CITY COUNCIL AGENDA ITEM
ACTION REQUESTED:
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Approve the award of Bid 23-021, Northeast Water Works Improvements Phase II, to Dahme Mechanical Industries for an amount not to exceed $1,234,568 and a 3% contingency
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DEPARTMENT: Water Utilities
SUBMITTED BY: Darrell Blenniss, Director
BOARD/COMMISSION REVIEW:
N/A
BACKGROUND:
The Northeast Waterworks standpipe was originally constructed in 1966. The pump station and generator room were constructed in 1982. The pressure adjusting station (PAS) 15 water connection, chlorine system, and SCADA were constructed in 1991. Because the different systems in this station were built piecemeal over decades, system integration has always been an issue. In addition, many of the station assets, such as the generator, PAS 15 water connection, variable frequency drives (VFDs), and chlorine system are in poor condition and experience decreased reliability.
In February 2022, the City Council awarded 2022 Northeast Waterworks Phase I Improvements to Dahme Mechanical Industries and included the replacement of the generator and chlorine system. Currently, the Phase I project is under construction.
In April 2023, the City issued Bid 23-021, Northeast Water Works Improvements Phase II. This project is the continuous improvement of Phase I and includes the rehabilitation of the PAS 15 water connection station, installation of related conduits, wires, and painting of the PAS 15 water connection station and chlorine rooms.
During the design for Phase II, it was discovered that five existing Baldor VFDs were in need of repair. However, due to the elimination of the Baldor VFDs line and the unavailability of the parts, they will need to be replaced instead of repaired. The replacement of VFD#1 to VFD#5 and associated electrical wires/conduits has been added to the scope of Phase II.
DISCUSSION:
Advertisement Date: 04/20/2023 Notice Sent: 89
Bid Opening Date: 05/12/2023 Plan Holders: 39
Proposals Received: 2
|
Vendor Name |
Proposed Cost |
|
Dahme Mechanical Industries |
$1,234,567.89 |
|
Engineers Estimate |
$1,427,200.00 |
|
Joseph J. Henderson & Son, Inc. |
$1,496,222.00 |
Dahme Mechanical Industries has successfully completed multiple similar projects in Naperville within the last 5 years. In addition, they are currently working on Phase I Improvements. Therefore, the staff is confident they can successfully complete this project. The substantial completion date for this work is May 15, 2024 with a contract close out date of November 30, 2024.
FISCAL IMPACT:
CIP #: WU044 Northeast Water Works Improvements Phase II
Phase II replacement/rehabilitation to the NE Water Works station is expensed to the account number listed below. Staff included $725,000 as part of the Water Capital program for FY2023. The requested award, including the contingency, exceeds the budget for this project by $546,605; however, due to delays in other projects budgeted in 2023, the excess can be accommodated within the Water Capital Fund.
Amounts associated with 2024 will be budgeted in the upcoming budget cycle.
|
Account Number |
Fund Description |
Project Budget |
Total Budget |
|
41252000-551502 |
Water Capital Fund |
$750,000 |
$39,813,900 |
Per Council directive, contingency on construction projects is set at 3% on projects over $500,000 and 5% on projects under $500,000.