Gainesville recovered nearly 59 million gallons of water in the first five years of a leak detection program, saving an estimated $126,000 in the process. But more work remains to limit such water losses locally and across the state. Gainesville’s service area lost an estimated 846 million gallons of water in 2013, according to a recent analysis of state Environmental Protection Division audit data by FluksAqua, an online community of water professionals.