Company to provide the city centrifuge preventive maintenance, predictive maintenance, and repair services for 2 (two) dewatering centrifuges and 2 (two) Thickening Centrifuges at the Mallard Creek WRF , Westfalia and Humboldt Dewatering Centirfuge and Humboldt Thickening Centrifuge. In addition to Preventive Maintenance, the selected Company will need to provide predictive maintenance service.