situated in Anne Arundel County, in the State of Maryland.

The U.S. Coast Guard Station Annapolis is located on the west shore of Fishing Creek. The station is accessed via a short road from Thomas Point Road. Station Annapolis consists of an on-shore multi-purpose building, two small quarters buildings, a boat house, various service outbuildings, and an angled, steel sheet pile bulkhead, from which extend southeasterly a long, fixed wood finger pier and a shorter floating dock. The bulkhead provides a large equipment crane. The fixed pier serves

Response Boat – Medium (RB-M) and similar sized vessels; the floating dock serves Response Boat

– Small (RB-S) vessels.

The approach from Chesapeake Bay over Fishing Creek to Station Annapolis is via a roughly 1 ½ -mile navigational channel (Figure 2). Last maintenance-dredged in 2006, the channel is again in need of dredging to restore the desired navigational cross section.

1.1 Operational Criteria/Requirements

According to the project Specifications , the purpose of this project is to dredge the 7,450 foot long by

40 foot wide channel to a depth of minus nine feet (-9), at a minimum, and minus ten feet (-10), at a maximum, from Mean Low Water (MLW) in order for the unit’s small boats to transit and be able to execute their operational missions without the encumbrances of shoaling in the channel they currently are experiencing.

1.2 Sediment Sampling Purpose and Scope

The intent of this sampling and analysis program was to obtain necessary data to determine the chemical and physical characteristics of the sediment for dredge spoil disposal purposes. Figure 3 depicts the grab sediment sample locations.

This sampling and analysis report outlines the criteria, procedures, analytical parameters, and rational used to evaluate the levels of constituents of potential concern (CPOCs) within the sediment scheduled for dredging. A summary of the site sample collection methods and analytical results are presented in this report. The Scope of Work for the sampling and analysis consists of the following:

Collection of grab sediment samples for compositing from locations along the channel where dredging will be necessary;

Submittal of the composite sediment samples to a laboratory for chemical and physical analysis; and

Specifications for Dredge Fishing Creek Channel at U.S. Coast Guard Station Annapolis, Annapolis, Maryland

(July 2012)

AECOM 1-4

Development of this report that documents the field activities and results of the chemical and physical analysis of the proposed dredge material.

AECOM 2-1

2.0 Sampling and Analysis Field Activities

AECOM performed a review of the June 2012 Conditional Hydrographic Survey prepared by Gahagan and Bryant Associates (GBA) prior to selection of sample locations. Sample locations were based on the following criteria:

Sediment depth located shallower than minus nine (-9) and no greater than minus ten (-10) feet MLW; and

Sediment samples located in the center of the navigation channel.

In addition, a Task Hazard Analysis (THA) was prepared and reviewed by all field personnel prior to sediment sample collection. Aqua Survey, Inc (Aqua Survey) provided sampling services while Mr.

Sean Crouch of AECOM performed sediment sampling activities.

2.1 Sediment Sampling and Analysis

Aqua Survey mobilized their 24-foot pontoon R/V Schuylkill equipped with ponar sampling equipment on July 10, 2012. Aqua Survey was accompanied by AECOM for sample processing and logging.

2.1.1 Sediment Sampling Methodology

Upon review of the June 2012 Conditional Hydrographic Survey, AECOM supplied the plotted sediment sampling locations to GBA to determine the Global Positioning System (GPS) coordinates.

The coordinates (Table 1) were provided to Aqua Survey to help navigate to the sampling station.

Using GPS, Aqua Survey located each sampling station (SD-1-A through SD-1-E and SD-2-A through

SD-2-E). Upon arriving at each sampling station, Aqua Survey collected water surface elevations and top of sediment elevations with respect to MLW. A summary of this data has been provided on Table

1. Grab sediment samples were collected from each sampling station using a properly decontaminated ponar sampler. Each grab sample was then transferred to a labeled dedicated five

(5)-gallon container with a lid and transported back to landside for logging and processing. Sediments were logged in accordance with the Unified Soil Classification System (USCS) and are presented on the sample logs located in Appendix A.

Using a properly decontaminated stainless steel spoon and bowl composite samples were homogenized from the following grab samples:

SD-1: composite of SD-1-A through SD-1-E; and

SD-2: composite of SD-2-A through SD-2-E.

Using a properly decontaminated stainless steel spoon, each composite sample was transferred to laboratory supplied containers, placed on ice and shipped under chain of custody protocol to

Lancaster Laboratories, Inc. of Lancaster, Pennsylvania for analysis outlined in Table 2. It should be noted that Toxicity Characteristic Leach Procedure (TCLP) was only conducted on composite sample

SD-1 as this sample had higher reported concentrations. A blind duplicate (SD-3) was collected from composite sample SD-1 and submitted for the same analysis (Table 2) with the exception of TCLP.

AECOM 2-2

The remaining sediment from each composite sample was placed in containers and submitted to

Craig Testing, Inc. of Beltsville, Maryland for physical analysis outlined in Table 2.

Alconox® detergent solution and deionized water was used to decontaminate non-dedicated field sampling equipment.

AECOM 3-1

3.0 Sampling and Analysis Results and Discussions

The July 2012 and May 2005 analytical results from (SD-1 and SD-2) were compiled and are presented in the following sections. Chemical analytical results were compared to the following:

State of Maryland Department of the Environment (MDE) Cleanup Standards for Soil and

Groundwater, Interim Final Guidance, June 2008;

Toxicity Characteristics Leaching Procedure (TCLP) standards referenced from 40 CFR

261.24; and

Background concentrations for metals referenced in MDE Cleanup Standards for Soil and

Groundwater, Interim Final Guidance, June 2008.

The May 2005 grab sediment sample locations, which were homogenized to create composite samples SD-1 and SD-2 are depicted on Figure 3. Please refer to the July 2005 Sediment Sampling and Analysis Report for additional information.

3.1 Chemical Analytical Results.

The July 2012 analytical data were evaluated with reference to the United States Environmental

Protection Agency (USEPA) Contract Laboratory Program National Functional Guidelines for

Inorganic Data Review (October 2004) and the USEPA Contract Laboratory Program National

Functional Guidelines for Superfund Organic Methods Data Review (June 2008). The National

Functional Guidelines were modified to accommodate the non-CLP methodology. Laboratory control limits and/or method criteria were used as appropriate as the basis for validation actions. A copy of the validation report has been included as Appendix B.

A summary of the validated detected analytes from the July 2012 sampling event and the corresponding analytes from the May 2005 sampling event has been presented in Table 3. The complete laboratory report is included as Appendix C.

