7 February 2015. Regulators in California, the country's third-largest oil-producing state, have authorized oil companies to inject production fluids and waste into what are now federally protected aquifers more than 2,500 times, risking contamination of underground water supplies that could be used for drinking water or irrigation, state records show.

SACRAMENTO BEE

http://www.sacbee.com/news/business/article9345830.html

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