CAMPBELLFORD, Ont. (01/28/12) On Saturday at the Trenton River a Polar Plunge was held to help the patients of the Campbellford hospital fundraise towards getting a new Complete Blood Count Analyzer. Craig Semple, Staff Sgt OPP, Northumberland Auxiliary took his tenth and final plunge into the River, nobly jogging and looking proud. Laura Boudreau.