CITY COUNCIL AGENDA ITEM
ACTION REQUESTED:
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Approve the award of Bid 24-080, Northwest Wastewater Pump Station 20-Inch Ductile Iron Forcemain Rehabilitation, to Visu-Sewer of Illinois, LLC, for an amount not to exceed $2,014,412 plus a 3% contingency
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DEPARTMENT: Water Utilities
SUBMITTED BY: Darrell Blenniss, Director
BOARD/COMMISSION REVIEW:
N/A
BACKGROUND:
The Northwest Wastewater Pump Station and associated 20-inch duct iron force main were constructed in 1993 with the purpose of pumping wastewater from the northwest portion of the City of Naperville and all wastewater flow from the City of Warrenville to the Springbrook interceptor. From there, the wastewater is transported to the Springbrook Wastewater Treatment Plant. 3.6 million gallons of wastewater are pumped from the Northwest Wastewater Pump Station and its 20-inch force main daily.
In 2023, the Water Utility contracted with RJN Group to perform an internal pipeline condition assessment of the Northwest Pump Station 20-inch force main. The inspection of the force main revealed significant diameter restrictions and high-risk anomalies, suggesting potential leaks. The inspection report prepared by RJN recommended cleaning, structural rehabilitation or replacement of the force main, and the installation of additional air relief structures for the existing force main.
In January 2024, Water Utility crews preformed an external condition assessment to all of the valve structures and manholes associated with the 20-inch force main. The inspection revealed that the force main discharge manhole has deteriorated from hydrogen sulfide gas and will also have to rehabilitated.
DISCUSSION:
Advertisement Date:
5/21/2024
Notices Sent:
291
Opening Date:
7/02/2024
Planholders:
33
Proposals Received:|1010|
Bids were received from the following vendors:
Vendor Name
Proposed Cost
Engineer's Estimate
$1,960,110
Visu-Sewer of Illinois
$2,014,412
Performance Construction and Engineering
$2,992,075
M...
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