RedactedNarrative: On 6/19 at approx. 4 pm the operator of unit was was drifting outside of the swim area of Monticello Recreational Lake Beach in Fairfield County. During this time the operator of unit one fell overboard into the water. The operator then began to struggle to keep his head above water.  After struggle to swim the operator went under and did not resurface. On 6/21 the SCDNR A.I.R.  recovered the operator apprx. 70 yards from the swim area. No required USCG safety equipment was present at the time of the incident.