OLS : Record

RECORD NUMBER: 42 OF 185

Main Title Effect of Phosphorus Control Options on Lake Water Quality.
Author Lorenzen, Marc W.;
CORP Author Tetra Tech, Inc., Lafayette, CA.;Environmental Protection Agency, Washington, DC. Office of Toxic Substances.
Year Published 1979
Report Number TETRAT-TC-3930; EPA-68-01-3961; EPA/560/11-79/011;
Stock Number PB80-123698
Subjects Phosphorus; Water pollution control; Lakes; Surveys; Reduction; Detergents; Sewage treatment; Effectiveness; Chlorophylls; Concentration(Composition); Graphs(Charts); Turbidity; Mathematical models; Evaluation; Correlation techniques; National Eutrophication Survey; Eutrophication; Nonpoint sources; Tertiary treatment; Organic loading
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB80-123698 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 281p
Abstract Data collected as part of the National Eutrophication Survey (NES) were used to test the consequences of eight different phosphorus control options. The control options included detergent limitations, municipal treatment plant control, nonpoint source control and combinations of tertiary sewage treatment and nonpoint source control. The results indicated that although site specific studies should be conducted for any given lake, as a general rule detergent phosphorus control would be of marginal value. Eighty percent reductions in municipal treatment plant discharges would reduce average lake phosphorus concentration from 0.084 mg/l to 0.059 mg/l. It was found that nonpoint source control was more effective in increasing the number of lakes with less than 0.025 mg/l of total phosphorus than was an equivalent level of point source control.
Supplementary Notes Includes fourteen sheets of 20X reduction microfiche.
NTIS Title Notes Final rept..
PUB Date Free Form Sep 79
Category Codes 8H; 68D; 48G
NTIS Prices PC E10/MF$5.50
Primary Description 500/00
Document Type NT
Control Number 323772379
Cataloging Source NTIS/MT
Origin NTIS
Type CAT