Water Quality
Water Quality
Contaminants
We study contaminants in and natural chemistry of surface water and groundwater
We study contaminants in and natural chemistry of surface water and groundwater
Water chemistry
We study water chemistry in surface water and groundwater across Oklahoma and Texas
We study water chemistry in surface water and groundwater across Oklahoma and Texas
Harmful Algal Blooms (HABs)
We study HAB issues using a combination of traditional methods and emerging technologies
We study HAB issues using a combination of traditional methods and emerging technologies
Nutrients
We research nutrients by analyzing water samples and habitats across Oklahoma and Texas
We research nutrients by analyzing water samples and habitats across Oklahoma and Texas
Sediments
We collect sediment data to assist in understanding long-term water quality trends
We collect sediment data to assist in understanding long-term water quality trends
The USGS Oklahoma-Texas Water Science Center conducts water-quality studies from initial assessments to long-term monitoring.
Filter Total Items: 32
Transboundary Aquifer Assessment Program (TAAP)
Many communities along the U.S.-Mexico border have limited surface water supply and rely on transboundary aquifers for industry, agriculture, and drinking water; however, information on water needs, water quality, and the extent and functioning of these aquifers is incomplete. The Transboundary Aquifer Assessment Program (TAAP), established through a binational agreement between the United States...
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-bed...
Red River Focus Area Study
The USGS is undertaking a 3-year study of water use, availability, and change in the Red River basin in one of several national “Focus Area Studies” in the Department of Interior’s WaterSMART initiative . The Red River basin covers more than 93,000 square miles in New Mexico, Texas, Oklahoma, Arkansas, and Louisiana with a population of about 4.3 million people. Water resources in the basin are...
National Water-Quality Assessment Project in Texas - Surface Water Activities
The USGS National Water-Quality Assessment (NAWQA) Project was established by Congress in 1992 to answer the following question: What is the status of the Nation’s water quality and is it getting better or worse? Since 1992, NAWQA has been a primary source of nationally consistent data and information on the quality of the Nation’s streams and groundwater. Data and information obtained from...
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.
Hydrogeologic Framework and Geochemistry of Gaines, Terry, and Yoakum Counties
In 2014, USGS, in cooperation with Llano Estacado Underground Water Conservation District , Sandy Land Underground Water District , and South Plains Underground Water Conservation District , began a multiphase project to develop a regional conceptual model of the hydrogeologic framework and geochemistry of the Ogallala, Edwards-Trinity, and Dockum aquifers. The Ogallala aquifer is the shallowest...
Hydrogeologic Atlas for Fort Bliss
Successful long term stewardship of Fort Bliss lands includes managing traditional hydrologic resources such as surface water and groundwater resources and increasingly, geologic resources such as geothermal reservoirs and deep well injection locations. The USGS Texas Water Science Center is developing a garrison-wide hydrogeologic atlas that describes the hydrology and hydrogeology of Fort Bliss...
Urban Waters Federal Partnership - Edwards Aquifer Recharge Zone Monitoring Network
The USGS Texas Water Science Center is implementing a more complete and integrated monitoring network for the Edwards aquifer to improve the understanding of aquifer water quality and establish a baseline for measuring future water-quality changes.
Dallas Compounds of Emerging Concern Study
Pharmaceuticals and personal care products (PPCPs), as environmental contaminants, are a source of increasing concern because of their possible disruption of endocrine systems in humans and other organisms. The USGS Texas Water Science Center is collecting and analyzing samples from inflows and outflows of five Dallas water treatment plants and five sites in the Trinity River for pharmaceuticals...
Dallas Lake Nutrients Study
The USGS Texas Water Science Center Nutrients Study for Dallas Water Utilities (DWU) provides discrete-depth data for nutrients, major ions, and other water-quality parameters in multiple source-water reservoirs used by DWU. The program is designed to assess nutrient and major ion occurrence, distribution, and concentration in waters by using established field and laboratory methods.
Cyanobacteria Methods
Texas Water Science Center (TXWSC) scientists are testing different methods of detecting and quantifying cyanobacteria and cyanotoxins in Texas reservoirs. The results of these tests could be used to develop a cost-effective monitoring plan to evaluate the presence and concentration of cyanobacteria and cyanotoxins in Texas reservoirs.
Nutrient and Sediment Monitoring in Inflows to Texas Bays and Estuaries
The USGS Texas Water Science Center is evaluating the variability of nutrient and sediment concentrations and loads entering Texas bays and estuaries across a range of hydrologic conditions in Galveston Bay (inflow from the Trinity and San Jacinto Rivers), Matagordo Bay (inflow from the Colorado River), San Antonio Bay (inflow from the Guadalupe River), and Nueces Bay (inflow from Nueces River).