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Now showing items 171-180 of 186
Reservoir/River System Reliability Considering Water Rights and Water Quality
(Texas Water Resources Institute, 1994-03)
Effective management of the highly variable water resources of a river basin requires an understanding of the amount of suitable quality water that can be provided under various conditions within institutional constraints. ...
The Impact of Harvesting and Site Preparation on Stormflow and Water Quality in East Texas
(Texas Water Resources Institute, 1984-03)
In 1979, nine small forested watersheds were instrumented in East Texas to determine the effect of intensive forest management practices on water quantity and quality. Three replications of three treatments were used: 1) ...
Preliminary Investigation of Tracer Gas Reaeration Method for Shallow Bays
(Texas Water Resources Institute, 1987-08)
Accurate estimates of surface exchange rates for volatile pollutants in bays are needed to allow predictions of pollutant movement and retention time. The same types of estimates can be used to calculate reaeration rates. ...
Effectiveness of Native Species Buffer Zones for Nonstructural Treatment of Urban Runoff
(Texas Water Resources Institute, 1993-10)
A field study was conducted to determine the influences of vegetation composition, buffer width, and infiltration rate on the effectiveness of native vegetation buffer zones as nonstructural treatments of urban runoff with ...
Acute and Genetic Toxicity of Municipal Landfill Leachate
(Texas Water Resources Institute, 1991-10)
Municipal solid waste (MSW) landfills have been found to contain many of the same hazardous constituents as found in hazardous waste landfills. Because of the large number of MSW landfills, these sites pose a serious ...
The Expanding Dairy Industry: Impact on Ground Water Quality and Quantity with Emphasis on Waste Management System Evaluation for Open Lot Dairies
(Texas Water Resources Institute, 1993-08)
Major expansion of the dairy industry has occurred in the last 12 years in North Central Texas, especially in Erath County. For several decades, this area has been the location of small dairy farms with sufficient land to ...
Natural Salt Pollution and Water Supply Reliability in the Brazos River Basin
(Texas Water Resources Institute, 1993-08)
The Brazos River Basin is representative of several major river basins in the Southwestern United States in regard to natural salt pollution. Geologic formations underlying portions of the upper watersheds of the Brazos, ...
A Farm-Level Evaluation of Agricultural Profit and Ground Water Quality: Texas Seymour Aquifer
(Texas Water Resources Institute, 1994-12)
The Seymour Aquifer of north-central Texas is known to have elevated levels of nitrates. The design of economically sound policies for reducing agriculture's nitrate contribution to the aquifer suggests a need to evaluate ...
Effect of Forest Site Preparation and Livestock Grazing on Stormflow and Water Quality in the South East
(Texas Water Resources Institute, 1983-08)
The commercial forestlands of East Texas and Louisiana are the most water-efficient producing areas of the two states. Current and projected water shortages for Texas makes this water-rich area extremely important to future ...
Freshwater Community Responses to Mixtures of Agricultural Pesticides: Synergistic Effects of Atrazine and Bifenthrin
(Texas Water Resources Institute, 1991-04)
This study was an investigation of the effects of the herbicide atrazine and the insecticide bifenthrin on lake communities. The study was conducted in two phases: in phase one, we examined the effects of environmentally ...