Title
23rd Avenue Wastewater Treatment Plant Grit Basin Replacement - Construction Manager at Risk Construction Services - WS90200059 (Ordinance S-46282)
Description
Request to authorize the City Manager, or his designee, to enter into an agreement with McCarthy Building Companies, Inc. (McCarthy) to provide Construction Manager at Risk (CMAR) Construction Services for the 23rd Avenue Wastewater Treatment Plant (WWTP) Grit Basin Replacement project. Further request to authorize execution of amendments to the agreement as necessary within the Council-approved expenditure authority as provided below, and for the City Controller to disburse all funds related to this item. The fee for services will not exceed $30,060,000.
Report
Summary
The purpose of this project is to replace the grit basins and supporting facilities at the 23rd Avenue WWTP. Grit removal systems take grit material (sand, stones, rocks, construction material, etc.) out of the wastewater treatment process to increase process capacity and reduce maintenance costs. The original grit basins were constructed in 1984. A recent assessment revealed the grit removal systems have reached the end of their useful operational life and rehabilitation is no longer cost effective. This project will include replacement of the grit removal basins, pumps, bar screens, and other supporting facilities.
McCarthy’s initial services will include preparation of a Guaranteed Maximum Price proposal for the Construction Services provided under the agreement and participating with the City in a process to establish a Small Business Enterprise (SBE) goal for the project. McCarthy will be responsible for construction means and methods related to the project and fulfilling the SBE program requirements. McCarthy will be required to solicit bids from prequalified subcontractors and to perform the work using the City’s subcontractor selection process. McCarthy may also compete to self-perform limited amounts of work.
McCarthy’s services include, but are not limited to: cost estimating; project planning and scheduling; providing alternate systems evaluation and constructability studies, advise on ways to gain efficiencies in project delivery; long-lead procurement; and assist with permitting process. An SBE goal will be established for this project upon substantial completion of preconstruction services and prior to the start of construction.
Procurement Information
The selection was made using a qualifications-based selection process set forth in section 34-603 of the Arizona Revised Statutes. Scoring and selection were made in conjunction with the CMAR Preconstruction Services selection process.
Contract Term
The term of the agreement is one year from issuance of the Notice to Proceed. Work scope identified and incorporated into the agreement prior to the end of the term may be agreed to by the parties, and work may extend past the termination of the agreement. No additional changes may be executed after the end of the term.
Financial Impact
The agreement value for McCarthy Building Companies, Inc. will not exceed $30,060,000, including all subcontractor and reimbursable costs.
Funding is available in the Water Services Department's Capital Improvement Program budget. The Budget and Research Department will separately review and approve funding availability prior to execution of any amendments. Payments may be made up to agreement limits for all rendered agreement services, which may extend past the agreement termination.
Concurrence/Previous Council Action
The City Council approved:
- Assessment Services Agreement 144853 (Ordinance S-43439) on April 19, 2017;
- Engineering Services Agreement 147217 (Ordinance S-44418) on April 4, 2018; and
- CMAR Preconstruction Services Agreement 149209 (Ordinance S-45323) on Jan. 23, 2019.
Location
2470 S. 22nd Ave.
Council District: 7
Department
Responsible Department
This item is submitted by Deputy City Managers Karen Peters and Mario Paniagua, the Water Services Department, and the City Engineer.