Joe ...I don't recall seeing how deep your pond would be. The formula for deciding pond size uses annual rainfall, watershed, , runoff potential of watershed(soil type , slope , and vegetation). The volume of water to fill your pond is measured in acre/feet. A 1/2 acre pond with an average depth of 7 feet holds 3 1/2 acre feet of water. My pond is in North Texas and we have similar rainfall and heat as you. With that said, my 100ac watershed with high runoff potential will not even come close to keeping a 5 acre (12' average depth= 60 acre/feet) pond full...hope this helps..du
