USGS - science for a changing world

San Antonio Creek Valley Monitoring

In order to understand the integrated hydrologic systems, many different types of data are being gathered from both the surface water and groundwater system. Learn about these data types and explore them with the interactive map.

San Antonio Creek Monitoring Networks

Cick on the "Layers" button to toggle various data overlays. Click the home button () to reset map extent and/or reset the Explanation pane.

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Groundwater Basin


Vandenberg Air Force Base

Barka Slough
(USGS National Hydrology Dataset, 1:24,000/1:12,000 scale)


Water-Level Contours (1943); contour interval is variable

Actively Monitored (Quarterly) Water-Level Data

Periodic Water-Level Data

      Real-Time Water-Level Data

Water Quality

Drilling Sites

Water-Table Monitoring Well Sites

Multiple-Well Monitoring Sites

Surface Water Sites


Streambed Electrical Resistance Sensors (SERS)

Temperature Rods (TROD)