Search Results for the EPA National Library Catalog

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North Waubay Lake, Day County, South Dakota. 1976
Northboro, Hudson, Maynard, and Billerica Impoundments, Worcester and Middlesex Counties, Massachusetts. 1975
Nutrient chemistry of a large, deep lake in subarctic Alaska / 1978
Nutrient Management in the Potomac Estuary. 1971
Nutrient Transport and Dissolved Oxygen Budget Studies in the Potomac Estuary. 1972
Nutrients in the Potomac River Basin. 1969
Nutrients in the Upper Potomac River Basin. 1969
O'Shaughnessy Reservoir, Delaware County, Ohio. 1975
O. C. Fisher (San Angelo) Reservoir, Tom Green County, Texas. 1977
Oconomowoc Lake, Waukesha County, Wisconsin. 1975
Ohio River cooling water study 1974
Ohio River Pollution Survey. Volume II. Major Tributary Basins. 1942
Ohio River Pollution Survey. Volume III. Major Tributary Basins. 1942
Okauchee Lake, Waukesha County, Wisconsin. 1975
Old Ben Mine Reservoir, Franklin County, Illinois. 1975
Olin Lake, LaGrange County, Indiana. 1976
Oliver Lake, LaGrange County, Indiana. 1976
Open Lake Water Quality Conditions for Lake Erie's Central and Eastern Basins, 1985. 1987
Open Lake Water Quality Conditions for Lake Erie's Western, Central and Eastern Basins, 1986. 1988
Operation of Small Scale Uranium Removal Systems. 1989
Oradell Reservoir, Bergen County, New Jersey. 1976
Ordination of Aquatic Nematode Communities as Affected by Stream Water Quality. 1979
Organic Carbon - A Nonspecific Water Quality Indicator for Lake Superior. 1978
Otter Lake, Cayuga County, New York. 1974
Owasco Lake, Cayuga County, New York. 1974
Package water treatment plants : vol. I - a performance evaluation / 1980
Pactola Reservoir, Pennington County, South Dakota. 1976
Paired watershed study design / 1993
Palouse River transect study : Station no. 153010 : July 8 & 9, 1969. 1970
Patuxent River. Water Quality Management Technical Evaluation. 1969
Paulinskill Lake, Sussex County, New Jersey. 1976
Pearl River Shallow Water Reservoir Water Quality-Recreation Project: Preimpoundment Study. 1963
Pelican Lake, Bottineau County, North Dakota. 1976
Pelican Lake, St. Louis County, Minnesota. 1974
Performance evaluation of an existing lagoon system at Eudora, Kansas / 1977
Persistence of Lignin in River Waters. 1974
Perspectives on Environmental Monitoring: An Introduction to the U.S. EPA Long-Term Monitoring (LTM) Project. 1993
Pesticide and Water Quality Study, Lake Chicot, Mississippi River Basin, Arkansas. Study of Endrin and Dieldrin Pesticide Pollution of Upper and Lower Lake Chicot. 1965
Pesticide Pollution Studies. 1963
Petenwell Flowage, Juneau, Adams, and Wood Counties, Wisconsin. 1975
Pewaukee Lake, Waukesha County, Wisconsin. EPA Region V. 1975
Phosphate reduction and response of plankton populations in Kootenay Lake / 1976
Physical and Chemical Oceanographic Data Umpqua River Estuary Oregon. Part II: January 25-26, 1961. 1961
Physical and Chemical Oceanographic Data. Umpqua River Estuary Oregon. Part I: December 14-15, 1960. 1961
Phytoplankton water quality relationships in U.S. lakes / 1979
Pickwick Lake, Colbert and Lauderdale Counties, Alabama. Tishomingo County, Mississippi. Harding County, Tennessee. 1976
Pigeon Lake, Steuben County, Indiana. 1976
Pine Lake, Waukesha County, Wisconsin. EPA Region V. 1975
Pinecliff Lake, Passaic County, New Jersey. 1976
Plankton Population Dynamics. 1962
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