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 down the drain, flush down the toilet, or pour on the ground. 

Where Can I Dispose of Household Hazardous Waste?

The following facilities are open to residents of Alameda County.  No appointments are needed for residents.  Multi-family property owners must make an appointment and follow specific guidelines available at www.StopWaste.org/hhw.  


Hours of Operation

Fremont Facility

41149 Boyce Road, Fremont

Wednesdays - Fridays, 9:00 a.m. - 2:30 p.m.

Saturdays, 9:00 a.m. – 4:00 p.m.

Hayward Facility

2091 West Winton Avenue, Hayward

Fridays, 9:00 a.m. - 2:30 p.m. 

Saturdays, 9:00 a.m. – 4:00 p.m.

Livermore Facility

5584 La Ribera St, Livermore

Fridays, 9:00 a.m. - 2:30 p.m.

Saturdays, 9:00 a.m. – 4:00 p.m.

Oakland Facility

2100 East 7th Street, Oakland

Wednesdays - Fridays., 9:00 a.m. - 2:30 p.m. 

Saturdays, 9:00 a.m. – 4:00 p.m.

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.


This Location Accepts

CVSan Recycles Day Events

Every April and August

(Visit our Recycles Day page for this year’s date and materials accepted)

Canyon Middle School

19600 Cull Canyon Road, Castro Valley

Paint: 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. Visit our Recycles Day page for a complete list.

Garden: sprays, fertilizers, ant traps, pesticides, herbicides, rat poison, and gopher bait.

Miscellaneous: pool chemicals, photo chemicals, acids & caustics, household batteries, bleach & cleaners, and fluorescent bulbs.

Kelly Moore

3090 Castro Valley Boulevard, Castro Valley



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). 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 1-888-266-0550 for further guidance. 

For more information on thermostat recycling, please visit www.thermostat-recycle.org

Pete’s Ace Hardware

2569 Castro Valley Boulevard, Castro Valley 

Fluorescent Bulbs and Batteries

Please drop off only during normal business hours.  If you have large quantities of bulbs, place them in a box.