Search Results for the EPA National Library Catalog

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Select Item Title Year Published
Nitrates in Groundwater Resulting from Manure Applications to Irrigated Croplands. 1982
Nitrates. 1971
Nitrite-Accelerated Photochemical Degradation of Cellulose as a Pretreatment for Microbiological Conversion to Protein. 1973
Nitrogen and irrigation management to reduce return-flow pollution in the Columbia Basin / 1976
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
Nitrogen in Industry. 1971
Nitrogen Removal from Wastewaters. 1970
North Carolina barrier islands wastewater management final environmental impact statement / 1984
North Waubay Lake, Day County, South Dakota. 1976
Northboro, Hudson, Maynard, and Billerica Impoundments, Worcester and Middlesex Counties, Massachusetts. 1975
Nutrient Limitation and Adaption of Microbial Populations to Chemical Transformations. 1986
Nutrient Management. Supplement to the Journal of Soil and Water Conservation Volume 49, Number 2. 1994
Nutrient Regeneration by Zooplankton in Southern Lake Huron. 1983
Nutrient Removal from Wastewater by Physical-Chemical Processes. 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
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
On-Line Colorimetric Analyzers for Monitoring Nitrate-Nitrite, Ammonia, Orthophosphorus and Total Hydrolyzable Phosphorus in Wastewater-Treatment Process Streams. 1974
One Mgd Ion Exchange Plant for Removal of Nitrate from Well Water. 1984
Oradell Reservoir, Bergen County, New Jersey. 1976
Otter Lake, Cayuga County, New York. 1974
Overland recycling system for animal waste treatment / 1979
Owasco Lake, Cayuga County, New York. 1974
Pactola Reservoir, Pennington County, South Dakota. 1976
Particle size distribution of nitrate aerosols in the Los Angeles air basin / 1977
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
Photochemical aerosol dynamics / 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
Piscataway Creek Watershed Model: A Stormwater and Nonpoint Source Management Tool. 1982
Pleasant Hill Reservoir, Ashland and Richland Counties. 1975
Pollution control manual for irrigated agriculture / 1978
Pollution Studies of the Regional Ogallala Aquifer at Portales, New Mexico. 1972
Pompton Lakes, Passaic County, New Jersey. 1976
Possibility of Reducing Nitrogen in Drainage Water by on Farm Practices 1972
Powder Mill Pond, Hillsborough County, New Hampshire. 1974
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