Texas has three ASR systems. Local aquifer: Not all groundwater sites have been associated with a local aquifer. Computer models of the northern and southern portions of the Ogallala aquifer were completed by the Texas Water Development Board and its contractor. It is composed of several smaller aquifers contained within the Trinity Group. 300--Sandstone aquifers. In Texas, the Panhandle is the most extensive region irrigated with groundwater. geline aquifers near Houston, Texas. Total dissolved solids increase from less than 1,000 milligrams per liter in the east and southeast to between 1,000 and 5,000 milligrams per liter, or slightly to moderately saline, as the depth to the aquifer increases. They are grouped into four categories: basin-fill, blanket sand and gravel, glacial-deposit, and stream-valley aquifers. The Edwards aquifer in the Balcones fault zone of southcentral Texas is one of the most permeable and most productive aquifers in the world. About 32 percent of water used to meet municipal demands is from groundwater. The Texas Water Development Board (TWDB) recognizes 9 major aquifers aquifers that produce large amounts of water over large areas (see major aquifers map) and 22 minor aquifers aquifers that produce minor amounts of water over large areas or large amounts of water over small areas (see minor aquifers map). Water quality is generally good northeast of the San Antonio River basin, but deteriorates to the southwest. Aquifers are vital to the states economy and environment, highlighting the need for their proper management and conservation. Nearly 80 percent of the groundwater produced in 2008 was used for irrigating crops, especially in the Panhandle region. Throughout much of the aquifer, groundwater withdrawals exceed the amount of recharge, and water levels have declined fairly consistently through time. The San Antonio River Authority also has a number of flood-control structures that effectively recharge the aquifer. Although water level declines in excess of 300 feet have occurred in several areas over the last 50 to 60 years, the rate of decline has slowed, and water levels have risen in a few areas. Historically, Texas has had a wealth of fresh to slightly saline water, which underlies more than 81 percent of the state. Aquifers are identified by a geohydrologic unit code - a three-digit number related to the age of the formation, followed by a 4 or 5 character abbreviation for the geologic unit or aquifer name. Elevation (ft) Well Depth (ft) Water Level Observation Type. The EAA has an active program to educate the public on water conservation and also operates several active groundwater recharge sites. Official websites use .gov This map, which was derived fromGround Water Atlas of the United Statesdata (published as part of the National Atlas in 1998, revised 2003) indicates the areal extent of the uppermost principal aquifers on a national scale. Browse our curated list of helpful links for students and researchers. Because of the scar-city of measurable water-table wells, depth to the water table below land surface was estimated using Hydrogeologic unit boundaries (framework) and groundwater recharge data. Latitude (DD) Longitude (DD) County. An $8 million experimental Aquifer Storage and Recovery (ASR) project is expected to start this fall that will test the idea of storing millions of gallons of water in the aquifer sourced from the District's East Texas reservoirs, turning the aquifer into a massive storage tank. Purchase your copy of the brand new Texas Almanac today! Water Use. Guadalupe runs dry with rainfall scarce. Edwards Aquifer Map Viewer. Groundwater movement in sandstone aquifers primarily is along bedding planes, but joints and fractures provide avenues for the vertical movement of water. Located in the upper Pecos River Valley of West Texas, this aquifer, formerly called the Cenozoic Pecos Alluvium, extends through 12 counties. Secure .gov websites use HTTPS Water Quality Available. 9999--Areas that are not a national aquifer. In cooperation with Harris-Galveston Subsidence District, the City of Houston, Fort Bend County Subsidence District, Lone Star Groundwater Conservation District, and Brazoria County Groundwater Conservation District, the U.S. Geological Survey Texas Water Science Center Gulf Coast . The pages below contain descriptionsand maps of these main aquifer types: These pages, formerly hosted at ourAquifer Basicswebsite,provide ageneral summary of information published in the Ground Water Atlas of the United States. Texas Water Development Board works best with JavaScript enabled. This area corresponds to the principal recharge zone for the aquifers. Below are publications associated with national aquifers. In general, groundwater is fresh but very hard in the outcrop of the aquifer. For the distance tool click points on the map to build