Master Well Index & Water Levels
Western maintains extensive records on both the master well index and water levels for the Santa Ana Watershed. Access to the master well index or the water level Information files require filling out a request form.
Cooperative Well Measuring Program for Spring 2008
This report contains data from 74 cooperating agencies and firms on nearly 4,500 wells in the upper Santa Ana, San Jacinto and Santa Margarita Watersheds. Some data sets go back to 1993.