A06_Pre-Demolition_Sampling_Report_-_Building_112.pdf

April 14, 2020

Ms. Vika Sirova

Environmental Protection Specialist

National Park Service

Golden Gate National Recreation Area

201 Fort Mason

San Francisco, California 94123

Subject: Pre-Demolition Hazardous Materials Survey Report

NPS Building 112 - Fort Mason

San Francisco, California

Contract No. 140P8619D0001

Order No. 140P8620F0014

Dear Ms. Sirova:

Atlas Environmental Consulting, LLC (Atlas) is pleased to present this report detailing the hazardous materials survey project of Building 112 that is located within the Fort Mason Historic District of the

Golden Gate National Recreation Area in San Francisco, California. The interior of the building had been extensively damaged by a fire. Atlas performed a survey to determine the appropriate waste disposal requirements and approximate volumes of materials to be removed if the National Park

Service decides to perform renovation or demolition activities.

Field activities involved the collection of various samples for asbestos, lead, polychlorinated biphenyls and dioxins/furan analysis. Results of the analyses of these samples identified the following quantities of materials as present:

- Approximately 558 square feet of floor tiles/mastic and HVAC tape was determined to be

ACM, with the remaining 1,410 square feet of flooring materials was determined to be non-

ACM; and

- Approximately 4,050 square feet of wall/ceiling materials was characterized as a non-RCRA hazardous material, with the remaining 1,865 square feet of wall/ceiling material determined to be non-hazardous.

Dioxins and furans were detected in two wipe samples, which will require proper PPE and decontamination procedures as part of any renovation or demolition activities. These quantities do no not include non-building materials that may be present, such as workbenches, storage lockers, or equipment. Other materials such as oil containers, parts washers and aerosols may be present that will need to be field characterized for proposal disposal.

C B I

Atlas Environmental Consulting, LLC 160 Skyview Place

Vacaville, California 95687 w w w C B I c o m

Ms. Vika Sirova

April 14, 2020

If you have any questions regarding the information presented in this report, please contact the undersigned with Atlas at (510) 872-6577 or rob.delnagro@atlas-env.com.

Sincerely, Atlas Environmental Consulting, LLC

Rob Delnagro, P.G.

Project Manager

PRE-DEMOLITION HAZARDOUS MATERIALS

SURVEY REPORT

Building 112

Golden Gate National Recreation Area Fort Mason Historic District San Francisco, California

Prepared for:

National Park Service Golden Gate National Recreation Area

Building 201, Fort Mason San Francisco, California 94123

Prepared by:

160 Skyview Place

Vacaville, California 95687

April 2020

Pre-Demolition Hazardous Materials Survey Report Building 112, Fort Mason i

Table of Contents

List of Tables .................................................................................................................................. ii

List of Figures ................................................................................................................................. ii

List of Appendices .......................................................................................................................... ii

List of Acronyms ........................................................................................................................... iii

1.0 Executive Summary

2.0 Methods and Sampling Strategy

2.1 Bulk Asbestos Sampling and Analytical Results

2.2 Potential Lead Based Paint Chip Sampling and Analytical Results

2.3 Bulk Painted Material Sampling and Analytical Results

2.4 Suspect PCB Sampling and Analytical Results

2.5 Dioxin/Furan Sampling and Analytical Results

3.0 Summary and Conclusions

4.0 Signatures

ii

List of Tables ________________________________________

1 Bulk Asbestos Survey Results

2 Potential Lead-Based Paint Chip Survey Results

3 Bulk Painted Materials Survey Results

4 Potential PCB Survey Results

5 Dioxin/Furan Survey Results

List of Figures _______________________________________

1 Bulk Asbestos and Lead-Based Paint Chip Sample Locations

2 Bulk Painted Materials Sample Locations

3 PCBs and Dioxin/Furans Sample Locations

List of Appendices ___________________________________

A Limited Asbestos and Lead-Based Paint Survey Report

B Laboratory Analytical Reports and Chain-of-Custody Documents iii

List of Acronyms _____________________________________

ACCM Asbestos-Containing Construction Material

ACM Asbestos-Containing Materials

Atlas Atlas Environmental Consulting, LLC

CAC Certified Asbestos Consultant

Cat I Category I Non-Friable Asbestos Containing Materials

CMS CMS Environmental Services

ELAP Environmental Laboratory Accreditation Program

EMSL EMSL Analytical, Inc.

EPA Environmental Protection Agency

Flame AAS Flame Atomic Absorption Spectrophotometry

HUD Housing and Urban Development

HVAC Heating, Ventilation, and Air Conditioning

LBP Lead Base Paint

N/A Not Applicable

N/D Not Detected

NESHAP National Emissions Standards for Hazardous Air Pollutants

NPS National Park Service

PCB Polychlorinated biphenyl pg/wipe Picograms per Wipe

PLM Polarized Light Microscopy

RACM Regulated Asbestos-Containing Material

RCRA Resource Conservation and Recovery Act sf Square Feet

STLC Soluble Threshold Limit Concentrations

TCLP Toxic Characteristic Leaching Potential

TEF Total Equivalency Factor

TEQ Total Toxicity Equivalence

TTLC Total Threshold Limit Concentrations

1.0 Executive Summary _______________________________

Atlas Environmental Consulting, LLC (Atlas) is pleased to present this report detailing the results of the pre-demolition hazardous materials survey performed on February 14, 2020 at the

National Park Service (NPS) Building 112, located within the Fort Mason Historic District of the

Golden Gate National Recreation Area in San Francisco, California. The building was constructed in the mid-1940s and recently used for the storage of materials and equipment by the

NPS landscaping personnel. In 2019, the interior of the building was extensively damaged by a fire caused by arson.

The building is a single-story wood-framed structure that is approximate 2,220 square feet (sf).

The interior of the building consists of a main work area, office, storage rooms, equipment room, lunch/meeting room, and a restroom. The flooring consisted of vinyl floor tiles, with portions overlain by rubber mats. The interior walls were constructed of plywood, fiber board, gypsum board or acoustic tiles, with the ceiling constructed of acoustic tiles or gypsum board. As only the interior is scheduled for renovation, the bulk of the sampling was only performed from materials within the building; the only materials collected from exterior materials was window caulking from damaged windows.

