Extreme ag pumping threatens California’s main water artery

February 6, 2020
by Lois Henry
Lois Henry

California Aqueduct subsidence

A report completed in March 2019 and released Dec. 31 by the Department of Water Resources shows the effect of agricultural groundwater pumping on subsidence beneath the California Acqueduct.

CLICK HERE for the report. (Patience needed! It takes a while to load.)


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Heavy groundwater pumping to sustain a massive increase in orchards and vineyards in the San Joaquin Valley has brought the state’s main water artery to the brink of permanent damage, according to report released by the Department of Water Resources Dec. 31.

If groundwater pumping near the California Aqueduct continues at current levels through the next, inevitable drought, the land will sink further potentially resulting in “non-recoverable compaction and permanent land subsidence,” reducing the Aqueduct’s

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