Heavy Metal Loadings to the Detroit River from Combined Sewer Overflows

Abstract
The calculation of 1995 pollutant loads from the Conner Creek Combined Sewer Overflow (CSO) discharging to the Detroit River is presented in this work. The chemical analysis of selected heavy metals (Cd, Cr, Cu, Fe, Pb, Zn) which have a high toxic potential for the Detroit River is given. The United States Geological Survey (USGS) measurement data (1995) is utilized to compute the load of these toxicants to the Detroit River. These data include the concentrations of constituents and the volumetric discharge flow rates of the CSOs. The 1995 concentrations and loadings are compared with 1979 measurements and calibrated computer predictions. The results show that the 1995 concentrations and loadings for CSOs to the Detroit River are less than the 1979 concentration and loading estimations for most of the selected contaminants at the Conner site.
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