Corona, CA Landscaping Rules: Composting (2026)

Corona Municipal Code Chapter 8.20, the solid waste chapter enacted to meet the state's SB 1383 organic-waste diversion targets, defines 'community composting' as any activity that turns green waste, agricultural material, food material, or vegetative food material into compost, so long as the feedstock and finished compost on site never exceed 100 cubic yards and 750 square feet at any one time under § 8.20.020. Above that footprint, the operation moves out of this chapter and into state solid waste facility permitting. A 'community composting operator,' the person responsible for care and control of such a site, has one specific chapter-8.20 duty: under § 8.20.390(B)(2), the operator must, within 60 days of a request from the city, supply information to support the city's organic-waste capacity planning, including an estimate of how much organic waste the site is expected to handle.

The city has the same 60-day information right over any commercial composting, in-vessel digestion, or publicly owned treatment facility that recovers organic waste, under § 8.20.390(B)(1). Corona's code does not set separate bin, setback, or odor standards for backyard or small-scale composting; § 8.20.330(J) confirms that nothing in the commercial waste-generator requirements prohibits an owner or occupant of commercial premises or a commercial business from managing organic waste on site or using a community composting site. A separate provision, § 8.20.080(E), bans composting manure from horses or livestock anywhere in the city without the administrator's written approval, a rule aimed at runoff and fire risk rather than yard or food-scrap composting.