City Council Agenda
Memo to:
Manteca City Council
From:
Michael Selling, Assistant Director of Engineering/City Engineer
Prepared by:
Kyzen Nicolas, Associate Engineer;
Somporn Boonsalat, Deputy Director of Engineering
Date:
April 21, 2026
Subject:
Wastewater Quality Control Facility Sludge Thickener Project (CIP No. 24007) & Dewatering Unit No. 3 Project (CIP No. 24006) - Approval of Services Agreement for Construction Management and Inspection
Recommendation:
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Adopt a resolution approving an Agreement for Services with Carollo Engineers, Incorporated for an amount up to $1,598,028.30 to provide construction management and inspection services for the Wastewater Quality Control Facility Sludge Thickener Project (CIP No. 24007) & Dewatering Unit No. 3 Project (CIP No. 24006); and authorizing the City Manager or designee to take all appropriate actions necessary to carry out the purpose and intent of the resolution.
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Background:
On April 15, 2025, the City of Manteca (City) awarded the construction contract C2025-66 to C. Overaa & Company (Overaa) for the Wastewater Quality Control Facility (WQCF) Sludge Thickener Project (CIP No. 24007) and Dewatering Unit No. 3 Project (CIP No. 24006) (collectively "Project") in the amount of $22,865,000.
On May 8, 2025, the City received proposals for Construction Management and Inspection Services (CMIS) from the following firms:
* 3D Built
* Brown & Caldwell
* Carollo Engineers
* Hazen & Sawyer
* West Yost
City staff convened a review committee for the CMIS proposals and ranked West Yost first, followed closely by Carollo Engineers in second place as both being responsible, responsive, qualified firms, who meet the specific goals of the Project.
On July 30, 2025, the City awarded Agreement C2025-147 to West Yost in an amount up to $2,187,512 to provide CMIS for the Project. However, through mutual agreement, the City subsequently terminated the CMIS contract with West Yost on March 16, 2026.
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