Attachment 5.7 - B1406 HTRW.pdf

2021 Wake Island HTRW Survey

Facility: 1406 Condition: Significantly Damaged Vehicle Maintenance Shop Utilization: In use (storage) Size: 4000 Square Feet Year Built: 1959

Construction: Exterior is steel frame/corrugated metal and transite siding. The roof is pitched corrugated metal. The roof has major damage to sheeting and purlins and major leaks exist.

Building was severely damaged by Typhoon Loke and only very minimal repairs have been done since. Half of the siding is missing. Corrugated metal roof panels are missing. Steel columns are badly corroded, bent, and twisted. Some are completed rusted off at the base. Most of the roof and wall purlins are damaged, broken, or badly corroded. All electrical and lighting systems, air piping systems, overhead hoists, and other shop equipment are corroded or badly damaged. Office space is badly water damaged. A map of the building location can be seen in Appendix 1.

Building 1406

Number of Stories: 2 Heat System Type: None Fuel Tanks: N/A PCB Painted Concrete: N/A Concrete in Foundation/Walls: 215 Cubic Yards Other Debris: 849 Cubic Yards

Asbestos Found in Building 1406 (estimated quantities)

Skimcoat: 5,561 Square Feet Roofing Tar: 47 Square Feet Metal Roofing and Siding: 9,186 Square Feet

The paint/primer on metal siding is ACM.

Asbestos samples were not collected in 2021. Results from 2010 are provided in Appendix 4.

Lead and PCB Paint Found in Building 1406

LBP or coatings were identified in the following:

Door Jam 21 Square Feet Structural Steel 3,489 Square Feet Covebase (Wood) 26 Square Feet Floor Stripping 76 Square Feet Louvre 54 Square Feet Vent Pipe 24 Linear Feet

The following table shows paint samples collected in 2021 and analyzed for lead, toxicity characteristic leaching procedure (TCLP) lead, and polychlorinated biphenyls (PCBs). Complete 2021 results are provided in Appendix 3.

Sample # Location Lead

(total, mg/kg) TCLP Lead

(mg/L) PCBs

(mg/kg) Regulatory value: 5,000 5 50

W1406-001LP yellow stripe on floor 1,020,000 NA 1.038 W1406-002LP beige and silver 2,410 NA 0.343 W1406-003T yellow stripe on floor NA ND NA

ND - Non-Detect NA - Not Analyzed mg – milligrams kg – kilograms L – Liter Highlighted cells exceed corresponding regulatory value

One TCLP sample was collected from the representative waste stream and was less than Resource Conservation and Recovery Act (RCRA) landfill limits. Toxicity characteristic for lead is defined in 40 CFR 261.24.

Overall, PCBs in paint do not appear to be an environmental concern. Paint on metal does not constitute a leachability hazard and therefore all metal materials with PCB amended paint can be readily landfilled in an EPA permitted landfill per 40CFR 761.62(b). The highest concentration of total PCBs from the 2021 sampling event was 1.038 mg/kg (2021 Sample ID W1406-001LP).

XRF results from 2010 are provided in Attachment 4.

Other Potentially Hazardous Materials found in Building 1406 (estimated quantities)

Air Conditioning Units: 1 each Fluorescent Light Bulbs: 16 each Ballasts for Fluorescent Lights: 8 each Mercury Lights: 11 each

Photo 1: Structural steel contains lead-based paint. Photo 2: Metal roof panels missing.

Photo 3: Trace amount of PCB in yellow paint. Photo 4: Open bay with two stories attached.

Photo 5: Roof panels contain asbestos. Photo 6: Water damage to wood ceiling.

Appendix 1: Maps and Site Figures

From 2021

Figure 1:

Site Location and

Vicinity Building Location

See Inset A

Inset A

Building 1406

Figure 2:

Building 1406 Dimensions

Building 1406 Dimensions

Appendix 2: Asbestos Sample Results From 2021

- No asbestos samples were taken as previous results deemed sufficient.

