Z01644500                       USGS 
H01644500       3910010771337002424031SW0207000841.00                           
N01644500       GREAT SENECA CREEK NEAR GAITHERSBURG, MD
Y01644500       
301644500       19260118    520                7.20                      
301644500       19261116    8002               8.80                      
301644500       19280614    7262               8.70                      
301644500       19290416    450                6.45                      
301644500       19291022    489                6.70