Technical Reports
Featured
Investigation and Documentation of Acidic Mining Exploration Drill Cuttings at the Pebble Copper– Gold Mineral Prospect, Southwe
Chambers & Zamzow — September 2020 Download Report
During exploration drilling of the Pebble copper–gold–molybdenum (Cu–Au–Mo) deposit, drilling wastes were disposed of directly on the landscape or passed through unlined sumps prior to disposal. The ore and host rock are rich in sulfides, which weather to sulfuric acid with consequent metal leaching. Oxidized cuttings were visually evident, and confirmed with laboratory and field testing to have a pH of 2.7–4.3.
RESPONSIBLE MINING
Sexton et al - Canada's mines pose transboundary risks - Science 24Apr20.pdf
Canada’s mines pose transboundary risks - Science Magazine
Sexton, Chambers, et al — April 2020
Go-NoGo Risk of Catastrophic Consequence - Chambers Jun14.pdf
Go/No-Go Risk of Catastrophic Consequence (Preliminary Assessment)
David M Chambers — June 2014
Framework for Responsible Mining Executive Summary.pdf
Framework for Responsible Mining - Executive Summary
Marta Miranda, David Chambers, and Catherine Coumans — October 2005
Framework for Responsible Mining.pdf
Framework for Responsible Mining - Full Report
Marta Miranda, David Chambers, and Catherine Coumans — October 2005
Framework Espanol - Resumen Ejecutivo.pdf
Marco Básico para una Minería Responsable: Una Guía para la Mejora de Estándares - Resumen Ejecutivo Framework for Responsible Mining - Executive Summary (En Espanol)
Marta Miranda, David Chambers, and Catherine Coumans — October 2005
GENERAL MINING RESEARCH
CSP2 Perpetual Treatment Position Paper - Chambers Aug18.pdf
Perpetual Water Treatment - Position Paper
David Chambers — August 2018
Review of Haitian Capacity and Preparedness - Levit 2Sep13-2.pdf
Mining in Haiti: Review of Haitian Capacity and Preparedness
Stuart M Levit — September 2013
Review of Haitian Capacity and Preparedness - Syntheseetude capacite et preparation - Levit 2Sep13.pdf
L’exploitation minière en Haïti: Étude de la capacité et de réactivité haïtienne - Synthèse (Mining in Haiti: Review of Haitian Capacity and Preparedness - Executive Summary)
Stuart M Levit — September 2013
Long Term Risk of Releasing Potentially Acid Producing Waste Due to Tailings Dam Failure - ICARD 23May12.pdf
Long Term Risk of Releasing Potentially Acid Producing Waste
David M Chambers — May 2012
CIRI Underground Coal Gassification Report - Stratus 27Jan10.pdf
Potential Environmental Impacts of the Proposed CIRI Underground Coal Gasification Project, Western Cook Inlet, Alaska
Prepared for the Center for Science in Public Participation by Stratus Consulting Inc — January 2010
CBM Code in BC - CSP2 - 1.25.05.pdf
Technical Review of the Proposed Code of Practice for the Discharge of Produced Water from Coalbed Gas Operations in British Columbia
Prepared by Tom Myers, Ph.D; David Chambers, Ph.D; and, Amy Crook, M.S. — January 2005
Underwriting Mine Closure Risk - Jan05.pdf
Corporate Ethics Monitor Article The Costs of Mining: Underwriting Mine Closure Risk
David Chambers — January 2005
Fact_Sheets--Trace_Elements_in_Mining_Waste.pdf
Fact Sheets - Trace Elements in Mining Waste (Arsenic, Cadmium, Copper, Cyanide, Lead, Mercury, Selenium, Zinc)
Alexandra Amonette (edited by David Chambers) — December 2004
Environmental Impacts of Sand and Gravel Operations in New Mexico.doc.pdf
Environmental Impacts of Aggregate and Stone Mining New Mexico Case Study
Steve Blodgett (edited by David Chambers) — January 2004
Questa-Molycorp Subsidence Impacts - Blodgett Feb 2002.pdf
Block Caving Impacts - Molycorp Mine & Case Studies
