Attachment_B_-_Hazardous_Material_Survey.pdf

PDF 2 MB Posted May 29, 2026

Attached to: Anacostia II WWPS Electrical Updates
Solicitation number: 107592
Issued by: Prince George's County, Maryland

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Written by GovTribe AI · Jun 25, 2026

This is a Hazardous Materials Environmental Assessment and Resistivity Report prepared by Findling, Inc. for Shah & Associates, Inc. regarding the Anacostia II Wastewater Pumping Station Electrical Upgrade project in Capitol Heights, Maryland, under WSSC Contract No. PM0002A20 - Task 6. The assessment was conducted on August 12, 2021, to determine whether soil contamination exists in areas designated for excavation related to the replacement of two transformers and 13.8 kV and 4.16 kV switchgear. The scope of work included clearing utilities, drilling two soil borings (B-1 and B-3) to depths ranging from 20 to 25 feet, screening samples using visual, olfactory, and photoionization detector (PID) methods for volatile organic compounds, and collecting soil samples for laboratory analysis. Samples were collected in accordance with EPA protocols and delivered to Phase Separation Science, a NVLAP accredited laboratory in Catonsville, Maryland, for comprehensive analysis.

The environmental soil samples were analyzed for total petroleum hydrocarbons (gasoline and diesel range organics), volatile organic compounds, semi-volatile organic compounds, target analyte list metals, and polychlorinated biphenyls using EPA Methods 6035, 8015, 8260, 8270, 6020, and 8082. All analyses were completed within prescribed holding times with no quality control concerns identified. Field observations revealed brown sand with silt and gravel with no visible staining or odors detected, though PID readings ranged from 0.0 to 16.6 ppm. Resistivity testing conducted by Essential Corrosion Protection on samples from 3.5 to 8.0 feet depth indicated mildly corrosive soil conditions with as-is soil resistivity ranging from 14,000 to 16,000 Ohm-cm. Soil samples were retained for thirty days from the report date (September 7, 2021) for inspection purposes. The complete laboratory reports and chain of custody documentation were included in the assessment attachments.

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HAZARDOUS MATERIALS ENVIRONMENTAL ASSESSMENT &

RESISTIVITY REPORT

ANACOSTIA II WWPS ELECTRICAL UPGRADE

CAPITOL HEIGHTS, MARYLAND

Findling Project No. 20-1045-06

WSSC Contract No. PM0002A20 – Task 6

Prepared for:

SHAH & ASSOCIATES, INC.

416 North Frederick Ave

Gaithersburg, Maryland 20877

September 7, 2021 (Revised on September 28, 2021)

Findling Inc.

FINDLING, INC.

3401 Carlins Park Drive, Baltimore, MD 21215

TEL. : 410-367-1400 FAX: 410-466-6867

FINDLING, INC.

3401 Carlins Park Drive, Baltimore, Maryland 21215

TEL: 410-367-1400

FAX: 410-466-6867

info@findlinginc.com

September 7, 2021 (Revised on September 28, 2021)

Dr. Kanu Shah, Ph.D., P.E.

President Shah & Associates, Inc.

416 North Frederick Ave Gaithersburg, MD 20877

RE: Hazardous Materials Environmental Assessment & Resistivity

Anacostia II WWPS Electrical Upgrade Capitol Heights, Maryland Findling Project No. 20-1045-06 WSSC Contract No. PM0002A20 – Task 6

Dear Dr. Shah:

On August 12, 2021, Findling, Inc. performed a geotechnical investigation and environmental soil sampling for the proposed electrical upgrade including the replacement of two transformers, and 13.8 kV and 4.16 kV switchgear at Anacostia II Wastewater Pumping Station, Capitol Heights, Maryland. The work was performed in accordance with Findling’s proposal dated May 6, 2021.

We wish to advise you that we will store the soil samples obtained from the soil test borings for a period of thirty (30) days from the date of this letter, during which time they will be available for inspection. After that time the samples will be discarded unless another disposition is requested.

Thank you for providing Findling the opportunity to work with you on this project. If you have any questions, please call us.

Sincerely, FINDLING, INC.

Dipesh Tajhya M. Suri Surendra, Ph.D, P.E.

Geotechnical Engineer Chief Engineer

Hazardous Materials Environmental Assessment & Resistivity Anacostia II WWPS Electrical Upgrade Capitol Heights, Maryland

September 7, 2021 (Revised on September 28, 2021)

TABLE OF CONTENTS

1. SCOPE OF SERVICES

2. SAMPLE COLLECTION

3. FIELD OBSERVATIONS

4. SAMPLE ANALYSIS

5. SUMMARY

APPENDIX

Capitol Heights, Maryland

September 7, 2021 (Revised on September 28, 2021) Page 1 of 5

1. Scope of Services

Findling conducted environmental sampling and testing in conjunction with the geotechnical investigation. The purpose of the environmental sampling was to determine if there is any contamination in the soil that is expected to be excavated for the foundations and equipment pads that would result in site-specific health and safety or soil handling requirements during construction. In addition, soil samples were taken near the foundation level for the Resistivity test.

The scope of this work consisted of:

Clearing utilities in the work area through Miss Utility Drilling soil borings to the depth of 20 feet.

Inspecting the SPT samples from borings for signs of contamination and screening the soil for volatile organics with a photoionization detector (PID) Collecting samples for laboratory analysis based upon the inspection and screening results Analyzing the samples for contaminants of concern Preparing this environmental assessment report in conjunction with the geotechnical investigation report submitted separately

2. Sample Collection

Two borings near the transformers and switchgear, B-1 and B-3 (see Figure 1: Boring Location Plan), were advanced from the ground surface to depths ranging from 20 feet to 25 feet. The details of subsurface conditions disclosed by the borings are contained on the individual Boring Logs provided in the geotechnical report. The split spoon samples (SPT) were obtained at various intervals by driving a 1-3/8-inch ID (2-inch OD) split-spoon sampler. The samples were screened for contamination using visual and olfactory observations and for VOCs with a photoionization detector (PID). Based on the screening and the anticipated depth of excavation during construction, one soil sample from each boring was retained for laboratory analysis. The samples were collected in two 4oz wide mouth glass jars and a TerraCore Plus sample kit. The TerraCore Plus kits were used for volatiles and were used in accordance with EPA Method 5035.

All of the sample containers were provided by the analytical laboratory. The appropriate sample containers were used based upon the analytical methods described below.

