Z50094400                       USGS 
H50094400       1759390660347007272015SW210100045.86           131.2            
N50094400       RIO NIGUA AT PITAHAYA, PR
Y50094400       
350094400       19650809                      14.35                      
350094400       19690521   1700               11.90                      
350094400       19700917                      13.30                      
350094400       19701009   5800               15.40                      
350094400       19730821   2100               12.45