Book Description

Seven sites were investigated for contamination at McEntire ANGB during the Installation Restoration Program (IRP) Phase II Stage 1. Sites examined included two fire training areas, a sanitary landfill, a liquid waste storage area, an oil dump site, a C-141 spill trench, an unofficial dump site, and a drainage pond/swamp area. The Stage 1 field investigation involved the installation of 23 ground-water monitoring wells and the collection of numerous soil, sediment, surface water, and groundwater samples. Samples were analyzed for volatile organic compounds (VOC), total organic halogens (TOX), total organic carbon (TOC), arsenic and trace metals, oil and grease, total phosphorous, and nitrates. Field measurements of pH, specific conductance, and temperature were also made. Quality Assurance/Quality Control (QA/QC) sampling and analysis, both in the field and in the laboratory, were integral parts of this effort. Elevated levels for contaminants were identified at 5 of the sites investigated. Contaminants were elevated in groundwater at 4 of the 6 sites where groundwater was examined. Elevated contaminant levels in soil and sediment samples were found at 4 of the 6 sites where these media were sampled. Two sites were without contamination in the media investigated. Elevated contaminant levels were found but not confirmed at the base water supply well W-1. Keywords: Groundwater; Water wells; Hazardous wastes; Pollution. (KT).