Water Use Rules in Irvine, CA (2026)
1 verified water use rules for Irvine, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Recycled Water Rules
Where a hillside development project in the San Joaquin Hills or Lomas de Santiago Hills review area requires permanent irrigation, Irvine's Hillside Overlay ordinance directs landscaped common areas to use recycled water whenever feasible and an adequate recycled-water supply exists. The rule sits inside the broader hillside grading and revegetation standards reviewed under Zoning Ordinance Section 5-4-4.
Irvine Hillside Recycled Water Landscaping
Light RestrictionsIrvine, CA, Zoning Ordinance Sec. 5-4-4.D.1
D.Landscaping.1.Where feasible, all landscaped common areas shall use recycled water when permanent irrigation is required and the supply of recycled water supply is adequate.
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