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November 8, 2024 <br />Aubrey Rose, <br />AICP, Planner III <br />Alameda County Community Development Agency Planning <br />Department <br />224 West Winton Avenue, Room 111 <br />Hayward, CA 94544 <br />Email: aubrey.rose@acgov.org <br />Subject: DSRSD Comments on the Draft Environmental Impact Report for the Arroyo Lago <br />Residential Project <br />Dear Ms. Rose: <br />The Dublin San Ramon Services District (DSRSD) appreciates the opportunity to comment on the Draft <br />Environmental Impact Report (DEIR) for the Arroyo Lago Residential Project. DSRSD distributes drinking <br />water and recycled water to the City of Dublin and Dougherty Valley portion of the City of San Ramon, <br />provides wastewater collection and treatment for the City of Dublin and southern portion of the City of <br />San Ramon and, by contract, treats wastewater from the City of Pleasanton. DSRSD is also a member of <br />the Livermore-Amador Valley Water Management Agency (LAVWMA), which discharges treated <br />wastewater from the cities of Livermore, Pleasanton and DSRSD into San Francisco Bay. By contract, <br />DSRSD is also responsible for the operation and maintenance of the LAVWMA facilities. <br />DSRSD has the following comment: <br />•As described in Chapter 2.2.2 of the DEIR, the Project proposes to construct storage ponds and <br />irrigate approximately 8.5 acres of agricultural fields with tertiary treated recycled water <br />produced by the development. The DEIR does not address the sizing of storage ponds that <br />would be needed during wet weather season when there would be minimal irrigation demands. <br />Additional details should be provided to address how the Project plans to address the disposal <br />of tertiary treated recycled water during the wet weather season to minimize potential runoff. <br />•The DEIR proposes to construct a package wastewater treatment plant to process and treat <br />wastewater generated by the development. The DEIR should address and analyze the <br />environmental impacts related to the disposal of biosolids waste from the proposed wastewater <br />treatment facility, including whether biosolids will be handled onsite or off hauled for land <br />disposal. <br />Supplemental Memo Attachment