Residents who need to dispose of unused or expired medications can do so Saturday at several area police departments and transfer stations, according to a news release from Healthy Communities of the Capital Area.

The event, which is held twice a year, is designed “to encourage residents to safely and responsibly dispose” of medications. Last year in April, more than 1.5 tons of medications were collected in Kennebec County.

Unused drugs, particularly opiates, can be stolen or abused by heroin users and they pose an environmental problem, according to the release.

Drug Take Back Day is set for 10 a.m. to 2 p.m. Saturday at the following locations:

Police departments: Augusta, Fairfield, Hallowell, Gardiner, Winthrop, Monmouth, Oakland, Waterville, Winslow

Transfer stations: Belgrade, China, Litchfield, Readfield

Residents who cannot travel can call the Kennebec County Sheriff’s Office at 624-7076 and a deputy will pick up the drugs.