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Pecos Valley Aquifer, West Texas: Structure and Brackish Groundwater
"The pilot study has helped lay the foundation for future Brackish Resources Aquifer Characterization System projects by developing a database management system in which variety of data can be stored and processed."
Date:
June 2012
Creator:
Wise, Matthew R.; Kalaswad, Sanjeev & Meyer, John E.
System:
The Portal to Texas History
Compilation of Results of Aquifer Tests in Texas
"The mission of the Texas Water Development Board's (TWDB) Groundwater Resources Division is to collect, interpret, and provide accurate, objective information on the groundwater resources of Texas. In support of this mission, the TWDB has undertaken a long-term process of mapping and characterizing the aquifers of Texas."
Date:
April 2012
Creator:
Wuerch, David Robert & Christian, Brent
System:
The Portal to Texas History
Aquifers of Texas
"This report is an update to the Texas Water Development Board (TWDB) Report 345, Major and Minor Aquifers of Texas, published in 1995 and coauthored by John B. Ashworth and Janie Hopkins."
Date:
July 2011
Creator:
Mace, Robert E.; Petrossian, Rima & George, Peter G.
System:
The Portal to Texas History
Changes in Water Levels in Texas, 1995 to 2005
This report examines the median water level changes in the state's major and minor aquifers, and describes where the largest declines and increases were within an aquifer and presents regional trends.
Date:
July 2011
Creator:
Boghici, Radu
System:
The Portal to Texas History
Irrigation Metering and Water Use Estimates: A Comparative Analysis, 1999-2007
This report analyzes data on irrigation water use by crop type collected from 1999-2007 in the Panhandle, North Plain, Mesa, Hudspeth, Gateway, Rolling Plains, Coastal Bend, and High Plains groundwater conservation districts and the Lower Neches Valley Authority.
Date:
July 2011
Creator:
Texas Water Development Board
System:
The Portal to Texas History
Groundwater Availability Model: Hill Country Portion of the Trinity Aquifer of Texas
This report describes updates to the earlier developed groundwater availability model for the Hill Country portion of the Trinity Aquifer System, "by (1) adding the Lower Trinity Aquifer as another layer to the model, (2) revising the spatial distribution of parameters, such as recharge and pumping, and (3) calibrating the steady-state water level and river discharge conditions for 1980 and historical transient water level and discharge conditions for 1987 through 1997" (p. 1).
Date:
June 2011
Creator:
Jones, Ian C.; Anaya, Roberto & Wade, Shirley C.
System:
The Portal to Texas History
Water Quality in the Blaine Aquifer of Texas
"The purpose of this report is to describe the water quality of the Blaine Aquifer, particularly as compared with public drinking water standards, and to analyze, if possible, any changes in water quality over time."
Date:
May 2011
Creator:
Hopkins, Janie & Muller, Chris
System:
The Portal to Texas History
Groundwater-Surface Water Interaction in the Brazos River Basin: Evidence from Lake Connection History and Chemical and Isotopic Compositions
This report describes study methods used in determining the sources of the water in oxbow lakes along the Brazos River, characteristics of the Brazos River and oxbow lakes, and the hydrogeologic setting that hydraulically connects the aquifer, river, and lakes.
Date:
October 2010
Creator:
Chowdhury, Ali H.; Osting, Tim; Furnans, Jordan & Mathews, Ray
System:
The Portal to Texas History
Aquifers of the Upper Coastal Plains of Texas
A collection of essays providing information about aquifers of the upper coastal plains of Texas.
Date:
October 2009
Creator:
Hutchison, William R.; Davidson, Sarah C.; Brown, Brenner J. & Mace, Robert E.
System:
The Portal to Texas History
Groundwater Availability Model for the Edwards-Trinity (Plateau) and Pecos Valley Aquifers of Texas
This report describes the study area, previous aquifer investigations, and hydrogeologic setting used to develop the Edwards Trinity and Pecos Valley aquifers conceptual models, and provides details on the study and suggestions for future model improvements.
Date:
April 2009
Creator:
Anaya, Roberto & Jones, Ian
System:
The Portal to Texas History
Please Pass the Salt: Using Oil Fields for the Disposal of Concentrate from Desalination Plants
The purpose of this report is to show that oil and gas fields can physically and chemically accept concentrate from desalination plants, and to recommend changes to statute and rules that would allow the disposal of concentrate in oil and gas fields.
Date:
April 2006
Creator:
Mace, Robert E.; Nicot, Jean-Philippe; Chowdhury, Ali H.; Dutton, Alan R. & Kalaswad, Sanjeev
System:
The Portal to Texas History
The Hydrogeology of Hudspeth County, Texas
This report provides results from a study on the Hudspeth County area's hydrogeology and immediate, short-term, and long-term water supplies and needs, conducted for the Texas Commission on Environmental Quality.