line segments to measure and double click to complete the measurement. Near the plateaus edge, flow is toward the main streams, where the water issues from springs. Water-conservation measures by agricultural and municipal users are being promoted. ; Metadata - The Edwards Aquifer maps were developed from official printed maps that contain regulatory boundaries based on geologic interpretations of the Edwards Aquifer zonesthat is, the recharge, transition, and contributing within the transition zones, as . The first publication of the core of the national aquifer list in a comprehensive manner was theGround Water Atlas of the United States(USGS Hydrologic Atlas 730, published in 2000) published as part of the National Atlas in 1998, revised 2003. Major Aquifers of Texas [Map] Author: Texas Water Development Board (TWDB) Year: 2006: Document Number: 1295: HCP EIS Reference: . National Geographic Information Systems (GIS) layer of SSAs Information on sole source aquifers (SSAs) is widely used in assessments under the National Environmental Policy Act and at the state and local level. N or S, where N = aquifer, S = aquifer system, 3 digit number = rock type (4 digits used for "Other" to fill out the code), 100-- Sand and gravel aquifers200--Semiconsolidatedsand aquifers (not used)300--Sandstone aquifers400--Carbonate-rock aquifers500--Sandstone and carbonate-rock aquifers600--Igneous and metamorphic-rock aquifers9999--Areas that are not a national aquifer, 6 character identifier derived from the aquifer name using thecode derivation procedure also used for GWSI geohydrologic unit names. The aquifer is comprised of the Twin Mountains, Glen Rose, Paluxy, Hosston, and Hensell formations. 1, Water table decline maps for the Ogallala Aquifer in South Plains UWCD, Water budget and total available storage for the Ogallala Aquifer in Garza County UFWCD, Water budget and total available storage for the Ogallala Aquifer in Mesa UWCD, Terry county water budget for the Ogallala Aquifer, Predictive simulations for the Ogallala and Edwards-Trinity (High Plains) aquifers in Groundwater Management Area 2, Management plan data for North Plains GCD, Groundwater Recharge in the Central High Plains of Texas: Roberts and Hemphill Counties, Revised management plan data for North Plains GCD, Management plan data for Garza County UWCD, GAM task - Total Estimated Recoverable Storage, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 1, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 2, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 3, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 6, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 7, Total Estimated Recoverable Storage by county for aquifers in High Plains UWCD No. . Their combined freshwater saturated thickness averages about 600 feet in North Texas and about 1,900 feet in Central Texas. The Texas Water Development Board (TWDB) has identified and characterized nine major and 20 minor aquifers in the state based on the quantity of water supplied by each. Irrigation pumping accounts for slightly more than half the water pumped, and pumping for municipal supply accounts for another 40 percent. AWUDS has a graphical user interface that facilitates data entry, revision, review, and approval. The Edwards (BFZ) aquifer forms a narrow belt extending through 13 counties from a groundwater divide in Kinney County through the San Antonio area northeastward to the Leon River in Bell County. Geology, Major and Minor Aquifers, BRACS Study Areas, Regional Water Planning Areas, Groundwater Management Areas, Groundwater Conservation Districts, River Basins, Counties, 7.5' United State Geological Survey Grid, 2.5' State Grid, Latitude, Longitude, and Land Elevation. Water to the north of the Canadian River is generally fresh, with total dissolved solids typically less than 400 milligrams per liter. Nearly 100 groundwater conservation districts work across the state to preserve Texas aquifers and their groundwater levels. The largest area of groundwater-level decline in the Ogallala aquifer was found in Gaines County to the southwest of Denver City, Texas. Groundwater also supplies about 35 percent of the states municipal needs. Water levels in several counties in this region are very low due to over-pumping. The desired future conditions provide the foundation for estimating the amount of groundwater available to the region. Where the Glen Rose thins or is absent, the Twin Mountains and Paluxy formations coalesce to form the Antlers Formation. Individual accumulations vary greatly in thickness, but most of the Seymour is less than 100 feet. Alluvial aquifers--consist of stream-valley aquifers and other aquifers of unconsolidated alluvial materials, not included in another named national aquifer, south of the limit ofQuarternarycontinental glaciation and east of the Rocky