140L5726Q0005_Attachment_003_Tooele_SEAT_Base_Soil_Testing_Results_8_2025.pdf

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Former Tooele SEAT Base Aggregate Replacement
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140L5726Q0005
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This is a laboratory analytical report documenting soil contamination testing conducted by Chemtech-Ford Laboratories for the Bureau of Land Management (BLM) West Desert District. The work order (25H1825) covers the Tooele Airport Soil Cleanup project, with samples collected on August 20, 2025, and the report approved on August 27, 2025. The laboratory performed analyses in accordance with the National Environmental Laboratory Accreditation Program (NELAP) standards.

Three soil samples were analyzed from different locations at Tooele Airport: sample 25H1825-01 from grid location 10 N 7 E, sample 25H1825-02 from 63 N 4 W, and sample 25H1825-03 from the airport background area. Testing included inorganic parameters (total solids and nitrate/nitrite levels), metals analysis (arsenic, barium, cadmium, chromium, lead, mercury, phosphorus, selenium, and silver), and Toxicity Characteristic Leaching Procedure (TCLP) metals testing. Results show total phosphorus levels significantly elevated across all samples (15,300 mg/kg, 15,900 mg/kg, and 961 mg/kg respectively), with background sample nitrate levels at 139 mg/kg substantially higher than the other two site samples. Most tested metals were either not detected or below EPA Maximum Contaminant Levels, with the background sample showing detectable arsenic (5.13 mg/kg) and elevated barium (173 mg/kg). All TCLP metals testing results were non-detectable or well below regulatory thresholds, indicating the soil samples do not exhibit hazardous waste characteristics under federal standards.

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The analyses presented on this report were performed in accordance with the

National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered.

Client Service Contact: 801.262.7299

Bureau of Land Management - West Desert District

Attn: Jared Redington

491 N John Glenn Rd

Salt Lake City, UT 84116

Work Order: 25H1825

Project: Tooele Airport Soil Cleanup

8/27/2025

Approved By:

Andrew Royer, Project Manager

9632 South 500 West Sandy, Utah 84070

Serving the Intermountain West since 1953

801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com

Certificate of Analysis

25H1825-01Lab Sample No.:

Name:

Sample Site:

Sample Matrix:

Sample Date:

Receipt Date:

Sampler:

10 N 7 E

Solid client

8/20/2025 10:25 AM

8/20/2025 11:50 AM

Tooele Airport Soil Cleanup

Comments:

PO Number:

Project:

Source Code: Sample Point: Report to State:

System No.:

Bureau of Land Management - West Desert District

Minimum

Reporting

Limit Parameter

Sample

Result Units

Analytical

Method

Analysis

Date/Time Flag

Preparation

Date/Time

EPA Max

Contaminant

Level (MCL)

Inorganic

Total Solids 0.1 % 08/20/202508/20/2025 94.9 CTF8000

Nitrate + Nitrite, Soluble, as N 1.1 mg/kg dry 08/22/202508/22/2025 10.4 SM 4500 NO3- F

Metals

Arsenic, Total 4.49 mg/kg dry 08/21/202508/20/2025 ND EPA 6010D/3050B

Barium, Total 0.449 mg/kg dry 08/21/202508/20/2025 93.5 EPA 6010D/3050B

Cadmium, Total 0.449 mg/kg dry 08/21/202508/20/2025 14.7 EPA 6010D/3050B

Chromium, Total 0.449 mg/kg dry 08/21/202508/20/2025 96.0 EPA 6010D/3050B

Lead, Total 4.49 mg/kg dry 08/21/202508/20/2025 10.3 EPA 6010D/3050B

Mercury, Total 0.029 mg/kg dry 08/21/202508/20/2025 ND EPA 7471A

Phosphorus, Total as P 8.98 mg/kg dry 08/22/202508/20/2025 15300 EPA 6010D/3050B

Selenium, Total 2.69 mg/kg dry 08/21/202508/20/2025 ND EPA 6010D/3050B

Silver, Total 0.449 mg/kg dry 08/21/202508/20/2025 ND EPA 6010D/3050B

TCLP Metals

Arsenic, TCLP 0.50 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

Barium, TCLP 0.20 mg/L 08/22/202508/22/2025100ND EPA 6010D/3010A

Cadmium, TCLP 0.050 mg/L 08/22/202508/22/20251ND EPA 6010D/3010A

Chromium, TCLP 0.050 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

Lead, TCLP 0.20 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

Mercury, TCLP 0.0040 mg/L 08/22/202508/22/20250.2ND EPA 7470A

Selenium, TCLP 0.30 mg/L 08/22/202508/22/20251ND EPA 6010D/3010A

Silver, TCLP 0.05 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

9632 South 500 West

Sandy, UT 84070801-262-7299 Office www.ChemtechFord.com

25H1825-02Lab Sample No.:

Name:

Sample Site:

Sample Matrix:

Sample Date:

Receipt Date:

Sampler:

63 N 4 W

Solid client

8/20/2025 10:25 AM

8/20/2025 11:50 AM

Tooele Airport Soil Cleanup

Comments:

PO Number:

Project:

Source Code: Sample Point: Report to State:

System No.:

Bureau of Land Management - West Desert District

Minimum

Reporting

Limit Parameter

Sample

Result Units

Analytical

Method

Analysis

Date/Time Flag

Preparation

Date/Time

EPA Max

Contaminant

Level (MCL)