Asbestos Sample Results B1406- A

Asbestos samples were not collected in 2021.

Appendix 3: Lead and PCB Sample Results

From 2021

DOD-QSM Cover Sheet

Wake Island HTRW

March 15, 2021

GEL Laboratories, LLC 2040 Savage Road Charleston, South Carolina 29407

(843) 556-8171

Project Manager: Valerie Davis Phone Extension: 4485 Email: Valerie.Davis@gel.com

Contract Purchase Order: New

Work Order: 536296 SDG: 536296

Client Contact:

Sean Benjamin U.S. Army Engineer District, AK (W911KB17A0011) PO Box 6898 Elmendorf Afb, Alaska 99506

Project Identification: Wake Island HTRW

Sample analyses were conducted using methodology as outlined in GEL Laboratories, LLC (GEL) Standard Operating Procedures. Test results for NELAP or ISO 17025 accredited tests are verified to meet the requirements of those standards, with any exceptions noted. The results reported relate only to the items tested and to the sample as received by the laboratory. These results may not be reproduced except as full reports without approval by the laboratory. Copies of GEL’s accreditations and certifications can be found on our website at www.gel.com.

GEL appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on March 01, 2021. This original data report has been prepared and reviewed in accordance with GEL’s standard operating procedures. If you have any questions, please do not hesitate to contact me at the phone number or e-mail address listed above.

Sincerely, PM_SIGN_HERE

Valerie Davis Project Manager

Meredith Boddiford for

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Case Narrative

Page 3 of 1049 SDG: 536296

DODQSM Case Narrative for

U.S. Army Engineer District, AK (W911KB17A0011)

SDG: 536296

March 15, 2021

Laboratory Identification:

GEL Laboratories LLC 2040 Savage Road Charleston, South Carolina 29407

(843) 556-8171

Summary

Sample Receipt The samples arrived at GEL Laboratories LLC, Charleston, South Carolina on March 01, 2021 for analysis. The samples were delivered with proper chain of custody documentation and signatures. All sample containers arrived without any visible signs of tampering or breakage. There are no additional comments concerning sample receipt.

Sample Identification The laboratory received the following samples:

Laboratory ID Client ID

536296001 W1306-002LP

536296002 W1306-003LP

536296003 W1306-004LP

536296004 W1306-005LP

536296005 W1306-006LP

536296006 W1306-009LP

536296007 W1307-015LP

536296008 W1307-016LP

536296009 W1307-017LP

536296010 W1307-020L 536296011 W1307-021T 536296012 W1310-001T

536296013 W1310-003LP

536296014 W1310-004L

536296015 W1406-001LP

536296016 W1406-002LP

536296017 W1406-003T

536296018 W1407-100LP

536296019 W1407-101LP

536296020 W1407-001T

Page 4 of 1049 SDG: 536296

The enclosed data package contains the following sections: General Narrative, Chain of Custody and Supporting Documentation, and data from the following fractions: GC Semivolatile PCB and Metals.

PM_SIGN_HERE

Valerie Davis Project Manager

Meredith Boddiford for

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Chain of Custody and Supporting

Documentation

Page 6 of 1049 SDG: 536296

Page 7 of 1049 SD G

: 536296

Page 8 of 1049 SDG: 536296

State Certification Alabama Alaska

Alaska Drinking Water Arkansas

CLIA

California Colorado

Connecticut DoD ELAP/ ISO17025 A2LA

Florida NELAP Foreign Soils Permit

Georgia Georgia SDWA

Hawaii Idaho

Illinois NELAP Indiana

Kansas NELAP Kentucky SDWA

Kentucky Wastewater Louisiana Drinking Water

Louisiana NELAP Maine

Maryland Massachusetts

Massachusetts PFAS Approv Michigan

Mississippi Nebraska Nevada

New Hampshire NELAP New Jersey NELAP

New Mexico New York NELAP

North Carolina North Carolina SDWA

North Dakota Oklahoma

Pennsylvania NELAP Puerto Rico

S. Carolina Radiochem Sanitation Districts of L

South Carolina Chemistry Tennessee

Texas NELAP Utah NELAP

Vermont Virginia NELAP

Washington

42200 17−018

SC00012

88−0651

42D0904046

SC00012

PH−0169

2567.01 E87156

P330−15−00283, P330−15−00253

SC00012

SC00012

SC00012

200029

C−SC−01

E−10332

90129 90129

LA024

03046 (AI33904)

