Household Toxics Disposal

Located at the Central Disposal Site (Building 5, 500 Mecham Road, Petaluma), the Household Hazardous Waste (HHW) Facility is open every week for free drop-off of toxics from Sonoma County residents. Bring your ID to prove residency.

Appointment: Not required

Hours: Thursday, Friday & Saturday, 7:30 am-2:30 pm.

Please note that the HHW Facility will be closed December 23, 2019 - January 6, 2020.

Facility is also closed on the following holidays:

  • New Years Day
  • July 4th
  • Labor Day
  • Thanksgiving Day
  • Christmas Day

Clean Harbors


Providing comprehensive environmental, energy and industrial services.