San Diego gets most of its water supply from far away. About a fifth of it comes from Northern California.

Gov. Jerry Brown has big ideas for making sure Southern California can continue drinking water from its northern neighbor. He wants to build two 35-mile underground tunnels 150 feet underground to keep water flowing south. The price tag would be at least $17 billion.

Once a big supporter of the plan, the San Diego County Water Authority is now among its biggest skeptic.

In this week’s San Diego Explained, NBC7’s Monica Dean and Voice of San Diego’s Ry Rivard dive into why San Diego water officials are wary of Brown’s plan to keep water flowing from Northern to Southern California.

    This article relates to: San Diego Explained, Science/Environment, Water

    Written by Kinsee Morlan

    Kinsee Morlan is the Engagement Editor at Voice of San Diego and author of the Culture Report. Contact her directly at Follow her on Facebook or Twitter. Subscribe to her podcast.

    Don Wood
    Don Wood subscriber

    The governor's office says the proposed Delta Pipes project will provide the southern end of the state with a more reliable water supply, in case the Delta levies are destroyed in an earthquake. But the big south state water agencies are more interested in new supplies of water. Why should they pay to build up the delta water handling system when there is no promise of MORE water being piped south?  They are less interested in investing in a more reliable water supply system than they are in investing in a new system which would send more water south than the current system.