Search Results for the EPA National Library Catalog

Items Found: 491
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Mercury pollution control in stream and lake sediments 1972
Metals in Ground Water: Sampling Artifacts and Reproducibility. 1992
Methanol requirement and temperature effects in wastewater denitrification. 1970
Methodology Study to Develop Evaluation Criteria for Wild and Scenic Rivers. Report of Water Quality Subproject. 1971
Methods manual for Perdido Bay citizens monitoring program / 1989
Microbial Modifications of Ground Water. 1972
Microbial Release of Soluble Phosphate in an Activated Sludge Environment. 1971
Modeling and Optimization of Thermal Pollution Control Systems. 1972
Monitoring septage addition to wastewater treatment plants / 1979
Mortality, saltwater adaptation and reproduction of fish during gas supersaturation / 1976
Muskegon, Michigan industrial-municipal wastewater storage lagoons : biota and environment / 1977
National surface water survey : national stream survey, phase I - pilot survey--field operations report / 1987
National water quality inventory : 1976 report to the Congress. 1977
National water quality inventory : 1977 report to the Congress. 1978
National Water Quality Network Applications and Development Report no. 7. A Preliminary Report on the Effect of Pump and Pipe Systems on Dissolved Oxygen Concentration. 1963
National Water Quality Network Applications and Development Report. 6. Evaluation of the Field Performance of a Hays Dissolved Oxygen Analyzer. 1962
National Water Quality Network. Report on Analytical Reference Sample Type II, BD-2. 1960
National Water Quality Network. Report on Reference Sample Type 2, BD-4. 1963
Nationwide Urban Runoff Program, Kansas City Area Project: Technical Report. 1983
Nationwide Urban Runoff Program, Tampa, Florida: Water Quality Assessment of the Lower Hillsborough River - Final Report. 1983
Nationwide Urban Runoff Project, Champaign, Illinois: The Biological Impact of Urban Runoff on the Saline Branch Drainage Ditch and Boneyard Creek. 1984
NCASI (National Council for Air and Stream Improvement) Enhancements of QUAL-II Model. 1985
Nearshore Fish and Macroinvertebrate Assemblages Along the Strait of Juan de Fuca Including Food Habits of Nearshore Fish. 1977
Nearshore fish and macroinvertebrate assemblages along the Strait of Juan de Fuca including food habits of the common nearshore fish : final report of three years' sampling, 1976-1979 / 1980
Nearshore Fish and Macroinvertebrate Assemblages Along the Strait of Juan de Fuca Including Food Habits of the Common Nearshore Fish. 1978
New Technology for Treatment of Wastewater by Reverse Osmosis. 1970
Nitrates. 1971
Nitrogen supersaturation in the Columbia and Snake Rivers : summary report. 1971
Nitrogen Supersaturation in the Columbia and Snake Rivers. 1971
Non-Point Source Studies on Chesapeake Bay. III. Relationship between Bacterial Contamination and Land Use in the Rhode River Watershed, and Survival Studies of 'Streptococcus faecalis' in the Estuary. 1977
Non-point water quality modeling in wildland management : a state-of-the-art assessment / 1977
Numerical and graphical procedures for estimation of community photosynthesis and respiration in experimental streams {microform} / 1982
Numerical Model for the Prediction of Transient Water Quality in Estuary Networks. 1972
Nutrient chemistry of a large, deep lake in subarctic Alaska / 1978
Nutrient Transport and Dissolved Oxygen Budget Studies in the Potomac Estuary. 1972
Nutrient-Dissolved Oxygen Dynamics in Chesapeake Bay: The Roles of Phytoplankton and Micro-Heterotrophs under Summer Conditions, 1985. 1987
Nutritional Ecology and Community Structure of the Phytoplankton of Green Bay. 1971
Onsite engineering report of the slurry-phase biological reactor for pilot-scale testing on contaminated soil / 1993
Open Lake Water Quality Conditions for Lake Erie's Central and Eastern Basins, 1985. 1987
Open Lake Water Quality Conditions for Lake Erie's Western, Central and Eastern Basins, 1986. 1988
Operational control procedures for the activated sludge process / 1973
Ordination of Aquatic Nematode Communities as Affected by Stream Water Quality. 1979
Organic Analyses in Water Quality Control Programs - Training Manual. 1980
Organic Analyses in Water Quality Control Programs. Training Manual. 1977
Organic Analyses in Water Quality Control Programs; Instructor's Guide for Conducting the Course. 1980
Organic Analyses in Water Quality Control Programs; Training Manual. 1978
Overview of USEPA/Clear Lake Erie Sediment Oxygen Demand Investigations during 1979. 1987
Oxygen consumption in continuous biological culture. 1971
Oxygen relationships in streams : proceedings of a seminar sponsored by the water supply and water pollution program of the Sanitary Engineering Center, October 30-November 1, 1957. 1958
Oxygen Requirements of Larvae of the Smallmouth Bass, 'Micropterus dolomieui' Lacepede. 1984
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