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DEQ unveils 30% remedial design for Blacktail Creek riparian actions; design funds set at $20.5 million
Summary
The Montana Department of Environmental Quality presented a 30% remedial design for Blacktail Creek, detailing dewatering, excavation and reconstruction plans. DEQ said it received $20,500,000 in settlement funds for the work and estimated about 135,000 cubic yards of material will be removed.
Alex Ruzovich, environmental project officer with the Montana Department of Environmental Quality, presented the 30% remedial design for the Blacktail Creek Riparian Actions at the Butte‑Silver Bow Council meeting on Oct. 22, saying DEQ will lead removal of contaminated mine tailings and restore creek and wetland habitat.
"DEQ received a settlement of $20,500,000 in order to implement the remediation," Ruzovich told commissioners, identifying Blacktail Creek as part of the larger Butte Priority Soils Operable Unit (BIPSU). He described two linked components: DEQ‑led waste removal and channel and flood‑plain reconstruction, and an Atlantic Richfield‑led groundwater hydraulic control system to capture and treat groundwater.
Design details and scope: Ruzovich said the project will lower the water table on the site by roughly 7 feet using extraction wells, perimeter trenching and…
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