Z01645704 USGS H01645704 3853040771957005151059SW020700085.49 288.1 N01645704 DIFFICULT RUN ABOVE FOX LAKE NEAR FAIRFAX, VA Y01645704 301645704 20080906 3990 8.19 301645704 20090515 2290 7.17 301645704 20100930 687 5.24 301645704 20110908 3870 8.14 301645704 20111013 573 4.98 301645704 20121030 1570 6.53 301645704 20140516 2380 7.61 301645704 20150627 983 5.83 301645704 20160224 705 4.84 301645704 20170729 1150 6.70 301645704 20180801 4390C 8.42 301645704 20190815 1270C 6.82 301645704 20200722 756C 5.82 301645704 20210901 1020C 6.50 301645704 20220810 970C 6.39 301645704 20221222 461C 4.81