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A Novel Approach to TMDL Development for Aquatic Life Impairments

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Watershed Management to Meet Water Quality Standards and Emerging TMDL (Total Maximum Daily Load) Proceedings of the Third Conference 5-9 March 2005 (Atlanta, Georgia USA) Publication Date 5 March 2005  701P0105.(doi:10.13031/2013.18071)
Authors:   Karen S. Kline, James D. Kern, Phillip W. McClellan

Black Creek and Dumps Creek in southwestern Virginia were placed on the Commonwealth of Virginias 1998 and 1994 303(d) List of Impaired Waters, respectively, because of violations of the General Standard (benthic). The General Standard does not identify the stressors (i.e., pollutants) that are harmful to aquatic life, only the health of the benthic macro-invertebrate community, through measurement of eight biometrics. In establishing TMDLs for benthic impairments, a relationship between the impairment (i.e., benthic macroinvertebrates) and the pollutant(s) causing the impairment (e.g., iron) has to be defined.

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