Inorganic

Total Solids 0.1 % 08/20/202508/20/2025 98.3 CTF8000

Nitrate + Nitrite, Soluble, as N 1.0 mg/kg dry 08/22/202508/22/2025 32.6 SM 4500 NO3- F

Metals

Arsenic, Total 4.42 mg/kg dry 08/21/202508/20/2025 ND EPA 6010D/3050B

Barium, Total 0.442 mg/kg dry 08/21/202508/20/2025 42.1 EPA 6010D/3050B

Cadmium, Total 0.442 mg/kg dry 08/21/202508/20/2025 9.52 EPA 6010D/3050B

Chromium, Total 0.442 mg/kg dry 08/21/202508/20/2025 74.7 EPA 6010D/3050B

Lead, Total 4.42 mg/kg dry 08/21/202508/20/2025 7.60 EPA 6010D/3050B

Mercury, Total 0.029 mg/kg dry 08/21/202508/20/2025 ND EPA 7471A

Phosphorus, Total as P 8.85 mg/kg dry 08/22/202508/20/2025 15900 EPA 6010D/3050B

Selenium, Total 2.65 mg/kg dry 08/21/202508/20/2025 ND EPA 6010D/3050B

Silver, Total 0.442 mg/kg dry 08/21/202508/20/2025 ND EPA 6010D/3050B

TCLP Metals

Arsenic, TCLP 0.50 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

Barium, TCLP 0.20 mg/L 08/22/202508/22/2025100ND EPA 6010D/3010A

Cadmium, TCLP 0.050 mg/L 08/22/202508/22/20251ND EPA 6010D/3010A

Chromium, TCLP 0.050 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

Lead, TCLP 0.20 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

Mercury, TCLP 0.0040 mg/L 08/22/202508/22/20250.2ND EPA 7470A

Selenium, TCLP 0.30 mg/L 08/22/202508/22/20251ND EPA 6010D/3010A

Silver, TCLP 0.05 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

9632 South 500 West

Sandy, UT 84070801-262-7299 Office

25H1825-03Lab Sample No.:

Name:

Sample Site:

Sample Matrix:

Sample Date:

Receipt Date:

Sampler:

Tooele Airport Background

Solid client

8/20/2025 10:25 AM

8/20/2025 11:50 AM

Tooele Airport Soil Cleanup

Comments:

PO Number:

Project:

Source Code: Sample Point: Report to State:

System No.:

Bureau of Land Management - West Desert District

Minimum

Reporting

Limit Parameter

Sample

Result Units

Analytical

Method

Analysis

Date/Time Flag

Preparation

Date/Time

EPA Max

Contaminant

Level (MCL)

Inorganic

Total Solids 0.1 % 08/20/202508/20/2025 97.9 CTF8000

Nitrate + Nitrite, Soluble, as N 34.3 mg/kg dry 08/22/202508/22/2025 139 SM 4500 NO3- F

Metals

Arsenic, Total 4.74 mg/kg dry 08/21/202508/20/2025 5.13 EPA 6010D/3050B

Barium, Total 0.474 mg/kg dry 08/21/202508/20/2025 173 EPA 6010D/3050B

Cadmium, Total 0.474 mg/kg dry 08/21/202508/20/2025 ND EPA 6010D/3050B

Chromium, Total 0.474 mg/kg dry 08/21/202508/20/2025 12.5 EPA 6010D/3050B

Lead, Total 4.74 mg/kg dry 08/21/202508/20/2025 13.4 EPA 6010D/3050B

Mercury, Total 0.027 mg/kg dry 08/21/202508/20/2025 ND EPA 7471A

Phosphorus, Total as P 0.95 mg/kg dry 08/21/202508/20/2025 961 EPA 6010D/3050B

Selenium, Total 2.85 mg/kg dry 08/21/202508/20/2025 ND EPA 6010D/3050B

Silver, Total 0.474 mg/kg dry 08/21/202508/20/2025 ND EPA 6010D/3050B

TCLP Metals

Arsenic, TCLP 0.50 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

Barium, TCLP 0.20 mg/L 08/22/202508/22/20251000.31 EPA 6010D/3010A

Cadmium, TCLP 0.050 mg/L 08/22/202508/22/20251ND EPA 6010D/3010A

Chromium, TCLP 0.050 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

Lead, TCLP 0.20 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

Mercury, TCLP 0.0040 mg/L 08/22/202508/22/20250.2ND EPA 7470A

Selenium, TCLP 0.30 mg/L 08/22/202508/22/20251ND EPA 6010D/3010A

Silver, TCLP 0.05 mg/L 08/22/202508/22/20255ND EPA 6010D/3010A

9632 South 500 West

Sandy, UT 84070801-262-7299 Office

Report Footnotes

Abbreviations

ND = Not detected at the corresponding Minimum Reporting Limit.

1 mg/L = one milligram per liter or 1 mg/Kg = one milligram per kilogram = 1 part per million.

1 ug/L = one microgram per liter or 1 ug/Kg = one microgram per kilogram = 1 part per billion.

1 ng/L = one nanogram per liter or 1 ng/Kg = one nanogram per kilogram = 1 part per trillion.

Values reported in RED exceed Primary Drinking Water standards.

Values reported in BLUE exceed Secondary Drinking Water standards.

BLANK values in the MCL column indicate no standard.

On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation.

Data Comparisons

9632 South 500 West

Sandy, UT 84070801-262-7299 Office

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