Texas Thermal Discharges: What you need to know

Governing Law and Regulations

Thermal limitations: 30 Texas Administrative Code (TAC) 307.4(f)

For a Limited Time receive a FREE EHS Report "Recordkeeping for EHS Managers." This special report contains a recordkeeping checklist to help you keep track of your records for major environmental laws and OSHA's Hazard Communication Standard. Download Now

Classified stream segments: 30 TAC 307.10 Appendix A

Regulatory Agencies

Texas Commission on Environmental Quality (TCEQ) Office of Permitting, Remediation, and Registration Water Quality Division

U.S. Environmental Protection Agency (EPA) Region 6

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Texas has established thermal discharge limitations that follow the guidelines of the federal Clean Water Act (CWA). Texas has developed temperature standards for stream segments of state waters and has established thermal discharge requirements as part of the National Pollutant Discharge Elimination System (NPDES) permit program. See the state section EFFLUENT LIMITATIONS for more information on state water quality standards.

Administration and enforcement. TCEQ's Water Quality Division is responsible for the administration and enforcement of the state's thermal discharge regulations.

State Requirements


30 TAC 307.4(f)

Temperature in industrial cooling lake impoundments and all other surface water in the state must be maintained so as not to interfere with the reasonable use of such waters. Numerical temperature criteria have not been specifically established for industrial cooling lake impoundments.

The following table lists temperature criteria, expressed as a maximum temperature differential, that are established, except for industrial cooling impoundments, temperature elevations due to discharges of treated domestic effluent, and temperature elevations within designated mixing ...

>> Read more about Thermal Discharges

State Requirements

National | Alabama | Arizona | Arkansas | California | Colorado | Connecticut | Delaware | Florida | Georgia | Illinois | Indiana | Iowa | Kansas | Kentucky | Louisiana | Maryland | Massachusetts | Michigan | Minnesota | Mississippi | Missouri | Montana | New Hampshire | New Jersey | New York | North Carolina | Ohio | Oklahoma | Oregon | Pennsylvania | Rhode Island | South Carolina | Tennessee | Texas | Utah | Virginia | Washington | West Virginia | Wisconsin |

Texas Thermal Discharges Resources

Thermal Discharges Products

Free Special Reports
Get Your FREE Special Report. Download Any One Of These FREE Special Reports, Instantly!
Featured Special Report
Claim Your Free Copy of Recordkeeping for EHS Managers

One of the most tedious aspects of an EHS manager’s job is to keep track of a host of records. Laws have been passed in every jurisdiction requiring facilities to produce and retain records of various kinds. Don’t get caught without the necessary records in the event of a surprise EPA or OSHA inspection! This special report shows EHS managers at a glance the records they must keep on hand and for how long.

Download Now!

This special report contains a recordkeeping checklist to help you keep track of your records for major environmental laws and OSHA’s Hazard Communication Standard.

Also included are 3 useful tables which provide:
  • A summary listing of federal environmental recordkeeping requirements
  • A list of federal safety recordkeeping requirements.
  • A list of federal recordkeeping requirements for DOT and the Department of Homeland Security as they apply to hazardous material transporters and chemical facilities.
Download Now!