Rio Tinto Kennecott pledges monthly particulate data, outlines new dust-response plans for Copperton

Rio Tinto Kennecott representatives briefed the Copperton Town Council on May 20, outlining operations and new measures to reduce dust impacts in the community.

Laura Ingersoll and Sean Daly described mine components, current copper-production operations, weed-and-vegetation management, ongoing tailings monitoring and water-truck dispatching. They said Rio Tinto has implemented Trigger Action Response Plans (TARPs) to guide responses to concentrator dust events and is deploying additional dust-mitigation technologies. The company also said it has expanded staffing for community response and encouraged residents to report dust and submit photos through the company hotline.

The update responded to council and resident concerns about odors and particulate matter. Council Member Tessa Stitzer and Council Member Kathleen Bailey asked specifically about sulfur-like smells, locations of particulate monitoring at Copperton and High Country Estates, and how residents could access air-quality reports. Rio Tinto agreed to provide monthly particulate measurements and to supply a comparative graph showing regional monitoring trends so the town can track local readings against broader baselines.

Rio Tinto representatives described causes of recent dust events, citing talc-rich material moving through the concentrator as one contributing factor, and reiterated that the community hotline is the primary channel for complaints. The company said it will include the monthly particulate data and comparative graph in its communications and welcomed continued photo and date-stamped reports from residents to help target responses.

The presentation concluded with the council thanking company staff for the update and for committing to more regular data sharing. No formal action was taken at the meeting; council members asked staff to maintain communication channels and requested the promised data for review at future meetings.