The glass jars were filled as completely as possible. An approximately 5-gram sample collected with the Terra-core sampler was placed in each VOA vial of the TerraCore Plus kits. The sample containers were labeled immediately after sampling. The sample containers were placed in a cooler on ice to cool the samples to 4oC. The samples were hand-delivered to the analytical laboratory the next day after they were collected using strict chain of custody procedures.

The auger and split spoon sampler were decontaminated prior to the start of sampling and after each sample was collected. Decontamination consisted of washing the equipment with liquinox in distilled water and a distilled water rinse.

Capitol Heights, Maryland

September 7, 2021 (Revised on September 28, 2021) Page 2 of 5

In addition, soil samples were collected in each boring at the depth of 3.5 ft to 8 ft for the resistivity test. The boreholes were backfilled with excess soil cuttings. Sand brought to the site, was used to replace the soil removed by the sampling. The backfill was tamped and the surface was restored with a cold Asphalt Patch.

3. Field Observations

The soil in each sample location was brown Sand with some Silt and Gravel. The soil was not stained and no odors were detected.

The SPT samples were screened for contamination using visual and olfactory observations and for VOCs with a photoionization detector (PID). The PID reading ranged from 0.0 ppm to 16.6 ppm.

4. Sample Analysis

The environmental soil samples were analyzed by Phase Separation Science, in Catonsville, Maryland, a NVLAP accredited laboratory. The samples were analyzed for:

Total petroleum hydrocarbons, gasoline range organics (TPH-GRO) by EPA Methods 6035 and 8015 Total petroleum hydrocarbons, diesel range organics (TPH-DRO) by EPA Method 8015 Volatile organic compounds (VOCs) by EPA Methods 6035 and 8260 Semi-volatile organic compounds (S-VOCs) by EPA Method 8270 Target analyte list metals (TAL Metals) by EPA Method 6020 Polychlorinated biphenyls (PCBs) by EPA Method 8082 (Boring B-3 only)

All of the analyses were performed within the prescribed holding times for the analytical methods. No quality control concerns were identified by the lab in its report.

The analytical results are summarized in Tables 1 and 2 on the next pages. The Maryland soil cleanup standards for the non-residential/industrial exposure scenario are provided in the tables for reference. The complete laboratory report and chain of custody for environmental analysis are provided in Attachment 1 to this report.

The resistivity soil samples were analyzed by Essential Corrosion Protection, in Columbia, Maryland. The samples were analyzed for Resistivity, Redox, pH, Chloride, Sulfate, and Sulfides. The soil in the vicinity of the construction at the depth of 3.5 ft to 8.0 ft is Mildly Corrosive with As-Is Soil Resistivity ranging from 14,000 to 16,000 Ohm-cm. The complete laboratory report for resistivity is provided in Attachment 2 of this report.

Capitol Heights, Maryland

September 7, 2021 (Revised on September 28, 2021) Page 3 of 5

Table 1 - Soil Sample Analysis Results - Inorganics

Parameter Units Cleanup

Standard B-1

(3.5’-5.5’) B-3

(1.0’-5.5’)

Total Metals - EPA Method 6020 Aluminum mg/kg 110,000 15,000 13,000

Antimony mg/kg 47 <2.5 <2.2

Arsenic mg/kg 3 3.0 3.7

Barium mg/kg 22,000 72 54

Beryllium mg/kg 230 1.1 0.95

Cadmium mg/kg 98 <0.49 <0.44

Calcium mg/kg 6,800 8,000

Chromium mg/kg 28 24

Cobalt mg/kg 12 11

Copper mg/kg 4,700 25 23

Iron mg/kg 82,000 29,000 29,000

Lead mg/kg 800 9.2 8.7

Magnesium mg/kg 4,900 4,300

Manganese mg/kg 2,600 320 190

Mercury mg/kg 4.6 <0.99 <0.087

Nickel mg/kg 2,200 26 22

Potassium mg/kg 3,300 2,600

Selenium mg/kg 580 <0.49 <0.44

Silver mg/kg 580 <0.49 <0.44

Sodium mg/kg 71 51

Thallium mg/kg 1.2 <0.49 <0.44

Vanadium mg/kg 580 36 34

Zinc mg/kg 35,000 52 43

Notes

1. mg/kg - milligram per kilogram, equivalent to parts per million

2. Results with a less than sign (<) indicate that the parameter was not detected in the sample at the laboratory reporting limit (RL). The number following the < is the RL.

3. Cleanup Standard - Maryland Department of the Environment Generic Numeric Cleanup Standard for Non- Residential/Industrial Soil, October 2018.

Capitol Heights, Maryland

September 7, 2021 (Revised on September 28, 2021) Page 4 of 5

Table 2 - Soil Sample Analysis Results - Organics

Parameter Units Cleanup

Standard B-1

(3.5’-5.5’) B-3

(1.0’-5.5’)

Petroleum Hydrocarbons - Metod 8015

Diesel Range Organics mg/kg 620 11 23

Gasoline Range Organics mg/kg 620 <0.097 <0.11

Polychlorinated Biphenyls - Method 8082 all isomers mg/kg 0.94 NA <0.055

Volatile Organic Compounds - Method 8260

2-Butanone (MEK) mg/kg 19,000 0.0077 0.0074

Acetone mg/kg 67,000 0.048 0.032

Carbon Disulfide mg/kg 350 0.0045 0.0010 all other VOCs mg/kg varies None Detected

Semi-Volatile Organic Compounds - Method 8270

Acenapthene mg/kg 4,500 0.012 <0.0093

Anthracene mg/kg 23,000 0.027 <0.0093

Benzo(a)anthracene mg/kg 21 0.087 0.023

Benzo(a)pyrene mg/kg 2.1 0.110 0.026

Benzo(b)fluoranthene mg/kg 21 0.086 0.023

Benzo(g,h,i)perylene mg/kg 0.054 0.015

Benzo(k)fluoranthene mg/kg 210 0.080 0.019

Chrysene mg/kg 2,100 0.089 0.023

Dibenz(a,h)Anthracene mg/kg 2.1 0.015 <0.0093

Fluoranthene mg/kg 3,000 0.180 0.055

Fluorene mg/kg 3,000 0.012 <0.0093

Indeno(1,2,3-cd)pyrene mg/kg 21 0.061 0.015

Naphthalene mg/kg 17 0..010 <0.0093

Phenanthrene mg/kg 2,300 0.092 0.093

Pyrene mg/kg 2,300 0.170 0.053 all other S-VOCs mg/kg varies None Detected

Notes

1. mg/kg - milligram per kilogram, equivalent to parts per million

2. Results with a less than sign (<) indicate that the parameter was not detected in the sample at the laboratory reporting limit (RL). The number following the < is the RL.