2019020

M−SC012

Letter

SC00012

NE−OS−26−13

SC000122021−1

SC002

SC00012

11501

45709 R−158

2019−165 68−00485

SC00012

10120002 9255651 10120001

TN 02934

T104704235−21−19

SC000122020−34

VT87156

460202 C780

List of current GEL Certifications as of 15 March 2021

Page 9 of 1049 SDG: 536296

PCB Analysis

Page 10 of 1049 SDG: 536296

Page 11 of 1049 SDG: 536296

GC Semivolatile PCB Technical Case Narrative

U.S. Army Engineer District, AK

SDG #: 536296

Product: Analysis of The Analysis of Polychlorinated Biphenyls by GC/ECD by ECD Analytical Method: SW846 3541/8082A Analytical Procedure: GL-OA-E-040 REV# 25 Analytical Batch: 2100377

Preparation Method: SW846 3541 Preparation Procedure: GL-OA-E-066 REV# 9 Preparation Batch: 2100375

The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification

536296007 W1307-015LP

536296008 W1307-016LP

536296009 W1307-017LP

1204768615 Method Blank (MB) 1204768616 Laboratory Control Sample (LCS) 1204768619 536828001(NonSDG) Matrix Spike (MS) 1204768620 536828001(NonSDG) Matrix Spike Duplicate (MSD)

The samples in this SDG were analyzed on an "as received" basis.

Data Summary:

All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions.

Quality Control (QC) Information

Surrogate Recoveries Samples (See Below) did not meet acceptance criteria for surrogate recovery due to sample matrix interference.

Sample Analyte Value

536296007 (W1307-015LP)Decachlorobiphenyl175* (24%-138%)

536296008 (W1307-016LP)4cmx 149* (44%-130%)

Decachlorobiphenyl229* (24%-138%)

Decachlorobiphenyl708* (24%-138%)

Technical Information

Preparation/Analytical Method Verification All samples and QC in this batch were cleaned using alumina in order to remove oil and other high molecular weight interferences. All samples and QC in this batch were cleaned with activated copper in order to remove

Page 12 of 1049 SDG: 536296 sulfur. All reported analyte detections in client and quality control samples were within the established retention time windows. Reported analyte concentrations were confirmed on dissimilar columns.

Sample Dilutions Sample 536296008 (W1307-016LP) was diluted due to high level of non-target analytes within the retention time window of interest.

Sample Re-extraction/Re-analysis Sample 536296013 (W1310-003LP) was re-extracted due to surrogate failure.

Miscellaneous Information

Manual integrations Samples 1204768615 (MB), 1204768616 (LCS), 1204768619 (Non SDG 536828001MS), 1204768620 (Non SDG 536828001MSD), 536296007 (W1307-015LP), 536296008 (W1307-016LP), 536296009 (W1307-017LP) and 536296013 (W1310-003LP) required manual integration to correctly position the baseline as set in the calibration standard injections.

Additional Comments The column 1 has been chosen as the primary column. The data are reported from the column 1 for all samples in this batch.

Analytical Procedure: GL-OA-E-040 REV# 25 Analytical Batch: 2100382

Preparation Method: SW846 3541 Preparation Procedure: GL-OA-E-066 REV# 9 Preparation Batch: 2100380

The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification

536296001 W1306-002LP

536296002 W1306-003LP

536296003 W1306-004LP

1204768630 Method Blank (MB) 1204768631 Laboratory Control Sample (LCS) 1204768632 Laboratory Control Sample Duplicate (LCSD)

The samples in this SDG were analyzed on an "as received" basis.

