The net annual operating cost for a water treatment filtration plant for a semiconductor fabrication line was estimated to be $1,900,000 per year. The estimate was based on the $200,000 per year cost of a 1-MGD plant. The exponent in the cost-capacity equation is 0.75. The size of the larger plant is nearest to: O 41,009,300 32,052,560 O 20,600,020 O 20,120,162