Please note: In many cases, the station position in our database is accurate
to only one minute. Thus, the tide gauge may not appear to be on the coast.
Using data extracted from the NOAA website the RLR diagram has been re-drawn. Primary benchmark appears to be 7624 F 1979 3.917m above gauge datum. This benchmark appears in Epoch 1960-1978 and 1983-2001 with the same levelling value. The benchmark BM7 2.429m above gauge datum appears in the early Epoch as NO 7 1950 again as 2.429m relative to the datum but does not appear in the 1983-2001 Epoch.
Documentation added 2015-02-23
NOAA website confirms that the station was removed in September 2003.