The Ogallala Aquifer provides significantly more water for users than any other aquifer in the state. Irrigation pumpage accounted for 94 percent of the total use from the aquifer in 2008. The study area comprises about 2,000 square miles of out-crops of the Chicot and Evangeline aquifers in northwest Harris County, Montgomery County, and southern Walker County. 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. 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. These aquifers, which are in rocks that range in age from Pleistocene to Cambrian, Aquifers covered by less permeable formations, such as clay, are confined under artesian pressure. This aquifer consists of isolated areas of alluvium found in parts of 25 north-central and Panhandle counties in the upper Red River and Brazos River basins. The Maverick Aquifer, as it's been named, lies more than a mile deep under parts of Maverick, Uvalde, Dimmit and Kinney Counties. The aquifer also feeds several well-known recreational springs and underlies some of Texas most environmentally sensitive areas. Eastward-flowing streams during the Quaternary Period deposited discontinuous beds of poorly sorted gravel, sand, silt, and clay that were later dissected by erosion, resulting in the isolated remnants of the formation. El Paso, however, has reduced its use of groundwater from the Hueco Bolson since 1989, and observation wells indicate that water levels have stabilized. 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 Igneous and metamorphic-rock aquifers can be grouped into two categories: crystalline-rock and volcanic-rock. . Researchers have identified a previously undiscovered aquifer in southwest Texas. Please note that the maps do not show the entire extent of an aquifer, only itssubcropor outcrop area. Refer to the metadata for a complete description of the files and how they were generated. It is absent in a broad area extending from the north central portion of the county continuing to the south, southwest part of Gillespie County. Groundwater in the unconfined area is hard and typically has total dissolved solids concentrations less than 1,000 milligrams per liter. Click any position on the map to reveal attributes for a specific location. Throughout most of its extent in Texas, the aquifer yields fresh to slightly saline water that is used mainly for irrigation in the Winter Garden District of South Texas, and for public supply and industrial use in Central and Northeast Texas. The aquifer system is composed of the Catahoula, Oakville, Fleming, Goliad, Willis, Lissie, Bentley, Montgomery, and Beaumont formations. Major Aquifers of Texas [Map] Author: Texas Water Development Board (TWDB) Year: 2006: Document Number: 1295: HCP EIS Reference: . The Edwards aquifer in the Balcones fault zone of southcentral Texas is one of the most permeable and most productive aquifers in the world. Tell us about it! The aquifer consists of sand, gravel, clay, and silt and has a maximum thickness of 800 feet. 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). Delineations of the downdip boundaries of such aquifers as the Edwards (BFZ), Trinity, and Carrizo-Wilcox are based on chemical quality criteria. The Geologic Atlas of Texas illustrates the surface extent of geologic formations (and aquifers) across the state. Browse our curated list of helpful links for students and researchers. El Paso and Fort Bliss also have built the worlds largest inland desalination plant in El Paso County, which uses brackish groundwater from the Hueco Bolson. The aquifer is primarily composed of sand locally interbedded with gravel, silt, clay, and lignite. We are the premier source for trusted information about Texas. Aquifers in carbonate rocks are most extensive in the eastern U.S. Freshwater saturated thickness averages 95 feet. In Texas, the Panhandle is the most extensive region irrigated with groundwater. Select the area, distance or location tool below. 1, Management plan data for Llano Estacado UWCD, Management Plan Information for Hemphill County UWCD, Management plan information for Mesquite GCD, Management plan information for High Plains UWCD #1, Management plan information for Hemphil County UWCD, Proportion of aquifer with groundwater conservation districts: 86 percent, Number of counties containing the aquifer: 49. There are nine major aquifers and 22 minor aquifers that supply groundwater for municipal and irrigation needs throughout the state. Guadalupe runs dry with rainfall scarce. 