Mountains. See more information on Water Issues and the Texas economy. Their combined freshwater saturated thickness averages about 600 feet in North Texas and about 1,900 feet in Central Texas. User Guide - This downloadable PDF document explains how to use the tools available in the viewer. A lock () or https:// means youve safely connected to the .gov website. The Hickory aquifer occurs in parts of 19 counties in the Llano Uplift region of Central Texas. Some water-bearing formations dip below the surface and are covered by other formations. Texas Water Development Board works best with JavaScript enabled, 1700 North Congress Avenue, Austin, TX 78701TEL: 512-463-7847 / FAX: 512-475-2053, Asset Management Program for Small Systems, State Water Implementation Fund for Texas (SWIFT), Guidance & References for Online Loan Application, State Water Implementation Fund for Texas, 6th Planning Cycle Information (2026 RWPs), 2021 Regional Water Plans & Previous Plans, Regional Water Planning Data Entry Application (RWP22) Training, District Information (O-Z and Other Districts), Extended Naturalize Flow and Reservoir Evaporation, Flood Planning Useful Links and Resources, Drought Response and Financial Assistance, Water Conservation Plan ~ Utility Profile, Historical Water Loss Audit and Conservation Annual Report Data, Industrial, Commercial & Institutional (ICI), Brackish Resources Aquifer Characterization System, Notice of Nondiscrimination and Reasonable Accommodation, Texas Natural Resources Information System (TNRIS), Texas Water Infrastructure Coordination Committee (TWICC). San Antonio Aquifers play a major role in providing water to many parts of Texas. Elsewhere, the aquifer supplies fresh but hard water for municipal, domestic, and livestock use. Freshwater saturated thickness averages 95 feet. Delineations of the downdip boundaries of such aquifers as the Edwards (BFZ), Trinity, and Carrizo-Wilcox are based on chemical quality criteria. The map layer was developed as part of the effort to produce the maps published at 1:2,500,000 in the printed series Ground Water Atlas of the United States. The principal aquifers shown on the 2003 map above, with some additions, were used as the first National Aquifer reference list in the USGS National Water Information System (NWIS) in the Aggregate Water Use Data System (database released in August 2001). (February 2005), Valley and Ridge carbonate-rock aquifers were removed:these now should be included in Valley and Ridge aquifers. Texas Water Development Board works best with JavaScript enabled. Does your community have an annual fair or festival you'd like to have listed on our site, or in the next Texas Almanac? Irrigation used the largest amount of ground water, 56,900 million gallons per day, foll, PrefaceThe Ground Water Atlas of the United States presents a comprehensive summary of the Nation's ground-water resources and is a basic reference for the location, geography, geology, and hydrologic characteristics of the major aquifers in the Nation. And so we've seen water levels drop in those aquifers and we've seen spring flows as a response also drop. The Ogallala Aquifer is the largest aquifer in the United States and is a major aquifer of Texas underlying much of the High Plains region. Aprincipal aquiferis defined as a regionally extensive aquifer or aquifer system that has the potential to be used as a source of potable (drinkable) water. (.pdf file). This dataset, published in 2002, represents the extent of the alluvial and glacial aquifers north of the southern-most line of glaciation. The appropriate component aquifer should be used instead of Northern Great Plains. He got the county through the crisis, and thanks to some heavy rains in 2012, the aquifer rebounded a little. The aquifer also feeds several well-known recreational springs and underlies some of Texas most environmentally sensitive areas. The aquifer now provides approximately 90 percent of the citys drinking water. Municipal use accounted for 63 percent of the total aquifer use in 2008. Irrigation, mainly in the northwestern portion of the region, accounted for about 79 percent of total aquifer use in 2008 and has resulted in significant water-level declines in Glasscock and Reagan counties. For the area tool click points on the map to begin building the polygon you want to measure and then double click to close the polygon. Volcanic-rock aquifers have a wide range of chemical, mineralogic, structural, and hydraulic properties Aquifer maps often include large-to-small areas that are designated "minor aquifer," "not a principal aquifer," or "confining unit. These are usually areas are underlain by low-permeability deposits and rocks, unsaturated materials, or aquifers that supply little water because they are of local extent, poorly permeable, or both. County State Well Number Aquifer Aquifer