=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Colonia             870/001 RLR(1964) is 10.8m below BM SH002
=========================== BENCHMARK INFORMATION UPDATE ADDED  12-JUL-93 :
Colonia             870/001 RLR(1964) is 10.8m below BM SH002
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 14-JUL-94 :
Record will be affected by the confluence of the Parana and
Uruguay Rivers.
Colonia is an historic station last data 1995

