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ITEM  31 City Council Memorandum      Public Works & Utilities  Memo No. CP25-057         Date: November 4, 2024 To: Mayor and Council Thru: Joshua H. Wright, City Manager Andy Bass, Deputy City Manager John Knudson, Public Works and Utilities Director Daniel Haskins, Capital Projects Division Manager From: Gina Ishida-Raybourn, Principal Engineer Subject: Construction Manager at Risk (CMAR) Pre-Construction Services Agreement No. WA2100.251, with Archer Western Construction, LLC, for the Water System Upgrades Program

Proposed Motion:

Move City Council award CMAR Pre-Construction Services Agreement No. WA2100.251, to Archer Western Constuction, LLC, for the Water System Upgrades Program, in an amount not to exceed $913,965.

Background/Discussion:

The Pecos Surface Water Treatment Plant (PSWTP), located at 1475 East Pecos Road, was put into service in 1989. The current treatment capacity of the PSWTP is 60 million gallons per day. In recent years, the source water quality from the Salt River Project canal that feeds the PSWTP has been dramatically changing with respect to certain characteristics such as Total Organic Carbon. Advanced water treatment upgrades are necessary to treat the challenging incoming water quality. In addition, the existing unit processes such as the filters and dewatering are in need of rehabilitation and replacement. The work under this project will address process improvements to enhance the maximum process and hydraulic throughput of the PSWTP, including the post-filter granular activated carbon contactors, chlorine dioxide facility, equalization pump improvements, and a new dewatering building with modernized and energy efficient equipment. The project scope of work consists of constructability studies and review, value engineering, project planning and scheduling, design document reviews, cost model development, subcontractor and supplier selection process, and preparation of Guaranteed Maximum Price packages. The agreement completion time is 419 calendar days following Notice to Proceed. A related Construction Manager at Risk Contract with Archer Western, for the Water System Upgrades Program, is also scheduled for this City Council meeting. A related Consultant Services Agreement with Hazen and Sawyer, for the Water System Upgrades Program, is also scheduled for this City Council meeting.

Evaluation:

The selection process was followed in accordance with city policy and procedure and state law. Staff recommends agreement award to Archer Western, based on qualifications, relevant firm experience, team experience, project understanding, and project approach.

Fiscal Impact

Account No. Fund Name Program Name Dollar Amount CIP Funded Y/N 601.3820.6718.6WA210 Water Bond Water Treatment Plant Improvements $913,965 Y

Attachments Location Map Agreement - Archer Western

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