Z01496080 USGS H01496080 3935530755837002424015SW020600021.70 N01496080 NORTHEAST RIVER TRIBUTARY NEAR CHARLESTOWN, MD Y01496080 301496080 19670307 260 4.00 301496080 1968 1254Bm 3.40 4Bm 301496080 1969 1254Bm 301496080 19700402 480 5.10 301496080 19710828 395 4.70 301496080 19720622 615 5.80 301496080 19730629 150 3.80 301496080 19731221 215 3.80 301496080 19750720 700 7.70 301496080 19751113 320 4.30