CITY COUNCIL AGENDA ITEM
ACTION REQUESTED:
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Approve the award of Bid 22-039, Springbrook Water Reclamation Center UV Disinfection Improvements, to Williams Brothers Construction, Inc. for an amount not to exceed $8,322,000.00, plus a 3% contingency
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DEPARTMENT: Water Utilities
SUBMITTED BY: Darrell Blenniss, Director
BOARD/COMMISSION REVIEW:
N/A
BACKGROUND:
Springbrook Water Reclamation Center (SWRC) is required by the Illinois Environmental Protection Agency (IEPA) to disinfect wastewater effluent prior to releasing it to the DuPage River. The existing disinfection system is a chlorination/de-chlorination system that is nearing the end of its useful life. The system requires constant staff attention and replacement parts have become difficult to source. In addition, the cost of chemicals required to operate the system has increased 50-100%.
As part of the SWRC Facilities Plan project, a disinfection alternatives analysis was performed to evaluate various wastewater disinfection options. Various criteria were examined during the analysis including initial capital cost, annual operating and maintenance cost, 20-year life cycle cost, operational considerations, safety, constructability and environmental/social factors. Ultraviolet (UV) disinfection was chosen as the preferred disinfection method. It has the lowest life-cycle cost, as well as the best non-cost score. This method of disinfection does not involve shipping, storing or dosing of chemicals.
In June 2022, the Water Utilities issued Bid 22-039, Springbrook Water Reclamation Center UV Disinfection Improvements. The project will involve construction of a new UV disinfection system and non-potable water pumping system, including demolition of existing disinfection facilities, modifications to chlorine contact basins for conveyance of wastewater, flow metering, yard piping, outfall construction, UV facility construction, electrical, plumbing, heating, ventilation, structural, and instru...
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