Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Modeling nonpoint pollution from the land surface
Author Donigian, Anthony S. ; Crawford., Norman H.
CORP Author Hydrocomp Inc., Palo Alto, Calif.;Environmental Research Lab., Athens, Ga.
Publisher Hydrocomp Inc.,
Year Published 1976
Report Number EPA-600/3-76-083; R803315-01-0; EPA-R-803315-01-0
Stock Number PB-257 089
Additional Subjects Stream pollution ; Stream flow ; Land development ; Mathematical models ; Watersheds ; Sites ; Runoff ; Sources ; Water quality ; Urban areas ; Computerized simulation ; Land use ; Sedimentation ; Channel improvements ; Sediment transport ; Rural areas ; North Carolina ; Wisconsin ; Washington(State) ; Computer programs ; FORTRAN ; NPS model ; Organic loadings ; Durham(North Carolina) ; Madison(Wisconsin) ; Seattle(Washington) ; Nonpoint Source Pollution Loading Model ; Nonpoint sources
Library Call Number Additional Info Location Last
NTIS  PB-257 089 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Development and initial testing of a mathematical model to continuously simulate pollutant contributions to stream channels from nonpoint sources is presented. The Nonpoint Source Pollutant Loading (NPS) Model is comprised of subprograms to represent the hydrologic response of a watershed, including snow accumulation and melt, and the processes of pollutant accumulation, generation, and washoff from the land surface. The simulation of nonpoint pollutants from both pervious and impervious areas is based on sediment as a pollutant indicator. The calculated sediment washoff is multiplied by user-specified 'potency factors' that indicate the pollutant strength of the sediment for each pollutant simulated. Both urban and rural areas can be simulated. Initial testing of the NPS Model was performed on three urban watersheds in Durham, North Carolina; Madison, Wisconsin; and Seattle, Washington.
Prepared under Grant No. R803315-01-0 for the Office of Research and Development, Environmental Research Laboratory. Also issued as EPA 600/3-76-083.