January 9, 2013

Category: News

This year, the U.S. Society on Dams ?(USSD) is holding a series of workshops associated with mine tailings dams as part of its annual meeting and conference. Carrolette Winstead will be presenting a session on the current regulatory environment associated with the closure of tailings dams.

This workshop will be held on February 14 in Phoenix. It will feature presentations by industry experts, followed by panel discussions, on the technical and regulatory aspects of sustainable closure of tailings dams as well as possible applications to coal ash impoundments and other slurried wastes.

An environmental permitting specialist, Carrolette joined M&A in 2011. In addition to working for various environmental consulting firms in the Phoenix and Denver area, she spent 3 years managing ADEQ’s Aquifer Protection Permit Unit, where she was responsible for mining and industrial permits.

Agenda — Closure of Tailings Dams

Workshop: Thursday, February 14, 2013

7:30–8:00 am Workshop registration
8:00–9:30 am Briefing: Field trip to Old Dominion and Miami Unit No. 2, safety share, introductions, and plan of the day Andrew Watson (MWH)
9:30–10:00am Coffee break
10:00–10:30 am Sustainable Closure Principles and Design Criteria Tatyana Alexieva (MWH)
10:30–11:00 am Current regulatory environment Carrolette Winstead (M&A, former ADEQ Mining Unit Lead)
11:00 am –12:15 pm Case studies: Physical closure and construction implementation (Idarado, CO; Resurrection, CO; Blue Lagoon, Bulgaria) Patrick Corser  (MWH)
12:15–1:00 pm Lunch break
1:00–1:30 pm Case study: Flexibility in impoundment closure to manage wet conditions — northern Appalachian coal mine Robert Shusko (D’Appolonia)
1:30–2:30 pm Case study: Mission mine closure Stephen Taylor (MWH) and Thomas Klempel (Asarco)
2:30­–3:00 pm Case Study: Application of ameliorative and adaptive approaches to revegetation of mining wastes Michael Bellitto (Golder)
3:00–3:30 pm Coffee break
3:30–4:00 pm Case study: Panna Maria mine closure —water management and sustainability Clinton Strachan ( MWH)
4:00–5:00 pm Group discussion Andrew Watson (MWH) facilitator

Field Tour: Friday, February 15, 2013

Site visit to the Old Dominion and Miami mines (2-hr drive)


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