Search Results for the EPA National Library Catalog

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National surface water survey : national stream survey, phase I - pilot survey--field operations report / 1987
National surface water survey : stream survey (pilot, middle-Atlantic phase I, southeast screening, and middle-Atlantic episode pilot): analytical methods manual / 1987
National Surface Water Survey Eastern Lake Survey (Phase II-Temporal Variability). Quality Assurance Plan. 1988
National Surface Water Survey, National Stream Survey. Phase 1. Pilot Survey, Summary of Quality Assurance Data Results. 1987
National Surface Water Survey: Eastern Lake Survey - Phase 2 Northeastern Lakes, Database Dictionary. 1991
National Surface Water Survey: Eastern Lake Survey, Phase 1 (ELS-1), 1984 (ASCII Tape). 1986
National Surface Water Survey: Eastern Lake Survey, Phase 1 (ELS-1), 1984 (for Microcomputers). 1986
National Surface Water Survey: Eastern Lake Survey, Phase 1 (ELS-1), 1984 (SAS Data Tape). 1986
National Surface Water Survey: Eastern Lake Survey, Phase 1 (ELS-1), 1984 (SAS Export Data Tape). 1986
National Surface Water Survey: Eastern Lake Survey, Phase I (ELS-1), 1984 (EBCDIC Tape). 1986
National Technical Information Service: Records of Decision Abstracts FY82-FY85. 1986
National Water Program: Best Practices and End of the Year Performance Report, FY 2008. 2009
National Water Program: Best Practices and End of the Year Performance Report. Fiscal Year 2009. 2010
National water quality inventory 1992 report to Congress. 1994
National water quality inventory : 1984 report to Congress. 1985
National water quality inventory : 1988 report to the Congress. 1990
National water quality inventory : 1990 report to the Congress. 1992
National water quality inventory : 1992 report to Congress. 1994
National water quality inventory : 1994 report to Congress. 1995
National water quality inventory : 2000 report. 2002
National Water Quality Inventory: 1986 Report to Congress. 1987
Nationwide Urban Runoff Program, Austin, Texas. Appendix H - Public Participation. Addenda to the Final Report. July 1979-January 1983. 1983
Natural salinity of the Colorado River 1975
Near infrared aerial photo-detection of Zostera Japonica communities in Pacific Northwest estuarine intertidal habitats / 2000
Nebraska's sandhills lakes 1977
Negatively buoyant jets in a cross flow / 1973
Network Analysis of Conjunctively Operated Ground Water-Surface Water Systems. 1974
Neutradesulfating Treatment Process for Acid Mine Drainage. 1971
Neutralization of Acidic Wastes by Crushed Limestone. 1974
Neutralization of high ferric iron acid mine drainage / 1970
Neutralization of High Ferric Iron Acid Mine Drainage. 1970
Neutrolosis Treatment of Acid Mine Drainage. 1971
New Developments in Slow Sand Filtration. 1900
New Indicators of Coastal Ecosystem Conditions. 2005
New methods for modeling the transport of metals from mineral processing wastes into surface waters / 1991
New Mine sealing techniques for water pollution abatement, 1970
New Technology for Water Pollution Control. 1971
New York's pure waters progress '69. 1969
News-Notes Number 23: The Condition of the Environment and the Control of Nonpoint Sources of Water Pollution. 1992
NH Department of Environmental Services Shellfish program Activites, January 2004 - December 2004. A Final Report to the New Hampshire Estuaries Project. 2005
Nitrate Occurence in U.S. Waters (and Related Questions). A Reference Summary of Published Sources from an Agricultural Perspective. 1991
Nitrogen-ammonia/nitrate/nitrite : water quality standards criteria summaries a compilation of state/federal criteria / 1988
Non-Point Sources of Water Pollution. Proceedings of a Southeastern Regional Conference Held at Blacksburg, Virginia on May 1-2, 1975. 1975
Nonindigenous species : an emerging issue for the EPA. 2001
Nonpoint Source Sampling Design Report. Areawide Waste Treatment Management Plan for the Greater Houston Area. 1977
Northern Great Plains Resource Program, Water Work Group Report. 1974
Northern Great Plains Resources Program. Water Quality Subgroup Report. 1974
NPDES Compliance Monitoring Report: Oracle Ridge Mine, San Manuel, Arizona. 1992
NPDES Compliance Monitoring Report: Paloverde Decline, Pima County, Arizona. 1992
NPDES Compliance Monitoring Report: Silver Bell Mine, Pima County, Arizona. 1992
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