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RECORD NUMBER: 49 OF 448

Main Title Blackduck Lake, Beltrami County, Minnesota.
CORP Author Pacific Northwest Environmental Research Lab., Corvallis, Oreg.;National Environmental Research Center, Corvallis, Oreg.;National Environmental Research Center, Las Vegas, Nev.;Minnesota Pollution Control Agency, Minneapolis.;Minnesota National Guard, Minneapolis.
Year Published 1974
Report Number Working Paper-86;
Stock Number PB-240 224
Additional Subjects Water pollution ; Blackduck Lake ; Surveys ; Inorganic phosphates ; Inorganic nitrates ; Bioassay ; Primary biological productivity ; Chemical properties ; Water quality ; Drainage ; Nutrients ; Sources ; Tables(Data) ; Minnesota ; Eutrophication ; Water quality data ; Beltrami County(Minnesota)
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-240 224 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 33p
Abstract Annual total phosphorus and total nitrogen loadings to the lake were estimated and subdivided according to either point or non-point source origin. An assessment of the lake's trophic condition and limiting nutrient is also provided. All data collected by the U.S.E.P.A. National Eutrophication Survey during the one year study of the lake and its tributaries are included in the report.
Supplementary Notes Prepared in cooperation with National Environmental Research Center, Corvallis, Oreg., National Environmental Research Center, Las Vegas, Nev., Minnesota Pollution Control Agency, Minneapolis, and Minnesota National Guard, Minneapolis.
NTIS Title Notes Final rept.
PUB Date Free Form Nov 74
Category Codes 13B; 08H; 68D
NTIS Prices PC A03/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326601217
Origin NTIS
Type CAT