City Council Agenda
Memo to:
Manteca City Council
From:
Kevin Jorgensen II, Director of Engineering/City Engineer
Prepared by:
Kyzen Nicolas, Associate Engineer;
Somporn Boonsalat, Deputy Director of Engineering
Date:
April 15, 2025
Subject:
Approval of Award of Construction Contract with C. Overaa & Co. in the amount of $22,865,000 and Approval of Amendment No. 2 with Carollo Engineers, Inc. (C2023-136) in the amount of $800,000 for the WQCF Sludge Thickener Capital Improvement Program Project (CIP 24006) and the Dewatering Unit No. 3 System Design Capital Improvement Program Project (CIP 24007)
Recommendation:
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Adopt a resolution determining C. Overaa & Co. as the lowest, responsive, and responsible bidder for the WQCF Sludge Thickener & Dewatering Unit No. 3 System Design Project CIP No. 24006 & 24007; awarding the construction contract to C. Overaa & Co. in the amount of $22,865,000; approving Amendment No. 2 to Agreement C2023-136 for Professional Services with Carollo Engineers, Inc. for an amount not-to-exceed $800,000; approving a Project contingency of $2,000,000; and authorizing the City Manager or designee to execute the construction contract, Agreement Amendment, approve construction change orders and Agreement amendments up to the total Project budget, and take all appropriate actions necessary to carry out the purpose and intent of the resolution.
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Background:
In March 2022, the City of Manteca (City) completed a capacity assessment study (Study) for the Wastewater Quality Control Facility (WQCF). The Study identified 10 interim improvements needed to optimize the WQCF treatment process:
1. Glycerin Injection System (completed and in-service)
2. Replace Waste Activated Sludge (WAS) Pumps (in construction)
3. Replace Return Activated Sludge (RAS) Pumps (in construction)
4. Replace Internal Mixed Liquor Recycle Pumps (in construction)
5. Fix Flow Split to North Plant Aeration Basin (in construction)
6. Add New Independent M...
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