  UNKNOWN SOURCE--  DEPTH OVER CRIB 27 FT WAS APPLIED BEFORE 1972 TO THE LAKE SURVEY CHART BEFORE NOS TOOK OVER THE CHART.  (ENTERED 4/05 CEH)
  F00502/06-- OPR-Y387-NRT4-05; Contacts were found during SSS and SBES investigation.  Lest depth of 27 ft wa