  H10340/90-- OPR-D111-WH; DANGEROUS SUBMERGED OBSTRUCTION LOCATED BY SIDE SCAN SONAR IN LAT. 36-52-36.10N, LONG. 75-52-39.30W. ESTIMATED DEPTH OF 16.8 METERS. ADDITIONAL WORK RECOMMENDED.
  FE353SS/90-- OPR-D111-HE; ITEM NO. 12. OBSTRUCTION LOCATED IN