The data indicates that semi-volatile organic compounds, specifically polycyclic aromatic hydrocarbons (PAHs), pesticide/herbicides, metals, dioxins/furans, nitrate, ammonia, total kjeldahl

(TKN) and phosphorous were detected at SD-1 and/or SD-2. The following July 2012 analytes exceeded the MDE Cleanup Standards for Protection of Groundwater:

SD-1: Delta BHC, arsenic, barium, and chromium; and

SD-2: arsenic and chromium.

The following July 2012 analytes exceeded the MDE Residential Cleanup Standards:

SD-1: benzo(a)pyrene, arsenic, barium, chromium and iron; and

SD-2: benzo(a)pyrene, arsenic, chromium and iron.

Sediment Sampling and Analysis Report, United States Coast Guard Station Annapolis, MWH Americas, Inc., (July 2005)

AECOM 3-2

The following July 2012 analytes exceeded the MDE Non-Residential Cleanup Standards:

SD-1: benzo(a)pyrene, arsenic, and iron; and

SD-2: arsenic.

It should be noted that the metals exceedences also exceeded the corresponding naturally occurring concentrations published in the June 2008 MDE Cleanup Standards for Soil and Groundwater.

Based on a review of July 2012 analytical data for SD-1, arsenic, barium, cadmium, chromium and lead were detected; however, these analytes did not exceed the TCLP standard established in 40

CFR 261.24.

The above detected analytes reported during the July 2012 sampling event are within the general range (within one order of magnitude) of the same detected analytes reported during the May 2005 sampling event.

3.2 Geotechnical Analytical Results.

A summary of sediment physical properties for SD-1 and SD-2 collected in July 2012 are presented in

Table 4 and the laboratory report is included as Appendix D. It should be noted that these samples are composites of individual grab samples and are not characteristics of the physical properties of the channel as it extends from the shore out to 7,450 feet. As indicated on the sample logs (Appendix A), the material encountered generally grades from silt to sand as the channel approaches Chesapeake

Bay from the shore.

Based on a review of the physical data for the composite samples, the material is predominately silt

(85% to 88%) with the remaining percentages being sand. Based on the ASTM Standard D 2487-00, the material can be classified as follows:

SD-1: SILT, some well graded Sand; and

SD-2: SILT, with well graded Sand.

Moisture content ranges from 70% to 75% and specific gravity for both composite samples is 2.64.

AECOM 4-1

4.0 Dredge Spoils Disposal Options

Dredge spoils (up to 32,000 cubic yards) have been previously approved based off of the May 2005 analytical data for placement at the Maryland Port Administration’s (MPA’s) Cox Creek Containment

Facility under Permit Agreement Number 305040 dated July 9, 2012. The analytical data collected during the July 2012 sampling event does not identify any significant deviations in concentrations from the May 2005 sampling event; therefore, no additional permitting requirements are anticipated.

AECOM 5-2

5.0 Findings and Recommendations

1. Dredge spoils (up to 32,000 cubic yards) have been previously approved based off of the May

2005 analytical data for placement at the MPA Cox Creek Containment Facility. The analytical data collected during the July 2012 sampling event does not identify any significant deviations in concentrations from the May 2005 sampling event; therefore, no additional permitting requirements are anticipated.

2. Dredge material encountered generally grades from silt to sand as the channel approaches the

Chesapeake Bay from the shore.

AECOM 6-1

6.0 References

ASTM Standard D 2487-00, Standard Practice for Classification of Soils for Engineering Purposes

(Unified Soil Classification System).

Hazardous Waste Characteristics, A User Friendly Reference Document, United States

Environmental Protection Agency (USEPA), October 2009.

Maryland Department of the Environment (MDE) Cleanup Standards for Soil and Groundwater.

August 2001.

National Functional Guidelines for Inorganic Superfund Data Review, United States Environmental

Protection Agency, Contract Laboratory Program, October 2004.

National Functional Guidelines for Superfund Organic Methods Data Review, United States

Environmental Protection Agency, Contract Laboratory Program, June 2008.

Sediment Sampling and Analysis Report, United States Coast Guard Station Annapolis, MWH

Americas, Inc., (July 2005).

AECOM

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Tables

Sample ID SD-1-A SD-1-B SD-1-C SD-1-D SD-1-E SD-2-A SD-2-B SD-2-C SD-2-D SD-2-E

Northing (feet) 456981 456623 455103 454896 454568 454046 453942 453554 453635 453702

Easting (feet) 1462618 1463156 1463899 1463965 1464046 1464505 1464731 1466668 1467040 1467354

Water Column Depth (feet) 8.7 9.8 10.5 10.7 9.4 9.3 10.8 6.5 8.1 9.1

Water surface (feet MLW) 1.1 1.1 1.1 1.1 1.1 1.2 1.2 1.2 1.2 1.2

Sediment Elevation (feet MLW) -7.6 -8.7 -9.4 -9.6 -8.3 -8.1 -9.6 -5.3 -6.9 -7.9

Notes:

feet MLW - Referenced to Mean Low Water (MLW)

Horizontal Coordinate System Referenced to (NAD83) State Plane Feet, Maryland

SD-1 sediment samples and SD-2 sediment samples were composited separately

Table 1

Sediment Sample Summary

USCG Station Annapolis, Dredge Fishing Creek Channel

USCG Station Annapolis, Sediment Sampling and Analysis Report

August 2012 1 of 1

Chemical Analyte Method

PPL/TCL Volatile Organic Compounds SW-846 8260B

PPL/TCL Semivolatiles SW-846 8270C & SW-846 8270C SIM

Total Petroleum Hydrocarbons - Gasoline Range Organics SW-846 8015B

Total Petroleum Hydrocarbons - Diesel Range Organics SW-846 8015B

Pesticides/Polychlorinated Biphenyls SW-846 8081B/8082A

Metals SW-846 6010B & 6020

Mercury SW-846 7471A

Nitrate/ Nitrite Nitrogen EPA Method 300.0

Total Organic Carbon - Solids/Sludges SM20 5310B Modified

Total Kjeldahl Nitrogen EPA Method 351.2 Modified

Total Phosphorous EPA Method 365.1

Total Cyanide SW-846 9012A

17 Dioxins/Furans SW-846 8290

Herbicides SW-846 8151A

Phenols SW-846 9066

Chemical Oxygen Demand EPA Method 410.0

Total Residue SM20 2540G

Volatile Residue SM20 2540G

Ammonia Nitrogen SM20 4500 Modified

HEM Oil and Grease SW-846 9071B

Moisture SM20 2540G

TCLP Metals SW-846 6010B/7470A

TCLP Pesticides/Herbicides SW-846 8081A/8151A

TCLP Semivolatiles SW-846 8270C

TCLP Volatile Organic Compounds SW-846 8260B

Physical Analyte

Washed Gradation Analysis ASTM D422

Hydrometer Analysis ASTM D422

Specific Gravity ASTM D854

Atterberg Limits and Classification ASTM D4318

Notes:

