The Household Hazardous Waste (HHW) Program provided by San Mateo County helps residents dispose of/recycle their residential hazardous waste properly – for FREE!  County residents may drop off a full range of HHW at collection facilities and events year-round every Thursday, Friday, and Saturday (except major holiday weekends).

All waste collected is either reused, recycled, processed for energy recovery, or stabilized for proper disposal to achieve zero waste being landfilled.

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There are two easy and free options to safely dispose of your used motor oil and filters together.  

Stay updated on used motor oil & filter recycling information and locations.