Aquifer Storage and Recovery Documents

The links below provide access to our Aquifer Storage and Recovery-related publications.

Legislative Reports

1999

Aquifer Storage and Recovery: Status of Current Projects, Report to the 76th Legislature

This legislatively mandated report provides a status update on ASR projects during the 1997-1999 biennium.

1997

H.B. 1989 - Aquifer Storage and Recovery, Report to the 75th Legislature

In 1995, the Legislature directed TWDB to prepare a biannual report on pilot aquifer storage and retrieval projects. The report fulfills this requirement. It includes an update on the progress of authorized pilot projects, results of TWDB studies, and anticipated appropriations from general revenues necessary to investigate other aquifers. The report also provides an overview of the ASR process and its historical and potential use in Texas.

Technical Reports

2015

Aquifer Storage and Recovery in Texas: 2015, June 2015, Matt Webb, TWDB

The Technical Note compiles historical activities, current facilities, recommended water management strategies and other potential activities related to aquifer storage and recovery in Texas.

2012

Geologic Characterization of and Data Collection in the Corpus Christi Aquifer Storage and Recovery Conservation District and Surrounding Counties, September 2012, John E. Meyer, TWDB

A number of sand layers of varying thicknesses that could potentially serve as reservoirs for aquifer storage and recovery are present in the District. Water quality changes from brackish to saline (total dissolved solids greater than 10,000 milligrams per liter) at approximately 1,000 feet below ground surface in the western third of the District. Arsenic and radionuclides are present in some geologic units. The data collected can be used during the next phase of aquifer storage and recovery evaluation to determine likely well field sites. Drilling test wells will be required to determine site-specific aquifer properties, reservoir lithology and continuity, and water quality.

TWDB-Funded Contract Reports

2015

Development of Regional Plan for Aquifer Storage and Recovery and Off Channel Storage in the Golden Crescent Region of Texas

The study evaluated the potential to implement ASR and/or off-channel storage to stretch existing water supplies, improve reliability, and maximize the use of existing surface water rights in the Guadalupe River Basin. The study concludes the City of Victoria has several sites with hydrogeologic characteristics well suited for ASR facilities. The study recommends implementing an ASR testing program at two specific sites: the Victoria Water Treatment Plant and Water Treatment Plant No. 3. For Guadalupe Basin River Authority, the study recommends implementing an ASR testing program at the Port Lavaca Water Treatment Plant.

2014

Uvalde Alternate Groundwater Supply Infrastructure Planning Report, City of Uvalde, Texas

The city and the surrounding areas rely heavily on the Edwards Aquifer for water supplies. The area is under the jurisdiction of the Edwards Aquifer Authority for the Edwards Aquifer and the Uvalde County Underground Water Conservation District for non-Edwards Aquifer sources. The primary benefit of the proposed strategy was to provide additional water supply during drought when pumping from the Edwards Aquifer is curtailed. Potential water sources identified included the Austin Chalk and Buda Limestone formations and storage would be in the Carrizo formation.

2011

An Assessment of Aquifer Storage and Recovery in Texas

The report presents results of a study to determine why ASR has been successful for at least three Texas utilities but has not been implemented to a greater extent in Texas. It makes public policy recommendations, and discusses the technical and legal changes needed to advance ASR in Texas.

1999

Aquifer Storage Recovery Feasibility Investigation, Step 2, City of Laredo, Texas

This follow up to the City of Laredo Step 1 study provides limited geochemical and hydrogeologic evaluation that indicates the injection of potable water into the Laredo Formation is possible. However, the results of the evaluation indicate that injection will be complicated by low transmissivities. Additionally, the geochemical characteristics of the water and biological activity in the aquifer appear conducive to mineral precipitation in the aquifer. Recommendations to implement a full-scale ASR system are included.

Comprehensive Sabine Watershed Management Plan, Sabine River Authority

The plan considered City of Kilgore and Canton as candidates for ASR facilities. The primary benefit was deferment of surface water treatment plant expansion capital expenditures. Treated water from the Sabine River would be injected into formations of the Carrizo-Wilcox Aquifer during times of low demand and recovered during peak demand times, reducing necessary peak capacity of the existing surface water treatment plants.

1998

Preliminary Investigation and Feasibility Analysis, Step 1, San Antonio Water System and Bexar Metropolitan Water District, San Antonio, Texas

The findings of the Step 1 investigation indicate that there is a beneficial use for ASR in SAWS' and BexarMet's future water strategy. Potable water can be stored in remote parts of the service areas where distribution systems may be limited in capacity. Preliminary analyses indicate that the maximum use of ASR for SAWS and BexarMet would be 28,000 ac-ft/yr and 9,000 ac-ft/yr, respectively. The cost of ASR stored water ranges from $82 per ac-ft to $398 per ac-ft.

