Estimation of Urban Stormwater Quality

by Marshall E. Jennings, US Geological Survey, United States,
Gary D. Tasker, US Geological Survey, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


Two data-based methods for estimating urban stormwater quality have recently been made available - a planning level method developed by the U.S. Environmental Protection Agency (EPA), and a nationwide regression method developed by the U.S. Geological Survey. Each method uses urban stormwater water-quality constituent data collected for the Nationwide Urban Runoff Program (NURP) during 1979-83. The constituents analyzed include 10 chemical constituents - chemical oxygen demand (COD), total suspended solids (TSS), dissolved solids (DS), total nitrogen (TN), total ammonia plus nitrogen (AN), total phosphorus (TP), dissolved phosphorous (DP), total copper (CU), total lead (PB), and total zinc (ZN). The purpose of this report is to briefly compare features of the two estimation methods.

Subject Headings: Water quality | Dissolved solids | Urban areas | Stormwater management | Water pollution | Oxygen demand | Nitrogen | Zinc

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