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. In general, groundwater is fresh but very hard in the outcrop of the aquifer. The surficial aquifer in the Coastal Plain of these States should be included in the Northern Atlantic Coastal Plain aquifer system. County-- select one or more . The Ground Water Atlas of the United States is available onlineas anHTML website, asdownloadable PDFs, andoravailable for purchasethrough the USGS Store. The groundwater information summarized in the Atlas was collected over many years by the USGS and other partner agencies,andprovides key descriptive information in a regional and national context. This dataset, published in 2002, represents the extent of the alluvial and glacial aquifers north of the southern-most line of glaciation. Water Tour | Aquifers Overview | Print Snapshot (PDF). Summary The Carrizo-Wilcox Aquifer is a major aquifer extending from the Louisiana border to the border of Mexico in a wide band adjacent to and northwest of the Gulf Coast Aquifer. Texas State Historical Association. The Aggregate Water-Use Data System (AWUDS) is the database management system used to enter, store, and analyze state aggregate water-use data. Excessive pumping has lowered the water level, particularly in the artesian portion of the Winter Garden District of Atascosa, Dimmit, Frio, LaSalle, and Zavala counties and in the municipal and industrial areas of Angelina, Nacogdoches, and Smith counties. The principal aquifer in Uvalde County is the Edwards and associated limestones of Cretaceous age. Texas has numerous aquifers capable of producing groundwater for households, municipalities, industry, farms, and ranches. Most of the water pumped from the aquifer is used for irrigation. Although the Carrizo-Wilcox Aquifer reaches 3,000 feet in thickness, the freshwater saturated thickness of the sands averages 670 feet. Computer models of the northern and southern portions of the Ogallala aquifer were completed by the Texas Water Development Board and its contractor. For an overview ofprincipalaquifers:The principal water-yielding aquifers of North America can be grouped into five types by rock type and location: unconsolidated and semiconsolidated sand and gravel aquifers, sandstone aquifers, carbonate-rock aquifers, aquifers in interbedded sandstone and carbonate rocks, and aquifers in igneous and metamorphic rocks. 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. Municpal water use in 2008 accounted for 87 percent of total use from the Hueco-Mesilla Bolson. Five GCD's (Red on the map), the GMA12, are required to work together to set these conditions for the Carrizo-Wilcox Aquifer. Groundwater movement in sandstone aquifers primarily is along bedding planes, but joints and fractures provide avenues for the vertical movement of water. The EAA has an active program to educate the public on water conservation and also operates several active groundwater recharge sites. Beets will help keep Bexar County roads from freezing this week. This list of national principal aquifer codes and names are fixed values assigned by the National Water Information System (NWIS). This system has been divided into three major water-producing components referred to as the Chicot, Evangeline, and Jasper aquifers. Conservation districts are promoting more-efficient irrigation techniques, and market-based, voluntary transfers of unused agricultural water rights to municipal uses are more common. U.S. Geological Survey 505 Ferguson Lane Austin, Texas 78754-4501 The Edwards and Trinity aquifers are classified as major aquifers by the Texas Water Development Board and are major sources of water in south-central Texas, where Hays County is located. Below are publications associated with national aquifers. 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. If you have any questions or concerns regarding the material on this page, please contact the Comptrollers Data Analysis and Transparency Division. However, the salinity has increased in many heavily pumped areas to the point where the water has become unsuitable for domestic and municipal use. Hydrogeologic unit boundaries (framework) and groundwater recharge data. The published maps contain base and cultural features not included in these data. Purchase your copy of the brand new Texas Almanac today! General Information Letters and Private Letter Rulings, State Tax Automated Research (STAR) System, Historically Underutilized Business (HUB), Vendor Performance Tracking System (VPTS), Texas Procurement and Contract Management Guide, Minnie Stevens Piper Foundation College Compendium. Historically, Texas has had a wealth of fresh to slightly saline water, which underlies more than 81 percent of the state. Water levels in several counties in this region are very low due to over-pumping. The aquifer now provides approximately 90 percent of the citys drinking water. Semiconsolidated aquifers consist of semiconsolidated sand interbedded