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Agricultural chemicals -- Environmental aspects -- Colorado

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• Agricultural chemicals -- Environmental aspects
• Agricultural chemicals -- Environmental aspects -- United States
• Colorado

• Agricultural chemicals -- Environmental aspects -- Colorado -- Platteville
• Pesticides -- Environmental aspects -- Colorado
• Trace elements -- Environmental aspects -- Colorado

• Ground water flow and effects of agricultural application of sewage sludge and other fertilizers on the chemical quality of sediments in the unsaturated zone and ground water near Platteville, Colorado, 1985-89 (U.S. Dept. of the Interior, U.S. Geological Survey :, 1995), by Neville G. Gaggiani, Geological Survey (U.S.), and Metro Wastewater Reclamation District (Colo.) (page images at HathiTrust)

• Nitrate concentrations, 1936-99, and pesticide concentrations, 1990-99, in the unconfined aquifer in the San Luis Valley, Colorado (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2001), by Robert W. Stogner, Geological Survey (U.S.), and National Water-Quality Assessment Program (U.S.) (page images at HathiTrust)
• Probability of detecting atrazine desethyl atrazine and elevated concentrations of nitrate in ground water in Colorado (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2003), by Michael Rupert, Geological Survey (U.S.), Colorado State University. Cooperative Extension Service, Colorado. Department of Public Health and Environment, and Colorado. Department of Agriculture (page images at HathiTrust)

• Nitrate concentrations, 1936-99, and pesticide concentrations, 1990-99, in the unconfined aquifer in the San Luis Valley, Colorado (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2001), by Robert W. Stogner, Geological Survey (U.S.), and National Water-Quality Assessment Program (U.S.) (page images at HathiTrust)

• Pesticides in surface water in agricultural and urban areas of the South Platte River Basin, from Denver, Colorado, to North Platte, Nebraska, 1993-94 (U.S. Dept. of the Interior, U.S. Geological Survey, 1998), by Robert Kimbrough, David W. Litke, and Geological Survey (U.S.) (page images at HathiTrust)
• Water quality assessmet of the South Platte River Basin, Colorado, Nebraska, and Wyoming (U.S. Dept. of the Interior, U.S. Geological Survey :, 1995), by Kevin F. Dennehy and Geological Survey (U.S.) (page images at HathiTrust)
• Changes in nutrient and pesticide concentrations in urban and agricultural areas of the South Platte River Basin, Colorado, Wyoming, and Nebraska, 1994-2000 (U.S. Dept. of the Interior, U.S. Geological Survey :, 2003), by Lori A. Sprague, Adrienne I. Greve, National Water-Quality Assessment Program (U.S.), and Geological Survey (U.S.) (page images at HathiTrust)

• Relations of benthic macroinvertebrates to concentrations of trace elements in water, streambed sediments, and transplanted bryophytes and stream habitat conditions in nonmining and mining areas of the upper Colorado River basin, Colorado, 1995-98 (U.S. Dept. of the Interior, U.S. Geological Survey :, 2002), by Scott V. Mize, Jeffrey R. Deacon, Geological Survey (U.S.), and National Water-Quality Assessment Program (U.S.) (page images at HathiTrust)

• Water-quality conditions, hydrologic budget, and sources and fate of selected trace elements and nutrients in Boulder Reservoir, Boulder, Colorado, 1997-98 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1999), by Robert Kimbrough and Geological Survey (U.S.) (page images at HathiTrust)

• Organochlorine compounds and trace elements in streambed sediment and fish tissue, South Platte River Basin, Colorado, Nebraska, and Wyoming (U.S. Department of the Interior, U.S. Geological Survey, 1997), by Janet S. Heiny, National Water-Quality Assessment Program (U.S.), and Geological Survey (U.S.) (page images at HathiTrust)

Items below (if any) are from related and broader terms.

