Pursuant to federal requirements, all projects initiated after October 1, 2001, for new development on parcels 5 acres or larger, and significant redevelopment on parcels 5 acre or larger that change the impervious surface of 1 or more acres, in the City of Houston and the unincorporated areas of Harris County are subject to local stormwater quality permitting requirements. This permitting program is required for the municipal separate storm sewer system (MS4) permit that the City and County, along with Harris County Flood Control District (HCFCD) and TxDOT, are implementing as mandated by EPA regulations.

The Stormwater Quality permit (SWQ Permit) process has been incorporated into the plan approval and permitting processes for Houston, Harris County and HCFCD. The SWQ permit requires the development and submission of a Stormwater Quality Management Plan (SWQMP) in accordance with guidance provided by the City of Houston, Harris County and HCFCD. The SWQMP must describe the site drainage characteristics and the Best Management Practices (BMPs) that will be put in place to limit any increases in the discharge of pollutants in stormwater as a result of development and to reduce the discharge of pollutants in stormwater from redevelopment.

The City and County have developed several guidance documents to assist participants in Construction, New Development and Significant Redevelopment stormwater projects. See "Featured Downloads & Links".


This site brought to you by the Stormwater Management Joint Task Force: