Keystone Pipeline Leaks 210K Gallons Days Before XL Approval Decision

PIERRE, S.D. (AP) — TransCanada Corp.’s Keystone pipeline leaked an estimated 210,000 gallons of oil onto agricultural land in northeastern South Dakota, but state officials don’t believe the leak polluted any surface water bodies or drinking water systems.
State officials and pipeline operator TransCanada Corp. disclosed the leak Thursday, and the company shut down the pipeline.
TransCanada said it activated emergency response procedures after detecting a drop in pressure resu