WAITE PARK (AP) - Stearns County sheriff's officials plan to drain nearly 5 million gallons of water from a quarry as they search for a missing St. Cloud man.

Sheriff's Chief Deputy Bruce Bechtold says the family of Phillip Miller has told investigators the 30-year-old man has battled depression for many years and may have taken his own life. He has been missing since Thursday.

Bechtold says divers have been searching the quarry, but its depth and debris in the water have made it difficult. So the county will work with Coldspring, a granite company, to pump water out of the 100-foot-deep quarry and onto lower land in the park.

Co-workers at Gold Cross ambulance where Miller worked as a paramedic help search Quarry Park & Nature Reserve over the weekend.