PPL/TCL - Priority Pollutant List/ Target Compound List

TCLP - Toxicity Characteristic Leaching Procedure

Metals included: Arsenic, Barium, Cadmium, Chromium, Copper, Iron, Lead, Selenium, Silver, and Zinc

Table 2

Sediment Sample Analytical Method Summary

USCG Station Annapolis, Dredge Fishing Creek Channel

USCG Station Annapolis, Sediment Sampling and Analysis Report

August 2012

Analysis Name Units SD-1 SD-2 *SD-3 SD-1

SD-2

Date 7/10/2012 7/10/2012 7/10/2012 5/31/2005 5/31/2005

Semivolatile Organic Compounds

Acenaphthene ug/kg 6.0 2.1 J 5.1 J ND ND 470,000 6,100,000 100,000 -- --

Acenaphthylene ug/kg 16 6.8 11 61 J 31 J 470,000 6,100,000 100,000 -- --

Anthracene ug/kg 33 12 26 84 J 38 J 2,300,000 31,000,000 470,000 -- --

Benzo(a)anthracene ug/kg 71 J 29 35 J 64 J 38 J 220 3,900 480 -- --

Benzo(a)pyrene ug/kg 63 J 29 31 J 100 J 59 J 22 39 120 -- --

Benzo(b)fluoranthene ug/kg 110 J 49 65 J 150 J 69 J 220 3,900 1,500 -- --

Benzo(g,h,i)perylene ug/kg 40 J 15 17 J ND ND 230,000 3,100,000 680,000 -- --

Benzo(k)fluoranthene ug/kg 57 J 18 24 J 48 J ND 2,200 39,000 15,000 -- --

Bis(2-Ethylhexyl)phthalate ug/kg ND 16 J ND ND ND 46,000 200,000 2,900,000 -- --

Chrysene ug/kg 110 J 39 53 J 100 J 27 J 22,000 390,000 48,000 -- --

Dibenz(a,h)anthracene ug/kg 11 4.3 4.9 J 26 J ND 22 390 460 -- --

Fluoranthene ug/kg 160 J 53 90 J 140 J 66 J 310,000 4,100,000 6,300,000 -- --

Fluorene ug/kg 20 6.4 16 60 J ND 310,000 4,100,000 140,000 -- --

Indeno(1,2,3-cd)pyrene ug/kg 37 J 15 16 J ND ND 220 3,900 4,200 -- --

Naphthalene ug/kg 83 22 67 34 J ND 160,000 2,000,000 150 -- --

Phenanthrene ug/kg 78 23 55 110 J, B 48 J 2,300,000 31,000,000 470,000 -- --

Pyrene ug/kg 140 J 49 74 J 220 J 100 J 230,000 3,100,000 680,000 -- --

Pesticides/Herbicides

Pentachlorophenol ug/kg 1.8 J ND 2.7 J ND ND -- -- -- -- --

Aldrin ug/kg ND ND 3.4 J ND ND 38 170 7.7 -- --

Delta BHC ug/kg 5.0 J ND 6.0 J ND ND 490 2,200 4.3 -- --

Endosulfan Sulfate ug/kg ND ND 4.2 J ND ND 47,000 610,000 20,000 -- --

Heptachlor ug/kg 4.2 J ND 6.0 J ND ND 140 640 840 -- --

Inorganics

Arsenic mg/kg 25.0 12.7 27.4 18.4 12.9 0.43 1.9 0.026 -- 3.6

Barium mg/kg 58.2 15.4 62.2 25.5 B 11.3 J B 23 310 42 -- 28

Chromium mg/kg 185 104 188 88.6 J 67.4 23 310 42 -- 28

Copper mg/kg 59.0 13.0 59.6 33.3 8.6 310 4,100 11,000 -- 12

Iron mg/kg 91,200 51,000 102,000 NA NA 5,500 72,000 -- -- 15,000

Lead mg/kg 59.8 12.9 62.1 37.4 14.4 400 1,000 -- -- 45

Mercury mg/kg 0.117 J ND 0.112 J 0.047 B 0.034 B 2.3 31 -- -- 0.51

Selenium mg/kg 1.38 0.380 J 1.67 0.79 B 0.75 B 39 510 19 -- 2.2

Silver mg/kg 1.22 J 0.412 J 1.19 J NA NA 39 510 31 -- 0.94

Zinc mg/kg 292 81.0 302 190 90.4 2,300 31,000 14,000 -- 63

Table 3

Chemical Analytical Summary

USCG Station Annapolis, Dredge Fishing Creek Channel

Residential

Clean-up

Standard

Non-Residential Clean-up Standard

TCLP

Maryland

Background

Levels

Protection of

Groundwater

August 2012 1 of 3

SD-2

Date 7/10/2012 7/10/2012 7/10/2012 5/31/2005 5/31/2005

Table 3

Chemical Analytical Summary

USCG Station Annapolis, Dredge Fishing Creek Channel

Residential

Clean-up

Standard

Non-Residential Clean-up Standard

TCLP

Maryland

Background

Levels

Protection of

Groundwater

Dioxins/Furans

2378-TCDD ng/kg 0.652 J 0.0641 J 0.632 J ND ND -- -- -- -- --

12378-PeCDD ng/kg 3.24 J 0.317 J 3.48 JQ ND ND -- -- -- -- --

123478-HxCDD ng/kg 6.27 J 0.750 J 6.77 J ND ND -- -- -- -- --

123678-HxCDD ng/kg 13.4 J 1.56 J 13.5 J 7.6 J ND -- -- -- -- --

123789-HxCDD ng/kg 17.2 2.24 J 18.6 ND ND -- -- -- -- --

1234678-HpCDD ng/kg 476 56.9 474 200 J 66 -- -- -- -- --

OCDD ng/kg 11,400 1,600 11,600 4,400 J 1,600 -- -- -- -- --

2378-TCDF ng/kg 4.17 C 0.501 J 3.97 CQ 2.9 ND -- -- -- -- --

12378-PeCDF ng/kg 1.50 J 0.240 J 1.68 J ND ND -- -- -- -- --

23478-PeCDF ng/kg 3.60 J 0.391 J 3.52 J ND ND -- -- -- -- --

123478-HxCDF ng/kg 3.13 J 0.373 J 3.14 J ND ND -- -- -- -- --

123678-HxCDF ng/kg 2.62 J 0.348 J 2.69 J ND ND -- -- -- -- --

123789-HxCDF ng/kg 0.669 J ND 0.814 J ND ND -- -- -- -- --

234678-HxCDF ng/kg 3.39 J 0.429 J 3.44 J ND ND -- -- -- -- --

1234678-HpCDF ng/kg 36.3 4.19 35.7 18 5.2 J -- -- -- -- --

1234789-HpCDF ng/kg 2.60 J 0.328 J 2.62 J ND ND -- -- -- -- --

OCDF ng/kg 84.8 9.27 J 85.8 38 12 J -- -- -- -- --

Wet Chemistry

Moisture % 69.8 35.7 71.1 42 35 -- -- -- -- --

Total Residue % 30.2 64.3 28.9 NA NA -- -- -- -- --

Volatile Residue % 2.9 1.8 2.8 NA NA -- -- -- -- --

Nitrate Nitrogen mg/kg 3.1 J 1.8 J ND NA NA -- -- -- -- --

Ammonia Nitrogen mg/kg 179 ND 270 J 120 ND -- -- -- -- --

Total Kjeldahl Nitrogen mg/kg 5,430 J 1,110 J 3,370 J 8,500 830 JB -- -- -- -- --

