Water Pollution Grit Bat B System and Primary Tank Improvements

The Work consists of improvements to the primary clarifiers and Grit Battery B at the City of Flint Water Pollution Control Facility. The work includes improvements to the ten primary clarifiers including replacement of existing primary clarifier sludge collection mechanisms, primary clarifier influent gates, effluent trough, and concrete rehabilitation. The work also includes improvements to the Grit Battery B including replacement of the aerated grit removal system with four stacked tray grit settlers, installation of two mechanical bar screens with washer compactor units, installation of grit washer and classifier units, replacement of existing 60-inch influent pipe, gate replacement, building addition to house screenings and grit dumpster, building improvements, concrete rehabilitation and electrical system improvements.

Division 02 -	Existing Conditions, Subsurface Investigation.
Division 03 -	Concrete, Concrete Reinforcing, Cast-in-Place Concrete.
Division 05 -	Metals, Structural Metal Framing, Metal Decking.
Division 23 -	Heating, Ventilating, and Air Conditioning (HVAC), Facility Fuel Piping, Facility Fuel-Storage Tanks.
Division 31 -	Earthwork, Clearing and Grubbing, Grading.
Division 32 -	Exterior Improvements, Fences and Gates.
Division 33 -	Utilities, Storm Drainage Utilities.