Reconnaissance Investigation of Volatile and Semivolatile Organic Compounds in the Memphis Aquifer at Alamo, Crockett County, Tennessee
GEOLOGICAL SURVEY WASHINGTON DC
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Samples of ground water and soil gas were analyzed to study the occurrence of volatile and semivolatile organic compounds in the Memphis aquifer at Alamo in western Tennessee in 1989. At Alamo, the aquifer is locally unconfined. Four wells screened in the Memphis aquifer provided Alamo with 0.3 million gallons of water per day. Trichloroethylene TCE, dichloroethylene, trichloroethane, and tetrachloroethylene were detected in water samples from two of the wells. In September 1989, the TCE concentration in a sample from well 1 was 45 micrograms per liter mugL Tennessees maximum contaminant level for TCE in drinking water is 5 mugL. Concentrations of TCE in water from this well ranged from 40 to 113 mugL during 1988 and 1989. TCE concentration in water collected from well 2 in September 1989 was 0.7 mugL. During 1988 and 1989, TCE concentrations in this well ranged from less than 0.5 to 5.1 mugL. None of the semivolatile organic compounds on the U.S. Environmental Protection Agencys priority-pollutant list were detected in water from well 1.
- Organic Chemistry
- Physical Chemistry
- Geology, Geochemistry and Mineralogy