Search Results - U.S. Dept. of the Interior, U.S. Geological Survey : U.S. Geological Survey Information Services [distributor],

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Water quality 545
Groundwater 536
Environmental aspects 508
Pollution 346
Water 291
Groundwater flow 289
Hydrogeology 261
Stream measurements 175
Quality 167
Streamflow 161
Mathematical models 131
Water-supply 123
Measurement 115
Hydrology 105
Aquifers 101
Nutrient pollution of water 89
Water table 81
Computer simulation 76
Pesticides 72
Analysis 56
Runoff 54
Suspended sediments 53
Water quality biological assessment 53
Water levels 49
Scour at bridges 47
Volatile organic compounds 47
Water quality management 46
Geology 44
Floods 43
River sediments 42

Vertical gradients in water chemistry in the central High Plains aquifer, southwestern Kansas and Oklahoma panhandle, 1999 / by P.B. McMahon. by McMahon, Peter B.

Hydrogeology of Picacho Basin, south-central Arizona / by Donald R. Pool, Robert L. Carruth, and Wesley D. Meehan. by Pool, D. R.

Supplement to Water-resources investigations report 99-4122, Lake-level frequency analysis for the Waubay Lakes Chain, northeastern South Dakota / by Colin A. Niehus, Aldo V. Vecc... by Niehus, Colin A.

Distribution and transport of total mercury and methylmercury in mercury-contaminated sediments in reservoirs and wetlands of the Sudbury River, east-central Massachusetts / by Joh...

Characterization of water quality in selected tributaries of the Alamosa River, southwestern Colorado, including comparisons to instream water-quality standards and toxicological r... by Ortiz, Roderick F.

Water-quality conditions of the lower Boise River, Ada and Canyon Counties, Idaho, May 1994 through February 1997 by William H. Mullins ; in cooperation with the Idaho Division of... by Mullins, William H.

Analysis of hydrologic factors that affect ground-water levels in the Arkansas River alluvial aquifer near La Junta, Colorado, 1959-99 / by Clifford R. Bossong ; prepared in cooper... by Bossong, C. R.

Sediment deposition and occurrence of selected nutrients, other chemical constituents, and diatoms in bottom sediment, Perry Lake, northeast Kansas, 1969-2001 / by Kyle E. Juracek... by Juracek, Kyle E.

Probability of detecting elevated concentrations of nitrate in ground water in a six-county area of south-central Idaho / by Kenneth D. Skinner and Mary M. Donato ; prepared in coo... by Skinner, K. D. (Kenneth D.)

Land use on the Island of Oahu, Hawaii, 1998 / by Frederick L. Klasner and Clinton D. Mikami. by Klasner, Frederick L.

Concentrations of selected trace elements in fish tissue and streambed sediment in the Clark Fork-Pend Oreille and Spokane River basins, Washington, Idaho, and Montana, 1998 / by T... by Maret, Terry R.

Use of water chemistry, isotopes, and chlorofluorocarbons to investigate the sources of ground water beneath Loup City, central Nebraska, 2000 / by G.V. Steele and F. Edwin Harvey... by Steele, G. V.

Characteristics of fractures in crystalline bedrock determined by surface and borehole geophysical surveys, Eastern Surplus Superfund Site, Meddybemps, Maine / by Bruce P. Hansen,... by Hansen, Bruce P.

Simulations of the effects of U.S. Highway 231 and the proposed Montgomery outer loop on flooding in the Catoma Creek and Little Catoma Creek basins near Montgomery, Alabama / by T... by Hedgecock, T. S.

Water-quality changes and organic-carbon characterization during recharge with recycled water at a research basin in Montebello Forebay, Los Angeles County, California, 1991-1996 e...

Variations in sand storage measured at monumented cross sections in the Colorado River between Glen Canyon Dam and Lava Falls Rapid, northern Arizona, 1992-99 / by Marilyn E. Flynn... by Flynn, Marilyn E.

Geothermal hydrology of Valles Caldera and the southwestern Jemez Mountains, New Mexico / by Frank W. Trainer, Robert J. Rogers, and Michael L. Sorey ; prepared in cooperation with... by Trainer, Frank W. (Frank Wilson), 1921-2006

Estimating the probability of elevated nitrate (NO₂+NO₃-N) concentrations in ground water in the Columbia Basin Ground Water Management Area, Washington / by Lonna M. Frans ; prepa... by Frans, Lonna M.

