California allowed oilfield dumping into drinking water (w/video)
BAKERSFIELD — 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.
While some of the permits go back decades, an Associated Press analysis found that nearly half of those injection wells — 46 percent — were permitted or began injection in the last four years under Gov. Jerry Brown, who has pushed state oil and gas regulators to speed up the permitting process. And it happened despite warnings from the U.S. Environmental Protection Agency since 2011 that state regulators were failing to do enough to shield groundwater reserves from the threat of oilfield pollution.
In California, "we need a big course correction. We need to get the system back in compliance," said Jared Blumenfeld, regional administrator for the EPA. "Californians expect their water is not being polluted by oil producers ... This poses that very real danger."
The injections are convenient to oil companies because drilling brings up 13 gallons of wastewater for every gallon of petroleum. And one of the easiest disposal methods is simply to send that waste back underground.
The federal government is now demanding that state officials take immediate steps to find and deal with any contamination and end oil-industry operations in all aquifers set aside for families and farms.
Those water supplies are especially vital because California, the nation's most populous state and its agricultural leader, is now entering the fourth year of a historic drought.
State officials acknowledge that regulators erred, citing confusion about the boundaries of aquifers and oil fields or long-standing state misinterpretations of federal water-safety requirements. The vast majority of the permits were granted after the federal Safe Drinking Water Act in 1974.
For some of the permits, "we don't know how this got approved," said Jason Marshall, deputy director of the California Department of Conservation, which directly regulates the state's oil and gas industry.
In one case, regulators signed off on an application to inject wastewater into a federally protected aquifer, then realized their error and raced to the site.
"He had done injection for about 20 minutes," Marshall recalled. "We just said, 'Stop! You can't do that. Stop.'"
So far, state officials say they have no evidence of water contamination. But worries persist.
"The problem with just monitoring (for contaminants) is once you see it in the well, it's too late," said Timothy Parker, an independent Sacramento-based groundwater expert who has worked for the state Department of Water Resources and in the oil industry. "It's very difficult to clean up an aquifer once it's contaminated."
Over the summer, state oil and gas regulators sent the EPA lists of permits that allow oil companies to inject waste or production fluid into aquifers that were protected by the federal government. In December, the EPA gave the state until Friday to draft a plan for halting the practice and bringing the state into compliance with the 1974 Safe Drinking Water Act. The state has until 2017 to stop injections into any aquifer that has not been specifically designated for oil-industry waste disposal or drilling.
Officials are determined to both "manage the transition" back into compliance with federal law and to "maintain a robust oil industry," said Steve Bohlen, head of oil, gas and geothermal resources for the California Department of Conservation.