Field activities consisted of the completion of a limited asbestos-containing materials (ACM) and lead-based paint (LBP) survey of materials that may be disturbed during the planned renovation of the interior of the building. This survey was performed by Mr. Cory Suppes of CMS Environmental

Services (CMS), a State of California certified asbestos consultant and lead inspector/assessor. Under the direction of Mr. Suppes, Atlas personnel collected bulk painted samples for lead analysis as part of disposal characterization activities. Atlas also collected dust samples for dioxin/furan analysis and select materials for polychlorinated biphenyls (PCB) analysis.

A total of twenty-four (24) bulk asbestos samples were collected, with a total of fifty-seven (57) layers analyzed; results of the analysis detected two ACM (>1% asbestos) and one asbestos-containing construction material (ACCM, >0.1% asbestos).

Two (2) paint-chip samples were collected and analyzed for lead, with detections reported at

0.16% and 0.24% by weight, which are below the United States Housing and Urban

Development (HUD) definition of LBP of 0.5% by weight.

A total of twenty (20) bulked painted material samples were collected for disposal characterization; thirteen (13) individual lead sample concentrations were detected in the initial leaching total threshold limit concentration (TTLC) analysis for lead that exceeded the initial

State of California screening criteria for disposal as non-hazardous waste; an additional five (5) samples had concentrations that were below the TTLC standard but exceeded the 10 times the soluble threshold limit concentration (STLC) criteria. These samples were composited for additional STLC analysis, with one (1) sample exceeding the STLC screening criteria. This sample was further analyzed for toxic characteristic leaching potential (TCLP), with the results below federal Resource Conservation and Recovery Act (RCRA) hazardous waste criteria. Based on the results, seventeen (17) of the samples exhibited characteristics of non-RCRA hazardous waste, with the remaining three (3) samples considered non-hazardous.

In addition, five (5) samples of select materials were collected for analysis for PCBs; no PCBs were reported above detection limits. Two (2) surface wipe samples were collected with the main room and the “plastics” storage room for dioxins/furans analysis. Various dioxins and furans were reported above the toxic equivalency factors in the laboratory analysis.

2.0 Methods and Sampling Strategy ____________________

Bulk asbestos and paint chip sampling was performed by Mr. Cory Suppes with CMS, who is a

State of California Division of Occupational Health Certified Asbestos Consultant (CAC) #01-

2998 and a Department of Public Health Lead Inspector/Assessor #1213. Bulk painted material sampling was performed by Atlas personnel under the direction of Mr. Suppes. A copy of the report prepared by CMS detailing the bulk asbestos and paint chip sampling activities is included in Appendix A. The following sections summarizes these activities as well as the sample collection activities performed by Atlas and analytical results.

2.1 Bulk Asbestos Sampling and Analytical Results

A total of twenty-four (24) bulk asbestos samples were collected from suspect materials in the interior of the building by CMS, with a total of fifty-seven (57) layers analyzed by Polarized Light

Microscopy (PLM) with Dispersion Staining techniques under Environmental Protection Agency

(EPA) Method 600/R-93/116. Materials were collected using semi-destructive sampling methods.

Sample analysis was performed by EMSL Analytical, Inc. (EMSL), an Environmental Laboratory

Accreditation Program (ELAP)-certified laboratory located in San Leandro, California.

Results of the analysis identified the floor tiles/mastic in the locker room and the tape on the heating, ventilation, and air conditioning (HVAC) unit in the laundry/mechanical room as being an

ACM (<1% asbestos). The floor tile/mastic in the meeting room was identified as being an ACCM

(>0.1% asbestos). Complete analytical results are presented in the CMS report included in

Appendix A; for reference, sample locations are presented on Figure 1 with the tabulated results and approximately quantities of material present provided in Table 1 on the following page.

Table 1 – Bulk Asbestos Survey Results

Sample

Number

Homogeneous

Material Location

NESHAP

Category

Approximate

Quantity

Asbestos

Content

1a 9-inch Floor Tile and

Mastic Locker Room Cat I 225 sf

3%

Chrysotile 1b

2a Sheet Flooring Lunch/Meeting Room N/A N/A ND

2b

3a Wallboard/Joint

Compound Office N/A N/A ND

3b

4a 12-inch Ceiling Tile and Mastic Main Work Area N/A N/A ND

4b

5a Sheet Flooring/Vapor

Barrier Main Work Area N/A N/A ND

5b

6a Green Floor Tile and

Mastic Lunch/Meeting Room Cat I 330 sf

<1%

Chrysotile 6b

7a Sheet Flooring Restroom N/A N/A ND

7b

8a Sheet Flooring, Floor

Tile and Mastic Office N/A N/A ND

8b

9a Window Caulking Main Work Area N/A N/A ND

9b

10a HVAC Tape

Laundry/Mechanical

Room RACM 3 sf

50%

Chrysotile 10b

11a Window Caulking Exterior, Restroom N/A N/A ND

11b

12a Sheet Flooring

“Plastic” Storage

Room

N/A N/A ND

12b

Notes:

NESHAP – National Emissions Standards for Hazardous Air Pollutants

Cat I – Category I Non-Friable ACM sf – square feet

N/A – not applicable

ND – not detected above laboratory detection limits

RACM – Regulated Asbestos-Containing Material

2.2 Potential Lead Based Paint Chip Sampling and Analytical Results

Two (2) paint chip samples were collected and analyzed for lead content by CMS. The samples were submitted to EMSL for analysis by EPA Method 7240 – Flame Atomic Absorption

Spectrophotometry (Flame AAS). Collection of these samples were not part of the pre-demolition scope of activities, as such the results are provided for reference only.

Results of the analysis did not report any exceedances of levels considered by HUD to be a lead-based paint (>0.5% by weight or >5,000 parts per million). Complete analytical results are presented in the CMS report included in Appendix A; for reference, sample locations are presented on Figure 1, with tabulated results provided in Table 2.

Table 2 – Potential Lead Based Paint Chip Survey Results

Sample Number Material Location Lead Content

(% weight)

Pb-1 White Wall Paint Restroom 0.16% wt.

Pb-2 Green Wall Paint Main Work Area 0.24% wt.

Notes:

N/A – not applicable

% wt. – percent by weight

2.3 Bulk Painted Material Sampling and Analytical Results

A total of twenty (20) samples of painted materials were collected throughout the interior of the building by Atlas personnel under the supervision of Mr. Cory Suppes with CMS. The samples were collected by using a 3-inch hole saw to collect bulk samples of the paint and underlying substrate, placed into individual sealed plastic bag and transported in an insulated chest with ice to McCampbell Analytical, Inc., an ELAP-certified laboratory in Pittsburg, California.