Date:
August 2005
Creator:
George, Peter; Mace, Robert E. & Mullican, William F., III
System:
The Portal to Texas History
Evaluation of Enhanced Recharge Potential to the Ogallala Aquifer in the Brazos River Basin, Hale County, Texas
This study evaluates groundwater recharge from Soil Conservation Service (SCS) (currently the Natural Resources Conservation Service) reservoirs to determine whether recharge could be enhanced by increasing storage capacity or by modifying the bottom of the reservoirs.
Date:
August 2003
Creator:
Scanlon, Bridget; Angle, Edward S.; Christian, Brent; Pi, Jonathan; Martinez, Kris; Reedy, Robert et al.
System:
The Portal to Texas History
Groundwater Availability of the Trinity Aquifer, Hill Country Area, Texas: Numerical Simulations through 2050
This report describes the construction and calibration of the numerical groundwater flow model and presents results of predictive simulations of water levels for the next 50 years based on projected demands from Regional Water Planning Groups.
Date:
September 2000
Creator:
Mace, Robert E.; Chowdhury, Ali H.; Anaya, Roberto & Way, Shao-Chih
System:
The Portal to Texas History
Changes in Groundwater Conditions in the Edwards and Trinity Aquifers, 1987-1997, for Portions of Bastrop, Bell, Burnet, Lee, Milam, Travis, and Williamson Counties, Texas
The purpose of this report is to update the Texas Water Development Board's Report 326, addressing groundwater problems in the study area related to unreliable supplies during short-term drought demands and long-term economic development.
Date:
November 1999
Creator:
Ridgeway, Cindy & Petrini, Harald
System:
The Portal to Texas History
Model Refinement and Applications for the Edwards (Balcones Fault Zone) Aquifer in the San Antonio Region, Texas
This report provides information on the project to reevaluate the Texas Water Development Board's existing Edwards aquifer flow model and refine the simulation of water levels and springflows in the San Antonio region.
Date:
July 1992
Creator:
Texas Water Development Board
System:
The Portal to Texas History
Evaluation of Water Resources in Bell, Burnet, Travis, Williamson and Parts of Adjacent Counties, Texas
This report summarizes the results of an investigation of potential water supply and water quality problems conducted under the critical area program, Chapter 52 of the Texas Water Code, in Williamson and parts of adjacent counties in Central Texas.
Date:
January 1991
Creator:
Duffin, Gail & Musick, Steven P.
System:
The Portal to Texas History
Test Well Drilling Investigation to Delineate the Downdip Limits of Usable Quality Ground Water in the Edwards Aquifer in the Austin Region, Texas
Report on the Edwards aquifer in the Austin region, including test well findings, core testing, drilling logs, core analysis, and more.
Date:
April 1990
Creator:
Flores, Robert
System:
The Portal to Texas History
Ground-Water Evaluation in and Adjacent to Dripping Springs, Texas
This report includes the evaluation of the current ground-water conditions, primarily in terms of water quality, in the Dripping Springs area.
Date:
March 1990
Creator:
Muller, Daniel A.
System:
The Portal to Texas History
Hydrogeology of the Terlingua Area, Texas, March 1990
Report documenting the geology and hydrology of the Terlingua area.
Date:
March 1990
Creator:
Fallin, J. A. Tony
System:
The Portal to Texas History
Evaluation of Ground-Water Resources in Parts of Loving, Pecos, Reeves, Ward and Winkler Counties, Texas
From Purpose: "This study in the area of Loving, Pecos, Reeves, Ward, and Winkler Counties was conducted to address the problems of overdraft and quality deterioration with respect to the Cenozoic Pecos Alluvium aquifer (previously referred to as the Cenozoic Alluvium aquifer), which is the primary aquifer in the area. A discussion of underlying aquifers is also included" (p. 1).
Date:
January 1990
Creator:
Ashworth, John B.
System:
The Portal to Texas History
Evaluation of Ground-Water Resources in the Lower Rio Grande Valley, Texas
This report includes studies on critical ground water areas identified by the state water agencies and the findings and recommendations on whether a ground-water conservation district should be established in the respective areas in order to address ground-water problems.
Date:
January 1990
Creator:
McCoy, Wesley T.
System:
The Portal to Texas History
Evaluation of Water Resources in Part of Central Texas
Report studying the central Texas region's water resources, with notes that there has been rapid decline and contamination in the area. The aquifer is also being used faster than it can naturally replenish.
Date:
January 1990
Creator:
Baker, Bernard; Duffin, Gail; Flores, Robert & Lynch, Tad
System:
The Portal to Texas History
Evaluation of Water Resources of Fort Bend County, Texas
Report evaluating the groundwater resources of Fort Bend County, Texas. The report discusses the geology of the area, projected water demands, and the current and potential availability of groundwater in Fort Bend County.
Date:
January 1990
Creator:
Thorkildsen, David
System:
The Portal to Texas History