1997

Aquifer Storage Recovery Feasibility Investigation, Step 2, City of Brownsville, Texas

A drilling test program was completed as part of the Step 2 report. Expected well yields range from 500 to 700 gpm. The Step 1 conceptual model was updated. The resulting system proposal consists of three or four wells per site at several sites to support 10 MGD of production capacity. All wells would be completed in the Gravel Zone formation. Further testing and system development is recommended.

1996

Aquifer Storage Recovery Feasibility Investigation, Step 1, City of Laredo, Texas

The results of the Step 1 investigation find that ASR could provide beneficial use to Laredo. These uses include helping to meet peak demand and postponement of water treatment plant expansion. A need for more detailed characterization of the available storage zones is noted. A test drilling program to evaluate the Laredo Formation is recommended.

Aquifer Storage Recovery Feasibility Investigation, Step 1, City of Brownsville, Texas

This preliminary study found that ASR could allow the City of Brownsville to maximize the use of its existing surface water rights. A modular implementation approach was developed using three sites. Local groundwater is generally saline so available data was insufficient to provide full storage zone characterization. Therefore, it was recommended that investigation continue with a test drilling program.

1992

Aquifer Storage Recovery Feasibility Investigation, Phase IIB - Full-Scale Testing and Evaluation, Upper Guadalupe River Authority, Kerrville, Texas

Following up on preliminary studies, this report summarizes work performed for the Upper Guadalupe River Authority in 1990 and 1991 to determine the feasibility of ASR in Kerrville. The test results were positive and the report discusses the development of an implementation plan.

1989

Aquifer Storage Recovery Feasibility Investigation, Phase IIA, Volume I, Upper Guadalupe River Authority, Kerrville, Texas

A Phase I Feasibility Study, completed in April 1988 for the Upper Guadalupe River Authority identified the Hosston-Sligo Sand as showing the highest potential for storing water. However, additional geological data was needed to confirm the preliminary conclusions. This current study was conducted to provide this information. The study included the construction and testing of a 7-inch-diameter production zone monitor well in the Hosston-Sligo Sand at the plant site. Construction methods, testing, and recommendations for future work are presented in the report.

Aquifer Storage Recovery Feasibility Investigation, Phase IIA, Volume II (Appendices), Upper Guadalupe River Authority, Kerrville, Texas

Appendices to accompany the 1989 Phase IIA ASR report for the Upper Guadalupe River Authority.

1988

Aquifer Storage Recovery Feasibility Investigation, Phase I Preliminary Assessment, Upper Guadalupe River Authority, Kerrville, Texas

This feasibility investigation is the first of a three-phase ASR study and development program for the Upper Guadalupe River Authority. The results of this investigation show that an aquifer storage recovery program appears feasible in Kerrville. Indicators are all positive in the areas of aquifer performance, cost, and institutional/legal concerns. The report recommends a Phase II field investigation to confirm feasibility in a prototype ASR well.

Presentations

2016

Aquifer Storage and Recovery: Its State in the State, 1.7 MB
Matthew Webb, TWDB | Bell County Water Symposium, Killeen, Texas, November 16, 2016

Aquifer Storage and Recovery: Its State in the State, 1.2 MB
Matthew Webb, TWDB | American Groundwater Protection Council Annual Forum, Orlando, Florida, September 13, 2016

Aquifer Storage and Recovery: Its State in the State, 0.8 MB
Matthew Webb, TWDB | Texas Groundwater Protection Committee, Austin, Texas, July 20, 2016

Rider 25: Innovative Storage Demonstration Projects, 0.8 MB
Matthew Webb, TWDB | Texas Aquifer Conference, Austin, Texas, June 9, 2016

Past, Present, and Future: Aquifer Storage and Recovery in Texas, 2.2 MB
Matthew Webb, TWDB | Austin Geological Society, Austin, Texas, April 4, 2016

Aquifer Storage and Recovery in Texas, 1.2 MB
Matthew Webb, TWDB | Environmental Protection Agency Region 6 Five State Meeting, Dallas, Texas, January 27, 2016

2015

Aquifer Storage and Recovery in Texas: What Is It & Where Do We Stand?, 2.5 MB
Matthew Webb, TWDB | Texas A&M American Water Resources Association, College Station, Texas, October 15, 2015

Aquifer Storage and Recovery in Texas: What Is It & Where Do We Stand?, 1.2 MB
Matthew Webb, TWDB | Capital Area Chapter Texas American Water Works Association, Austin, Texas, August 21, 2015

Aquifer Storage and Recovery in Texas, 1.1 MB
Matthew Webb, TWDB | City of Corpus Christi, Corpus Christi, Texas, July 9, 2015

History and Status of ASR in Texas, 1.0 MB
Matthew Webb, TWDB | Texas Aquifer Conference, Austin, Texas, June 26, 2015

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