The samples were initially analyzed for TTLC–Lead under EPA Method SW6020. Based on the initial results, select samples were composited and analyzed for STLC-Lead and/or TCLP-Lead under State Method SW6020. Copies of the laboratory analytical reports and chain-of-custody documents are included in Appendix B. Sample locations are depicted on Figure 2, with the data and waster determination presented in Table 3 on the following page.

Table 3 – Bulk Painted Materials Survey Results

Sample

Number Material Location

Approximate

Quantity

T T

L C

L ea d

(m g /K g

S T

L C

L

/L

T C

L P

L

/L

Waste

Determination

L-1 Plywood, White Locker Room Wall, Lower 210 sf 5,800

--- 0.39 Non-RCRA

Hazardous

L-2 Fiberboard, White Locker Room Wall, Upper 330 sf 1,900

L-3 Fiberboard, White Lunch/Meeting

Room Wall, Upper 410 sf 1,100

L-4 Plywood, White Lunch/Meeting

Room Wall, Lower 265 sf 4,700

L-5 Fiberboard, White Lunch/Meeting

Room, Ceiling* 330 sf 1,100 --- 0.48

Non-RCRA

Hazardous

L-6 Fiberboard, White Main Work Area

Wall, Lower 260 sf 400

21 0.20 Non-RCRA

Hazardous L-9 Plywood, Green

Main Work Area

Wall, Lower 50 sf 230

L-7 Plywood, Green Main Work Area

Wall, Upper 300 sf 1,900

--- 0.22 Non-RCRA

Hazardous

L-8 Plywood, White Main Work Area

Wall, Lower 225 sf 3,000

L-10 Fiberboard, Green Main Work Area

Wall, Upper# 315 sf 1,400

L-11 Plywood, White Main Work Area

Wall, Lower 50 sf 3,400

L-12 Plywood, White Restroom Wall, Lower 190 sf 1,700

L-13 Fiberboard, White Restroom Wall, Upper 150 sf 680

L-14 Gypsum, White Office Wall, North

Side 200 sf 20 --- --- Non-Hazardous

L-15 Fiberboard, White Office Wall, South

Side 215 sf 395

3.7 --- Non-Hazardous

L-16 16-inch Tiles, White Office Ceiling* 130 sf 130

Table 3 – Bulk Painted Materials Survey Results - Continued

Sample

Number Material Location

Approximate

Quantity

T T

L C

L

/K g

S T

L C

L

/L

T C

L P

L

/L

Waste

Determination

L-17 Plywood, Lt. Green Electric Closet Wall, Lower 5 sf 3,600

--- 1.7 Non-RCRA

Hazardous

L-18 Plywood, Dk.

Green

Electric Closet Wall, Lower 5 sf 9,600

L-19 Plywood, White “Plastic” Storage

Room Wall, Lower 200 sf 3,600

L-20 Fiberboard, White “Plastic” Storage

Room Wall, Upper 220 sf 5,400

State of California Title 22 Hazardous Waste Screening Limits

(CCR 66262.24)

1,000 5.0 5.0

Notes:

* - ceiling tiles in the Locker Room (225 sf) and “Plastics” Room (130 sf) were similar to Meeting/Lunch Room and assumed non-RCRA hazardous; ceiling tiles in the Main Room, Restroom, Office and Mechanical Room were not painted and considered non-hazardous

# - wall material on the west wall of the Mechanical Room (180 sf) was similar to Main Room and assumed non-RCRA hazardous.

mg/Kg – milligrams per kilogram mg/L – milligrams per liter

RCRA – Resource Conservation and Recovery Act

--- - samples not analyzed sf – square feet

2.4 Suspect PCB Sampling and Analytical Results

Five (5) samples of caulking material present in windows and the restroom were collected by Atlas personnel. The samples were collected by cutting the caulking into the appropriate length using a razor, with the cut section of the caulking removed and placed into a sealed plastic bag. The samples were then transported in an insulated chest with ice to McCampbell Analytical, Inc., an ELAP-certified laboratory in Pittsburg, California, for analysis for PCBs under EPA Method SW8082.

No PCBs were detected in any of the samples above laboratory detection limits. A copy of the laboratory analytical report and chain-of-custody document is included in Appendix B. Sample locations are depicted on Figure 3, with the data presented in the following Table 4.

Table 4 – Suspect PCB Survey Results

Sample

Number Material Location

Approximate

Quantity

PCBs

(mg/Kg)

P-1 Caulking Lunch/Meeting Room Window N/A ND

P-2 Caulking Main Work Area Window N/A ND

P-3 Caulking Restroom Sink N/A ND

P-4 Caulking Restroom Window N/A ND

P-5 Caulking Main Work Area Window N/A ND

Notes:

mg/Kg – milligrams per kilogram

N/A – not applicable

ND – not detected above reporting limit of 25 mg/kg

2.5 Dioxin/Furan Sampling and Analytical Results

Two (2) wipe samples were collected by Atlas personnel from surfaces within the Main Work

Area and “Plastics” Storage Room to determine if dioxins or furans were present following the fire. The sample from the Main Work Area was collected from the surface of a workbench along the west wall, with the other sample collected from shelving in the “Plastics” Storage

Room. Using a template provided by the laboratory, a 100 square centimeter area was wiped using a clean, pre-wetted (hexane) swap in perpendicular directions. The wipe was then transferred into a clean 40-milliliter VOA, sealed and placed into an insulated chest with ice.

The samples were then transported in an insulated chest with ice to McCampbell Analytical, Inc., an ELAP-certified laboratory in Pittsburg, California, for analysis for Dioxins/Furans under EPA Method E1613B.

Results of the analysis reported various dioxins and furans. A copy of the laboratory analytical report and chain-of-custody document is included in Appendix B. Sample locations are depicted on Figure 3, with the data presented on the following Table 5.

