City Council Agenda
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Memo to: |
Manteca City Council |
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From: |
Michael Selling, Assistant Director of Engineering/City Engineer |
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Prepared by: |
Wing Chang, Assistant Engineer Somporn Boonsalat, Deputy Director of Engineering |
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Date: |
May 12, 2026 |
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Subject: |
Well 22 Treatment Facility |
Recommendation:
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Adopt a resolution approving Amendment No. 1 to Agreement C2026-08 with Kleinfelder, Inc. for the Well 22 Treatment Facility Project CIP No. 26033 in the amount of $733,496 for engineering design services with a total not-to-exceed amount of $933,496 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:
Well 22, located at 376 Victory Ave adjacent to Walnut Place Park is a potable water well. The site is currently equipped with a submersible pump, above-ground discharge piping, and onsite electrical and telemetry infrastructure for system integration and remote monitoring with SSJID surface water blending capabilities.
Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) are a group of synthetic chemicals widely used in various industrial and consumer products for their resistance to water, grease, and stains. Common applications include firefighting foam, non-stick cookware, water-repellent fabrics, and food packaging.
The City of Manteca (City) joined a class action lawsuit against PFAS manufacturers 3M, DuPont, Tyco and BASF. To date, the City has been able to recover $2,638,315.26 to be used towards known PFAS treatment.
In April 2024, the Environmental Protection Agency (EPA) adopted new national drinking water standards for six PFAS compounds. Public water systems must complete initial monitoring and began compliance monitoring and reporting by 2027. Full compliance with all Maximum Contaminant Levels (MCL) must be achieved before 2029. Recent testing has detected PFAS compounds in Well 22 at concentrations exceeding the advisory levels set by the EPA.
On January 6, 2026, the City approved Agreement C2026-08 for preliminary design and field testing services with Kleinfelder, Inc. for an amount not-to-exceed $200,000, see Attachment 3.
In April, Kleinfelder completed testing service and staff is recommending to move forward with design services to prepare plans and specifications.
Fiscal Impact:
Staff recommends Council approve Amendment No. 1 in the amount of $733,496 to Agreement C2026-08 with Kleinfelder for design services with a total not-to-exceed amount of $933,496.
There is sufficient funding in CIP No. 26033 in the Water Operations & Maintenance Fund (Fund 680) for this amendment.
Documents Attached:
1. Attachment 1 - Resolution
2. Attachment 2 - Location Map
3. Attachment 3 - Agreement C2026-08
4. Attachment 4 - Amendment No. 1