Questions and Answers for SOL Nov 3 2026

1) Prior injection work and available treatment records: The May 22, 2025 Remedial Action Plan identifies ISOTEC Remediation Technologies as a proposed partner for development and implementation of the in situ chemical oxidation program. Please confirm whether ISOTEC or any other contractor has performed any pilot-scale or full-scale remedial injections at the site to date. If so, please identify the contractor, dates and treatment locations, and provide the associated injection plans, NHDES approvals, amendment types and quantities, injection logs, and available performance-monitoring results. If no injections have occurred, please confirm whether the initial application required under this solicitation will be the first remedial injection event at the site. No pilot-scale or full-scale remedial injections have been performed to date. The initial application required under this solicitation will be the first remedial injection event at this site.

Note that scope items were listed in reverse chronological order, so the first application is Item 0005, and the second application is Item 0002. This is Contracting’s preference, so that the last items of the requirement are the first to drop off.

Note that the contractor who prepared the Remedial Action Plan proposed that they would use ISOTEC Remediation Technologies, assuming they would continue the requirement through completion of the groundwater remediation. The VA performed the initial investigation and the soil remediation as part of a construction project to replace the fuel tanks, including the fuel dispenser assumed to be the source of the contamination. Due to funding and contracting requirements, the VA is completing the groundwater remediation through a separate requirement. Note that the VA does not have a contract with ISOTEC Remediation Technologies and has no preference towards a specific contractor or subcontractor for any portion of this requirement.

2) Completed testing and injection design: Have bench-scale treatability testing, soil oxidant-demand testing, hydraulic testing, or a detailed injection design been completed since preparation of the attached reports? If so, please provide the results, design documents, and related NHDES correspondence. No testing or injection design has been completed to date. The results of all completed testing and official NHDES correspondence have been provided as attachments to the scope of work. Nothing additional has been completed since the July 9, 2026 Groundwater Monitoring Report in Attachment J.