Search Results for the EPA National Library Catalog

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Select Item Title Year Published
Lake Michigan studies special report. 0
Lake Superior periphyton in relation to water quality / 1972
Lake Union sediment investigation : Seattle, Washington, March 20-21, 1984 / 1985
Leachate testing and evaluation for freshwater sediments / 1994
Letter from Basf Corp to UEPA Re: Report on the Study of Palatinol A (Dep) (Zst Test Substance No. 92/187) in the Ames Test w/Attachments & Cover Letter Dated 05/06/1994 (Sanitized). 1994
Letter from BASF Corp to USEPA Regarding Submission of Health and Safety Data Subject to 8D Reporting with Attachments, Dated 05/05/1994 (Sanitized). 1994
Letter from Chemical Manufacturers Association to USEPA Regarding Information on the Enclosed Final Reports on 2-mercaptobenzothiazole with Attachments. 2000
Life in lakes and rivers. 1951
Life of the pond 1967
Limnological methods / 1948
Limnological organic analyses by quantitative dichromate oxidation. 1962
Limnological surveillance of the nearshore zone of Lake Erie in central and eastern Ohio : a proposal of research / 1978
Limnological survey of western Lake Erie / 1955
Limnology now a paradigm of planetary problems / 1994
Limnology of shallow waters 1975
Lipids in freshwater ecosystems / 1999
Listing of aquatic biological stream investigations : June, 1968 to January, 1974 / 1974
Living waters : guiding the protection of freshwater biodiversity in Massachusetts / 2003
Long Term Toxicity Test (3 Months) of DC 345 Fluid with Cover Letter Dated 04/20/1994 (In French). 1994
Long Term Toxicity Tests (3 Months) of DC 345 Fluid with Cover Letter Dated 04/20/1994 (In French). 1994
Long-term benthic monitoring studies in the freshwater portion of the Potomac River : final report / 1992
Long-Term Ecological Measurements : report of a conference, Woods Hole, Massachusetts, March 16-18, 1977 / 1983
Lower Potomac River Basin : environmental assessment of stream conditions / 1998
Macroinvertebrate survey of the Allegheny River, New York, 1975 1980
Macroinvertebrate survey of the Delaware River in New York State 1982
Macroinvertebrate survey of the upper Hudson River, New York, 1972 : prepared for and in cooperation with Bureau of Monitoring & Surveillance, Division of Pure Waters, New York State Department of Environmental Conservation / 1974
Macrophyte surveys of littoral habitats in Great Lakes' areas of concern : the Bay of Quinte, Hamilton harbour, and Severn Sound, 1988 to 1991 / 1993
Man-made lakes; proceedings. 1966
Managing lakes and reservoirs / 2001
Managing river flows for biodiversity : balancing human demands and ecosystem needs / 2000
Manual for the culture of selected freshwater invertebrates 1981
Manual of aquatic plants. 1966
Manual of aquatic plants. 1969
Manual on methods for the assessment of secondary productivity in fresh waters 1971
Measures to minimize harm to Lampsilis higginsi caused by passage of commercial navigation vessels in the upper Mississippi River 1997
Mechanisms of Episodic Acidification in Low-Order Streams in Maine, USA. 1992
Mercury Concentrations in Fish in Lake Oahe, South Dakota, April 16 to September 27, 1972. 1973
Methods and measurements of periphyton communities : a review / 1979
Methods for assessment of fish production in fresh waters 1978
Methods for characterizing stream habitat as part of the National Water-Quality Assessment Program / 1993
Methods for collecting benthic invertebrate samples as part of the National Water-Quality Assessment Program / 1993
Methods for measuring the toxicity and bioaccumulation of sediment-associated contaminants with freshwater invertebrates. 1994
Methods for measuring the toxicity and bioaccumulation of sediment-associated contaminants with freshwater invertebrates. 2000
Methods to estimate aquatic habitat variables / 1984
Methylethylketoxime Report with Cover Letter dated 021287. 1987
Microbial processes in reservoirs 1985
Microbiology of the aquatic environment 1981
Microorganic matter in water : a symposium presented at the seventy-first annual meeting, American Society for Testing and Materials, San Francisco, Calif., 23-28 June, 1968. 1969
Middle Potomac River Basin : environmental assessment of stream conditions / 1998
Midwestern wetland flora : field office guide to plant species / 1997
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