=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 23-Mar-1994
Data up to 1991 revised, March 1994
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 15-Jul-1994
Port Alberni        822/111 RLR(1990) is 8.5m below BM 2,1959
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 20-Apr-2000
Port Alberni discontinued 1997