Search Results for the EPA National Library Catalog

Items Found: 814
Showing: Items 601 - 650
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Proceedings: Wetlands Conference (1st) Held on June 20, 1973 at Storrs, Connecticut. 1973
Process design manual for sulfide control in sanitary sewerage systems / 1974
Program and Abstracts. Symposium on Nonbiological Transport and Transformation of Pollutants on Land and Water: Processes and Critical Data Required for Predictive Description, Held at Gaithersburg, Maryland on May 11-13, 1976. 1976
Project Hypo : an intensive study of the Lake Erie central basin hypolimnion and related surface water phenomena / 1972
Protocol for evaluating the nitrogen status of lake sediments / 1974
Quality of water in freshwater aquifers in southwestern Louisiana / 1989
Quantification of Changes in Lakewater Chemistry in Response to Acidic Deposition. 1990
Questa baseline and pre-mining ground-water quality investigation. 2, Low-flow (2001) and snowmelt (2002) synoptic/tracer water chemistry for the Red River, New Mexico / 2003
Radionuclides notice of data availability technical support document / 2000
Randomized Intervention Analysis of the Behavior of Bear Brook Watershed, Maine. 1992
Rapid chemical and biological techniques for water monitoring / 2009
Rates of Direct Photolysis in Aquatic Environment. 1977
Reaction products from the chlorination of seawater / 1981
Reactions of potential organic water contaminants with aqueous chlorine and monochloramine / 1991
Reactions That Modify Chemistry in Lakes of the National Surface Water Survey. 1988
Recent Trends in the Acid-Base Status of Surface Waters in Maine, USA. 1993
REDEQL. EPAK : aqueous chemical equilibrium computer program / 1980
Reduction of Hexachloroethane to Tetrachloroethylene in Groundwater. 1986
Regional Approach for Assessing Attainable Surface Water Quality: An Ohio Case Study. 1988
Regional Characteristics of Land Use in Northeast and Southern Blue Ridge Province: Associations with Acid Rain Effects on Surface-Water Chemistry. 1991
Regional characterization of water quality proceedings of a symposium held during the Third Scientific Assembly of the International Association of Hydrological Sciences at Baltimore, Maryland, USA, May 1989 / 1989
Regional ground-water flow and geochemistry in the Midwestern basins and arches aquifer system in parts of Indiana, Ohio, Michigan, and Illinois / 2000
Regional hydrodynamics and hydrochemistry of the uranium-bearing Oakville aquifer (Miocene) of South Texas / 1982
Regional Relationships between Geomorphic/Hydrologic Parameters and Surface Water Chemistry Relative to Acidic Deposition. 1989
Relations between quality of urban runoff and quality of Lake Ellyn at Glen Ellyn, Illinois / 1987
Relationship between Annual Runoff and Watershed Area for the Eastern United States. 1988
Relationship of Drinking Water Chlorination and Serum Lipids in Human Populations. 1987
Relaxation between Pore Water Chemistry and Benthic Fluxes of Nutrients and Manganese in Narragansett Bay, Rhode Island. 1980
Report on Pollution of the Merrimack River and Certain Tributaries. Part IV. Pilot Plant Study of Benthal Oxygen Demand. 1966
Research activity descriptors : FY 89. 1989
Research activity descriptors, FY89 : October 1988-September 1989 : a contribution to the National Acid Precipitation Assessment Program. 1989
Research to Determine the Environmental Response to the Deposition of Spoil on Salt Marshes Using Diked and Undiked Techniques. 1974
Residual aluminum in filtered water 1987
Response of surface water chemistry to the Clean Air Act Amendments of 1990. 2003
Retrospective Assessment of the Maryland Department of Natural Resources Acid Deposition Program. 1994
River as a Chemical Reactor. Volume I. 1971
River as a Chemical Reactor. Volume II. 1971
River as a Chemical Reactor. Volume III. 1971
Rocky Mountain Acidification Study. 1983
Role of Nitrate in the Acidification of Streams in the Catskill Mountains of New York. 1992
Role of Precipitation Chemistry Versus Other Watershed Properties in Wisconsin Lake Acidification. 1986
Role of Sediments in Eutrophication - A Preliminary Study. 1972
Runoff of Water and Nutrients from Watersheds Tributary to Cayuga Lake, New York. 1974
Sampling ambient and effluent waters for trace metals. 1997
Santee River Basin: A Review and Summary of Available Information on Physical, Chemical and Biological Characteristics and Resources. 1973
Scope and assessment of aquatic effects due to acidic deposition.{microfiche} by Kent W. Thornton and Daniel H. McKensie. 1990
Seasonal Effects on Microbial Transformation Rates of an Herbicide in a Freshwater Stream: Application of Laboratory Data to a Field Site. 1986
Sediment flux modeling / 2001
Sediment Quality and Polychlorinated Biphenyls in the Lower Neponset River, Massachusetts, and Implications for Urban River Restoration. 2004
Sediment Quality Criteria Methodology Validation: Calculation of Screening Level Concentrations from Field Data. 1986
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