=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 13-Jan-1998
National Tidal Facility SEAFRAME station
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 24-Sep-2010
Supplying authority have confirmed that BM 27 is 5.355 m above tide gauge zero,which is the zero of the University of Hawaii tide staff.RLR (2009) has beeen defined as 11.7 m below BM 27