Open AccessTNX Area 1994 Annual Groundwater Monitoring Report
Author(s) -
Jennifer Chase
Publication year - 1995
Language(s) - English
Resource type - Reports
DOI - 10.2172/78856
Subject(s) - trichloroethylene , tetrachloroethylene , groundwater , aquifer , environmental science , water well , environmental chemistry , nitrate , hydrology (agriculture) , geology , chemistry , geotechnical engineering , organic chemistry
During 1994, samples from selected wells of well cluster P 26 and the TBG, TNX, XSB, and YSB well series at the TNX Area were analyzed for selected heavy metals, indicator parameters, radionuclides, volatile organic compounds, and other constituents. Six parameters exceeded the final Primary Drinking Water Standards (PDWS). Nitrate and trichloroethylene exceeded the final PDWS most frequently. Five wells in this area currently are part of the Purge Water Containment Program due to high trichloroethylene concentrations. Carbon tetrachloride, gross alpha, nonvolatile beta, and tetrachloroethylene were elevated sporadically in one or more wells during the year. Groundwater flow directions and rates in the Unconfined Aquifer were similar from quarter to quarter during the year