Industrial Facilities

The 2026 Multi-Sector General Permit (MSGP) TXR050000 for industrial facilities has been issued with an effective date of August 14, 2026. Existing permittees have until November 12, 2026, to submit a Notice of Intent (NOI) or No Exposure Certification (NEC) form to renew their coverage, as applicable, using TCEQ’s online e-permitting system STEERS. All Authorizations that have not been renewed by the end of the 90-day renewal grace period will automatically expire. This 2026 Multi-Sector General Permit permit will expire in August 2031.

Am I Regulated?

You are required to obtain coverage under the MSGP TXR050000 if your facility meets two conditions: (1) your facility discharges stormwater associated with an industrial activity into gutters, streets, channels, ditches or other stormwater conveyances that are part of a municipal separate storm water sewer system (MS4), or surface water in the state, and (2) your business activity fits into one of the regulated industrial sectors, meaning that your industrial activity fits under one or more of the Standard Industrial Classification (SIC) Codes found in here.

How do I find out what my SIC Code is?

The easiest place to find the SIC Code for your facility is on your State of Texas Sales and Use Permit (having to do with your sales tax status). You should verify that the SIC code listed is an accurate description of your primary operations before using this code to determine if you are required to obtain coverage. You may also obtain your SIC code from the database on the OSHA website.

How do I obtain coverage?

There are two options for obtaining coverage.

• If all industrial activities and materials are isolated from rain, snow, snowmelt, and/or runoff, you may be eligible for a conditional No Exposure Certification (NEC) exclusion from permitting requirements. The Guide to the Conditional No-Exposure Exclusion (RG-467) - explains the no-exposure exclusion in detail.

• Otherwise, the general permit requires you to obtain coverage, which includes submitting a Notice of Intent (NOI) form and implementing a Stormwater Pollution Prevention Plan (SWPPP). TCEQ forms and guidance can be found at this link.

Renewals must be submitted using STEERS, the State’s online e-permitting system. A video showing how to submit a MSGP Notice of Intent or renewal in STEERS can be found here.

What if I need help?

Information regarding the Multi-Sector General Permit can be found on their MSGP webpage. Additional help can be found by going to TCEQ’s Small Business and Local Government Assistance’s (SBLGA) Assistance Tools for Industrial Stormwater General Permit webpage. TCEQ's SBLGA section offers free, confidential help to small businesses and local governments working to follow state environmental regulations. Call them at (800) 447-2827 or click on this link to fill out an SBLGA Customer Help Form.

A permit to discharge industrial wastewater to the sanitary sewer is required for certain types of industrial facilities. Every commercial or industrial facility is considered to be an industrial user and Grand Prairie regulates all wastewater discharge from certain types of industrial facilities:

• General Industrial Users
• Monitored Industrial Users
• Significant Industrial Users, Categorical and Non-Categorical

General Industrial Users (IU) include any industrial or commercial facility that discharges wastewater into the City’s sanitary sewer. This type of facility is subject to on-site inspections upon opening and every couple of years. These industries are not subject to the federal categorical pretreatment regulations, do not fit the definition of a significant industrial user, and a permit to discharge wastewater to the sanitary sewer is generally not required. The City has the right to permit, inspect and monitor any of these facilities at any time and all facilities must comply with all applicable environmental regulations.

Monitored Industrial Users (MIU) are those facilities whose process and wastewater discharges do not necessarily fall under the categorical pretreatment regulations or the definition of a significant industrial user, but are of special interest to the City. Some examples are food manufacturers and box manufacturing and printing. These types of facilities do not require a permit to discharge wastewater; however, they are inspected annually and are monitored by the City for pollutants of concern.

Significant Industrial Users (SIU) are sources of industrial wastewater that, by federal regulation, require an increased level of regulatory attention. An SIU is defined as an industrial user that meets any one of the following criteria:

• Is subject to Categorical Pretreatment Standards under 40 CFR 403.6 and 40 CFR Chapter I, Subchapter N.
• Discharges an average of 25,000 gallons per day or more of process wastewater to the City’s sanitary sewer.
• Contributes a process waste stream that makes up 5 percent or more of the average dry weather hydraulic or organic capacity of the wastewater treatment plant.
• Is designated as such on the basis that the industrial user has a reasonable potential for adversely affecting the operation of the treatment plant or the City’s collection system, or for violating any pretreatment standards or requirements.

