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Assistance Tools for Industrial Stormwater General Permit

Resources to help small businesses and local governments comply with the Multi-Sector General Permit, TXR050000.

What is the TPDES Stormwater Multi-Sector General Permit (TXR050000)?

There are a variety of industrial businesses in Texas. In order to protect surface water in the state, the discharge of stormwater leaving these sites requires a permit. In some cases, the discharge is also monitored for contaminants. The multi-sector general permit is one way to authorize this activity. You can access the Multi-Sector General Permit, TXR050000 Adobe Acrobat PDF Document online.

Do I need to obtain stormwater coverage at my industrial facility?

If you discharge stormwater associated with an industrial activity* into surface water in the state, you may need authorization. If you are not otherwise prohibited, you may obtain coverage under the MSGP permit if:

  • your Standard Industrial Classification (SIC) code is listed in the permit, or
  • your facility conducts an activity described by one or more Industrial Activity Codes described in the permit, or
  • your facility is subject to federal categorical effluent limitations, or
  • your facility has been designated by the Executive Director as requiring coverage.

*(Defined by 40 CFR 122.26(b)(14)Exit the TCEQ)

We have developed a list of SIC Codes and Industrial Activity Codes Subject to TPDES Multi-Sector General Permit Adobe Acrobat PDF Document to help you determine applicability. If you need to look up the SIC code for your facility, please visit the U.S. Occupational Health and Safety Administration's SIC SearchExit the TCEQ SIC ManualExit the TCEQ

If all industrial activities and materials are isolated from rain, snow, snowmelt, and/or runoff by storm resistant shelters, you may be eligible for a conditional no exposure exclusion from permitting requirements.

If all rain, snow, snowmelt, and/or runoff are contained on-site, you may be eligible to claim “No Discharge” and would not be required to obtain permit coverage.

If you need additional help to determine applicability, visit the Stormwater Discharges from Industrial Facilities: Am I Regulated? web page.

How do I obtain authorization under this permit?

Once you have determined applicability, the process to obtain coverage is straightforward.

1. Review your compliance history rating.
2. Read the general permit.
3. Prepare and implement your Stormwater Pollution Prevention Plan (SWP3).

Stormwater Pollution Prevention Plan (SWP3) - An SWP3 is a document that outlines your plans, or best management practices, to control contaminants that may be discharged in stormwater runoff. We have developed templates to help you prepare a complete SWP3. The worksheets are available in PDF Adobe Acrobat PDF Document or in Word Microsoft Word Document, and Worksheet Instructions Adobe Acrobat PDF Document will help you get started. Remember, to update your SWP3 as conditions change at your facility.

4. Submit a Notice of Intent (NOI).

To view step-by-step instructions on how to obtain authorization under this permit, including links to additional resources, visit the Industrial Facilities web page.

Where can I find resources to comply with this permit?

The following resources are available to help you comply with this permit.

General Compliance Overview

Monitoring and Sampling

  • Quarterly Visual Monitoring of Stormwater Runoff (RG-403) Adobe Acrobat PDF Document - Tells industries how and when to conduct required quarterly visual monitoring to assess the effectiveness of their efforts to reduce pollution in stormwater runoff, and provides a form that may be used.
  • Sampling Guide Adobe Acrobat PDF Document - A table designed to help you determine the applicability, frequency, and record-keeping and reporting requirements at your site.

Surface Water Identification

  • 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.
  • Texas Integrated Report of Surface Water Quality - To determine if the water body receiving your stormwater discharges is impaired and to identify the pollutant associated with that impairment, you must review the current Index of All Impaired Waters. For permitting purposes, Category 4 and 5 represent the list of impaired waterways. Only a portion of impaired waters are associated with an established TMDL.
  • Segments with Total Maximum Daily Loads (TMDL)

Forms and Links

PLEASE NOTE: Effective September 1, 2017, applicants must submit the NOI, NEC, NOT, and NOC forms using the online e-permitting system available through the TCEQ website or request and obtain an electronic reporting waiver. Electronic reporting waivers are not transferrable and expire on the same date as the authorization to discharge. Waivers and paper forms may be obtained by contacting the Stormwater Program at 512-239-4671.

Who can I contact if I need more help?

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