• Beneath the bottom line : agricultural approaches to reduce agrichemical contamination of groundwater. (Office of Technology Assessment, Congress of the U.S. :, 1990), by United States Congress Office of Technology Assessment (page images at HathiTrust)
• Economic analysis of interim final effluent guidelines for the pesticides and agricultural chemicals industry : group 2. (Environmental Protection Agency, Office of Water Planning and Standards ;, 1976), by Inc Arthur D. Little and United States. Environmental Protection Agency. Office of Water Planning and Standards (page images at HathiTrust)
• The effects of agricultural pesticides in the aquatic environment, irrigated croplands, San Joaquin Valley. (Environmental Protection Agency, Rural Wastes Branch; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1972), by Davis. Food Protection and Toxicology Center University of California, Raymond A. Fleck, Mingyou Li, and United States. Environmental Protection Agency. Office of Water Programs (page images at HathiTrust; US access only)
• Fertilizers and agricultural chemicals : Sub-Council report (NIPCC :, 1971), by National Industrial Pollution Control Council. Fertilizers & Agricultural Chemicals Sub-Council and United States. Dept. of Commerce (page images at HathiTrust)
• Occurrence and distribution of nitrate and herbicides in the Iowa River alluvial aquifer, Iowa--May 1984 to November 1985 (Dept. of the Interior, U.S. Geological Survey ;, 1989), by Mark G. Detroy, Ronald L. Kuzniar, Geological Survey (U.S.), Iowa. Department of Natural Resources. Geological Survey Bureau, and University of Iowa. Hygienic Laboratory (page images at HathiTrust)
• Selenium pretreatment study (U.S. Dept. of the Interior, Bureau of Reclamation, 1991), by Lisa H. Rowley, San Joaquin Valley Drainage Program, and United States Bureau of Reclamation (page images at HathiTrust)

• A study of thirty-six streams that were polluted by agricultural insecticides in 1950 (Alabama Dept. of Conservation, 1955), by A. D. Hooper, J. M. Hester, and Alabama. Department of Conservation (page images at HathiTrust; US access only)

• Groundwater contamination : January 1988 - April 1990 (National Agricultural Library, 1990), by Henry Gilbert and National Agricultural Library (U.S.) (page images at HathiTrust)
• Monitoring water quality for agricultural wastes and agrichemicals : January 1991 - June 1993 (National Agricultural Library, 1993), by Bonnie Emmert, Joe Makuch, and National Agricultural Library (U.S.) (page images at HathiTrust)
• Monitoring water for agricultural wastes and agrichemicals : January 1982 - July 1990 (National Agricultural Library, 1991), by Jodee Kuske and National Agricultural Library (U.S.) (page images at HathiTrust)
• Monitoring water for agricultural wastes and agrichemicals : January 1990 - June 1992 (National Agricultural Library, 1992), by David Holloway and National Agricultural Library (U.S.) (page images at HathiTrust)

• Agricultural pesticide applications and observed concentrations in surface waters from four drainage basins in the Central Columbia Plateau, Washington and Idaho, 1993-94 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1996), by Richard J. Wagner and Geological Survey (U.S.) (page images at HathiTrust)
• Agricultural pesticides found in ground water of the Quincy and Pasco basins. (U.S. Dept. of the Interior, U.S. Geological Survey, 1996), by Geological Survey (U.S.) (page images at HathiTrust)
• Pesticides found in ground water below orchards in the Quincy and Pasco Basins. (U.S. Dept. of the Interior, U.S. Geological Survey, 1996), by Lonna M. Roberts, Joseph L. Jones, and Geological Survey (U.S.) (page images at HathiTrust)
• Agricultural pesticides found in ground water of the Quincy and Pasco basins (U.S. Dept. of the Interior, U.S. Geological Survey, 1996), by L. M. Roberts, J. L. Jones, National Water Quality Assessment Program (U.S.), and Geological Survey (U.S.) (page images at HathiTrust)

• Water quality in the Delmarva Peninsula, Delaware, Maryland, and Virginia, 1999-2001 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2004), by J. M. Denver and Geological Survey (U.S.) (page images at HathiTrust)

• Review of the administration's pesticide policy : hearing before the Subcommittee on Department Operations and Nutrition of the Committee on Agriculture, House of Representatives, One Hundred Third Congress, first session, September 22, 1993. (U.S. G.P.O. :, 1994), by United States. Congress. House. Committee on Agriculture. Subcommittee on Department Operations and Nutrition (page images at HathiTrust)