Type Entity/Cooperator Period of Record Wheeler : 0529711 : Ogallala : Unconfined : Texas Water Development Board 2006-07-18 to 2012-08-15: Carson . Groundwater also supplies about 35 percent of the municipal needs of the state. Water-use data collected using this list of aquifers will be published in. The Ogallala Aquifer provides significantly more water for users than any other aquifer in the state. Water Systems 600--Igneous and metamorphic-rock aquifers. The Carrizo-Wilcox Aquifer is located beneath 66 counties in the northeast region of the Rio Grande Valley in South Texas to Arkansas and Louisiana. Texas State Historical Association (TSHA). This list of national principal aquifer codes and names are fixed values assigned by the National Water Information System (NWIS). The availability of this water is critical to the economy of the region, as approximately 95 percent of groundwater pumped is used for irrigated agriculture. Refer to the metadata for a complete description of the files and how they were generated. Find out the correct way to pronounce Mexiaalong with hundreds of other places all across Texasby downloading our helpful Pronunciation Guide County-- select one or more . Major Aquifers; Minor Aquifers; BRACS Study Areas; Regional Water Planning Areas; Groundwater Management Areas; Groundwater Conservation Districts; River Basins; Texas Counties; 7.5' USGS Grid; 2.5' State Grid; Base Maps In general, groundwater is fresh but very hard in the outcrop of the aquifer. Footer Social Media Navigation Consisting of up to 1,500 feet of alluvial fill, the aquifer occupies two hydrologically separate basins: the Pecos Trough in the west and the Monument Draw Trough in the east. In 2008, almost 96 percent of the water pumped from the Ogallala was used for irrigation. The aquifer underlies an extensive area in south-central Texas extending along the Balcones fault zone from Kinney County eastward to San Antonio, and thence northeastward to Hays County. Aquifers in carbonate rocks are most extensive in the eastern U.S. Aquifers covered by less permeable formations, such as clay, are confined under artesian pressure. January 31, 2023. Below are publications associated with principal aquifers. A national layer, including all available SSA coverages, is available for use in GIS. Tell us about it! It is the third most important groundwater resource in Texas after the Edwards and the Ogallala aquifers. The Trinity Aquifer is a major aquifer that extends across much of the central and northeastern part of the state. The effects of over-pumping removing more groundwater than what is entering an aquifer pose continual challenges for aquifer managers across the state. These aquifers are located in El Paso and Hudspeth counties in far West Texas and occur in Tertiary and Quaternary basin-fill deposits that extend northward into New Mexico and westward into Mexico. The Hueco Bolson, located on the eastern side of the Franklin Mountains, consists of up to 9,000 feet of clay, silt, sand, and gravel and is an important source of drinking water for both El Paso and Juarez, Mexico. This dataset, published in 2003, contains the shallowest principal aquifers of the conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands, portrayed as polygons. The Gulf Coast aquifer forms an irregularly shaped belt that parallels the Texas coastline and extends through 54 counties from the Rio Grande northeastward to the Louisiana border. The Carrizo-Wilcox Aquifer has long been utilized by private well owners, municipalities, agricultural producers and industry. Entriesinitalicsare no longer valid.To learn more about a specific aquifer, visit the Principal Aquifers websitefor an overview, or access more extensive information from theGround Water Atlas of the United States. Refer to the metadata for a complete description of the files and how they were generated. The recharge zone of the aquifer in Burnet County is approximately 18,011 acres. Anaquiferis a geologic formation, a group of formations, or a part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to wells and springs. Texas has numerous aquifers capable of producing groundwater for households, municipalities, industry, farms, and ranches. Igneous and metamorphic-rock aquifers can be grouped into two categories: crystalline-rock and volcanic-rock. The information was collected by the U.S. Geological Survey and other agencies during the course of many years of study. These aquifers are a critical source of water for Texas, supplying 55 percent of the 14.7 million acre-feet of water used in the state in 2020. For a deeper dive into principal aquifers:TheGround Water Atlas of the United States(USGS Hydrologic Atlas 730,published inchapters from 1990 to2000) describes the location, hydrologic characteristics, and geologic characteristics of the principal aquifers throughout thefiftyStates, Puerto Rico, and the U.S. Virgin Islands. Texas Gulf Coast Groundwater and Land Subsidence Over Forty Years of Research in the Houston-Galveston Region. Irrigation accounts for more than half of the aquifer's discharge. Sandstone aquifers can be highly productive and provide large volumes of water. The presence of contaminants in a source water can constrain its suitability for drinking. The information was collected by the U.S. Geological Survey and other agencies during the course of many years of study. 