Again and again and again and again and again we hear of this.
I'm convinced there may be one (or less than one) person who can build a non-leaking pond in every state. This forum is the place people come to get help and do research, why not create a list of reputable pond builders by state?

It would be like an Angie's List but it wouldn't be advertised, just if you found this site and are poking around looking for information you can at least get a list of people who don't screw their customers and move on.

Or if it is easier, lets start a Hall of Shame thread and name names. If the dirt mover doesn't like it he or she can fix it and the name can be removed from the Hall of Shame and on to the recommended list.