A Canadian pipeline company's attempt to muffle noise by planting trees around a pump station in southeast North Dakota isn't working and may have made things worse, neighbors say. Calgary-based TransCanada Corp. last month planted more than 100, 6-foot tall spruce trees around its Keystone pump station to quiet complaints from nearby residents in Fort Ransom, which has fewer than 80 people. The company also installed insulation around pipes to help silence noise at the facility that contains...
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