Search Results for the EPA National Library Catalog

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Showing: Items 351 - 400
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Mountain Island, Lake Gaston and Mecklenburg Counties, North Carolina. 1975
Mud Lake, Itasca County, Minnesota. 1975
Multiple Eluent and pH Effects on Ion Chromatography of Phosphate and Arsenate. 1982
Nagawicka Lake, Waukesha County, Wisconsin. 1974
Nationwide Urban Runoff Program, Lake Quinsigamond Urban Runoff Project: Report on Stormwater Measurements and Modeling - Appendices A, B, and C. 1981
Natural Radioactivity Contamination Problems. 1981
Natural Radioactivity Contamination Problems. 1978
Nature and Stability of Complex Mercury Compounds in Surface and Ground Waters. 1973
Nematode Community Structure. A Tool for Evaluating Water Resource Environments. 1972
Nest Lake, Kandiyohi County, Minnesota. 1974
New approaches to the preservation of contaminants in water samples / 1979
Nitrogen and phosphorus in wastewater effluents, working paper no. 22, a prelim. analysis of Nat. Eutrophication Survey data collected during the 1972-73 sampling period. 1974
Nitrogen and phosphorus losses from agronomy plots in North Alabama / 1974
North Waubay Lake, Day County, South Dakota. 1976
Northboro, Hudson, Maynard, and Billerica Impoundments, Worcester and Middlesex Counties, Massachusetts. 1975
NTA and mercury in artificial stream systems / 1974
Nutrient Enrichment of Runoff Waters by Soils. Phase I: Phosphorus Enrichment Potential of Urban Soils in the City of Madison. 1972
Nutrient Limitation and Adaption of Microbial Populations to Chemical Transformations. 1986
Nutrient Removal from Wastewater by Physical-Chemical Processes. 1971
Nutrient transport by sediment-water interaction. 1973
Nutrients from Tile Drainage Systems. 1971
Nutritional Requirements of the Submerged Angio-Sperm 'Ruppia maritima' in Algae-Free Culture. 1984
O'Shaughnessy Reservoir, Delaware County, Ohio. 1975
O. C. Fisher (San Angelo) Reservoir, Tom Green County, Texas. 1977
Occidental Chemical Company Swift Creek Chemical Complex, Hamilton County, Florida. 1978
Oceanographic Observations in the Georgia Bight: Data Report for R. V. EASTWARD Cruises E-13-73 (4-11 September) and E-19-73 (8-9 December 1973). 1975
Oconomowoc Lake, Waukesha County, Wisconsin. 1975
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
Oradell Reservoir, Bergen County, New Jersey. 1976
Ordination of Aquatic Nematode Communities as Affected by Stream Water Quality. 1979
Otter Lake, Cayuga County, New York. 1974
Owasco Lake, Cayuga County, New York. 1974
Pactola Reservoir, Pennington County, South Dakota. 1976
Paulinskill Lake, Sussex County, New Jersey. 1976
Pelican Lake, Bottineau County, North Dakota. 1976
Pelican Lake, St. Louis County, Minnesota. 1974
Permuted Index to Current Eutrophication Literature. 1974
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
Phosphate Removal by Activated Sludge. Amenability Studies at Baltimore, Maryland. 1969
Phosphate Removal by Activated Sludge. Amenability Studies at Smithfield, North Caroline. 1968
Phosphate Retention by Lake Sediments. 1973
Phosphorus Enrichment, Silica Utilization, and Biogeochemical Silica Depletion in the Great Lakes. 1986
Phosphorus uptake and release by Lake Ontario sediments / 1975
Physical chemical and microbiological methods of solid waste testing : four additional procedures / 1974
Pickwick Lake, Colbert and Lauderdale Counties, Alabama. Tishomingo County, Mississippi. Harding County, Tennessee. 1976
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