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  • Utilities Department-
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CONTACT INFO

Utilities Administration
(805) 781-7215

Additional Contact Info >>

Hours and Locations >>


Government » Department Directory » Utilities Department » Water

Water Sources

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Our Investments in Multi-Source Water Supply Help Ease the Impact of Droughts

While our memories can quickly fade, the 1987-1991 and 2014-2017 droughts had a profound effect on San Luis Obispo and those who experienced them can vividly recall the impacts. The subsequent decisions made and actions taken by City Council, community members, and staff to secure reliable water resources for the City continue to pay dividends. Investment in a multi-source water supply allows for a resilient supply even during drier periods.

As with any precious resource, it should be used wisely and efficiently. The City has four primary water supply sources including Whale Rock Reservoir, Salinas Reservoir, Nacimiento Reservoir, and recycled water (for irrigation). The Utilities Department is available to assist with questions regarding drought, irrigation practices, and water-wise landscaping at (805) 781-7215.

See our Water Levels

  • Water Sources

    Salinas Reservoir

    Salinas Reservoir (commonly referred to as "Santa Margarita Lake") captures water from a 112 square mile watershed and can store up to 23,843 acre-feet.

  • Whale Rock Reservoir

    Whale Rock Reservoir

    Whale Rock Reservoir provides both water and recreational opportunities to the community!

  • Nacimiento

    Nacimiento Reservoir

    With a maximum storage capacity of 377,900 acre-feet when full, Nacimiento Reservoir is the largest reservoir the City receives water from.

  • Groundwater

    Groundwater

    The City of SLO overlies the San Luis Valley Groundwater Basin. Learn about the City's plan to utilize groundwater in the future.

  • Recycled Water

    Recycled Water

    Recycled water provides a drought-resistant source in the City's water supply portfolio. Learn how the City currently uses recycled water and about future plans!

COME VISIT

990 Palm Street 
San Luis Obispo, CA 93401

PHONE

805.781.7100

Other Phone Numbers

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