Unified Interior Regions

Region 6: Arkansas-Rio Grande-Texas-Gulf

Regions L2 Landing Page Tabs

Filter Total Items: 141
Date published: June 6, 2018
Status: Active

Texas Gulf Coast Groundwater and Land Subsidence Program

The Texas Gulf Coast Groundwater and Land Subsidence Program web application illustrates how groundwater, sediment compaction, and land-elevation change are related in the Houston-Galveston region in Texas. The new app was developed by the U.S. Geological Survey Texas Water Science Center and is available at https://txpub.usgs...

Date published: June 6, 2018
Status: Active

Water-Quality Monitoring of the Lake Houston Watershed

Real-time water-quality, streamflow and water height information for Lake Houston and the surrounding San Jacinto watershed are now available from a new web application from the U.S. Geological Survey, done in cooperation with the City of Houston.

Date published: May 29, 2018
Status: Active

Water Quality Monitoring at Offshore Artificial Reefs

USGS Texas Water Science Center scientists are collecting physical and chemical water properties at selected Texas artificial reefs to provide the initial foundation to establish the status and long-term trends in the environment and information essential for sound management decisions and long-term planning.

Contacts: Michael Lee
Date published: May 29, 2018
Status: Active

Edwards Aquifer Recharge Zone Surface-water and Groundwater Interaction

The effects of urbanization across the recharge zone in Bexar County and potential impact on the water quality in the Edwards aquifer is a topic of specific concern for the City of San Antonio. The USGS Texas Water Science Center is simultaneously collecting water-quality data from surface-water runoff sites and paired shallow groundwater wells within the recharge zone of the Edwards aquifer...

Date published: May 29, 2018
Status: Active

Surface-Water Monitoring in Small Western Texas Watersheds

The USGS Texas Water Science Center maintains a network of continuous record gages and crest-stage gages on small watersheds in Western Texas. Data collected from these gages provides the Texas Department of Transportation with valuable watershed rainfall and runoff information to support their hydrologic research program.

Contacts: Glenn Harwell
Date published: May 29, 2018
Status: Active

San Antonio River Sediment and Water Quality Monitoring in an Oil and Gas Production Area

During 2011-2013, baseline concentrations of many different water and streambed-sediment constituents were determined at Phase I sites upstream from, within, and downstream from the area of active oil and natural-gas production within the San Antonio River Basin.  With baseline conditions previously established, this study will provide current information that couples recent water and stream-...

Date published: May 29, 2018
Status: Active

Surface-water and Groundwater Interaction at Air Force Plant 4

The USGS Texas Water Science Center is monitoring sediment, surface-water, and groundwater properties at Air Force Plant 4.

Date published: May 29, 2018
Status: Active

Investigation of Preferential Groundwater Seepage in the Ellenburger – San Saba Aquifer Using Geoelectric Measurements

The USGS Texas Water Science Center (TXWSC) is completing a geophysical pilot study adjacent to Hamilton Creek in Burnet County, central Texas.  The pilot study is intended to test whether electrical geophysical methods can provide information regarding the locations of dissolution cavities and preferential groundwater flow within in the Ellenburger San-Saba aquifer.  Data from this study will...

Contacts: Scott Ikard
Date published: May 29, 2018
Status: Active

Nutrient and Sediment Variability in the Lower San Jacinto River

The San Jacinto River is the second largest inflow into Galveston Bay. The USGS Texas Water Science Center collects water-quality samples in the lower reaches of the San Jacinto River over a range of hydrologic conditions to improve our understanding of the variability of nutrient and sediment concentrations in freshwater inflows from the San Jacinto River into Galveston Bay. 

Contacts: Zulimar Lucena
Date published: May 29, 2018
Status: Active

Menard County Surface-Water Monitoring

The USGS operates and maintains a continuous discharge monitoring station on the Menard Irrigation Canal near Menard, Texas to assist water managers in balancing multiple water uses.

Contacts: Cary Carman
Date published: May 29, 2018
Status: Active

Lewisville Dam Seepage Monitoring

The USGS Texas Water Science Center is monitoring water surface elevation in monitoring wells and seepage losses from Lake Lewisville dam.

