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

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Governing section
RMC §19.570.070
Cross-referenced ordinance
Chapter 14.28, Mandatory Use of Recycled Water
Recycled-water landscapes
Classified as 'special landscape area'
ETAF cap, special landscape area
1.0 (vs. 0.55/0.45 standard)
Graywater systems must meet
Cal. Plumbing Code Title 24, Pt. 5, Ch. 16

Summary

Covered landscape projects in Riverside must design irrigation systems to allow current or future use of recycled water under RMC §19.570.070, which folds in Chapter 14.28's mandatory-use requirement by reference. Landscapes actually irrigated with recycled water get a looser water budget as a 'special landscape area.'

19.570.070 - Recycled water. 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 local and State laws.C.Chapter 14.28 - The Mandatory Use of Recycled Water is hereby incorporated by reference.D.Landscapes using recycled water are considered special landscape areas. The ET Adjustment Factor for new and existing (non-rehabilitated) special landscape areas shall not exceed 1.0.

Source: City of RiversideView official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 33).

Full Breakdown

45 (nonresidential) cap that applies to potable-irrigated landscapes. 130(B)(5). 020).

Violations & Fines

Landscape and irrigation plans for a covered project that aren't designed to accommodate recycled water where required are rejected at Planning Division plan check, and the City won't issue a Certificate of Completion under §19.570.060 until the irrigation system is installed as approved. City Charter §417 makes an uncorrected violation of the adopted landscape ordinance a misdemeanor, with a maximum penalty of a $1,000 fine, six months' imprisonment, or both.

Frequently Asked Questions

Does every new landscape in Riverside have to use recycled water?
Not necessarily, §19.570.070(A) requires the irrigation system be designed to allow for current or future recycled-water use, while Chapter 14.28's mandatory-use requirement, incorporated by reference, governs whether use is actually required based on availability and site factors.
Is graywater the same as recycled water under this code?
No. They're addressed in the same section but treated separately: recycled water refers to treated wastewater from a purveyor system, while graywater is untreated household wastewater reused on-site and must meet California Plumbing Code Title 24, Part 5, Chapter 16 standards.
Does using recycled water let me exceed the normal water budget?
Yes, within a defined limit. Recycled-water-irrigated landscapes are classified as 'special landscape areas' under §19.570.070(D), letting their ET Adjustment Factor go up to 1.0 rather than the standard 0.55 residential / 0.45 nonresidential cap.

Sources & Official References

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