DRAFT Groundwater Monitoring Event 89 and 2024 GWETS Annual Report.pdf

This is a draft groundwater monitoring report documenting Event 89 and the 2024 Groundwater Environmental Tracking System (GWETS) annual report for the U.S. Army Natick Soldier Systems Center (NSSC) in Natick, MA. The document provides technical data and findings from semi-annual groundwater monitoring activities conducted at three contaminated sites: NRDEC-05, NRDEC-11, and NRDEC-16. The report compiles analytical results, water quality measurements, and environmental conditions observed during the monitoring event, which serves as the basis for tracking remedial action effectiveness and long-term groundwater management at these hazardous substance sites under CERCLA compliance.

The draft report feeds directly into the solicitation W911QY-26-R-GROUNDWATER, which seeks a contractor to perform groundwater pump and treatment system operations and semi-annual monitoring services for FY26. The monitoring data presented in this draft document establishes the baseline environmental conditions and demonstrates the ongoing operational requirements that the awarded contractor must maintain and report on, including site characterization, water elevation measurements, contaminant concentration trends, and treatment system performance metrics necessary for compliance with remedial action objectives.