Table 5 – Dioxin/Furan Survey Results

Sample

Number

Sample

Method Location Analyte

Reported

Concentration

(pg/wipe)

D-1 Wipe “Plastics” Storage

Room

1,2,3,7,8-PeCDD 31.8

1,2,3,4,7,8-HxCDD 85.6

1,2,3,6,7,8-HxCDD 330

1,2,3,7,8,9-HxCDD 220

1,2,3,4,6,7,8-HpCDD 10,900

OCDD 43,800

2,3,7,8-TCDF 6.00

1,2,3,4,7,8-HxCDF 60.2

1,2,3,4,7,8,9-HpCDF 43.8

OCDF 452

Total-Pentadioxins 164

Total-Hexadioxins 2,540

Total-Heptadioxins 19,200

Total-Tetrafurans 556

Total-Pentafurans 384

Total-Hexafurans 1,890

Total-Heptafurans 2,200

Total Toxicity Equivalence (TEQ): 225

D-2 Wipe Main Work Area

2,3,7,8-TCDD 9.00

1,2,3,7,8-PeCDD 29.2

1,2,3,6,7,8-HxCDD 98.2

1,2,3,7,8,9-HxCDD 73.6

1,2,3,4,6,7,8-HpCDD 4,620

OCDD 34,800

1,2,3,4,6,7,8-HpCDF 479

OCDF 496

Table 5 – Dioxin/Furan Survey Results - Continued

Sample

Number

Sample

Method Location Analyte

Reported

Concentration

(pg/wipe)

D-2 Wipe Main Work Area

Total-Pentadioxins 119

Total-Hexadioxins 855

Total-Heptadioxins 8,220

Total-Tetrafurans 406

Total-Pentafurans 28.8

Total-Hexafurans 684

Total-Heptafurans 1,090

Total Toxicity Equivalence (TEQ): 117

Notes:

pg/wipe – picograms per wipe

3.0 Summary and Conclusions _________________________

Based on the field activities and laboratory analytical results, Atlas concludes the following:

- Results of the bulk asbestos sampling survey identified approximately 555 sf of floor tiles and mastic in the locker room and lunch/break room that will require proper abatement and disposal.

- The remaining 1,410 sf of flooring materials is considered to be non-ACM.

- Asbestos was also identified in the tape used on the HVAC insulation in the laundry/mechanical room (3 sf). This material is considered a RACM which is considered to have the potential to be a hazardous air pollutant; as such appropriate notifications to the EPA should be made prior to abatement, with appropriate safety measures implemented during removal (e.g. wetting of the material, proper PPE, and conduct the removal activities in a manner that produces no visible emissions).

- Approximately 3,370 sf of painted wall materials located in the Locker Room, Break/Meeting Room, Main Room, Restroom, Mechanical Room, and “Plastic

Room” are characterized as non-RCRA hazardous waste based on the bulk lead sampling results.

- Approximately 680 sf of ceiling materials located in the Locker Room, Break/Meeting Room, and “Plastic” Room are characterized as non-RCRA hazardous waste based on the bulk lead sampling results.

- The remaining 1,865 sf wall/ceiling materials are considered to be non-hazardous

(ceiling materials in the Main Room, Restroom, Office, and Mechanical Room; wall material in the Office).

- Dioxins and furans were detected in the two wipe samples. Due to the presence of these compounds, appropriate personal protective equipment and decontamination procedures will need to be implemented during demolition activities.

- No PCBs were identified in the sampled caulking material, however light fixtures and fluorescent lightbulbs are present that may be PCB- or mercury-containing. A waste determination will need to be made during demolition activities.

- No lead-based paints exceeding HUD guidelines were identified in the limited survey.

- Materials above the ceiling were not accessible and not evaluated; if any suspect materials are encountered and require demolition or abatement, additional sampling may be required.

- Other materials (used oil, parts cleaners, aerosols, etc.) may be present that require proper field characterization and disposal.

4.0 Signatures _______________________________________

The interpretations and conclusions contained in this report represent our professional opinions.

These opinions are based on currently accepted engineering practices at this time and for this specific site. No additional warranty is implied or intended.

Report prepared by:

Rob Delnagro, P.G.

Project Manager

Report reviewed by:

Julie Anenson

Quality Assurance Manager

Figures

Appendix A

Limited Asbestos and Lead-Based Paint Survey Report

Appendix B

Laboratory Analytical Reports and Chain-of-Custody Documents

WorkOrder:

Report Created for: Atlas Environmental Consulting, LLC

160 Skyview Place Vacaville, CA 95687

Project Contact: Rob Delnagro

Project: 20021; NPS-Building 112 Project P.O.:

Project Received: 02/14/2020

Analytical Report reviewed & approved for release on 02/24/2020 by:

Yen Cao

2002557

The report shall not be reproduced except in full, without the written approval of the laboratory. The analytical results relate only to the items tested. Results reported conform to the most current NELAP standards, where applicable, unless otherwise stated in the case narrative.

Analytical Report

1534 Willow Pass Rd. Pittsburg, CA 94565 ♦ TEL: (877) 252-9262 ♦ FAX: (925) 252-9269 ♦ www.mccampbell.com

CA ELAP 1644 ♦ NELAP 4033 ORELAP

Project Manager

McCampbell Analytical, Inc.

"When Quality Counts"

Glossary of Terms & Qualifier Definitions

Client: Atlas Environmental Consulting, LLC Project: 20021; NPS-Building 112 WorkOrder: 2002557

McCampbell Analytical, Inc.

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Glossary Abbreviation

%D Serial Dilution Percent Difference 95% Interval 95% Confident Interval DF Dilution Factor DI WET (DISTLC) Waste Extraction Test using DI water DISS Dissolved (direct analysis of 0.45 µm filtered and acidified water sample) DLT Dilution Test (Serial Dilution) DUP Duplicate EDL Estimated Detection Limit ERS External reference sample. Second source calibration verification.

ITEF International Toxicity Equivalence Factor LCS Laboratory Control Sample LQL Lowest Quantitation Level MB Method Blank MB % Rec % Recovery of Surrogate in Method Blank, if applicable MDL Method Detection Limit ML Minimum Level of Quantitation MS Matrix Spike MSD Matrix Spike Duplicate N/A Not Applicable ND Not detected at or above the indicated MDL or RL NR Data Not Reported due to matrix interference or insufficient sample amount.

PDS Post Digestion Spike PDSD Post Digestion Spike Duplicate PF Prep Factor RD Relative Difference RL Reporting Limit (The RL is the lowest calibration standard in a multipoint calibration.)

RPD Relative Percent Deviation RRT Relative Retention Time SPK Val Spike Value SPKRef Val Spike Reference Value SPLP Synthetic Precipitation Leachate Procedure ST Sorbent Tube TCLP Toxicity Characteristic Leachate Procedure TEQ Toxicity Equivalents TZA TimeZone Net Adjustment for sample collected outside of MAI's UTC.

