WASTEWATER TREATMENT PLANT FACILITY PLAN PHASE 1 IMPROVEMENTS PROJECT

The City of Sioux City is seeking qualified contractors to execute Phase 1 improvements of its wastewater treatment plant. The scope includes replacement and upgrades of mechanical screens, grit removal equipment, HVAC systems, primary clarifiers, sludge pumping stations, lift stations, aeration tanks, blower systems, final clarifier mechanisms, odor control systems, standby emergency generators, switchgear, SCADA upgrades, and extensive demolition of obsolete structures, along with associated civil, structural, and electrical work. The project is intended to modernize the plant, improve process efficiency, meet updated safety and environmental codes, and extend its operational life. • Replace mechanical screens, grit equipment, and HVAC in preliminary treatment building. • Rehabilitate primary clarifiers, install new sludge pumping and lift stations, and convert aeration tank to three‑stage process. • Perform extensive demolition of unused plant structures and install new odor‑control and emergency power systems.