You have been asked by the board to provide them with a projected annual operating budget for chlorination at a pump station. Known information: station has 2 identical pumps that operate on a continuous 12-hour alternating cycle, 150 Hp each pump, 81% efficiency, pumps into an 18″ DI pipe, pump elevation is 4005′, reservoir elevation 4410′ (floor), tank has a 150′ diameter, with an overflow at 30′ above the floor, chlorine demand is 1.0 mg/l with a required free chlorine residual of 0.7 mg/l, and chlorine cost is $0.51/lb.