Title
Water Production Wells and Aquifer Storage and Recovery Wells Phase 2 - Construction Manager at Risk Construction Services Amendment 1 - WS85010054, WS85010052 and WS85010045 (Ordinance S-46474)
Description
Request to authorize the City Manager, or his designee, to execute an amendment to Agreement 151457 with Hunter Contracting Co. (Hunter), to provide additional Construction Manager at Risk (CMAR) Services for the Water Production Wells and Aquifer Storage and Recovery (ASR) Wells Phase 2 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 additional fee for services included in this amendment will not exceed $3,150,000.
Report
Summary
The purpose of this project is to augment Phoenix's potable water resources during times of long-term water shortages, emergency outages, and meeting potable system demand balancing.
This amendment is necessary to add funds for Guaranteed Maximum Price (GMP) preparation and construction services. This amendment will also provide additional time to the agreement.
Hunter’s additional services include, but are not limited to: drilling two new wells and equipping two wells. The production capacity anticipated for the wells will be between 1,000 and 3,000 gallons per minute. Hunter will be responsible for construction means and methods related to the project and fulfilling the Small Business Enterprise program requirements. Hunter will be required to solicit bids from prequalified subcontractors and to perform the work using the City’s subcontractor selection process. Hunter may also compete to self-perform limited amounts of work.
Contract Term
The term of the agreement amendment is three years and six months 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
This amendment will add funds to the construction services agreement, for a total not-to-exceed agreement value of $3,150,000, including all subcontractor and reimbursable costs. The money requested in the original Council action was assigned to the preconstruction contract, none was allocated for GMP preparation.
Funding for this amendment 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 the 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:
- Preconstruction Services Agreement 151456 and Construction Services Agreement 151457 (Ordinance S-46273) on Jan. 8, 2020.
Department
Responsible Department
This item is submitted by Deputy City Managers Karen Peters and Mario Paniagua, the Water Services Department, and the City Engineer.