Environmental Rules in Katy, TX (2026)
4 verified environmental rules for Katy, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Katy requires a stormwater pollution prevention plan and TPDES coverage for any construction site disturbing one or more acres, including post-construction BMPs maintained by the property owner.
Stormwater Discharge Rules for Katy Construction
Heavy RestrictionsErosion Control
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.
Construction Site Erosion Control in Katy
Heavy RestrictionsFlood Zones
Katy's flood damage prevention article requires anchoring, flood-resistant construction, and floodplain administrator approval for all new construction and substantial improvements in special and moderate flood hazard areas.
Flood Damage Prevention Standards in Katy
Heavy RestrictionsGrading & Drainage
Katy's minimum construction standards require storm sewers to contain a two-year storm without surcharging at minimum 0.1% gradient using Class III concrete pipe and follow Harris County PCPM hydrology standards.
Grading and Drainage Standards in Katy
Heavy RestrictionsTex. Local Government Code Sec. 232.003 (Subdivision Requirements - Drainage Specifications)
Sec. 232.003. SUBDIVISION REQUIREMENTS. By an order adopted and entered in the minutes of the commissioners court, and after a notice is published in a newspaper of general circulation in the county, the commissioners court may:(1) require a right-of-way on a street or road that functions as a main artery in a subdivision, of a width of not less than 50 feet or more than 100 feet;(2) requir...
Looking for Fort Bend County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Katy city rules.
Environmental Rules in Fort Bend County →