Summary
Replacement of aeration blowers, aeration diffusers, return activated sludge (RAS) and waste activated sludge (was) pumping systems and east primary tanks collector mechanisms and stop gates, headworks channel blowers, and distribution structure gates. The work also includes construction of new channel and tank compressed air mixing systems, and new post-aeration channels which includes installation of new post-aeration gates, blowers, piping, and valves. The work also includes removal and replacement of deteriorated concrete walkways at the aeration tanks and channel walls at the primary tanks; removal of existing masonry baffle walls at the aeration tanks; enlarging of openings in concrete walls at the aeration tanks; heating, ventilating, and air conditioning (HVAC) work; electrical work; site work; yard piping work; miscellaneous piping work; miscellaneous metals work; miscellaneous concrete work; and all other ancillary work required to complete the improvements.