ABSTRACT
This chapter presents the issues involved in applying the simplified particulate transport model (SIMPTM) model to successfully evaluate the overall effectiveness of street sweeping technologies, programs as a water quality management practice. The nationwide urban runoff program (NURP) studies of street sweeping effects on stormwater quality concluded that street sweeping was largely ineffective at reducing the event mean concentration of pollutants in urban runoff. The street sweeping component of the SIMPTM model was based on the results of Pitt's street sweeping study conducted for the USEPA in San Jose, California. Working with a calibrated version of the SIMPTM program, the average annual expected reduction in total suspended solids washoff from of Portland's NPDES stormwater sites were projected for varying sweeping frequencies using the NURP era sweepers, the new mechanical sweeper, the promising sweeping technologies. The actual pollutant reduction effectiveness of any given street sweeping operation will depend on characteristics of land use, precipitation, the accumulation dynamics of contaminated sediments.
