All water is owned by the state. If you launch at a state launch or from private property with permission from that owner then you can go anywhere on the body of water that you can without touching land, the shoreline or the bottom.
Think about the river rules for a moment. A river can flow through private property and you can't fish from shore since you are trespassing or wade the river by standing on the bottom since the bottom is private property but you can float through the private property in a boat as long as you don't touch the shore or anchor on the bottom.
Call the Ridgefield Police dept. and ask if they would issue a ticket for trespassing on that piece of water within the pond and if they would, under what law would you be violating by being in a boat on that water. Ask the same of Encon and see what their answer would be.
Candlewood Lake has nearly 100 parcels of private property under the lake which is owned by a Canadian pension fund and managed by First Light. These parcels were never title transferred when the land was condemned for the hydro facility. They are still to this day privately owned. So can they claim that the water above them is private and you can't boat over it? I don't think so.