Wastewater Treatment Plant Expansion and Improvements
Valley Sanitary District
LEE & RO provided process analysis and plant master plan and prepared plans & specifications, and construction management & resident engineering services for a $46 million plant expansion and improvements that was implemented in two phases. The $26 million Phase 1 Project increased the activated sludge capacity from 5 to 10 mgd, and added hypochlorite/bisulfite chlorination & dechlorination, 54 inch outfall, belt-press sludge thickening & dewatering, and drying beds. The $20 million Phase 2 Project added two primary clarifiers, anaerobic digestion with a gas management system, odor controls, and admin & laboratory buildings. Projects included extensive electrical work.