Slide 1: Coeur Mining Risk Profile Summary – Tailings Dams
Coeur Mining Risk Profile Summary – Tailings Dams Proactive elements that set Coeur apart from the problem dams The most stable construction methods Downstream construction keyed to bedrock High quality, Fewer operations with tailings dams – from 3 Low geotechnically stable construction and rockfill
Slide 2: Coeur Mining Overview - Tailings Dams
Coeur Mining Overview - Tailings Dams Tailings Palmarejo Kensington Golden Cross Facility Year Constructed 2010 2010 1991 Status Operational Operational Closed and reclaimed (1999) Downstream zoned rockfill dam, Downstream constructed Downstream constructed rockfill Construction upstream face lined
Slide 3: Coeur's Operational Risk Reduction – Tailings Dams
Coeur’s Operational Risk Reduction – Tailings Dams Coeur’s Current Practices to Maintain Low Risk Tailings Management Operations •Downstream Construction Method - Most stable, progressively builds away from tailings, towards downstream •Kensington and Palmarejo embankments are keyed into bedrock •De
Slide 4: Kensington Tailings Dam Management
Kensington Tailings Dam Management TTF – Pre Stage 3 Construction (2017) Kensington Mine Lower Slate Lake Tailings Dam (AK00308) is a downstream constructed Geosynthetic-Faced Rockfill Dam (GFRD), keyed to bedrock. The processed mine ore and tailings solids are benign and do not produce acid rock dr
Slide 5: Palmarejo Tailings Dam Management
Palmarejo Tailings Dam Management Palmarejo’s tailings dam is a downstream rockfill with the upstream face lined with HDPE, and it is keyed to bedrock. Palmarejo tailings are classified as non- potentially acid generating (non-PAG) and non- metal leaching. Prior to placement in the dam, the tailings
Slide 6: Jay Gear, VP Environment, Health & Safety
Jay Gear, VP Environment, Health & Safety “At Coeur, our tailings dam risk profile is low. Across our operations, we have multiple layers of internal and external controls in place to protect our people, our communities and our planet.” “In 2019, Coeur supplemented our annual review of risks and mit