System News
November 29, 2023: Bug fixes and enhancements have been deployed for the following pages:

  • Edit Import Reading
  • Edit Well
  • Elevation Readings Grid
  • Map Viewer
  • Wells / Organization Wells Grid
  • User Sign In Window
August 30, 2023: The new CASGEM Online System is Live! Please update your bookmarks to https://casgem.water.ca.gov
External Resources

PDFCASGEM Guides

System guides and manuals are available at the CNRA Open Data Platform

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WebsiteCASGEM Program

Information about the CASGEM program, including DWR contacts and brochures, are available here

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Website California's Groundwater (Bulletin 118)

The State's office publication on the occurrence and nature of groundwater in California

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WebsiteCalifornia's Groundwater Live

California's latest groundwater information and conditions

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DataData and Tools

Accessible water data to make informational management decisions

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PDFFrequently Asked Questions

Frequently asked questions regarding the CASGEM program

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WebsiteStatewide Groundwater Management

DWR's role in groundwater management

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