Multi-Sector General Permit
To regulate stormwater runoff from industrial facilities, stormwater permit coverage requirements have been established by the EPA and the TCEQ and are determined by a facility’s Standard Industrial Classification (SIC) code. If you have a NAICS code but no SIC code that describes your industrial activity, it will be necessary to convert the NAICS code to an SIC code to determine if coverage under this permit applies to your facility.
More information on which industries require stormwater permit coverage is available at:
- Sector Lookup Tool
- SIC Code Lookup Tool
- NAICS Code Conversion Tool
The most recent TPDES Multi-Sector General Permit (MSGP) for stormwater discharges associated with industrial activity became effective on Aug. 14, 2021. This five-year permit will expire in August 2026.
If your industrial activity is described by one of the required SIC codes, you MUST have permit coverage.
If all industrial activities and materials are performed and contained inside a building or under a storm-resistant shelter, and are isolated from rain, snow, snowmelt, and runoff, you may be eligible for a conditional No Exposure Exclusion from permit requirements.
If you store materials or perform any processes outside, you must obtain coverage according to the MSGP which includes completing a Notice of Intent (NOI) to obtain permit coverage.
Most industrial facilities within the City of Fort Worth that require stormwater permitting apply for coverage under the MSGP. Other permitting options include individual permits as well as other industry specific water quality general permits.