A pump leak caused a spill of 500 barrels, or 21,000 gallons, of brine Sunday at a well site in Golden Valley County, according to a statement released Monday by the North Dakota Oil and Gas Division.

Foundation Energy Management LLC reported the brine spill occurred at a well about 11 miles north of Beach.

A state inspector has been to the site and confirmed the spill was contained to the well site, said Oil and Gas Division spokeswoman Katie Haarsager. Cleanup is underway.