I have a couple of possible concerns.
One is homeowners/liability insurance in a semi urban area. You mention local kids so that may be a concern as an attractive nuisance.
Another is the no draining covenant. If you need to work on it, it might have to be drained and that could be a hurdle to overcome. It "may" have started out as 8 to 10 ft but, over time, all ponds fill in from natural runoff. Look at the lay of the land to ascertain the natural runoff area. Just why was the pond built at governmental expense? What problem had to be overcome and what did it solve for other people?
As stated, check the depths yourself to assure that it is really 6 ft deep. In other words, trust but verify.
Last edited by Dave Davidson1; 02/21/11 09:20 AM.