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

May 2019

7 - Guerneville
14 - Larkfield
21 - Cotati
28 - Oakmont



June 2019

4 - Sonoma
11 - Healdsburg
18 - Santa Rosa, W
25 - Bodega Bay

July 2019

2 - Rohnert Park
9 - Santa Rosa, E
16 - Boyes Hot Springs
23 - Cloverdale
30 - Rincon Valley
August 2019

6 - Sebastopol
13 - Windsor
20 - Oakmont
27 - Sonoma

September 2019

3 - Petaluma
10 - Santa Rosa, W
17 - Healdsburg
24 - Kenwood

October 2019

1 - Larkfield
8 - Forestville
15 - Cloverdale
22 - Santa Rosa, E
29 - Cotati**CANCELLED**
November 2019

5 - Sonoma
12 - Oakmont
19 - Guerneville

December 2019

3 - Windsor
10 - Santa Rosa, W
17 - Petaluma

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

Dates: February 22-23, 2019; April 26-27, 2019; June 21-22, 2019; August 16-17, 2019; November 15-16, 2019.