U.S. EPA Contaminated Site Cleanup Information (CLU-IN)

U.S. Environmental Protection Agency
U.S. EPA Technology Innovation and Field Services Division
Characterization, Cleanup, and Revitalization of Mining Sites

Training and Events


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Upcoming Internet Seminars | Upcoming Meetings | Archived Internet Seminars, Videos, and Courses

Upcoming Internet Seminars

  • EPA Office of Research and Development's Office of Science Policy Mine and Mineral Processing Virtual Workshop
    October 2, 9, 16, and 23, 2019 | 1:00-3:00 pm EDT

    This 4-part virtual workshop series sponsored by EPA's Office of Research and Development will address current challenges at mining and mineral processing sites. The featured topics are Site Characterization, Emergency Management, Innovative Technologies and Strategies, and Big Data.

  • NRDAR: Remediation and Restoration in the Lower Basin of the Coeur d'Alene River
    October 16, 2019 | 12:00-1:00 pm EDT

    A combination of approaches is being used to facilitate prioritization of cleanup and restoration actions at the Bunker Hill Mining and Metallurgical Complex Superfund site, while engaging project partners. These approaches include: multiple objective decision analysis (MODA) tools, modeling tools, evaluations of innovative remedial technologies, and iterative data collection. MODA techniques were used to engage with the Restoration Partnership and other key stakeholders for input and value identification, and to provide feedback on the sensitivity of project selection criteria and scoring. EPA is combining modeling, iterative data collection aand other tools to manage the initial selection of pilot projects and remedial/restoration design concepts. The importance of dovetailing remediation and restoration, starting with prioritization of projects through design and construction, will be discussed.

  • Considerations for Bulkheading Draining Mine Tunnels
    October 25, 2019 | 2:00-4:00 pm EDT

    Historically, underground hard rock mines are abandoned after the ore is mined out. Water then seeps into the fractures, mined out veins, and other mine workings where it combines with oxidized minerals to form sulfuric acid which then brings heavy metals into solution which then flows out as acid mine drainage (AMD). The AMD impacts the surrounding streams by providing a steady influx of acidic metal rich water, as well as surges of AMD from the collapse of underground dams where AMD has pooled. Such surges and sometimes all flows can be controlled by installing concrete plugs (bulkheads) in strategic locations. This webinar will address underground bulkheads in general and will present specific examples from Region 8 of bulkhead installations and water quality changes, including those at Dinero Tunnel, Pennsylvania Mines, and Captain Jack Mill sites.

  • Substrate Longevity and Long-Term Performance of Biochemical Reactors for Passive Treatment of Mine-Impacted Water
    November 25, 2019 | 1:30-3:00 EST

    Webinar will address biochemical reactors (BCRs) as important treatment units within passive treatment systems designed for mine impacted water. The presentation will detail the configuration, operation and performance of a typical BCR system and provide data and observations from two long-term (>8 years) operating BCR systems. This webinar is one in a series hosted by the Society of American Military Engineers (SAME) Denver Post and Philadelphia Post along with the U.S. Environmental Protection Agency, based on presentations at recent Design and Construction Issues at Hazardous Waste Sites (DCHWS) Symposiums.

Look here for future updates on offerings in the Mining Sites Webinar series.

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Upcoming Meetings

  • 2019 San Juan Mining & Reclamation Conference
    September 24-26, 2019 | Silverton, Colorado

    The goal of this conference is to educate the public and other stakeholders on the science and policy of mining, mine lands remediation, and water quality as it relates to non-point source pollution, improving mining practices, and addressing water quality impairments through workshops, field tours, and presentations.

  • Remediation Technologies Symposium 2019
    October 16-18, 2019 | Fairmont Banff Springs, Canada

    This conference, which encompasses the latest innovations in soil and groundwater remediation, will include some presentations on remediation of abandoned uranium mine sites and analyzing surface water quality at legacy mines. The opening keynote is titled, "Saskatchewan's Uranium Mining Legacy."

  • 26th Annual BC MEND Metal Leaching/Acid Rock Drainage Workshop
    December 4-5, 2019 | Vancouver, British Columbia

    Leading practitioners will illustrate challenges and best practices in metal leaching and acid rock drainage. The focus of the workshop will be field-scale research and operational experience. Case studies will be drawn from mine sites around the world.

  • Mine Design, Operations & Closure Conference
    May 3-7, 2020 | Fairmont, Montana

    This conference typically includes sessions on land rehabilitation, reclamation, and remediation. Check back for more information as it becomes available.

  • 37th Annual Meeting of the American Society of Mining & Reclamation
    June 7-11, 2020 | Duluth, Minnesota

    The theme of this conference is, "Transforming Pits and Piles into Lakes and Landscapes."

  • International Conference on Acid Rock Drainage (ICARD)
    August 30 - September 3, 2021 | Brisbane, Australia

    The International Conference on Acid Rock Drainage (ICARD) is the leading acid drainage event. It is held every 3 years and brings together mining industry representatives, consultants, researchers and regulators from all continents.

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Archived Internet Seminars, Videos, and Courses

 CLU-IN Mining Sites Webinar Series

Other CLU-IN Webinars

 Workshops on Hardrock Mine Geochemistry and Hydrology

EPA's Region 10, ORD, and OSRTI hosted a three-part workshop series on hardrock mine geochemistry and hydrology in 2013. The goals included enhancing participants' understanding of the key issues regarding water chemistry predictions, identifying potential sources of contamination from mine sites, and describing practices to mitigate or reclaim facilities to protect natural resources. Presenters included experts from EPA Headquarters, Regions, and ORD; the U.S. Geological Survey; and the U.S. Forest Service. The workshops were open to all agencies, tribes, consultants, and the general public, and are now archived and available for streaming. Supplementary materials and resources provided by the instructors are also available for download below.

Workshop 1 - Evaluating Water Chemistry Predictions at Hardrock Mine Sites

   » Detailed presentation descriptions and full archive


Workshop 2 - Mining Influenced Waters - Pathways for Off-Site Releases

   » Detailed presentation descriptions and full archive

Workshop 3 - Sampling, Monitoring and Remediation at Mine Sites

   » Detailed presentation descriptions and full archive


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