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176 - 200 of 417 Items << < 3 4 5 6 7 8 9 10 11 12 > >>
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A study was conducted to determine the effects or
temperature, solar radiation, rainfall, and saturated flow
on fecal coliform numbers in sewage sludge-amended soils.
To determine this, four 4.6 X 13.7 m field plots were each
amended in summer and...
1983-05-18 (iso8601)
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Artificial capillary barriers are being used to divert water away from sensitive underground regions. Conversely, funneled flow over natural capillary barriers may increase the danger of groundwater contamination by decreasing the travel time and...
2000-04 (iso8601)
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Hyporheic Exchange Flow (HEF) is driven by head gradients defined by the hydro-topography of the stream surface, which is controlled by the particular geomorphology of the stream. We quantified the impact of large wood, which typically exerts a...
2006-10-16T16:03:47Z (iso8601)
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Abstract
Quigley, Thomas M.; Arbelbide, Sylvia J., tech. eds. 1997. An assessment of ecosystem components in the interior Columbia basin and portions of the Klamath and Great Basins: volume 2. Gen. Tech. Rep. PNW-GTR-405. Portland, OR: U.S....
1997-06-01
2008-02-28 2005-10-24 |
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In 2001, an extreme drought tightened water supply in the Upper Klamath
Basin (basin) while earlier increases in Endangered Species Act (ESA) water
requirements for basin fish species that same year elevated demands. The Bureau of
Reclamation...
2007-02-07T21:55:56Z (iso8601)
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Over 10,450 flood control damns have been built in 47 states. Many are nearing their design life of 50 years and have significant rehabilitation needs, the cost of which approaches over $540 million. While assessment of the engineering safety is a...
2020-12-10
2020-12-10 2024-04-25 |
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v, 419 p.; col.ill.; col.maps; "February 2006"; Foreword by Marla Rae, Chair, Oregon Fish and Wildlife Commission
2024-04-25
2006-12-08 2006-10-11 |
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This study investigated carbon dynamics in the hyporheic zone of a steep, forested catchment in the Cascade Mountains of western Oregon, USA. Water samples were collected monthly from a headwater stream and well network during baseflow conditions...
2014-09-05 (iso8601)
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The hydrogeologic system in the vicinity of the Cataldo Mission Flats, Kootenai County, Idaho, on the Coeur d'Alene River was investigated during the period June 1997 through March 1998. Along this reach, cadmium, lead, and zinc concentrations in...
2003-05-01
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The Milltown Dam was a hydroelectric dam located seven miles east of Missoula, Montana, at the confluence of the Clark Fork River and Blackfoot River near Milltown and Bonner, Montana. This collection contains records from a variety of sources...
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Contains the professional papers of Lyman S. Willardson.; Biographical Note; Lyman S. Willardson became professor of Agricultural and Irrigation Engineering at Utah State University in 1974. Previously, he served with the USDA Agricultural...
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DRAFT 12/12/64
CONFIDENTIAL
-3-
3) North Gila Returns
a) Bureau estimate based on 20 cfs. reduction in recorded returns.
b) U. S. Section estimate based upon recorded returns of 70 cfs. - October 1964, after requested reduction in operation...
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This report presents a hydro-economic modeling methodology for conducting benefit-cost analysis of water management responses to climate change. Three hydro-economic modeling scenarios are developed. The first estimates the affects of projected...
2013-07-16
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Phosphate ore is mined from open pits at the Gay Mine, located 30 miles northeast of Pocatello, Idaho. Mining activity interacts with groundwater flow systems that are controlled primarily by complex fault block structure. Flooding of the pits by...
1980-03-01
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Presented is a procedure for incorporating solute transport as linear constraints within computer models for optimizing regional groundwater extraction strategies. The MODCON modelling procedure uses linear goal programming, embedded linearized...
1987-06-01
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Las Vegas Wash, a natural wash east of the city of Las Vegas, Nevada, carries stormwater, groundwater drainage, and sewage effluent from three sewage treatment plants to Lake Mead. The Wash provides nearly the only surface water outlet for the...
1997-04-15
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Las Vegas Wash, a natural wash east of the city of Las Vegas, Nevada, carries stormwater, groundwater drainage, and sewage effluent from three sewage treatment plants to Lake Mead. The Wash provides nearly the only surface water outlet for the...
1997-04-15
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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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A two-year study was conducted to determine the chemical characteristics of leachate derived from domestic refuse typical of that found for Honolulu, Hawaii, and to determine the removal characteristics of select Oahu soils with respect to the...
2008-07-08
2008-07-08 1975-04-01 |
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An interactive decision support program is presented for the rapid modification of optimal regional multiobjective groundwater planning strategies. This capability is important for water managers seeking to select the most satisfactory groundwater...
1987-01-01
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IRRIGATION AND THE CENTRAL VALLEY PROJECT
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Farmers and farm workers received about $90 million in net income attributable to project water in 1953. This resulted in estimated taxable retail sales of over $53 million.10 This volume of retail...
2009-04-01
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Fault zones are potential paths for release of radioactive nuclides from radioactive-waste
repositories in granitic rock. This research considers detailed maps of en echelon fault zones
at two sites in southern Sweden, as a basis for analyses of...
2004-12-10 (iso8601)
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In this paper, the authors present a conceptual model for flood control planning in the Lower El Paso Valley. In the model, the river, canals and laterals and drains as well as underlying shallow groundwater aquifer are considered as integrated...
2007-07-25
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This report is a Design Document for the calibration of the Eastern Snake Plain Aquifer Model Version 2 (ESPAM 2). Its goals are similar to the goals of Design Documents for ESPAM 1.1: To provide full transparency of modeling data, decisions and...
2012-10-01
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This report fulfills the deliverables required by the cooperative agreement between the
U.S. Army Corps of Engineers and Texas Agricultural Experiment Station (TAES/03-PL-
02: Modification No. 3) on behalf of the Paso del Norte Watershed Council....
2011-01-04
2011-01-04 2024-04-25 |
