Woman nearly drowns after jumping off pontoon boat HAMLIN TOWNSHIP — A 30-year-old Ypsilanti woman who jumped off a pontoon into Hamlin Lake nearly drowned Saturday, Aug. 19, around 3:45 p.m., according to Mason County Sheriff Kim Cole. The woman jumped into water 20 feet deep and was in distress. Emergency crews from Hamlin Township Fire Department, Life EMS and…