Attachment 1 - SOW.pdf

Date: 20 November 2025

Statement of Work (SOW)

Title: Analytical Chemistry to Verify Sorbent Performance

1.0 SCOPE

This acquisition supports the Coastal Operations Sciences branch, Code 71750's Environmental Security

Technology Certification Program (ESTCP) project #ER24-8303 titled: "Sorbent Onsite Testing Apparatus

(SOTA) for Rapid Evaluation of Novel Sorbents". This is a two-year project that is funded incrementally each fiscal year and, as such, this acquisition will have one additional option year in addition to the base year. The acquisition is for services to verify exposures in Per- and polyfluoroalkyl substances (PFAS)-impacted groundwater prior and after treatment. These analyses will be performed by a Department of Defense (DoD)

Environmental Lab Accreditation Program (ELAP) certified lab using the EPA 1633 method. In addition, measurements will be made in a subset of samples for total organic carbon following SM 5310C, total dissolved solids by EPA 160.1, and anions (Br-, Cl-, F-, NO3-, NO2-, PO4-, SO4-) using EPA 300.1. The contractor shall provide appropriate sampling containers in addition to performing the analytical chemistry. The Government anticipates providing samples incrementally in groups of approximately 20 every 2 weeks over a 30 – 60-day period.

2.0 BACKGROUND

PFAS are a concern at many DoD installations due primarily to the use of aqueous film-forming foam (AFFF) containing PFAS in firefighting training, although there are PFAS in areas that are not influenced by military activity as well. These chemicals represent significant financial liability for the DoD. As such, there is considerable effort in remediation of these contaminants in a wide variety of matrices, such as groundwater.

This study is evaluating the utility of NIWC-developed Sorbent Onsite Testing Apparatus using novel sorbents developed by the DoD. A total of two demonstrations will be performed, with each one demonstration per contract period. PFAS measurements in the water before and after treatment, as well as ancillary measurements, are critical to determine the success of the system.

3.0 APPLICABLE DOCUMENTS

3.1 USEPA, 2024. Method 1633A: Analysis of Per- and Polyfluoroalkyl Substances (PFAS) in Aqueous, Solid, Biosolids, and Tissue Samples by Liquid Chromatography-Tandem Mass Spectrometry (LC-

MS/MS). EPA 820-R-24-007.

3.2 DoD, 2023. Consolidated Quality Systems Manual (QSM) for Environmental Laboratories. DoD QSM

Version 6.0.

3.3 USEPA, 1993. Method 300.1: Determination of Inorganic Anions in Drinking Water by Ion

Chromatography.

3.4 USEPA, 1999. Method 160.1: Total Dissolved Solids.

3.5 Standard Methods. Method 5310C: Total Organic Carbon by Persulfate-UV or Heated-Persulfate

Oxidation.

4.0 TECHNICAL REQUIREMENTS

The following services shall be delivered by the contractor in both the base and option period, except as specified in 4.1.1 and 4.1.2. All analyses must conform to the analysis and reporting requirements in Draft

EPA Method 1633 and QSM 5.4. "Single" refers to 1 (predetermined) of the 10 PFAS compounds needs to be measured, whereas mix refers to all 10 PFAS compounds.

4.1 Number of Samples by Performance Period

4.1.1 Base Period

• PFAS Water Samples (EPA 1633A) - 108

• Total Organic Carbon (SM 5310C) - 12

• Total Dissolved Solids (EPA 160.1) - 12

• Anions (EPA 300.1; Target only: Br-, Cl-, F-, NO3-, NO2-, PO4-, SO4-) - 12

4.1.2 Option 1

• PFAS Water Samples - 108

• Total Organic Carbon - 12

• Total Dissolved Solids - 12

• Anions (Br-, Cl-, F-, NO3-, NO2-, PO4-, SO4-) - 12

4.2 Sample Collection

4.2.1 Contractor shall supply pre-cleaned sample containers with preservative as needed for all samples listed in Section 4.1.

4.3 Analysis

4.3.1 Water Chemistry

4.3.1.1 The contractor shall perform chemical analysis on all samples listed in Section 4.1. Unless specified in 4.1.1 and 4.1.2, all target analytes for the specific method should be reported.

4.3.1.2 The contractor shall follow all methods and quality assurance/quality control (QA/QC) in each method specified in Section 4.1.1 and 4.1.2.

4.3.1.3 The contractor shall meet all applicable chemistry QA/QC and limits of quantification requirements described in each method in Section 4.1.1 and 4.1.2.

4.3.1.4 In cases where equipment failure or other issue will result in delays in reporting beyond the timeline in Section 5.1.3, the contract shall have a plan to ensure timely analyses (i.e. sending samples to another lab for analyses, etc.)

5.0 Reporting

5.1 Water/Sediment/Tissue Chemistry

5.1.1 The contractor shall immediately notify NIWC Pacific technical POC(s) upon a requirement to make a corrective action for chemistry analysis.

5.1.2 The contractor shall provide a summary report in electronic form within 5 weeks of sample delivery. A level II report is acceptable.

5.1.3 The contractor shall provide an electronic data deliverable with the data organized in a spreadsheet within 5 weeks of sample delivery.

5.1.4 The summary data reporting shall include all required QA/QC and sample information by required methods and accreditations, including the following:

• Task summary

• Chronology of sample processing and analysis

• Copy of sample custody sheets

• Methods description

• The data tables in the spreadsheet and report shall show sample analytical results that contains the following information for each sample:

o Sample Name/Number, QA Sample Name o Date Collected o Date Processed o Date Analyzed o Analytical Method o Measured value o Analytical Units o Analytical result data qualifier o The laboratory minimum detection limit and reporting limit o A QA/QC summary including corrective actions

6.0 QUALIFICATION REQUIREMENTS

The contractor laboratory must be DoD-certified for PFAS analyses using Method 1633A and accredited

(e.g. ELAP, NELAC, DoD) for all other methods at a minimum. The contractor must have specific experience and expertise in EPA approved environmental chemistry chain-of-custody, sample handling and analysis methods. Contractor must have specific standard operating procedures (SOPs) and QA/QC in place and a history of performing all required analysis.

7.0 GOVERNMENT FURNISHED EQUIPMENT (GFE)

None.

8.0 OTHER

8.1 TRAVEL. None.

8.2 PLACE OF PERFORMANCE. Contractor's facility.

8.4 SECURITY. Unclassified.

8.5 TECHNICAL POINT OF CONTACT (TPOC): Nicholas Hayman Code 71760, nicholas.t.hayman.civ@us.navy.mil. 619-553-3304.