Date published: May 29, 2018
Status: Active

Hydrologic Monitoring of Medina and Diversion Lakes, San Antonio Area

In 2016, the U.S. Geological Survey (USGS), in cooperation with the San Antonio Water System, began a study to refine previously derived estimates of groundwater outflows from Medina and Diversion Lakes in south-central Texas near San Antonio.

Filter Total Items: 42
Date published: April 12, 2016

Orthoimagery Data

Orthoimagery data typically are high resolution aerial images that combine the visual attributes of an aerial photograph with the spatial accuracy and reliability of a planimetric map. The National Map offers public domain, 1-meter orthoimagery for the conterminous United States with many urban areas and other locations at 2-foot or finer resolution.

Date published: April 12, 2016

The National Map Small-Scale Collection

The National Map offers a collection of small-scale datasets, most of which are at 1:1,000,000. The National Map publishes two data collections at one million-scale: one for Global Map users and one for National Map users. In terms of vector geometry, the lines, points, and areas in these data collections are identical. The difference is in the attributes assigned to these features.

Date published: March 12, 2016

WaterWatch

WaterWatch is a U.S. Geological Survey (USGS) World Wide Web site that displays maps, graphs, and tables describing real-time, recent, and past streamflow conditions for the United States. The real-time information generally is updated on an hourly basis.

Date published: January 1, 2016

Oklahoma Climate Trends, 1895-2015

Precipiation and temperature trends for 1895-2015 for Oklahoma.

Date published: January 1, 2016

USGS National and Global Oil and Gas Assessment Project-Permian Basin Province, Midland Basin, Wolfcamp Shale Assessment Units

The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates...

Date published: April 24, 2014

Historic groundwater quality of in situ recovery (ISR) uranium mines, Texas

The historic groundwater geochemistry database of uranium in-situ recovery (ISR) mines in Texas was compiled from obscure public sources to make it readily available to the public and scientific researchers. This data is of interest because of current concerns about groundwater restoration following uranium ISR mining in aquifers throughout the U.S.

Filter Total Items: 1,599
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Year Published: 2019

Differentiating anthropogenic and natural sources of uranium by geochemical fingerprinting of groundwater at the Homestake Uranium Mill, Milan, New Mexico, USA

A multiparameter geochemical-isotopic fingerprinting approach was used to differentiate natural and anthropogenic signatures of uranium contamination near the Homestake uranium mill site (Site), near Milan, New Mexico, USA. The Site consists of two tailings piles from milling operations and groundwater contamination from these tailings have been...

Blake, Johanna; Harte, Philip; Becher, Kent

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Year Published: 2019

Capacity and area of Grand Lake O’ the Cherokees, northeastern Oklahoma, 2009

In February 2017, the Grand River Dam Authority filed to relicense the Pensacola Hydroelectric Project with the Federal Energy Regulatory Commission. The predominant feature of the Pensacola Hydroelectric Project is Pensacola Dam, which impounds Grand Lake O’ the Cherokees (locally called Grand Lake) in northeastern Oklahoma. Identification of...

Hunter, Shelby L.; Labriola, Laura G.
Hunter, S.L., and Labriola, L.G., 2019, Capacity and area of Grand Lake O’ the Cherokees, northeastern Oklahoma, 2009: U.S. Geological Survey Scientific Investigations Report 2019–5040, 18 p., https://doi.org/10.3133/sir20195040.

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Year Published: 2019

Water resources of Richland Parish, Louisiana

Information concerning the availability, use, and quality of water in Richland Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 41.73 million gallons per...

White, Vincent E.
White, V.E., 2019, Water resources of Richland Parish, Louisiana: U.S. Geological Survey Fact Sheet 2019–3005, 6 p., https://doi.org/10.3133/fs20193005.

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Year Published: 2019

Simulation of water availability in the Southeastern United States for historical and potential future climate and land-cover conditions

A study was conducted by the U.S. Geological Survey (USGS), in cooperation with the Gulf Coastal Plains and Ozarks Landscape Conservation Cooperative (GCPO LCC) and the Department of the Interior Southeast Climate Adaptation Science Center, to evaluate the hydrologic response of a daily time step hydrologic model to historical observations and...

