Title
91st Avenue Wastewater Treatment Plant Process Piping Rehabilitation - Engineering Services Amendment - WS90100101 (Ordinance S-49716)
Description
Request to authorize the City Manager, or his designee, to execute an amendment to Agreement 147881 with Brown and Caldwell, Inc. to provide additional Engineering Services for the 91st Avenue Wastewater Treatment Plant Process Piping Rehabilitation project. Further request to authorize execution of amendments to the agreement as necessary within the City Council-approved expenditure authority as provided below.
Report
Summary
The purpose of this project is to update various process piping systems within the 91st Avenue Wastewater Treatment Plant (WWTP). Plants 1 through 3 are in need of rehabilitation and replacement. These process piping systems are exposed, buried and located within the plants' service tunnels. The pipes vary in size from two inches to 24 inches in diameter.
This amendment provides additional time to the agreement.
The 91st Avenue WWTP is owned by the Sub-Regional Operating Group and operated by the City of Phoenix.
Contract Term
The term of the agreement amendment is two years from the 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
No additional funding is needed for this amendment.
Concurrence/Previous Council Action
The City Council approved:
- Design Services Agreement 142548 (Ordinance S-42518) on May 4, 2016; and
- Engineering Services Agreement 147881 (Ordinance S-44759) on June 20, 2018.
Location
91st Avenue WWTP
Council District: 7
Department
Responsible Department
This item is submitted by Deputy City Managers Ginger Spencer and Alan Stephenson, the Water Services Department and the City Engineer.