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: **NEW** Online appointment system is now available! Simply find the event table below, click on the event that you'd like to attend, and follow the prompt! (Links will be provided 2 months in advance.)

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.
Contact:Office: (707) 795-2025
Toll-free: (877) 747-1870 option 3
Text: (707) 364-6927.
Email toxicsdisposal@cleanharbors.com.
Phone line staffed M-F from 8am to 2:30pm or leave a message with your name and phone number.
Event hours: Tuesdays 4P-8P
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
  • Sharps/needles must be in a sealed and labeled approved container.
Not accepted:
  • Explosives or ammunition
  • Radioactive materials
  • Biological wastes (except syringes)
  • Electronics
  • Controlled substances
COVID-19 rules:

For the safety of our staff, follow COVID-19 rules at collection events:

1. Remain in vehicle at all times. Crack window in order to talk to collection event staff.

2. Place materials in trunk of car, not on seats.

3. Everyone in vehicle must wear a mask that covers their nose and mouth.

1 IG template COVID HHW
2 IG template COVID HHW
3 IG template COVID HHW

HHW Collection Events At A Glance

Click on an event below to schedule an online appointment.

August 2021

03 - Sebastopol
10 - Windsor
17 - Larkfield
24 - Sonoma
31 - Cotati

September 2021

07 - Santa Rosa, W
14 - Healdsburg
21 - Kenwood
28 - Oakmont *FULL*

October 2021

05 - Forestville
12 - Cloverdale *FULL*
19 - Santa Rosa
26 - Rohnert Park

November 2021

02 - Sonoma *FULL*
09 - Santa Rosa, W
16 - Guerneville
23 - No Event
30 - Windsor *FULL*

December 2021

07 - Oakmont *FULL*
14 - Petaluma

21 - No Event
28 - No Event

January 2022

04 - Sebastopol

11 - Larkfield

18 - Cloverdale

25 - Boyes Hot Springs
February 2022

01 - Santa Rosa

08 - Healdsburg *FULL*
15 - Cotati

22 - Santa Rosa, W

March 2022

01 - Kenwood

08 - Monte Rio

15 - Oakmont

22 - Windsor

29 - Petaluma

April 2022

05 - Sebastopol

12 - Larkfield

19 - Sonoma

26 - Cloverdale

Events are subject to change due to COVID-19 or natural disasters.

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 while small, qualifying businesses are required to pay a fee per gallon based on the types of hazardous waste. Appointments are now required for both residents and businesses. 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

2022 Dates: February 18-19; May 20-21; August 19-20; November 18-19.