 HISTORY
  LNM18/96--04/30/96, 8TH CGD; ADD OBSTRUCTION PA IN 30-30-06N, 88-03-30W (NAD 83).  (ENT 8/02, PSH)
  S-J610-WH-02--HLS: Hydrographer recommends retaining charted obstruction, although no significant contacts were found within 70% of the AWOI