Since 2009, DWR's CASGEM Program has tracked seasonal and long-term groundwater elevation trends statewide.
Recently, DWR has been working on important updates to the CASGEM Online System.
Become a data collector for the CASGEM Program
Stay up-to-date on the latest CASGEM Program information
View information for wells and their related elevation readings
View basin monitoring information for organizations participating in CASGEM