Search Results for the EPA National Library Catalog

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Pollution signature : a commentary on the demise and rebirth of the Tittabawassee River, and other factors affecting the ecology and stewardship of the Tittabawassee River Basin : a research report / 2003
Pollution Survey of Flint River and Lake Seminole in the Vicinity of Bainbridge, Georgia. 1960
Pond & river / 1996
Population biology in small Hawaiian streams 1982
Portrait of a river : the ecological baseline of the Cacapon River / 1995
Potential agricultural pollution sources : Detroit River - U.S. / 1987
Potomac River Basin baseline water quality monitoring network. 0
Potomac River environmental flow-by study 1981
Potomac River water quality network. 1957
Potomac River Water Quality, Washington, D.C., Metropolitan Area. 1969
Practical Guide to Water Quality Studies of Streams. 1969
Practical Tools and Concepts for Environmental Audits and Assessments. 1993
Precipitation-runoff model for analysis of the effects of water withdrawals on streamflow, Ipswich River Basin, Massachusetts 2000
Predicting Concentration of Total Phosphorus and Chlorophyll 'a' in a Lake with Short Hydraulic Residence Time. 1985
Predicting Peak Flow of Small Watersheds by Use of Channel Characteristics. 1972
Predicting toxic waste concentrations in community drinking water supplies analysis of vulnerability to upstream industrial discharges / {microform} : 1984
Predicting Variations in Energy Flow through a Semi-Controlled Lotic Ecosystem. 1971
Prediction of Seasonal-Low Streamflow Quantities. 1971
Predictions of stream wood recruitment from riparian forests : effects of data resolution / 2000
Predictive Techniques for Water Quality: Inorganics. 1962
Preimpoundment hydrologic conditions in the Swatara Creek (1981-84) and estimated postimpoundment water quality in and downstream from the planned Swatara State Park Reservoir, Lebanon and Schuylkill counties, Pennsylvania 1988
Preliminary Economic Base Study of the Animas-LaPlata Pilot Project Watersheds in the Four Corners Area of the Colorado River Basin. 1962
Preliminary effects of streambank fencing of pasture land on the quality of surface water in a small watershed in Lancaster County, Pennsylvania 2000
Preliminary evaluation of chemical migration to groundwater and the Niagara River from selected waste-disposal sites / 1986
Preliminary investigation of microbial indicators in the assessment of Oregon streams 1998
Preliminary Report on Water Quality and Use Aspects of the Price River Basin in East Central Utah. 1963
Preliminary Studies-Arkansas River and Tributaries, Tulsa to Muskogee, Oklahoma. 1966
Preliminary Study Comparative Winter Survival of Fecal Bacteria in Subarctic River. 1974
Preliminary Study of Potential Sites for Water-Supply Reservoirs in West and Southeast Alabama. 1972
Preliminary Study of the Relationships Between Stream Water Quality and Watershed Characteristics for the Truckee River. 1970
Preliminary Study of the Taste and Odor Problems in Grand Lake, Ohio and the Wabash River, Indiana. 1969
Preliminary water quality assessment of lower Kenai Peninsula salmon-bearing streams 2004
Preliminary Water Quality Control Control Study. Dolores River, Paradox Valley, Montrose Country, Colorado. 1964
Preliminary Water Quality Control Method Study. Virgin River, Utah, Arizona, and Nevada. Appendix B 1. 1965
Present Municipal Water Use Including Information on Deficiencies in Supply in the Arkansas-White-Red Basins. 1952
Presentation of EPA Region 10's ecological risk analysis concepts and implications for management in the Snake River : Twin Falls, Idaho, July 19, 1993 / 1993
Principle use of some present stream survey equipment 1963
Probability distribution of low flows / 1963
Probability-of-use criteria for the family Salmonidae / 1978
Probability-of-Use Criteria for the Family Salmonidae. 1978
Probable effects of acid precipitation on Pennsylvania waters / 1980
Procedures for ecological site inventory with special reference to riparian-wetland sites / 1992
Proceedings / 1979
Proceedings of a symposium on direct tracer measurement of the reaeration capacity of streams and estuaries, Atlanta, Georgia, July 7-8, 1970 / 1972
Proceedings of the Conference on the Apalachicola Drainage System, 23-24 April 1976, Gainesville, Florida / 1977
Proceedings of the Executive Session of the Louisiana Stream Control Commission Baton Rouge, Louisiana June 19th, 1968. 1968
Proceedings of the first and second USA-USSR symposia on the effects of pollutants upon aquatic ecosystems. 1978
Proceedings of the Hydrology Seminar. Present Hydrologic Research in Wyoming and Future Needs, University of Wyoming, 25-26 June 1970. 1971
Proceedings of the National Symposium on Data and Instrumentation for Water Quality Management at Wisconsin Univ., Madison, on 21-23 July 1970. 1970
Proceedings of the Symposium on Restoration Planning for the Rivers of the Mississippi River Ecosystem / 1993
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