Texas Department of Licensing and Regulation's (TDLR) Submitted Driller's Report Database. This database contains water well reports submitted to TDLR from February 2001 to present.

The Submitted Drillers Report (SDR) Database is populated from the online Texas Well Report Submission and Retrieval System (TWRSRS) which registered water-well drillers use to submit their required reports. This dataset contains pipe "|" delimited text files of all data tables from the Submitted Drillers Report (SDR) database, updated nightly.

The Texas Water Development Board (TWDB) Groundwater Database (GWDB) contains information on selected water wells, springs, oil/gas tests (that were originally intended to be or were converted to water wells), water levels, and water quality to gain representative information about aquifers in Texas to support water planning from a local to a more regional perspective. This is a scientific database, not a registry of every well drilled in the state.

Geospatial data about Texas SDRDB well locations. Export to CAD, GIS, PDF, CSV and access via API.

This dataset documents depth to groundwater measurements made from wells screened in the Chicot aquifer, Evangeline aquifer, Jasper aquifer, Burkeville confining unit, Catahoula confining unit, or a combination of these hydrogeologic units in the greater Houston area, Texas for 2024. The U.S. Geological Survey (USGS) 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 Groundwater Conservation District. This dataset was created to provide resource managers, public officials, researchers, and the public with ready access to information regarding depths to groundwater in the region. The data in this dataset were collected from December 2023 through March 2024 and, with the exception water-level data provided by private corporations and the calculated median values provided only herein, are stored in the USGS National Water Information System (NWIS), a publicly available, searchable, online database of water information (USGS, 2024).

This dataset contains monthly pumping rates for municipal and industrial (MnI) wells in Texas within the Rio Grande Transboundary Integrated Hydrologic Model (RGTIHM) that were not included in other pumping rate datasets. In RGTIHM, these wells are considered the Texas Water Development Board (TXWDB) group. Monthly pumping rates are presented in units of cubic feet per day for the period from March 1940 through December 2014.

An extensive archive containing more than 10,000 historical (1918–2020) geophysical logs collected in conjunction with studies done by various entities and more than 2,000 additional donated well and geophysical logs are stored in hard-copy at the Central Texas Branch of the Oklahoma-Texas Water Science Center (OTWSC) in Austin, Texas. This dataset addresses the need to preserve these records electronically by providing a scanned and indexed collection of 11,171 of these records. Data are provided as a comma-separated value (CSV) text file and a Microsoft Access database in ACCDB format containing detailed well header information for each record. Also included are zipped files containing the geophysical log scans in Portable Document Format (PDF).The original dataset was published in January 2024, and revised in September 2024. This revision incorporates 5,113 additional log scans and header information into the original dataset containing 6,058 logs scans and header information. ...

The Brackish Resources Aquifer Characterization System (BRACS) Database stores well and geology information to help characterize the brackish groundwater resources of Texas. This database contains all types of wells (not just brackish water wells) including those in fresh water zones with linked geophysical well logs, aquifer test information, lithology and stratigraphic picks. Website Link: https://www.twdb.texas.gov/innovativewater/bracs/projects/HB30_Gulf_Coast/index.asp

The High Plains aquifer extends from approximately 32 to 44 degrees north latitude and from 96 degrees 30 minutes to 106 degrees west longitude. The aquifer underlies about 175,000 square miles in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This digital data set contains water-level measurements from wells screened in the High Plains aquifer and measured in both predevelopment (about 1950) and for 2017. There were 2,928 wells measured in both predevelopment (about 1950) and 2017 as well as 63 wells located in New Mexico, which were measured in predevelopment and at least once between 2013 and 2016. These water-level measurements were used to map water-level changes, predevelopment (about 1950) to 2017. The map was reviewed for consistency with the relevant data at a scale of 1:1,000,000.

The Ogallala aquifer is contained in the Tertiary-age Ogallala Formation in the Texas Panhandle and is the primary water-bearing hydrogeologic unit of the High Plains aquifer system. The Ogallala aquifer is the primary source of water used for agricultural and municipal purposes in the Texas Panhandle. The Dockum aquifer is contained in the formations that compose the Triassic-age Dockum Group and serves as an additional source of water in the Texas Panhandle. Depth to groundwater measurements and water-quality samples were collected from 32 monitoring wells in the North Plains Groundwater Conservation District management area within the northern part of the Texas Panhandle as part of two synoptic sampling efforts, one during 2012–13 and the other during 2019–20. Groundwater-quality samples were collected for analysis of dissolved solids, major ions, nutrients, and trace elements. Selected organic compounds were analyzed in samples collected from a subset of 6 wells. Sample results for selected constituents were compared to drinking-water standards and between the two synoptic sampling times in an interpretative report. A previously published report by Baldys and others (2014) discusses the results from the 2012–13 sampling event.

In cooperation with the San Antonio Water System, continuous and discrete water-quality data were collected from groundwater wells completed in the Edwards aquifer, Texas, 2014-2015. Discrete measurements of nitrate were made by using a nitrate sensor. Precipitation data from two sites in the National Oceanic and Atmospheric Administration Global Historical Climatology Network are included in the dataset. The continuous monitoring data were collected using water quality sensors and include hourly measurements of nitrate, specific conductance, and water level in two wells. Discrete measurements of nitrate, specific conductance, and vertical flow rate were collected from one well site at different depths throughout the well bore.