3. Cleanup Standard - Maryland Department of the Environment Generic Numeric Cleanup Standard for Non-Residential/Industrial Soil, October 2018.

4. NA – Sample not analyzed for this parameter

Capitol Heights, Maryland

September 7, 2021 (Revised on September 28, 2021) Page 5 of 5

5. Summary

Findling collected soil samples from borings, B-1 and B-3 in the vicinity of Waste Water Pumping Station at Anacostia II in Capitol Heights, Maryland. The samples were tested for potential environmental contamination and resistivity.

No visible signs of contamination were observed on the site or at the sample locations. Field measurements did not detect any indication of contamination at the soil sample locations.

The environmental soil samples were analyzed by a NVLAP accredited laboratory within the prescribed holding times. No concerns about the samples or analyses were identified by the lab.

The analysis results are provided in this report. In addition, the resistivity test identified that soil on the site is Mildly Corrosive.

APPENDIX

Figure 1 - Boring Location Plan

Attachment 1 - Environmental Laboratory Test Report & Chain of Custody

Attachment 2 - Resistivity Test Results

Capitol Heights, Maryland Findling Project No. 20-1045-06 September 7, 2021 (Revised on September 28, 2021)

Figure 1 – Boring Location Plan

Results of Environmental Soil Analysis

Capitol Heights, Maryland Findling Project No. 20-1045-06

ATTACHMENT 1

ENVIRONMENTAL LABORATORY TEST REPORT AND CHAIN OF CUSTODY

PSS Project No.: 21081301

Certificate of Analysis

Anacostia WWPS II Elec Upgrade

6630 Baltimore National Pike Baltimore, MD 21228

410-747-8770 800-932-9047 www.phaseonline.com

Project Name:

Dipesh Tajhya Findling, Inc.

3401 Carlins Park Drive Baltimore, MD 21215

Reference: PSS Project No: 21081301 Project Name: Anacostia WWPS II Elec Upgrade Project Location: Capitol Heights, MD Project ID.: 20-1045-06

Dear Dipesh Tajhya:

This report includes the analytical results from the analyses performed on the samples received under the project name referenced above and identified with the Phase Separation Science (PSS) Project number(s) 21081301.

All work reported herein has been performed in accordance with current NELAP standards, referenced methodologies, PSS Standard Operating Procedures and the PSS Quality Assurance Manual unless otherwise noted in the Case Narrative Summary. PSS is limited in liability to the actual cost of the sample analysis done.

PSS reserves the right to return any unused samples, extracts or related solutions. Otherwise, the samples are scheduled for disposal, without any further notice, on September 17, 2021, with the exception of air canisters which are cleaned immediately following analysis. This includes any samples that were received with a request to be held but lacked a specific hold period. It is your responsibility to provide a written request defining a specific disposal date if additional storage is required. Upon receipt, the request will be acknowledged by PSS, thus extending the storage period.

This report shall not be reproduced except in full, without the written approval of an authorized PSS representative. A copy of this report will be retained by PSS for at least 5 years, after which time it will be disposed of without further notice, unless prior arrangements have been made.

We thank you for selecting Phase Separation Science, Inc. to serve your analytical needs. If you have any questions concerning this report, do not hesitate to contact us at 410-747-8770 or info@phaseonline.com.

Sincerely, August 23, 2021

Dan Prucnal Laboratory Manager

Page 1 of 49 Version 1.000

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com Explanation of Qualifiers

Project Name: Anacostia WWPS II Elec Upgrade

Sample ID B-1 S-2 3.5'-5.5' B-3 S-1 & S-2 1'-5.5'

08/12/21 11:58 08/12/21 11:26

Date/Time Collected PSS Sample ID 21081301-001 21081301-002

SOIL

Matrix

A target analyte or common laboratory contaminant was identified in the method blank. Its presence indicates possible field or laboratory contamination.

Results Pending Final Confirmation.

The data exceeds the upper calibration limit; therefore, the concentration is reported as estimated.

The result exceeds the regulatory level for Toxicity Characteristic (TCLP) as cited in 40 CFR 261.24 Table 1.

The target analyte was positively identified below the reporting limit but greater than the MDL.

This is the Laboratory Method Detection Limit which is equivalent to the Limit of Detection (LOD). The LOD is an estimate of the minimum amount of a substance that an analytical process can reliably detect. This value will remain constant across multiple similar instrumentation and among different analysts. An LOD is analyte and matrix specific.

Not Detected at or above the reporting limit.

PSS Reporting Limit.

Not detected.

Please reference the Chain of Custody and Sample Receipt Checklist for specific container counts and preservatives. Any sample conditions not in compliance with sample acceptance criteria are described in Case Narrative Summary.

Notes:

1. The presence of a common laboratory contaminant such as methylene chloride may be considered a possible laboratory artifact. Where observed, appropriate consideration of data should be taken.

2. Unless otherwise noted in the case narrative, results are reported on a dry weight basis with the exception of pH, flashpoint, moisture, and paint filter test.

3. Drinking water samples collected for the purpose of compliance with SDWA may not be suitable for their intended use unless collected by a certified sampler [COMAR 26.08.05.07.C.2].

4. The analyses of 1,2-dibromo-3-chloropropane (DBCP) and 1,2-dibromoethane (EDB) by EPA 524.2 and calcium, magnesium, sodium and iron by EPA 200.8 are not currently promulgated for use in testing to meet the Safe Drinking Water Act and as such cannot be used for compliance purposes. The listings of the current promulgated methods for testing in compliance with the Safe Drinking Water Act can be found in the 40 CFR part 141.1, for the primary drinking water contaminates, and part 141.3, for the secondary drinking water contaminates.

5. Sample prepared under EPA 3550C with concentrations greater than 20 mg/Kg should employ the microtip extraction procedure if required to meet data quality objectives.

6. The analysis of acrolein by EPA 624 must be analyzed within three days of sampling unless pH is adjusted to 4-5 units [40 CFR part 136.3(e)].

7. Method 180.1, The Determination of Turbidity by Nephelometry, recommends samples over 40 NTU be diluted until the turbidity falls below 40 units. Routine samples over 40 NTU may not be diluted as long as the data quality objectives are not affected.

