Physical, chemical, and biological data for detailed study of irrigation drainage in the Uncompahgre Project area and in the Grand Valley, west-central Colorado, 1991-92

Butler, D. L.; Wright, W. G.; Hahn, D. A.; Krueger, R. P.; Osmundson, B. C.

Abstract:

Because of concerns about potential effects of irrigation drainage on fish and wildlife resources and on human health, the U.S. Department of the Interior initiated a program in 1985 to assess water-quality problems associated with Federal irrigation projects in the Western United States. Physical, chemical, and biological data were collected for a detailed study of irrigation drainage in the Uncompahgre Project area and in the Grand Valley, west-central Colorado, during 1991-92. This report lists onsite measurements and concen- trations of major constituents, trace elements, and stable isotopes for surface-water- and ground-water-sampling sites. Insecticide data collected in the Grand Valley are presented. Ranges of specific-conductance measurements and dissolved- oxygen concentrations for selected wells and a daily record of water-level altitude and specific conduc- tance for a well in the Grand Valley are presented. The report presents historical water-level and dissolved-solids data for two wells in the Grand Valley. Concentrations of trace elements, major constituents, total carbon, and organic carbon in bottom-sediment, bedrock, and in aquifer-sediment samples and semiquantitative data on clay and bulk mineralogy of samples of the Mancos Shale are presented. The report contains selenium-speciation data for selected water and bottom-sediment samples and selected aquifer-test results. Biological samples collected in the Uncompahgre Project area and in the Grand Valley included aquatic plants, aquatic invertebrates, fish, birds, and bird eggs. The report lists concentrations of trace elements in biological samples collected in 1991-92. A limited number of biological samples were analyzed for pesticides, PCB‘s, and polycyclic aromatic hydrocarbons.

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USGS Numbered Series

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17483

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Butler, D. L.; Wright, W. G.; Hahn, D. A.; Krueger, R. P.; Osmundson, B. C.

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ENGLISH

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vi, 146 p. :ill., maps ;28 cm.

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U.S. Geological Survey : U.S.G.S. Earth Science Information Center, Open-File Reports Section [distributor],

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Open-File Report

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OFR

Citation Series Number:

94-110

Citation Search Results Text:

Physical, chemical, and biological data for detailed study of irrigation drainage in the Uncompahgre Project area and in the Grand Valley, west-central Colorado, 1991-92; 1994; OFR; 94-110; Butler, D. L.; Wright, W. G.; Hahn, D. A.; Krueger, R. P.; Osmundson, B. C.