General Permit TXR040000 for Phase II (Small) MS4s
Requirements for obtaining authorization for stormwater discharges from small MS4s, the new General Permit, forms and annual reporting.
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HOTUPDATE2024 Phase II MS4 Annual Report Template Available
Due to delays in the development of the Texas NeT-MS4 annual reporting module, annual reports under the 2024 Phase II MS4 General Permit term will not be submitted electronically until further notice is provided by TCEQ.
All annual reports must be submitted hard copy (paper) using the appropriate form.
The 2024 MS4 Phase II Annual Report template is now available.
NOTE: If the small MS4 has not received official approval of your Notice of Intent (NOI) under the 2024 general permit term, you must continue to use the July 2019 annual report template.
The annual report (hard copy) must be submitted to the following locations:
- Original – TCEQ Austin Headquarters Office Stormwater Permits Team (MC-148), and
- Copy – The TCEQ Regional Office that serves the area of the regulated small MS4
The annual report must be signed (in accordance with 30 TAC §305.128 relating to Signatories to Reports).
Small MS4s having a public website are required to post their annual report on their website, no later than 30 days after the due date, to share information with the public
Renewal of the Phase II MS4 General Permit, TXR040000
On August 14, 2024, the Commission adopted the 2024 TPDES Phase II (Small) Municipal Separate Storm Sewer System (MS4) General Permit, TXR040000. The renewed general permit was issued and effective on August 15, 2024.
Existing small MS4 permittees and newly regulated small MS4s (due to the new or expanded urban areas with a population of at least 50,000 people in the 2020 Decennial Census) had 180 days from the effective date of the 2024 general permit to submit a Notice of Intent (NOI) or a Waiver application, as appropriate. Applications were due by February 11, 2025.
Small MS4s must first develop or update their Stormwater Management Program (SWMP) to address the 2024 general permit requirements prior to submitting the complete NOI and $400 application fee to obtain authorization to discharge.
The NOI or Waiver must be submitted electronically via the NPDES Electronic Reporting Tool for MS4s (NeT-MS4 ) online electronic permitting system, unless the small MS4 operator requested and obtained an Electronic Reporting Waiver.
Small MS4 operators that are granted an Electronic Reporting Waiver must submit the application on a paper NOI or Waiver form provided by the executive director. Contact the TCEQ Stormwater Permits Team to obtain the Request for Electronic Reporting Waiver Form (TCEQ-20754). This form must be submitted along with submittal of a paper application (NOI or Waiver) for authorization under the 2024 general permit.
NOTE: Existing small MS4 operators must continue to implement ongoing items in their most recently TCEQ approved SWMP until a renewal NOI is submitted and approved by TCEQ under the 2024 general permit.
Back to top2024 TPDES General Permit for Phase II MS4s
The 2024 Phase II MS4 General Permit, TPDES Permit No. TXR040000, was issued on August 15, 2024. It authorizes the discharge of stormwater to surface water in the state from small MS4s.
For specific information on the permit requirements, please refer to the following:
To access historical information for the renewal process, please go to the Stormwater Stakeholders Group (SWSG) webpage.
Net-MS4 Resources and Training:
For NeT-MS4 resources including creating Central Data Exchange (CDX) and NeT-MS4 accounts, training, and additional information see the Assistance Tools for Stormwater Permitting.
2019 TPDES General Permit TXR040000
- 2019 TPDES General Permit TXR0400000
- Fact Sheet and Executive Director’s Preliminary Decision
- Executive Director’s Response to Public Comment
2013 TPDES General Permit TXR040000
- 2013 TPDES General Permit TXR040000 (PDF )
- Executive Director’s Response to Public Comment (published in the December 27, 2013 edition of the Texas Register )
- Fact Sheet and Executive Director’s Preliminary Decision (additional information on the requirements of the general permit)
2007 TPDES General Permit TXR040000
- 2007 TPDES General Permit TXR040000 ( PDF or Word)
- Executive Director’s Response to Public Comment (published in the August 24, 2007 edition of the Texas Register )
- Fact Sheet and Executive Director’s Preliminary Decision (additional information on the requirements of the general permit)
Contact us if you have any questions about this general permit.