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Oklahoma-Texas Water Science Center

Water information is fundamental to national and local economic well-being, protection of life and property, and effective management of water resources. USGS works with partners in Oklahoma and Texas to monitor, assess, conduct targeted research, and deliver information on a wide range of water resources including streamflow, groundwater, water quality, and water use and availability.

News

USGS Measures Flooding Across Texas

USGS Measures Flooding Across Texas

OTWSC Webinar, January 23 - Edwards Aquifer Recharge Zone Monitoring Project

OTWSC Webinar, January 23 - Edwards Aquifer Recharge Zone Monitoring Project

OTWSC Webinar, Wednesday, March 6th - Flood Decision Support Toolbox (FDST)

OTWSC Webinar, Wednesday, March 6th - Flood Decision Support Toolbox (FDST)

Publications

Computing discharge using the entropy-based probability concept Computing discharge using the entropy-based probability concept

This report describes the techniques and methods for computing the mean-channel velocity and discharge using the entropy-based probability concept (probability concept). The method is an alternative to or augments standard streamgaging methods adopted by the U.S. Geological Survey (USGS). Although sensor technology for measuring the mean velocity and discharge has advanced, standard...
Authors
John Fulton, Frank Engel, Jack R. Eggleston, Chao-Lin Chiu

Hydrogeologic framework and conceptual model of the Red River alluvial aquifer east of Lake Texoma, southeastern Oklahoma, 1980–2022 Hydrogeologic framework and conceptual model of the Red River alluvial aquifer east of Lake Texoma, southeastern Oklahoma, 1980–2022

The 1973 Oklahoma Groundwater Law (Oklahoma Statutes §82-1020.5) requires that the Oklahoma Water Resources Board conduct hydrologic investigations of the State’s groundwater basins to support a determination of the maximum annual yield for each groundwater basin. At present (2025), the Oklahoma Water Resources Board has not established a maximum annual yield for the Red River alluvial...
Authors
Chloe Codner, Nicole C. Gammill, Isaac A. Dale, Amy S. Morris, Ethan A. Kirby, Grant Graves, Evin Fetkovich, Derrick Wagner, Jon Sanford, Colin A. Baciocco

Land application of drill waste: A scope analysis Land application of drill waste: A scope analysis

Drilling fluid waste land application, a process where drilling wastes are spread and tilled into the land surface, has become common in some petroleum-producing states, however, the potential benefits and risks of this practice are not well studied. Drilling fluids can be water- or oil-based and can have high concentrations of total soluble salts and total petroleum hydrocarbons...
Authors
Matthew S. Varonka, Melissa Lombard, Todd Preston, Timothy Bartos, Jason Masoner, Isabelle Cozzarelli

Science

Helping Secure Our Nation’s Food Supply: The Intersection of Agriculture, Health, and Environment

Agriculture is vital to the U.S. economy, supplying food, fibers, fuels, and jobs. Ensuring the quality of our natural resources is essential for keeping our food safe and plentiful. The USGS studies environmental factors affecting food security and offers valuable insights to reduce health risks, ensuring a safer food supply and a healthier environment.
Helping Secure Our Nation’s Food Supply: The Intersection of Agriculture, Health, and Environment

Helping Secure Our Nation’s Food Supply: The Intersection of Agriculture, Health, and Environment

Agriculture is vital to the U.S. economy, supplying food, fibers, fuels, and jobs. Ensuring the quality of our natural resources is essential for keeping our food safe and plentiful. The USGS studies environmental factors affecting food security and offers valuable insights to reduce health risks, ensuring a safer food supply and a healthier environment.
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Preliminary Research Sheds Light on Proper Analysis and Sample Handling for the Tire-Derived Contaminants 6PPD and 6PPD-quinone

Tire and road wear particles have been shown to cause acute effects to sensitive aquatic animals and degrade their habitats. U.S. Geological Survey (USGS) scientists developed methods to accurately identify aquatic compounds, such as 6PPD and 6PPD-quinone, that can cause acute mortality events in coho salmon (Oncorhynchus kisutch).
Preliminary Research Sheds Light on Proper Analysis and Sample Handling for the Tire-Derived Contaminants 6PPD and 6PPD-quinone

Preliminary Research Sheds Light on Proper Analysis and Sample Handling for the Tire-Derived Contaminants 6PPD and 6PPD-quinone

Tire and road wear particles have been shown to cause acute effects to sensitive aquatic animals and degrade their habitats. U.S. Geological Survey (USGS) scientists developed methods to accurately identify aquatic compounds, such as 6PPD and 6PPD-quinone, that can cause acute mortality events in coho salmon (Oncorhynchus kisutch).
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Socio-Hydrology

The Socio-Hydrology Team conducts interdisciplinary studies spanning socioeconomic, hydrologic and climate science. Applying qualitative and quantitative approaches, we help stakeholders identify and assess a suite of water and climate risks. Our methodology provides a means for resource managers, practitioners, and communities to analyze and evaluate risks, vulnerability, and resiliency to...
Socio-Hydrology

Socio-Hydrology

The Socio-Hydrology Team conducts interdisciplinary studies spanning socioeconomic, hydrologic and climate science. Applying qualitative and quantitative approaches, we help stakeholders identify and assess a suite of water and climate risks. Our methodology provides a means for resource managers, practitioners, and communities to analyze and evaluate risks, vulnerability, and resiliency to...
Learn More
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