Water Use Rules in Thousand Oaks, CA

If you live in Thousand Oaks 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. Thousand Oaks has 2 specific rules on the books covering different aspects of water use rules, and some of them might surprise you.

Leak Reporting Duty

Once the City notifies a Thousand Oaks water customer of a leak, break, or plumbing malfunction wasting water, the property owner has a hard deadline to fix it: seven days under the normal (Level 1) rule, shrinking to just 72 hours once the City Council declares a Level 2 or higher water-supply shortage. Continuing to lose water past that window is itself an ordinance violation, separate from the underlying plumbing problem.

Key details: Repair deadline (normal conditions): 7 days from when the leak was/should have been discovered or after City notice. Repair deadline (Level 2+ shortage): 72 hours from notice. Billing relief: One-time per-account high-usage credit available under § 10-2.906(d), but only after the leak is fixed. Enforcement: Fines, public-nuisance citation, flow restrictor, or disconnection for repeat/willful cases.

Failure to fix the leak within the applicable window is treated as prohibited water waste under Article 11 and enforced the same as any other water-use violation under § 10-2.1103: prosecution and fines under Title 1, Chapter 2 of the Municipal Code, a public-nuisance designation under TOMC § 1-6.01, mandatory installation of a water flow restrictor for repeat violations, and possible service disconnection for continued willful noncompliance, all at the customer's cost.

Turf Replacement Rebates

Thousand Oaks bans irrigating purely ornamental turf on commercial, industrial and institutional properties under TOMC § 10-2.1104(l). Non-functional grass irrigation on CII sites is prohibited outright, and an owner who wants to keep watering ornamental turf must apply to the water purveyor for a functional-turf waiver. Turf shown on filed CII landscape plans can instead be swapped for mulch or other permeable, climate-appropriate ground cover.

Key details: Section: TOMC § 10-2.1104(l). Applies to: CII (commercial/industrial/institutional) turf. Non-functional turf irrigation: Prohibited outright. Waiver required: To irrigate turf as 'functional'. Replacement options: Mulch, permeable ground cover.

Sec. 10-2.1103 makes any Article 11 violation, including unauthorized non-functional turf irrigation, prosecutable under Title 1, Chapter 2, Articles 1 and 2, with each day of continued watering a separate offense, and it also brands the violation a public nuisance under Sec. 1-6.01. The water purveyor enforces first; if it fails to act, the City steps in. Repeat violations can bring a mandatory flow restrictor, and continued willful violations can lead to service disconnection, both billed to the property owner.

The Bottom Line

Thousand Oaks'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 Thousand Oaks is broadly strict or permissive.

All of the above reflects Thousand Oaks'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.