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STREAM MODELS FOR CALCULATING POLLUTIONAL EFFECTS OF STORMWATER RUNOFF
Citation:
Smith, R. AND R. Eilers. STREAM MODELS FOR CALCULATING POLLUTIONAL EFFECTS OF STORMWATER RUNOFF. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-78/148 (NTIS PB286930), 1978.
Description:
Three related studies are described which provide the means to quantify the pollutional and hydraulic effects on flowing streams caused by stormwater runoff. Mathematical stream models were developed to simulate the biological, physical, chemical, and hydraulic reactions which occur in a stream. Relationships take the form of differential equations with the two independent variables of time and distance. The differential equations can be solved directly by means of calculus or by digital computer using numerical methods. The solution would be the concentration of species of pollutional interest, such as BOD and dissolved oxygen, within the stream as a function of distance and time. The solution can be steady-state or transient. The purpose of this report is to show how the solution can be found for the case where the pollution loading is a transient, especially as it applies to the stormwater overflow.