Household Hazardous Waste Collection Facility
Household Hazardous Waste Collection Facility
Hazardous waste generated by residents and businesses can reach our waterways through runoff, sanitary sewers, storm drains, landfills, and can pollute our local water environment. The Household Hazardous Waste (HHW) Collection Facility helps prevent this pollution through reuse, recycling, and proper disposal of hazardous waste.
Residents may drop off household hazardous waste at no charge, with no appointment needed.
Small businesses must schedule an appointment and pay a small fee to dispose of their hazardous waste. Learn more and schedule an appointment.
Opening Days and Hours
Located at 4797 Imhoff Place in Martinez, our HHW Collection Facility is open with modified operations to protect the health and safety of our customers and employees. Please be aware of possible service delays as we are operating in a different manner to keep the health and safety of our employees, our customers, and our community as our highest priority.
When the air quality index exceeds healthy standards due to wildfire smoke, we may shut down operations to maintain employee and customer safety. This page will be updated to reflect these closures.
HHW
- Residents – no appointment needed
- Businesses by appointment only
Monday – Saturday, 7 a.m. – 2 p.m. (see Hours & Directions for holiday closures)
Recycled Water Fill Station
Monday – Saturday, 7 a.m. – 2 p.m.
Reuse Room
Monday – Saturday, 7 a.m. – 1:30 p.m.
Step-by-Step: How to Drop off Your Waste
- We can accept up to 15 gallons or 125 pounds of hazardous waste per visit, in containers no larger than five gallons.
- Before visiting the HHW facility, place your waste in the trunk or hatchback of your vehicle or the bed of your truck. HHW staff will not collect waste that is in the front or back seat.
- Face coverings and social distancing are required at all times while visiting the HHW facility, including while you are in your vehicle.
- HHW staff will retrieve the waste from your vehicle. Please remain in your vehicle unless staff ask you to exit the vehicle to open or close the trunk or tailgate.
Packing and Transport
Please follow these guidelines when preparing to drop off HHW at the facility:
What’s Acceptable?
Hazardous Wastes ACCEPTED at the HHW Collection Facility
For a listing of what is accepted at the HHW Collection Facility, click here.
Eligible Communities
Alamo, Blackhawk, Clayton, Concord, Clyde, Danville, Lafayette, Martinez, Moraga, Orinda, Pacheco, Pleasant Hill, San Ramon, Walnut Creek, and other Central County unincorporated areas within the Central San service area.
Hazardous Waste Disposal for Small Businesses
Below you will find the information and instructions for the Conditionally Exempt Small Quantity Generator Program.
Eligible Businesses
Non-profit groups, landlords, condo operators, contractors, small businesses and any other organization or commercial entity that meets the following criteria:
What do I do with … ?
Are you looking for a way to reuse, recycle, or dispose of something other than household hazardous waste? Give the RE:Source online guide a try.
Pharmaceutical Disposal Program
Central San developed its Pharmaceutical Disposal Program by partnering with the Sheriff’s Department and eight local police departments in central Contra Costa County. Households may use any of the collection sites to safely dispose of unwanted or expired medications. These sites are open to all county residents Monday through Friday, from 8:00 a.m. to 5:00 p.m.