San Diego Hydrogeology

USGS Data Map

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Multiple-depth well sites

Groundwater sites
NWIS groundwater sites (well)

Surface-water and spring sites
NWIS surface-water sites (estuary, lakes, streams, & spring)

Project study area
Project developed data

Project study area subbasins
Project developed data

Geology from CA Geological Survey
These datasets will be replaced soon.

Recent Earthquakes
USGS earthquakes

Questions about San Diego Hydrogeology? Please contact Wes Danskin (email: or send a letter). 619.225.6132