 HISTORY
  H10446/92-93-- OPR-D368-WH; (FE-386SS RESCINDED); SUBMERGED ì
OBSTRUCTION LOCATED IN LAT. 38-47-27.26N, LONG. 75-03-13.34W. LD ì
OF 17.5 METERS (57 FEET, PNEUMATIC DEPTH GAUGE) IN 18.6-18.9 ì
METERS. DESCRIBED AS A CONCRETE BLOCK (HEXAGON)