The Act of Discrete Pollutant Sources on the Water Quality of Lake Lanier
York, M. Timmerly
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The potential discrete pollutant sources in the Lake Sidney Lanier watershed were identified and investigated. A sampling program was conducted to determine typical concentrations of pollutants from ten wastewater treatment facilities and from urban storm water runoff into three streams. Average yearly pollutant loadings into the lake were calculated based on the results from the sampling program and the facilities' monitoring data These calculations indicate that urban storm water runoff is a significant portion of the total loading of biochemical oxygen demand (BODO into the lake. The effluent from municipal wastewater treatment facilities comprised the significant portion of nitrogen, ammonia, and total organic carbon (TOC) loading. The loading of phosphorus was approximately equal from urban runoff and the municipal effluents. This investigation indicates that of the sources investigated, municipal wastewater treatment facilities and urban runoff can provide significant loadings of pollutants into Lake Lanier. Synthesis of this research with that of nonpoint sources of pollution will provide the basis for sound watershed management of Lake Lanier.