LaFontaine, Jacob H.; Hart, Rheannon M.; Hay, Lauren E.; Farmer, William H.; Bock, Andy R.; Viger, Roland J.; Markstrom, Steven L.; Regan, R. Steven; Driscoll, Jessica M.
LaFontaine, J.H., Hart, R.M., Hay, L.E., Farmer, W.H., Bock, A.R., Viger, R.J., Markstrom, S.L., Regan, R.S., and Driscoll, J.M., 2019, Simulation of water availability in the Southeastern United States for historical and potential future climate and land-cover conditions: U.S. Geological Survey Scientific Investigations Report 2019–5039, 83 p., https://doi.org/10.3133/sir20195039.

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Year Published: 2019

Summary of climatic, geographic, geologic, and available hydrologic data and identification of data gaps for the Black Bear Creek watershed of the Pawnee Nation Tribal Jurisdictional Area, Oklahoma

The Pawnee Nation is compiling a comprehensive water-management plan for the Pawnee Nation Tribal Jurisdictional Area in north-central Oklahoma. One of the first steps needed in preparing such a plan is a summary and analysis of available hydrologic data and reports that have been published for the area. In phase I of a three-phase, watershed-...

Varonka, Matthew S.
Varonka, M.S., 2019, Summary of climatic, geographic, geologic, and available hydrologic data and identification of data gaps for the Black Bear Creek watershed of the Pawnee Nation Tribal Jurisdictional Area, Oklahoma: U.S. Geological Survey Scientific Investigations Report 2019–5043, 39 p., https://doi.org/10.3133/sir20195043.

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Year Published: 2019

Water resources of Tensas Parish, Louisiana

Information concerning the availability, use, and quality of water in Tensas Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, 38.01 million gallons...

White, Vincent E.
White, V.E., 2019, Water resources of Tensas Parish, Louisiana: U.S. Geological Survey Fact Sheet 2019–3004, 6 p., https://doi.org/10.3133/fs20193004.

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Year Published: 2019

Characterizing groundwater/surface-water interaction using hydrograph-separation techniques and groundwater-level data throughout the Mississippi Delta, USA

The Mississippi Delta, located in northwest Mississippi, is an area dense with industrial-level agriculture sustained by groundwater-dependent irrigation supplied by the Mississippi River Valley Alluvial aquifer (alluvial aquifer). The Delta provides agricultural commodities across the United States and around the world. Observed declines in...

Killian, Courtney D.; Asquith, William H.; Barlow, Jeannie R. B.; Bent, Gardner C.; Kress, Wade; Barlow, Paul M.; Schmitz, Darrel W.

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Year Published: 2019

Adjudicating groundwater: A judge’s guide to understanding groundwater and modeling

Dividing the Waters offers this groundwater science bench book that cannot be matched by any other scientific or judicial publication.  Adjudicating Groundwater combines the expertise and experience of academic scientists (UC Davis/Stanford), federal scientists (U.S. Geological Survey), and judicial officers to create a...

Brandt, Alf; Fienen, Michael N.; White, Jeremy; Harter, Thomas; Moran, Tara; Wildman, Eric

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Year Published: 2019

Preferential groundwater seepage in karst terrane inferred from geoelectric measurements

The Ellenburger–San Saba aquifer discharges spring flows into the overlying Hamilton Creek bed in Burnet County, central Texas. The aquifer is susceptible to contamination from surface‐water reservoirs because of the presence of dissolution cavities that are hydraulically connected to the reservoirs in some locations. There is concern that...

Ikard, Scott; Pease, Emily

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Year Published: 2018

Simulation of groundwater flow and analysis of projected water use for the Rush Springs aquifer, western Oklahoma

The U.S. Geological Survey, in cooperation with the Bureau of Reclamation and the Oklahoma Water Resources Board, (1) quantified the groundwater resources of the Rush Springs aquifer in western Oklahoma by developing a numerical groundwater-flow model, (2) evaluated the effects of estimated equal-proportionate-share (EPS) pumping rates on aquifer...