Total Phosphorous mg/kg 276 J 792 1,020 J 840 470 -- -- -- -- --

Chemical Oxygen Demand mg/kg 103,000 22,600 107,000 9,700 10,000 -- -- -- -- --

TOC Solids/Sludges Combustion mg/kg 46,500 J 9,020 16,200 J NA NA -- -- -- -- --

August 2012 2 of 3

SD-2

Date 7/10/2012 7/10/2012 7/10/2012 5/31/2005 5/31/2005

Table 3

Chemical Analytical Summary

USCG Station Annapolis, Dredge Fishing Creek Channel

Residential

Clean-up

Standard

Non-Residential Clean-up Standard

TCLP

Maryland

Background

Levels

Protection of

Groundwater

TCLP

Arsenic mg/L 0.0110 J NA NA 0.0062 B 0.0053 B -- -- -- 5.0 --

Barium mg/L 0.0344 NA NA 0.04 B 0.036 B -- -- -- 100.0 --

Cadmium mg/L 0.0013 J NA NA 0.0022 B 0.0015 B -- -- -- 1.0 --

Chromium mg/L 0.0012 J NA NA NA NA -- -- -- 5.0 --

Lead mg/L 0.0154 NA NA 0.012 B 0.0051 B -- -- -- 5.0 --

Notes:

1 -SD-1 and SD- 2 are composite samples and were collected by MWH Americas, Inc. on May 31, 2005

NA - Not analyzed

TCLP - Toxicity Characteristic Leaching Procedure

TCLP standards referenced from 40 CFR 261.24

Bold face type exceeds residential standard

Italicized exceeds non-residential standard

Underlined exceeds protection of groundwater standard

* SD-3 is a duplicate sample of SD-1 mg/kg - milligram per kilogram µg/kg - microgram per kilogram ng/kg - nanogram per kilogram

ND - Not detected below reporting limit

J - estimated concentration

C - Confirmed quantitation on secondary GC column

Q - EMPC - Estimated Maximum Possible Concentration

B - Detected in method blank

Background levels for the eastern region of Maryland published in the State of Maryland Department of the Environment Cleanup Standards for Soil and Groundwater, Interim Final Guidance, June 2008

Standards published in the State of Maryland Department of the Environment Cleanup Standards for Soil and Groundwater, Interim Final Guidance, June 2008

August 2012 3 of 3

Table 4

Physical Analytical Summary

USCG Station Annapolis, Dredge Fishing Creek Channel

Analysis Name SD-1 SD-2

Date 7/10/2012 7/10/2012

% Moisture 70 75

Sieve Size (percent passing)

4" 100 100

2" 100 100

3/4" 100 100

3/8" 100 100

No. 4 100 100

No. 10 99.8 99.9

No. 50 93.6 87.8

No. 200 88.9 85.9

Hydrometer

% Sand 11.1 14.1

% Silt 88.0 84.9

% Clay 0.9 1.0

Atterberg Limits

Liquid Limits Non-Plastic Non-Plastic

Plastic Limit Non-Plastic Non-Plastic

Plasticity Index Non-Plastic Non-Plastic

Specific Gravity 2.64 2.64

August 2012 1 of 1

Appendix A

Sample Logs

Client: United States Coast Guard

Project Number: 60264667 Coring ID: SD-1-A

Site Location: Annapolis, Maryland

Coordinates: N456981, E1462618 Sheet: 1 of 1

Sample Method: Ponar

Weather: 85 F, Sunny Logged By: SC Date Started: 7/10/12 Depth of Coring (ft MLW): -8.1

Drilling Contractor: Aqua Survey Top of Sediment Elevation (ft MLW): -7.6 Date Finished: 7/10/12 Tide: High

D ep th

(f t

M L

W

MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known)

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

Checked by ___________________________________________Date:________________

Water Column

Water Surface Elevation (ft MLW): 1.1

U .S

.C .S

Sample Depth (ft

MLW)

R ec o v er y ft

L ab

S am p le

I D

Sample composited with other SD-1 series samples

Sample Type(s): Sediment

-7.6 to -8.1 SILT, gray to black, wet SD-1MH

Project Number: 60264667 Coring ID: SD-1-B

Site Location: Annapolis, Maryland

Coordinates: N456623, E1463156 Sheet: 1 of 1

Sample Method: Ponar

Weather: 85 F, Sunny Logged By: SC Date Started: 7/10/12 Depth of Coring (ft MLW): -9.2

Drilling Contractor: Aqua Survey Top of Sediment Elevation (ft MLW): -8.7 Date Finished: 7/10/12 Tide: High

D

M L

W

MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known)

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

Checked by ___________________________________________Date:________________

Water Column

-8.7 to -9.2 SILT, gray to black, wetMH SD-1

Sample composited with other SD-1 series samples

Water Surface Elevation (ft MLW): 1.1

Sample Type(s): Sediment

Sample Depth (ft

MLW)

R ec o v er y ft

U .S

.C .S

L ab

S am p le

I D

Project Number: 60264667 Coring ID: SD-1-C

Site Location: Annapolis, Maryland

Coordinates: N455103, E1463899 Sheet: 1 of 1

Sample Method: Ponar

Weather: 85 F, Sunny Logged By: SC Date Started: 7/10/12 Depth of Coring (ft MLW): -9.9

Drilling Contractor: Aqua Survey Top of Sediment Elevation (ft MLW): -9.4 Date Finished: 7/10/12 Tide: High

D

M L

W

MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known)

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

Checked by ___________________________________________Date:________________

Sample composited with other SD-1 series samples

-9.4 to -9.9 MH SILT, gray to black, wet SD-1

Water Column

Water Surface Elevation (ft MLW): 1.1

Sample Type(s): Sediment

Sample Depth (ft

MLW)