Steve Blodgett — February 2002
Subsidence and Hydrologic Environmental Impacts.pdf
Underground Mining - Subsidence & Hydrology Report
Steve Blodgett & James Kuipers — February 2002
LAD Guidelines.pdf
Land Application Disposal - (LAD) Guidelines Paper
David Chambers — September 2000
FINANCIAL ASSURANCE
Alaska Reclamation Bonding - Sep05.pdf
Alaska Reclamation Bonding (Summary) - September 2005
David Chambers — September 2005
Financail Assurance for Hardrock Mine Cleanup.pdf
Financial Assurance for Hardrock Mine Cleanup
James Kuipers & Sarah Zuzulock — October 2003
MINE / PROJECT SPECIFIC
Cumulative Impacts of Espinar Province Mines - Levit CSP2 3Jul13.pdf
Glencore Xstrata’s Espinar Province Mines: Cumulative Impacts to Human Health and the Environment
Stuart M Levit — July 2013
Groundwater & Surface Water Contamination at the Flambeau Mine - Chambers & Zamzow 5Jun09.pdf
Groundwater & Surface Water Contamination at the Flambeau Mine
David Chambers & Kendra Zamzow — June 2009
CSP2_Comments_Ahafo_South_12_05.pdf
Technical Review - Ahafo South Project (Ghana) Environmental & Social Impact Statement
Stuart Levit & David Chambers — December 2005
Sepon Copper ESIA Comments.pdf
Review of the Technical Aspects of the Sepon Copper Project Environmental and Social Impact Assessment Addendum Volume 2
David Chambers — February 2003
PEBBLE MINE
ZAMZOW & CHAMBERS - POTENTIAL IMPACTS DUE TO MINERAL EXPLORATION - 19JUL19 ENVIRONMENTS-06-00084-2.pdf
Potential Impacts due to Mineral Exploration
Zamzow & Chambers — July 2019
CHAMBERS & ZAMZOW - DOCUMENTATION OF ACIDIC MINING EXPLORATION DRILL CUTTINGS- 4JUL19 ENVIRONMENTS-06-00078-2.pdf
Documentation of Acidic Mining Exploration Drill Cuttings
Chambers & Zamzow — July 2019
CSP2 PEBBLE DRILL HOLE RECLAMATION - CSP2 3NOV16.pdf
Pebble Drill Hole Reclamation - 2016
Kendra Zamzow & David M Chambers — February 2017
PLP_White_Paper_1_Peer_Review_Comments_Chambers_23Oct12.pdf
Peer Review Comments - PLP White Paper No. 1: Mitigating Risk in the Design and Construction of Tailings Dams in Alaska – Jeremy P. Haile, P.E. and Ken J. Brouwer, P.E., Knight Piésold Ltd., July 20, 2012
David Chambers — October 2012
PLP_White_Paper_2_Peer_Review_Comments_Chambers_23Oct12.pdf
Peer Review Comments - PLP White Paper No. 2: Development of Stable Waste Rock Piles in Alaska, Les Galbraith, Knight Piesold, Vancouver, B.C., July 20, 2012
David Chambers — October 2012
PLP_White_Paper_3_Peer_Review_Comments_Chambers_23Oct12.pdf
Peer Review Comments - PLP White Paper No. 3: Active Metal Mines of the Fraser River Basin and Fish - Case Studies, Oscar Gustafson, Knight Piesold, Vancouver, B.C., July 20, 2012
David Chambers — October 2012
WQR - TNC_Water_Quality_Report_2011 - Final Nov14.pdf
Surface Water Quality near the Pebble Prospect, Southwest Alaska, 2009-2010
Kendra Zamzow — June 2011
Critique of PLP Water Quality Data - Zamzow May11.pdf
Critique of Pebble Limited Partnership Preliminary Water Quality Data for the Pebble Prospect, Alaska
Kendra Zamzow — May 2011
TAILINGS DAM FAILURES
Increasing Number of Tailings Facility Failures - Chambers Oct19.pdf
Increasing Number of Tailings Facility Failures, Navigating the Decade 2020-2029
Chambers — October 2019
Bowker & Chambers - Supercycle - Environments-04-00075 21Oct17.pdf
In the Dark Shadow of the Supercycle Tailings Failure Risk & Public Liability Reach All Time Highs
Lindsay Newland Bowker & David M Chambers — October 2017
Post-MountPolleyTailingsDamSafety.pdf
Post-Mount Polley Tailings Dam Safety in Transboundary British Columbia
David M. Chambers — March 2016
Mt Polley Tailings Dam Failure Report Summary - Chambers rev Aug15.pdf