The contract 1728 involves replacement of all Return Activated Sludge (RAS) pipes in the Secondary pipe gallery and removal of the splitter boxes at the aeration basins.  Also, the existing RAS pumps will be removed and replaced with larger capacity pumps.

• Contract No. 1728-E, "Return Activated Sludge (RAS) Pipe and Pump Replacement - Electric," to Wellington Power Corp. at the price of $3,683,000.00
• Contract No. 1728-G, "Return Activated Sludge (RAS) Pipe and Pump Replacement - General," to Kokosing at the price of $14,166,850.00.
• Contract No. 1728-H, "Return Activated Sludge (RAS) Pipe and Pump Replacement - HVAC," to Guys Mechanical at the price of $1,128,000.00.
• Contract No. 1728-P, "Return Activated Sludge (RAS) Pipe and Pump Replacement - Plumbing," to First American Industries Inc. at the price of $242,000.00.