I concur that evaporation is a major issue, as is seepage in some
places. You might contact your federal farm bureau people or the
Natural Recources Conservation people near you. They will be very much
involved in ponds and evaporatrion rates. Ours here have been very
helpful to us regarding farm ponds.

Good luck

Jim

damon_sisk wrote:
I have a pond that I want to use with geothermal pond loops for heating
and cooling my house. The pond was about 8 feet deep late last winter.
The surface was about 1/3 of an acre. Now, the level has dropped 2 to
3 feet.

Is it normal for the pond level to drop so drastically in the summer
and rise in the winter? I am in southern Indiana.

Thanks for any input!
Damon