California's Groundwater Live: Groundwater Levels

This story map includes the latest groundwater level information from throughout California. Information for groundwater levels is based on the California Department of Water Resources groundwater level database, which includes all groundwater level measurements collected for the Sustainable Groundwater Management Act ( SGMA ) and the California Statewide Groundwater Elevation Monitoring ( CASGEM ) programs. Click on the links in the banner above to explore the interactive and user-friendly dashboards, that detail current groundwater levels and how they have changed over time in California. For a glossary of water terms used on this site click  here .

The interactive dashboard below contains information about recent groundwater level measurements collected across California. The map displays the results of the most recent groundwater level measurement taken at each monitoring location within the last 18 months. Only the most recent measurement at each well is shown in this dashboard. The dashboard includes a map, summary chart, and indicator, along with various filtering options. Wells displayed in the map and chart are categorized by depth to water below the groundwater surface with blue colors representing shallower depths and reddish hues deeper depths. The total number of wells that meet the given selection criteria are displayed in the indicator located in the the lower right portion of the dashboard. Explore the current groundwater levels by county, groundwater basin, hydrologic region, depth to water category, well depth, or recent time period.

Additional information about this dataset and including how to download it to your computer can be found on the  California Natural Resources Open Data Platform. 

Navigation tip: exit out of the interactive maps and continue scrolling by clicking on the white border to the right or left of the map.

 Click here to Return to the California's Groundwater Live Homepage.  Scroll down to view additional dashboards related to groundwater levels.

The interactive dashboard below contains information about current groundwater level conditions across California. A statistical analysis is done to compare the most recent measurement to the previous 10 years of measurements for that location for the same month to determine whether it is above or below normal. Only the most recent measurement at each well is shown in this dashboard. The dashboard includes a map, summary chart, and indicator, along with various filtering options. Wells displayed in the map and chart are categorized by percentile class comparing the most recent measurement at that well to the last 10-years of measurements for that month with blue/purple colors representing above normal groundwater level, green representing normal and red/brown colors representing below normal conditions. The total number of wells that meet the given selection criteria are displayed in the indicator located in the the lower right portion of the dashboard. Explore groundwater level conditions by county, groundwater basin, hydrologic region, depth to water category, well depth, or recent time period.

Additional information about this dataset and how to download it to your computer can be found on the  California Natural Resources Open Data Platform .

Navigation tip: exit out of the interactive maps and continue scrolling by clicking on the white border to the right or left of the map.

 Click here to Return to the California's Groundwater Live Homepage.  Scroll up or down to view additional dashboards related to groundwater levels.

The interactive dashboard below contains information about how groundwater levels have changed over time in California. Well measurements are separated into spring (January - May) and fall (June-November) seasons for this analysis. Each well is assigned one measurement per season. If multiple measurements are taken in the same season, the highest recorded measurement is selected for the spring period while the lowest recorded measurement is selected for the fall period. The dashboard includes a map, summary chart, and indicator, along with various filtering options. Wells displayed in the map and chart are categorized by change in groundwater level with green colors representing positive groundwater level change, yellow representing no significant change and red/orange colors representing negative groundwater level change. The total number of wells that meet the given selection criteria are displayed in the indicator located in the the lower right portion of the dashboard. Explore groundwater level changes by county, groundwater basin, hydrologic region, fall or spring season, 1, 3, 5, or 10-year change or well depth.

Additional information about this dataset and how to download it to your computer can be found on the  California Natural Resources Open Data Platform .

Navigation tip: exit out of the interactive maps and continue scrolling by clicking on the white border to the right or left of the map.

 Click here to Return to the California's Groundwater Live Homepage.  Scroll up or down to view additional dashboards related to groundwater levels.

The interactive dashboard below contains information about long-term groundwater level trends in California. A statistical analysis is done using the Mann-Kendall trend test to determine whether each monitoring well has had an increasing, decreasing or stable trend based on the previous 20 years of records for spring measurements (taken between January and June). The dashboard includes a map, summary chart, and indicator, along with various filtering options. Wells displayed in the map and chart are categorized by trend in groundwater level with green colors representing positive groundwater level trends, yellow representing no significant trend and red/orange colors representing negative groundwater level trend. The total number of wells that meet the given selection criteria are displayed in the indicator located in the the lower right portion of the dashboard. Explore groundwater level changes by county, groundwater basin, hydrologic region, groundwater level trend category or well depth.

Additional information about this dataset and how to download it to your computer can be found on the  California Natural Resources Open Data Platform  . 

Navigation tip: exit out of the interactive maps and continue scrolling by clicking on the white border to the right or left of the map.

 Click here to Return to the California's Groundwater Live Homepage.  Scroll up to view additional dashboards related to groundwater levels.