8. Alkalinity results analyzed by EPA 310.2 that are reported by dilution are estimated and are not in compliance with method requirements.

Project ID: 20-1045-06

The following samples were received under chain of custody by Phase Separation Science (PSS) on 08/13/2021 at 10:55 am

Certifications:

NELAP Certifications: PA 68-03330, VA 460156 State Certifications: MD 179, WV 303 Regulated Soil Permit: P330-12-00268 NSWC USCG Accepted Laboratory

LDBE MWAA LD1997-0041-2015

C E Fail J

MDL

Standard Flags/Abbreviations:

Page 2 of 49 Version 1.000

Project Name: Anacostia WWPS II Elec Upgrade

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com Certificate of Analysis

08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:58Date/Time Sampled: 21081301-001PSS Sample ID:

SOILMatrix:

B-1 S-2 3.5'-5.5'Sample ID:

TAL Metals

Total Petroleum Hydrocarbons - DRO

Analytical Method:

08/17/21 14:10

08/16/21 18:14

08/19/21 13:28

08/16/21 18:14

08/19/21 13:28

08/16/21 18:14

08/17/21 14:10

08/16/21 18:14

08/17/21 18:18

SW3050B

SW3550C

Preparation Method:

08/16/21

08/17/21

Aluminum

Antimony

Arsenic

Barium

Beryllium

Cadmium

Calcium

Chromium

Cobalt

Copper

Iron

Lead

Magnesium

Manganese

Mercury

Nickel

Potassium

Selenium

Silver

Sodium

Thallium

Vanadium

Zinc

TPH-DRO (Diesel Range Organics)

Result

2.5

0.49

0.099

0.49

9.9

3.8

Flag

Flag mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

Units

15,000

3.0 1.1

6,800

29,000 9.2

4,900

3,300

SW-846 6020 B

SW-846 8015C DRO

Analyst

Prepared

Analyzed

Dil

o-Terphenyl 71 35-124 08/17/21 18:18

Recovery Limits

Surrogate(s)

10701 08/17/21

Qualifier(s): See Batch 186848 on Case Narrative.

Page 3 of 49 Version 1.000

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com Certificate of Analysis

08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:58Date/Time Sampled: 21081301-001PSS Sample ID:

SOILMatrix:

B-1 S-2 3.5'-5.5'Sample ID:

Total Petroleum Hydrocarbons-GRO

TCL Volatile Organic Compounds

Analytical Method:

08/18/21 16:11

08/18/21 17:10

SW5035A

Preparation Method:

08/18/21

TPH-GRO (Gasoline Range Organics)

Acetone

Benzene

Bromochloromethane

Bromodichloromethane

Bromoform

Bromomethane

2-Butanone (MEK)

Carbon Disulfide

Carbon tetrachloride

Chlorobenzene

Chloroethane

Chloroform

Chloromethane

Cyclohexane

1,2-Dibromo-3-chloropropane

Dibromochloromethane

1,2-Dibromoethane

1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dichlorobenzene

Dichlorodifluoromethane

1,1-Dichloroethane

1,2-Dichloroethane

1,1-Dichloroethene cis-1,2-Dichloroethene

1,2-Dichloropropane cis-1,3-Dichloropropene

0.097

0.019

0.00096

0.0048

0.00096

0.0048

0.00096

Flag

Flag mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

Units

0.048

0.0077 0.0045

SW-846 8015C GRO

SW-846 8260 D

Analyst

Prepared

a,a,a-Trifluorotoluene 98 62-125 08/18/21 16:11

Recovery Limits

Surrogate(s)

10451 08/18/21

Qualifier(s): See Batch 186887 on Case Narrative.

Page 4 of 49 Version 1.000

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com Certificate of Analysis

08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:58Date/Time Sampled: 21081301-001PSS Sample ID:

SOILMatrix:

B-1 S-2 3.5'-5.5'Sample ID:

TCL Volatile Organic Compounds Analytical Method:

08/18/21 17:10

SW5035APreparation Method:

08/18/21

08/18/21 trans-1,2-Dichloroethene trans-1,3-Dichloropropene

Ethylbenzene

2-Hexanone (MBK)

Isopropylbenzene

Methyl Acetate

Methylcyclohexane

Methylene chloride

4-Methyl-2-Pentanone (MIBK)

Methyl-t-Butyl Ether

Naphthalene

Styrene

1,1,2,2-Tetrachloroethane

Tetrachloroethene

Toluene

1,2,3-Trichlorobenzene

1,2,4-Trichlorobenzene

1,1,1-Trichloroethane

1,1,2-Trichloroethane

Trichloroethene

Trichlorofluoromethane

1,1,2-Trichlorotrifluoroethane

Vinyl chloride m&p-Xylene o-Xylene

0.00096

0.024

0.00096

0.0048

0.00096

0.0048

0.0019

0.00096

Flag mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

Units

SW-846 8260 D

AnalystPrepared Analyzed

DilRL

4-Bromofluorobenzene

Dibromofluoromethane

Toluene-D8

92-120

91-107

89-108

08/18/21 17:10

Recovery Limits

Surrogate(s)

08/18/21

Page 5 of 49 Version 1.000

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com Certificate of Analysis

08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:58Date/Time Sampled: 21081301-001PSS Sample ID:

SOILMatrix:

B-1 S-2 3.5'-5.5'Sample ID:

TCL Semivolatile Organic Compounds Analytical Method:

08/23/21 12:11

SW3550CPreparation Method:

08/17/21

Acenaphthene

Acenaphthylene

Acetophenone

Anthracene

Atrazine

Benzo(a)anthracene

Benzo(a)pyrene

Benzo(b)fluoranthene

Benzo(g,h,i)perylene

Benzo(k)fluoranthene

Biphenyl (Diphenyl)

Butyl benzyl phthalate bis(2-chloroethoxy) methane bis(2-chloroethyl) ether bis(2-chloroisopropyl) ether bis(2-ethylhexyl) phthalate

4-Bromophenylphenyl ether

Di-n-butyl phthalate

Carbazole

Caprolactam

4-Chloro-3-methyl phenol

4-Chloroaniline

2-Chloronaphthalene

2-Chlorophenol

4-Chlorophenyl Phenyl ether

Chrysene

Dibenz(a,h)Anthracene

Dibenzofuran

3,3-Dichlorobenzidine

2,4-Dichlorophenol

Diethyl phthalate

Dimethyl phthalate

2,4-Dimethylphenol

4,6-Dinitro-2-methyl phenol

2,4-Dinitrophenol

0.0094

0.038

0.0094

0.075

0.0094

0.038

0.075

0.038

0.0094

0.038

0.19

Flag mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

Units

0.012

0.027

0.087 0.11

0.086 0.054 0.080

0.089 0.015

SW-846 8270 E

Qualifier(s): See Batch 186965 on Case Narrative.

