CASGEM Groundwater Basin Prioritization

In January 2014, DWR conducted 5 workshops to introduce draft Basin Prioritization results and solicit public comments. The Basin Prioritization results, finalized in June 2014, address the comments received and include the most recent available groundwater use data.

Basin Prioritization is being used to align resources in the implementation of the CASGEM Program. Due to limited resources, DWR will focus on the High and Medium priority groundwater basins first.

The list of High and Medium priority groundwater basins that are not monitored under the CASGEM program will be provided to State water grant programs. Although CASGEM is a voluntary program, not participating could result in ineligibility for a State water grant or loan. Grant eligibility will be determined by the respective grant program.

Final Basin Prioritization findings indicate that 127 of California's 515 groundwater basins and subbasins are High and Medium priority. These basins account for 96% of California's annual groundwater pumping and supply 88% of the population which resides over groundwater basins. The remaining 388 basins are Low and Very Low priority and comprise 75% of the groundwater basins in the State.

Data and Resources

Additional Info

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Last Updated July 1, 2016, 20:39 (UTC)
Created July 1, 2016, 20:35 (UTC)


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