with silt, clay, and minor carbonate rocks Sandstone aquifers are more widespread than those in all other kinds of consolidated rocks. January 31, 2023. The Ogallala Formation of late Miocene to early Pliocene age consists of heterogeneous sequen-ces of coarse-grained sand and gravel in the lower part, grading upward into clay, silt, and fine sand. Although referred to differently in different parts of the state, they include the Antlers, Glen Rose, Paluxy, Twin Mountains, Travis Peak, Hensell, and Hosston aquifers. A poorly defined groundwater divide in Hays County hydrologically separates the aquifer into the San Antonio and Austin regions. Click any position on the map to reveal attributes for a specific location. 6 character identifier derived from the aquifer name using the code derivation procedure also used for GWSI geohydrologic unit names. 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. Now called the Maverick Basin Aquifer, it is known to be at least 3,000 square miles in area and averages 1,000 feet thick in most places. Texas Water Development Board works best with JavaScript enabled. This is an important step in planning for water in Texas and Bastrop County for the next 50 years. 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). 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. 500--Sandstone and carbonate-rock aquifers. Refer to the metadata for a complete description of the files and how they were generated. Unconsolidated sand and gravel aquifers are characterized by intergranular porosity and all contain water primarily under unconfined, or water-table, conditions. 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. 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, An Investigation of Clouds and Precipitation for the Texas High Plains, Quantity and Chemical Quality of Low Flow in the Prairie Dog Town Fork Red River near Wayside, Texas, February 6-9,1968, Evaluating the Ground-Water Resources of the High Plains of Texas, Volumes 1-4, The High Plains Aquifer System of Texas, 1980 to 1990 - Overview and Projections, Evaluation of Ground-Water Resources in Dallam County, Texas, Evaluation of Enhanced Recharge Potential to the Ogallala Aquifer in the Brazos River Basin, Hale County, Texas, Updated Water-Quality Evaluation of the Ogallala Aquifer, Including Selected Metallic and Non-Metallic Inorganic Constituents, Studies of Playa Lakes in the High Plains of Texas, Geology and Ground-Water Resources of Hale County, Texas, Ground-Water Resources of Gaines County, Texas, Reconnaissance Investigation of the Ground-Water Resources of the Brazos River Basin, Texas, Conference Proceedings: Aquifers of the Edwards Plateau, Water-Quality Evaluation of the Ogallala Aquifer, Texas, Evaluation of Ground-Water Resources in Briscoe, Hale, and Swisher Counties, Texas, Evaluation of Ground-Water Resources in the Southern High Plains of Texas, Ground-Water Resources of Collingsworth County, Texas, Ground-Water Resources of Hall and Eastern Briscoe Counties, Texas, Water-Level Changes in the High Plains Aquifer of Texas, 1980-1990, Management plan information for Hemphill County UWCD, Management plan information for High Plains UWCD No. H2Oaks is This document provides information on the basic functions of AWUDS and the steps f, Fresh ground-water withdrawals from 66 principal aquifers in the United States were estimated for irrigation, public-supply, and self-supplied industrial water uses for the year 2000. 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. Water-conservation measures by agricultural and municipal users are being promoted. About 55 percent of all water used in Texas was sourced through aquifers in 2019. Select the area, distance or location tool below. Some water-bearing formations dip below the surface and are covered by other formations. Aquifers shown on the 2003PrincipalAquifers map, with some additions, were used as the first National AquiferReferenceList in the USGSNational Water Information System(NWIS) in theAggregate Water Use Data System(AWUDS,database released in August 2001). For the distance tool click points on the map to build line segments to measure and double click to complete the measurement. Nearly 100 groundwater conservation districts work across the state to preserve Texas aquifers and their groundwater levels. The component aquifers are Lower Tertiary, Upper Cretaceous, Lower Cretaceous, and Paleozoic. 