PASO ROBLES GROUNDWATER BASIN (PRGWB)

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Area of severe decline

If your property uses water from within the area of severe decline, then your property is not eligible for the 5 AFY exemption for new irrigated crop production for properties without existing irrigated crop production. 

The County Land Use Ordinance originally defined the area of severe decline within the PRGWB as the area where groundwater elevation levels dropped 50 feet or more from Spring 1997 to Spring 2013, based on groundwater level contours generated using a computer-based contouring program, which are based on groundwater elevations measured at monitoring well locations. Click here for a technical memo explaining the mapping methodology.

To see if your property is in the updated area of severe decline, click on the map and follow the instructions below.

Including areas where groundwater elevation levels dropped 50 feet or more from Spring 1997 to Spring 2013 AND from Spring 1997 to Spring 2017, showing persistent decline.

To search for your property:

  1. Type your address or parcel number in the search bar in the top right corner of the screen.

  2. Press enter or the magnifying glass icon.

  3. Click on the property in the list that appears at the bottom of the screen.

  4. Select your parcel on the map. An information box should pop up.

Legend:

  • The brown hatch area is the Paso Basin boundary.

  • The red area is the updated area of severe decline.

To see the map legend:

  1. Select "Layers" in the bottom left corner.

  2. Select the "+" next to "Planning".

  3. Select the "+" next to "Impacted Groundwater Basins".

© 2018 by County of San Luis Obispo Countywide Water Conservation Program.