Link to RLR information.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 14-Oct-2010 : Singapore station West Coast - dataset starts April 1997. Station was made RLRin2009 RLR year is 2008. Primary benchmark MPA 2 is 4.95m above ACD. RLR (2008) is 10.2m below BM with an RLR factor of 5.250m.
Maritime Port Authority of Singapore Hydrographic Department 460 Alexandra Road, PSA Building #20-00 Singapore 119963 SINGAPORE