When Is a SWPPP Required in Texas?

In Texas, a Stormwater Pollution Prevention Plan (SWPPP or SWP3) is required for most construction and industrial activities that disturb land or discharge stormwater. The Texas Commission on Environmental Quality (TCEQ) administers these requirements under the Texas Pollutant Discharge Elimination System (TPDES) program, which operates in coordination with the U.S. Environmental Protection Agency (EPA) Clean Water Act framework.

Construction Activity SWPPP Requirements

Under TCEQ's Construction General Permit (TXR150000), a SWPPP is required for any construction project that disturbs one acre or more of land, or is part of a larger common plan of development that will ultimately disturb one acre or more. This applies to residential subdivisions, commercial developments, road and utility construction, industrial facility construction, and municipal infrastructure projects across Texas.

Industrial Activity SWPPP Requirements

Industrial facilities that discharge stormwater associated with certain SIC codes are required to obtain coverage under TCEQ's Multi-Sector General Permit (TXR050000) and maintain a site-specific SWPPP. This includes manufacturing plants, scrap yards, transportation facilities, oil and gas operations, mining operations, and other industrial sectors identified by the EPA. Industrial SWPPPs must address facility-specific pollutant sources, stormwater monitoring requirements, and Best Management Practices (BMPs) for controlling runoff.

What Must a Texas SWPPP Include?

A compliant Texas SWPPP must include a site description and map showing drainage patterns, soil types, and receiving waters; identification of potential pollutant sources; a description of erosion and sediment controls (BMPs) to be implemented; a schedule for BMP installation and maintenance; documentation of responsible personnel and inspection procedures; and records of stormwater inspections, corrective actions, and any required monitoring data. The plan must be kept on-site or readily accessible and updated as site conditions change.

NOI, NOT, and NOC Filing Requirements

Before construction begins, operators must file a Notice of Intent (NOI) with TCEQ to obtain permit coverage. A Notice of Change (NOC) is required when project details change, and a Notice of Termination (NOT) must be filed once final stabilization is achieved and stormwater controls are no longer needed. Reed & Associates supports clients through each phase of permit documentation, ensuring filings are accurate, timely, and compliant.

Need a SWPPP in Texas? Reed & Associates Can Help.

Reed & Associates Environmental Consulting prepares construction and industrial SWPPPs, conducts stormwater inspections, and supports TCEQ and EPA compliance for developers, general contractors, and industrial operators across East Texas, DFW, Austin, and surrounding markets. With more than 75 years of combined experience, our team delivers practical, field-tested stormwater compliance solutions. Contact us today to request a quote or discuss your project's SWPPP requirements.