Assistance Tools for Industrial Stormwater General Permit
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 online.
Important Note: Be sure you are viewing the current version of the permit with an effective date of August 14, 2016. If the first page shows August 14, 2011, try one of the following:
- If using Internet Explorer, close the document and return to the internet browser window. Press both Control and F5 on your keyboard, then try opening the document again.
- Visit the webpage by using a different internet browser such as Google Chrome or Firefox.
- If neither of these options are effective, call our Small Business & Local Government Assistance Hotline at 1-800-447-2827. We can e-mail a copy of the current permit to you.
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))
We have developed a list of SIC Codes and Industrial Activity Codes Subject to TPDES Multi-Sector General Permit 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 Search or SIC Manual web page.
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.
- The Conditional No-Exposure Exclusion for Stormwater Runoff: A Guide for Industries Operating Under the TPDES Multi-Sector General Permit, TXR050000 (RG-467) guidance explains the no-exposure exclusion in detail.
If you need additional help to determine applicability, visit the Stormwater Discharges from Industrial Facilities: Am I Regulated? web page.
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).
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.
The following resources are available to help you comply with this permit.
General Compliance Overview
- Stormwater Multi-Sector General Permit for Industrial Facilities – Requirements and options for the treatment and discharge of stormwater from industrial facilities under General Permit TXR050000, and links to other pages relevant to this permit
- Basics of Industrial Stormwater Regulations (RG-514) - This publication provides detailed information on permit applicability, types of authorization, obtaining coverage, developing a SWP3, sampling and monitoring requirements, and record keeping.
Monitoring and Sampling
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.
- Atlas of Texas Surface Waters (GI-316)
- 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
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.