• Farming and protecting the environment. (Illinois Environmental Protection Agency, Office of Public Information, 1990), by Illinois. Environmental Protection Agency (page images at HathiTrust)
• Persistence and mobility of selected pesticides in loessial soils of Illinois : final report (The Office, 1989), by Dennis P. McKenna, Illinois State Geological Survey, and Illinois. Dept. of Energy and Natural Resources. Office of Research and Planning (page images at HathiTrust)
• Occurrence of nitrate in well waters (Illinois State Water Survey, 1966), by T.E. Larson and Laurel Henley (page images at HathiTrust; US access only)

• Transport of agricultural chemicals in surface flow, tileflow, and streamflow of Walnut Creek Watershed near Ames, Iowa, April 1991-September 1993 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1996), by P. J. Soenksen, Geological Survey (U.S.), and National Soil Tilth Laboratory (U.S.) (page images at HathiTrust)

• Factors affecting leaching in agricultural areas and an assessment of agricultural chemicals in the ground water of Kansas (Dept. of the Interior, U.S. Geological Survey ;, 1988), by Charles A. Perry, Philip L. Barnes, F. V. Robbins, Geological Survey (U.S.), and Kansas. Department of Health and Environment (page images at HathiTrust)

• Effects of agriculture on quality of water in surficial sand-plain aquifers in Douglas, Kandiyohi, Pope, and Stearns counties, Minnesota (Dept. of the Interior, U.S. Geological Survey ;, 1989), by H. W. Anderson, Geological Survey (U.S.), and Douglas Soil and Water Conservation District (page images at HathiTrust)

• Occurrence and transport of agricultural chemicals in the Mississippi River basin, July through August 1993 (U.S. G.P.O. ;, 1993), by D. A. Goolsby, E. M. Thurman, and William A. Battaglin (page images at HathiTrust)
• Postflood occurrence of selected agricultural chemicals and volatile organic compounds in near-surface unconsolidated aquifers in the upper Mississippi River Basin, 1993 (U.S. G.P.O. :, 1995), by Dana W. Kolpin and E. M. Thurman (page images at HathiTrust)

• Nonpoint-source agricultural chemicals in ground water in Nebraska : preliminary results for six areas of the High Plains aquifer (Dept. of the Interior, U.S. Geological Survey ;, 1987), by Hsui-hsiung Chʻen, A. Douglas Druliner, and Geological Survey (U.S.) (page images at HathiTrust)

• Pesticide concentrations in surface waters of New York State in relation to land use - 1997 (U.S. Dept. of the Interior, U.S. Geological Survey, 1998), by Patrick J. Phillips, New York (State). Department of Environmental Conservation, and Geological Survey (U.S.) (page images at HathiTrust)

• Pesticide usage survey of agricultural, governmental, and industrial sectors in the United States, 1974 (Environmental Protection Agency, Office of Pesticide Programs, 1977), by Julian E. Keil and United States. Environmental Protection Agency. Office of Pesticide Programs (page images at HathiTrust)

