Household Hazardous Waste

What is Household Hazardous Waste?
Household Hazardous Waste (HHW) is a term used to identify products which no longer have a use that can catch fire or react, are toxic, corrosive, explosive, or persistent compounds.  Some examples of HHW include motor oil, drain cleaner, paint (oil and latex), poisons, pesticides, fluorescent light bulbs (tubes and compact fluorescent lights), consumer electronics (televisions, computers, cell phones, and tablets), and much more.
It is illegal in California to dispose of HHW in the garbage, pour it down the drain, flush it down the toilet, or pour it on the ground.

Where Can I Dispose of Household Hazardous Waste?
The following facilities are open to residents of Alameda County. For updated hours and appointment requirements, visit

Fremont Facility
41149 Boyce Road, Fremont
Hayward Facility
2091 West Winton Avenue, Hayward
Livermore Facility
5584 La Ribera St, Livermore
Oakland Facility
2100 East 7th Street, Oakland

Along with the Alameda County Household Hazardous Waste facilities listed above, there are also Castro Valley locations that accept some types of household hazardous waste.

Location This Location Accepts
CVSan Recycles Day Events
Every summer
Canyon Middle School
19600 Cull Canyon Road, Castro Valley

Please note: Events are by Appointment Only
Complete list available at
 stain, shellac, solvents, thinners, additives (see below), oil paint, and latex paint.
Adhesives: putty, caulk, epoxy, mortar, stucco, cement, and wood glue.
Auto: fuel, waxes, batteries, additives, motor oil filters, and coolant/antifreeze.
E-Waste: computers, TVs, radios, printers, electronic devices having significant circuit boards. 
Garden: sprays, fertilizers, ant traps, pesticides, herbicides, rat poison, and gopher bait.
Pharmaceuticals: Prescription/non-prescription drugs, sharps in approved sharps containers, One free sharps container per resident available at CVSan offices.
Miscellaneous: pool chemicals, photo chemicals, acids & caustics, household batteries, bleach & cleaners, and fluorescent bulbs.
Kelly Moore
3090 Castro Valley Boulevard,
Castro Valley
Paint: Interior and exterior architectural paint sold in containers of 5 gallons or less will be accepted (latex, acrylic, water-based, oil-based, enamel, deck coatings, primers, sealers, stains, shellacs, lacquers, varnishes, swimming pool paints, metal coatings, and rust preventatives). Up to ten gallons per customer per day accepted. Both new and old paint can be dropped off, even if it is over 20 years old. Residents, trade painters, contractors, and businesses (that produce less than 27 gallons of hazardous waste per month) are eligible to participate. 
21040 Marshall Street, Castro Valley
Wall Mounted, Mercury-Switch Thermostats: Please recycle the entire thermostat and do not remove the mercury switch or cover. If you have mercury switches that have been removed from thermostats, contact the Thermostat Recycling Corporation at (888) 266-0550 for further guidance.  For more information on thermostat recycling, please visit
Pete’s Ace Hardware
2569 Castro Valley Boulevard,
Castro Valley
Fluorescent Bulbs and Batteries: Up to eight bulbs per resident are accepted during normal business hours.  Large quantities of bulbs should be placed in a box.
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