Calibration of PCSWMM to estimate metals, PCBs and HCB in CSOs from an industrial sewershed

Calibration procedure and results are discussed for the application of PCSWMM to an industrialized sewershed that overflows to the Buffalo River, New York. The levels of total PCBs, HCB, Mn, V and Cu associated with the particulate and dissolved phases of several sampled overflows are reported. The total PCBs levels are of some concern, as they exceed state-targeted guidelines for water quality. An approach to estimate long term pollutant loadings to the Buffalo River from the sampled sewershed is discussed. Overflow volumes from the 1991 field season and data on total PCBs levels were used to illustrate the estimation approach. -from Authors