SIUs must obtain a wastewater discharge permit to discharge any industrial wastewater to the City’s sanitary sewer.  A wastewater discharge permit application is required 60 days prior to commencement of discharge.

Wastewater Permit Application(PDF, 457KB)

Wastewater Permit Application Instructions (PDF, 380KB)

The Pretreatment staff conducts inspections, surveillance and monitoring of industrial wastewater sources discharging to the City’s wastewater collection system. The inspections and sampling are performed in order to independently verify compliance with all applicable pretreatment standards. The pretreatment program is required to use EPA approved sampling and analytical methodologies as per 40 CFR Part 136.

• Inspections of Significant Industrial Users are performed at least once a year and may be announced or unannounced
• Sampling of all Significant Industrial Users (both Categorical and Non-Categorical) is conducted at least once during each semi-annual period and is unannounced
• Inspections of Monitored Industrial Users are performed once a year and may be announced or unannounced
• Sampling of Monitored Industrial Users is conducted at least once during each semi-annual period and is unannounced
• Inspections of General Industrial Users are performed upon opening and once every three years and can be announced or unannounced

Additional inspection and sampling activities are conducted on an as needed basis or according to the compliance history of the facility.

Education

TCEQ MSGP 2016 Renewal Overview - TCEQ Trade Fair presentation(PDF, 567KB)

View An Industry's Guide for Protecting Grand Prairie's Watershed brochure(PDF, 593KB)

Does your company want to turn up the green? Learn how your organization can become involved in Texas Stream Team.

H2O Line Newsletters

• Winter 2024(PDF, 1MB)
• Winter 2023(PDF, 1MB)
• Fall 2022(PDF, 404KB)
• Summer 2022(PDF, 374KB)
• Spring 2022(PDF, 600KB)
• Fall 2021(PDF, 1MB)
• Summer 2021(PDF, 2MB)
• Spring 2021(PDF, 1MB)
• Winter 2021(PDF, 1MB)
• Fall 2020(PDF, 20MB)
• Summer 2020(PDF, 1MB)
• Spring 2020(PDF, 1MB)
• Winter 2019(PDF, 4MB)
• Fall 2019(PDF, 4MB)
• Summer 2019(PDF, 2MB)
• Spring 2019(PDF, 2MB)

• Guidance on TMAH Prohibition(PDF, 215KB)
• Designated Signatory Authority Sample Letter(PDF, 6KB)
• Guide for Developing Your Stormwater Pollution Prevention Plan: Industrial Facilities(PDF, 3MB)
• Mobile Wash Vendor Policy(PDF, 126KB)
• TCEQ AST Petroleum Storage Tank Registration(PDF, 258KB)
• Guide for Developing your Slug Discharge/Accidental Spill Plan(PDF, 96KB)

Facilities covered by The Emergency Planning and Community Right to Know Act (EPCRA) are required to file the Tier II report if they meet the following criteria:

• stored 10,000 pounds of a hazardous chemical during the previous year, or
• stored 500 pounds or the Threshold Planning Quantity (TPQ) of any Extremely Hazardous Substance during the previous year.

All Tier II Reports must be submitted to the Texas Commission on Environmental Quality (TCEQ) using the online Tier II Reporting system available through STEERS. Facilities are also required to submit copies to the LOCAL Emergency Planning Commission (LEPC), and the local fire department. Grand Prairie facilities should submit copies to the Dallas County LEPC, Tarrant County LEPC and Grand Prairie Office of Emergency Management(PDF, 41KB) .

Tier II forms require basic facility identification information, employee contact information for both emergencies and non-emergencies, and the following information about chemicals stored or used at the facility:

• The chemical name or the common name as indicated on the material safety data sheet (MSDS);
• An estimate of the maximum amount of the chemical present at any time during the preceding calendar year and the average daily amount;
• A brief description of how the chemical is stored;
• The location of the chemical at the facility; and
• Whether the owner of the facility elects to withhold location information from disclosure to the public.

Annual reporting is required by both federal and state law. You are required to report the hazardous materials you stored on-site during the previous calendar year by March 1 each year.

Visit the TCEQ Website for information on Tier II Chemical Reporting