New thickening facility that includes fermentation tanks, polymer preparation, sludge thickening, and sludge pumping. Installation of (4) rotary screen thickener units procured by owner. Construct a new waste activated sludge orthophosphate release facility. Convert the existing aeration basins to provide enhanced biological phosphorus removal. Modify the existing ferrous chloride pump. Updgrade the existing primary clarifiers and add a fourth RAS pump to the existing south plant RAS pump station. Replace the existing south plant RAS pipeline and interconnecting the south plant and north plant.
- Cost: $16,486,654
- Owner: City of Boise
- Designer: CH2MHill
- Construction Period: 09/2013 – 09/2015