Search Results for the EPA National Library Catalog

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Altoona Lake, Eau Claire County, Wisconsin. 1974
Ambient water quality criteria recommendations : information supporting the development of state and tribal nutrient criteria ... : rivers and streams in nutrient ecoregion I : Willamette and Central Valleys including all or parts of the states of Washington, Oregon and California and the authorized Tribes within the region. 2001
Ambient water quality criteria recommendations : information supporting the development of state and tribal nutrient criteria for lakes and reservoirs in nutrient ecoregion XIV : Eastern Coastal plain including all or parts of the states of South Carolina, North Carolina, Georgia, Virginia, Maryland, Delaware, New Jersey, New York, Connecticut, Rhode Island, Massachusetts, New Hampshire, and Maine, and the authorized tribes within the ecoregion. 2001
Ambient water quality criteria recommendations : information supporting the development of state and tribal nutrient criteria for rivers and streams in nutrient ecoregion IV : Great Plains grass and shrublands including all or parts of North Dakota, South Dakota, Montana, Wyoming, Nebraska, Colorado, Kansas, Oklahoma, New Mexico, and Texas and the authorized Tribes within the ecoregion / 2001
Ambient water quality criteria recommendations : information supporting the development of state and tribal nutrient criteria for rivers and streams in nutrient ecoregion IV-great plains grass and shrublands including all or parts of: North Dakota, South Dakota, Montana, Wyoming, Nebraska, Colorado, Kansas, Oklahoma, New Mexico, and Texas, and the authorized Tribes within the Ecoregion. 2001
Ambient water quality criteria recommendations : information supporting the development of state and tribal nutrient criteria for rivers and streams in nutrient ecoregion V : south central cultivated Great Plains including all or parts of the states of: Montana, North Dakota, South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, Texas, and New Mexico, and the authorized tribes within the ecoregion / 2001
Ambient water quality criteria recommendations : information supporting the development of state and tribal nutrient criteria for rivers and streams in nutrient ecoregion VIII : nutrient-poor, largely glaciated upper midwest and northeast including all or parts of the states of: Maine, New Hampshire, Vermont, Massachusetts, New York, New Jersey, Pennsylvania, Michigan, Wisconsin, and Minnesota, and the authorized tribes within the ecoregion. 2001
Ambient water quality criteria recommendations : information supporting the development of state and tribal nutrient criteria for rivers and streams in nutrient ecoregion X : Texas-Louisiana coastal and Mississippi alluvial plains including all or parts of the states of: Texas, Louisiana, Mississippi, Arkansas, Tennessee, Kentucky, Missouri, and Illinois, and the authorized tribes within the ecoregion / 2001
Ambient water quality criteria recommendations information supporting the development of state and tribal nutrient criteria for lakes and reservoirs in nutrient ecoregion XIV : eastern coastal plain including all or parts of the states of South Carolina, North Carolina, Georgia, Virginia, Maryland, Delaware, New Jersey, New York, Connecticut, Rhode Island, Massachusetts, New Hampshire, and Maine, and the authorized tribes within the ecoregion. [electronic resource] : 2001
American-Soviet Symposium on Use of Mathematical Models to Optimize Water Quality Management, Kharkov and Rostov-on-Don, USSR, December 9-16, 1975. 1978
An approach to a relative trophic index system for classifying lakes and reservoirs : a preliminary anaysis of National Eutrophication Survey Data collected during the 1972 sampling period. 1974
An ecological evaluation of stream eutrophication. 1973
An evaluation of the Earth resources technology satellite (ER TS-1) multispectral scanner as a tool for the determination of lacustrine trophic state / 1975
An evaluation of the National Eutrophication Survey data, 1977
An evaluation of the National Eutrophication Survey data. 1977
An in situ evaluation of nutrient effects in lakes / 1973
An investigation of ion removal from water and wastewater / 1973
An urgent call to action : report of the State - EPA Nutrient Innovations Task Group / 2009
Angostura Reservoir, Fall River County, South Dakota. 1977
Annual Report of Activities During Fiscal Year 1972. 1972
Annual Report, 1 Jul 1969-30 Jun 1970. 1970
Applicability of land treatment of wastewater in the Great Lakes area basin : impact of wastewater diversion, spray irrigation on water quality in the Muskegon County, Michigan, lakes / 1979
Application of LANDSAT to the surveillance and control of lake eutrophication in the Great Lakes Basin 1977
Application of the OECD eutrophication modeling approach to estuaries ; Effect of eutrophication on fisheries ; An approach for assessing the water quality significance of chemical contaminants in urban lakes / 1979
Applications of growth and sorption algal assays / 1974
Appraisal of the potential for cultural eutrophication of Tocks Island Lake 1971
Aquatic ecosystems : an operational research approach / 1981
Aquatic Fungi of the Lotic Environment and Their Role in Stream Purification. 1973
Arkabutla Reservoir, DeSoto and Tate Counties, Mississippi. 1975
Arrowhead Mountain Lake Chittenden and Franklin Counties Vermont. 1974
Assessment of 1978 water quality conditions in the upper Potomac estuary / 1980
Assessment of the effects of nutrient loadings on Lake Ontario using a mathematical model of the phytoplankton / 1976
Atmospheric contributions of nitrogen and phosphorus / 1973
Atwood Reservoir, Carroll and Tuscarawas Counties, Ohio. 1975
Audubon Lake, McLean County, North Dakota. 1976
Availability of phosphorus in different sources entering the Great Lakes for algal growth / 1979
Badger Lake, Polk County, Minnesota. 1974
Badin Lake, Montgomery and Stanley Counties, North Carolina. 1975
Baldwin Lake, Randolph County, Illinois. 1975
Bankhead Lake and Holt Lock and Dam, Walker and Tuscaloosa Counties, Alabama. 1976
Barkley Lake, Stewart and Montgomery Counties, Tennessee; Trigg and Lyon Counties, Kentucky. 1976
Barren River Reservoir, Allen and Barren Counties, Kentucky. 1977
Bartlett Lake, Koochiching County, Minnesota. 1974
Basic issues in Great Lakes research : proceedings of a workshop sponsored by the U.S. National Science Foundation and the University of Michigan, 1-3 November 1986, Kellogg Biological Station, Hickory Corners, Michigan / 1987
Basic research in the aquatic environment : effects of eutrophication on phytoplankton and selected species of aquatic vascular plants - phase II : research project technical completion report / 1974
Basic Research in the Aquatic Environment: Effects of Eutrophication on Phytoplankton Populations and Selected Species of Aquatic Vascular Plants. 1973
Bass Lake, Starke County, Indiana. 1976
Bay of Naples and Sebago Lake, Cumberland County, Maine. 1974
Bay Scallop Restoration Project in Chincoteague Bay 1999
Beach City Reservoir, Stark, and Tuscarawas Counties, Ohio. 1975
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