Field sampling is ongoing at D-H mine and smelter sites

Courtesy Photo/EPA Leah Butler<br>
EPA Project Manager Dave Seter looks at the concrete dam in Chaparral Gulch, Humboldt. EPA is investigating the volume and composition of the mine tailings that have accumulated behind the dam for years.

Courtesy Photo/EPA Leah Butler<br> EPA Project Manager Dave Seter looks at the concrete dam in Chaparral Gulch, Humboldt. EPA is investigating the volume and composition of the mine tailings that have accumulated behind the dam for years.

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