Data Summary:

All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions.

Quality Control (QC) Information

Surrogate Recoveries Sample (See Below) recovered above the acceptance limits for the surrogate. The sample results were not adversely affected as the sample was not detected with Aroclors above the PQL.

Page 13 of 1049 SDG: 536296

Sample Analyte Value

536296002 (W1306-003LP)Decachlorobiphenyl1310* (24%-138%)

Laboratory Control Sample (LCSD) An LCSD was used in place of matrix QC due to limited sample volume.

Technical Information

Preparation/Analytical Method Verification All samples and QC in this batch were cleaned using alumina in order to remove oil and other high molecular weight interferences. All samples and QC in this batch were cleaned with activated copper in order to remove sulfur. All reported analyte detections in client and quality control samples were within the established retention time windows. Reported analyte concentrations were confirmed on dissimilar columns.

Sample Dilutions Samples 536296001 (W1306-002LP) and 536296002 (W1306-003LP) were diluted due to high level of non-target analytes within the retention time window of interest.

Miscellaneous Information

Manual integrations Samples 1204768631 (LCS), 1204768632 (LCSD), 536296001 (W1306-002LP), 536296002 (W1306-003LP), 536296003 (W1306-004LP) and All required manual integration to correctly position the baseline as set in the calibration standard injections.

Additional Comments The lower results from either column have been chosen and reported in the data package for the client samples, MB and LCS. The data reported for the MS/MSD are from the same analytical column as the parent sample.

Analytical Procedure: GL-OA-E-040 REV# 25 Analytical Batch: 2100591

Preparation Method: SW846 3541 Preparation Procedure: GL-OA-E-066 REV# 9 Preparation Batch: 2100588

The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification

536296004 W1306-005LP

536296005 W1306-006LP

536296006 W1306-009LP

536296015 W1406-001LP

536296016 W1406-002LP

536296018 W1407-100LP

536296019 W1407-101LP

1204769083 Method Blank (MB) 1204769084 Laboratory Control Sample (LCS) 1204769085 Laboratory Control Sample Duplicate (LCSD)

Page 14 of 1049 SDG: 536296

The samples in this SDG were analyzed on an "as received" basis.

Data Summary:

All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions.

Quality Control (QC) Information

Laboratory Control Sample (LCSD) An LCSD was used in place of matrix QC due to limited sample volume.

Technical Information

Preparation/Analytical Method Verification All samples and QC in this batch were cleaned using alumina in order to remove oil and other high molecular weight interferences. All samples and QC in this batch were cleaned with activated copper in order to remove sulfur. All reported analyte detections in client and quality control samples were within the established retention time windows. Reported analyte concentrations were confirmed on dissimilar columns.

Sample Dilutions Samples 536296004 (W1306-005LP), 536296005 (W1306-006LP), 536296006 (W1306-009LP), 536296015 (W1406-001LP), 536296016 (W1406-002LP) and 536296018 (W1407-100LP) were diluted due to high level of non-target analytes within the retention time window of interest.

Miscellaneous Information

Manual integrations Samples 1204769084 (LCS), 1204769085 (LCSD), 536296004 (W1306-005LP), 536296005 (W1306-006LP), 536296006 (W1306-009LP), 536296015 (W1406-001LP), 536296016 (W1406-002LP) and 536296018 (W1407-100LP) required manual integration to correctly position the baseline as set in the calibration standard injections and to properly identify one or more peaks.

Analytical Procedure: GL-OA-E-040 REV# 25 Analytical Batch: 2101722

Preparation Method: SW846 3541 Preparation Procedure: GL-OA-E-066 REV# 9 Preparation Batch: 2101721

The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification

536296013 W1310-003LP

1204771176 Method Blank (MB) 1204771177 Laboratory Control Sample (LCS) 1204771594 537268001(NonSDG) Matrix Spike (MS) 1204771595 537268001(NonSDG) Matrix Spike Duplicate (MSD)

The samples in this SDG were analyzed on an "as received" basis.

