Datum Conversions - Yorktown (YKTV2)
Flood Level	MLLW	MHHW	NAVD88
Zero MLLW	0.00	-2.58	-1.49
Action	4.00	1.42	2.51
Minor	4.50	1.92	3.01
Moderate	5.00	2.42	3.51
Major	5.50	2.92	4.01