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Zero Waste Sonoma Household Hazardous Waste Facility
500 Mecham Rd., Petaluma, CA
Note: The published contact is a Clean Harbors phone and toxicsdisposal@cleanharbors.com address for this Zero Waste Sonoma facility.
Call ahead. Hours, fees, residency rules, appointments and accepted materials change. Check the official page or call before you go. Never mix chemicals, and keep products in their original containers. Open the official source page.
Details
- Type
- Permanent drop-off
- Address
- 500 Mecham Rd., Petaluma, CA (no map pin yet — we have not confirmed this site's exact position)
- County
- Sonoma County
- Hours
- Thursday, Friday and Saturday, 7:30 a.m.–2:30 p.m. Closed December 20, 2026, through January 4, 2027, and on New Year’s Day, July 4, Labor Day, Thanksgiving and Christmas.
- Season
- Closed December 20, 2026, through January 4, 2027.
- Accepted
- Household chemicals & cleaners; Paint; Other household hazardous waste
The Zero Waste Sonoma page points to a common-examples list and says 20-pound BBQ and 1-pound propane cylinders are accepted. Electronics are collected at transfer-station e-waste areas, not at this HHW building. - Not accepted
- Explosives or ammunition; Radioactive materials; Biological or medical wastes except syringes; Controlled substances; Electronics; Compressed gas cylinders other than 20-pound BBQ and 1-pound propane cylinders; Pressure-treated wood or treated wood waste
- Limits
- Maximum of 15 gallons of liquid (containers count by size, not contents, and may not exceed 5 gallons each) or 125 pounds of solid material.
- Appointment
- Not stated in our source.
- Who can use it
- Sonoma County residents. Bring ID to prove residency.
- Fees
- Free drop-off for Sonoma County residents. No appointment required.
- Phone
- 707-795-2025
- Notes
- At the Central Disposal Site, Building 5. The agency also describes Tuesday collection events whose exact locations are given after an appointment, and a Wednesday HHW Rover home-pickup service; those were not added as separate listings from this page.
Source: Zero Waste Sonoma
Last checked: — Read directly from the official source page on 2026-11-09: confirmed the household hazardous waste service, address, phone, hours, fees, accepted materials, residency/ID rules, quantity limits, season; other fields not re-checked.
Source and reuse terms: Public government information (facts); linked to the official source page
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