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

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

Key Facts

Trigger
Subdivision inside City-Designated Water Reuse Area
Requirement
Separate recycled-water plumbing for common areas
Water supplier
East Bay Municipal Utility District (EBMUD)
Exemption authority
City Engineer
Original ordinance
Ord. No. 2876 N.S.

Summary

New subdivisions inside a City-Designated Water Reuse Area must use EBMUD recycled water for common-area irrigation and install a separate plumbing system for it, under Municipal Code Section 30-57.5. The City Engineer can exempt a project if recycled water use is technically infeasible or not economically justified.

New industrial, commercial or residential subdivisions that are within the City-Designated Water Reuse Area for which a tentative map or parcel map is required, shall use recycled water provided by EBMUD, and have a separate plumbing system to serve recycled water uses in the common areas of the subdivision, including, but not limited to, golf courses, parks, greenbelts, and landscaped medians. This system must be independent of the provided plumbing system serving the domestic, residential, and other potable uses in the subdivision.

View 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 74).

Full Breakdown

Alameda's Water Reuse Ordinance, codified at Section 30-57 and originally adopted by Ordinance No. , ties the City's recycled-water program to the East Bay Municipal Utility District's (EBMUD) service areas. 4 provides that any EBMUD Designated Water Reuse Area automatically becomes the City-Designated Water Reuse Area unless the City Council specifically narrows it, and the City keeps the boundary descriptions on file with the Public Works Department. 5, Development Applications, sets the operative mandate: new industrial, commercial or residential subdivisions that are within the City-Designated Water Reuse Area for which a tentative map or parcel map is required shall use recycled water provided by EBMUD, and have a separate plumbing system to serve recycled water uses in the common areas of the subdivision, including golf courses, parks, greenbelts, and landscaped medians.

That dual-plumbing system has to stay fully independent of the potable water system serving homes and businesses in the subdivision. 6 requires a written agreement between that supplier and EBMUD before service can begin. 7 gives the City Engineer discretion to exempt a qualifying subdivision from the recycled-water mandate if an alternative higher or better use exists, the recycled-water use isn't economically justified, or it's technically infeasible, but any such exemption must be reported to the Planning Board and City Council.

Violations & Fines

A qualifying subdivision that skips the required recycled-water plumbing without an approved Section 30-57.7 exemption does not get its tentative or parcel map approved, since the dual-system requirement attaches directly to that map-approval process. The City Engineer, not the developer, decides whether an exemption applies, and any exemption granted must be reported to the Planning Board and City Council.

Frequently Asked Questions

Do new subdivisions in Alameda have to use recycled water?
Only if they're inside a City-Designated Water Reuse Area, which mirrors the areas EBMUD has designated for recycled-water service. Section 30-57.5 requires those subdivisions to use EBMUD recycled water for common areas like parks, greenbelts, and medians, through a plumbing system kept separate from the potable water system.
Can a developer skip Alameda's recycled water requirement?
Only with an exemption from the City Engineer under Section 30-57.7, granted when there's a higher or better use for the recycled water, the requirement isn't economically justified, or it's technically infeasible. Any exemption the City Engineer grants must be reported to the Planning Board and City Council.
Who provides the recycled water in Alameda's designated reuse areas?
EBMUD, the East Bay Municipal Utility District, is the designated supplier under Section 30-57.2. If a private utility or other public agency is instead used to deliver the water, Section 30-57.6 requires a written agreement between that supplier and EBMUD before service can start.

Sources & Official References

Other rules in Alameda

All Alameda rules

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