Page 15 of 1049 SDG: 536296

Data Summary:

All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions.

Technical Information

Preparation/Analytical Method Verification All samples and QC in this batch were cleaned using alumina in order to remove oil and other high molecular weight interferences. All samples and QC in this batch were cleaned with activated copper in order to remove sulfur. All reported analyte detections in client and quality control samples were within the established retention time windows. Reported analyte concentrations were confirmed on dissimilar columns.

Sample Dilutions The samples were diluted due to dark and thick sample extracts. 536296013 (W1310-003LP).

Miscellaneous Information

Additional Comments The column 1 has been chosen as the primary column. The data are reported from the column 1 for all samples in this batch.

Certification Statement

Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative.

Page 16 of 1049 SDG: 536296

GEL LABORATORIES LLC

2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com

ACAK005 U.S. Army Engineer District, AK (W911KB17A0011)

Client SDG: 536296 GEL Work Order: 536296

GEL requires all analytical data to be verified by a qualified data reviewer. In addition, all CLP-like deliverables receive a third level review of the fractional data package.

The following data validator verified the information presented in this data report:

The Qualifiers in this report are defined as follows:

* Indicates that a quality control analyte recovery is outside of specified acceptance criteria.

** Indicates the analyte is a surrogate compound.

J Indicates an estimated value. The result was greater than the detection limit, but less than the reporting limit or indicates that the analyte recovery in the MS or MSD is outside of specified acceptance criteria or the response between the confirmation column and the primary column is >40%D.

Q LCS recovery not within control limits U Indicates the target analyte was analyzed for but not detected above the detection limit.

for

DL Indicates that sample is diluted.

RA Indicates that sample is re-analyzed without re-extraction.

RE Indicates that sample is re-extracted.

Qualifier Definition Report

Signature: Name:

Date: Title:15 MAR 2021

Cameron Bearden

Group Leader

Review/Validation

Page 17 of 1049 SDG: 536296

Sample Data Summary

Page 18 of 1049 SDG: 536296

GEL Laboratories LLC

PCB

Certificate of Analysis

Sample Summary

March 15, 2021Report Date:

SDG Number: 536296

Lab Sample ID: 536296018 Matrix: P

Date Received: 03/01/2021 09:15

Date Collected: 02/16/2021 09:20

12674-11-2

11104-28-2

11141-16-5

53469-21-9

12672-29-6

11097-69-1

11096-82-5

Aroclor-1016

Aroclor-1221

Aroclor-1232

Aroclor-1242

Aroclor-1248

Aroclor-1254

Aroclor-1260

0.622

0.622

0.622

0.622

0.622

0.622

0.622

U

U

U

U

U

U

U

0.311

0.311

0.311

0.311

0.311

0.311

0.311

0.935

0.935

0.935

0.935

0.935

0.935

0.935

Client: ACAK005 Project: ACAK00500

CAS No. Parmname ResultQualifier MDL LOQ

Method: SW846 3541/8082A GL-OA-E-040

Batch ID: 2100591 Inst: ECD8A.I Dilution: 10 SOP Ref:

Run Date: 03/12/2021 14:41 Analyst: JXM 1 uLInj. Vol:

Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

W1407-100LPClient ID:

Prep Date: Aliquot: Final Volume:03/11/2021 07:34 1.07 g 1 mL

Column

Column:031221.b\e8c1237.D

031221.b\e8c1237.D

Data File: 1 Description: RTX-CLP

2 PEST2

LOD

0.622

0.622

0.622

0.622

0.622

0.622

0.622

Page 31 of 1049 SDG: 536296

GEL Laboratories LLC

PCB

Certificate of Analysis

Sample Summary

March 15, 2021Report Date:

