Case Study: Mankato, MN

The state of Minnesota instituted a new water quality requirement that limits cities along the Minnesota River to a 1 mg/L Total Phosphorus limit by 2015 to prevent algae blooms and resulting pollution problems. The Mankato WWTP also needed to meet the California Title 22 limits for reuse. The recycled water would then be supplied to an energy center for use in the plant's cooling tower.