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book (18)

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Book

Water quality in the Upper Colorado River Basin, Colorado, 1996-98
Authors: Spahr, Norman E. --- Geological Survey (U.S.)
Year: 2000 Publisher: [Reston, Virginia] : U.S. Department of the Interior, U.S. Geological Survey,

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Water quality --- Water quality --- Colorado. --- North America

Book

Variations in climatic characteristics as related to evapotranspiration in South Park, central Park County, Colorado
Authors: Spahr, Norman E. --- Geological Survey (U.S.) --- Denver (Colo.).
Year: 1981 Publisher: Lakewood, Colorado : U.S. Geological Survey,

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Climatic changes --- Evapotranspiration --- Colorado

Book

Water-quality and biological community characterization at selected sites on the Eagle River, Colorado, September 1997 and February 1998
Authors: Deacon, Jeffrey R. --- Spahr, Norman E. --- Geological Survey (U.S.)
Year: 1998 Publisher: [Reston, Vrginia] : U.S. Department of the Interior, U.S. Geological Survey,

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Water quality --- Biotic communities --- Freshwater ecology --- Colorado

Book

Interim results of quality-control sampling of surface water for the Upper Colorado River National Water-Quality Assessment Study Unit, water years 1995-96
Authors: Spahr, Norman E. --- Boulger, Robert W. --- Geological Survey (U.S.)
Year: 1997 Publisher: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey,

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Water quality

Book

Comparison of 2002 water year and historical water-quality data, upper Gunnison River basin, Colorado
Authors: Spahr, Norman E. --- Geological Survey (U.S.) --- Gunnison (Colo.)
Year: 2004 Publisher: [Reston, Va.] : U.S. Geological Survey,

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Water quality

Book

Traveltime, longitudinal-dispersion, reaeration, and basin characteristics of the White River, Colorado and Utah
Authors: Boyle, Jeanne M. --- Spahr, Norman E. --- Geological Survey (U.S.)
Year: 1985 Publisher: Lakewood, Colo. : U.S. Geological Survey,

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Stream measurements --- Pollutants --- Dispersion. --- Rivers --- Aeration. --- White River (Colo. and Utah) --- United States

Book

Water-quality characteristics of the Slate and East Rivers, Colorado, during the winter recreational season, December 1996
Authors: Spahr, Norman E. --- Deacon, Jeffrey R. --- Geological Survey (U.S.)
Year: 1998 Publisher: Denver, Colorado : U.S. Geological Survey,

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Water quality --- Research --- Slate River (Gunnison County, Colo.) --- East River (Pitkin County and Gunnison County, Colo.) --- Recreational use.

Book

Estimation of evaporation from Ned Wilson Lake, Flat Tops Wilderness area, Colorado
Authors: Spahr, Norman E. --- Turk, John T. --- Geological Survey (U.S.)
Year: 1985 Publisher: Lakewood, Colorado : U.S. Geological Survey,

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Lakes --- Evaporation (Meteorology) --- Water quality

Book

Reservoir evaporation in central Colorado
Authors: Spahr, Norman E. --- Ruddy, Barbara C. --- Geological Survey (U.S.) --- Denver (Colo.).
Year: 1983 Publisher: Lakewood, Colorado : U.S. Geological Survey,

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Reservoirs --- Water-supply --- Evaporation control --- Colorado.

Book

Nitrate loads and concentrations in surface-water base flow and shallow groundwater for selected basins in the United States, water years 1990-2006
Authors: Spahr, Norman E. --- Geological Survey (U.S.) --- National Water-Quality Assessment Program (U.S.)
Year: 2010 Publisher: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey,

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Water --- Groundwater --- Nitrates --- Nitrogen content --- Quality --- Environmental aspects

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