Title
Concrete Reservoir Rehabilitation Program: Union Hills Water Treatment Plant Reservoir 3D-ES2 Rehabilitation Design Services (Ordinance S-44073)
Description
Request to authorize the City Manager, or his designee, to enter into an agreement with Wilson Engineers, LLC, to provide design services and construction administration and inspection (CA&I) services for the Union Hills Water Treatment Plant (WTP) Reservoir 3D-ES2 Rehabilitation project. Wilson Engineers, LLC's fee for services under this contract will not exceed $1,419,436. Further request authorization for the City Controller to disburse all funds related to this item.
Additionally, request authorization for the City Manager, or his designee, to take all action deemed necessary to execute all utilities-related design and construction agreements, licenses, permits, and requests for utility services relating to development, design and construction of the project and to include disbursement of funds. Utility services include, but are not limited to: electrical, water sewer, natural gas, telecommunications, cable television, railroads, and other modes of transportation. This authorization excludes any transaction involving an interest in real property.
Report
Summary
The existing reservoir, built in 1983, is a 40 million gallon (mg) finished water reservoir located within the confines of the Union Hills WTP, and is an integral component to the operation of the treatment plant. In order to design and rehabilitate the reservoir, it was determined that phased design is required to maintain operation of the Union Hills WTP and the City of Phoenix water distribution system during the complete or partial shutdown of the reservoir.
Wilson Engineers, LLC's design services will include but are not limited to: developing a Master Plan, preparing a Phase 1 design for rehabilitation of the Union Hills Reservoir 3D-ES2 and Phase 2 conceptual design, planning and design for isolation, relocation, and/or modification of existing booster pump stations 4A-B4 and 5E-B4, which both reside within the reservoir, development of a conceptual demolition plan for rehabilitation and construction, and modeling as required to evaluate the isolation of the booster pump station within the reservoir during rehabilitation.
CA&I services will include, but are not limited to: reviewing shop drawings, issuing interpretations and clarifications, certifying contractor progress payments, conducting inspections, and preparing reports.
Procurement Information
Wilson Engineers, LLC, was chosen for this project using a qualifications-based selection process for study, design, and CA&I services, according to Section 34-603 of the Arizona Revised Statutes. Scoring and selection were made previously in conjunction with the project's study services.
Contract Term
The contract term of the design services is expected to take approximately 804 calendar days to complete from issuance of the Notice to Proceed. The contract work scope identified and incorporated into the contract prior to the end of the contract may be agreed to by the parties, and work may extend past the termination for work in progress. No additional contract work scope changes may be executed after the end of the contract term.
Financial Impact
Wilson Engineers, LLC's fee for services under this contract will not exceed $1,419,436. The initial contract will be executed for project design services for a not-to-exceed total of $784,436, including all subconsultants and reimbursable costs. A future contract amendment will be executed for CA&I services for a not-to-exceed total of $635,000, which will be reviewed separately by the Budget and Research Department. Total contract funds in the amount of $1,419,436 are available in the Water Services Department’s Capital Improvement Program budget. Contract payments may be made up to contract limits for all rendered contract services, which may extend past the contract termination.
Concurrence/Previous Council Action
On May 7, 2014, Council approved Contract 138267 to conduct a study for the project.
Location
The Union Hills Water Treatment Plant is located in the area of Cave Creek and Deer Valley roads.
Council District: 2
Department
Responsible Department
This item is submitted by Deputy City Managers Karen Peters and Mario Paniagua, the Water Services Department and the City Engineer.