Z50081800                       USGS 
H50081800       1809450655023007272069SW2101000510             91.9             
N50081800       RIO HUMACAO AT HWY 30 AT HUMACAO, PR
Y50081800       
350081800       19600906  2760027                                        
350081800       19650508                      29.22                      
350081800       19690521                      29.46                      
350081800       19701009                      30.27