Global Acid Rock Drainage (gard) Best Practices for amd control & Treatment Terrence Chatwin, inap &

Global Acid Rock Drainage (GARD) Best Practices for AMD Control & Treatment

• Terrence Chatwin, INAP &

• Keith Ferguson, Sustainability Engineering

• WEST VIRGINIA MINE DRAINAGE TASK FORCE SYMPOSIUM

• March 31, 2009

• Morgantown, WV

Summary of Presentation

• What is the GARD Guide

• The Need for a GARD Guide

• Mining Industry’s Commitment to Solving ARD Problems

• The Ultimate Solution – You

• The GARD Guide – Scope

• The GARD Guide – Structure

• Wiki Demonstration

Be flexible to accommodate site-specific issues

• Be flexible to accommodate site-specific issues

• Be consistent and promote a systematic approach

• Use proven, field tested technologies

• Founded on a risk-based approach

• Endorse a pro-active approach encouraging acid reduction and control at the source

• Be a “how to” guide and not a regulatory tool or a design manual

• Address the full life cycle of a mine

• Avoid duplication and build on existing guidelines and compendia

Roman Portal in Spain with ARD

Iron Mountain, CA

Flambeau

ARD Costs

• USA - $5 billion to $72 billion

• Canada - $1.3 to $3.3 billion

• Australia - $1 billion

• ARD remediation is expensive
• Prevention is the best solution

Mining’s Commitment to Communities and Stakeholders

• “While share holder value is our primary driver, every decision the Board makes takes into account the needs and expectations of all our stakeholders; … We have numerous examples that demonstrate our absolute commitment to improving the quality of life of the communities we work with and to minimising harm to the environment.”

• - Don Argus, Chairman BHP Billiton

First Phase

• First Phase

• Beta version prepared by Golder Associates and undergoing review
• Wiki structure developed for Guide
• Further expert input and targeted workshops planned for remainder of 2008

• Second Phase

• Broad stakeholder review of draft through INAP website (starts February 2009)

• Third Phase

• Update, publish and rollout by June 2009

• Fourth Phase

• training sessions on use of Guide
• updates and continuous improvement of Guide

Mining People

• “I believe the first key for the path forward for the mining industry is to emphasize the value of developing our people to sustain the mining industry in the future.“

• - Paul Dowd, Newmont Managing Director (Retired)

YOU Are The Solution

• Education

• Experience

• Tools

• Capacity

• Technical & Communication Skills

• Commitment