Ellis, John
Ellis, J.H., 2018, Simulation of groundwater flow and analysis of projected water use for the Rush Springs aquifer, western Oklahoma: U.S. Geological Survey Scientific Investigations Report 2018–5136, 156 p., https://doi.org/10.3133/sir20185136.

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Year Published: 2018

Land-cover changes associated with oil and natural-gas production and concentrations of selected constituents in surface-water and streambed-sediment samples collected upstream from and within an area of oil and natural-gas production, south Texas, 2008–17

The extensive development of oil and natural-gas resources in south Texas during the past 10 years has led to questions regarding possible environmental effects of processes associated with oil and natural-gas production, in particular the process of hydraulic fracturing, on water and other natural resources. Part of the lower San Antonio River...

Crow, Cassi L.; Opsahl, Stephen P.; Pedraza, Diana E.; Pease, Emily C.; Kushnereit, Ross K.
Crow, C.L., Opsahl, S.P., Pedraza, D.E., Pease, E.C., and Kushnereit, R.K., 2018, Land-cover changes associated with oil and natural-gas production and concentrations of selected constituents in surface-water and streambed-sediment samples collected upstream from and within an area of oil and natural-gas production, south Texas, 2008–17: U.S. Geological Survey Scientific Investigations Report 2018–5119, 52 p., https://doi.org/10.3133/sir20185119.

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Year Published: 2018

Geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers within Hays County, Texas

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. Detailed maps and descriptions of the geologic framework and hydrostratigraphic units (HSUs) of these karstic aquifers in Hays County are needed for water...

Clark, Allan K.; Pedraza, Diana E.; Morris, Robert R.
Clark, A.K., Pedraza, D.E., and Morris, R.R., 2018, Geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers within Hays County, Texas: U.S. Geological Survey Scientific Investigations Map 3418, 1 sheet, scale 1:24,000, pamphlet, https://doi.org/10.3133/sim3418.

Filter Total Items: 258
USGS scientist David Rodriguez records high water marks from storm surge near Corpus Christi, Texas. 
September 8, 2017

Recording high water marks after Harvey

USGS scientist David Rodriguez records high water marks from storm surge near Corpus Christi, Texas. 

USGS scientist David Rodriguez records high water marks from storm surge following Harvey near Corpus Christi, Texas. 
September 8, 2017

Recording high water marks following Harvey

USGS scientist David Rodriguez records high water marks from storm surge following Harvey near Corpus Christi, Texas. 

Pre- and post-Harvey photos for Sargent, Texas
September 5, 2017

Pre- and post-Harvey photos for Sargent, Texas

Location 4. Sand dunes along this stretch of coast in Sargent, Texas, were overwashed by large waves during the storm. Sand from the beach and dunes is covering the roadway behind the dunes and which may be impassable. The predicted probability of overwash in this area was 94%.

Satellite image showing the flooding in Texas from Hurricane Harvey.
September 5, 2017

Hurricane Harvey Flooding

Extensive flooding inundated the Gulf Coast of Texas after Hurricane Harvey made landfall as a Category 4 hurricane on August 25, 2017. Among the many waterways in southeastern Texas that exceeded flood stage was the Brazos River, which flows past Houston to its west and to the Gulf of Mexico at Freeport.

USGS scientist surveying high water marks from storm surge from Hurricane Harvey at Packery Channel near Corpus Christi, TX.
September 5, 2017

High Water Mark Surveying

USGS scientist Alec McDonald surveying high water marks from storm surge from Hurricane Harvey at Packery Channel near Corpus Christi, Texas.

USGS scientist Vidal Mendoza surveying high water marks from storm surge from Hurricane Harvey near Port Aransas, Texas.
September 5, 2017

Surveying High Water Marks following Harvey

USGS scientist Vidal Mendoza surveying high water marks from storm surge from Hurricane Harvey near Port Aransas, Texas.

