Rangeland Ecology & Management

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Determining sources of fecal pollution in a rural Virginia watershed with antibiotic resistance patterns in fecal streptococci
Hagedorn, C., S. L. Robinson, J. R. Filtz, S. M. Grubbs, T. A. Angier, R. B. Reneau, Jr.
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Antibiotics resistance in fecal streptococci was used to identify sources of fecal pollution in a rural Virginia watershed. A database of fecal streptococcus isolates was established from known human, livestock, and wildlife sources. Identification of the correct fecal streptococcus source for the entire database ranged from 84% for deer isolates to 93% for human isolates. To field test the method and the database, a watershed improvement project Page Brook in Clark County, VA (approximately 80 km west of Washington DC) was initiated in 1996. Water samples from surface water and ground water were collected monthly from November 1996 to February 1999 and were analyzed for contaminants within 24 hours.

water quality
fecal coliform
nonpoint source pollution
pollution source identification
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