WET (STLC) Waste Extraction Test (Soluble Threshold Limit Concentration)

Analytical Report

McCampbell Analytical, Inc.

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client: Atlas Environmental Consulting, LLC

Project: 20021; NPS-Building 112

Date Received: 02/14/2020 14:20 Date Prepared: 02/14/2020

WorkOrder: 2002557 Extraction Method: SW3050B Analytical Method: SW6020 Unit: mg/Kg

Lead

L-1 2002557-001A Solid 02/14/2020 09:30 ICP-MS3 054SMPL.D 194034

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 5800 10 20 02/18/2020 17:12

Surrogates REC (%) Limits

Analyst(s): MIG

Terbium 94 70-130 02/18/2020 17:12

L-2 2002557-002A Solid 02/14/2020 09:32 ICP-MS3 028SMPL.D 194034

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 1900 5.0 10 02/18/2020 14:33

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 100 70-130 02/18/2020 14:33

L-3 2002557-003A Solid 02/14/2020 09:34 ICP-MS3 029SMPL.D 194034

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 1100 5.0 10 02/18/2020 14:39

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 98 70-130 02/18/2020 14:39

L-4 2002557-004A Solid 02/14/2020 09:35 ICP-MS3 055SMPL.D 194034

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 4700 10 20 02/18/2020 17:18

Surrogates REC (%) Limits

Analyst(s): MIG

Terbium 100 70-130 02/18/2020 17:18

CA ELAP 1644 • NELAP 4033ORELAP

(Cont.)

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client: Atlas Environmental Consulting, LLC

Project: 20021; NPS-Building 112

Date Received: 02/14/2020 14:20 Date Prepared: 02/14/2020

WorkOrder: 2002557 Extraction Method: SW3050B Analytical Method: SW6020 Unit: mg/Kg

Lead

L-5 2002557-005A Solid 02/14/2020 09:37 ICP-MS3 031SMPL.D 194034

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 1100 5.0 10 02/18/2020 14:51

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 101 70-130 02/18/2020 14:51

L-6 2002557-006A Solid 02/14/2020 09:40 ICP-MS3 056SMPL.D 194034

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 400 0.50 1 02/18/2020 17:24

Surrogates REC (%) Limits

Analyst(s): MIG

Terbium 99 70-130 02/18/2020 17:24

L-7 2002557-007A Solid 02/14/2020 09:42 ICP-MS3 033SMPL.D 194034

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 1900 5.0 10 02/18/2020 15:03

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 101 70-130 02/18/2020 15:03

L-8 2002557-008A Solid 02/14/2020 09:45 ICP-MS3 034SMPL.D 194034

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 3000 5.0 10 02/18/2020 15:09

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 99 70-130 02/18/2020 15:09

CA ELAP 1644 • NELAP 4033ORELAP

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client: Atlas Environmental Consulting, LLC

Project: 20021; NPS-Building 112

Date Received: 02/14/2020 14:20 Date Prepared: 02/14/2020

WorkOrder: 2002557 Extraction Method: SW3050B Analytical Method: SW6020 Unit: mg/Kg

Lead

L-9 2002557-009A Solid 02/14/2020 09:46 ICP-MS3 059SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 230 0.50 1 02/18/2020 17:42

Surrogates REC (%) Limits

Analyst(s): MIG

Terbium 102 70-130 02/18/2020 17:42

L-10 2002557-010A Solid 02/14/2020 09:48 ICP-MS3 036SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 1400 5.0 10 02/18/2020 15:22

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 101 70-130 02/18/2020 15:22

L-11 2002557-011A Solid 02/14/2020 09:50 ICP-MS3 037SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 3400 5.0 10 02/18/2020 15:28

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 102 70-130 02/18/2020 15:28

L-12 2002557-012A Solid 02/14/2020 09:53 ICP-MS3 041SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 1700 5.0 10 02/18/2020 15:52

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 104 70-130 02/18/2020 15:52

CA ELAP 1644 • NELAP 4033ORELAP

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client: Atlas Environmental Consulting, LLC

Project: 20021; NPS-Building 112

Date Received: 02/14/2020 14:20 Date Prepared: 02/14/2020

WorkOrder: 2002557 Extraction Method: SW3050B Analytical Method: SW6020 Unit: mg/Kg

Lead

L-13 2002557-013A Solid 02/14/2020 09:55 ICP-MS3 042SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 680 5.0 10 02/18/2020 15:58

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 105 70-130 02/18/2020 15:58

L-14 2002557-014A Solid 02/14/2020 10:00 ICP-MS3 061SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 18 0.50 1 02/18/2020 17:55

Surrogates REC (%) Limits

Analyst(s): MIG

Terbium 101 70-130 02/18/2020 17:55

L-15 2002557-015A Solid 02/14/2020 10:02 ICP-MS3 044SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 590 5.0 10 02/18/2020 16:11

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 102 70-130 02/18/2020 16:11

L-16 2002557-016A Solid 02/14/2020 10:04 ICP-MS3 060SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 390 0.50 1 02/18/2020 17:49

Surrogates REC (%) Limits

Analyst(s): MIG

Terbium 102 70-130 02/18/2020 17:49

CA ELAP 1644 • NELAP 4033ORELAP

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client: Atlas Environmental Consulting, LLC

Project: 20021; NPS-Building 112

Date Received: 02/14/2020 14:20 Date Prepared: 02/14/2020

WorkOrder: 2002557 Extraction Method: SW3050B Analytical Method: SW6020 Unit: mg/Kg

Lead

L-17 2002557-017A Solid 02/14/2020 10:05 ICP-MS3 046SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 3600 5.0 10 02/18/2020 16:23

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 105 70-130 02/18/2020 16:23

L-18 2002557-018A Solid 02/14/2020 10:07 ICP-MS2 042SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 9600 25 50 02/18/2020 21:59

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 104 70-130 02/18/2020 21:59

L-19 2002557-019A Solid 02/14/2020 10:10 ICP-MS3 048SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 3600 5.0 10 02/18/2020 16:35

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 101 70-130 02/18/2020 16:35

L-20 2002557-020A Solid 02/14/2020 10:13 ICP-MS2 043SMPL.D 194046

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 5400 10 20 02/18/2020 22:05

Surrogates REC (%) Limits

Analyst(s): ND

Terbium 104 70-130 02/18/2020 22:05

CA ELAP 1644 • NELAP 4033ORELAP

Quality Control Report

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client: Atlas Environmental Consulting, LLC

