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File #: 18-1102   
Type: Ordinance-S Status: Adopted
Meeting Body: City Council Formal Meeting
On agenda: 5/16/2018 Final action: 5/16/2018
Title: Booster Pump Station Rehabilitation and Replacement Packages 1 and 2 - Construction Manager at Risk Design Phase Services - WS85100032 (Ordinance S-44581)
District: District 2, District 3, Out of City

Title

Booster Pump Station Rehabilitation and Replacement Packages 1 and 2 - Construction Manager at Risk Design Phase Services - WS85100032 (Ordinance S-44581)

 

Description

Request to authorize the City Manager, or his designee, to enter into an agreement with MGC Contractors, Inc. to provide Construction Manager at Risk (CMAR) Design Phase Services in support of the Booster Pump Station (BPS) Rehabilitation and Replacement project. Further request authorization for the City Controller to disburse all funds related to this item. The fee for services will not exceed $243,958.88.

 

Report

Summary

The City assessed and ranked 108 Water distribution system BPSs and determined improvements will be completed over the next five to seven years at the 30 sites most in need of improvement. The first six of the sites to be improved have been divided into two packages that are being awarded to two separate engineering firms.

 

Package 1 consists of a complete rebuild of the following stations:

  • BPS 6J-B1 (capacity 0.22 MGD with three pumps), Lower Du Sommet.
  • BPS 5N-B1 (capacity 0.043 MGD with two pumps), Upper Mount Central.
  • BPS 7J-B1 (capacity 0.16 MGD with three pumps), Upper Du Sommet.
  • BPS 10A-B1 (capacity 0.94 MGD with four pumps), Casa De Cielo.

 

Package 2 consists of the following stations and activities:

  • BPS 5F-B2 (capacity 0.40 MGD with three pumps), Upper Coral Gables - complete rebuild of the station.
  • BPS 5E-B4 (capacity 47.4 MGD with six pumps), Union Hills Water Treatment Plant - replace: two vertical turbine pumps, two silent check valves, four butterfly valves, two pump control valves, four Variable Frequency Drives (VFD), one Motor Control Center (MCC) per site, one Service Entrance Station (SES) per site, and air vacuum / release valves; and inspect the 54-inch header for possible rehabilitation or replacement.

 

 

 

Using the list of proposed improvements, the consultant will work with the City Operations and Engineering staff to confirm required improvements. Water service will not be interrupted during construction.

 

MGC Contractors, Inc. will begin in an agency support role for the design phase service and then hold the construction contract with the City for construction of the project. Services during the CMAR design phase include: providing detailed cost estimating from knowledge of marketplace conditions; planning and scheduling project/construction phases to minimize interruption to City operations; evaluation of alternate systems; providing constructability studies and long-lead procurements; assisting in permitting processes; and participation in the Small Business Enterprise (SBE) process to establish the SBE goal for construction.

 

Procurement Information

MGC Contractors, Inc. was selected for this project using a qualifications-based selection process according to section 34-603 of the Arizona Revised Statutes (A.R.S.). Pursuant to A.R.S. title 34, the City may not release the scoring of proposers until a contract has been awarded. Eight firms submitted proposals. The top three rankings follow:

 

MGC Contractors, Inc.: Rank 1

Felix Construction Company: Rank 2

Hunter Construction Company: Rank 3

 

Contract Term

The term for services is expected to be nine months after issuance of the Notice to Proceed. 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 of the contract. No additional contract work scope may be executed after the end of the contract term.

 

Financial Impact

MGC Contractors, Inc.'s fee will not exceed $243,958.88, including all subconsultant, subcontractor, and reimbursable costs. Funding is available in the Water Services Department's Capital Improvement Program budget. Contract payments may be made up to the contract limits for all rendered contract services, which may extend past the contract termination.

 

 

 

 

Location

  • Lower Du Sommet, in the area of 58th Street and Hummingbird Lane.
  • Upper Mount Central, in the area of Central Avenue and North Lane.
  • Upper Du Sommet, in the area of 57th Street and Quartz Mountain Road.
  • Casa De Cielo, in the area of Cave Creek Road and Carefree Highway.
  • Upper Coral Gables, in the area of 15th Avenue and 15th Drive.
  • Union Hills Water Treatment Plant, in the area of Deer Valley Drive and Cave Creek Road.

Council Districts: 2, 3, Out of City

 

Department

Responsible Department

This item is submitted by Deputy City Managers Karen Peters and Mario Paniagua, the Water Services Department, and the City Engineer.