Katy requires erosion and sediment controls as part of the SWPPP for one-acre construction sites and incorporates Harris County PCPM design standards for stable channels and detention ponds.
Erosion control in Katy is delivered through the stormwater discharge ordinance (Article 3.11). Construction sites disturbing one acre or more must implement a Stormwater Pollution Prevention Plan with structural and non-structural Best Management Practices to control sediment runoff. The city's minimum construction standards reference Harris County Flood Control District PCPM standards (July 2019) for hydrology, open-channel design, and detention pond methodology, which include erosion-resistant channel grading. Irrigation systems must be designed and operated to prevent water waste, reduce dust, and control erosion. Owners must maintain BMPs throughout and after construction.
Allowing soil to wash off-site without silt fence or stabilized construction entrances, failing to seed disturbed areas, or operating without an approved erosion control plan triggers stop-work orders.
See how other cities in Fort Bend County handle erosion control.
See how Katy's erosion control rules stack up against other locations.
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