Thanks to the partnership between Castro Valley Sanitary District (CVSan), Eden Medical Center, and the Alameda County Medication Disposal Initiative Workgroup, you can now drop off your pharmaceutical waste at Eden Medical Center for free 24 hours a day, 7 days a week.

The location of the free public collection box is:
Eden Medical Center
20103 Lake Chabot Road
Castro Valley, CA 94546

For procedures and more click here.


You can also bring expired medications to an Alameda County Household Hazardous Waste facility.

Visit our Houshold Hazardous Waste webpage for occasional local pharmaceutical take-back events.