=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 23-Mar-1994 data up to 1991 revised, March 1994 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 15-Jul-1994 Steveston 822/083 RLR(1991) is 7.9m below BM 77-C-008 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 20-Apr-2000 Steveston discontinued 1998