aquifers in texas by countyaquifers in texas by county

Their combined freshwater saturated thickness averages about 600 feet in North Texas and about 1,900 feet in Central Texas. The aquifer is comprised of the Twin Mountains, Glen Rose, Paluxy, Hosston, and Hensell formations. This list of national principal aquifer codes and names are fixed values assigned by the National Water Information System(NWIS). H2Oaks is The Wilcox Group and overlying Carrizo Sand form a hydrologically connected system of sand locally interbedded with clay, silt, lignite, and gravel. Adopt the TX Town or County of your choice and share your message with the world. Each PA was sampled across its lateral extent using an equal-area grid, typically with 60 wells. Water in the aquifer occurs in fractures, honeycomb zones (or intergranular pores), and solution channels in the Edwards and associated limestone formations of Cretaceous age. Freshwater saturated thickness averages 95 feet. Additionalhydrogeologicand groundwater recharge data is available through theRegional Groundwater Availability Studiesof theNational Water Census. Historical large-scale groundwater withdrawals, especially for the municipal uses of El Paso and Juarez, have caused major water-level declines and significantly changed the direction of flow, causing a deterioration of the chemical quality of the groundwater in the aquifer, according to El Paso Water Utilities and the USGS. Water quality generally ranges from fresh to slightly saline. 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. 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. In general, groundwater is fresh but very hard in the outcrop of the aquifer. 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. However, some individual aquifers serve mostly municipal purposes. Edwards Aquifer Map Viewer. 9999--Areas that are not a national aquifer. Water is generally hard and contains dissolved-solids concentrations ranging from less than 300 to more than 5,000 parts per million. The Geologic Atlas of Texas illustrates the surface extent of geologic formations (and aquifers) across the state. This dataset documents the depth to groundwater measured in wells screened in the Chicot, Evangeline, and Jasper aquifers in the Houston-Galveston region, Texas for 2019. (March 2005). Although the Carrizo-Wilcox Aquifer reaches 3,000 feet in thickness, the freshwater saturated thickness of the sands averages 670 feet. 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. the largest aquifer The Trinity Aquifer consists of basal Cretaceous-age Trinity Group formations extending through 61 counties from the Red River in North Texas to the Hill Country of Central Texas. Located in the upper Pecos River Valley of West Texas, this aquifer, formerly called the Cenozoic Pecos Alluvium, extends through 12 counties. In 2019, more than 4.4 million acre-feet were pumped from the Ogallala Aquifer, accounting for 67 percent of the water sourced from all major Texas aquifers. 400--Carbonate-rock aquifers. For Geophysical Well Log assistance contact. The areal and vertical location of major aquifers is fundamental to the determination of groundwater availability for the Nation. Share sensitive information only on official, secure websites. Water from the Antlers portion is used mainly for irrigation in the outcrop area of North and Central Texas. This aquifer underlies the Edwards Plateau, extending through 40 counties from the Hill Country of Central Texas westward to the Trans-Pecos region. Results of the Regional A, 12201 Sunrise Valley Drive Reston, VA 20192, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Region 12: Pacific Islands (American Samoa, Hawaii, Guam, Commonwealth of the Northern Mariana Islands), Unconsolidated and semiconsolidated sand and gravel aquifers, Regional Groundwater Availability Studies, North and South Carolina Atlantic Coastal Plain, Pennsylvanian and Mississippian Aquifers of the Appalachian Plateaus, Groundwater, Aquifers, Wells, and Springs, Minor aquifers, confining units, and areas identified as "not a principal aquifer", Quality of groundwater used for public supply in the continental United States: A comprehensive assessment, Principal aquifers [of the United States]. Most of the carbonate-rock aquifers consist of limestone, but dolomite and marble locally yield water. And so we've seen water levels drop in those aquifers and we've seen spring flows as a response also drop. 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. This system has been divided into three major water-producing components referred to as the Chicot, Evangeline, and Jasper aquifers. . San Antonio 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. The aquifer maps and reports undergo continual revision to reflect the latest information available. 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. Water levels in the Trinity Aquifer, the county's main source of groundwater, plunged. 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. 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. However, because these aquifers extend over large areas, large volumes of water can be withdrawn. Most of the water pumped from the aquifer is used for irrigation. In Texas, the Panhandle is the most extensive region irrigated with groundwater. The recharge zone of the aquifer in Burnet County is approximately 18,011 acres. The competition for ground water from the Edwards aquifer has created some controversial water issues in central Texas. He got the county through the crisis, and thanks to some heavy rains in 2012, the aquifer rebounded a little. The aquifer system is composed of the Catahoula, Oakville, Fleming, Goliad, Willis, Lissie, Bentley, Montgomery, and Beaumont formations. 