=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Cedar Keys II       940/052 RLR(1974) is 8.9m below BM11
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-Jul-1993
Many stations on the Gulf coast have large values for September 1961.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 27-Jul-2011
Data is downloaded directly from the NOAA website. Datum information also downloaded NOAA Primary Benchmark is BM 8 2.347m above the datum.