Project: 20021; NPS-Building 112

Date Analyzed: 02/14/2020 Date Prepared: 02/14/2020

WorkOrder: 2002557 BatchID: 194034

Analytical Method: SW6020 Unit: mg/kg Sample ID: MB/LCS/LCSD-194034

Instrument: ICP-MS2 Matrix: Soil

Extraction Method: SW3050B

QC Summary Report for Metals

Analyte MB Result

MDL RL SPK

Val

MB SS

%REC

MB SS

Limits

Lead ND 0.0940 0.500 - - -

Surrogate Recovery

Terbium 524 500 105 70-130

Analyte LCS Result

LCSD

Result

SPK

Val

LCS

%REC

LCSD

%REC

LCS/LCSD

Limits

RPD RPD

Limit

Lead 47.5 47.5 50 95 95 75-125 0.0421 20

Surrogate Recovery

Terbium 527 518 500 105 104 70-130 1.80 20

CA ELAP 1644 • NELAP 4033ORELAP

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client: Atlas Environmental Consulting, LLC

Project: 20021; NPS-Building 112

Date Analyzed: 02/18/2020 Date Prepared: 02/14/2020

WorkOrder: 2002557 BatchID: 194046

Analytical Method: SW6020 Unit: mg/kg Sample ID: MB/LCS/LCSD-194046

Instrument: ICP-MS4 Matrix: Soil

Extraction Method: SW3050B

QC Summary Report for Metals

Analyte MB Result

MDL RL SPK

Val

MB SS

%REC

MB SS

Limits

Lead ND 0.0940 0.500 - - -

Surrogate Recovery

Terbium 525 500 105 70-130

Analyte LCS Result

LCSD

Result

SPK

Val

LCS

%REC

LCSD

%REC

LCS/LCSD

Limits

RPD RPD

Limit

Lead 50.2 49.7 50 100 99 75-125 1.11 20

Surrogate Recovery

Terbium 532 524 500 106 105 70-130 1.55 20

1534 Willow Pass Rd Pittsburg, CA 94565-1701

(925) 252-9262

CHAIN-OF-CUSTODY RECORD Page

Lab ID Matrix Collection Date Hold

Requested Tests (See legend below)

Report to:

Rob Delnagro

160 Skyview Place Vacaville, CA 95687

FAX:

PO:

02/14/2020

Client ID

Project: 20021; NPS-Building 112

WorkOrder: 2002557

Date Logged:

Date Received: 02/14/2020

1 2 3 4 5 6 7 8 9 10 11 12

Atlas Environmental Consulting, LLC

Bill to:

Accounts Payable Atlas Environmental Consulting, LLC 160 Skyview Place Vacaville, CA 95687

Requested TAT: 5 days;

ClientCode: AECV

Email: rob.delnagro@atlas-env.com

EDF EQuIS Email HardCopy ThirdPartyExcel J-flagWriteOn cc/3rd Party:

WaterTrax

Detection Summary Dry-Weight

A2002557-001 Solid 2/14/2020 09:30L-1 A A2002557-002 Solid 2/14/2020 09:32L-2 A A2002557-003 Solid 2/14/2020 09:34L-3 A A2002557-004 Solid 2/14/2020 09:35L-4 A A2002557-005 Solid 2/14/2020 09:37L-5 A A2002557-006 Solid 2/14/2020 09:40L-6 A A2002557-007 Solid 2/14/2020 09:42L-7 A A2002557-008 Solid 2/14/2020 09:45L-8 A A2002557-009 Solid 2/14/2020 09:46L-9 A A2002557-010 Solid 2/14/2020 09:48L-10 A A2002557-011 Solid 2/14/2020 09:50L-11 A A2002557-012 Solid 2/14/2020 09:53L-12 A A2002557-013 Solid 2/14/2020 09:55L-13 A A2002557-014 Solid 2/14/2020 10:00L-14 A A2002557-015 Solid 2/14/2020 10:02L-15 A

Prepared by: Lilly Ortiz

NOTE: Soil samples are discarded 60 days after results are reported unless other arrangements are made (Water samples are 30 days).

Hazardous samples will be returned to client or disposed of at client expense.

Comments:

PBMS_TTLC_S PRDisposal Fee1 2 3 4

5 6 7 8

9 10

Test Legend:

11 12

Project Manager: Angela Rydelius

Pittsburg, CA 94565-1701

(925) 252-9262

CHAIN-OF-CUSTODY RECORD Page

Lab ID Matrix Collection Date Hold

Requested Tests (See legend below)

Report to:

Rob Delnagro

160 Skyview Place Vacaville, CA 95687

FAX:

PO:

02/14/2020

Client ID

Project: 20021; NPS-Building 112

WorkOrder: 2002557

Date Logged:

Date Received: 02/14/2020

1 2 3 4 5 6 7 8 9 10 11 12

Atlas Environmental Consulting, LLC

Bill to:

Accounts Payable Atlas Environmental Consulting, LLC 160 Skyview Place Vacaville, CA 95687

Requested TAT: 5 days;

ClientCode: AECV

Email: rob.delnagro@atlas-env.com

EDF EQuIS Email HardCopy ThirdPartyExcel J-flagWriteOn cc/3rd Party:

WaterTrax

Detection Summary Dry-Weight

A2002557-016 Solid 2/14/2020 10:04L-16 A A2002557-017 Solid 2/14/2020 10:05L-17 A A2002557-018 Solid 2/14/2020 10:07L-18 A A2002557-019 Solid 2/14/2020 10:10L-19 A A2002557-020 Solid 2/14/2020 10:13L-20 A

Prepared by: Lilly Ortiz

NOTE: Soil samples are discarded 60 days after results are reported unless other arrangements are made (Water samples are 30 days).

Hazardous samples will be returned to client or disposed of at client expense.

Comments:

PBMS_TTLC_S PRDisposal Fee1 2 3 4

5 6 7 8

9 10

Test Legend:

11 12

Lab ID Client ID Collection Date & Time

Date Logged:

TATMatrix Test Name Containers /Composites

WORK ORDER SUMMARY

Work Order: 2002557

Comments:

Client Name: ATLAS ENVIRONMENTAL CONSULTING, LLC Project: 20021; NPS-Building 112 QC Level: LEVEL 2

HoldDe-chlorinated

SubOutBottle & Preservative

2/14/2020

Sediment Content

EDF EQuIS Email HardCopy ThirdPartyExcel J-flagWriteOn

Rob DelnagroClient Contact:

rob.delnagro@atlas-env.comContact's Email:

WaterTrax

McCampbell Analytical, Inc.

