Long Beach-based Pacific Pipeline Systems LLP has agreed to pay a fine of $1.3 million related to a 2005 oil pipeline break in northern Los Angeles County, the U.S. Environmental Protection Agency and the Justice Department announced Wednesday.

The company also agreed to shut down a 70-mile stretch of the pipeline until that portion can be strengthened or relocated.

The break in the Bakersfield to Los Angeles pipeline stemmed from a March 2005 landslide in the Tehachapi Mountains about 60 miles north of downtown Los Angeles. More than 140,000 gallons of oil spilled, with most of it flowing into Pyramid Lake alongside Interstate 5. The oil spill was contained before it penetrated drinking water supplies.

Pacific Pipeline Systems was charged with violating the federal Clean Water Act. The company agreed to pay a $1.3 million civil penalty and to immediately halt the flow of oil through a 70-mile segment of the pipeline that passes through geologically unstable areas. Oil flow can resume once the pipeline segment has been reinforced or relocated.

A call to Pacific Pipeline Systems was referred to parent company Plains All American Pipeline L.P. of Houston. Calls made to Plains All American Pipeline were not immediately returned.