wrote:

i live in vermont with very clay soil
and want to dig a "big" pond for swimming in the summer
and skating in the winter.

How big is "big?"

Talk to the soil conservation people; they will likely have a list of
preferred contractors who have the needed capability. And there are other
factors, like the amount of watershed that feeds it vs. max rainfall in a
long period, which determines the spillway needed.

My 2/3 acre pond was built in 4 days by a maniac with a turbocharged D-6.
And yes, I know about clay...


Gary Woods AKA K2AHC- PGP key on request, or at home.earthlink.net/~garygarlic
Zone 5/6 in upstate New York, 1420' elevation. NY WO G