Manteca, CA Water Use Rules: Recycled Water Rules (2026)
Key Facts
- Requirement
- Design irrigation for recycled water
- Compliance
- Must follow state and local water law
- ET factor cap
- 1.0 for recycled-water landscapes
- Applies to
- New development, qualifying remodels
Summary
Manteca's landscape irrigation standards direct new and qualifying-renovation irrigation systems to be designed to use recycled water, operated under state and local recycled-water law.
Irrigation systems shall be designed to utilize recycled water. All recycled water irrigation systems shall be designed and operated in accordance with all applicable local and state laws.
Full Breakdown
Manteca Municipal Code § 17.48.040(H) sets irrigation design standards for projects that trigger a landscape plan under § 17.48.020. Subsection (H)(4) requires irrigation systems to be designed to utilize recycled water, and (H)(5) requires any recycled-water irrigation system to be designed and operated in compliance with all applicable local and state law. Landscapes irrigated with recycled water are treated as 'special landscape areas' under (H)(6), which caps their evapotranspiration adjustment factor at 1.0 rather than the tighter water budget applied to potable-water landscaping. The rule sits alongside separate requirements for rain shut-off devices and head-to-head sprinkler coverage.
Violations & Fines
A landscape plan that doesn't design for recycled water use can be rejected at the Planning Department's plan-review stage, delaying the Landscape Certificate of Completion needed for occupancy.
Frequently Asked Questions
Does every yard in Manteca have to use recycled water?
What law governs the recycled water itself?
Sources & Official References
Other rules in Manteca
California rules heatmap·Compare Manteca 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 Joaquin County handle recycled water rules.