Consideration and Approval of Contract:  Design Phase Services Agreement with PCL Construction, Inc. for the Lake Mary Sedimentation Basins Rehabilitation Project
 

1. Approval of a Design Phase Services Agreement with PCL Construction, Inc. for the Lake Mary Sedimentation Basins Rehabilitation Project in the amount of $199,235.00; and
2. Authorize the City Manager to execute all necessary documents.

The Lake Mary Water Treatment Plant produces up to 8 million gallons of potable water each day for distribution in our drinking water system. The treatment processes responsible for removing suspended sediments in the water is referred to as the Sedimentation Basins. These two one-million gallon basins, constructed in 1964, are in need of significant rehabilitation. Aging concrete, large mixers of various types and design, as well as all of the mechanical, structural, and electrical components of the Sedimentation Basins are in desperate need of replacement.

A Construction Manager at Risk (CMAR) procurement method was selected as the appropriate project delivery method and a panel of Water Services Staff selected PCL Construction, Inc. from numerous construction contractors that submitted as the most qualified contractor for this project. This Design Phase Services Agreement will allow us to determine the extent and scope to which we must rehabilitate the existing infrastructure.  Failing concrete, broken and worn out mixer assemblies, sludge rakes and pumps are all in need of replacement and will be covered in this contract.

Project Name: CMAR Design Phase Services Agreement for the Lake Mary Sedimentation Basins Rehabilitation Project
Cost: $199,235.00
Account Number Budgeted: 202-08-370-3372-0-4422, 202-08-370-3372-0-4465
FY Budgeted Amount: $7,389,470.00
Grant Funded: No
Funding Source: Water Services Capital Program

None.

1. Approve the Design Phase Services Agreement with PCL Construction, Inc. which would move the project forward; or
2. Reject the Agreement. However, this is not recommended because of the aging infrastructure. These basins and the associated equipment have served us well for the past 61 years and are now in very poor condition.

The Lake Mary Water Treatment Plant treats water from Upper Lake Mary utilizing various treatment processes and then distributes the finished water into the potable drinking water system. One of the steps in this treatment process are two one-million gallon basins that allow any suspended sediments a chance to fall out of suspension. These Sedimentation Basins utilize a chemical coagulant to assist the suspended sediments to precipitate, or fall from suspension, where they can be safely removed from our drinking water. These two large basins are constructed of concrete and contain large paddle mixers, enormous rake systems and finally, discharge weirs, all of which are subject to corrosion in this harsh water environment.  

On August 27, 2024, Procurement staff posted a Request for Statements of Qualifications (RSOQ) solicitation for Construction Manager at Risk (CMAR) services on the PlanetBids electronic bidding website and advertised it in the Arizona Daily on Saturday August 31 and Tuesday September 7, 2024. On September 19, 2024, Procurement received three (3) Statements of Qualifications (SOQs) from contractors responding to the RSOQ. A Selection Committee of six members, including one member in professional services of engineering. The evaluation committee independently reviewed and evaluated the SOQs in accordance with guidelines established by the enabling legislation. After meeting to discuss the scoring, the committee decided based upon the numerical scoring of the written SOQs, the Committee identified the most qualified contractor to perform the CMAR services for the project and recommended commencing negotiations for a scope and fee proposal to be provided by PCL Construction Inc. Final scores of all firms are as follows:

PCL Construction 699 Points
Schofield 679 Points
KEAR 675 Points

This infrastructure rehabilitation project is directly in line with our communities' Priority Based Budgeting objectives of Sustainable and Innovative Infrastructure as well as our Community Safety and Health.

WR.2.2. Maintain and develop facilities to provide reliable, safe, and cost-effective water, wastewater, and reclaimed water services.  
This project will allow us to develop a scope of services for the upcoming rehabilitation of critical water treatment infrastructure and treatment processes.

None.

None.

This project is connected to our Water Services specific plan for maintaining and replacing aging infrastructure.