Household Hazardous Waste (HHW) Collection Events

Every week there is an HHW Collection Event somewhere in Sonoma County.

The complete list of locations is available on our calendar. Bring your ID to prove residency.

Appointment: By appointment only: To make an appointment, call (707) 795-2025/toll-free (877) 747-1870 option 3 or email toxicsdisposal@cleanharbors.com.

Please provide the following information when calling or sending an e-mail: name, phone number, date and location of collection event, and preferred appointment time.

Appointment line staffed M-F from 8am to 2:30pm or leave a message.

Please make an appointment at least 24 hours prior to the collection event. Once the appointment request is confirmed, you will receive a confirmation with the address of the collection event. Events have a limit of 80 appointments.
Hours: Tuesdays 4-8 pm
Location: Visit our calendar for a full schedule of HHW Collection Events. The locations for the events vary and the specific site and address will be announced after you make your appointment.
Fees: No fees for Sonoma County residents.
Transportation & packing:
  • State transportation laws limit each vehicle to a maximum of 15 gallons of liquid (with a maximum of 5 gallons per container) or 125 pounds of solid material
  • Never mix chemicals
  • Place in sealed containers in the trunk, packed to prevent spills
  • Syringes/needles must be in a sealed and labeled approved container.
Not accepted:
  • Explosives or ammunition
  • Radioactive materials
  • Biological wastes (except syringes)
  • Electronics
  • Controlled substances

HHW Collection Events At A Glance

January 2020

07 - Sebastopol
14 - Santa Rosa, E
21 - Cloverdale
28 - Sonoma
February 2020

04 - Larkfield
11 - Healdsburg
18 - Rohnert Park
25 - Oakmont
March 2020

03 - Kenwood
10 - Monte Rio
17 - Santa Rosa, W
24 - Windsor
31 - Petaluma
April 2020

07 - Sebastopol
14 - Santa Rosa, E
21 - Sonoma
28 - Cloverdale


May 2020

05 - Guerneville
12 - Larkfield
19 - Cotati
26 - Oakmont

June 2020

02 - Sonoma
09 - Healdsburg
16 - Santa Rosa, W
23 - Bodega Bay
30 - Rohnert Park

HazMobile Events in Sea Ranch

MendoRecycle provides HHW collection events for Sonoma County residents in the Sea Ranch area. HazMobile events are free to households without an appointment. Small, qualifying businesses must make an appointment and pay a fee per gallon based on the types of hazardous waste. For more information or to schedule an appointment, call 707-468-9710.

Location: Sea Ranch N. Fire Station at 39225 Highway 1

Time: 9 AM- 1 PM

2020 Dates: February 21-22; April 24-25; June 26-27; August 14-15; November 20-21.