Stormwater Permit Compliance for Texas Oil & Gas Facilities
Updated March 2026 · 9 min read
Stormwater compliance is one of the most overlooked — and most frequently violated — regulatory obligations for Texas oil and gas facilities. If your facility has any industrial activity exposed to rainfall, you likely need a stormwater permit, and the ongoing compliance requirements are more demanding than many operators realize.
This guide covers the stormwater permitting framework for Texas oil and gas operations, including which permits apply, what a Stormwater Pollution Prevention Plan (SWPPP) must contain, and how to stay in compliance.
Who Needs a Stormwater Permit?
In Texas, stormwater discharges associated with industrial activity are regulated under the Texas Pollutant Discharge Elimination System (TPDES), which is administered by TCEQ. Oil and gas facilities that typically need stormwater permit coverage include:
- Gas processing plants and compressor stations
- Crude oil terminals and tank farms
- Equipment yards and maintenance facilities
- Saltwater disposal facilities
- Construction sites disturbing one or more acres
Note that oil and gas exploration, production, and processing operations that are exempt from NPDES permitting under Section 402(l) of the Clean Water Act may still need coverage for non-exempt activities at the same site.
The Multi-Sector General Permit (MSGP)
Most oil and gas industrial facilities in Texas obtain stormwater coverage under TCEQ's Multi-Sector General Permit (TXR050000). This general permit covers stormwater discharges from various industrial sectors, including oil and gas-related activities classified under Sector I (Oil and Gas Extraction) and Sector C (Chemical and Allied Products Manufacturing).
To obtain coverage, operators must submit a Notice of Intent (NOI) to TCEQ, develop and implement a SWPPP, and begin monitoring and sampling stormwater discharges.
Stormwater Pollution Prevention Plan (SWPPP)
The SWPPP is the cornerstone of stormwater compliance. It must be site-specific and include:
- Site description: Facility layout, drainage areas, outfall locations, and receiving water bodies
- Potential pollutant sources: Identification of all industrial activities, materials, and areas that could contribute pollutants to stormwater
- Best Management Practices (BMPs): Structural and non-structural controls to prevent or reduce pollutant discharge — including secondary containment, berms, covers, and housekeeping practices
- Monitoring plan: Sampling parameters, frequency, and analytical methods for each outfall
- Inspection schedule: Routine facility inspections and post-storm event inspections
- Employee training: Annual stormwater training for all personnel involved in industrial activities
The SWPPP must be kept on-site and updated whenever there are changes to the facility, industrial processes, or BMPs.
Sampling and Monitoring Requirements
Under the MSGP, operators must collect stormwater samples during qualifying rain events (typically defined as a storm event producing at least 0.1 inches of rainfall after 72 hours of dry weather). Samples must be collected within the first 30 minutes of discharge when feasible.
Common parameters monitored at oil and gas facilities include Total Suspended Solids (TSS), Oil and Grease, Chemical Oxygen Demand (COD), pH, and any sector-specific benchmark parameters. If sample results exceed benchmark values, operators must review and enhance their BMPs and document corrective actions in the SWPPP.
Inspection Requirements
The MSGP requires two types of inspections: routine facility inspections (at least quarterly) to check that BMPs are functioning properly and materials are stored correctly, and post-storm event inspections after significant rain events to document any evidence of pollutant discharge, erosion, or BMP failure. All inspections must be documented with the date, inspector name, findings, and any corrective actions taken.
Annual Reporting
The stormwater annual report is due to TCEQ by June 30 each year. It must summarize all sampling results from the previous year, document BMP effectiveness, report any benchmark exceedances and corrective actions, and certify compliance with the SWPPP. Late or missed annual reports are a common trigger for TCEQ enforcement.
Common Stormwater Violations
The most frequently cited stormwater violations at oil and gas facilities include failure to obtain permit coverage before discharging, no SWPPP or an inadequate SWPPP that does not reflect current site conditions, missed sampling events, failure to conduct required inspections, benchmark exceedances without documented corrective actions, and failure to submit the annual report on time.
CompliantIntel tracks your stormwater sampling schedules, inspection due dates, and annual reporting deadlines automatically — so nothing slips through the cracks.