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13
City of Pleasanton
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CITY CLERK
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AGENDA PACKETS
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2019
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110519
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13
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11/1/2019 3:39:48 PM
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11/1/2019 2:04:51 PM
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CITY CLERK
CITY CLERK - TYPE
AGENDA REPORT
DOCUMENT DATE
11/5/2019
DESTRUCT DATE
15Y
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13 ATTACHMENT 1 EXHIBITS
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o Reverse osmosis (RO) treatment <br /> • Alternatives comparisons that include: <br /> o Determination of required facility upgrades to support <br /> o Construction feasibility <br /> o Residual management strategies <br /> o Operational staffing impacts and certification needs <br /> o Capital costs and O&M costs <br /> o Pros and cons comparison <br /> • Implementation plan in coordination with City to implement recommended full- <br /> scale treatment systems. <br /> This contract amendment increases the contract compensation amount by $197,854 for <br /> Carollo to perform the PFAS treatment evaluation. Included in this amount is optional <br /> service of $50,000 to perform bench testing. The purpose of bench testing is to more <br /> accurately estimate the treatment media replacement frequency for the Granulated <br /> Activated Carbon (GAC) adsorption and Ion Exchange (IX) resin treatment <br /> technologies. This information provides a more detailed basis for estimating O&M and <br /> life cycle costs and also pre-screens the effectiveness of the tested media. The need to <br /> utilize these optional services will be confirmed during initial project workshops. The <br /> estimated schedule for completion of the feasibility study is February of 2020. If bench <br /> testing is selected, the schedule is estimated to be extended to June of 2020. <br /> The City Manager authorized and signed the amendment to the agreement with Carollo <br /> to expedite Carollo's investigation into alternative treatments at City wells, due the <br /> importance and time sensitivity to treat PFAS. <br /> Submitted by: Fiscal Review: Approve. .y: <br /> k\\•\1 <br /> Kathleen Yurchak Tina Olson N-lson Fialho <br /> Director of Operations and Director of Finance City Manager <br /> Water Utilities <br /> Attachments: <br /> 1. Contract Amendment with Carollo Engineers <br /> Page 3 of 3 <br />
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