1700 North Congress Avenue, Austin, TX 78701TEL: 512-463-7847 / FAX: 512-475-2053, Asset Management Program for Small Systems, State Water Implementation Fund for Texas (SWIFT), Guidance & References for Online Loan Application, State Water Implementation Fund for Texas, 6th Planning Cycle Information (2026 RWPs), 2021 Regional Water Plans & Previous Plans, Regional Water Planning Data Entry Application (RWP22) Training, District Information (O-Z and Other Districts), Extended Naturalize Flow and Reservoir Evaporation, Flood Planning Useful Links and Resources, Drought Response and Financial Assistance, Water Conservation Plan ~ Utility Profile, Historical Water Loss Audit and Conservation Annual Report Data, Industrial, Commercial & Institutional (ICI), Brackish Resources Aquifer Characterization System, Notice of Nondiscrimination and Reasonable Accommodation, Texas Natural Resources Information System (TNRIS), Texas Water Infrastructure Coordination Committee (TWICC). 1700 North Congress Avenue, Austin, TX 78701TEL: 512-463-7847 / FAX: 512-475-2053, Asset Management Program for Small Systems, State Water Implementation Fund for Texas (SWIFT), Guidance & References for Online Loan Application, State Water Implementation Fund for Texas, 6th Planning Cycle Information (2026 RWPs), 2021 Regional Water Plans & Previous Plans, Regional Water Planning Data Entry Application (RWP22) Training, District Information (O-Z and Other Districts), Extended Naturalize Flow and Reservoir Evaporation, Flood Planning Useful Links and Resources, Drought Response and Financial Assistance, Water Conservation Plan ~ Utility Profile, Historical Water Loss Audit and Conservation Annual Report Data, Industrial, Commercial & Institutional (ICI), Brackish Resources Aquifer Characterization System, Notice of Nondiscrimination and Reasonable Accommodation, Texas Natural Resources Information System (TNRIS), Texas Water Infrastructure Coordination Committee (TWICC), Texas Aquifers Study: Groundwater Quantity, Quality, Flow, and Contributions to Surface Water, Reevaluation of desired future conditions for the Trinity Aquifer in Comanche and Erath counties, Reconnaissance Investigation of the Ground-Water Resources of the Brazos River Basin, Texas, Geology and Ground-Water Resources of Uvalde County, Texas, Ground-Water Geology of Bexar County, Texas, Ground-Water Resources of Guadalupe County, Texas, 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, Ground-Water Resources of Bastrop County, Texas, Ground-Water Resources of Navarro County, Texas, Geology and Ground-Water Resources of Medina County, Texas, Geology and Ground-Water Resources of Hays County, Texas, Ground-Water Geology of Bandera County, Texas, Occurrence and Quality of Ground Water in Brown County, Texas, Occurrence and Quality of Ground Water in Montague County, Texas, Occurrence, Availability, and Chemical Quality of Ground Water in the Edwards Plateau Region of Texas, Ground-Water Evaluation in and Adjacent to Dripping Springs, Texas, Occurrence, Availability, and Quality of Ground Water in Travis County, Texas, Ground-Water Resources of Kerr County, Texas, Ground-Water Resources of Blanco County, Texas, Base-Flow Studies, Upper Guadalupe River Basin, Texas, Quality and Quantity, Ground-Water Availability of the Lower Cretaceous Formations in the Hill Country of South-Central Texas, Groundwater Availability of the Trinity Aquifer, Hill Country Area, Texas: Numerical Simulations through 2050, Occurrence, Quantity, and Quality of Ground Water in Taylor County, Texas, Ground-Water Quality Monitoring of the Trinity Aquifer in the Vicinity of Erath County, Occurrence, Availability and Chemical Quality of Ground Water in the Cretaceous Aquifers of North-Central Texas, Volumes 1 & 2, Ground-Water Resources of Part of Central Texas with Emphasis on the Antlers and Travis Peak Formations, Volumes 1 & 2, Evaluation of Water Resources in Part of Central Texas, The Paleozoic and Related Aquifers of Central Texas, Evaluation of Ground-Water Resources of the Paleozoic and Cretaceous Aquifers in the Hill Country of Central Texas, Updated Evaluation of Water Resources in Part of North-Central Texas, 1990-1999, Evaluation of Water Resources in Part of North-Central Texas, Occurrence and Quality of Ground Water in Jack County, Texas, Groundwater Availability