||Effect of animal grazing on water quality of nonpoint runoff in the Pacific Northwest
Saxton, Keith E. ;
Elliott, Lloyd F. ;
Papendick, Robert I. ;
Jawson, Michael D. ;
Fortier, David H.
||Agricultural Research Service, Pullman, WA. ;Bureau of Land Management, Washington, DC.;Robert S. Kerr Environmental, Research Lab., Ada, Ok.
||U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Laboratory ;
Grazing--Environmental aspects--Northwestern States ;
Agricultural wastes--Environmental aspects--Northwestern States ;
Water quality--Northwestern States
Surface water runoff ;
Water pollution ;
Stream flow ;
Agricultural wastes ;
Grazing land ;
Soil erosion ;
Coliform bacteria ;
Dissolved gases ;
Nonpoint sources ;
Pacific Northwestern Region(United States) ;
Unit hydrographs ;
||Region 10 Library/Seattle,WA
||Some EPA libraries have a fiche copy filed under the call number shown.
||xii, 135 p. : ill. ; 28 cm.
This project was initiated to evaluate the effects of summer grazing cattle in the winter precipitation regions of the western intermountain basins of the United States on the quality and quantity of nonpoint surface runoff. Emphasis was placed on erosional, chemical, and bacteriological characteristics of runoff from a typically managed summer pasture to determine the potential contribution of this practice to nonpoint source pollution. The results show that bacterial quality is related to livestock, but there is considerable doubt that indicator bacterial water quality standards developed for point sources are appropriate for assessing non-point source bacterial contamination.
"Aug. 1983." "EPA-600/2-83-071."