Page 6 of 49 Version 1.000

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com Certificate of Analysis

08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:58Date/Time Sampled: 21081301-001PSS Sample ID:

SOILMatrix:

B-1 S-2 3.5'-5.5'Sample ID:

TCL Semivolatile Organic Compounds Analytical Method:

08/23/21 12:11

SW3550CPreparation Method:

08/17/21

2,4-Dinitrotoluene

2,6-Dinitrotoluene

Fluoranthene

Fluorene

Hexachlorobenzene

Hexachlorobutadiene

Hexachlorocyclopentadiene

Hexachloroethane

Indeno(1,2,3-c,d)Pyrene

Isophorone

2-Methylnaphthalene

2-Methyl phenol

3&4-Methylphenol

Naphthalene

2-Nitroaniline

3-Nitroaniline

4-Nitroaniline

Nitrobenzene

2-Nitrophenol

4-Nitrophenol

N-Nitrosodi-n-propyl amine

N-Nitrosodiphenylamine

Di-n-octyl phthalate

Pentachlorophenol

Phenanthrene

Phenol

Pyrene

Pyridine

2,4,5-Trichlorophenol

2,4,6-Trichlorophenol

0.075

0.0094

0.038

0.075

0.038

0.0094

0.038

0.0094

0.038

0.0094

0.075

0.038

0.19

0.038

0.075

0.0094

0.038

0.0094

0.038

Flag mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

Units

0.18 0.012

0.061

0.010

0.092

0.17

SW-846 8270 E

Page 7 of 49 Version 1.000

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com Certificate of Analysis

08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:58Date/Time Sampled: 21081301-001PSS Sample ID:

SOILMatrix:

B-1 S-2 3.5'-5.5'Sample ID:

TCL Semivolatile Organic Compounds Analytical Method: SW3550CPreparation Method: SW-846 8270 E

2-Fluorobiphenyl

2-Fluorophenol

Nitrobenzene-d5

Phenol-d6

Terphenyl-D14

2,4,6-Tribromophenol

50-104

40-109

41-101

44-102

70-115

36-123

08/23/21 12:11

Recovery Limits

Surrogate(s)

08/17/21

Page 8 of 49 Version 1.000

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com Certificate of Analysis

08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:26Date/Time Sampled: 21081301-002PSS Sample ID:

SOILMatrix:

B-3 S-1 & S-2 1'-5.5'Sample ID:

TAL Metals

Total Petroleum Hydrocarbons - DRO

Analytical Method:

08/17/21 14:14

08/16/21 18:32

08/19/21 13:33

08/16/21 18:32

08/19/21 13:33

08/16/21 18:32

08/17/21 14:14

08/16/21 18:32

08/17/21 19:08

SW3050B

SW3550C

Preparation Method:

08/16/21

08/17/21

Aluminum

Antimony

Arsenic

Barium

Beryllium

Cadmium

Calcium

Chromium

Cobalt

Copper

Iron

Lead

Magnesium

Manganese

Mercury

Nickel

Potassium

Selenium

Silver

Sodium

Thallium

Vanadium

Zinc

TPH-DRO (Diesel Range Organics)

2.2

0.44

0.087

0.44

8.7

3.8

Flag

Flag mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

Units

13,000

3.7

0.95

8,000

29,000 8.7

4,300

2,600

SW-846 6020 B

SW-846 8015C DRO

Analyst

Prepared

DF/HF- Diesel fuel and heavier fuel oil patterns observed in samples.

Dil

o-Terphenyl 91 35-124 08/17/21 19:08

Recovery Limits

Surrogate(s)

10701 08/17/21

Page 9 of 49 Version 1.000

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com Certificate of Analysis

08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:26Date/Time Sampled: 21081301-002PSS Sample ID:

SOILMatrix:

B-3 S-1 & S-2 1'-5.5'Sample ID:

Total Petroleum Hydrocarbons-GRO

Polychlorinated Biphenyls

TCL Volatile Organic Compounds

Analytical Method:

08/18/21 16:42

08/16/21 14:08

08/18/21 17:32

SW5035A

SW3550C

SW5035A

Preparation Method:

08/18/21

08/13/21

08/18/21

TPH-GRO (Gasoline Range Organics)

PCB-1016

PCB-1221

PCB-1232

PCB-1242

PCB-1248

PCB-1254

PCB-1260

Acetone

Benzene

Bromochloromethane

Bromodichloromethane

Bromoform

Bromomethane

2-Butanone (MEK)

Carbon Disulfide

Carbon tetrachloride

Chlorobenzene

Chloroethane

Chloroform

Result

0.11

0.055

0.021

0.0010

0.0051

0.0010

0.0051

Flag

Flag mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

Units

0.032

0.0074 0.0010

SW-846 8015C GRO

SW-846 8082 A

SW-846 8260 D

Analyst

Prepared

Analyzed

Clean up Method: SW846 3665A

Dil

a,a,a-Trifluorotoluene

Tetrachloro-m-xylene

Decachlorobiphenyl

62-125

34-117

40-149

08/18/21 16:42

08/16/21 14:08

Recovery

Limits

Surrogate(s)

08/18/21

08/13/21

Page 10 of 49 Version 1.000

6630 Baltimore National Pike Baltimore, MD 21228

410-747-8770 800-932-9047 www.phaseonline.com Certificate of Analysis

08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:26Date/Time Sampled: 21081301-002PSS Sample ID:

SOILMatrix:

B-3 S-1 & S-2 1'-5.5'Sample ID:

TCL Volatile Organic Compounds Analytical Method:

08/18/21 17:32

SW5035APreparation Method:

08/18/21

Chloromethane

Cyclohexane

1,2-Dibromo-3-chloropropane

Dibromochloromethane

1,2-Dibromoethane

1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dichlorobenzene

Dichlorodifluoromethane

1,1-Dichloroethane

1,2-Dichloroethane

1,1-Dichloroethene

1,2-Dichloropropane cis-1,2-Dichloroethene cis-1,3-Dichloropropene trans-1,2-Dichloroethene trans-1,3-Dichloropropene

Ethylbenzene

2-Hexanone (MBK)

