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Land Subsidence Poses Risk to Water Infrastructure in California's San Joaquin Valley

USGS to hold press conference announcing a significant scientific report that has broad implications for future water supplies in California

A USGS scientists stands in front of a guage measuring the rate of land subsidence

Released: 11/18/2013 9:00:00 AM

Contact Information: Leslie Gordon, USGS
Phone: 650-329-4006

SACRAMENTO, Calif. - Extensive groundwater pumping from San Joaquin Valley aquifers is increasing the rate of land subsidence, or sinking, that is resulting in serious operational and structural challenges and repairs to water infrastructure, according to a new report by the U.S. Geological Survey.

This subsidence is reducing the capacity of the Delta-Mendota Canal, the California Aqueduct, and other canals that transport floodwater and deliver water to agriculture, cities, industry and refuges, causing damage and requiring expensive repairs. To help public agencies and resource managers minimize risk and damage to California's infrastructure, the USGS is studying and providing information on groundwater conditions and land subsidence in the San Joaquin Valley.


Press conference to announce release of scientific report and discuss results of study on subsidence in California's San Joaquin Valley.


Michelle Sneed, USGS Hydrologist and lead report author
Eric Reichard, USGS California Water Science Center Director
Richard Woodley, U.S. Bureau of Reclamation Resources Manager


Thursday, November 21, 2013
10:00 a.m., Press conference in Sacramento
2:00 p.m., Optional site visit and photo opportunity at Delta-Mendota canal, south of Los Banos


Press Conference: U.S. Geological Survey, Modoc Hall, California State University Sacramento, Willow Conference Room 1, first floor
Parking adjacent to Modoc Hall, Daily permit ($6.00) available from machine in lot.

Photo Op/Site visit: Delta-Mendota canal where it crosses Russell Avenue, south of Los Banos. West of Firebaugh.

Links and contacts within this release are valid at the time of publication.


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