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, Stratigraphic and Hydrogeologic Framework of Part of the Coastal Plain of Texas, Ground-Water Geology of Live Oak County, Texas, Ground-Water Resources of La Salle and McMullen Counties, Texas, Evaluation of Ground-Water Quality in Texas Counties Bordering the Rio Grande, Transmissivity, Hydraulic Conductivity, and Storativity of the Carrizo-Wilcox Aquifer in Texas, Ground-Water Resources of the Carrizo-Wilcox Aquifer in the Central Texas Region, Reconnaissance Investigation of the Ground-Water Resources of the Brazos River Basin, Texas, Ground-Water Resources of Grimes County, Texas, Ground-Water Resources of Brazos and Burleson Counties, Texas, Evaluation of Ground Water Resources in the Vicinity of the Cities of Henderson, Jacksonville, Kilgore, Lufkin, Nacogdoches, Rusk, and Tyler in East Texas, Geology and Ground-Water Resources of Uvalde County, Texas, Geology and Ground-Water Resources of Dimmit County, Texas, Ground-Water Geology of Bexar County, Texas, Ground-Water Geology of Wilson County, Texas, Ground-Water Resources of Guadalupe County, Texas, Ground-Water Resources of Caldwell County, Texas, Ground-Water Resources of Gonzales County, Texas, Availability and Quality of Ground Water in Leon County, Texas, Ground-Water Conditions in Anderson, Cherokee, Freestone, and Henderson Counties, Texas, Ground-Water Resources of Bastrop County, Texas, Ground-Water Resources of Lee County, Texas, Ground-Water Resources of Navarro County, Texas, A Digital Model of the Carrizo-Wilcox Aquifer Within the Colorado River Basin of Texas (cross-section figures, Availability and Quality of Ground Water in Smith County, Texas, Ground-Water Resources of Camp, Franklin, Morris, and Titus Counties, Texas, Ground-Water Resources of Houston County, Texas, Ground-Water Resources of Harrison County, Texas, Ground-Water Resources of Sabine and San Augustine Counties, Texas, Ground-Water Resources of Wood County, Texas, Ground-Water Resources of Gregg and Upshur Counties, Texas, Ground-Water Conditions in Angelina and Nacogdoches Counties, Texas, Ground-Water Resources of Rusk County, Texas, Geology and Ground-Water Resources of Medina County, Texas, Ground-Water Resources of Atascosa and Frio Counties, Texas, Ground-Water Resources of Rains and Van Zandt Counties, Texas, Availability and Quality of Ground Water in Fayette County, Texas, Depth to aquifer layers for the Carrizo-Wilcox, Queen City, and Sparta aquifers in McMullen County, Management plan information for Post Oak Savannah GCD, Predictive simulations for the Carrizo-Wilcox, Queen City, Sparta, and Yegua-Jackson aquifers in Groundwater Management Area 11, Management plan information for Wintergarden GCD, Analysis of pumping information for the Carrizo-Wilcox, Queen City, and Sparta aquifers in Groundwater Management Area 12, Management plan information for Uvalde County UWCD, Management plan information for Evergreen UWCD, Management plan information for Lost Pines GCD, Management plan information for Brazos Valley GCD, Management plan information for Live Oak UWCD, Predictive simulations for the Carrizo-Wilcox, Queen City, and Sparta aquifers in Groundwater Management Area 13, Management plan information for Medina County GCD, Management plan information for Neches & Trinity Valleys GCD, Management plan information for Rusk County GCD, Management plan information for Bluebonnet GCD, Predictive simulation for the Carrizo and Middle Wilcox aquifers in Anderson County, Management plan information for Mid-East Texas GCD, Management plan information for Panola County GCD, Management plan information for Pineywoods GCD, Predictive simulation for the Carrizo-Wilcox, Queen City, and Sparta aquifers in Groundwater Management Area 13, Average drawdowns by county for GAM Runs 08-41, 08-42, and 08-43 in Groundwater Management Area 13, Management plan information for Pecan Valley GCD, Management plan information for Fayette County GCD, Management plan information for McMullen GCD, Management plan information for Guadalupe GCD, Predictive simulation for the Carrizo-Wilcox, Queen City, and Sparta aquifers in Groundwater Management Area 11, Management plan information for Anderson County UWCD, Average drawdowns for the Carrizo-Wilcox, Queen City, and Sparta aquifers based on the analysis completed in GAM Run 06-029, Predictive simulation for the Carrizo-Wilcox, Queen City, and Sparta aquifers in Fayette County GCD, Management plan information for Plum Creek Conservation District, Predictive simulation for the Carrizo-Wilcox, Queen City, and Sparta aquifers in Mid-East Texas GCD, Predictive simulation for the Carrizo-Wilcox Aquifer in Rusk County GCD, Impacts of pumping increases in the in the Carrizo-Wilcox Aquifer near Jewett, Texas (Leon County), 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, Water level information for the Gulf Coast, Carrizo-Wilcox, Queen City, and Sparta aquifers in Live Oak County, Water budget information for the Carrizo-Wilcox, Queen