Documents released this week as part of the EPA’s investigation into the state of California’s underground injection control program show that in addition to hundreds of wastewater injection wells there are thousands more wells illegally injecting fluids from “enhanced oil recovery” into aquifers protected by the federal Safe Drinking Water Act.
At a time when California is experiencing extreme and prolonged drought, you might expect state regulators to do everything they can to protect sources of water that could be used for drinking and irrigation. But that simply isn’t the case.
For every barrel of oil produced in California — the third largest oil-producing state in the nation, behind Texas and North Dakota — there are 10 barrels of wastewater requiring disposal. California produces roughly 575,000 barrels of oil a day, meaning there are nearly 6 million barrels of wastewater produced in the Golden State on a daily basis — a massive waste stream that state regulators have utterly failed to manage properly.
In meeting a February 6 deadline imposed by the EPA to provide a plan for dealing with the problems rampant in its Underground Injection Control (UIC) Class II Program, regulators at California’s Division of Oil, Gas, and Geothermal Resources (DOGGR) revealed that nearly 2,500 wells have been permitted to inject oil and gas waste into protected aquifers, a clear violation of the Safe Drinking Water Act.
More than 2,000 of the wells are currently active, with 490 used for injection of oil and gas wastewater and 1,987 used to dispose of fluids or steam used in enhanced oil recovery techniques like acidization and cyclic steam injection.
“The Division acknowledges that in the past it has approved UIC projects in zones with aquifers lacking exemptions,” DOGGR told the EPA in a letter dated Feb. 6.
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