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 12 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 2024

02 - Santa Rosa, E
09 - Sebastopol
16 - Healdsburg
23 - Larkfield
30 - Cotati

February 2024

06 - Kenwood
13 - Rincon Valley
20 - Cloverdale
27 - Santa Rosa, W *FULL*

March 2024

05 - Guerneville

12 - Sonoma

19 - Windsor

26 - Oakmont

April 2024

02 - Petaluma

09 - Santa Rosa, E

16 - Forestville

23 - Healdsburg

30 - Larkfield

May 2024

07 - Sebastopol

14 - Santa Rosa, W

21 - Cloverdale

28 - Sonoma


June 2024

04 - Rohnert Park
11 - Oakmont
18 - Windsor
25 - Bodega Bay

July 2024

02 - Santa Rosa, E
09 - Cotati
16 - Kenwood
23 - Healdsburg

30 - Monte Rio

August 2024

06 - Petaluma
13 - Santa Rosa, W
20 - Cloverdale
27 - Sonoma

September 2024

03 - Oakmont
10 - Sebastopol
17 - Windsor
24 - Larkfield

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

HHW Events in Sea Ranch

HHW Collection Events in The Sea Ranch will now be hosted by Zero Waste Sonoma instead of MendoRecycle. Available to residents of Sonoma County only, no appointment necessary.

Please check back for future Sea Ranch events.