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226 - 250 of 678 Items << < 5 6 7 8 9 10 11 12 13 14 > >>
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The calibration of a model of flow, temperature, and water quality in the Tualatin River, Oregon, originally calibrated for the summers of 1991 through 1993, was extended to the summers of 1991 through 1997. The model is now calibrated for a total...
2024-05-03
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To support the development of a total maximum daily load (TMDL) for water temperature in the Willamette Basin, the laterally averaged, two-dimensional model CE-QUAL-W2 was used to construct a water temperature and streamflow model of the Santiam...
2024-05-03
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Mill discharge from Kilauea Sugar Company discolors the receiving waters off the north coast of Kauai and increases the turbidity thirtyfold over that for normal waters. Coral growth is abundant in this area except near the mill discharge outfall....
2009-02-02
2009-02-02 1971-09-01 |
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This document presents the results of surface-water-quality data retrievals for Lake Mead National Recreation Area (LAME) from five of the United States Environmental Protection Agency's (EPA) national databases: (1) Storage and Retrieval (STORET)...
1994-12-01
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Kabul is one of the most populated cities in Afghanistan and providing resources to support this population in an arid climate presents a serious environmental challenge. The current study evaluated the quality of local Kabul Basin groundwater to...
2020-10-16
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Publicity given to the detrimental effects of mining activities on the environment has tended to overshadow somewhat the hydrologic opportunities and benfits that could be associated with these activities. For...
1980-01-01
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The temporal and spatial changes in chemical and biological properties of Lake Mead have been investigated, thereby indicating the sources of water pollution and the time of highest pollution potential. Planktonic organisms have been shown to...
1972-09-01
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As part of the U.S. Geological Survey's National Water-Quality Assessment program, an analysis of the existing ground-water-quality data in the Upper Colorado River Basin study unit is necessary to provide information on the historic water-quality...
1998-05-03
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This document presents the results of surface-water-quality data retrievals for Lake Mead National Recreation Area (LAME) from five of the United States Environmental Protection Agency's (EPA) national databases: (1) Storage and Retrieval (STORET)...
1994-12-01
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As part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) program, fish communities were sampled at five sites in the South Platte River from Denver, Colorado, to North Platte, Nebraska. The number and composition of fish...
1994-05-03
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Abstract Sediment-phosphorus release rates as a function of pH were determined in laboratory experiments for sediment and water samples collected from Shoalwater Bay in Upper Klamath Lake, Oregon, in 2001. Areal release rates for a stable...
2024-05-03
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The lower Columbia River Basin includes the river basins draining into the Columbia River below Bonneville Dam—the largest of which is the Willamette River. This report presents the results of a study by the U.S. Geological Survey, done in...
1996-05-03
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Correspondence and documents concerning the Catlin Canal. Letters cover topics such as water quality, water rights, recreation, irrigation, and Arkansas River Basin water users more broadly. The folder also contains data examples for typical...
2015-11-09 2015-11-09 |
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The increase in salinity of our western rivers has been identified as one of the most serious water quality problems in the nation. This is of special concern in the Colorado River where salinity has increased from pristine levels estimated at 380...
1983-01-01
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Reservoirs are becoming an increasingly prominent feature of the American landscape. Built for flood mitigation and to change a fluctuating river into a dependable source of water for irrigation, power, and other purposes, they are predestined,...
1960-01-01
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Analysis of historical nutrient data for Lake Mead indicates that the fertility of the reservoir has decreased which may be the cause for a corresponding decline in the largemouth bass population. However, it appears that fertility can be...
1979-01-01
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Lake Mead is a deep, subtropical, moderately productive, desert impoundment with a negative heterograde oxygen profile occurring during; the summer stratification. investigations of the Boulder Basin of Lake Mead by the University of Nevada were...
1977-06-01
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This document presents the results of surface-water-quality data retrievals for Lake Mead National Recreation Area (LAME) from five of the United States Environmental Protection Agency's (EPA) national databases: (1) Storage and Retrieval (STORET)...
1994-12-01
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Abstract: Kabul is one of the most populated cities in Afghanistan and providing resources to support this population in an arid climate presents a serious environmental challenge. The current study evaluated the quality of local Kabul Basin...
2020-10-16
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Need and Importance of Study
Water demands in Utah are continuously increasing. It is essential that these demands be me to insure the continued enhancement of the social and economic well-being of all sectors of our society. Since water needs...
1966-09-01
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Federal web portal providing information about water science, water data, water studies, floods, drought conditions, publications and general information for water resources of the United States.
2005-06-09
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Collection of high resolution, in situ data using environmental sensors is common in hydrology and other environmental science domains. Sensors are subject to drift, fouling, and other factors that can affect the quality of the measurements and...
2018-05-25
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Presented are alternative techniques for including conservative solute transport within computer models for optimizing groundwater extraction rates. Unsteady two-dimensional flow and dispersed conservative solute transport are assumed. Comparisons...
1988-10-01
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Abstract This report presents trace-element, organic-compound (pesticides, volatile and semi-volatile organic, and dioxin and furan compounds), and nutrient concentration data from the analyses of water column, suspendedsediment, and bed-sediment...
1995-05-03
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The structure, functioning and performance of water institutions in Hawaii is studied within a 'hierarchy of decision-levels" framework developed by S.v. Ciriacy-Wantrup. The study framework provides new opportunities for gaining insights into the...
2010-02-16
2010-02-16 1972-08-01 |
