Z50115000                       USGS 
H50115000       1804450663801007272113SW210100048.82           470              
N50115000       RIO PORTUGUES NR PONCE, PR
Y50115000       
350115000       19650516   3050                7.70                      
350115000       19660919   1530                6.35                      
350115000       19670910    800                5.05                      
350115000       19680721   1060                5.68                      
350115000       19681009   1200                5.91                      
350115000       19691025   1810                6.69                      
350115000       19701009  10600                9.86                      
350115000       19720924    980                5.55                      
350115000       19730804   4260                8.84                      
350115000       19731015    574                4.71                      
350115000       19750916  13100               10.10                      
350115000       19751111   1700                8.53                      
350115000       19770730    500                4.84                      
350115000       19771101   1880                6.83                      
350115000       19790831   3010                9.81                      
350115000       19800529   1780                7.72                      
350115000       19810523   2330                8.72                      
350115000       19820912   3800               10.84                      
350115000       19830518   1550                7.28                      
350115000       19840917   1940                8.03                      
350115000       19850518   3050                9.87                      
350115000       19851007  21000               20.20                      
350115000       19861027   1510                7.33                      
350115000       19871127   2800                9.52                      
350115000       19890601   2380                8.88                      
350115000       19900925   1470                7.25                      
350115000       19901025   1920                8.01                      
350115000       19920106   6790               14.01                      
350115000       19930527   2850                9.58                      
350115000       19931007    923                6.13                      
350115000       19950916   1020                6.35                      
350115000       19960910   30709               9.90                      
350115000       19961123   1530                7.87                      
350115000       19980921   4120               11.36