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https://www.mtenvironmentaltrust.org/newsite/wpinhere/wp-content/uploads/2016/04/METG-logo-transparent.png00projects@coldspringdesign.comhttps://www.mtenvironmentaltrust.org/newsite/wpinhere/wp-content/uploads/2016/04/METG-logo-transparent.pngprojects@coldspringdesign.com2016-09-22 17:05:452025-03-22 15:36:312016 Fact Sheet: East Helena Cleanup—A Model of Environmental Protection and Sustainability, September 2016
2022 Sampling Methodology Addendum: Unfumed Slag Processing and Removal Groundwater Monitoring Plan, Feb 2022
2021 Water Resources Monitoring Report
2021 East Helena Corrective Measures Implementation Work Plan, Aug 2021
2021 Unfumed Slag Processing and Removal – Groundwater Monitoring Plan, August 2021
2021 Groundwater and Surface Water Corrective Action Monitoring Plan, June 2021
2020 Water Resources Monitoring Report, June 2021