• Beneath the Bottom Line: Agricultural Approaches To Reduce Agrichemical Contamination of Groundwater (1990), by United States Congress Office of Technology Assessment (PDF files at Princeton)
• Beneath the bottom line : agricultural approaches to reduce agrichemical contamination of groundwater : summary. (Office of Technology Assessment, Congress of the U.S. :, 1990), by United States Congress Office of Technology Assessment (page images at HathiTrust)
• Beneath the bottom line : agricultural approaches to reduce agrichemical contamination of groundwater. (Office of Technology Assessment, Congress of the U.S. :, 1990), by United States Congress Office of Technology Assessment (page images at HathiTrust)
• Review of ground water quality concerns hearings before the Subcommittee on Department Operations, Research, and Foreign Agriculture of the Committee on Agriculture, House of Representatives, One Hundredth Congress, first and second sessions, October 12, 1987, Humboldt, IA; October 27 and December 9, 1987; March 29 and May 24, 1988. (U.S. G.P.O., 1989), by Research United States. Congress. House. Committee on Agriculture. Subcommittee on Department Operations (page images at HathiTrust)
• Review of the Administration's pesticide reform proposal : hearing before the Subcommittee on Department Operations and Nutrition of the Committee on Agriculture, House of Representatives, One Hundred Third Congress, second session, June 15, 1994. (U.S. G.P.O. :, 1994), by United States. Congress. House. Committee on Agriculture. Subcommittee on Department Operations and Nutrition (page images at HathiTrust)
• Water quality : a report of progress. (U.S. Dept. of Agriculture, 1993), by United States. Dept. of Agriculture (page images at HathiTrust)
• Review of ground water quality concerns : hearings before the Subcommittee on Department Operations, Research, and Foreign Agriculture of the Committee on Agriculture, House of Representatives, One Hundredth Congress, first and second sessions, October 12, 1987, Humboldt, IA; October 27 and December 9, 1987; March 29 and May 24, 1988. (U.S. G.P.O. :, 1989), by Research United States. Congress. House. Committee on Agriculture. Subcommittee on Department Operations (page images at HathiTrust)
• Environmental and economic benefits of low-input farming : hearing before a subcommittee of the Committee on Government Operations, House of Representatives, One Hundredth Congress, second session, April 28, 1988. (U.S. G.P.O. :, 1989), by Energy United States. Congress. House. Committee on Government Operations. Environment (page images at HathiTrust)
• Water quality : a report of progress. (U.S. Dept. of Agriculture, 1997), by United States. Dept. of Agriculture (page images at HathiTrust)
• Organic and conventional farming systems : environmental and economic issues (Dept. of Entomology & Section of Ecology and Systematics, New York State College of Agriculture and Life Sciences, Cornell University, 2005), by David Pimentel (page images at HathiTrust)
• Managing farm nutrients : tradeoffs for surface and ground-water quality (U.S. Dept. of Agriculture, Economic Research Service, 1988), by Bradley M. Crowder, C. Edwin Young, and United States. Dept. of Agriculture. Economic Research Service (page images at HathiTrust)
• Cotton agricultural chemical use and farming practices in 1989 : an overview of survy results (U.S. Dept. of Agriculture, Economic Research Service, Resources and Technology Division, 1990), by Stephen R. Crutchfield and United States. Dept. of Agriculture. Economic Research Service. Resources and Technology Division (page images at HathiTrust)
• Cotton production and water quality : an initial assessment (U.S. Dept. of Agriculture, Economic Research Service, Resources and Technology Division ;, 1991), by Stephen R. Crutchfield and United States. Dept. of Agriculture. Economic Research Service. Resources and Technology Division (page images at HathiTrust)
• Agricultural and water-quality conflicts : economic dimensions of the problem (U.S. Dept. of Agriculture, Economic Research Service, 1993), by Stephen R. Crutchfield, LeRoy T. Hansen, Marc Ribaudo, and United States. Dept. of Agriculture. Economic Research Service (page images at HathiTrust)
• The magnitude and costs of groundwater contamination from agricultural chemicals : a national perspective (U.S. Dept. of Agriculture, Economic Research Service, 1987), by Elizabeth G. Nielsen, Linda K. Lee, and United States. Department of Agriculture. Economic Research Service (page images at HathiTrust)
• Selected papers on agricultural chemicals in water resources of the midcontinental United States (U.S. Geological Survey :, 1993), by Gail E. Mallard, L. L. Boyer, D. A. Goolsby, and Geological Survey (U.S.) (page images at HathiTrust)
• Health and environmental factors associated with agricultural use of fungicides (National Agricultural Pesticide Impact Assessment Program (NAPIAP), 1991), by Harold G. Alford, James M. Witt, Hugh Delane Sisler, John W. Hylin, Nancy N. Ragsdale, and National Agricultural Pesticide Impact Assessment Program (U.S.) (page images at HathiTrust)
• An interdisciplinary assessment of regional-scale nonpoint ground-water vulnerability : theory and application (U.S. Geological Survey, 2001), by Richard L. Bernknopf, Keith M. Loague, Laura B. Dinitz, and Geological Survey (U.S.) (page images at HathiTrust)
• Environmental handbook for fertilizer and agrichemical dealers (Tennessee Valley Authority, National Fertilizer and Environmental Research Center, 1991), by J. Harold Parker and National Fertilizer & Environmental Research Center (U.S.) (page images at HathiTrust)

More items available under broader and related terms at left.