Title
91st Avenue Wastewater Treatment Plant, Plant 2B Rehabilitation - Engineering Services Amendment - WS90100112 (Ordinance S-49339)
Description
Request to authorize the City Manager, or his designee, to execute an amendment to Agreement 153379 with Hazen and Sawyer, P.C. to provide additional Engineering Services for the 91st Avenue Wastewater Treatment Plant, Plant 2B Rehabilitation 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 $6 million.
Report
Summary
The purpose of this project is to rehabilitate or replace assets throughout Plant 2B at the 91st Avenue Wastewater Treatment Plant (WWTP) and incorporate current technologies and equipment.
This amendment is necessary to add additional construction administration services. This amendment will provide additional funds and time to the agreement.
The 91st Avenue WWTP is owned by the Sub-Regional Operating Group (SROG) and operated by the City of Phoenix.
Contract Term
The term of the agreement amendment is for up to five years 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 initial agreement for Engineering Services was approved for an amount not to exceed $4 million, including all subconsultant and reimbursable costs.
- This amendment will increase the agreement by an additional $6 million, for a new total amount not to exceed $10 million, including all subconsultant and reimbursable costs.
Funding for this amendment is available in the Water Services Department's Capital Improvement Program budget utilizing SROG funds.
Concurrence/Previous Council Action
- The SROG Advisors authorized the project on Sept. 9, 2020; and
- The SROG Advisors authorized Construction Administration Services on Nov. 9, 2022.
The City Council approved:
- Engineering Services Agreement 153379 (Ordinance S-47068) on Nov. 18, 2020.
Location
91st Avenue WWTP
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.