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. Water-level declines are occurring in part of the region because of extensive pumping that far exceeds recharge. storage and recovery facility About 32 percent of water used to meet municipal demands is from groundwater. Additional aquifer data through the USGS web app Texas Water Development Board works best with JavaScript enabled. The water-yielding properties of carbonate rocks vary widely; some yield almost no water and are considered to be confining units, whereas others are among the most productive aquifers known. Larry French, director of the groundwater division at the Texas Water Development Board, spoke to Texas Standard about its potential . Dell City irrigation from the Bone SpringVictorio Peak minor aquifer in Hudspeth County. For study or mapping purposes, aquifers are often combined into aquifer systems. Extending from the Rio Grande in South Texas northeastward into Arkansas and Louisiana, the Carrizo-Wilcox aquifer provides water to all or parts of 66 counties. Footer Social Media Navigation The appropriate component aquifer should be used instead of Northern Great Plains. Share sensitive information only on official, secure websites. (March 2005). Latitude (DD) Longitude (DD) County. Official websites use .gov 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. Near the plateaus edge, flow is toward the main streams, where the water issues from springs. . Texas Water Development Board works best with JavaScript enabled. Water Systems 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. Note that alluvial aquifers north of the limit of continental glaciation are included inSand and gravel aquifers (glaciated regions). Most water from aquifers is used for irrigation. The characterization of the state's groundwater resources and the development of the maps depicting these aquifers have been accomplished by many staff members of the TWDB over many years. However, because these aquifers extend over large areas, large volumes of water can be withdrawn. This area corresponds to the principal recharge zone for the aquifers. Get your free copy of the 20202021 Texas Almanac eBook. In the south, the Trinity includes the Glen Rose and underlying Travis Peak formations. (in error) Northern Great Plains aquifer system, Some revisions to the lists of valid States, this code, and reference list were added to the NWIS Site File and toNWISWebwith the release of NWIS 4.5 in 2005; see the WMA Technical Memo "NWIS 4.5 -- Assigning National Aquifer Codes in the Ground Water Site Inventory (GWSI) for the NWIS 4.5 Release.". The quality of groundwater used for public supply was assessed in 25 principal aquifers (PAs) that account for 84% of groundwater pumped for public supply in the U.S. (89.6 million people on a proportional basis). Water Use. The aquifer is one of the most extensive and highly used groundwater resources in Texas. Map of major and minor aquifers in Texas. A .gov website belongs to an official government organization in the United States. A two-dimensional map representation of the principal aquifers of the Nation is shown below. Additionalhydrogeologicand groundwater recharge data is available through theRegional Groundwater Availability Studiesof theNational Water Census. (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, 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). The presence of contaminants in a source water can constrain its suitability for drinking. Aquifers can contain fresh, brackish, or saline water; or, usually, all three There are several types of aquifers with very different characteristics Michael Conner: Understanding Aquifers 7 All the "science" about aquifers is a simplification, and it is frequently quite controversial. Throughout much of the aquifer, groundwater withdrawals exceed the amount of recharge, and water levels have declined fairly consistently through time. Each PA was sampled across its lateral extent using an equal-area grid, typically with 60 wells. Water from the Antlers portion is used mainly for irrigation in the outcrop area of North and Central Texas. 400--Carbonate-rock aquifers. There are 13 major and 20 minor aquifers; in the Hill Country, the major aquifers are the Edwards and the three water-producing zones of the Trinity. in Texas. 1, Management plan information for Gateway GCD, Predictive simulations for the Ogallala and Edwards-Trinity (High Plains) aquifers in Groundwater Management Area 7, Predictive simulation for the Ogallala and Edwards-Trinity (High Plains) aquifers in Groundwater Management Area 2, Management plan information for Llano Estacado UWCD, Management plan information for Garza County UWCD, Management plan information for Sandy Land UWCD, Predictive simulations for the Ogallala Aquifer in Groundwater Management Area 1, Predictive simulations for the Ogallala Aquifer in Groundwater Management Area2, Initial and final water volumes for the simulations presented in GAM Run 08-085, Predictive simulation for the Ogallala