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N.D. (AP) – A Canadian pipeline company is planting more than 100 trees around a pump station along the Sheyenne River Valley to help hush noise at the facility and quiet complaints from nearby residents.

Calgary-based TransCanada Corporation officials say the tree-planting project began this week along the Keystone pipeline near Fort Ransom.

The Keystone has been operating for three years and transports crude from Canada through seven states. The pipeline is separate from the company’s proposed Keystone XL pipeline that still needs the Obama administration’s approval to proceed.

Bruce Pantzke owns a farm less than a mile from the pump station and says it emits a sound similar to “fingernails on a chalkboard.” Pantzke says the tree buffer might help but he’d rather see the pump station enclosed with sound-deadening insulation.