Stanislaus County, CA Landscaping Rules: Composting (2026)
Key Facts
- Community composting cap
- 100 cubic yards, 750 sq ft on site
- Backyard composting
- No permit required within the cap
- State cross-reference
- 14 CCR §§ 17855(a)(4), 18982(a)(8)
- Over-cap operations
- Need department-approved facility status
- Adopted
- Ord. CS 1315, 2022
Summary
Stanislaus County lets residents manage yard and food waste on site instead of hauling it to the curb, but caps any "community composting" operation at one hundred cubic yards of feedstock and compost and seven hundred fifty square feet on site at one time, per Section 9.02.010's definition drawn from state regulations.
"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); or, as otherwise defined by 14 CCR Section 18982(a)(8).
Full Breakdown
010 defines "community composting" as any activity that composts green material, agricultural material, food material, and vegetative food material, alone or in combination, so long as the total feedstock and finished compost on site at any one time stays under one hundred cubic yards and seven hundred fifty square feet: the same threshold set by 14 CCR Section 17855(a)(4) and 18982(a)(8). 040(C) repeats that a responsible party may manage organic waste on site or use a community composting site instead of subscribing to the county's organics collection service for that material.
Composting above the community-composting threshold, or composting materials outside the green/agricultural/food/vegetative categories the definition covers, would push an operation into the county's regulated processing-facility category under the discarded-materials ordinance, which does require department approval. The refuse chapters were adopted by Ordinance CS 1315 in 2022.
Violations & Fines
Composting handled entirely on the generator's own premises within the 100-cubic-yard/750-square-foot community-composting threshold isn't cited under the discarded-materials chapters at all. Exceed that threshold, or run an unapproved composting or processing operation that receives material from off site, and the activity falls under the county's "approved facility" and franchise/permit requirements, exposing the operator to the same $50-to-$500 tiered penalty schedule in Section 9.12.100 that applies to any other unpermitted discarded-materials activity.
Frequently Asked Questions
Do I need a county permit to compost yard waste in my backyard?
How much can I compost before I need county approval?
What materials can go in a community composting pile under county rules?
Sources & Official References
Other rules in Stanislaus County
California rules heatmap·Compare Stanislaus County to another location·View the California landscaping rules overview
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