Z01581000                       USGS 
H01581000       3932450761942002424025SW020600037.50                            
N01581000       BYNUM RUN NEAR BEL AIR, MD
Y01581000       
301581000       19510704   2190                7.15                      
301581000       19520709   2080                7.12                      
301581000       19521121   2190                7.15                      
301581000       19531214    482                6.57                      
301581000       19550812    910                7.10