Image shows USGS scientists planning their water quality work on a whiteboard
August 31, 2017

Water Quality Sampling Planning Following Hurricane Harvey

A peek into a USGS planning meeting to coordinate water-quality sampling efforts in response to Harvey. This sampling effort is part of the federal government’s broad efforts to ensure public health and to support the state, tribal, and local response to the storm

Image shows USGS scientists in PFDs taking water quality samples from Lake Houston
August 31, 2017

Water Quality Sampling on Lake Houston Following Hurricane Harvey

A USGS field crew takes water-quality samples on Lake Houston following Harvey.

Image shows a USGS scientist in a PFD servicing a water quality monitor on a lake
August 31, 2017

Water Quality Sampling on Lake Houston Following Hurricane Harvey

USGS scientist Lisa Ashmore services a water-quality monitor on Lake Houston. These instruments stayed afloat and collected data throughout the storm.

August 31, 2017

Image of the Week: Hurricane Harvey Inundates Gulf Coast

Hurricane Harvey made landfall on August 25th. Over the next few days, record rain totals had devastated the area.

At the USGS EROS Center, we study land change, operate the Landsat satellites, and maintain the longest, continuously acquired collection of images of the Earth's land surface.

USGS EROS Center (

USGS scientists Lisa Ashmore and Lee Bodkin collect water-quality samples on Lake Houston in response to Harvey.
August 31, 2017

Collecting Water Quality Samples following Harvey

USGS scientists Lisa Ashmore and Lee Bodkin collect water-quality samples on Lake Houston in response to the high flow conditions that resulted from Harvey. 

Image shows a USGS scientist in a PFD servicing a streamgage
August 31, 2017

Servicing a Streamgage at Addicks Reservoir following Hurricane Harvey

USGS scientist Jimmy Hopkins repairs a streamgage downstream of Addicks reservoir at Buffalo Bayou after flooding from Hurricane Harvey. This gauge is normally accessed on land from a platform on the side of a bridge.

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High Plains aquifer water-level changes, predevelopment to 2015
June 16, 2017

The U.S. Geological Survey has released a new report detailing changes of groundwater levels in the High Plains aquifer. The report presents water-level change data in the aquifer for two separate periods: from 1950 – the time prior to significant groundwater irrigation development – to 2015, and from 2013 to 2015.

Two men collecting groundwater samples at a public well in the middle of a grassy field in Texas
May 31, 2017

Decades or longer may be needed to fully assess the effects of unconventional oil and gas production on the quality of groundwater used for drinking water in Arkansas, Louisiana, and Texas

Image shows a map of U.S. states colored based on the value of their mineral industry
April 14, 2017

In 2016, these five states led the pack in mineral production, accounting for about one third of the total mineral production value for the entire country.

This image shows a damaged street sign and flood debris left behind by record flood waters of the Blanco River near Martindale,
April 10, 2017

The new “Water On-the-Go” mobile app gives the public easy access to current conditions in streams across Texas. This product was developed by the U.S. Geological Survey to help raise water awareness during both floods and normal conditions.

Photo of USGS streamgage measures flooding in the lower Trinity River
February 22, 2017

A better understanding of sediment and freshwater flow into Galveston Bay is now available from a new U.S. Geological Survey report, done in cooperation with the Texas Water Development Board, and the Galveston Bay Estuary Program.

USGS
February 17, 2017

Small variations in the density of the earth’s crust—undetectable to humans without sensitive instruments—influence where earthquakes may occur in the central United States. These new findings from the U.S. Geological Survey, published today in Nature Communications, may allow scientists to map where future seismicity in the center of the country is most likely.

USGS
February 8, 2017

A new JavaScript library, called GWIS (Graphing Water Information System), can create time-series plots of information measured at U.S. Geological Survey hydrologic data collection sites across the United States.

Photo of a young girl drinking water, which likely originated from groundwater sources. 
January 19, 2017

A regional assessment of untreated groundwater in the Coastal Lowlands aquifer system in the southeastern United States is now available from the U.S. Geological Survey.

Photo of two of the main spring discharge points of Comal springs.
December 7, 2016

A new U.S. Geological Survey website provides important information about streamflow in the Comal and San Marcos Rivers and springflow at Comal and San Marcos Springs. This website was developed in collaboration with the Edwards Aquifer Authority.

Filter Total Items: 102