SDG Number: 536296

Lab Sample ID: 536296019 Matrix: P

Date Received: 03/01/2021 09:15

Date Collected: 02/16/2021 09:25

12674-11-2

11104-28-2

11141-16-5

53469-21-9

12672-29-6

11097-69-1

11096-82-5

Aroclor-1016

Aroclor-1221

Aroclor-1232

Aroclor-1242

Aroclor-1248

Aroclor-1254

Aroclor-1260

0.888

0.888

0.888

0.888

0.888

0.888

0.888

U

U

U

U

U

U

U

0.444

0.444

0.444

0.444

0.444

0.444

0.444

1.33

1.33

1.33

1.33

1.33

1.33

1.33

Client: ACAK005 Project: ACAK00500

CAS No. Parmname ResultQualifier MDL LOQ

Method: SW846 3541/8082A GL-OA-E-040

Batch ID: 2100591 Inst: ECD8A.I Dilution: 10 SOP Ref:

Run Date: 03/12/2021 15:01 Analyst: JXM 1 uLInj. Vol:

Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

W1407-101LPClient ID:

Prep Date: Aliquot: Final Volume:03/11/2021 07:34 .75 g 1 mL

Column

Column:031221.b\e8c1238.D

031221.b\e8c1238.D

Data File: 1 Description: RTX-CLP

2 PEST2

LOD

0.888

0.888

0.888

0.888

0.888

0.888

0.888

Page 32 of 1049 SDG: 536296

Metals Analysis

Page 782 of 1049 SDG: 536296

Page 783 of 1049 SDG: 536296

Metals Technical Case Narrative

U.S. Army Engineer District, AK

SDG #: 536296

Product: Determination of Metals by ICP-MS Analytical Method: SW846 3050B/6020B Analytical Procedure: GL-MA-E-014 REV# 34 Analytical Batch: 2098264

Product: Determination of Metals by ICP-MS Analytical Method: SW846 3010/6020 Analytical Procedure: GL-MA-E-014 REV# 34 Analytical Batch: 2099636

TCLP Preparation Method: SW846 1311 TCLP Preparation Procedure: GL-LB-E-006 REV# 22 TCLP Preparation Batch: 2099080

Composite Preparation Method: GEL Prep Method Composite Preparation Procedure: GL-RAD-A-026 REV# 18 Composite Preparation Batch: 2098198

Preparation Method: SW846 3050B Preparation Procedure: GL-MA-E-009 REV# 29 Preparation Batch: 2098263

Preparation Method: SW846 3010A Preparation Procedure: GL-MA-E-008 REV# 19 Preparation Batch: 2099635

The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification

536296001 W1306-002LP

536296002 W1306-003LP

536296003 W1306-004LP

536296004 W1306-005LP

536296005 W1306-006LP

536296006 W1306-009LP

536296007 W1307-015LP

536296008 W1307-016LP

536296009 W1307-017LP

536296010 W1307-020L 536296012 W1310-001T

536296013 W1310-003LP

536296014 W1310-004L

536296015 W1406-001LP

536296016 W1406-002LP

536296017 W1406-003T

Page 784 of 1049 SDG: 536296

536296018 W1407-100LP

536296019 W1407-101LP

536296020 W1407-001T 1204765842 Tumble Blank (TB) 1204765843 536292008(W1504-006TS) Matrix Spike (MS) 1204764231 Method Blank (MB)ICP-MS 1204767016 Method Blank (MB)ICP-MS 1204764232 Laboratory Control Sample (LCS) 1204767017 Laboratory Control Sample (LCS) 1204764235 536296001(W1306-002LPL) Serial Dilution (SD) 1204767019 536292008(W1504-006TL) Serial Dilution (SD) 1204767018 536292008(W1504-006TD) Sample Duplicate (DUP) 1204764233 536296001(W1306-002LPS) Matrix Spike (MS) 1204765843 536292008(W1504-006TS) Matrix Spike (MS) 1204764234 536296001(W1306-002LPSD) Matrix Spike Duplicate (MSD)

The samples in this SDG were analyzed on an "as received" basis.

Data Summary:

All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions.

