Stormwater Pollution Prevention Plans

Stormwater Pollution Prevention Plans (SWP3), Site Inspections, and Reporting

Successful compliance efforts required working knowledge of the Stormwater Pollution Prevention Plan (SWP3).

It’s a good time to review federal, state and local environmental regulations and programs that may apply to your operation. Hydrex Environmental wants to remind you of some regulatory compliance issues your facility may need to address in the coming months.

The Texas Commission on Environmental Quality (TCEQ) is in the process of renewing the state permit that authorizes the discharge of storm water. To remain in compliance, some industrial facilities and municipalities may need to develop or update their Storm Water Pollution Plan (SWP3).

The existing Multi-Sector General Permit (TXR050000) that authorizes the discharge of storm water for industrial facilities expired on August 14, 2026. The new MSGP continues the existing requirement to develop and implement a SWP3.

Every industrial facility, construction activity, and municipal storm water permit will require a SWP3, and developing and implementing one correctly is necessary to stay free from regulatory troubles and potential fines. The proposed MSGP specifies which facilities must obtain coverage, which are eligible for exclusion, which may be automatically authorized, and which may be required to obtain individual coverage. It also requires amending the plan whenever there is a change in design, construction, operation, or maintenance that has a significant effect on the potential for the discharge of pollutants. Proper documentation is also required for termination of a facility’s SWP3 upon a location move or change in the fundamental operation of a facility with an existing permit still in effect.

Hydrex Environmental can determine your potential sources of pollution and outline the requirements you’ll need to meet, which can vary depending on your industry and where you are discharging. We have built productive professional relationships with a range of permitting and planning organizations, and we have extensive experience in the areas of industrial facility environmental audits, waste handling/minimization planning, and related compliance issues.