=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 08-Jul-1993
Port San Luis              823/042 RLR(1986) is 10.6m below BM 6
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 23-Nov-2011
Using information from the NOAA website the RLR diagram has been revised. Primary benchmark remains BM 6 named 6 1936 in the NOAA report 5.691m above TGZ.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 18-Sep-2012
For Information: Data values during the early 1980's appear to be particularly high. This phenomenon could be due to the El Nino Southern Oscillation (ENSO) as it is mirrored all along the Californian coast.