How much lower will the lake level become when water for the two new units is withdrawn?
The additional water used by Units 3 & 4 will result in the lake level being as much as 1.5-ft lower than it would have been during drought conditions which is about 30 percent of the time. During average rainfall years and wet years, there will be no effect on lake levels. During extreme drought, such as experienced in the 1950s, the lake would be as much as 4-ft lower than it would have been without any water use by Units 3 & 4. This data is based on projections for year 2020 lake conditions with normal releases of water from hydroelectric production from Possum Kingdom Lake.
