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11 ATTACHMENTS 1-3
City of Pleasanton
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CITY CLERK
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AGENDA PACKETS
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2021
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020221
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11 ATTACHMENTS 1-3
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1/27/2021 1:49:04 PM
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CITY CLERK
CITY CLERK - TYPE
AGENDA REPORT
DOCUMENT DATE
2/2/2021
DESTRUCT DATE
15Y
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Joint Tri-Valley Potable Reuse Technical Feasibility Study I ES TRI-VALLEY WATER AGENCIES <br /> amount of available flow for the AWPF.The available flow for potable reuse is seasonally <br /> variable and depending on the use of the source can affect the yield of the project as shown in <br /> Figure ES.S. <br /> 25 <br /> 20 <br /> 0115 - )000 AFY with!mei' flows - wet weather flows <br /> E - Sources:Livermore and <br /> OSd4SD <br /> 010 <br /> U. <br /> 5,4,500 AFY with b.seline flows <br /> 5 - Source:Livermore <br /> ta <br /> ,C1' <br /> = 0 <br /> La. a - IN O O <br /> Z <br /> —Available Combined Flow <br /> Figure ES.5 Projected Available Secondary Effluent Flows and Yields <br /> Potential Treatment Locations and End Uses <br /> Criteria for selecting treatment locations included available space,proximity to source water, <br /> proximity to end uses,and site accessibility.With these criteria in mind,five preliminary options <br /> were chosen for potential AWPF location: <br /> - DSRSD–in space currently used as a dedicated land disposal(DLD) <br /> - LWRP–in the abandoned on-site facultative sludge lagoons(FSLs) <br /> - Mocho–near Zone 7's existing Mocho Demineralization Facility <br /> - Chain of Lakes(COL) <br /> - Pleasanton Corp Yard <br /> This study investigated three potential end uses for purified water: <br /> - Groundwater augmentation or recharge via injection wells at two locations-one in the <br /> eastern side of the basin in Livermore and one in the western side in Pleasanton near the <br /> Mocha Demineralization facility <br /> - Groundwater recharge via Lake I(Chain of Lakes)surficial recharge <br /> - Raw water augmentation via Chain of Lakes to DVWTP(or directly to DVWTP) <br /> All proposed AWPF locations and end uses are shown in Figure ES.6. <br /> Car.„•*" ' FINAL'; MAY 2018 7 <br />
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