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

2002557-001A L-1 2/14/2020 9:30 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-002A L-2 2/14/2020 9:32 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-003A L-3 2/14/2020 9:34 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-004A L-4 2/14/2020 9:35 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-005A L-5 2/14/2020 9:37 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-006A L-6 2/14/2020 9:40 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-007A L-7 2/14/2020 9:42 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-008A L-8 2/14/2020 9:45 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-009A L-9 2/14/2020 9:46 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-010A L-10 2/14/2020 9:48 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-011A L-11 2/14/2020 9:50 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-012A L-12 2/14/2020 9:53 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-013A L-13 2/14/2020 9:55 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-014A L-14 2/14/2020 10:00 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-015A L-15 2/14/2020 10:02 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-016A L-16 2/14/2020 10:04 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

1 of 2Page

- STLC and TCLP extractions require 2 days to complete; therefore, all TATs begin after the extraction is completed (i.e., One-day TAT yields results in 3 days from sample submission).

NOTES:

- MAI assumes that all material present in the provided sampling container is considered part of the sample - MAI does not exclude any material from the sample prior to sample preparation unless requested in writing by the client.

Date Logged:

TATMatrix Test Name Containers /Composites

WORK ORDER SUMMARY

Work Order: 2002557

Comments:

Client Name: ATLAS ENVIRONMENTAL CONSULTING, LLC Project: 20021; NPS-Building 112 QC Level: LEVEL 2

HoldDe-chlorinated

SubOutBottle & Preservative

2/14/2020

Sediment Content

EDF EQuIS Email HardCopy ThirdPartyExcel J-flagWriteOn

Rob DelnagroClient Contact:

rob.delnagro@atlas-env.comContact's Email:

WaterTrax

McCampbell Analytical, Inc.

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

2002557-017A L-17 2/14/2020 10:05 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-018A L-18 2/14/2020 10:07 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-019A L-19 2/14/2020 10:10 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2002557-020A L-20 2/14/2020 10:13 5 daysSolid SW6020 (Lead) 1 Plastic Baggie, Medium

2 of 2Page

- STLC and TCLP extractions require 2 days to complete; therefore, all TATs begin after the extraction is completed (i.e., One-day TAT yields results in 3 days from sample submission).

NOTES:

- MAI assumes that all material present in the provided sampling container is considered part of the sample - MAI does not exclude any material from

Sample Receipt Checklist

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client Name: Atlas Environmental Consulting, LLC

WorkOrder №: 2002557

Date Logged: 2/14/2020

Logged by: Lilly OrtizMatrix: Solid Carrier: Client Drop-In

Shipping container/cooler in good condition? Yes No

Custody seals intact on shipping container/cooler? Yes No NA

Samples Received on Ice? Yes No

Chain of custody present? Yes No

Chain of custody signed when relinquished and received? Yes No

Chain of custody agrees with sample labels? Yes No

Samples in proper containers/bottles? Yes No

Sample containers intact? Yes No

Sufficient sample volume for indicated test? Yes No

NAAll samples received within holding time? Yes No

NASample/Temp Blank temperature

Yes No NAWater - VOA vials have zero headspace / no bubbles?

pH acceptable upon receipt (Metal: <2; Nitrate 353.2/4500NO3:

<2; 522: <4; 218.7: >8)?

Yes No NA

Temp: 22.2°C

Chain of Custody (COC) Information

Yes NoSample IDs noted by Client on COC?

Yes NoDate and Time of collection noted by Client on COC?

Yes NoSampler's name noted on COC?

Sample Receipt Information

Sample Preservation and Hold Time (HT) Information

Sample labels checked for correct preservation? Yes No

Project: 20021; NPS-Building 112

Comments:

pH tested and acceptable upon receipt (200.8: ≤2; 525.3: ≤4;

530: ≤7; 541: <3; 544: <6.5 & 7.5)?

Yes No NA UCMR Samples:

Free Chlorine tested and acceptable upon receipt (<0.1mg/L)? Yes No NA

Date and Time Received: 2/14/2020 14:20

Received by: Lilly Ortiz

COC agrees with Quote? Yes No NA

160 Skyview Place Vacaville, CA 95687

Project Contact: Rob Delnagro

Project: 20021; NPS-Building 112 Project P.O.:

Project Received: 02/14/2020

Analytical Report reviewed & approved for release on 03/13/2020 by:

Susan Thompson

2002557 A

The report shall not be reproduced except in full, without the written approval of the laboratory. The analytical results relate only to the items tested. Results reported conform to the most current NELAP standards, where applicable, unless otherwise stated in the case narrative.

Analytical Report

1534 Willow Pass Rd. Pittsburg, CA 94565 ♦ TEL: (877) 252-9262 ♦ FAX: (925) 252-9269 ♦ www.mccampbell.com

CA ELAP 1644 ♦ NELAP 4033 ORELAP

Project Manager

McCampbell Analytical, Inc.

Project: 20021; NPS-Building 112 WorkOrder: 2002557 A

McCampbell Analytical, Inc.

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Glossary Abbreviation

%D Serial Dilution Percent Difference 95% Interval 95% Confident Interval CPT Consumer Product Testing not NELAP Accredited DF Dilution Factor DI WET (DISTLC) Waste Extraction Test using DI water DISS Dissolved (direct analysis of 0.45 µm filtered and acidified water sample) DLT Dilution Test (Serial Dilution) DUP Duplicate EDL Estimated Detection Limit ERS External reference sample. Second source calibration verification.

ITEF International Toxicity Equivalence Factor LCS Laboratory Control Sample LQL Lowest Quantitation Level MB Method Blank MB % Rec % Recovery of Surrogate in Method Blank, if applicable MDL Method Detection Limit ML Minimum Level of Quantitation MS Matrix Spike MSD Matrix Spike Duplicate N/A Not Applicable ND Not detected at or above the indicated MDL or RL NR Data Not Reported due to matrix interference or insufficient sample amount.

PDS Post Digestion Spike PDSD Post Digestion Spike Duplicate PF Prep Factor RD Relative Difference RL Reporting Limit (The RL is the lowest calibration standard in a multipoint calibration.)