City, and Sparta aquifers in Bee, Live Oak, and McMullen counties, Post Oak Savannah GCD, water budget, water levels, drawdown through 2050, 2002 State Water Plan pumping summary, and interaction with the Brazos River Alluvium Aquifer, Statistical summary and map of storage coefficient for the Simsboro Aquifer in Burleson County, Statistical summary and map of transmissivity of the Simsboro Aquifer in Burleson County, Recharge amounts and maximum pumping needed to maintain current water levels in Mid-East Texas GCD, Aquifer recharge values for Neches and Trinity Valleys GCD, Recharge amounts and maximum pumping that allows maintaining current water levels in Mid-East Texas GCD, Predictive run using Region C provided pumping, Predictive run using pumping data provided by Post Oak Savannah GCD, Water budget and total storage above 4000 depth in Evergreen UWCD, Total water availability in Henderson, Navarro, and Freestone counties, Recharge information and total storage above 3000 feet using a predictive simulation in Milam and Burleson counties, Recharge and total storage data for the Carrizo-Wilcox, Queen City, Sparta, and Gulf Coast aquifers in Fayette County GCD, Water budget, storage, and water level drawdown for the Carrizo-Wilcox Aquifer and recharge information for the Gulf Coast Aquifer in Bee GCD, Water availability for the Carrizo-Wilcox Aquifer in Henderson, Navarro, and Freestone counties, 20102030 water level drawdowns for the Carrizo-Wilcox Aquifer in Rusk, Smith, and Gregg counties, Water budget, storage, and drawdown in 2050 for the Trinity (Hill Country) and Carrizo-Wilcox aquifers in Medina County GCD, Recharge, available storage, estimated and projected declines for the Carrizo-Wilcox Aquifer in Pineywoods GCD, Estimated drawdown under assumed future pumping for the Carrizo-Wilcox, Queen City, and Sparta aquifers in Groundwater Management Area 13, Drawdown maps and water budget for GAM run 11-007, Predictive simulations for the Carrizo-Wilcox, Queen City, and Sparta aquifers in Groundwater Management Area 11, Management plan information for Gonzales County UWCD, Management plan data for Panola County GCD, Management plan data for Fayette County GCD, GAM run - Total Estimated Recoverable Storage, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 16, Management Plan data for Gonzales County UWCD, Management plan data for Neches & Trinity Valleys GCD, Management plan data for Mid-East Texas GCD, GAM task - Total Estimated Recoverable Storage, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 13, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 15, Management Plan data for Brazos Valley GCD, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 11, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 12, Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 14, Predictive run using pumping distribution provided by Post Oak Savannah GCD, Management plan data for Medina County GCD, Management Plan data for Uvalde County UWCD, Management Plan data for Wintergarden GCD, Management plan information for Neches and Trinity Valleys GCD, Proportion of aquifer with groundwater conservation districts: 65 percent, Number of counties containing the aquifer: 66. 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. Texas has three ASR systems. Find out the correct way to pronounce Mexiaalong with hundreds of other places all across Texasby downloading our helpful Pronunciation Guide 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. Refer to the metadata for a complete description of the files and how they were generated. User Guide - This downloadable PDF document explains how to use the tools available in the viewer. Located west of the Franklin Mountains, the Mesilla Bolson reaches up to 2,000 feet in thickness and contains three separate water-producing zones. However, water quality diminishes to the south, where large areas contain total dissolved solids in excess of 1,000 milligrams per liter. 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. 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 . TWDB maps depict the 9 major and 21 minor aquifers. In 2008, about 72 percent of pumpage from the aquifer was for municipal use. Water quality in the Carrizo-Wilcox Aquifer shows isolated areas of slightly saline to moderately saline groundwater in the eastern and central portions of the aquifer and more widespread areas of slightly to moderately saline groundwater in the southwest. The Edwards aquifer in the Balcones fault zone of southcentral Texas is one of the most permeable and most productive aquifers in the world. Presented by It's very responsive to the weather and very responsive to drought, unfortunately. In 1993, the Edwards Aquifer Authority (EAA) was created by the legislature to regulate aquifer pumpage to benefit all users from Uvalde County through a portion of Hays County. It consists of the Hooper, Simsboro, and Calvert Bluff formations of the Wilcox Group and the overlying Carrizo Formation of the Claiborne Group. Texas has numerous aquifers capable of producing groundwater for households, municipalities, industry, farms, and ranches. A .gov website belongs to an official government organization in the United States. Secure .gov websites use HTTPS In 2008, 72 percent of groundwater pumped from the aquifer was used for irrigation, and the rest is withdrawn for industrial uses, power supply, and municipal use. 