Environmental Rules in Vacaville, CA (2026)
2 verified environmental rules for Vacaville, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Vacaville Municipal Code Chapter 14.26 (Stormwater Management) prohibits any discharge of non-stormwater pollutants - sediment, soaps, paint, sewage, washwater, oils - into the municipal storm drain system. Construction sites disturbing one acre or more need coverage under the State Construction General Permit and a SWPPP. Vacaville is a co-permittee under the California State Water Resources Control Board's Phase II MS4 General Permit.
Vacaville Stormwater: VMC 14.26 Discharge Prohibitions + State MS4
Some RestrictionsFlood Zones
Vacaville Municipal Code Chapter 14.18 (Flood Damage Prevention) governs construction in FEMA Special Flood Hazard Areas. Significant portions of central and east Vacaville along Alamo Creek, Ulatis Creek, Laguna Creek, and Horse Creek sit in Zone A or AE on FEMA's FIRM maps. New structures and substantial improvements in SFHAs must elevate the lowest floor at or above the Base Flood Elevation under VMC 14.18.050.
Vacaville Flood Zones: Alamo & Ulatis Creek (VMC Ch. 14.18)
Some RestrictionsLooking for Solano County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Vacaville city rules.
Environmental Rules in Solano County →