Record Display for the EPA National Library Catalog


Main Title Eutrophication of surface waters : Lake Tahoe Indian Creek Reservoir /
Author McGauhey, P. H.
Other Authors
Author Title of a Work
Porcella, D. B.,
Dugan, Gordon L.,
CORP Author Lake Tahoe Area Council.
Publisher United States Environmental Protection Agency, Water Quality Office,
Year Published 1971
Report Number EPA16010-DNY-07/71; W7212957; EPA 950/R-71-047
OCLC Number 00357307
Subjects Water quality--California--South Lake Tahoe ; Limnology--California--South Lake Tahoe ; Eutrophication--California--South Lake Tahoe ; Water quality--California--Indian Creek Reservoir ; Limnology--Indian Creek Reservoir, Calif
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 16010-DNY-07-71 Headquarters Library/Washington,DC 03/17/2015
ELBD ARCHIVE EPA 16010-DNY-07-71 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD RPS EPA 16010-DNY-07-71 repository copy AWBERC Library/Cincinnati,OH 08/17/2020
ERAD  EPA 950/R-71-047 2 copies Region 9 Library/San Francisco,CA 03/25/2016
ERAD  TD224.C3 L32 2 copies Region 9 Library/San Francisco,CA 09/24/2013
Collation vii, 116 pages : illustrations, maps, charts ; 28 cm
"July 1971." "This report was submitted in fulfillment of Demonstration Grants No. 16010 DSW and 16010 DNY, under the sponsorship of the Water Quality Office, Environmental Protection Agency."--Page iii. Publisher location came from U.S. EPA About EPA, Mailing addresses and phone numbers webpage. Sponsored by the Water Quality Office, Environmental Protection Agency Includes bibliographical references (pages 79-80).
Contents Notes
The water impounded at Indian Creek Reservoir near Lake Tahoe, California is approximately one-third surface runoff and direct precipitation and two-thirds reclaimed water exported from South Tahoe Public Utility District Plant. Discussed are the results of tests which determined the temporal changes and relationships between water quality characteristics of Indian Creek Reservoir and those of the reclaimed water. Initially the reservoir would not support fish life, but as the reservoir matured, ammonia levels declined to less than 4 mg/l and by 1970 it was an excellent trout fishery. Approximately 70% of the ammonia nitrogen was lost to the atmosphere by nitrification-denitrification. Good biological productivity indicated access to other phosphorus sources, probably runoff. Relative to conductivity and chemical components the water is of good irrigation quality. Various parameters showed that the reservoir responds to more complex factors than those measurable in the reclaimed waste water, raising the question of the effectiveness of tertiary treatment for recreational impoundments.