Results
101 - 125 of 678 Items << < 1 2 3 4 5 6 7 8 9 10 > >>
101 - 125 of 678 Items << < 1 2 3 4 5 6 7 8 9 10 > >>
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Throughout North America there is a growing interest in constructed wetlands, both as relatively inexpensive, low-maintenance systems for removing nutrients from wastewater, and as a means of using municipal wastewater to enhance wildlife habitat...
1992-11-01
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This report presents Lake Mead Water quality data obtained from 1964 to 1966. The effect of filling Lake Powell on the water quality of Lake Mead is evaluated. General limnological principles and the present limnology of Lake Mead are discussed....
1967-11-01
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Federal web portal providing information about water science, water data, water studies, publications, Recreation, Education and general information for the state of Nevada.
2005-06-06
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Although studied extensively in recent years in Europe, the occurrence of endocrine disrupters and other organic wastewater compounds in the environment in the United States is not well documented. To better understand the efficiency of riverbank...
2024-05-03
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Several limnological studies have been conducted in Lake Mead during the past decade. The recent studies clearly show that most of Lake Mead is deficient in nutrients, especially phosphorus, and very low in productivity. The reservoir-wide average...
1984-11-15
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The Upper Colorado River Basin (UCOL) of the National Water-Quality Assessment (NAWQA) Program includes the 17,800-square-mile drainage basin of the Colorado River upstream from the Colorado-Utah State line. The study area is almost equally...
2024-05-03
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A toxic contaminants study was performed in the lower Rio Grande Valley in February, 1994. The purpose was to screen selected sites for the occurrence and impact of toxic chemicals.
1995-05-03
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Las Vegas Wash, a natural wash east of Las Vegas, Nevada, carries stormwater, groundwater drainage, and sewage effluent from two sewage treatment plants to Lake Mead. Over 80 percent of the normal discharge of approximately 3.4 m3/s (120 ft3/s)...
1988-01-01
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Stream properties and water-chemistry constituent concentrations from data collected by the National Water-Quality Assessment and other U.S. Geological Survey water-quality programs were analyzed to (1) assess water quality, (2) determine natural...
2024-05-03
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SUMMARY Upper Klamath Lake is a large (140 square-mile), shallow (mean depth about 8 ft) lake in south-central Oregon that the historical record indicates has been eutrophic since its discovery by non-Native Americans. In recent decades, however,...
1996-05-03
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This report presents Lake Mead Water quality data obtained from 1964 to 1966. The effect of filling Lake Powell on the water quality of Lake Mead is evaluated. General limnological principles and the present limnology of Lake Mead are discussed....
1967-11-01
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Federal web portal providing information about water science, water data, water studies, publications and general information for the state of Colorado.
2005-07-12
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The collection consists of correspondence, news clippings, memoranda, office files, legal documents, drafts of legislation, and transcripts of hearings. Principal topics include area planning, flood control and drainage, garbage and refuse...
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Several limnological studies have been conducted in Lake Mead during the past decade. The recent studies clearly show that most of Lake Mead is deficient in nutrients, especially phosphorus, and very low in productivity. The reservoir-wide average...
1984-11-15
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The Rio Grande, flowing southward almost 2,000 miles from its headwaters in southern Colorado, drains an area of over 350,000 square miles and is the lifeblood of a semi-arid region supplying water for more than 3.5 million people and for...
2024-05-03
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The Rathdrum Prairie Integrated Water Resource Management plan is a living document to be revisited,
reviewed and updated as new information becomes available and as community water resource needs and objectives change. Integrated Water Resource...
2016-04-27
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Limnological monitoring was conducted in Las Vegas Bay and Boulder Basin from April to December of 1988. The purpose of the monitoring was to (i) document possible changes in water quality resulting from decreased phosphorus loading and increased...
1989-04-01
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The appendices include the following:
Appendix A: Evaluation of proposed State of Nevada water quality standards for Ammonia, produced by CH2M Hill California for Clark County
Appendix B: Responses to comments by the Nevada Division of...
1987-08-01
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A joint effort of the University Libraries and the Colorado Water Institute
2007-01-02
2007-01-02 2024-05-03 |
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Cover is an important component of aquatic habitat and fisheries management. Fisheries biologists often try to improve habitats through the addition of natural and artificial material to improve cover diversity and complexity. Habitat-improvement...
1994-01-01
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Limnological monitoring was conducted in Las Vegas Bay and Boulder Basin from April to December of 1988. The purpose of the monitoring was to (i) document possible changes in water quality resulting from decreased phosphorus loading and increased...
1989-04-01
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The distribution of water and of enteric bacteria of possible fecal origin into Las Vegas Bay from Las Vegas Wash was determined. Determination of distribution patterns was attained by applying the concept of the population component ratio of...
1976-04-01
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During 1986 and 1987, the City and County of Honolulu Board of Water Supply (BWS)
placed granular activated carbon (GAC) water treatment plants in service at Mililani, Waipahu, and Kunia on the island of O'ahu, Hawai'i. The GAC treatment plants...
2008-10-15
2008-10-15 1994-07-01 |
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The purpose of the Las Vegas Wash Advanced Water Quality Study is to determine the existence, extent, and mechanisms of nutrient and toxin stripping in Las Vegas Wash under present conditions and under future conditions, both with and without...
1984-01-01
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Progressive increases in concentration of dissolved solids in the Colorado River water from Lake Powell to Imperial Dam seem to alter plankton dynamics and biological productivity of the river. Also, changes in biological productivity and...
1971-01-01
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