Search Results for the EPA National Library Catalog

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Select Item Title Year Published
Nationwide Urban Runoff Program: The Piscataway Creek Watershed Study, Final Report. 1983
NCASI (National Council for Air and Stream Improvement) Enhancements of QUAL-II Model. 1985
Nest Lake, Kandiyohi County, Minnesota. 1974
Network Design Factors for Assessing Temporal Variability in Ground-Water Quality. 1989
New Hampshire Estuaries Project: Monitoring Plan. 2008
New Hampshire Estuaries Project: Water Quality Funding Sources, 2004. 2004
Nitrates. 1971
Nitrification and denitrification facilities : wastewater treatment. 1973
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 in Water. An Annotated Selected Bibliography of Their Biological Effects. 1965
Nitrogen and phosphorus losses from agronomy plots in North Alabama / 1974
Nitrogen Budget of a North Carolina Estuary. 1974
Nitrogen Loading Sources and Eutrophication of the Neuse River Estuary, North Carolina: Direct and Indirect Roles of Atmospheric Deposition. 1995
Nitrogen removal from wastewaters 1970
Nitrogen Removal from Wastewaters. 1970
Nitrogen Removal Today. 1971
Nitrogen Sources and Cycling in Natural Waters. 1973
Nitrogenous compounds in the environment. 0
Non-Point Source Studies on Chesapeake Bay. II. Nutrients in Land Runoff from Rhode River Watersheds in 1975 and 1976. 1977
Nonpoint source - stream nutrient level relationships : a nationwide study / 1977
Nonpoint source -- stream nutrient level relationships : a nationwide study. Supplement 1- / 1979
Nonpoint Source Pollution: Land Use and Water Quality. 1993
Nonpoint-Source Pollution in Surface Waters: Associated Problems and Investigative Techniques. 1975
North American project--a study of U.S. water bodies : a report for the Organization for Economic Cooperation and Development / 1977
North Waubay Lake, Day County, South Dakota. 1976
Northboro, Hudson, Maynard, and Billerica Impoundments, Worcester and Middlesex Counties, Massachusetts. 1975
Northwood Stormwater Technologies. A Final Report to the New Hampshire Estuaries Project. 2008
Novel Delivering of Nutrients and Oxygen to Aid In situ Bioreclamation. 1990
Numeric Nutrient Criteria for Sarasota Bay. 2010
Nutrient addition to restore salmon runs : is it consistent with environmental policies and regulations. 2001
Nutrient chemistry of a large, deep lake in subarctic Alaska / 1978
Nutrient control by plant modification at El Lago, Texas / 1976
Nutrient Control in the Chesapeake Bay: A Statement Issued by the Scientific and Technical Advisory Committee (STAC), Chesapeake Bay Program. 1986
Nutrient controls on biocomplexity of mangrove ecosystems. 2006
Nutrient Criteria For Florida Lakes: A Comparison of Approaches. 2002
Nutrient criteria technical guidance manual : lakes and reservoirs / 2000
Nutrient criteria technical guidance manual : rivers and streams / 2000
Nutrient criteria technical guidance manual estuarine and coastal marine waters. {microform} : 2001
Nutrient criteria technical guidance manual lakes and reservoirs / {computer file} : 2000
Nutrient Criteria Technical Guidance Manual: Wetlands. 2007
Nutrient diversion : resulting lake trophic state and phosphorus dynamics / 1977
Nutrient enrichment action agenda for the Gulf of Mexico : first generation-management committee report. 1994
Nutrient Enrichment of Chesapeake Bay and Its Impact on the Habitat of Striped Bass: A Speculative Hypothesis. 1985
Nutrient Leaching from Conifer Needles in Relation to Foliar Apoplast Cation Exchange Capacity. 1992
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 Productivity Studies in San Francisco Bay. 1965
Nutrient Reduction Cost Effectiveness Analysis, 1996 Update. 1998
Nutrient Regeneration by Zooplankton in Southern Lake Huron. 1983
Nutrient Release Rates from the Sediments of Saginaw Bay, Lake Huron. 1989
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