California again rejects groundwater protection plans as inadequate
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Farmers in California’s San Joaquin Valley didn’t stop over-pumping groundwater when doing so contaminated local water supplies with arsenic, and they didn’t stop when the valley’s floor began sinking underneath them, by a foot per year in some places. State officials have long hoped to stop them with regulations—and last week, they decided that several local regulatory plans weren’t strong enough. (No paywall)