=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993
Tanjung Sedili      550/012 RLR(1987) is 9.1m below BM J0801
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 19-Sep-2012
Publication Tidal Observation Records 2010 confirms that the Primary benchmark
remains BM J0801 4.459m above TGZ.