 HISTORY
  H10383/91--OPR-J452-HE; UNKNOWN OSTRUCTION LOCATED BY SIDE SCAN ì
SONAR IN POS. LAT.30-13-09.5N, LONG.87-17-26.4W WITH A COMPUTED ì
LEAST DEPTH OF 18.9M IN 20.8M (68.2 FT) OF WATER. EVALUATOR ì
RECOMMENDS TO CHART AS 18.9N OBSTR (A). (ENTE