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.
  • While visiting the HHW facility, remain in your vehicle at all times.
Not accepted:
  • Explosives or ammunition
  • Radioactive materials
  • Biological wastes (except syringes)
  • Electronics
  • Controlled substances

HHW Collection Events At A Glance

Click on an event below to schedule an online appointment

January 2023

03 - Sebastopol
10 - Santa Rosa, W

17 - Cloverdale

24 - Sonoma *FULL*
31 - Santa Rosa, E *FULL*

February 2023

07 - Healdsburg *FULL*
14 - Cotati

21 - Larkfield

28 - Kenwood

March 2023

07 - Monte Rio

14 - Oakmont

21 - Windsor

28 - Petaluma

April 2023

04 - Sebastopol
11 - Santa Rosa, W
18 - Sonoma
25 - Cloverdale

May 2023

02 - Guerneville
09 - Santa Rosa, E
16 - Rohnert Park
23 - Windsor
30 - Kenwood

June 2023

06 - Oakmont
13 - Bodega Bay
20 - Larkfield
27 - Healdsburg
July 2023

04 - no event
11 - Santa Rosa, W
18 - Cloverdale
25 - Petaluma

August 2023

01 - Forestville
08 - Sonoma
15 - Rincon Valley
22 - Windsor
29 - Cotati

September 2023

05 - Santa Rosa, E
12 - Healdsburg
19 - Sebastopol
26 - Oakmont

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

2023 Dates: MendoRecycle has placed all HazMobile events on hold due to staffing. Check back for updates.