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TO: Mayor Thomas J. Weisner
FROM: Lonnie Avery, P.E., Utility Construction Coordinator
DATE: March 6, 2014
SUBJECT:
A Resolution Awarding a Contract to American Underground of Illinois for the CSO #10 Diversion Structure and Outfall Replacement Project.
BGI Committee - March 24, 2014
PURPOSE:
To award a contract for the above referenced project
BACKGROUND:
In March of 2010 the City of Aurora submitted a Combined Sewer Overflow Long Term Control Plan (CSO LTCP) in accordance with requirements set forth by the Clean Water Act. The purpose of the plan is to reduce the total volume of raw sewage that is discharged into the Fox River and Indian Creek from the City's combined sewer system. The City owns 15 permitted combined sewer overflows. CSO 10, located near Prairie Street and River Street is one of the City's most active CSO's.
The improvements consist of reconfiguring the piping configuration within the intersection of Prairie Street and River Street, and removal and replacement of the existing diversion structure. The piping reconfiguration and new diversion structure are needed in order to maximize the capacity of the existing combined sewer system.
The project also includes the replacement of the existing outfall structure near the river bank, as well as some adjacent piping. The outfall structure and adjacent piping are being replaced because the outfall structure has washed away, and the adjacent piping is partially collapse.
DISCUSSION:
The subject project is part of a series of improvements that are needed to bring CSO 10 into compliance with US EPA and IL EPA requirements. Additional improvements currently under design include partial sewer separation within the sewer basin tributary to CSO 10.
Four (4) bids were received and publicly opened and read aloud on Wednesday, March 5, 2014. The low bid was submitted by American Underground of Illinois, LLC in the amount of $244,554.63. The 2014 budget contains fund...
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