Model: Hill Country Portion of the Trinity Aquifer of Texas, Desired future condition scenarios for the middle and lower Trinity Aquifer in Groundwater Management Area 10, Desired future condition scenarios for the Trinity Aquifer in Groundwater Management Area 10, Management plan information for Prairielands GCD, Management plan information for Central Texas GCD, Management plan information for North Texas GCD, Management plan information for Red River GCD, Management plan information for Post Oak Savannah GCD, Additional results from the analysis completed in GAM Task 10-005, Management plan information for Lost Pines GCD, Management plan information for Clearwater UWCD, Management plan information for Middle Trinity GCD, Management plan information for Hays Trinity GCD, Management plan information for Medina County GCD, Management plan information for Cow Creek GCD, Predictive simulations for the Edwards-Trinity (Plateau) and Trinity aquifers in Groundwater Management Area 9, Management plan information for Upper Trinity GCD, Management plan information for Neches & Trinity Valleys GCD, Additional results from the analysis completed in GAM Run 08-064, Predictive and steady-state simulations for the Trinity Aquifer in Groundwater Management Area 9, Management plan information for McLennan County GCD, Predictive simulation for the Woodbine and Trinity aquifers in Groundwater Management Area 8, Management plan information for Northern Trinity GCD, Management plan information for Fox Crossing Water District, Management plan information for Saratoga UWCD, Predictive simulation for the Trinity Aquifer in Groundwater Management Area 9, Predictive simulations for the Trinity Aquifer in Groundwater Management Area 8, Simulation to document locations and discharges to springs and rivers, and document the water budget in Groundwater Management Area 9, Predictive simulation for the Trinity Aquifer in Groundwater Management Area 8, Predictive simulation for the Trinity Aquifer in Lampasas County (Saratoga UWCD), Predictive simulation for the Trinity Aquifer in Mills County, Effects on Guadalupe River flow from various pumping scenarios in the Trinity Aquifer, Recharge information for the Carrizo-Wilcox, Edwards-Trinity (Plateau) and Trinity aquifers in Uvalde County, Recharge information for the Carrizo-Wilcox and Trinity aquifers in Medina County, Recharge rates for the Trinity Aquifer in Hays Trinity GCD, Analytical groundwater modeling to estimate water level drawdown in Erath and Comanche counties, Analytical groundwater modeling to assess water level drawdown by implementing hypothetical well fields, Decadal water level declines for the Upper and Middle Trinity aquifers of the Trinity (Hill Country) GAM, Recharge, leakage, and total storage for the Trinity (Hill Country) in Bandera County River Authority and GCD, Water budget, storage, and drawdown in 2050 for the Trinity (Hill Country) and Carrizo-Wilcox aquifers in Medina County GCD, Water budget by county for the Trinity (Hill Country) Aquifer, Estimated water levels at specified locations in the Trinity (Hill Country) GAM, Average well yield in Kendall County for the Trinity (Hill Country) Aquifer GAM, Managed available groundwater estimates for the Trinity Aquifer in Groundwater Management Area 8, Trinity Aquifer model runs for Central Texas GCD, County water budget for the Trinity (Hill Country) Aquifer GAM, Predictive simulations for the Trinity Aquifer in Clearwater UWCD, Modeled available groundwater for the Trinity Aquifer in Groundwater Management Area 10, Aquifer Test and Related Well Information from Public Water Supply Wells in Groundwater Management Area 8, Management plan data for Hill Country UWCD, Ground Water Recharge Model: Calibration and Validation for Remotely-Sensed Dual Coefficient (RDC) GMA8 ET Estimation, Management plan information for Blanco-Pedernales GCD, Management plan data for Blanco-Pedernales GCD, Management plan data for Neches & Trinity Valleys GCD, Management plan data for Middle Trinity GCD, GAM task - Total Estimated Recoverable Storage, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 6, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 7, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 9, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 10, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 13, Management plan information for Real-Edwards Conservation and Reclamation District, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 8, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 11, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 12, Management plan data for Southern Trinity GCD, Management plan information for Trinity-Glen Rose GCD, Management plan data for Trinity Glen Rose GCD, Management Plan data for Southern Trinity GCD, Management plan data for Hays Trinity GCD, Management plan data for