Vacaville, CA Water Use Rules: Recycled Water Rules (2026)

27's provisions for new construction or rehabilitated landscapes. It has three operative requirements. First, the installation of recycled water irrigation systems must allow for current and future use of recycled water, meaning project applicants have to design plumbing that can accommodate a recycled-water supply even before the local purveyor extends it to the site. Second, any recycled water irrigation system actually installed must be designed and operated in accordance with all applicable local and state laws, which pulls in state Title 22 recycled-water regulations and any purple-pipe cross-connection standards the local water purveyor imposes.

020's definitions. This classification matters because it lets recycled-water turf areas, dedicated recreation areas, and edible-plant zones use more water in the maximum applied water allowance calculation than potable-irrigated landscapes of the same size. 040 must identify areas irrigated with recycled water, if any, so the Director of Community Development can verify the special landscape area classification at plan check.