Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Eutrophication of surface waters : Lake Tahoe's Indian Creek Reservoir /
Author McGauhey, P. H. ; Porcella, D. B. ; Dugan., G. L. ;
Other Authors
Author Title of a Work
McGauhey, P. H.
Porcella, D. B.
Dugan, G. L.
Porcella, Donald B.
CORP Author Lake Tahoe Area Council.
Publisher U.S. G.P.O.,
Year Published 1975
Report Number EPA-660/3-75-003; EPA-16010-DNY; EPA-16010-DSW
Stock Number PB-240 725
OCLC Number 01240459
Subjects Eutrophication--California. ; Water quality--California. ; Water--Purification. ; Eutrophication--California--Indian Creek Reservoir. ; Water quality--California--Indian Creek Reservoir. ; Indian Creek Reservoir (Calif.)
Additional Subjects Water pollution ; Indian Creek Reservoir ; Primary biological productivity ; Nitrification ; Bioassay ; Inorganic phosphates ; Ammonium compounds ; Inorganic nitrates ; Aquatic plants ; Fishes ; Algae ; Nutrients ; Water reclamation ; California ; Eutrophication ; Reclaimed water ; South Tahoe Public Utility District ; Water pollution effects(Animals) ; Water pollution effects(Plants)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 660-3-75-003 Headquarters Library/Washington,DC 07/09/2012
EJBD  EPA 660-3-75-003 Headquarters Library/Washington,DC 12/24/2014
ERAD  EPA 660/3-75-003 Region 9 Library/San Francisco,CA 03/18/2013
ESBD  EPA-660-3-75-003 CPHEA/PESD Library/Corvallis,OR 09/27/2017
NTIS  PB-240 725 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation ix, 188 pages : illustrations ; 27 cm.
From April 1969 to October 1974 field and laboratory analyses and observations were made at approximately weekly intervals to evaluate the relationship between the quality of water impounded at Indian Creek Reservoir (ICR) and the reclaimed water exported by the South Tahoe Public Utility District. The reclaimed water comprised from 70 to 80% of the annual impoundment. On the average the reclaimed water contained 0.1 to 0.2 mg/l of phosphorus and 15-24 mg/l of ammonia, the latter making it toxic to fish implanted in ICR. However, as the reservoir matured, nitrification-denitrification removed most of the nitrogen from the system and by March 1970 the reservoir had become an excellent trout fishery. Excess N in comparison with P evidently precluded blooms of blue green algae but low phosphorus did not prevent the impoundment from becoming typical of a highly productive environment, with vascular plants invading to considerable depths because of the high degree of clarity of the reclaimed water. It is concluded that the reservoir responds to more complex factors than are measurable by analysis of reclaimed water.
"Prepared for National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency." Includes bibliographical references (pages 115-118). Sponsored by U.S. EPA