Instream Uses Program
Environmental Reviews of Water Right Applications
In river basin and bay systems with adopted environmental flow standards, staff applies these standards to applications for new appropriations of water. (Title 30, Texas Administrative Code, Chapter 298). See the Environmental Flows page.
In basins with no standards, staff evaluates available information related to a proposed water project to consider potential impacts to fish and wildlife habitat, water quality, and instream uses associated with the affected body of water and downstream areas.
If the project is within 200 river miles from the Texas coast, freshwater inflows to bays and estuaries are also addressed.
Once the information is gathered and assimilated, staff makes a recommendation about the type of restriction or condition which might be required to satisfy environmental concerns.
Information You Need for Your Applications
Texas Instream Flow Program
This cooperative program was jointly established and is maintained by the TCEQ, Texas Parks and Wildlife, and the Texas Water Development Board. The program collects and evaluates instream flow data and studies and analyzes methodologies for determining the flow conditions that support a sound ecological environment in the state's rivers and streams. (Senate Bill 2, 7th Texas legislative session) Texas Water Code 16.059 .
Basin and Bay Systems With Adopted Flow standards:
- 30 TAC 298 .
Basins With No Adopted Environmental Flows Rules
For more information on the Instream Uses Program, please call 512-239-4691.
Other Resources and Links
- Projects within the Coastal Management Zone are required to be consistent with certain policies and goals of the Coastal Management Program .
- Some projects such as a reservoir project may require authorization from the U.S. Army Corps of Engineers. Please contact the Fort Worth District, Galveston District, or Tulsa District for more information . Additionally, a State Water Quality Certification (401 Permit) may be required. See the TCEQ Water Quality Certification Program website for more information.
- The Atlas of Texas Surface Waters provides information on Classified Water Quality Segments. See the TCEQ Water Quality Standards website for information on segment criteria and uses.
- Texas Parks Wildlife Department's Environmental Concerns and River Guide provide information regarding instream flows, recreational uses, and navigability.
- The U.S. Geological Survey (USGS) provides Real-time Streamflow Conditions in Texas for current hydrological conditions.