Please note that the baseline level of 0.00 is an arbitrary setting established by our scientist when calibrating the instrument. It represents an elevation of 893.25 or approximately one jamb board removed from the dam. This is a rough estimate for now which will need refinement over time. This baseline provides a useful measure to directionally see the movement of the lake level over time. For example, if you select the last week on the drop down menu on the online chart you can view the lake level movement from last Sunday’s heavy rains to where the lake is currently.