
 HISTORY
  H10506/93-- OPR-I173-MI; SIDE SCAN SONAR CONTACTS AND DIVE OPS. 5 ROCK PILES LOCATED BY DIVERS. ALL OF SIMILAR DIMENSIONS (40 X 25 FEET). CHARTED ON THE 17TH EDITION OF CHART 25649. POSSIBLY DREDGED MATERIAL. EVALUATOR RECOMMENDS CHARTING D