Hesperia, CA Water Use Rules: Recycled Water Rules (2026)
Key Facts
- Default rule
- Recycled water required for irrigation
- Exemption
- Written city finding of unavailability
- Applies to
- New irrigation & water features
- ET adjustment factor cap
- 1.0 for recycled-water areas
Summary
New irrigation systems and decorative water features in Hesperia must use recycled water instead of potable supply, unless the city grants a written exemption for unavailability.
A.The installation of recycled water irrigation systems shall allow for the current and future us of recycled water, unless an exemption has been granted as describe in Section 16.20.642(B).B.Irrigation systems and decorative water features shall use recycled water unless a written exemption has been granted by the city stating that recycled water meeting all public health codes and standards is not available and will not be available for the foreseeable future.C.All recycled water irrigation systems shall be designed and operated in accordance with all applicable local and state laws.D.Landscapes using recycled water are considered special landscape areas. The ET adjustment factor for special landscape areas shall not exceed 1.0. (Ord. No. 2010-06, § 2(Exh. A), 8-17-10)
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 24 Update 2).
Full Breakdown
Hesperia requires new landscape irrigation to be built for recycled water use, and mandates recycled water for irrigation systems and decorative water features unless the city has issued a written exemption stating recycled water meeting public health standards isn't available and won't be for the foreseeable future. All recycled water systems must meet applicable state and local health and safety standards. Landscapes irrigated with recycled water count as 'special landscape areas' under the city's water budget calculations, capped at an ET adjustment factor of 1.0.
Violations & Fines
Installing a non-recycled-water irrigation system or water feature without a city exemption is a code violation, enforced as part of the required landscape documentation and permit review.
Frequently Asked Questions
Do I have to use recycled water for new landscaping in Hesperia?
What counts as a valid exemption?
Sources & Official References
Other rules in Hesperia
California rules heatmap·Compare Hesperia to another location·View the California water use rules overview
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Recycled Water Rules in Nearby Cities
How other cities in San Bernardino County handle recycled water rules.