=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Fernandina          960/021 RLR(1923) is 10.1m below BM
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1994
No detailed benchmark information available.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 27-Jul-2011
Data downloaded directly from the NOAA website. Datum information also downloaded. NOAA Primary Benchmark is 34 1923 4.77m above TGZ.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Aug-2011
Using data from NOAA the RLR diagram was re-drawn. Primary benchmark appears to be 34 1923 4.770m above gauge datum. The historical benchmark BM 27 previously used by PSMSL no longer appears in the NOAA report.