R ec o v er y ft

U .S

.C .S

L ab

S am p le

Project Number: 60264667 Coring ID: SD-1-D

Site Location: Annapolis, Maryland

Coordinates: N454896, E1463965 Sheet: 1 of 1

Sample Method: Ponar

Weather: 85 F, Sunny Logged By: SC Date Started: 7/10/12 Depth of Coring (ft MLW): -10.1

Drilling Contractor: Aqua Survey Top of Sediment Elevation (ft MLW): -9.6 Date Finished: 7/10/12 Tide: High

D

M L

W

MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known)

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

Checked by ___________________________________________Date:________________

Sample composited with other SD-1 series samples

-9.6 to -10.1 MH SILT, trace Sand, fine, gray to black, wet SD-1

Water Column

Water Surface Elevation (ft MLW): 1.1

Sample Type(s): Sediment

Sample Depth (ft

MLW)

R ec o v er y ft

U .S

.C .S

L ab

S am p le

Project Number: 60264667 Coring ID: SD-1-E

Site Location: Annapolis, Maryland

Coordinates: N454568, E1464046 Sheet: 1 of 1

Sample Method: Ponar

Weather: 85 F, Sunny Logged By: SC Date Started: 7/10/12 Depth of Coring (ft MLW): -8.8

Drilling Contractor: Aqua Survey Top of Sediment Elevation (ft MLW): -8.3 Date Finished: 7/10/12 Tide: High

D

M L

W

MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known)

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

Checked by ___________________________________________Date:________________

-8.3 to -8.8 MH SILT, trace Sand, fine, gray to black, wet SD-1

Sample composited with other SD-1 series samples

Water Column

Water Surface Elevation (ft MLW): 1.1

Sample Type(s): Sediment

Sample Depth (ft

MLW)

R ec o v er y ft

U .S

.C .S

L ab

S am p le

Project Number: 60264667 Coring ID: SD-2-A

Site Location: Annapolis, Maryland

Coordinates: N454046, E1464505 Sheet: 1 of 1

Sample Method: Ponar

Weather: 85 F, Sunny Logged By: SC Date Started: 7/10/12 Depth of Coring (ft MLW): -8.6

Drilling Contractor: Aqua Survey Top of Sediment Elevation (ft MLW): -8.1 Date Finished: 7/10/12 Tide: High

D

M L

W

MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known)

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

Checked by ___________________________________________Date:________________

Sample composited with other SD-2 series samples

-8.1 to -8.6 MH SILT with Sand, fine, gray to black, wet SD-2

Water Column

Water Surface Elevation (ft MLW): 1.2

Sample Type(s): Sediment

Sample Depth (ft

MLW)

R ec o v er y ft

U .S

.C .S

L ab

S am p le

Project Number: 60264667 Coring ID: SD-2-B

Site Location: Annapolis, Maryland

Coordinates: N453942, E1464731 Sheet: 1 of 1

Sample Method: Ponar

Weather: 85 F, Sunny Logged By: SC Date Started: 7/10/12 Depth of Coring (ft MLW): -10.1

Drilling Contractor: Aqua Survey Top of Sediment Elevation (ft MLW): -9.6 Date Finished: 7/10/12 Tide: High

D

M L

W

MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known)

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

Checked by ___________________________________________Date:________________

Sample composited with other SD-2 series samples

Water Column

-9.6 to -10.1 MH Sandy SILT, fine to medium, gray to brown, wet SD-2

Water Surface Elevation (ft MLW): 1.2

Sample Type(s): Sediment

Sample Depth (ft

MLW)

R ec o v er y ft

U .S

.C .S

L ab

S am p le

Project Number: 60264667 Coring ID: SD-2-C

Site Location: Annapolis, Maryland

Coordinates: N453554, E1466668 Sheet: 1 of 1

Sample Method: Ponar

Weather: 85 F, Sunny Logged By: SC Date Started: 7/10/12 Depth of Coring (ft MLW): -5.8

Drilling Contractor: Aqua Survey Top of Sediment Elevation (ft MLW): -5.3 Date Finished: 7/10/12 Tide: High

D

M L

W

MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known)

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

Checked by ___________________________________________Date:________________

Sample composited with other SD-2 series samples

Water Column

Silty SAND, medium, gray to brown, wet-5.3 to -5.8 SM SD-2

Water Surface Elevation (ft MLW): 1.2

Sample Type(s): Sediment

Sample Depth (ft

MLW)

R ec o v er y ft

U .S

.C .S

L ab

S am p le

Project Number: 60264667 Coring ID: SD-2-D

Site Location: Annapolis, Maryland

Coordinates: N453635, E1467040 Sheet: 1 of 1

Sample Method: Ponar

Weather: 85 F, Sunny Logged By: SC Date Started: 7/10/12 Depth of Coring (ft MLW): -7.4

Drilling Contractor: Aqua Survey Top of Sediment Elevation (ft MLW): -6.9 Date Finished: 7/10/12 Tide: High

D

M L

W

MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known)

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

Checked by ___________________________________________Date:________________

Sample composited with other SD-2 series samples

-6.9 to -7.4 SM Silty SAND, medium, gray to brown, wet SD-2

Water Column

Water Surface Elevation (ft MLW): 1.2

Sample Type(s): Sediment

Sample Depth (ft

MLW)

R ec o v er y ft

U .S

.C .S

L ab

S am p le

Project Number: 60264667 Coring ID: SD-2-E

Site Location: Annapolis, Maryland

Coordinates: N453702, E1467354 Sheet: 1 of 1

Sample Method: Ponar

Weather: 85 F, Sunny Logged By: SC Date Started: 7/10/12 Depth of Coring (ft MLW): -8.4

Drilling Contractor: Aqua Survey Top of Sediment Elevation (ft MLW): -7.9 Date Finished: 7/10/12 Tide: High

D

M L

W

MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known)

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

Checked by ___________________________________________Date:________________

Sample composited with other SD-2 series samples

-7.9 to -8.4 SW-SM SAND with Silt, medium, gray to brown, wet SD-2

Water Column

Water Surface Elevation (ft MLW): 1.2

Sample Type(s): Sediment

Sample Depth (ft

MLW)

R ec o v er y ft

U .S

.C .S

L ab

S am p le

Appendix B

Validation Report

AECOM Environment

2 Technology Park Drive, Westford, MA 01886

T 978.589.3000 F 978.589.3035 www.aecom.com

Memorandum

Date: July 31, 2012

To: Sean Crouch

From: Waverly Braunstein/Chelmsford

Subject: Data Validation

July 2012 Sampling Event

USCG – Station Annapolis

Eurofins-Lancaster Laboratory Group Number 1321300

Distribution: R.Kennedy/Chelmsford 60264467-01

USCG-Annapolis_wb.docx

SUMMARY

Limited validation was performed on the data for three composite soil samples analyzed for project-specific analyses as tabulated below. The samples were collected at the USCG station in Annapolis, Maryland on July 10, 2012 and were submitted to Eurofins-Lancaster Laboratory. (Lancaster) in

Lancaster, Pennsylvania for analysis. Lancaster processed the samples and reported the results under Group Number 1321300.