Isopropylbenzene

Methyl Acetate

Methylcyclohexane

Methylene chloride

4-Methyl-2-Pentanone (MIBK)

Methyl-t-Butyl Ether

Naphthalene

Styrene

1,1,2,2-Tetrachloroethane

Tetrachloroethene

Toluene

1,2,3-Trichlorobenzene

1,2,4-Trichlorobenzene

1,1,1-Trichloroethane

1,1,2-Trichloroethane

Trichloroethene

Result

0.0010

0.026

0.0010

0.0051

0.0010

Units

SW-846 8260 D

AnalystPrepared AnalyzedDilRL

Page 11 of 49 Version 1.000

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08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:26Date/Time Sampled: 21081301-002PSS Sample ID:

SOILMatrix:

B-3 S-1 & S-2 1'-5.5'Sample ID:

TCL Volatile Organic Compounds

TCL Semivolatile Organic Compounds

Analytical Method:

08/18/21 17:32

08/19/21 18:54

SW5035A

SW3550C

Preparation Method:

08/18/21

08/17/21

Trichlorofluoromethane

1,1,2-Trichlorotrifluoroethane

Vinyl chloride m&p-Xylene o-Xylene

Acenaphthene

Acenaphthylene

Acetophenone

Anthracene

Atrazine

Benzo(a)anthracene

Benzo(a)pyrene

Benzo(b)fluoranthene

Benzo(g,h,i)perylene

Benzo(k)fluoranthene

Biphenyl (Diphenyl)

Butyl benzyl phthalate bis(2-chloroethoxy) methane bis(2-chloroethyl) ether bis(2-chloroisopropyl) ether bis(2-ethylhexyl) phthalate

4-Bromophenylphenyl ether

Di-n-butyl phthalate

Carbazole

Caprolactam

4-Chloro-3-methyl phenol

Result

0.0010

0.0051

0.0021

0.0010

0.0093

0.037

0.0093

0.075

0.0093

0.037

0.075

0.037

Flag

Flag mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

Units

0.023 0.026 0.023 0.015 0.019

SW-846 8260 D

SW-846 8270 E

Analyst

Prepared

Analyzed

Dil

4-Bromofluorobenzene

Dibromofluoromethane

Toluene-D8

92-120

91-107

89-108

08/18/21 17:32

Recovery Limits

Surrogate(s)

08/18/21

Qualifier(s): See Batch 186887 on Case Narrative.

Qualifier(s): See Batch 186922 on Case Narrative.

Page 12 of 49 Version 1.000

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com Certificate of Analysis

08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:26Date/Time Sampled: 21081301-002PSS Sample ID:

SOILMatrix:

B-3 S-1 & S-2 1'-5.5'Sample ID:

TCL Semivolatile Organic Compounds Analytical Method:

08/19/21 18:54

SW3550CPreparation Method:

08/17/21

4-Chloroaniline

2-Chloronaphthalene

2-Chlorophenol

4-Chlorophenyl Phenyl ether

Chrysene

Dibenz(a,h)Anthracene

Dibenzofuran

3,3-Dichlorobenzidine

2,4-Dichlorophenol

Diethyl phthalate

Dimethyl phthalate

2,4-Dimethylphenol

4,6-Dinitro-2-methyl phenol

2,4-Dinitrophenol

2,4-Dinitrotoluene

2,6-Dinitrotoluene

Fluoranthene

Fluorene

Hexachlorobenzene

Hexachlorobutadiene

Hexachlorocyclopentadiene

Hexachloroethane

Indeno(1,2,3-c,d)Pyrene

Isophorone

2-Methylnaphthalene

2-Methyl phenol

3&4-Methylphenol

Naphthalene

2-Nitroaniline

3-Nitroaniline

4-Nitroaniline

Nitrobenzene

2-Nitrophenol

4-Nitrophenol

N-Nitrosodi-n-propyl amine

0.037

0.0093

0.037

0.19

0.075

0.0093

0.037

0.075

0.037

0.0093

0.037

0.0093

0.037

0.0093

0.075

0.037

0.19

0.037

Units

0.023

0.055

0.015

SW-846 8270 E

Page 13 of 49 Version 1.000

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com Certificate of Analysis

08/13/2021 10:55 89.3Date/Time Received: % Solids SM2540G-11:

08/12/2021 11:26Date/Time Sampled: 21081301-002PSS Sample ID:

SOILMatrix:

B-3 S-1 & S-2 1'-5.5'Sample ID:

TCL Semivolatile Organic Compounds Analytical Method:

08/19/21 18:54

SW3550CPreparation Method:

08/17/21

N-Nitrosodiphenylamine

Di-n-octyl phthalate

Pentachlorophenol

Phenanthrene

Phenol

Pyrene

Pyridine

2,4,5-Trichlorophenol

2,4,6-Trichlorophenol

0.075

0.0093

0.037

0.0093

0.037

Flag mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

Units

0.0093

0.053

SW-846 8270 E

2-Fluorobiphenyl

2-Fluorophenol

Nitrobenzene-d5

Phenol-d6

Terphenyl-D14

2,4,6-Tribromophenol

50-104

40-109

41-101

44-102

70-115

36-123

08/19/21 18:54

Recovery Limits

Surrogate(s)

08/17/21

Page 14 of 49 Version 1.000

Case Narrative

PSS Project No.: 21081301

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com

All sample receipt conditions were acceptable.

Sample Receipt:

Analytical:

Method exceedance: The continuing calibration verification (CCV-R1) had a surrogate recovery outside the control limits of 80-120% at 74%.

Continuing calibration verification standard (CCV) meets method criteria in that more than 80% of analytes are within acceptance limits. Exceedances are identified in QC summary.

Method exceedance: Laboratory control sample/laboratory control sample duplicate (LCS/LCSD) exceedances identified; see QC summary.

Continuing calibration verification standard (CCV) meets method criteria in that more than 80% of analytes are within acceptance limits. Exceedances are identified in QC summary.

Method exceedance: Benzo-b-fluoranthene and benzo-k-fluoranthene do not meet resolution criteria.

Continuing calibration verification standard (CCV) meets method criteria in that more than 80% of analytes are within acceptance limits. Exceedances are identified in QC summary.

Method exceedance: Benzo-b-fluoranthene and benzo-k-fluoranthene do not meet resolution criteria.

Total Petroleum Hydrocarbons - DRO

TCL Volatile Organic Compounds

TCL Semivolatile Organic Compounds

NELAP accreditation was held for all analyses performed unless noted below. See www.phaseonline.com for complete PSS scope of accreditation.

