Enbridge’s Line 5 pipeline resumed operations Monday, three weeks after a broken valve released 1.3 million gallons of natural gas liquids near Saxon in Iron County. The spill happened Aug. 25 as a truck moved forward and struck the valve while crews were working on a controversial project to reroute the pipeline through northern Wisconsin. Enbridge then began work to bypass the damaged valve and restore service. The company completed that work despite a Wisconsin Department of Natural Resources notice of noncompliance issued last week. The notice ordered Enbridge to stop construction because the work had proceeded without the required permitting, according to state officials. Enbridge said work at the spill site is continuing, including efforts to provide safe access, conduct environmental testing and carry out remediation. The company said it has coordinated with federal and local agencies and is working with the DNR on permitting and environmental conditions at the site. In a statement, Enbridge said ongoing monitoring had found no effects on wildlife. The company also said tests of surface water and a nearby residential well showed no impacts, while monitoring wells had not detected contamination. Soil and water monitoring will continue, and the company said it plans to test, remove and properly dispose of soil from the trench. Enbridge has argued that restoring Line 5 quickly is necessary because the pipeline supplies fuel to 10 refineries and propane production facilities serving millions of people across the Midwest and Great Lakes regions. Environmental advocates, members of the Bad River Band of Lake Superior Chippewa and elected officials have continued to call for the pipeline’s permanent shutdown. They say the spill demonstrates the broader environmental risks posed by Line 5, which carries fossil fuels across northern Wisconsin and has faced years of opposition over its route and potential impact on water and tribal lands. The restart leaves the company and state regulators at odds over whether the work needed to return the pipeline to service was properly authorized. Environmental monitoring and cleanup activities remain underway at the Saxon site.