| Main Title |
Black Hawk Lake, Sac County, Iowa. |
| CORP Author |
Pacific Northwest Environmental Research Lab., Corvallis, Oreg.;Iowa Dept. of Environmental Quality, Des Moines.;Iowa National Guard, Des Moines.;National Environmental Research Center, Las Vegas, Nev. |
| Year Published |
1976 |
| Report Number |
Working Paper-496; |
| Stock Number |
PB-258 247 |
| Additional Subjects |
Water pollution ;
Black Hawk Lake ;
Surveys ;
Inorganic phosphates ;
Inorganic nitrates ;
Bioassay ;
Primary biological productivity ;
Chemical properties ;
Water quality ;
Drainage ;
Nutrients ;
Sources ;
Tables(Data) ;
Iowa ;
Eutrophication ;
Water quality data ;
Sac County(Iowa)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-258 247 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
35p |
| 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, Las Vegas, Nev., Iowa Dept. of Environmental Quality, Des Moines, and Iowa National Guard, Des Moines. |
| NTIS Title Notes |
Final rept. 1974. |
| PUB Date Free Form |
Aug 76 |
| Category Codes |
13B; 8H; 68D |
| NTIS Prices |
PC A03/MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
326629885 |
| Origin |
NTIS |
| Type |
CAT |
