>> Questions or Comments: TexasEnviroHelp@tceq.texas.gov
You are here:

Assistance Tools for Municipal Separate Storm Sewer Systems (MS4s)

Resources for small businesses and local governments regarding municipal separate storm sewer systems (MS4s).

Municipal separate storm sewer systems (MS4s) consist of a conveyance or system of conveyances, including roads with drainage systems, streets, catch basins, curbs, gutters, ditches, human-made channels, or storm drains. The following resources are provided to assist the regulated community in meeting permit requirements.

Tools

Maps

  • HOT Interactive Map of Urbanized Areas - Determine if your Municipal Separate Storm Sewer System (MS4) is in an urbanized area and required to obtain stormwater permit coverage.
  • Urbanized Area Maps Exit the TCEQ
  • Surface Water Quality (Segments) Viewer - Using this interactive map viewer, users can view stream segments and water bodies monitored by TCEQ. Users can also select a particular segment or water body to view additional information such as segment name, ID number, description, and impairment status.

Forms

  • Notice of Intent (NOI) for Stormwater Discharges from Small Municipal Separate Storm Sewer Systems (MS4) under the TPDES Phase II MS4 General Permit (TXR040000) (TCEQ Form 20368) Microsoft Word Document
  • Waiver for Stormwater Discharges from Small Municipal Separate Storm Sewer Systems (MS4) under the TPDES Phase II MS4 General Permit (TXR040000) (TCEQ Form 20369) Microsoft Word Document
  • Phase II (Small) MS4 Annual Report Form 2019 TPDES General Permit No. TXR040000 (TCEQ Form 20561) Microsoft Word Document

Links

U.S. Environmental Protection Agency

The following links take you off the TCEQ website (). If you encounter an inactive (broken) link, please send an e-mail to TexasEnviroHelp@tceq.texas.gov and indicate which link was broken.

Phase I MS4s in Texas

Where can I find more information and assistance?

The TCEQ's Small Business and Local Government Assistance Section offers free, confidential help to small businesses and local governments working to comply with state environmental regulations. Call us at (800) 447-2827 or visit our Web page at TexasEnviroHelp.org.

Back to the top of the page Back to top