BISMARCK — An estimated 83,000 gallons of produced water spilled at a gas plant in Burke County, N.D., and impacted nearby farmland after an abandoned disposal well began leaking, according to a news release from the state Department of Environmental Quality.

Produced water is a mixture of saltwater, oil and sometimes, drilling fluids, that is created during oil and gas production.

The spill occurred at the Lignite Gas Plant about 10 miles from the Canadian border. The plant is owned by Calgary, Alta.-based Steel Reef, LLC. The spill happened on Sunday, Nov. 24, and Steel Reef reported it the same day, but the department did not announce it until Monday, Dec. 2.

Department officials will continue inspecting the site and monitoring remediation efforts.