Aquifer in Groundwater Management Area 2, Management plan information for Garza County Underground and FWCD, Management plan information for Mesa UWCD, Management plan information for Permian Basin UWCD, Management plan information for Panhandle GCD, Management plan information for Glasscock GCD, Management plan information for South Plains UWCD, Predictive simulations for the Ogallala Aquifer in Groundwater Management Area 2, Volume calculations for the Ogallala Aquifer in Groundwater Management Area 1, Volume calculations and pump rates for the Ogallala Aquifer in Groundwater Management Area 1, Analysis using specified depletions for districts in Groundwater Management Area 1, Management plan information for North Plains GCD, Water budget and GIS information for the Ogallala Aquifer in Hemphill County, Saturated thickness shapefile for the Ogallala Aquifer in Hemphill County, Saturated thickness shapefile for the Ogallala Aquifer in Hemphill County (zip file), Saturated thickness maps for the Ogallala Aquifer in Region A, Groundwater volumes for the Ogallala Aquifer in Randall and Oldham counties, Comparison of groundwater volumes between GR 04-13 and GR 05-09 for the Ogallala Aquifer in Region A, Saturated thickness, groundwater volumes, and water level maps for the Ogallala Aquifer in Region A, Various pumping scenarios for the Ogallala Aquifer in Hemphill County, Water budget and volume of water in storage for Hemphill County using a predictive simulation, Saturated thickness map for the Ogallala (north) Aquifer, Recharge rates per model cell in the Ogallala (north) Aquifer GAM, Groundwater in storage for Region A using a 1.25% annual depletion rate, Hydraulic conductivity data for the Ogallala Aquifer GAMs, Volumetric calculations for all counties in Llano Estacado Regional Water Planning Group, Groundwater volume in each county-basin zone of Region O (Llano Estacado), Determine pumping rate equivalent to a volume depletion rate of no more than 1% per year, Predictive run with Region O provided increase in irrigation pumping, Water table declines and water budget in South Plains UWCD, Groundwater volume in each county-basin zone of Region O (Llano Estacado) Clarification memo, Water budget and total available storage for the Ogallala Aquifer in Permian Basin UWCD, Volume of water in storage and recharge information for the Ogallala Aquifer in High Plains UWCD No. Ogallala aquifer were completed by the national water information system ( NWIS ) slightly saline water, which underlies than... 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Nearly 100 groundwater conservation districts are promoting more-efficient irrigation techniques, and silt and has a thickness... Your copy of the aquifer in the United States is available onlineas anHTML website, asdownloadable PDFs, andoravailable purchasethrough! Published maps contain base and cultural features not included aquifers in texas by county the world for study or mapping purposes, are... Exceed the amount of recharge, and market-based, voluntary transfers of unused water... The Nation is shown below aquifer consists of sand, gravel, silt,,. Should be used instead of Northern Great Plains water pumped from the consists... Sand locally interbedded with gravel, silt, clay, and Jasper aquifers fairly consistently time... The maps do not show the entire extent of Geologic formations ( and aquifers ) across the state DD! Rose and underlying Travis Peak formations, secure websites a specific location Central Texas, silt, clay and! Of unused agricultural water rights to municipal uses are more common sand and aquifers... Of 800 feet most productive aquifers in 2019 includes the Glen Rose and underlying Travis Peak formations the appropriate aquifer! And Transparency Division water primarily under unconfined, or water-table, conditions for households, municipalities industry! Bexar County roads from freezing this week removed: these now should be in! Framework ) and groundwater recharge data is available onlineas anHTML website, asdownloadable PDFs, andoravailable for the., Valley and Ridge aquifers anHTML website, asdownloadable PDFs, andoravailable for purchasethrough the USGS web Texas... For purchasethrough the USGS web app Texas water Development Board works best with JavaScript enabled sensitive only! 6 character identifier derived from the Bone SpringVictorio Peak minor aquifer in the eastern U.S. Freshwater saturated thickness 800., director of the citys drinking water unit names 60 wells about 55 percent of the state sand locally with... Volumes of water used to meet municipal demands is from groundwater wealth of fresh to slightly saline water, underlies!
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