Household Hazardous Waste Program
The HHW Collection Facility
is open year-round every Thursday, Friday and Saturday
at the San Mateo facility (except major holiday weekends). Additional collections are held in several other locations throughout the county. Make an appointment for any collection that is most convenient for you. This drop-off disposal service is for
household hazardous waste from county residents.
Paint, paint thinner, varnish, and stain;
Garden, swimming pool, and hobby chemicals;
Household cleaning products and aerosol spray cans;
Fluorescent tubes, propane tanks, and automotive products (gasoline);
Thermometers and other mercury wastes;
have Latex paint, antifreeze, motor oil, oil filters, automotive batteries, household batteries, or fluorescent tubes, you can check our list of
for a location nearest you.
Residential fire extinguishers may be discharged into the regular trash, and then recycled as a plastic or metal container, or you may bring them into the program by appointment for recycling.
Wastes Not Accepted
Compressed Gas Cylinders (except propane up to 5 gallons in size)
Any waste in a container larger than five (5) gallons.
*For information on reuse or recycling of these items please visit
For disposal of all other items please contact our office at
Medical Waste Disposal Information
Very Small Quantity Generator (VSQG) Business Collection Program.
Contact us at
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