The best pond construction place in your region is Gray Construction Columbia TN.
www.grayconstruction.net Mike Gray has an article in every PBoss magazine.
Contact these experts for an evaluation of your situation. IMO once the average pond reaches 35-40 years old it needs to be rebuilt if water quality is a priority. If cost is a priority, then the pond could be down sized. High quality fish can be easily grown in 0.5 to 1 acre, plus one acre is easier & less costly to manage than 2 acres when there are problems.
