=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Colonia             870/001 RLR(1964) is 10.8m below BM SH002
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993
Colonia             870/001 RLR(1964) is 10.8m below BM SH002
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 14-Jul-1994
Record will be affected by the confluence of the Parana and
Uruguay Rivers.
Colonia is an historic station last data 1995