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File #: 19-2153    Version: 1 Name: 12/16/19 - WWTP Headworks Improvement Project
Type: Resolution Status: Passed
File created: 12/16/2019 In control: City Council
On agenda: 12/16/2019 Final action: 12/16/2019
Enactment date: 12/16/2019 Enactment #: R-19-564
Title: Resolution to Approve a Professional Services Agreement with Hubbell, Roth & Clark, Inc. to Design the Headworks Improvement Project at the Wastewater Treatment Plant, RFP No. 19-12 ($477,420.53)
Attachments: 1. HRC PSA w attachments.pdf
Title
Resolution to Approve a Professional Services Agreement with Hubbell, Roth & Clark, Inc. to Design the Headworks Improvement Project at the Wastewater Treatment Plant, RFP No. 19-12 ($477,420.53)
Memorandum
Your approval is requested for a Professional Services Agreement with Hubbell, Roth & Clark, Inc. (HRC) in the amount of $477,420.53 for professional engineering services to design the Headworks Improvement Project for the City's Wastewater Treatment Plant (WWTP). The headworks of the WWTP provides initial treatment to remove debris (or screenings) and grit from the water, which helps to prevent 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 separators and grit washers. The bar screens were installed in 2000 and require more frequent repair and rebuilding. The grit system was also installed in 2000 and has required pump replacement and several repairs of the swirl concentrators and washers over time. In addition, WWTP staff have observed significant accumulation of grit downstream of the removal system that suggests the removal efficiency of the grit system is significantly diminished. 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.

Through RFP No. 19-12, the WWTP solicited proposals for professional engineering services to design the WWTP Headworks Improvement Project. WWTP staff evaluated proposals submitted by six professional engineering firms using a quality based selection process that is used by many municipalities, including the City, for procurement of professional engineering services. Each of the proposals was evaluated based on the selection criteria...

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