Any holding time exceedances, deviations from the method specifications, regulatory requirements or variations to the procedures outlined in the PSS Quality Assurance Manual are outlined below.

Batch: 186848

Batch: 186887

Batch: 186922

Batch: 186965

Matrix spike and matrix spike duplicate analyses may not be performed due to insufficient sample quantity. In these instances, a laboratory control sample and laboratory control sample duplicate are analyzed unless otherwise noted or specified in the method.

Page 15 of 49 Version 1.000

Anacostia WWPS II Elec Upgrade

Project Name:

Lab Chronology

6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com

SM2540G

SW-846 6020 B

SW-846 8015C DRO

SW-846 8015C GRO

SW-846 8082 A

SW-846 8260 D

SW-846 8270 E

Method

B-1 S-2 3.5'-5.5' B-3 S-1 & S-2 1'-5.5'

186755-1-BLK

SB-12 (4-5') D

Stock 1 D

B-1 S-2 3.5'-5.5' B-3 S-1 & S-2 1'-5.5'

87301-1-BKS

87301-1-BLK

SB-31 (4-5') S

SB-31 (4-5') SD

B-1 S-2 3.5'-5.5' B-3 S-1 & S-2 1'-5.5' B-1 S-2 3.5'-5.5' B-3 S-1 & S-2 1'-5.5'

B-3 S-1 & S-2 1'-5.5'

87316-1-BKS

87316-1-BLK

87316-1-BSD

B-1 S-2 3.5'-5.5' S-1 S

S-1 SD

B-1 S-2 3.5'-5.5' B-3 S-1 & S-2 1'-5.5'

87345-2-BKS

87345-2-BLK

87345-2-BSD

S-1 S

S-1 SD

87276-1-BKS

87276-1-BLK

87276-1-BSD

Soil Pile #1 S Soil Pile #1 SD B-3 S-1 & S-2 1'-5.5'

B-1 S-2 3.5'-5.5' B-3 S-1 & S-2 1'-5.5'

87346-1-BKS

87346-1-BLK

87346-1-BSD

SB-13 (7-8') S

SB-13 (7-8') SD

87315-1-BKS

Client Sample ID

21081301-001 21081301-002

186755-1-BLK

21081122-016 D 21081302-001 D

21081301-001 21081301-002

87301-1-BKS

87301-1-BLK

21081122-001 S 21081122-001 S 21081301-001 21081301-002 21081301-001 21081301-002

21081301-002

87316-1-BKS

87316-1-BLK

87316-1-BSD

21081301-001 21081303-001 S 21081303-001 S

21081301-001 21081301-002

87345-2-BKS

87345-2-BLK

87345-2-BSD

21081303-001 S 21081303-001 S

87276-1-BKS

87276-1-BLK

87276-1-BSD

21081224-001 S 21081224-001 S 21081301-002

21081301-001 21081301-002

87346-1-BKS

87346-1-BLK

87346-1-BSD

21081122-011 S 21081122-011 S

87315-1-BKS

PSS Sample ID

S S S S S

S S S S S S S S S S

S S S S S S S

S S S S S S

S S S S S S S

Mtx

186755 186755 186755 186755 186755

87301 87301 87301 87301 87301 87301 87301 87301 87301 87301

87316 87316 87316 87316 87316 87316 87316

87345 87345 87345 87345 87345 87345 87345

87276 87276 87276 87276 87276 87276

87346 87346 87346 87346 87346 87346 87346

87315

Prep Batch

186755 186755 186755 186755 186755

186831 186831 186831 186831 186831 186831 186864 186864 186919 186919

186847 186847 186847 186847 186848 186848 186848

186885 186885 186885 186885 186885 186885 186885

186780 186780 186780 186780 186780 186818

186887 186887 186887 186887 186887 186887 186887

186888

Analytical Batch

08/13/2021 12:20 08/13/2021 12:20 08/13/2021 12:20 08/13/2021 12:20 08/13/2021 12:20

08/16/2021 10:35 08/16/2021 10:35 08/16/2021 10:35 08/16/2021 10:35 08/16/2021 10:35 08/16/2021 10:35 08/16/2021 10:35 08/16/2021 10:35 08/16/2021 10:35 08/16/2021 10:35

08/17/2021 09:31 08/17/2021 09:31 08/17/2021 09:31 08/17/2021 09:31 08/17/2021 09:31 08/17/2021 09:31 08/17/2021 09:31

08/18/2021 10:39 08/18/2021 10:39 08/18/2021 10:39 08/18/2021 10:39 08/18/2021 10:39 08/18/2021 10:39 08/18/2021 10:39

08/13/2021 08:58 08/13/2021 08:58 08/13/2021 08:58 08/13/2021 08:58 08/13/2021 08:58 08/13/2021 13:21

08/18/2021 09:25 08/18/2021 09:25 08/18/2021 09:25 08/18/2021 09:25 08/18/2021 09:25 08/18/2021 09:25 08/18/2021 09:25

08/17/2021 09:02

Prepared

08/13/2021 12:20 08/13/2021 12:20 08/13/2021 12:20 08/13/2021 12:20 08/13/2021 12:20

08/16/2021 18:14 08/16/2021 18:32 08/16/2021 16:11 08/16/2021 16:06 08/16/2021 16:33 08/16/2021 16:38 08/17/2021 14:10 08/17/2021 14:14 08/19/2021 13:28 08/19/2021 13:33

08/17/2021 19:08 08/17/2021 15:25 08/17/2021 15:00 08/17/2021 15:50 08/17/2021 18:18 08/17/2021 15:50 08/17/2021 16:14

08/18/2021 16:11 08/18/2021 16:42 08/18/2021 11:09 08/18/2021 13:10 08/18/2021 11:39 08/18/2021 12:10 08/18/2021 12:40

08/13/2021 13:10 08/13/2021 12:41 08/13/2021 13:38 08/13/2021 14:06 08/13/2021 14:34 08/16/2021 14:08

08/18/2021 17:10 08/18/2021 17:32 08/18/2021 09:47 08/18/2021 12:22 08/18/2021 10:09 08/18/2021 10:32 08/18/2021 10:54

