The next National Prescription Drug Take Back Day is Saturday, October 28, 2017, from 10:00 AM to 2:00 PM.
Your collection site in Kensington is:
Public Safety Building (Police/Fire)
217 Arlington Ave.
Kensington, CA 94707
A printable handout is available here.
Search for additional take-back locations on the DOJ/DEA Website.
General information for drug disposal can be found here.