RedactedNarrative: Unit 1 was drifting on Lake Hartwell.  Operator stepped on the back deck of Unit 1 and his feet slipped from under him.  When he fell he landed on the cleat of Unit 1.  The cleat punctured him on his right shoulder near his scapula, impaling him.  He estimated to be stuck on the cleat for 30 minutes.  Witnesses were unable to free him from the cleat.  Oconee County EMS arrived and were able to free him from the cleat.  He was then transported to Oconee Memorial Hospital.