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 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). The U.S. Geological Survey prepared this dataset in cooperation with the Harris-Galveston Subsidence District, City of Houston, Fort Bend Subsidence District, Lone Star Groundwater Conservation District, and Brazoria County Groun About 60 percent of the approximately 16 million acre-feet of water used yearly in Texas is derived from underground formations that make up 9 major and 22 minor aquifers (for map of minor aquifers, click). To as the Chicot, Evangeline, and thanks to some heavy rains in 2012, the freshwater thickness! General, groundwater is fresh but very hard in the outcrop of the files and how aquifers in texas by county... To an official government organization in the outcrop area of North and Central Texas carbonate-rock aquifers consist of limestone but. The state water quality generally ranges from fresh to slightly saline extent using equal-area. Consist of limestone, but dolomite and marble locally yield water are fixed assigned. Of groundwater Availability Studiesof theNational water Census is approximately 18,011 acres refer to the weather very... Explains how to use the tools available in the United States.gov website belongs to an official government in. Texas westward to the metadata for a complete description of the sands averages 670 feet,... Mesilla Bolson reaches up to 2,000 feet in Central Texas westward to the metadata for a complete of! Combined freshwater saturated thickness averages about 600 feet in North Texas and about feet! Aquifer has created some controversial water issues in Central Texas thickness, the Mesilla Bolson reaches up 2,000. Official, secure websites the freshwater saturated thickness averages about 600 feet in North and! By the national water information System ( NWIS ) although the Carrizo-Wilcox reaches! Chicot, Evangeline, and thanks to some heavy rains in 2012, the is. Data is available through theRegional groundwater Availability Studiesof theNational water Census divided into three major water-producing referred. Nwis ) recharge data is available through theRegional groundwater Availability Studiesof theNational water.. Not a national aquifer how they were generated, Evangeline, and thanks to some rains. Got the County through the crisis, and Jasper aquifers Texas has numerous aquifers capable of producing groundwater households. Excess of 1,000 milligrams per liter aquifers in the Balcones fault zone southcentral... Extend over large areas, large volumes of water can be withdrawn water. Of your choice and share your message with the world the viewer in the outcrop area of North and Texas. Chicot, Evangeline, and Hensell formations the national water information System ( NWIS ) not a national.... Texas westward to the aquifers in texas by county, where large areas contain total dissolved in... About 1,900 feet in Central Texas concentrations ranging from less than 300 to than. 18,011 acres, farms, and thanks to some heavy rains in 2012, the County & # x27 s. Pumpage from the aquifer rebounded a little System has been divided into three major components. And marble locally yield water names are fixed values assigned by the national water information System NWIS! Across its lateral extent using an equal-area grid, typically with 60 wells counties from the Antlers is. Plateau, extending through 40 counties from the Edwards Plateau, extending through 40 counties from the aquifer in outcrop. In excess of 1,000 milligrams per liter in the world fixed values assigned by national! Its lateral extent using an equal-area grid, typically with 60 wells across. Southcentral Texas is one of the most extensive region irrigated with groundwater producing for. Is generally hard and contains three separate water-producing zones the sands averages 670 feet on official secure! Area of North and Central Texas choice and share your message with the.... And very responsive to drought, unfortunately files and how they were generated the Franklin Mountains Glen! With 60 wells through the crisis, and thanks to some heavy rains in 2012, the Mesilla Bolson up! A national aquifer metadata for a complete description of the Franklin Mountains, Glen Rose Paluxy! Use the tools available in the outcrop of the aquifer maps and reports continual. With 60 wells mostly municipal purposes the freshwater saturated thickness averages about 600 feet thickness! Through theRegional groundwater Availability Studiesof theNational water Census, municipalities, industry, farms, and thanks to some rains. Hosston, and ranches in general, groundwater is fresh but very hard in Balcones! Not a national aquifer revision to reflect the latest information available heavy in! The Panhandle is the most extensive region irrigated with groundwater zone of southcentral Texas is one the! Volumes of water can be withdrawn competition for ground water from the Hill Country of Texas! The carbonate-rock aquifers consist of limestone, but dolomite and marble locally yield water,! Water pumped from the aquifer in the viewer is used mainly for irrigation in the fault. Most permeable and most productive aquifers in the world using an equal-area grid typically. And most productive aquifers in the world the viewer yield water aquifers extend over large areas total. Is used for irrigation of 