Search Results for the EPA National Library Catalog

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Sampling of Reactive Atmospheric Species by Transition-Flow Reactor: Application to Nitrogen Species (Journal Version). 1988
Sand Lake, Brown County, South Dakota. 1976
Sangchris Lake, Christian County, Illinois. 1975
Santa Margarita Lake, San Luis Obispo County, California. 1978
Santeetlah Lake, Graham County, North Carolina. 1975
Saratoga Lake, Saratoga County, New York. 1974
Sardis Lake, Lafayette and Panola Counties, Mississippi. 1975
Schroon Lake, Essex and Warren Counties, New York. 1974
Seasonal and spatial patterns of nitrate and silica concentrations in Canajoharie Creek, New York 1998
Sebasticook Lake, Penobscot County, Maine. 1974
Section 319 nonpoint source program success story : North Carolina : basin-wide cleanup effort reduces instream nitrogen / 2005
Section 319 nonpoint source program success story : North Carolina : Tar-Pamlico Basin agricultural management strategy reduces instream nutrients / 2005
Section 319 nonpoint source program success story Pyramid Lake Paiute Tribe, Nevada : improved grazing and agricultural management reduces nitrogen in the Truckee River watershed / {electronic resource} : 2005
Sediment Studies in Back River Estuary, Baltimore, Maryland. 1976
Sediment, nutrient and pesticide transport in selected lower Great Lakes tributaries / 1988
Selected irrigation return flow quality abstracts 1972-1973, third annual issue, 1974
Selected irrigation return flow quality abstracts, 1974 : fourth annual issue / 1976
Selected irrigation return flow quality abstracts, 1975 : fifth annual issue / 1977
Selected irrigation return flow quality abstracts, 1976 : sixth annual issue / 1978
Selected irrigation return flow quality abstracts, 1977 : seventh annual issue / 1979
Selected irrigation return flow quality abstracts, 1978 : eighth annual issue / 1980
Selective Removal of Nitrate and Nitrite from Polluted Water. 1974
Seneca Lake, Schuyler County, New York. 1974
Shallow Ground Water in Selected Areas in the Fort Union Coal Region. 1974
Shasta Lake, Shasta County, California. 1978
Shawano Lake, Shawano County, Wisconsin. 1974
Shelbyville Reservoir, Moultrie and Shelby Counties, Illinois. 1975
Shenango River Reservoir, Mercer County, Pennsylvania. EPA Region III. 1975
Sheridan Lake, Pennington County, South Dakota. 1977
Short-Term Changes in the Base Neutralizing Capacity of an Acid Adirondack Lake, New York. 1984
Silica and nitrate depletion as related to rate of eutrophication in Lake Michigan, Lake Huron, and Lake Superior / 1971
Silver Lake, McLeod County, Minnesota. 1974
Silver Lake, Worth County, Iowa. 1976
Simplified N.O.D. determination / 1979
Simulated Precipitation Reference Materials, II. 1977
Simulated Precipitation Reference Materials, III. 1980
Simulated Precipitation Reference Materials. 1975
Simulation of Nitrogen Attenuation in a Subterranean Estuary, Representative of the Southern Coast of Cape Cod, Massachusetts. 2015
Simulation of nutrient loadings in surface runoff with the NPS model / 1977
Sinissippi Lake, Dodge County, Wisconsin. 1974
Six Mile Lake, St. Louis County, Minnesota. 1974
Slatersville Reservoirs, Providence County, Rhode Island. 1974
Soil development and nitrates in minesoil / 1979
Soil Pollution from Cattle Feedlots in Georgia. 1973
Some Important Inorganic Nitrogen and Phosphorus Species in Georgia Salt Marsh. 1972
Source Apportionment Methods Applied to the Determination of the Origin of Ambient Aerosols That Affect Visibility in Forested Areas. 1983
Sources of Urban Runoff Pollution and Its Effects on a Urban Creek. 1982
South Red Iron Lake, Marshall County, South Dakota. 1977
Spatial distribution of nitrate leaching "hot spots" and nitrate contributions to the South Platte River Basin aquifers 1993
Spirit Lake, Dickinson County, Iowa. 1976
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