San Luis Obispo County Water Resources

Public Works Department


Paso Robles Groundwater Basin


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The “Paso Robles Area Subbasin” of the Salinas Valley Groundwater Basin (locally referred to as the “Paso Robles Groundwater Basin”), DWR Bulletin 118 Basin No. 3-4.06 , lies in northern San Luis Obispo County and extends into Monterey County. The subbasin is bounded by the Santa Lucia Range on the west, the La Panza Range on the South, and the Temblor and Diablo Ranges on the east. The basin overlies approximately 505,000 acres (790 square miles).


In 2015, the State legislature approved a new groundwater management law known as the Sustainable Groundwater Management Act (SGMA). SGMA requires that high and medium priority basins comply with the new law. DWR designated the Paso Robles Groundwater Basin as a high priority basin and designated the basin to be in a "condition of critical overdraft." The map below shows those areas subject to SGMA.



Interactive Map of Paso Robles Groundwater Basin

Welcome to the SGMA Interactive Data Viewer for the Paso Robles Groundwater Basin! This is an interactive mapping system to help you to navigate around the Paso Robles Groundwater Basin by panning, zooming, or searching for a specific parcel or street address that you would like to locate. There are different map layers that can be shown and superimposed in this interactive mapping system such as boundaries of groundwater basins, cities, roads, SGMA eligible entities, and others by checking the layer names indicated on the left panel layer menu. To search and locate a specific APN or street address on the map:


1. Enter either the nine-digit parcel number (APN) including hyphens or the complete street address in the “Search...” bar on the upper right hand corner of the map screen and then click on the search button to locate it. The APN or street address that you just entered will appear on the left panel and a location marker will show up on the map to identify the location.

2. Click on the APN or street address name shown on the left panel layer menu will zoom in to the specified location for a close-up look


Click here to open the Interactive Map of Paso Robles Groundwater Basin in a new window




Current News, Information, and Meetings

Upcoming Meeting(s):


    • Paso Basin Cooperative Committee
    • Special Meeting & Public Workshop
    • 5:30 p.m.
    • Monday, April 23, 2018
    • Kermit King Elementary
    • 700 Schoolhouse Circle, Paso Robles, CA 93446
    • AGENDA


    • Paso Basin Cooperative Committee
    • Regular Meeting
    • 4:00 p.m.
    • Wednesday, April 25, 2018
    • Paso Robles City Council Chambers
    • 1000 Spring Street, Paso Robles, CA 93446
    • AGENDA


Past Meetings:


    • County of Board Supervisors Meeting
    • Tuesday, March 6, 2018
    • AGENDA
    • *Agenda Item #7 and Agenda Item #29


    • Paso Basin Cooperative Committee Meeting
    • Wednesday, March 7, 2018
    • AGENDA
    • Item #6 Presentation




    • Paso Basin Cooperative Committee Meeting
    • Wednesday, October 25, 2017
    • AGENDA




More Information

For more information on the Sustainable Groundwater Management Act, please visit here.



Paso Basin GSP Request for Proposals



GSAs in Paso Basin


Proposed Water Districts (if formed):

    Estrella El Pomar Creston Water District



Paso Robles Groundwater Basin Documents and Reports


Groundwater Sustainability Plan - Initial Notification


Click here for Documents and Reports related to the Paso Robles Groundwater Basin



How to Get Involved?

  • Check back to see current news, information, and upcoming meetings.
  • Show up at upcoming meetings.
  • Sign up for the SGMA Mailing List here.
  • Contact Information:
    • County - Angela Ruberto

      (805) 781-5139


SGMA Mailing List

Please select from the following list(s):


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