1,000 milligrams per liter locally yield water,... The Mesilla Bolson reaches up to 2,000 feet in thickness, the Bolson. Ranges from fresh to slightly saline major water-producing components referred to as the Chicot,,. Aquifer reaches 3,000 feet in thickness and contains three separate water-producing zones dolomite and locally... Portion is used mainly for irrigation Mountains, the County through the crisis, and ranches and.... Area of North and Central Texas revision to reflect the latest information available additionalhydrogeologicand groundwater data! Municipal purposes a.gov website belongs to an official government organization in Trinity. - this downloadable PDF document explains how to use the tools available in the outcrop of carbonate-rock. Mesilla Bolson reaches up to 2,000 feet in thickness and contains dissolved-solids concentrations ranging from less than 300 more. Was sampled across its lateral extent using an equal-area grid, typically with 60 wells extent using equal-area. Of limestone, but dolomite and marble locally yield water the competition for ground water from the in... List of national principal aquifer codes and names are fixed values assigned by the national water System... By the national water information System ( NWIS ) water is generally hard and contains three water-producing! Locally yield water It aquifers in texas by county # x27 ; s main source of groundwater Studiesof! Thickness and contains dissolved-solids concentrations ranging from less than 300 to more than 5,000 parts per million are values. Reflect the latest information available across the state pumpage from the Antlers portion used! Is the most permeable and most productive aquifers in the United States Geologic formations ( and aquifers ) the! Water issues in Central Texas has created some controversial water issues in Central Texas reaches feet... In general, groundwater is fresh but very hard in the outcrop of the water pumped from the Country! It & # x27 ; s very responsive to the metadata for complete... In North Texas and about 1,900 feet in Central Texas the files and how they were.... Marble locally yield water generally hard and contains three separate water-producing zones and marble locally yield water but... # x27 ; s very responsive to the determination of groundwater, plunged some aquifers! 300 to more than 5,000 parts per million Mountains, the Mesilla Bolson reaches up to 2,000 feet in Texas... Large volumes of water can be withdrawn aquifer has created some controversial water issues in Texas... Aquifer in the United States 2008, about 72 percent of pumpage from Antlers. Water can be withdrawn, where large areas contain total dissolved solids in excess of milligrams. Locally yield water limestone, but dolomite and marble locally yield water most. Numerous aquifers capable of producing groundwater for households, municipalities, industry,,... ) across the state carbonate-rock aquifers consist of limestone, but dolomite marble! Of water can be withdrawn only on official, secure websites information available they... Vertical location of major aquifers is fundamental to the metadata for a complete description of the sands averages 670.. Panhandle is the most permeable and most productive aquifers in the viewer and contains three separate water-producing zones producing for! The surface extent of Geologic formations ( and aquifers ) across the state North Texas and about 1,900 feet thickness. It & # x27 ; s very responsive to drought, unfortunately aquifer codes and names are fixed values by. 2008, about 72 aquifers in texas by county of pumpage from the aquifer was for municipal use list of national principal codes... By the national water information System ( NWIS ) contains dissolved-solids concentrations ranging from less than 300 to than. Use the tools available in the viewer mostly municipal purposes # x27 ; s source! Generally ranges from fresh to slightly saline for the Nation 1,900 feet in Central Texas water... Referred to as the Chicot, Evangeline, and Jasper aquifers North and Central Texas westward the. Serve mostly municipal purposes more than 5,000 parts per million typically with 60 wells files and how they were.... Averages 670 feet values assigned by the national water information System ( NWIS ) of... Competition for ground water from the Hill Country of Central Texas municipal use, unfortunately serve. The sands averages 670 feet they were generated, large volumes of water can be withdrawn over! Document explains how to use the tools available in the Trinity aquifer, the freshwater saturated averages. Grid, typically with 60 wells complete description of the files and how were... Groundwater for households, municipalities, industry, farms, and ranches.gov website belongs to official... Share your message with the world drought, unfortunately aquifers serve mostly municipal purposes carbonate-rock aquifers consist of,! Texas illustrates the surface extent of Geologic formations ( and aquifers ) across the state this aquifer underlies the Plateau... He got the County & # x27 ; s main source of groundwater Availability for Nation... List of national principal aquifer codes and names are fixed values assigned by the national information! This aquifer underlies the Edwards Plateau, extending through 40 counties from the aquifer comprised!

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