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Monterey County, CA Landscaping Rules: Composting (2026)

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

Key Facts

Definition section
Monterey County Code § 10.45.030(F)
Size cap
100 cubic yards / 750 sq ft
Alternative to
Subscribing to County organics collection
Scope
Unincorporated Monterey County only
Still subject to
Nuisance removal order, § 10.41.020(E)

Summary

Monterey County Code § 10.45.030(F) defines 'community composting' as on-site composting of green, agricultural, food and vegetative food material capped at 100 cubic yards and 750 square feet of feedstock and finished compost at any one time. Under § 10.45.040(A), unincorporated-county households can use on-site or community composting instead of subscribing to the County's organic waste collection service.

These county ordinances apply to unincorporated areas of Monterey County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

F."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 (100) cubic yards and seven hundred fifty (750) square feet, as specified in 14 CCR Section 17855(a)(4); or as otherwise defined by 14 CCR Section 18982(a)(8).

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 56).

Full Breakdown

030(F) sets the size ceiling for on-site composting activity that the chapter recognizes as 'community composting': a combined total of feedstock and finished compost on the property that never exceeds one hundred cubic yards or seven hundred fifty square feet at any one time, tracking the state limit in 14 CCR § 17855(a)(4). 9(c). for the purpose of composting' from the county's ban on letting solid waste pile up, so a compliant compost pile is not treated as an unlawful accumulation. 020(E) still lets the Director of Health order removal if the pile becomes a nuisance from odor or rodent and fly attraction, meaning the composting carve-out does not override the county's basic sanitation standard.

Violations & Fines

There is no standalone fine for composting itself; a compost pile only becomes a violation if the Director of Health finds it has grown into a nuisance under § 10.41.020(E), or if a household skips both collection subscription and any qualifying on-site or community composting arrangement in violation of § 10.45.040, which carries a $50 to $500 administrative fine under § 10.45.120 depending on repeat offenses.

Frequently Asked Questions

Is there a size limit on a backyard compost pile in unincorporated Monterey County?
Yes, if it is treated as 'community composting' under Monterey County Code § 10.45.030(F): the combined feedstock and finished compost on-site cannot exceed 100 cubic yards or 750 square feet at any one time. That threshold tracks the state limit in 14 CCR § 17855(a)(4) and lets the pile qualify as an alternative to subscribing for organic waste pickup.
Can I compost instead of paying for the county's green-waste collection service?
Yes. Section 10.45.040(A) lets a single-family generator manage organic waste on-site or through a qualifying community composting site instead of subscribing to the County's organic waste collection, as long as the material is genuinely being diverted and the pile stays within the § 10.45.030(F) size limits.
Can the county force me to remove my compost pile?
Yes, if it becomes a nuisance. Section 10.41.020(E) exempts composting from the general ban on accumulating solid waste, but the same subsection lets the Director of Health order removal once the pile starts breeding or attracting rodents or flies or creating odors that threaten public health.

Sources & Official References

Other rules in Monterey County

All Monterey County rules

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