The Texas Commission on Environmental Quality (TCEQ) is renewing the Texas Pollutant Discharge Elimination System (TPDES) Multi-Sector General Permit (MSGP), TXR050000, which authorizes the discharge of stormwater associated with industrial activity. The current permit expires on August 14, 2026. Stakeholder comments on proposed changes are due by November 20, 2025, with the finalized permit anticipated shortly after.
This renewal will bring updates that affect how facilities maintain stormwater compliance. Understanding these changes and planning early will be critical to ensure uninterrupted permit coverage.
Anticipated Changes to the MSGP
While the final language has not yet been released, proposed updates include:
- Clarification of Standard Industrial Classification (SIC) codes to improve permit applicability and sector assignment
- Allowances for firefighting water discharges under defined conditions
- Expanded NetDMR reporting requirements for electronic data submissions
- Acceptance of electronic Stormwater Pollution Prevention Plans (SWP3s) to streamline documentation and review
- New Benchmark Monitoring requirements for certain industrial sectors
These changes reflect TCEQ’s ongoing efforts to modernize the permit and strengthen stormwater program oversight.
Implications for Facilities
Industrial facilities covered by the MSGP must obtain new permit coverage once the current authorization expires. This process will include:
- Preparing an updated Stormwater Pollution Prevention Plan (SWP3) with all required sector-specific details
- Submitting a new Notice of Intent (NOI) for TCEQ approval
- Implementing any additional monitoring or reporting that may result from updated sector requirements
Because the MSGP is renewed on a five-year cycle, renewal years often see high demand for regulatory support. Planning now will help avoid delays and ensure a smooth transition to the updated permit.
How EDGE Can Help
EDGE Engineering & Science is already preparing for the 2026 MSGP renewal cycle and helping clients position for compliance. Our team of experts can:
- Assess how proposed changes could affect your facility’s coverage and monitoring obligations
- Update your SWP3 and associated compliance records
- Prepare and submit your NOI on your behalf
- Provide ongoing support to address new or evolving requirements
We anticipate that many facilities will require assistance with renewal of this five-year permit, so let EDGE help you start planning now. Do not hesitate to get in touch with our team if your organization would like to be added to the renewal list or if you have questions about the 2026 MSGP.