Field Sample ID Lab Sample

ID

Analyses

SD-1 Composite Soil 6716265 See Methods Table.

SD-1 Composite Soil 6716266 TCLP SVOCs, TCLP Metals

SD-1 Composite Soil 6716267 TCLP VOCs

SD-2 Composite Soil 6716268 See Methods Table.

SD-3 Composite Soil 6716271 See Methods Table.

Methods Table

Analysis Method

PPL/TCL VOCs SW-846 8260B

PPL/TCL SVOCs SW-846 8270C

SVOC-SIM SW-846 8270C SIM

TPH-GRO soil C6-C10 SW-846 8015B

Herbicides SW-846 8151A

OC Pesticides SW-846 8081B

PCBs SW-846 8082A

TPH-DRO soil C10-C28 SW-846 8015B

Dioxins/Furans SW-846 8290A

Arsenic SW-846 6010B

Analysis Method

Cadmium SW-846 6010B

Chromium SW-846 6010B

Copper SW-846 6010B

Iron SW-846 6010B

Lead SW-846 6010B

Silver SW-846 6010B

Zinc SW-846 6010B

Barium SW-846 6020

Selenium SW-846 6020

Mercury SW-846 7471A

Nitrate Nitrogen by IC (solid) EPA 300.0

Nitrite Nitrogen by IC (solid) EPA 300.0

Total Kjeldahl Nitrogen EPA 351.2 modified

Total Phosphorus as PO4-solid EPA 365.1

TOC Solids/Sludges Combustion SM20 5310 B modified

Total Cyanide (solid) SW-846 9012A

Phenols (solids) SW-846 9066

Total Phos as PO4 Prep (solid) EPA 365.1

Chemical Oxygen Demand EPA 410.1

Moisture SM20 2540 G

Total Residue SM20 2540 G

Volatile Residue SM20 2540 G

Ammonia Nitrogen SM20 4500NH3 B/C modified

HEM Oil & Grease (Solid) SW-846 9071B

The analytical data were evaluated with reference to the USEPA Contract Laboratory Program

National Functional Guidelines for Inorganic Data Review (October 2004) and the USEPA Contract

Laboratory Program National Functional Guidelines for Superfund Organic Methods Data Review

(June 2008). The National Functional Guidelines were modified to accommodate the non-CLP methodology. Laboratory control limits and/or method criteria were used as appropriate as the basis for validation actions.

Based on the results of the validation, the data appear valid as reported and may be used for decision making purposes. Two nondetect SVOC data points were rejected due to extremely low matrix spike/matrix spike duplicate recoveries. Results reported below the sample quantitation limit (SQL) were qualified as estimated (J) by the laboratory; these qualifiers were retained during validation unless superseded by other validation qualifiers. Several data points were additionally qualified during validation due to nonconformances of the quality control (QC) acceptance criteria (see discussion below). Qualifications for detected values were added to the Table 3 Chemical Analytical Summary.

REVIEW ELEMENTS

Sample data were reviewed for the following parameters where applicable to the method:

Agreement of analyses conducted with chain-of-custody (COC) requests

Holding times/sample preservation

Laboratory blanks

Surrogate spike recoveries

Matrix spike (MS)/matrix spike duplicate (MSD) results

Laboratory duplicate results

Laboratory control sample (LCS)/laboratory control sample duplicate (LCSD) results

Field duplicate results

DISCUSSION

Agreement of Analyses Conducted With COC Requests

The sample reports were checked to verify that the results corresponded to analytical requests as designated on the COC. No discrepancies were noted.

Holding Times/Sample Preservation

The cooler temperature was within the acceptance criteria of 4± 2°C, and all samples were analyzed within the method specified holding times.

Laboratory Blanks

Several target compounds were detected in the laboratory method blanks associated with the samples in this data set. The presence of blank contamination indicates that false positives may exist for these compounds in the associated samples. An action level was established at five times the concentration detected in the blank. The following table summarizes the level of blank contamination detected in the blanks, the action levels, and the associated samples.

Analyte Concentration Action Level Associated Samples

Barium (TCLP) 0.00036 J mg/L 0.0018 mg/L SD-1 Composite Soil (TCLP analyses only)

Cadmium 0.066 J mg/kg 0.33 mg/kg SD-1 Composite Soil

Copper 0.234 J mg/kg 1.17 mg/kg SD-2 Composite Soil

123678-HxCDD 0.0209 J ng/kg 0.1045 ng/kg SD-3 Composite Soil

123789-HxCDD 0.0347 J ng/kg 0.1735 ng/kg

1234678-HpCDD 0.222 J ng/kg 1.11 ng/kg

OCDD 0.46 J ng/kg 2.3 ng/kg

12378-PeCDF 0.0136 J ng/kg 0.068 ng/kg

23478-PeCDF 0.0328 J ng/kg 0.164 ng/kg

123478-HxCDF 0.0112 J ng/kg 0.056 ng/kg

123678-HxCDF 0.0135 J ng/kg 0.0675 ng/kg

123789-HxCDF 0.016 J ng/kg 0.08 ng/kg

234678-HxCDF 0.0221 J ng/kg 0.1105 ng/kg

1234678-HpCDF 0.0362 J ng/kg 0.181 ng/kg

Analyte Concentration Action Level Associated Samples

1234789-HpCDF 0.0157 J ng/kg 0.0785 ng/kg

OCDF 0.11 J ng/kg 0.55 ng/kg

All associated sample results were either non-detect, or greater than the action level. No data qualification was required on the basis of blank contamination.

Surrogate Spike Recoveries

The following table summarizes the surrogate recoveries (%Rs) that fell outside the QC acceptance criteria. Sample results were qualified as indicated below.

Analysis Sample ID Surrogate %R Acceptance

Limits

(%R)

Action

(Detects/Non-detects)

TPH-DRO SD-3 Composite Triflourotoluene 55 61-122 J/UJ

Pesticides SD-3 Composite Tetrachloro-m-xylene

(TCMX)

50 55-131 J/UJ

All other surrogate recoveries met the acceptance criteria for all analyses.

MS/MSD Results

MS/MSD analyses were performed on sample SD-1 Composite for SVOC, SVOC-SIM, Pesticides, PCB, and ammonia analyses. The following table summarizes the %Rs and relative percent differences (RPDs) of the spiked compounds that fell outside the QC acceptance criteria.

