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Texas Water Science Center

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Green Folder


Current streamflow conditions map.
View a detailed map.





USGS Water Science Centers are located in each state.

There is a USGS Water Science Center office in each State. Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

Water Resources of Texas

The U.S. Geological Survey (USGS) Texas Water Science Center works in cooperation with approximately 100 municipalities, river authorities, groundwater districts, and State and Federal agencies in Texas to provide reliable, impartial scientific information to resource managers, planners, and other customers. This information is gathered by the USGS Texas Water Science Center to minimize the loss of life and property from natural disasters, to contribute to the conservation and sound economic and physical development of the Nation's natural resources, and to enhance the quality of life by monitoring water, biological, energy, and mineral resources.

The USGS provides real-time stream stage and stream flow, water quality, and groundwater levels for more than 650 sites in Texas.

USGS Texas Online Publications


USGS WaterAlert

Receive instant, customized updates about water conditions by subscribing to WaterAlert.

Quick Link to Real-Time Data

View site list: SW | GW | QW
TX Basins

Click on the map to view real-time sites by river basin

Spotlight on Texas Seminar Series

10 Years of USGS Texas Water Science Seminars!

Since 2004, the USGS Texas Water Science Center has provided 100 free public seminars!

These informal Science Seminars serve to broadly share information about water issues pertinent to Texas by:

  • Highlighting activities being done in the Texas Water Science Center
  • Exploring scientific research results from the USGS and other agencies
  • Hosting national and international subject matter experts

See upcoming seminars or browse the seminar archive at

To be alerted to upcoming seminars and other USGS information, email

Upcoming Seminar: 7/23/2014,  11:00am CST

Long-term Streamflow Trends in Texas

Presented by: William Asquith, USGS, Texas Water Science Center

Spotlight on USGS News

View sealcoat website

Spotlight on Texas Projects

The Texas Water Science Center conducts hydrologic projects that address a wide variety of water-resources issues, including water supply, groundwater contamination, nutrient loading in streams, effects of land use on water quality, and basic hydrologic data collection.

arrowAll Texas Projects

Featured Project:

Contaminants in Streambed and Suspended-Sediments in Bexar County

    Hydrologic Technician Brian Petri

    Elevated concentrations of sediment-associated contaminants are typically associated with urban areas, and San Antonio is the seventh most populous city in the U.S. During 2007–09, the USGS collected streambed sediment samples during baseflow and suspended-sediment samples during stormwater runoff at 20 sites in the Medio Creek, Medina River, Elm Creek, Martinez Creek, Chupaderas Creek, Leon Creek, Salado Creek, and San Antonio River watersheds. The samples were analyzed for major and trace elements and organic compounds including halogenated compounds and polycyclic aromatic hydrocarbons (PAHs). Concentrations were mostly low compared to consensus-based sediment-quality guidelines and compared to samples collected during previous USGS studies in the Austin and Fort Worth areas. The overall degree of sediment contamination was highest in samples collected from four sites in Leon Creek and one site in the San Antonio River.

arrow Fact Sheet | Spanish language version


Paint it Black

Paint it Black
by Douglas Harned

Pete Van Metre and Barbara Mahler discuss an experiment to assess release of Polycyclic Aromatic Hydrocarbons (PAHs) from coal tar pavement sealant after application on a parking lot.

Watch the video at

Featured Mapping Application

      Streamer Screenshot

      Announcing Streamer - Developed and Powered by the USGS Texas Water Science Center

      On July 17, 2013, the Texas Water Science Center and National Atlas of the United States announced the launch of Streamer - a new National Atlas Dynamic Map that allows anyone to trace up and down America's major streams and to learn a little about the surface waters, people, and places along each trace. Streamer lets you navigate rivers in the United States the way other interactive maps help you drive your vehicle from one place to another. Unlike our nation’s road network, which provides many choices for traveling between two locations, America’s surface waters are somewhat like a network of one-way streets. You can certainly navigate upstream, but all water flows one way: downhill. Use Streamer to trace downstream along that downhill path or use Streamer to trace upstream to highlight rivers at higher elevations that flow to your starting point.

      In the first 5 days since the release of Streamer, the USGS Texas Water Science Center has seen more than 35,000 visits to the Dynamic Map, 120,000 stream traces performed, with over 1 billion river miles traced and counting....

      Streamer is directly accessible from the National Atlas homepage. The National Atlas homepage now includes an animation that gives you an overview of the application and its exciting new capabilities!

Data Highlights

2011 Water Data Now Available (Quick look:
Beginning with water year 2006, the annual water data product took on a new format different from the previous report series. The basic product is a Site Data Sheet that serves to publish all data collected during the water year at any given site.

For more information about this topic, click now.

Annual Water Data for Texas home page.The 2011 USGS Water Data Report (Opens Water Data Report page in new window. ) is now available to provide a snapshot of water conditions for a given year. The report includes text and map interfaces that can be used to identify and access an area of interest, locate sites where water data were collected for various Water Years

Instantaneous Data Archive (IDA) (Quick look:
Since 1889 the United States Geological Survey has collected continuous stage, discharge, and other instantaneous time-series data on the nations rivers and streams. These time-series data have been and are typically recorded at intervals ranging from 5 to 60 minutes. These instantaneous data have been processed into and published as various daily values, such as the daily maximum, minimum, and/or mean. Because the published record are daily values, the original instantaneous data have not historically been officially approved, published, or made widely available. This web site has been established to make available as much historical instantaneous data from USGS data collection stations as possible. Although this site currently serves instantaneous discharge (streamflow) data only, work is planned to extend it to other time-series parameters in the future.

For more information about this topic, click now.

Instantaneous Data Archive for Texas.The Instantaneous Data Archive(Opens Water Data Report page in new window.) makes available as much intra-day streamflow data and historical instantaneous data continuous (measurements from every 5 to every 60 minutes), as possible, often several years' worth of data.

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Page Last Modified: Tuesday, 15-Jul-2014 16:13:44 EDT

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