=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Esperanza           A  /001 RLR(1977) is 10.1m below Pilar de Referencia
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993
Esperanza           A  /001 RLR(1977) is 10.1m below Pilar de Referencia
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 21-Mar-2001
Bahia Esperanza - acoustic gauge installed 1993.
February 1994 - December 1995 datum problems.
Became responsibility of NOS/NOAA in 1996.