Title
Approving a professional services supplemental agreement with Marmon Mok for the Public Works Complex project, in the amount of $373,082, and authorizing the City Manager to execute the same.
Summary
As part of the Public Works Complex Project (FA2306) construction, the City will be required to perform materials testing and specialty inspections as part of the overall $77M project. There are a significant amount of foundation piers, concrete, and building envelope inspections and materials testing that is required as part of the construction of the buildings. These inspections and testing are done via an outside 3rd party testing laboratory to ensure that the material used for construction meets the specifications set forth in the project and to minimize sub-par material being used on-site.
The original Professional Services Agreement with Marmon Mok did not include materials testing as a scope could not be determined until more preliminary design work was completed such as geotechnical bores and soil samples. While the Professional Services Agreement covered the majority of the scope, this was purposefully left out until that preliminary engineering could be completed and the Construction Manager At Risk (CMAR) was under contract in the event design modifications occurred during preconstruction.
Under this amendment, Marmon Mok will be responsible for conducting all construction materials testing during the construction of the facilities and perform specialty inspections for the pier foundations of all structures. This additional scope will facilitate all construction materials to be tested to ensure they meet the project specifications while also allowing Marmon Mok to facilitate coordination and review efficiently of test results in the case where a substitution or correction needs to be made.
This amendment to Marmon Mok’s Professional Services Agreement meets the City Strategic Goal of Infrastructure by ensuring that the facilities that the City constructs are built in a manner that supports robust and resilient infrastructure.
Prior City Council Action
On April 24, 2018, City Council approved the allocation of funding to begin the process of a Public Works Facilities Master Plan.
On April 27, 2021, City Council approved a Professional Services Supplemental Agreement with Freese & Nichols which contained the Public Works Facilities Master Plan.
On May 23, 2023, City Council approved a resolution authorizing the publication of the notice of intention to issue combination tax and limited revenue certificates of obligation in and estimated amount not to exceed $76,000,000 for facility and roadway improvement projects which includes the Public Works Complex.
On June 27, 2023, City Council approved Professional Services Agreement with Marmon Mok in the amount of $5,151,805 for professional engineering services associated with the Public Works Complex Project
On August 13, 2024, City Council approved a Construction Contract with Core Construction in the amount of $30,000 for Construction Manager At Risk (CMAR) services associated with the Public Works Complex Project.
On April 8, 2025, City Council approved a Construction Contract amendment with Core Construction in the amount of $77,631,160 for construction of the Public Works Complex.
Deadline for City Council Action
May 27, 2025
Funding Expected: Revenue ____ Expenditure _X__ N/A____
Budget Source: This project is funded through a combination of Certificates of Obligation from the general fund (50%) that have been previously issued and through Utility Revenue Bonds (50%) that will be issued as the project progresses through construction.
Budgeted Item: Yes __X__ No ___
Amount: $373,082
1295 Form Required? Yes X No ___
Legal Review: N/A______ Required X Date completed: __5/16/25_____
Supporting Documents Attached:
Professional Services Supplemental Agreement - Marmon Mok
Recommended Action:
Approve a Professional Services Supplemental Agreement with Marmon Mok and authorize City Manager to execute the same.