Water Data for Texas is a product of the Texas Water Development Board (TWDB) Water Science Conservation Division and is made possible by the support of management and staff at TWDB. This project is part of our ongoing efforts to synthesize and communicate water-related data to scientists, policy makers and the public. As a convenience to the public, this website also retrieves and displays well data collected by the U.S. Geological Survey (USGS) and the Edwards Aquifer Authority (EAA). All data displayed for these wells are maintained by USGS and EAA respectively.

Groundwater-quality data and geophysical information for relatively deep wells (wells generally more than 300 feet deep) containing saline water (dissolved-solids concentrations greater than 2,000 milligrams per liter) are limited throughout the state of Texas. Information derived from geophysical well logs can be used to estimate groundwater salinity. Geophysical logs were collected in 2021 from 10 of the 12 wells completed in selected aquifers (Trinity, Edwards-Trinity (Plateau), Carrizo-Wilcox, Sparta, and Yegua-Jackson) in Texas.

The Transboundary Aquifer Assessment Act was established to systematically assess priority aquifers along the U.S.-Mexico international boundary. The priority aquifers that were specified include the Hueco-Mesilla Bolsons aquifer in Texas and New Mexico and its counterpart in Mexico, the Conejos-Medanos Aquifer system, and the Santa Cruz and San Pedro aquifers in Arizona (Texas Water Development Board, 2019). The Transboundary Aquifer Assessment Program (TAAP) was started in 2009 and is a collaborative effort between the U.S. Geological Survey, Arizona Water Resources Research Center, New Mexico Water Resources Research Institute, and the Texas Water Resources Institute (U.S. Geological Survey, 2018) to better understand these aquifers. More information about TAAP can be found at the TAAP project website: https://webapps.usgs.gov/taap/. This data release contains data from water-quality analyses of groundwater samples collected from production wells within the Hueco Bolson which is part of the Hueco-Mesilla Bolsons aquifer system. Sampling locations were determined in coordination with El Paso Water and the U.S. Army Air Defense Artillery Center to meet TAAP goals of understanding groundwater-quality data and providing useful information to decision makers. Groundwater samples were collected from 20 production wells operated by El Paso Water and Fort Bliss Water Services during August 29–September 23, 2016. These samples were analyzed for major ions, trace elements, nutrients, pesticides, carbon isotopes, strontium isotopes, hydrogen isotopes, and oxygen isotopes. Three additional Fort Bliss Water Services wells were sampled between May 31 and June 1, 2017. These samples were analyzed for major ions, trace elements, dissolved gasses, carbon isotopes, strontium isotopes, hydrogen isotopes, oxygen isotopes, boron isotopes, and uranium isotopes.

Texas Department of Licensing and Regulation's (TDLR) Submitted Driller's Report Database. This database contains plugged water well reports submitted to TDLR from February 2001 to present.Website Link: http://www.twdb.texas.gov/groundwater/data/drillersdb.asp

The availability of groundwater-quality data for relatively deep wells (wells generally more than 300 feet deep) containing saline water (dissolved-solids concentrations greater than 2,000 milligrams per liter) is limited throughout the state of Texas. Water-quality samples are important for calibrating estimates of groundwater salinity derived from geophysical well logs. Water-quality data collected in 2021 from four wells completed in selected aquifers (Trinity, Carrizo-Wilcox, and Yegua-Jackson) in Texas are included in this data release.

Water-resources data for the 2004 water year for Texas are presented in six volumes, and consist of records of stage, discharge, and water quality of streams and canals; stage, contents, and water-quality of lakes and reservoirs; and water levels and water quality of ground-water wells. Volume 2 contains records for water discharge at 54 gaging stations; stage only at 4 gaging stations; elevation at 17 lakes and reservoirs; content at 8 lakes and reservoirs; and water quality at 22 gaging stations. Also included are data for 2 partial-record stations comprised of 1 flood-hydrograph and 1 crest-stage station. Also included are lists of discontinued surface-water discharge or stage-only stations and discontinued surface-water-quality stations. Additional water data were collected at various sites, not part of the systematic data-collection program, and are published as miscellaneous measurements. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating Federal, State, and local agencies in Texas. Records for a few pertinent stations in the bordering States also are included.

Texas water wells within the Rio Grande River Basin. These layers contain Public Water Supply sites in the State of Texas. The locations were obtained by theWater Supply Division as recorded from various sources and built using the best existing location dataavailable from these sources. Although some location errors were found and corrected in the process,some errors still remain. As resources allow, TCEQ intends to improve the accuracy of these locations tomeet the standards set forth in the agency's Positional Data Policy. This layer was developed to supportthe TCEQ's Source Water Assessment and Protection Program (SWAP).

Groundwater samples were collected from domestic and public-supply wells in the Eagle Ford study area in 2015–16, in the Fayetteville study area in 2015, and in the Haynesville study area in 2014–15. One sample of produced water was collected from a gas well in the Haynesville Shale in Rusk County, Texas in 2010, and 5 samples of produced water were collected from oil and condensate wells in the Eagle Ford Shale in Gonzales and Lavaca Counties, Texas in 2015. Groundwater samples were analyzed for major ions, nutrients, and trace elements; methane, methane H and C isotopic compositions, and C1-C5 gas composition; H and O isotopic composition of water; noble gas concentrations and isotopic compositions; tritium, sulfur hexafluoride (SF6), and carbon-14 in dissolved inorganic carbon (DIC), and δ13C-DIC; and volatile organic compounds (VOCs). Water from hydrocarbon wells was analyzed for a subset of these constituents.

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