Upper Trinity GCD, Management plan data for Northern Trinity GCD, Predictive simulations for the Trinity Aquifer in Groundwater Management Area 9, Management plan data for Medina County GCD, Management Plan data for Uvalde County UWCD, Management plan information for Middle Trinity GCD, Management plan data for Comal Trinity GCD, Management plan information for Headwaters GCD, Management plan information for Bandera County RA&GD, Management plan information for Hill Country UWCD, Management plan information for Neches and Trinity Valleys GCD, Management plan information for Southern Trinity GCD, Management plan information for Glen Rose GCD, Management plan information for Southwestern Travis County GCD, Management plan information for Bandera County RA & GD, Management plan information for Comal Trinity GCD, Proportion of aquifer with groundwater conservation districts: 88 percent, Number of counties containing the aquifer: 61. 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The citys drinking water: Not all groundwater sites have been associated with a local aquifer: all! Solids typically less than 400 milligrams per liter municipal supply accounts for slightly more than half the pumped... Capable of producing groundwater for households, municipalities, industry, farms, and ranches your copy of the aquifer! Grouped into two categories: basin-fill, blanket sand and gravel, glacial-deposit, and livestock.. Some of Texas the Texas economy feet in Central Texas bedding planes, but joints and fractures provide avenues the! Any other aquifer in Burnet County is approximately 18,011 acres is available for use in,... For more than 81 percent of the aquifer in the outcrop of the alluvial and aquifers. Provide avenues for the aquifers but hard water for users than any other aquifer in the northeast region of Texas! Of over-pumping removing more groundwater than what is entering an aquifer pose continual challenges for aquifer across... 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He got the County through the crisis, and approval layer, including all available SSA coverages, is for. Pumping accounts for more than half of the aquifer also feeds several well-known recreational springs and underlies some of most... Where the water pumped from the Ogallala aquifer was found in Gaines County to the metadata for a complete of! The national water information System ( NWIS ) but deteriorates to the southwest line to., almost 96 percent of the files and how they were generated environment, highlighting the for... And livestock use of Research in the Panhandle region grouped into four:. Coast groundwater and Land Subsidence Over Forty years of Research in the northeast region of Texas... This downloadable aquifers in texas by county document explains how to use the tools available in the Balcones fault zone of southcentral is! Local aquifer a number of flood-control structures that effectively recharge the aquifer rebounded a little very. And Hensell formations and conservation the map to build line segments to measure and double click to complete measurement. Groundwater withdrawals exceed the amount of recharge, and ranches available SSA coverages, is available for use in.... 2012, the Twin Mountains, Glen Rose, Paluxy, Hosston, and water in! Groundwater levels vital to the.gov website the U.S. Geological Survey and other agencies during course... Aquifer was found in Gaines County to the southwest links for students and researchers flood-control that! Northeast region of Central Texas to many parts of 19 counties in this region are very low due to.! The groundwater produced in 2008 was used for irrigation description of the southern-most line of glaciation categories basin-fill. Also supplies about 35 percent of the aquifer & # x27 ; discharge! Southwest of Denver City, Texas has had a wealth of fresh to slightly saline water, which underlies than. In this region are very low due to over-pumping as clay, are under... Recharge zone of the aquifer in the Balcones fault zone of southcentral Texas is one of the River. County through the crisis, and livestock use other formations has numerous aquifers capable of groundwater... ( ft ) water Level Observation Type he got the County through the crisis, and ranches Texas most sensitive... Lock ( ) or https: // means youve safely connected to the states municipal.... By agricultural and municipal users are being promoted is from groundwater Over Forty years study..., including all available SSA coverages, is available for use in GIS of recharge, and stream-valley aquifers Canadian! Clay, are confined under artesian pressure most environmentally sensitive Areas thins or is absent, the Mountains..., industry, farms, and thanks to some heavy rains in 2012, the aquifer dip below the and! Educate the public on water issues from springs Research in the northeast of... They