Calibration Information

ICSA/ICSAB Statement For the ICP-MS analysis, the ICSA solution contains analyte concentrations which are verified trace impurities indigenous to the purchased standard.

Quality Control (QC) Information

MS/MSD Relative Percent Difference (RPD) Statement The RPD values between qualifying analyte results in the MS and MSD were not within the acceptance limits. Sample non-homogeneity and/or possible matrix interferences may be suspected.

Sample Analyte Value

1204764233MS and 1204764234MSD (W1306-002LP) Lead RPD 20.1* (0%-20%)

Technical Information

Preparation/Analytical Method Verification Method SW-846 3050B is not a total digestion technique for most samples. It is a very strong acid digestion that will dissolve almost all elements that could become environmentally available. By design, elements bound in silicate structures are not normally dissolved by this procedure as they are not usually mobile in the environment.

Sample Dilutions Dilutions may be required for many reasons, including to minimize matrix interferences or to bring over range target analyte concentrations into the linear calibration range. Samples 536296001 (W1306-002LP), 536296002 (W1306-003LP), 536296003 (W1306-004LP), 536296005 (W1306-006LP), 536296006 (W1306-009LP), 536296007

Page 785 of 1049 SDG: 536296

(W1307-015LP), 536296008 (W1307-016LP), 536296010 (W1307-020L), 536296013 (W1310-003LP), 536296014 (W1310-004L), 536296015 (W1406-001LP), 536296016 (W1406-002LP), 536296018 (W1407-100LP) and 536296019 (W1407-101LP)-ICP-MS were diluted to ensure that the analyte concentrations were within the linear calibration range of the instrument. The ICPMS solid samples in this SDG were diluted the standard two times.

ICP-MS.

Analyte 536296

001 002 003 004 005 006 007 008 009 010

Lead 40X 40X 10X 2X 1000X 200X 200X 100X 2X 20X

Analyte 536296

013 014 015 016 018 019

Lead 100X 10X 10000X 500X 10X 100X

Preparation Information The extracted samples and associated matrix QC were prepared at a ten times or greater dilution factor to minimize potential interferences from leached or filtered extracts. ICP-MS.

Certification Statement

Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative.

Page 786 of 1049 SDG: 536296

GEL LABORATORIES LLC

2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com

ACAK005 U.S. Army Engineer District, AK (W911KB17A0011)

Client SDG: 536296 GEL Work Order: 536296

GEL requires all analytical data to be verified by a qualified data reviewer. In addition, all CLP-like deliverables receive a third level review of the fractional data package.

The following data validator verified the information presented in this data report:

The Qualifiers in this report are defined as follows:

J Indicates an estimated value. The result was greater than the detection limit, but less than the reporting limit or indicates that the analyte recovery in the MS or MSD is outside of specified acceptance criteria.

U Indicates the target analyte was analyzed for but not detected above the detection limit.

for Qualifier Definition Report

Signature: Name:

Date: Title:15 MAR 2021

Jamie Johnson

Group Leader

Review/Validation

Page 787 of 1049 SDG: 536296

Sample Data Summary

Page 788 of 1049 SDG: 536296

METALS

−1−

INORGANICS ANALYSIS DATA PACKAGE

GEL Laboratories LLC

SW846

SDG No: METHOD TYPE:

SAMPLE ID: CLIENT ID:

CONTRACT:

MATRIX: DATE RECEIVED LEVEL: %SOLIDS:

CAS No. Analyte Result Units C Qual M* Instrument

ID

Analytical

Run

Low

536296

536296018 W1407−100LP

ACAK00500

MISC SOLID 01−MAR−21

7439−92−1 Lead 1010 mg/kg 0.496 ICPMS14J MS 210312−3

SW846

MDL DF

100.992

LOD

1.98

LOQ

*Analytical Methods:

MS SW846 3050B/6020B

Page 805 of 1049 SDG: 536296

INORGANICS ANALYSIS DATA PACKAGE

GEL Laboratories LLC

SW846

SDG No: METHOD TYPE:

SAMPLE ID: CLIENT ID:

