May 18, 2015 7:20 PM by News Staff
SAN FRANCISCO (AP) - California regulators are adding to their list of oil and gas wells that may be contaminating federally protected supplies of drinking water.
The moves comes in an ongoing state review of more than 2,500 oilfield wells that state regulators improperly allowed to inject fluid into protected underground water aquifers.
State regulators tell the U.S. Environmental Protection Agency in a letter released Monday that 53 of those oilfield wells may be contaminating nearby water wells.
Twenty-three of those water wells are in Kern and Tulare counties and have already been shut down. The state says it will let oil companies do more testing before regulators decide whether to immediately shut the other 30.
Regulators also Monday disclosed an additional 3,604 oilfield wells allowed to carry out high-pressure drilling outside approved oilfields.
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