BISMARCK — About 63,000 gallons of produced water spilled in rural Bowman County, North Dakota, on Aug. 30, according to a news release from the North Dakota Department of Environmental Quality.
Produced water, or brine, is a mixture of saltwater, oil and sometimes, drilling fluids, that is created as a byproduct during oil and gas production.
Oklahoma-based Continental Resources reported the spilled occurred at Kay Central Tank Battery, about 9 miles south of Marmarth, North Dakota, due to a tank valve malfunction.
The department did not indicate how much of the brine has been recovered by clean-up crews. Department officials will continue inspecting the site, according to the release.