Water Use Rules in Alameda County, CA (2026)
1 county-level rule, plus city-specific rules for 4 cities in Alameda County, California.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Alameda County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Recycled Water Rules
Alameda County's water-efficient landscape ordinance gives areas irrigated with recycled water a looser water budget, an ET adjustment factor up to 1.0, versus the standard 0.7, to encourage using it over potable water.
Recycled Water Rules in Alameda County
Light RestrictionsAlameda County Code § 17.64.040
"Recycled water" means treated or recycled waste water of a quality suitable for non-potable uses such as landscape irrigation and water features. This water is not intended for human consumption. ... Special landscape areas, including recreation areas, areas permanently and solely dedicated to edible plants such as orchards and vegetable gardens, and areas irrigated with recycled water are sub...
Water Use Rules by City in Alameda County
4 cities in Alameda County have their own water use rules rules. Each link goes to that city's dedicated page with code citations.
All Alameda County ordinances
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