Search Results for the EPA National Library Catalog

Items Found: 1557
Showing: Items 451 - 500
Your Search: (SUBJECT=Nitrates)


 
 
 
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Select Item Title Year Published
Iron Limitation of Phytoplankton Photosynthesis in the Equatorial Pacific Ocean. 1994
Irrigation return flow water quality monitoring, modeling and variability in the middle Rio Grande Valley, New Mexico / 1983
James Lake, Kosciusko County, Indiana. 1976
James River Basin Water Quality Study. 1973
Jamestown Reservoir, Stutsman County, North Dakota. 1976
John H. Kerr Reservoir, Halifax, and Mecklenburg Counties, Virginia, and Granville, Vance, and Warren Counties, North Carolina. 1975
John Redmond Reservoir, Coffey and Lyon Counties, Kansas. 1977
Johnson Pond, Wicomico County, Maryland. 1975
Juniata River Subbasin Small Watershed Study: Morrison Cove. A Water Quality and Biological Assessment, April 2005 - February 2006. 2006
Kelly's Falls Pond, Hillsborough County, New Hampshire. 1974
Kentucky Lake, Hardin, Decatur, Wayne, Perry, Benton, Humphreys, Houston, Henry, and Stewart Counties, Tennessee, Calloway, Trigg, Marshall, Lyon, and Livingston Counties, Kentucky. 1976
Laboratory and Field Evaluation of Instrumentation for the Semi-Continuous Determination of Particulate Nitrate (and Other Water-Soluble Particulate Components). 2004
Lac La Belle, Waukesha County, Wisconsin. 1975
Lahontan Reservoir, Churchill and Lyon Counties, Nevada. 1977
Lake Ahquabi, Warren County, Iowa. 1976
Lake Albert, Kingsbury County, South Dakota. 1977
Lake Allegan, Allegan County, Michigan. 1975
Lake Alvin, Lincoln County, South Dakota. 1976
Lake Amador, Amador County, California. 1978
Lake Andrusia, Beltrami County, Minnesota. 1974
Lake Apopka, Lake and Orange Counties, Florida. 1977
Lake Ashtabula, Barnes and Griggs Counties, North Dakota. 1976
Lake Bemidji, Beltrami County, Minnesota. 1974
Lake Bloomington, McLean County, Illinois. 1975
Lake Brownwood, Brown County, Texas. 1977
Lake Butte des Morts, Winnebago County, Wisconsin. 1975
Lake Calahoun, Hennepin County, Minnesota. 1975
Lake Carolos, Douglas County, Minnesota. 1974
Lake Casitas, Ventura County, California. 1978
Lake Champlain, New York, and Vermont. 1974
Lake Charleston, Coles County, Illinois. 1975
Lake classification : a trophic characterization of Wisconsin lakes / 1975
Lake Cochrane, Deuel County, South Dakota. 1977
Lake Crowley, Mono County, California. 1978
Lake Darling, Douglas County, Minnesota. 1975
Lake Darling, Renville and Ward Counties, North Dakota. 1976
Lake Decatur, Macon County, Illinois. 1975
Lake Dora, Lake County, Florida. 1977
Lake Eau Claire, Eau Claire County, Wisconsin. 1974
Lake Elsinore, Riverside County, California. 1978
Lake Erie, Ohio, Pennsylvania, New York Intake Water Quality Summary, 1972. 1973
Lake Geneva, Walworth County, Wisconsin. EPA Region V. 1975
Lake Gibson, Polk County, Florida. 1977
Lake Grant, Brown County, Ohio. 1975
Lake Greenwood, Greenwood, Laurens, and Newberry Counties, South Carolina. 1976
Lake Haines, Polk County, Florida. 1977
Lake Havasu, Mohave County, Arizona, San Bernardino County California. 1977
Lake Hennessey, Napa County, California. 1978
Lake Hickory, Alexander, Caldwell, and Catawba Counties, North Carolina. 1975
Lake Houston, Harris County, Texas. 1977
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