
 SURVEY REQUIREMENT COMMENTS
  50 METER SWATH SEARCH ON CENTER LINE OF ROW OF PILES.

 HISTORY
  T9284/46-- CLUSTER OF SEVEN PILES SHOWN ON TOPO SHEET. POSITION ì
OF NORTHERLY PILE OF THREE PILES IN A ROW SCALED FROM CHART 11319 ì
(1:40,000). POSIT