ACAT FOIA Repository 35

Document: ACAT FOIA Repository 35, Date Received July 2023
Year: July 2007 (Revised from August 2006)
Pages: 1424
Document Title: Gambell FUDS Remedial Investigation, August 2006 Groundwater Sampling Report
Agency/Organization:
US Army Corps of Engineers (Alaska), Bristol Construction

Document Summary:
This Groundwater Monitoring Report documents groundwater sampling performed three times during 2005-2006. By sampling in different months, groundwater monitoring was planned to coincide with both high and low water events. This report discusses the third of three groundwater sampling events. Groundwater sampling was performed by Bristol Construction Services, LLC (Bristol), in Gambell, Alaska, in August 2006. Field activities were conducted on August 16 and 17, 2006. The primary objective of the groundwater sampling was to monitor the concentrations of target analytes in the area adjacent to the City of Gambell’s water supply (Site 5), groundwater depths, and flow direction. Gambell’s water is supplied by a single infiltration gallery, located approximately 2,000 feet east of the townsite, at the base of Sevuokuk Mountain. Water derived from the gallery is considered to be surface-influenced and potentially susceptible to contamination.