Historic Crests
(1) 827.01 ft on 09/22/2009
(2) 824.71 ft on 09/17/2004
(3) 822.59 ft on 09/21/2009
(4) 820.93 ft on 03/06/2003
(5) 820.56 ft on 10/12/2009
(6) 819.28 ft on 07/16/2005
(7) 819.12 ft on 05/19/2013

(P): Preliminary values subject to further review.