Historic Crests
(1) 443.33 ft on 10/31/2015
(2) 442.65 ft on 07/01/2015
(3) 440.36 ft on 05/18/1968
(4) 440.11 ft on 03/17/1992
(5) 439.29 ft on 01/03/1992
(6) 438.61 ft on 05/20/1990

(P): Preliminary values subject to further review.