Water Use Rules in Union City, CA (2026)
2 verified water use rules for Union City, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Turf Replacement Rebates
Union City's water-efficient landscape ordinance bars new turf in non-residential and multifamily projects except recreational areas, and caps it on steep slopes, applying to permitted landscape work of 500 square feet or more.
Union City Turf Limits for Landscaped Areas
Significant RestrictionsUnion City Municipal Code § 18.112.070(A)(2)(d)-(e)
Turf is not allowed on slopes greater than 25% where the toe of the slope is adjacent to an impermeable hardscape and where 25% means one foot of vertical elevation change for every four feet of horizontal length (rise divided by run x 100 = slope percent). e. Turf is not allowed in multifamily and non-residential areas unless it is a recreational area. Turf is allowed in single-family resid...
Recycled Water Rules
Union City requires covered landscape irrigation systems to accommodate current or future recycled-water use and to meet state and local recycled-water standards, capping the water-use factor for those areas at 1.0.
Recycled Water Irrigation Rules in Union City, CA
Some RestrictionsUnion City Municipal Code § 18.112.150
A. The installation of recycled water irrigation systems shall allow for the current and future use of recycled water. B. All recycled water irrigation systems shall be designed and operated in accordance with all applicable local and State laws. C. Landscapes using recycled water are considered special landscape areas. The ET adjustment factor for special landscape areas shall not exceed 1.0.
Looking for Alameda County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Union City city rules.
Water Use Rules in Alameda County →