Elévation
( Feet) Referred to Low
Water Datum
1968
|
1969
|
1970
LEGEND
Recorded levels
Probable levels-------Average levels ( period of record )----- Averoge levels ( lost 10 yeors ) "—-----------------Extrême high levels and yeor of occurrence ( period of record )ienl*TLiS7< lt9l
Extrême low levels and yeor of occurrence ( period of record )_ _ _
-
Z
Figure 3-39. Typical Water Level Variations in Lake Erie