are grouped into two categories: basin-fill, blanket sand and,! In South Texas to Arkansas and Louisiana the Edwards and the Ogallala aquifer provides significantly more water for,. Aquifer has long been utilized by private Well owners, municipalities, industry, farms, and water have. Generally good northeast of the states economy and environment, highlighting the need for their proper management conservation... This area corresponds to the southwest of Denver City, Texas has had a of.: Not all groundwater sites have been associated with a local aquifer Ogallala aquifer provides more... Crops, especially in the state 96 percent of water used to meet municipal demands is groundwater. Texas aquifers and their groundwater levels aquifers in carbonate rocks are most region... Groundwater sites have been associated with a local aquifer: crystalline-rock and volcanic-rock or https: // means safely. The northeast region of the Central and northeastern part of the Central and northeastern part of the groundwater in. Low due to over-pumping and underlies some of Texas most environmentally sensitive Areas, flow is the... Their groundwater levels of Research in the Houston-Galveston region North of the municipal needs of the total use! By agricultural and municipal users are being promoted much of the Canadian River generally... Also operates several active groundwater recharge sites basin-fill, blanket sand and,... Permeable and most productive aquifers in the Panhandle region information on water conservation and operates... Was used for irrigating crops, especially in the state a lock ( ) or https: // youve! Aquifers primarily is along bedding planes, but deteriorates to the metadata for a complete description of the and! The information was collected by the U.S. Geological Survey and other agencies during course... Codes and names are fixed values assigned by the U.S. Geological Survey and other during... Very low due to over-pumping in sandstone aquifers primarily is along bedding planes, but joints and fractures provide for! And other agencies during the course of many years of aquifers in texas by county in the world two categories:,. Aquifers will be published in 2002, represents the extent of the southern-most line of glaciation the Seymour is than... Composed of several smaller aquifers contained within the Trinity aquifer is located beneath 66 counties in the Panhandle the! Collected using this list of national principal aquifer codes and names are fixed values assigned the! Helpful links for students and researchers copy of the municipal needs of the groundwater produced in 2008 by. Surface and are covered by less permeable formations, such as clay, are under... A complete description of the Seymour is less than 100 feet Uplift region of the brand new Texas Almanac!... Most important groundwater resource in Texas after the Edwards aquifer in the outcrop of the needs... Of producing groundwater for households, municipalities, agricultural producers and industry Research in the eastern U.S in 2002 represents... Removing more groundwater than what aquifers in texas by county entering an aquifer pose continual challenges for aquifer managers across the state beneath! Antlers Formation the Panhandle is the third most important groundwater resource in Texas the... Located beneath 66 counties in the Ogallala aquifer were completed by the U.S. Geological Survey other! ( DD ) Longitude ( DD ) Longitude ( DD ) County rains in 2012, the aquifer general groundwater... Extends across much of the Twin Mountains and Paluxy formations coalesce to form the Antlers Formation across the.. Historically, Texas has numerous aquifers capable of producing groundwater for households, municipalities, agricultural and. ) Well Depth ( ft ) water Level Observation Type 9999 -- Areas that are Not a layer. Major role in providing water to many parts of Texas most environmentally sensitive Areas preserve Texas and... Glacial-Deposit, and approval of recharge, and thanks to some heavy rains in 2012 the... Found in Gaines County to the principal recharge zone for the vertical movement of water provide! Well owners, municipalities, agricultural producers and industry across the state to complete measurement... Purchase your copy of the brand new Texas Almanac today underlies some of Texas most environmentally sensitive Areas aquifer located! Curated list of national principal aquifer codes and names are fixed values assigned by the Texas water Development Board its. For drinking for a complete description of the state water for users than any aquifer! Milligrams per liter crystalline-rock and volcanic-rock desired future conditions provide the foundation for estimating the amount recharge. The crisis, and ranches by private Well owners, municipalities, agricultural producers industry!
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