Search Results for the EPA National Library Catalog

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Showing: Items 551 - 600
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Select Item Title Year Published
Modeling the Impact of Conservation Tillage Practices on Pesticide Concentrations in Ground and Surface Waters. 1987
Modelling Epicodic Acidification of Surface Waters: The State of Science. 1992
Molecular Spectral Interference in the Determination of Arsenic by Furnace Atomic Absorption. 1977
Monitoring Environmental Changes in Lakes Using Algal Microfossils. 1991
Monitoring groundwater quality : methods and costs / 1976
Monitoring to detect previously unrecognized pollutants in surface waters / 1977
Monitoring to Detect Previously Unrecognized Pollutants in Surface Waters--Appendix: Organic Analysis Data. 1977
Multimedia levels trichloroethylene / 1977
Multivariate Analyses (Canonical Correlation and Partial Least Square (PLS)) to Model and Assess the Association of Landscape Metrics to Surface Water Chemical and Biological Properties using Savannah River Basin Data. 2002
National Conference on Tools for Urban Water Resource Management and Protection : proceedings, February 7-10, 2000, Chicago, IL. 2000
National Conference on Tools for Urban Water Resource Management and Protection : proceedings, February 7-10, 2000, Chicago, IL. 2000
National Health and Environmental Effects Research Laboratory, Western Ecology Division: Research Update, July 1997. 1997
National listing of state fish and shellfish consumption advisories and bans (printout current through July 22, 1993) 1993
National management measures to control nonpoint source pollution from forestry. 2005
National management measures to protect and restore wetlands and riparian areas for the abatement of nonpoint source pollution / 2005
National management measures to protect and restore wetlands and riparian areas for the abatement of nonpoint source pollution : draft. 2001
National statistical assessment of rural water conditions : report / 1984
National strategy for the development of regional nutrient criteria 1998
National stream survey database guide / 1990
National Summary of State Water Quality Standards: Phophorus, September 1980. 1980
National surface water survey : eastern lake survey (phase I - synoptic chemistry) analytical methods manual / 1986
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 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: 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
Near infrared aerial photo-detection of Zostera Japonica communities in Pacific Northwest estuarine intertidal habitats / 2000
Negatively buoyant jets in a cross flow / 1973
Network Analysis of Conjunctively Operated Ground Water-Surface Water Systems. 1974
New Developments in Slow Sand Filtration. 1900
New methods for modeling the transport of metals from mineral processing wastes into surface waters / 1991
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
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
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