Organochlorine compounds in streambed sediment and in biological tissue from streams and their relations to land use, central Arizona / by J.B. Gebler. by Gebler, J. B. (Joseph B.)

Assessing the susceptibility to contamination of two aquifer systems used for public water supply in the Modesto and Fresno metropolitan areas, California, 2001 and 2002 / by Micha... by Wright, Michael T. (Michael Thomas), 1966-

Search Results - U.S. Dept. of the Interior, U.S. Geological Survey : U.S. Geological Survey Information Services [distributor],

Vertical gradients in water chemistry in the central High Plains aquifer, southwestern Kansas and Oklahoma panhandle, 1999 / by P.B. McMahon. by McMahon, Peter B.

Hydrogeology of Picacho Basin, south-central Arizona / by Donald R. Pool, Robert L. Carruth, and Wesley D. Meehan. by Pool, D. R.

Supplement to Water-resources investigations report 99-4122, Lake-level frequency analysis for the Waubay Lakes Chain, northeastern South Dakota / by Colin A. Niehus, Aldo V. Vecc... by Niehus, Colin A.

Distribution and transport of total mercury and methylmercury in mercury-contaminated sediments in reservoirs and wetlands of the Sudbury River, east-central Massachusetts / by Joh...

Characterization of water quality in selected tributaries of the Alamosa River, southwestern Colorado, including comparisons to instream water-quality standards and toxicological r... by Ortiz, Roderick F.

Water-quality conditions of the lower Boise River, Ada and Canyon Counties, Idaho, May 1994 through February 1997 by William H. Mullins ; in cooperation with the Idaho Division of... by Mullins, William H.

Analysis of hydrologic factors that affect ground-water levels in the Arkansas River alluvial aquifer near La Junta, Colorado, 1959-99 / by Clifford R. Bossong ; prepared in cooper... by Bossong, C. R.

Sediment deposition and occurrence of selected nutrients, other chemical constituents, and diatoms in bottom sediment, Perry Lake, northeast Kansas, 1969-2001 / by Kyle E. Juracek... by Juracek, Kyle E.

Probability of detecting elevated concentrations of nitrate in ground water in a six-county area of south-central Idaho / by Kenneth D. Skinner and Mary M. Donato ; prepared in coo... by Skinner, K. D. (Kenneth D.)

Land use on the Island of Oahu, Hawaii, 1998 / by Frederick L. Klasner and Clinton D. Mikami. by Klasner, Frederick L.

Concentrations of selected trace elements in fish tissue and streambed sediment in the Clark Fork-Pend Oreille and Spokane River basins, Washington, Idaho, and Montana, 1998 / by T... by Maret, Terry R.

Use of water chemistry, isotopes, and chlorofluorocarbons to investigate the sources of ground water beneath Loup City, central Nebraska, 2000 / by G.V. Steele and F. Edwin Harvey... by Steele, G. V.

Characteristics of fractures in crystalline bedrock determined by surface and borehole geophysical surveys, Eastern Surplus Superfund Site, Meddybemps, Maine / by Bruce P. Hansen,... by Hansen, Bruce P.

Simulations of the effects of U.S. Highway 231 and the proposed Montgomery outer loop on flooding in the Catoma Creek and Little Catoma Creek basins near Montgomery, Alabama / by T... by Hedgecock, T. S.

Water-quality changes and organic-carbon characterization during recharge with recycled water at a research basin in Montebello Forebay, Los Angeles County, California, 1991-1996 e...

Variations in sand storage measured at monumented cross sections in the Colorado River between Glen Canyon Dam and Lava Falls Rapid, northern Arizona, 1992-99 / by Marilyn E. Flynn... by Flynn, Marilyn E.

Geothermal hydrology of Valles Caldera and the southwestern Jemez Mountains, New Mexico / by Frank W. Trainer, Robert J. Rogers, and Michael L. Sorey ; prepared in cooperation with... by Trainer, Frank W. (Frank Wilson), 1921-2006

Estimating the probability of elevated nitrate (NO₂+NO₃-N) concentrations in ground water in the Columbia Basin Ground Water Management Area, Washington / by Lonna M. Frans ; prepa... by Frans, Lonna M.

Organochlorine compounds in streambed sediment and in biological tissue from streams and their relations to land use, central Arizona / by J.B. Gebler. by Gebler, J. B. (Joseph B.)

Assessing the susceptibility to contamination of two aquifer systems used for public water supply in the Modesto and Fresno metropolitan areas, California, 2001 and 2002 / by Micha... by Wright, Michael T. (Michael Thomas), 1966-

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