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Yucaipa Valley Hydrogeology

Welcome to the U.S. Geological Survey (USGS) Yucaipa Valley Hydrogeology website. This site provides hydrologic data collected or compiled by the USGS in the Yucaipa area; some additional data may be available from the USGS database National Water Information System (NWIS).

Project Chief: Greg Mendez
Phone: 619-225-6176

USGS Data Map

Data Map Options

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Note: Drawing time may vary with connection speed and browser and charts must be displayed from the USGS installed wells page.

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 (Turning this layer on may disable map functions.)
USGS earthquakes

USGS Data Map

Our data map does not work well on mobile devices. Please switch to a larger display or use the USGS Installed Wells for information about individual multiple-depth well sites.

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Questions about Yucaipa Valley Hydrogeology? Please contact Greg Mendez (email: or send a letter). 619.225.6176

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Page Last Modified: Thursday, 06-Apr-2017 13:48:01 EDT