  FE354SS/90-- OPR-D111-HE; ITEM NO. 17; UNCHARTED OBSTRUCTION LOCATED IN LAT. 36-52-27.08N, LONG. 75-52-21.42W WITH AN ESTIMATED DEPTH OF 15.6 METERS (51 FEET). EVALUATOR RECOMMENDS CHARTING AN OBSTRUCTION WITH AN ESTIMATED DEPTH OF 15.6 METERS AS SURVE