Search Results for the EPA National Library Catalog

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Record of decision : East Helena smelter site process ponds operable unit, East Helena, Montana / 1989
Record of decision, decision summary and responsiveness summary for interim response action : Commencement Bay Nearshore/Tideflats Superfund site, operable unit 07 (Asarco demolition) Tacoma, Washington / 1990
Recovery of lime and magnesium in potable water treatment 1976
Recovery of Stream Macrobenthic Communities from the Effects of Acid Mine Drainage. 1973
Recovery Process for Complexed Copper-Bearing Rinse Waters: A State-of-the-Art Review of the Advantages and Disadvantages of Currently Available Technologies. 1984
RED facts : diclofop-methyl / 2000
Red River of the North Basin. 1972
Reduction of disinfection by-product precursors by nanofiltration / 1992
Reexamination of the Coeur d'Alene River, September 1971. 1971
Region 10 environmental indicators FY 89 summary. 1990
Regional Applications of an Index of Biotic Integrity for Use in Water Resource Management. 1988
Regional Characteristics of Land Use in Northeast and Southern Blue Ridge Province: Associations with Acid Rain Effects on Surface-Water Chemistry. 1991
Regional Efforts Through the LJC to Address Contaminated Bottom Sediment Problems in the Great Lakes. 1992
Regional Estimates of Acid Mine Drainage Impact on Streams in the Mid-Atlantic and Southeastern United States. 1990
Regional Inventory for Critical Natural Areas, Wetland Ecosystems, and Endangered Species Habitats of the Albemarle-Pamlico Estuarine Region. Phase 3 Report. 1993
Regional Patterns and Local Variability of Dry and Occult Deposition Strongly Influence Sulfate Concentrations in Maine Lakes. 1988
Regional Relationships between Geomorphic/Hydrologic Parameters and Surface Water Chemistry Relative to Acidic Deposition. 1989
Regulations on the disposal of arsenic residuals from drinking water treatment plants / 2000
Regulatory Impact Analysis (RIA) for the Proposed Great Lakes Water Quality Guidance (for Microcomputers). 1993
Regulatory Impact Analysis: Benefits and Costs of Final Surface Water Treatment Rule. 1989
Regulatory Impact Analysis: Benefits and Costs of Proposed Surface Water Treatment Rule and Total Coliform Rule. 1987
Relations Among River Stage, Rainfall, Ground-Water Levels, and Stage at Two Missouri River Flood-Plain Wetlands. 2001
Relationship between mesoscale acid precipitation and meteorological factors / 1982
Relationship of Catchment Topography and Soil Hydraulic Characteristics to Lake Alkalinity in the Northeastern United States. 1989
Relative atmospheric loadings of toxic contaminants and nitrogen to the Great Waters / 1993
Remedial actions at hazardous waste sites : survey and case studies / 1981
Remedial Actions at Hazardous Waste Sites: Survey and Case Studies. 1981
Remedial Investigation/Feasibility Study Work Plan. Revision One. Volume 1 of 2. Alaska Railroad Corporation, Anchorage Terminal Reserve. 2005
Remediation technologies screening matrix and reference guide / 1994
Remediation technologies screening matrix and reference guide : final] / 1994
Remediation technologies screening matrix and reference guide : second edition / 1994
Remote monitoring of organic carbon in surface waters / 1981
Remote monitoring of organic carbon in surface waters {microform} / 1981
Remote Sensing Report, San Francisco Bay Area, April-July 1972. Volume 2. 1973
Remote Sensing Study of Electric Generating Station Thermal Discharges to Barnegat Bay and Great Egg Harbor, New Jersey. 1973
Removal of algae in natural bodies of water / 1976
Removal of Beryllium from Drinking Water by Chemical Coagulation and Lime Softening. 1992
Removal of Color from the Water of Waikoloa Stream South Kohala District, Island of Hawaii. 1970
Removal of Dissolved Contaminants from Mine Drainage. 1972
Removal of endocrine disruptor chemicals using drinking water treatment processes. 2001
Removal of endocrine disruptor chemicals using drinking water treatment processes. 2001
Removal of endocrine disruptor chemicals using drinking water treatment processes. 2001
Removal of Heavy Metals from Mine Drainage by Precipitation. 1973
Removal of Manganese from Mine Drainage by Ozone and Chlorine. 1975
Removal of saline water from aquifers, 1968
Report of EPA efforts to replace freon for the determination of oil and grease and total petroleum hydrocarbons : phase II. 1995
Report of the national workshop on instream biological monitoring and criteria / 1987
Report of Waste Source Inventory and Evaluation, Dade County, Florida. 1971
Report on economic effects of mineral content in water supplies 1967
Report on Mineralization of Ground and Surface Waters of the South Platte Valley in Colorado 1951
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