Search Results for the EPA National Library Catalog

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Evaluation of the algal assay procedure / 1976
Evaluation of the RBC process for municipal wastewater treatment / 1978
Evaluation of the Technicon block digestor system for total kjeldahl nitrogen and total phosphorus / 1978
Evaluation of Wastewater Treatment Plants for BNR Retrofits Using Advances in Technology. 1999
Examination of the Reproductive Effects of Tricresyl Phosphate Administered to Long-Evans Rats. 1987
Exchange of nitrogen and phosphorus with sediment of the brackish water marshes of Lavaca Bay, Texas : thesis / 1975
Experimental Apparatus for Evaluating Kinetics of Available Phosphorus Release from Aquatic Particulates. 1982
Experimental Studies on Phytoplankton Succession in Cayuga Lake. 1973
Experiments and experiences in biomanipulation : studies of biological ways to reduce algal abundance and eliminate blue-greens / 1982
Exposure of Apple Thinners to Parathion Residues. 1974
Exposure of Fertilizer Mixing Plant Workers to Disulfoton. 1978
Exposure of Pesticide Formulating Plant Workers to Parathion. 1978
Exposure to Organic Phosphorus Sprays and Occurrence of Selected Symptoms. 1957
Exposure to Parathion, Effect on General Population and Asthmatics. 1964
Exposure to Parathion, Measurement by Blood Cholinesterase Level and Urinary p-Nitrophenol Excretion. 1961
Extension of multi-residue methodology / 1977
Facility Plan Addendum No. 2 - Final, Devils Lake, North Dakota 1988
Factors Affecting Nutrient Trends in Major Rivers of the Chesapeake Bay Watershed. 2000
Factors affecting phosphorus transport at a conventionally-farmed site in Lancaster County, Pennsylvania, 1992-95 1996
Factors Affecting the Efficiency of Some Estimators of Fluvial Total Phosphorus Load. 1988
Factors Regulating the Spatial and Temporal Distribution of 'Cladophora' and 'Ulothrix' in the Laurentian Great Lakes. 1983
Fate and effects of nitrogen and phosphorous in shallow vegetated aquatic ecosystems / 2006
Feasibility of overland flow for treatment of raw domestic wastewater / 1974
Feasibility of overland-flow treatment of feedlot runoff / 1974
Felton-Herron Creek, Mill Creek, Michigan; Summary Pilot Watershed Report. 1978
Ferric chloride and organic polyelectrolytes for the removal of phosphorus / 1974
Fertilizer and pesticide movement from citrus groves in Florida flatwood soils / 1977
Field and Laboratory Investigations to Evaluate the Influence of Nitrilotriacetic Acid (NTA) on Eutrophication. 1970
Field and Laboratory Toxicity Tests with Shrimp, Mysids, and Sheepshead Minnows Exposed to Fenthion. 1986
Field Disposal of Methyl Parathion Using Acidified Powered Zinc. 1981
Field Modelling in the Highland Silver Lake Watershed. 1984
Field study of nutrient control in a multicell lagoon / 1980
Field Study of the Safety of Abate for Treating Potable Water and Observations on the Effectiveness of a Control Programme Involving both Abate and Malathion. 1968
Fifth year review of Canada-United States Great Lakes water quality agreement / 1978
Final environmental impact statement : Bemidji wastewater treatment system, Beltrami County, Minnesota / 1981
Final Environmental Impact Statement: Patuxent Wastewater Treatment Facilities, Anne Arundel County, Maryland. 1983
Final guideline document : control of fluoride emissions from existing phosphate fertilizer plants. 1977
First annual reports of the EPA IFYGL projects / 1973
Five Year Program Strategy for Great Lakes National Program Office, 1986-1990. 1985
Flow phase distribution of nitrogen and phosphorus in the Potomac River system 1986
Fluidized Bed Clarification as Applied to Wastewater Treatment. 1972
Flushing Pattern of Certain Tidal Streams in Delaware. 1972
Formation and management of an expert toxicological review team for liternature search. evaluation and organization of currently available rapid toxicological tests. : 1978
Fort Hall Source Apportionment Study. 1999
Full-Scale Evaluation of Luxury Uptake for Phosphorus Removal. 1970
Full-scale operation of a single-stage nitrification-denitrification plant / 1977
Full-Scale Study of Sequencing Batch Reactors. 1983
Function of Marshes in Reducing Eutrophication of Estuaries of the Middle Atlantic Region. 1974
FWPCA methods for chemical analysis of water and wastes. 1969
Gas Chromatographic Method for the Determination of Low Concentrations of Abate in Water. 1968
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