City Council Agenda
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Memo to: |
Manteca City Council |
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From: |
Kevin Jorgensen II, Director of Engineering/City Engineer |
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Prepared by: |
Elba Mijango, Associate Engineer; Somporn Boonsalat, Deputy Director of Engineering |
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Date: |
July 30, 2025 |
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Subject: |
Nile Garden Well 30 Water Supply Project (CIP 21026 & 21034) |
Recommendation:
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Adopt a resolution approving Amendment No. 2 for construction management and inspection services with Brown & Caldwell in the amount of $150,000 for the Nile Garden Well 30 Water Supply Project; 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:
The City of Manteca (“City”) and the Manteca Unified School District (“MUSD”) partnered to secure a grant of approximately $8.37 million from the State Water Resources Control Board (“State Water Board”) for the construction of Well 30 and all associated equipment necessary to supply drinking water to Nile Garden Elementary School. This effort is part of the Nile Garden Well 30 Water Supply Project, CIP 21026 and 21034 (“Project”).
On June 20, 2023, the City Council awarded the Phase 1 construction contract to Nor-Cal Pump & Well Drilling (“Nor-Cal Pump”) in the amount of $927,853 and approved an agreement with Brown & Caldwell (“B&C”) for Phase 1 construction management and inspection services (“CMIS”) in the amount of $206,867, see Attachment 5.
On March 5, 2024, the City Council awarded the construction contract for Phase 2 of the Project to T&S Construction in the amount of $4,925,000 and approved Amendment No. 1 for CMIS with B&C in the amount of $674,044, see Attachment 4.
In March 2024, during drilling activities at Well 30, the surrounding soil began to cave in. Drilling was paused, the area was stabilized, and a geotechnical investigation was conducted. The resulting report included recommendations that led to design modifications, including changes to the building and arsenic treatment system foundations, rerouting of electrical conduits, and revisions to various site piping - both above and below grade.
These changes resulted in increased project costs and extended the anticipated completion date from July 2025 to December 2025.
On June 3, 2025, the City Council approved Amendment No. 3 with the State Water Board, providing an additional $700,000 in grant funding bringing the total reimbursable grant to $9,074,888.
On July 16, 2025, the water service line to Nile Garden Elementary School (“Nile Garden”) passed the bacterial testing and potable water was delivered to the school. The ribbon cutting to celebrate successful potable water delivery to Nile Garden is scheduled for July 29, 2025.
Amendment No. 2 with B&C, in the amount of $150,000, would provide for continued CMIS through the end of the Project.
Fiscal Impact:
There is sufficient funding in the Fiscal Year 2025-26 Capital Improvement Program Projects (CIPs 21026 and 21034) in Water Improvement (Fund 690) for Amendment No. 2 in the amount of $150,000.
There is project contingency available of $1,389,007 in Fund 690 for both CIPs 21026 and 21034.
Documents Attached:
1. Attachment 1 - Resolution
2. Attachment 2 - Project Location
3. Attachment 3 - Amendment 2 with Brown & Caldwell
4. Attachment 4 - Amendment 1 with Brown & Caldwell
5. Attachment 5 - Brown & Caldwell Agreement