SCOPE OF WORK: The Work to be performed under these Contract Documents is generally described as follows: Removal and replacement of twenty (20) primary sludge pumps with accompanying variable frequency drives (VFDs), construction of a primary sludge screening facility, screened primary sludge splitting box, 4 new 80-foot diameter covered thickening tanks, thickener overflow pumping station, thickened primary sludge pumping station, electrical building, foul air biofilters, and all piping and appurtenances. ESTIMATED COST: The Engineer's estimate is in the $90,000,000 to $100,000,000