San Diego Hydrogeology

No comprehensive geologic and hydrologic study has been made of the San Diego area. As a result it is difficult for state and federal agencies, water purveyors, and consultants to understand the effects of urbanization on the local surface-water, ground-water, and biologic resources or to critique ideas and opportunities for additional ground-water development. This study will provide the integrated geologic and hydrologic knowledge necessary in this important and highly visible area of the United States.

The two primary objectives of this study are (1) to develop an integrated, comprehensive understanding of the geology and hydrology of the San Diego area, focusing on the San Diego Formation and the overlying alluvial deposits, and (2) to use this understanding to evaluate expanded use of the alluvial deposits and the San Diego Formation for recharge and extraction.

Recent Activity

Map of completed and planned
multiple-depth well sites in the San Diego Hydrogeology project.

• Click to view this map in PDF format
• Click to view alternate map view in PDF format.