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: 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 8A to 2:30P 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. Measured by container size, not contents. 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 2025

07 - Santa Rosa, E *FULL*
14 - Sebastopol
21 - Healdsburg
28 - Larkfield *FULL*

February 2025

04 - Cotati
11 - Kenwood
18 - Rincon Valley
25 - Cloverdale

March 2025

04 - Santa Rosa, W
11 - Guerneville
18 - Sonoma
25 - Windsor *FULL*

April 2025

01 - Oakmont *FULL*
08 - Petaluma
15 - Santa Rosa *FULL*
22 - Forestville
29 - Healdsburg

May 2025

06 - Larkfield
13 - Sebastopol
20 - Cloverdale
27 - Santa Rosa, W

June 2025

03 - Sonoma
10 - Rohnert Park
17 - Oakmont
24 - Windsor

July 2025

01 - Bodega Bay
08 - Santa Rosa, E
15 - Kenwood
22 - Healdsburg
29 - Santa Rosa, W

August 2025

05 - Monte Rio
12 - Petaluma
19 - Larkfield
26 - Cloverdale

September 2025

02 - Sonoma
09 - Oakmont
16 - Sebastopol
23 - Windsor
30 - Rohnert Park

Events are subject to change due to COVID 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 and appointments are required to prevent highway disruption.

Next event: Saturday, November 1, 2025 9A-1P