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RECORD NUMBER: 584 OF 1675

OLS Field Name OLS Field Data
Main Title Effect of Snowmelt on the Water Quality of Filson Creek and Omaday Lake, Northeastern Minnesota.
Author Siegel, D. I. ;
CORP Author Geological Survey, St. Paul, MN. Water Resources Div.;Environmental Research Lab.-Duluth, MN.
Year Published 1981
Report Number EPA-600/J-81-661;
Stock Number PB84-124940
Additional Subjects Snowmelt ; Inorganic sulfates ; Water pollution ; Filson Creek ; pH ; Chemical analysis ; Sources ; Ground water ; Surface waters ; Precipitation(Meteorology) ; Acidity ; Minnesota ; Reprints ; Acid precipitation
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Status
NTIS  PB84-124940 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 9p
Abstract Sulfate concentration and pH were determined in surface water, groundwater and precipitation samples collected in the Filson Creek watershed to evaluate the sources of sulfate in Filson Creek. During and immediately after snowmelt, sulfate concentrations in Filson Creek increased from about 2 to 14 mg/l. Concurrently, H(H) ion activity increased from an average of 10 to the -6.6th power to 10 to the -5.5 power. These changes suggest that sulfate acidity is concentrated in the snowpack at snowmelt, which is similar to changes reported in Scandinavia in areas subject to acid precipitation. Mass balance calculations indicate that the sulfate contribution from groundwater during snowmelt was minimal in comparison to that from snow.
Supplementary Notes Pub. in Water Resources Research, v17 n1 p238-242 1981.
Title Annotations Reprint: Effect of Snowmelt on the Water Quality of Filson Creek and Omaday Lake, Northeastern Minnesota,
PUB Date Free Form 1981
Category Codes 8H; 68D; 48G
NTIS Prices PC A02/MF A01
Primary Description 600/03
Document Type NT
Cataloging Source NTIS/MT
Control Number 404822390
Origin NTIS
Type CAT