Update 02/11/15: The problems with California's underground injection control program are far worse than originally reported. It has now been revealed that California regulators with DOGGR not only permitted hundreds of wastewater injection wells but also thousands more wells injecting fluids for “enhanced oil recovery” into aquifers protected under the federal Safe Drinking Water Act.
Original post: The fallout from the ongoing review of California’s deeply flawed Underground Injection Control program continues as new documents reveal that state regulators are investigating more than 500 injection wells for potentially dumping oil industry wastewater into aquifers protected under the federal Safe Drinking Water Act as well as state law.
Last July, the U.S. Environmental Protection Agency (EPA) ordered an emergency shutdown of 11 wastewater injection wells in California. In October, nine of the wells were confirmed to have been illegally dumping wastewater into protected aquifers.
Now a letter from Steve Bohlen, the State Oil and Gas Supervisor for California’s Division of Oil, Gas & Geothermal Resources (DOGGR), sent to the EPA on August 18, 2014 but just revealed via a Freedom of Information Act request, shows that the problem is much more widespread than previously disclosed to the public.
A copy of the letter was shared with DeSmogBlog by the Center for Biological Diversity. “EPA has confirmed to us and to the San Francisco Chronicle that Steve Bohlen’s list shows 532 wells believed to be injecting into protected aquifers,” according to Patrick Sullivan, a spokesperson for the CBD.
Under federal law, any aquifer with water that contains less than 10,000 parts-per-million of total dissolved solids (such as salt and other minerals) is protected. Sullivan told DeSmog that the 532 wells are all injecting wastewater into water that is either cleaner than 10,000 ppm TDS or with unknown TDS. CBD has mapped all of the injection wells in question.
“We know that at least 170 of these wells were drilled into aquifers with TDS of below 3,000 — which means they are suitable for drinking water,” Sullivan says. “Hundreds more are injecting into aquifers below 10,000 TDS, which is water that likely could be made usable.”
In response to the revelations, CBD sent a letter to the EPA demanding an immediate shutdown of all oil industry injection wells in the state that are injecting wastewater into protected aquifers.
“Because the state has failed to protect our water or uphold the law, action by the EPA Administrator is legally required,” the letter states. “In the midst of an unprecedented drought and when so many Californians lack access to safe, clean drinking water, it is outrageous to allow contamination of drinking and irrigation water to continue.”
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