Analysis Compound MS/MSD QC Limits Action (Detects/

Nondetects) %R RPD %R RPD

SVOC Benzidine 2,4-Dinitrotoluene 4,6-Dinitro-2-methylphenol Hexachlorocyclopentadiene

0/10 16/17 ok/ok 0/0 ok ok

35-141 20-143 10-148 10-153

J/R

J/UJ

J/Accept J/R

SVOC-SIM Pyrene 46/ok ok 51-131 30 J/UJ

Pesticides g-BHC ok/ok 61 10-140 50 J/Accept

Data qualifiers (where required) were applied to the native sample only.

MS/MSD analyses were performed on sample SD-3 Composite for phenols. All %Rs and RPDs met the acceptance criteria.

The laboratory performed MS analyses on sample SD-3 Composite for total Kjeldahl nitrogen (TKN) and phosphorous analyses. All %Rs met the acceptance criteria.

MS or MS/MSD analyses for the remaining methods were performed on non-project samples, and were therefore not evaluated due to potential differences in sample matrices, etc.

Laboratory Duplicate Results

Laboratory duplicate analyses were performed on sample SD-1 Composite for the ammonia analysis, and on sample SD-3 Composite for TKN and phosphorous analyses. All RPDs met the laboratory acceptance criteria with the exception of the TKN RPD (35%) which exceeded the criterion of 20%.

TKN was detected in all samples; these results have been qualified as estimated.

LCS/LCSD Results

The %Rs of all target analytes were within the QC acceptance criteria in the LCS or LCS/LCSD analyses associated with all samples for all analytical methods with one exception. The LCS/LCSD %Rs

(54%/53%) for chloromethane fell below the acceptance range of 56-120% in the LCS/LCSD associated with samples SD-1 Composite and SD-2 Composite. The non-detect results for this compound were qualified as estimated (UJ) for this compound in these two samples.

Field Duplicate Results

Samples SD-1 Composite and SD-3 Composite were the field duplicate samples submitted with this data set. The following table summarizes the RPDs of the detected compounds. The RPDs of acenaphthene, aldrin, endosulfan sulfate, and nitrate were not calculable (NC) due to non-detected result in either the original or duplicate sample. Since the detected results for these compounds were

<5x the MDL, precision was deemed acceptable.

The remaining RPDs were compared to the QC acceptance criteria of ≤ 50% for a solid matrix when results are ≥ 5x the reporting limit. This criterion is double when results are < 5x the reporting limit.

Results that did not meet the criteria have been highlighted in bold type. These results have been qualified as estimated (J) in both the original and duplicate sample.

