Browsing by Subject "rivers"
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Item 2002 Water Quality Inventory - Sources of Pollution for Water Bodies Not Meeting Water Quality Standards(Texas Commission on Environmental Quality, 2002) Texas Commission on Environmental QualityItem 2002 Water Quality Inventory - Sources of Pollution for Water Bodies with Concerns for Use Attainment(Texas Commission on Environmental Quality, 2002) Texas Commission on Environmental QualityItem 2002 Water Quality Inventory - Sources of Pollution for Water Bodies with Water Quality Concerns(Texas Commission on Environmental Quality, 2002) Texas Commission on Environmental QualityItem 2002 Water Quality Inventory Stream Flow Types and Information Used to Determine the Dissolved Oxygen Criteria(Texas Commission on Environmental Quality, 2002) Texas National Resource Conservation CommissionItem 2004 Texas 303(d) List (May 13, 2005)(Texas Commission on Environmental Quality, 2005) Texas Commission on Environmental QualityItem 2006 Texas Water Quality Inventory - Sources of Impairment and Concerns(Texas Commission on Environmental Quality, 2007) Texas Commission on Environmental QualityItem 2006 Texas Water Quality Inventory Water Bodies Evaluated (June 27, 2007)(Texas Commission on Environmental Quality, 2007) Texas Commission on Environmental QualityItem 2006 Texas Water Quality Inventory Water Bodies with Concerns for Use Attainment and Screening Levels (June 27, 2007).(Texas Commission on Environmental Quality, 2007) Texas Commission on Environmental QualityItem 2008 Texas Water Quality Inventory - Sources of Impairments and Concerns(Texas Commission on Environmental Quality, 2008) Texas Commission on Environmental QualityItem 2008 Texas Water Quality Inventory Water Bodies Evaluated (March 19, 2008)(Texas Commission on Environmental Quality, 2008) Texas Commission on Environmental QualityItem 2008 Texas Water Quality Inventory Water Bodies with Concerns for Use Attainment and Screening Levels (March 19, 2008)(Texas Commission on Environmental Quality, 2008) Texas Commission on Environmental QualityItem 2010 Texas Water Quality Inventory Water Bodies Evaluated(Texas Commission on Environmental Quality, 2010) Texas Commission on Environmental QualityItem Assessment Summary(Texas Commission on Environmental Quality, 2007) Texas Commission on Environmental QualityItem Executive Summary(Texas Commission on Environmental Quality, 2011) Texas Commission on Environmental QualityItem Fluvial-Estuarine Sedimentation Texas Gulf Coast(1988) White, William Allen, 1939-; Calnan, Thomas R.Deltaic and associated alluvial areas located at the mouths of rivers that flow into the bay-estuary-lagoon system along the Texas coast serve as habitats for extensive salt, brackish, and fresh-water marshes, which are crucial components of biologically productive estuarine ecosystems. These bay-head depositional systems are predominantly formed by fluvial sediments transported and deposited by the major rivers that discharge into the estuarine waters. The loss of over 10,000 acres of wetlands in the alluvial and deltaic areas of the Neches and San Jacinto Rivers underscores the necessity to closely examine the processes that establish, sustain, and degrade these vital natural resources along the Texas coast.Item Guidance for Assessing Texas Surface and Finished Drinking Water Quality Data, 2002(Texas Commission on Environmental Quality, 2002) Texas National Resource Conservation CommissionItem Letter to Ruth D. Turner from H.B. Stenzel on 1964-12-23(1964-12-23) Stenzel, Henryk B.Item Sand and Gravel Mining in the Brazos River: An Assessment of Erosion Potential and Economic Impact(1996) Gustavson, Thomas C.; Bullen, Graeme R.This work was undertaken at the request of the Texas Parks and Wildlife Department to assess the potential for increased erosion in the Brazos River channel caused by sand and gravel mining as well as to evaluate the economic importance of sand and gravel mining. The potential for increased erosion was assessed by examining the history of channel meandering for river segments upstream, within, and downstream of the area of sand and gravel mining. Point and channel bars were mapped and sampled in river segments that are upstream, within, and downstream of the area of sand and gravel mining. Natural levee and floodplain sediments were cored and sampled for segments upstream, within, and downstream of the area of sand and gravel mining. The size and number of meanders as well as the amount of lateral movement of meanders over time decrease downstream through the study area. This indicates that sand and gravel mining has not resulted in recognizable increases in regional erosion. Grain-size analyses of sediment samples from river bars show little change in the texture of these sediments, indicating that sand and gravel mining has had no recognizable effect on grain-size distribution of the sediments that make up river bars.Item Sediment Transport in the Lower Guadalupe and San Antonio Rivers(University of Texas at Austin, 1992-01) Holley, E.R.Item Suspended Sediment Yield in Texas Watersheds(Center for Research in Water Resources, The University of Texas at Austin, 1998-08) Coonrod, Julia E. Allred; Holley, Edward R.; Maidment, David R.; Ward, George H.