08/18/2021 14:56

Analyzed

Initial Initial

BLK

Initial Initial

BKS

BLK

MSD

Reanalysis Reanalysis Reanalysis Reanalysis

Initial

BKS

BLK

BSD

Initial

MSD

Initial Initial

BKS

BLK

BSD

MSD

BKS

BLK

BSD

MSD

Initial

Initial Initial

BKS

BLK

BSD

MSD

BKS

Analysis Type

Page 16 of 49 Version 1.000

Project Name:

Lab Chronology

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SW-846 8270 E

Method

87315-1-BLK

87315-1-BSD

B6S3 S

B6S3 SD

B-3 S-1 & S-2 1'-5.5' B-1 S-2 3.5'-5.5'

Client Sample ID

87315-1-BLK

87315-1-BSD

21081123-009 S 21081123-009 S 21081301-002 21081301-001

PSS Sample ID

S S S S S S

Mtx

87315 87315 87315 87315 87315 87315

Prep Batch

186888 186888 186888 186888 186922 186965

Analytical Batch

08/17/2021 09:02 08/17/2021 09:02 08/17/2021 09:02 08/17/2021 09:02 08/17/2021 09:02 08/17/2021 09:02

Prepared

08/18/2021 14:29 08/18/2021 15:23 08/18/2021 15:50 08/18/2021 16:17 08/19/2021 18:54 08/23/2021 12:11

Analyzed

BLK

BSD

MSD

Initial Initial

Analysis Type

Page 17 of 49 Version 1.000

Project Name

QC Summary 6630 Baltimore National Pike Baltimore, MD 21228

410-747-8770 800-932-9047 www.phaseonline.com

87301-1-BLK

87276-1-BLK

MB Sample Id:

Solid

Matrix:

SW-846 6020 B

SW-846 8082 A

Analytical Method:

SW3050B

SW3550C

Prep Method:

08/16/21

08/13/21

Date Prep:

Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Cobalt Copper Iron Lead Magnesium Manganese Mercury Nickel Potassium Selenium Silver Sodium Thallium Vanadium Zinc

PCB-1016

PCB-1260

Parameter

Parameter %RPD

Flag

RPD

Limit

186831

186780

Seq Number:

Limits

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

67-104 57-119

LCSD

%Rec

LCSD

Result 0.4011 0.4919

LCS

%Rec

LCS

%Rec

89.18 16.46 16.02 16.60 18.19 17.14 170.4 17.66 17.87 18.31 173.9 18.26 184.6 17.32

0.4503 18.08 176.9 16.81 17.89 185.6 16.92 17.69 83.41

0.4070 0.4954

Spike Amount

89.87 17.97 17.97 17.97 17.97 17.97 179.7 17.97 17.97 17.97 179.7 17.97 179.7 17.97

0.4494 17.97 179.7 17.97 17.97 179.7 17.97 17.97 89.87

0.4912 0.4912

Result

<44.94 <2.247

<0.4494 <0.4494 <0.4494 <0.4494 <44.94

<0.4494 <0.4494 <0.4494 <44.94

<0.4494 <44.94

<0.4494 <0.08987 <0.4494 <44.94

<0.4494 <0.4494 <44.94

<0.4494 <0.4494 <8.987

<0.04912 <0.04912

87301-1-BKS

87276-1-BKS

LCS Sample Id:

LCS Sample Id: 87276-1-BSDLCSD Sample Id:

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

Units

LCS

Result

LCS

Result

Decachlorobiphenyl Tetrachloro-m-xylene

Surrogate LCSD Flag

Limits

40-149 34-117

LCSD

Result

LCS

Result

%Rec

UnitsLCS Flag

Flag

Page 18 of 49 Version 1.000

Project Name

QC Summary 6630 Baltimore National Pike Baltimore, MD 21228

410-747-8770 800-932-9047 www.phaseonline.com

87316-1-BLKMB Sample Id:

SolidMatrix:

SW-846 8015C DROAnalytical Method: SW3550CPrep Method:

08/17/21Date Prep:

TPH-DRO (Diesel Range Organics)

Parameter %RPD Flag

RPD

Limit

186847Seq Number:

Limits

56-118

LCSD

%Rec

LCSD

Result

34.66

LCS

%Rec

10735.70

Spike Amount

33.31

Result <3.331

87316-1-BKSLCS Sample Id: 87316-1-BSDLCSD Sample Id:

mg/kg

UnitsLCS Result o-Terphenyl

Surrogate LCSD Flag

Limits

35-124

LCSD

Result

LCS

Result

%Rec

94 %

UnitsLCS Flag

Page 19 of 49 Version 1.000

Project Name

QC Summary 6630 Baltimore National Pike Baltimore, MD 21228 410-747-8770 800-932-9047 www.phaseonline.com

87315-1-BLKMB Sample Id:

SolidMatrix:

SW-846 8270 EAnalytical Method: SW3550CPrep Method:

08/17/21Date Prep:

Acenaphthene Acenaphthylene Acetophenone Anthracene Atrazine Benzo(a)anthracene Benzo(a)pyrene Benzo(b)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl (Diphenyl) Butyl benzyl phthalate bis(2-chloroethoxy) methane bis(2-chloroethyl) ether bis(2-chloroisopropyl) ether bis(2-ethylhexyl) phthalate 4-Bromophenylphenyl ether Di-n-butyl phthalate Carbazole Caprolactam 4-Chloro-3-methyl phenol 4-Chloroaniline 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenyl Phenyl ether Chrysene Dibenz(a,h)Anthracene Dibenzofuran 3,3-Dichlorobenzidine 2,4-Dichlorophenol Diethyl phthalate Dimethyl phthalate 2,4-Dimethylphenol 4,6-Dinitro-2-methyl phenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene Fluoranthene Fluorene Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Indeno(1,2,3-c,d)Pyrene Isophorone 2-Methylnaphthalene 2-Methyl phenol 3&4-Methylphenol Naphthalene 2-Nitroaniline 3-Nitroaniline

Parameter %RPD

F F F

F F F F

F L L

L L

F F F F F

Flag

RPD

Limit

186888Seq Number:

Limits

74-104 76-107 73-113 76-115 34-104 70-110 62-125 52-135 57-131 58-117 66-116 75-118 69-111 64-110 45-118 75-120 75-112 80-113 65-120 60-116 76-114 64-106 76-106 70-111 73-111 74-113 52-138 78-111 64-130 70-113 76-111 76-111 72-119 68-143 52-141 77-116 76-112 82-112 78-105 74-113 71-106 50-131 62-109 49-142 66-108 66-112 73-113 68-116 72-104 63-113…

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File details come from the government source that posted it. Updated Jun 25, 2026.