Water Use Rules in Vacaville, CA

If you live in Vacaville or are thinking about moving there, water use rules are one of those things you probably won't think about until they affect you directly. Vacaville has 3 specific rules on the books covering different aspects of water use rules, and some of them might surprise you.

Leak Reporting Duty

Vacaville water customers must fix plumbing or irrigation leaks promptly once discovered; the city treats up to 24 hours as a reasonable window, and letting a break run longer counts as prohibited water waste enforceable with escalating fines.

Key details: Reasonable repair window: 24 hours after discovery. Enforcing office: Director of Utilities. 2nd violation fine: $100. 3rd violation fine: $200. 4th+ violation fine: $500 each.

First offense: courtesy notice only. Second violation in 12 months: $100 fine. Third: $200. Fourth and beyond: $500 each, plus possible flow-restrictor installation (up to one year) or service disconnection (up to 15 days) and liability for the city's abatement and enforcement costs, including attorney's fees if injunctive relief is sought.

Turf Replacement Rebates

Vacaville is phasing out potable-water irrigation of purely decorative "nonfunctional" turf on commercial, industrial, institutional and HOA common-area properties, forcing those parcels to convert to climate-appropriate landscaping by fixed 2027-2029 deadlines.

Key details: State/local govt. properties deadline: January 1, 2027. Commercial/industrial/institutional deadline: January 1, 2028. HOA/CID common areas deadline: January 1, 2029. Disadvantaged-community public property: January 1, 2031 (or later). Postponement authority: State Water Resources Control Board, up to 3 years.

A property owner who irrigates nonfunctional turf with potable water past its applicable 2027, 2028, 2029 or 2031 deadline is in violation of § 13.20.070 and subject to the Chapter 13.20 enforcement ladder in § 13.20.030: a courtesy notice for a first offense, then escalating administrative fines of $100, $200, and $500 for repeat violations within a year, plus possible flow restriction or service disconnection.

This is one of the stricter rules in Vacaville's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

Recycled Water Rules

Vacaville requires new and rehabilitated landscape irrigation systems to be built ready for recycled water use, treats recycled-water landscapes as special landscape areas, and caps their water-budget adjustment factor at 1.0 under City Code Section 14.27.030.130.

Key details: Governing section: VMC § 14.27.030.130. Design mandate: Systems must allow future recycled water use. Compliance standard: Must follow all applicable local/state recycled-water law. ETAF cap for recycled-water areas: 1.0 (special landscape area). Standard residential ETAF cap: 0.55.

Recycled water design failures are enforced the same way as the rest of Chapter 14.27: violations trigger the general penalty provisions of Vacaville Municipal Code Chapter 1.16 under Section 14.27.030.030, plus any other remedy available at law. A project that installs a system unable to accept future recycled water, or that operates a recycled-water system out of compliance with state and local recycled-water law, is out of compliance with Section 14.27.030.130 and can be held up at the landscape documentation package review stage.

The Bottom Line

Vacaville's water use rules rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Vacaville is broadly strict or permissive.

All of the above reflects Vacaville's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.