Two environmental groups sued California regulators Thursday to stop oil companies from injecting wastewater into potentially usable aquifers beneath the state’s drought-ravaged Central Valley.
The suit, filed by the Sierra Club and the Center for Biological Diversity, claims the California agency that oversees oil fields is breaking the law by letting companies pump wastewater from their drilling operations into aquifers that the regulators were supposed to protect. The injections were the subject of a Chronicle investigation in February.
The state’s Division of Oil, Gas and Geothermal Resources (DOGGR) has moved to end the practice but has given oil companies until 2017 to shut down many of the injection wells. Environmentalists want all the wells closed immediately. The groups sued Thursday to overturn newly adopted regulations from the division that allow the continued injections.
“California has a drought, and we need to protect all the potential sources of drinking water we have, and DOGGR is allowing the continued pollution of aquifers,” said Will Rostov, a staff attorney for Earthjustice, which filed the suit on behalf of the environmental groups. “We want them to comply with the law, and the law is pretty clear — no more injections.”
The division declined to comment on the lawsuit.