Many products found in your home are potentially hazardous substances. They consist of chemical compounds that can poison, corrode, explode or ignite when not handled properly. These substances are considered household hazardous waste (HHW) and can threaten human and environmental health. For this reason, HHW is not exempt from California hazardous waste laws. It is illegal to dispose of HHW in the trash or down household and storm drains. The Household Hazardous Waste collection facility gives local residents and small businesses a convenient and environmentally safe means for HHW disposal and recycling.

Located at 4797 Imhoff Place, Martinez, CA 94553-4392

The Household Hazardous Waste (HHW) Collection Facility is open with modified operations to protect the health and safety of our customers and employees. HHW drop-off is available for residents with no appointment needed.  Please be aware of possible service delays as we are operating in a different manner in order to keep the health and safety of our employees, our customers, and our community as our highest priority.

Small business drop-off appointments are being scheduled as usual. Learn more and schedule an appointment.  Call for more information at 1-800-646-1431.

Opening Days and Hours

Monday – Saturday, 7 a.m. – 2 p.m.

• Residents – no appointment needed
• Businesses by appointment only

Recycled Water Fill Station 

Monday – Saturday, 7 a.m. – 2 p.m. 

Reuse Room

Monday – Saturday, 7 a.m. – 1:30 p.m. 

The HHW Facility is closed on the following holidays:

• 01/20/25 Martin Luther King, Jr. Day
• 02/12/25 Lincoln’s Birthday
• 02/17/25 Washington’s Birthday
• 05/26/25 Memorial Day
• 06/19/25 Juneteenth
• 07/04/25 Independence Day
• 09/01/25 Labor Day
• 11/11/25 Veterans’ Day
• 11/27/25 Thanksgiving
• 11/28/25 District Holiday
• 12/24/25 – 01/01/26 Holidays