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File #: 22-0484    Version: 1 Name: 4/4/22 Resolution to Approve Contract with Hubbell, Roth & Clark Amendment Number 2
Type: Resolution Status: Passed
File created: 4/4/2022 In control: City Council
On agenda: 4/4/2022 Final action: 4/4/2022
Enactment date: 4/4/2022 Enactment #: R-22-089
Title: Resolution to Approve Amendment No. 2 to the Contract with Hubbell, Roth & Clark, Inc. for the Headworks Improvement Project at the Wastewater Treatment Plant, RFP No. 19-12 ($831,187.00 Amendment, Contract Total $1,600,275.53)
Attachments: 1. HRC Headworks Amendment 2_final.pdf
Title
Resolution to Approve Amendment No. 2 to the Contract with Hubbell, Roth & Clark, Inc. for the Headworks Improvement Project at the Wastewater Treatment Plant, RFP No. 19-12 ($831,187.00 Amendment, Contract Total $1,600,275.53)
Memorandum
Your approval is requested for Amendment No. 2 to the Professional Services Agreement with Hubbell, Roth & Clark, Inc. (HRC) in the amount of $831,187.00 for engineering services related to construction of the Headworks Improvement Project at the City's Wastewater Treatment Plant (WWTP).

The WWTP headworks systems provide initial treatment to remove debris (screenings) and grit from the water as the first stage of treatment, which prevents damage to downstream equipment and systems. The existing headworks consists of three mechanical bar screens, three screw compactors and two grit removal systems including pumps, swirl separator and grit washer. The bar screens were installed in 1989 and in 2000 and require frequent repair and rebuilding. The grit system was also installed in 2000 and has required pump replacement and rebuilding of the swirl concentrators and washers over time. The cost and frequency for maintenance of these systems have increased and parts for the screening systems are no longer available and must be custom fabricated. These systems are nearing the end of their useful life and are in need of replacement to ensure effective screenings and grit removal.

On December 16, 2019, Council approved a Professional Services Agreement with HRC in the amount of $477,420.53 to design the Headworks Improvement Project as specified in RFP No. 19-12 (Resolution R-19-564). Subsequently, an odor study in the area of the WWTP was performed by HDR Michigan, Inc. to address ongoing nuisance odor complaints from WWTP neighbors. As a result of this study, the design of an odor control system was added to HRC's contract via Amendment No.1. On May 3, 2021, Council approved Amendment No.1 with HRC in the amount of $291...

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