WASTEWATER TREATMENT PLANT FACILITY PLAN PHASE 1 IMPROVEMENTS PROJECT

This opportunity involves a comprehensive upgrade of the Sioux City Wastewater Treatment Plant Phase 1, covering mechanical, structural, electrical, and control system improvements to increase capacity, improve reliability, and meet regulatory standards. The scope includes replacing screens, grit equipment, HVAC systems, primary clarifiers, pump stations, aeration tanks, blowers, and final clarifiers, as well as extensive demolition of obsolete structures and installation of new control and SCADA systems. • Mechanical upgrades: new screens, grit removal equipment, HVAC, and aeration blowers. • Structural work: replacement of primary clarifiers, pump stations, lift stations, and final clarifiers; demolition of obsolete buildings. • Electrical & control: installation of new switchgear, standby generators, SCADA system upgrades, and code‑compliant safety improvements. • Environmental compliance: odor control, NFPA 820 safety upgrades, and conversion of anaerobic digester to sludge storage. • Project schedule: bids close 10/29/2026, pre‑bid meeting on 10/5/2026, estimated completion by 12/31/2031.