Crews will this week start cleaning up yards filled with lead and arsenic in Black Eagle left over from decades of smelting and refining at the ACM Smelter and Refinery in an effort that will likely run through at least next summer. The cleanup of soils at Operational Unit 1 of the Superfund site on […] The post Soil cleanup at portion of Black Eagle Superfund site to start this week appeared first on Daily Montanan.