Groundwater Monitoring Event 83 and 2021 GWETS Annual Report.pdf

This file is a groundwater monitoring report documenting Event 83 and the 2021 Groundwater Environmental Testing System (GWETS) Annual Report for the Natick Soldier Systems Center. The document provides technical data and results from semi-annual groundwater monitoring activities conducted at three Army environmental remediation sites: NRDEC-05, NRDEC-11, and NRDEC-16 at the U.S. Army NSSC in Natick, Massachusetts. The report presents baseline conditions, contaminant levels, monitoring well performance data, and annual analytical results required to track the effectiveness of the groundwater pump and treatment system operations under the CERCLA remediation program. This monitoring data serves as supporting documentation for the ongoing environmental remediation contract requirements and demonstrates compliance with regulatory standards for hazardous substance site management.

The report functions as a technical deliverable required under the Performance Work Statement for the semi-annual groundwater monitoring services specified in solicitation W911QY-26-R-GROUNDWATER. The document contains historical monitoring information essential for evaluating remedial action progress, informing treatment system optimization, and meeting reporting obligations to regulatory agencies overseeing the three contaminated sites.