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    A view of the existing Pacheco Dam and Reservoir in south Santa Clara County.

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  • Pacheco Reservoir Expansion

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    Pacheco alternative #2

    Pacheco alternative #2

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    Valley Water is evaluating five different dam alternatives for the proposed expansion of Pacheco Reservoir.
    Pacheco alternative #1
    Pacheco alternative #2
    Pacheco alternative #3
    Pacheco alternative #4
    Pacheco alternative #5
    Valley Water drilled boreholes as deep as 340 feet into the ground to gather information about the soil and rock characteristics at the site of the Pacheco Reservoir Expansion Project..