CONTRACT:

MATRIX: DATE RECEIVED LEVEL: %SOLIDS:

CAS No. Analyte Result Units C Qual M* Instrument

ID

Analytical

Run

Low

536296

536296019 W1407−101LP

ACAK00500

MISC SOLID 01−MAR−21

7439−92−1 Lead 19500 mg/kg 4.65 ICPMS14J MS 210312−3

SW846

MDL DF

1009.29

LOD

18.6

LOQ

*Analytical Methods:

MS SW846 3050B/6020B

Page 806 of 1049 SDG: 536296

INORGANICS ANALYSIS DATA PACKAGE

GEL Laboratories LLC

SW846

SDG No: METHOD TYPE:

SAMPLE ID: CLIENT ID:

CONTRACT:

MATRIX: DATE RECEIVED LEVEL: %SOLIDS:

CAS No. Analyte Result Units C Qual M* Instrument

ID

Analytical

Run

Low

536296

536296020 W1407−001T

ACAK00500

TCLP 01−MAR−21

7439−92−1 Lead 0.0100 mg/L 0.00500 ICPMS11U MS 210309−1

SW846

MDL DF

10.0100

LOD

0.0200

LOQ

*Analytical Methods:

MS SW846 3010/6020

Page 807 of 1049 SDG: 536296

Appendix 4: Older Sampling Locations

2010 Sampling Asbestos Results XRF Results

25-May-10

25-May-10

25-May-10

25-May-10

25-May-10

25-May-10

25-May-10

25-May-10

25-May-10

25-May-10

25-May-10

25-May-10

Date Sampled

Bldg.

ABWIA1406013

ABWIA1406012

ABWIA1406011

ABWIA1406010

ABWIA1406009

ABWIA1406008

ABWIA1406007

ABWIA1406006

ABWIA1406005

ABWIA1406004

ABWIA1406003

ABWIA1406002

ABWIA1406001

Sample Number

A-Side Int. Room 1

D-Side Ext.

D-Side Ext.

C-Side Ext.

C-Side Ext.

C-Side Ext.

C-Side Ext.

B-Side Ext.

A-Side Ext.

B-Side Ext.

A-Side Ext.

A-Side Ext.

A-Side Ext.

Sample Location

Paint under coating

Paint under coating

Paint under coating

Shingle

Roof Tar

Roof Caulking

Shingle

Paint under coating

Cement

Paint under coating

Paint under coating

Cement

Paint under coating

Sample Description

Grey

Silver

Silver

White

Black

Black

Green

White

Grey

Grey

White

Grey

Grey

Color

Yes

Yes

Yes

No

Yes

No

No

Yes

No

Yes

Yes

No

Yes

Asbestos

2%Chrys-PT-<1%

2%Chrys-PT-<1%

3%Chrys -PT-<1%Chrys

N/A

PT-<1%Chrys

N/A

N/A

2%Chrys-PT-<1%

N/A

3%Chrys-PT-<1%

2%Chrys-PT-<1%

N/A

5%Chrys

Asbestos Type

2010 Asbestos Quick Sample Results Log

25-May-10

25-May-10

25-May-10

25-May-10

Date Sampled

Bldg. 1406

Sample Number

ABWIA1406014

ABWIA1406015

ABWIA1406016

ABWIA1406017

ABWIA1406018

ABWIA1406019

C-Side Int. Mezzinine

A-Side Int. Bathroom

C-Side Int. Tire Room 2

Ceiling Int. Room 2

A-Side Int. Mezzinine

A-Side Int. Room 1

Sample Location Sample Description

Expansion Joint

Pressed Wood Ceiling

Pressed Wood Ceiling

Skimcoat

Sheetrock

Pressed Wood White

White

White

Brown

White

Black

Color

No

No

No

No

No

Yes

Asbestos Asbestos Type

3%Chrys-PT-<1%

N/A

N/A

N/A

N/A

N/A

2010 Asbestos Quick Sample Results Log

XRF Results from 2010