RPD Relative Percent Deviation RRT Relative Retention Time SPK Val Spike Value SPKRef Val Spike Reference Value SPLP Synthetic Precipitation Leachate Procedure ST Sorbent Tube TCLP Toxicity Characteristic Leachate Procedure TEQ Toxicity Equivalents TZA TimeZone Net Adjustment for sample collected outside of MAI's UTC.

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client: Atlas Environmental Consulting, LLC

Project: 20021; NPS-Building 112

Date Received: 02/14/2020 14:20 Date Prepared: 03/10/2020

WorkOrder: 2002557 Extraction Method: CA Title 22 Analytical Method: SW6020 Unit: mg/L

Metals (STLC)

L-6,9 2002557-022A Soil 02/14/2020 09:46 ICP-MS2 043SMPL.D 195427

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 21 0.10 1 03/12/2020 23:46

Analyst(s): ND

L-15,16 2002557-025A Soil 02/14/2020 10:04 ICP-MS2 044SMPL.D 195427

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 3.7 0.10 1 03/12/2020 23:52

Analyst(s): ND

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client: Atlas Environmental Consulting, LLC

Project: 20021; NPS-Building 112

Date Received: 02/14/2020 14:20 Date Prepared: 03/10/2020

WorkOrder: 2002557 Extraction Method: SW1311/SW3010 Analytical Method: SW6020 Unit: mg/L

Metals (TCLP)

L-5 2002557-005A Solid 02/14/2020 09:37 ICP-MS4 112013SMPL.d 195425

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 0.48 0.10 1 03/11/2020 21:51

Analyst(s): ND

L-1,2,3,4 2002557-021A Soil 02/14/2020 09:35 ICP-MS4 112014SMPL.d 195425

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 0.39 0.10 1 03/11/2020 21:55

Analyst(s): ND

L-7,8,10,11,12,13 2002557-023A Soil 02/14/2020 09:55 ICP-MS4 112018SMPL.d 195425

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 0.22 0.10 1 03/11/2020 22:11

Analyst(s): ND

L-17,18,19,10 2002557-024A Soil 02/14/2020 10:10 ICP-MS4 112019SMPL.d 195425

Analytes Result DF Date AnalyzedRL

Client ID Lab ID Matrix Date Collected Instrument Batch ID

Lead 0.43 0.10 1 03/11/2020 22:14

Analyst(s): ND

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client: Atlas Environmental Consulting, LLC

Project: 20021; NPS-Building 112

Date Analyzed: 03/12/2020 Date Prepared: 03/10/2020

WorkOrder: 2002557 BatchID: 195427

Analytical Method: SW6020 Unit: mg/L Sample ID: MB/LCS/LCSD-195427

Instrument: ICP-MS4 Matrix: Soil

Extraction Method: CA Title 22

QC Summary Report for Metals (STLC)

Analyte MB Result

MDL RL

Lead ND 0.100 0.100 - - -

Analyte LCS Result

LCSD

Result

SPK

Val

LCS

%REC

LCSD

%REC

LCS/LCSD

Limits

RPD RPD

Limit

Lead 9.70 9.32 10 97 93 75-125 4.04 20

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts"

Client: Atlas Environmental Consulting, LLC

Project: 20021; NPS-Building 112

Date Analyzed: 03/11/2020 Date Prepared: 03/10/2020

WorkOrder: 2002557 BatchID: 195425

Analytical Method: SW6020 Unit: mg/L Sample ID: MB/LCS/LCSD-195425

Instrument: ICP-MS4 Matrix: Soil

Extraction Method: SW1311/SW3010

QC Summary Report for Metals (TCLP)

Analyte MB Result

MDL RL

Lead ND 0.100 0.100 - - -

Analyte LCS Result

LCSD

Result

SPK

Val

LCS

%REC

LCSD

%REC

LCS/LCSD

Limits

RPD RPD

Limit

Lead 9.90 9.90 10 99 99 75-125 0.0606 20

Pittsburg, CA 94565-1701

(925) 252-9262

CHAIN-OF-CUSTODY RECORD Page

Lab ID Matrix Collection Date Hold

Requested Tests (See legend below)

Report to:

Rob Delnagro

160 Skyview Place Vacaville, CA 95687

FAX:

PO:

02/14/2020

Client ID

Project: 20021; NPS-Building 112

WorkOrder: 2002557

Date Logged:

Date Received: 02/14/2020

1 2 3 4 5 6 7 8 9 10 11 12

Atlas Environmental Consulting, LLC

Bill to:

Accounts Payable Atlas Environmental Consulting, LLC 160 Skyview Place Vacaville, CA 95687

Requested TAT: 5 days;

Date Add-On: 03/09/2020

ClientCode: AECV

Email: rob.delnagro@atlas-env.com

EDF EQuIS Email HardCopy ThirdParty

A Excel J-flagWriteOn cc/3rd Party:

WaterTrax

Detection Summary Dry-Weight

2002557-005 Solid 2/14/2020 09:37L-5 A 2002557-021 Soil 2/14/2020 09:35L-1,2,3,4 A

A2002557-022 Soil 2/14/2020 09:46L-6,9 2002557-023 Soil 2/14/2020 09:55L-7,8,10,11,12,13 A A 2002557-024 Soil 2/14/2020 10:10L-17,18,19,10 A

A2002557-025 Soil 2/14/2020 10:04L-15,16

Prepared by: Lilly Ortiz

NOTE: Soil samples are discarded 60 days after results are reported unless other arrangements are made (Water samples are 30 days).

Hazardous samples will be returned to client or disposed of at client expense.

Comments: STLC & TCLPs added 3/9/20 STAT.

PBMS_STLC_S PBMS_TCLP_S PR6PTCOMP1 2 3 4

5 6 7 8

9 10 11 12

Test Legend:

Add-On Prepared By: Maria Venegas

Date Logged:

TATMatrix Test Name Containers /Composites

WORK ORDER SUMMARY

Work Order: 2002557

Comments: STLC & TCLPs added 3/9/20 STAT.

Client Name: ATLAS ENVIRONMENTAL CONSULTING, LLC Project: 20021; NPS-Building 112 QC Level: LEVEL 2

Hold SubOutBottle & Preservative

2/14/2020

Sediment Content

3/9/2020Date Add-On:

Rob DelnagroClient Contact:

rob.delnagro@atlas-env.comContact's Email

McCampbell Analytical, Inc.

1534 Willow Pass Road, Pittsburg, CA 94565-1701

Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail:…