Chino, CA Landscaping Rules: Rainwater Harvesting (2026)
Key Facts
- Retention window
- 24-hour capacity required
- Applies
- new landscape ≥500 sq. ft.
- Applies
- rehab landscape ≥2,500 sq. ft.
- Plan must show
- rain-harvesting locations
- Adopted
- Ord. 2015-008; amended Ord. 2016-005
Summary
New and rehabilitated Chino landscape projects must build in stormwater practices that hold twenty-four hours of runoff on site, boosting infiltration and water quality under the city's landscaping chapter.
A.Stormwater management and rainwater retention.1.The applicant shall incorporate twenty-four-hour retention or infiltration capacity of stormwater management practices into the project design that minimize runoff, increase on-site rainwater retention and infiltration, and improve water quality as necessary to comply with applicable stormwater regulations.2.The applicant is encouraged to incorporate stormwater management practices into the project design that minimize runoff, increase on-site infiltration, and improve water quality if not specifically required by stormwater regulations.3.All planted landscape areas are required to have friable soil to maximize water retention and infiltration as noted in section 20.19.040.B.3.B.Minimum on-site planting requirements.1.General requirements.a.Trees shall not be placed where they interfere with site drainage or require frequent pruning in order to avoid interference with overhead utilities.b.Trees should be grouped together to simulate natural tree stands. A design that places trees in a linear or symmetric pattern is not encouraged, with the exception of street trees.c.When more than ten trees are to be planted to meet the requirements of this chapter, a mix of tree sizes shall be provided as specified by Table 20.19-1 (Minimum Tree Size Mix). Table 20.19-1 MINIMUM TREE SIZE MIX
Minimum Percent Mix of Required Trees Size 10% 36-inch box or larger 40% 24-inch box 50% 15-gallon
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 38).
Full Breakdown
Chino Municipal Code § 20.19.040(A)(1) requires landscape projects covered by Chapter 20.19, generally new landscaping of 500 square feet or more, or larger rehab projects, under § 20.19.020(A), to incorporate 24-hour retention or infiltration capacity into the project design, minimizing runoff and improving water quality as required by applicable stormwater regulations. The landscape documentation package required under § 20.19.030(D)(9) must show the location of any rain-harvesting or catchment technology used. Section 20.19.020(A)(4) goes further: a lot under 2,500 square feet of landscape that meets its entire water need with stored rainwater or graywater captured on site is exempt from most of the chapter.
Violations & Fines
A landscape design that omits the required 24-hour on-site retention or infiltration capacity, or a documentation package that fails to show rain-harvesting technology locations, doesn't clear plan-check review by the director of community development.
Frequently Asked Questions
Does Chino require rainwater harvesting for every yard?
Can capturing rainwater reduce other Chino landscaping requirements?
Sources & Official References
Other rules in Chino
California rules heatmap·Compare Chino to another location·View the California landscaping rules overview
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Rainwater Harvesting in Nearby Cities
How other cities in San Bernardino County handle rainwater harvesting.