BISMARCK, N.D. (AP) — The North Dakota Oil and Gas Division reports a valve leak has spilled 105,000 gallons of treated produced water in northwestern North Dakota.

The release was reported Monday at Justin SWD 1 saltwater disposal well, about five miles (eight kilometers) southwest of Tioga.

Bosque Disposal System, LLC reported Tuesday that 2,500 barrels of treated produced water was released due to a valve/piping connection leak. The product was contained on-site and at the time of reporting all of the spill had been recovered.

A state inspector has been to the location and will monitor any additional cleanup required.

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The produced water was mixed with hydrochloric acid which was neutralized with sodium bicarbonate as part of the cleanup. Hydrochloric acid is a commonly used acid in oil and gas production.