Frontier Water systems has designed and built two SeHAWK® plants at a western limestone quarry, both of which accomplish dewatering and treatment of flows required to maintain mining operations in the pit. Built in 2018, the second plant has a capacity of 1200 gpm and contains two SeHAWK® modular bioreactors in conjunction with ultrafiltration and reverse-osmosis equipment to attain high flow treatment with a reduced footprint.