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Rohnert Park, CA Landscaping Rules: Composting (2026)

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

Key Facts

On-site composting allowed
instead of curbside cart, § 8.12.040(H)
Community composting cap
100 cubic yards / 750 sq ft on-site, § 8.12.010
Feeding animals allowed
if premises kept sanitary, § 8.12.040(G)
Reporting duty
respond to city/county within 60 days, § 8.12.130

Summary

Rohnert Park residents may compost food scraps and yard trimmings on-site instead of sending them to the curb, under Municipal Code Section 8.12.040(H), as long as the operation follows CalRecycle and local health rules. A 'community composting' operation is capped by Section 8.12.010 at one hundred cubic yards and 750 square feet of material on-site at once.

"Community composting" means any activity that composts green material, agricultural material, food material, and vegetative food material, alone or in combination, and the total amount of feedstock and compost on-site at any one time does not exceed one hundred cubic yards and seven hundred fifty square feet, as specified in 14 CCR Section 17855(a)(4). ... H.Organic materials may be used in on-site composting, community composting, or other composting operation, provided that such operation conforms to the applicable regulations of those entities governing the same now in force or which thereafter may be enacted or promulgated, including regulations related to land use, permitting and operation regulations regarding composting facilities of CalRecycle, and any other regulations of applicable health authorities.

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 51 Update 2).

Full Breakdown

040(H) of the Solid Waste and Edible Food Recovery chapter lets any generator use on-site composting, community composting, or another composting operation for organic material instead of the curbside organics cart, but only if the operation conforms to applicable land use, permitting and health rules, including CalRecycle's composting facility regulations. 040(G) allows feeding organic material to animals kept on the premises, provided the premises stays sanitary to the city manager's satisfaction and any animal-keeping rules elsewhere in the code are followed. 010 caps what counts as 'community composting' at a total of one hundred cubic yards of feedstock and finished compost, and no more than seven hundred fifty square feet of area, on-site at any one time; a bigger operation moves outside that definition and into full solid waste facility regulation. 130, so the agencies can plan for organics processing capacity across the county.

Violations & Fines

Composting that exceeds the community composting size limits in Section 8.12.010, or that is not sanitary or otherwise fails to conform to CalRecycle and land use rules under Section 8.12.040(H), loses its exemption from the curbside organics requirement and is treated as noncompliance with Chapter 8.12, subject to the chapter's infraction and administrative fine schedule under Section 8.12.170, up to $500 for repeat violations.

Frequently Asked Questions

Can I compost food scraps in my backyard instead of using the organics cart in Rohnert Park?
Yes. Section 8.12.040(H) of the Municipal Code lets you use on-site composting for organic material instead of the curbside organics container, as long as the composting operation follows applicable land use, permitting and health rules, including CalRecycle's regulations for composting facilities.
Is there a size limit on a neighborhood composting site in Rohnert Park?
Yes. Section 8.12.010 defines 'community composting' as an operation where the total feedstock and finished compost on-site at one time does not exceed one hundred cubic yards and seven hundred fifty square feet. Exceed that and the operation falls outside the community composting definition and into full solid waste facility rules.
Do backyard composters have to report anything to the city?
Only operators of a composting facility or community composting operation, not an individual backyard bin. Section 8.12.130 requires those operators to respond within sixty days if the city or the Sonoma County Waste Management Agency asks for information on their available or potential composting capacity.

Sources & Official References

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