Analysis Name Units Method Result MDL Result MDL RPD Action

Acenaphthene ug/kg 8270C 12 11 < 12 12 NC None

Acenaphthylene ug/kg 8270C 24 11 16 12 40 None

Anthracene ug/kg 8270C 40 11 28 12 35 None

Benzo(a)anthracene ug/kg 8270C 76 11 41 12 60 J

Benzo(a)pyrene ug/kg 8270C 70 11 39 12 57 J

Benzo(b)fluoranthene ug/kg 8270C 120 11 71 12 51 J

Benzo(g,h,i)perylene ug/kg 8270C 47 11 26 12 58 None

Benzo(k)fluoranthene ug/kg 8270C 48 11 26 12 59 None

Chrysene ug/kg 8270C 110 11 55 12 67 J

Fluoranthene ug/kg 8270C 200 11 100 12 67 J

Fluorene ug/kg 8270C 25 11 18 12 33 None

Indeno(1,2,3-cd)pyrene ug/kg 8270C 46 11 23 12 67 None

Naphthalene ug/kg 8270C 87 11 78 12 11 None

Phenanthrene ug/kg 8270C 88 11 64 12 32 None

Pyrene ug/kg 8270C 160 11 90 12 56 J

Acenaphthene ug/kg 8270C SIM 6.0 2.2 5.1 2.3 16 None

Acenaphthylene ug/kg 8270C SIM 16 1.1 11 1.2 37 None

Anthracene ug/kg 8270C SIM 33 1.1 26 1.2 24 None

Benzo(a)anthracene ug/kg 8270C SIM 71 2.2 35 2.3 68 J

Benzo(a)pyrene ug/kg 8270C SIM 63 2.2 31 2.3 68 J

Analysis Name Units Method Result MDL Result MDL RPD Action

Benzo(b)fluoranthene ug/kg 8270C SIM 110 2.2 65 2.3 51 J

Benzo(g,h,i)perylene ug/kg 8270C SIM 40 2.2 17 2.3 81 J

Benzo(k)fluoranthene ug/kg 8270C SIM 57 2.2 24 2.3 81 J

Chrysene ug/kg 8270C SIM 110 1.1 53 1.2 70 J

Dibenz(a,h)anthracene ug/kg 8270C SIM 11 2.2 4.9 2.3 77 None

Fluoranthene ug/kg 8270C SIM 160 2.2 90 2.3 56 J

Fluorene ug/kg 8270C SIM 20 2.2 16 2.3 22 None

Indeno(1,2,3-cd)pyrene ug/kg 8270C SIM 37 2.2 16 2.3 79 J

Naphthalene ug/kg 8270C SIM 83 2.2 67 2.3 21 None

Phenanthrene ug/kg 8270C SIM 78 2.2 55 2.3 35 None

Pyrene ug/kg 8270C SIM 140 2.2 74 2.3 62 J

Pentachlorophenol ug/kg 8151A 1.8 1.1 2.7 1.1 40 None

Aldrin ug/kg 8081B < 1.7 1.7 3.4 J 1.8 NC None

Delta BHC ug/kg 8081B 5.0 4.5 6 4.7 18 None

Endosulfan Sulfate ug/kg 8081B < 3.3 3.3 4.2 J 3.4 NC None

Heptachlor ug/kg 8081B 4.2 1.7 6 1.8 35 None

Arsenic mg/kg 6010B 25.0 1.05 27.4 1.11 9.2 None

Chromium mg/kg 6010B 185 0.280 188 0.296 1.6 None

Copper mg/kg 6010B 59.0 0.573 59.6 0.605 1.0 None

Iron mg/kg 6010B 91,200 24.2 102,000 25.5 11 None

Lead mg/kg 6010B 59.8 1.50 62.1 1.58 3.8 None

Silver mg/kg 6010B 1.22 0.446 1.19 0.470 2.5 None

Zinc mg/kg 6010B 292 0.637 302 0.672 3.4 None

Barium mg/kg 6020 58.2 0.261 62.2 0.275 6.6 None

Selenium mg/kg 6020 1.38 0.115 1.67 0.121 19 None

Mercury mg/kg

SW-846

7471A 0.117 0.0340 0.113 0.0353 3.5 None

Nitrate Nitrogen by IC (solid) mg/kg 300 3.1 2.6 < 2.8 2.8 NC None

Total Kjeldahl Nitrogen mg/kg 351.2 5,430 796 3,370 346 47 None

Total Phosphorus as PO4-solid mg/kg 365.1 276 101 1,020 104 115 J

TOC Solids/Sludges Combustion mg/kg SM20 5310 B 46,500 2,530 16,200 4,610 97 J

Chemical Oxygen Demand mg/kg 410.1 103,000 15,900 107,000 16,600 3.8 None

Moisture % SM20 2540 G 69.8 0.50 71.1 0.50 1.8 None

Total Residue % SM20 2540 G 30.2 0.50 28.9 0.50 4.4 None

Volatile Residue % SM20 2540 G 2.9 0.50 2.8 0.50 3.5 None

Ammonia Nitrogen mg/kg

SM20

4500NH3 179 56.3 270 176 41 None

2378-TCDD ng/kg 8290A 0.652 0.175 0.632 0.216 3.1 None

12378-PeCDD ng/kg 8290A 3.24 0.224 3.48 0.329 7.1 None

123478-HxCDD ng/kg 8290A 6.27 0.205 6.77 0.301 7.7 None

123678-HxCDD ng/kg 8290A 13.4 0.228 13.5 0.306 0.7 None

123789-HxCDD ng/kg 8290A 17.2 0.212 18.6 0.292 7.8 None

1234678-HpCDD ng/kg 8290A 476 0.439 474 0.544 0.4 None

OCDD ng/kg 8290A 11400 0.191 11600 0.239 1.7 None

2378-TCDF ng/kg 8290A 4.17 0.194 3.97 0.261 4.9 None

12378-PeCDF ng/kg 8290A 1.5 0.0923 1.68 0.125 11.3 None

23478-PeCDF ng/kg 8290A 3.6 0.0831 3.52 0.118 2.2 None

123478-HxCDF ng/kg 8290A 3.13 0.0922 3.14 0.125 0.3 None

123678-HxCDF ng/kg 8290A 2.62 0.0861 2.69 0.124 2.6 None

123789-HxCDF ng/kg 8290A 0.669 0.0923 0.814 0.118 19.6 None

234678-HxCDF ng/kg 8290A 3.39 0.0856 3.44 0.131 1.5 None

Analysis Name Units Method Result MDL Result MDL RPD Action

1234678-HpCDF ng/kg 8290A 36.3 0.0632 35.7 0.0952 1.7 None

1234789-HpCDF ng/kg 8290A 2.6 0.0875 2.62 0.138 0.8 None

OCDF ng/kg 8290A 84.8 0.0831 85.8 0.127 1.2 None

Appendix C

Sediment Sample Laboratory

Results - Chemical

ANALYTICAL RESULTS

Prepared by:

Lancaster Laboratories 2425 New Holland Pike

Lancaster, PA 17605-2425

Prepared for:

AECOM Environment 8320 Guilford Rd

Suite L Columbia MD 21046

July 26, 2012

Project: USCG - Station Annapolis

Submittal Date: 07/11/2012 Group Number: 1321300 PO Number: 60264667

State of Sample Origin: MD

Client Sample Description Lancaster Labs (LLI) # SD-1 Composite Soil 6716265 SD-1 Composite Soil 6716266 SD-1 Composite Soil 6716267 SD-2 Composite Soil 6716268 SD-3 Composite Soil 6716271

The specific methodologies used in obtaining the enclosed analytical results are indicated on the Laboratory Sample Analysis Record.

ELECTRONIC

COPY TO

AECOM Environment Attn: Sean Crouch

ELECTRONIC

COPY TO

AECOM Environment Attn: Ravi Damera

Respectfully Submitted,

(717) 556-7264

LLI Sample # SW 6716265 LLI Group # 1321300 Account # 10303

Sample Description: SD-1 Composite Soil USCG - Station Annapolis

Project Name: USCG - Station Annapolis

Collected: 07/10/2012 11:30 by SC

Submitted: 07/11/2012 17:30

AECOM Environment

Reported: 07/26/2012 15:26

8320 Guilford Rd Suite L Columbia MD 21046

SD--1

Dry Method Detection Limit

Dry ResultCAS Number

Dilution Factor

CAT

No. Analysis Name ug/kgug/kgSW-846 8260BGC/MS Volatiles 10237 107-02-8 75 1.13N.D.Acrolein 10237 107-13-1 15 1.13N.D.Acrylonitrile 10237 71-43-2 2 1.13N.D.Benzene 10237 75-27-4 4 1.13N.D.Bromodichloromethane 10237 75-25-2 4 1.13N.D.Bromoform 10237 74-83-9 8 1.13N.D.Bromomethane 10237 56-23-5 4 1.13N.D.Carbon Tetrachloride 10237 108-90-7 4 1.13N.D.Chlorobenzene 10237 75-00-3 8 1.13N.D.Chloroethane 10237 67-66-3 4 1.13N.D.Chloroform 10237 74-87-3 8 1.13N.D.Chloromethane 10237 124-48-1 4 1.13N.D.Dibromochloromethane 10237 75-34-3 4 1.13N.D.1,1-Dichloroethane 10237 107-06-2 4 1.13N.D.1,2-Dichloroethane 10237 75-35-4 4 1.13N.D.1,1-Dichloroethene 10237 156-59-2 4 1.13N.D.cis-1,2-Dichloroethene 10237 156-60-5 4 1.13N.D.trans-1,2-Dichloroethene 10237 78-87-5 4 1.13N.D.1,2-Dichloropropane 10237 10061-01-5 4 1.13N.D.cis-1,3-Dichloropropene 10237 10061-02-6 4 1.13N.D.trans-1,3-Dichloropropene 10237 100-41-4 4 1.13N.D.Ethylbenzene 10237 75-09-2 8 1.13N.D.Methylene Chloride 10237 79-34-5 4 1.13N.D.1,1,2,2-Tetrachloroethane 10237 127-18-4 4 1.13N.D.Tetrachloroethene 10237 108-88-3 4 1.13N.D.Toluene 10237 71-55-6 4 1.13N.D.1,1,1-Trichloroethane 10237 79-00-5 4 1.13N.D.1,1,2-Trichloroethane 10237 79-01-6 4 1.13N.D.Trichloroethene 10237 75-69-4 8 1.13N.D.Trichlorofluoromethane 10237 75-01-4 4 1.13N.D.Vinyl Chloride 10237 1330-20-7 4 1.13N.D.Xylene (Total)

2-Chlorethyl vinyl ether is an acid labile compound and cannot be reported due to acid preservation of the samples and standards in this method.

The LCS and/or LCSD recoveries are outside the stated QC window but within the marginal exceedance allowance of +/- 4 standard deviations as defined in the NELAC Standards.