Two weeks later the WBL Conservation District Board reviewed an independent study that stated the aquifer appears to be at a high level. This begs the logical questions: Why is the lake level down by 5.5 feet if the aquifer is at a high level? What has really happened over the last 2-4 years if the aguifer is at a high level?
Below is the same thing I said in my own way for free. read my previous posts.
This is accurate and reflects a fair assessment of situation and can be relied on.
Get over it, deal with it, adapt.
The Minnesota DNR has conducted a detailed study of the White Bear Lake and groundwater system (MN DNR 1998). Principal findings include:
Lake level fluctuations are strongly correlated with aquifer fluctuations.
Groundwater augmentation resulted in increased lake levels.
Groundwater augmentation increased water loss from the lake to the aquifer.
Groundwater augmentation is not 100% efficient, and may be as low as 14% efficient. In the extreme, this means that for every 100 gallons pumped into the lake, 14 gallons stay in the lake.
Increases in lake levels from pumping are short-lived, about one year.
A lake level control structure at the lake’s outlet has been modified since the early 1930s or 1940s to maintain higher lake levels.
Lake level augmentation appeared to provide some benefit
in terms of short-term lake level increases during low water levels. However, because of a change in state policy that prevents lake level augmentation from groundwater aquifers as well as the lack of any other feasible solutions, the prospect of lake level augmentation should not be further considered at this time.
The recharge area - the area that supplies the aquifer - for the aquifer supporting the level of White Bear Lake extends beyond the surface watershed, especially to the north and east of White Bear Lake. Future urban development of the recharge area could pose a threat to the lake’s water supply if there are significant water withdrawals from the aquifer. Constructing new wells as well as the increase in hard surface which usually accompanies urbanization would reduce recharge of the aquifer thereby exacerbating lake level fluctuations. Because of these concerns, it makes sense to identify the critical recharge areas and work to assure that they are protected as before urbanization occurs.
Finally, it is noted that lake use conflicts are intensified when the lake level is low. While we have learned that we cannot mitigate this situation, we should provide relief during low water levels.
As water demands increase the aquifer is depleted so it seem to be both natural and man made.