Z01647720                       USGS 
H01647720       3906590770609002424031SW020700109.73           320              
N01647720       NORTH BRANCH ROCK CREEK NEAR NORBECK, MD
Y01647720       
301647720       19670825    823                5.31                      
301647720       19680114    413                4.01   1                  
301647720       19690904    706                4.92                      
301647720       19700721    518                4.25                      
301647720       19710213   1030                5.86                      
301647720       19720622  10100               14.10                      
301647720       19730720    978                5.72                      
301647720       19740330    850                5.40                      
301647720       19750926   2500                8.02                      
301647720       19760101   1200                6.00                      
301647720       19770313    340                3.59