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YCS promotes and enhances awareness, appreciation, and understanding of the Yukon’s ecosystems.

Research

YCS supports the conservation and protection of the Yukon’s natural resources.

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YCS supports humane, sustainable and responsible management of wildlife

Advocate

YCS is a watchdog for development and researches smart solutions for our territory.

Infograms, Royalties and Technical Papers

Infograms

YCS has developed some infograms (information sheets) about water contamination caused by mining. These are intended to familarize concerned citizens with what levels of contaminants in water that comes from mine sites that companies should be aiming for. They represent the Maximum Authorized Concentration in a Grab Sample that should be authorized. Sometimes mines refer to the Maximum Authorized Monthly Mean Concentration. This is typically half of what these infograms show. NOTE: These concentrations are not municipal water drinking standards...instead they are essentially end-of-pipe water standards for an operating mine, and they represent the very maximum. Most mines should be aiming for levels below what these infograms show. 

The figures used in the infograms are from Column four of the Canadian Metal Mining Effluent Regulations (MMER): Maximum Authorized Concentration in a Grab Sample (Column Four is the highest number of the MMER regs)...except for Selenium which is from Canadian Council of Ministers of the Environment (CCME) Water Quality Guidelines for the protection of Aquatic Life.

Contaminants addressed include the most common environmental contaminants associated with Yukon mining operations:

•             Arsenic (with YCS logo / without YCS logo)

•             Copper (with YCS logo / without YCS logo)

•             Cyanide (with YCS logo / without YCS logo)

•             Lead (with YCS logo / without YCS logo)

•             Nickel (with YCS logo / without YCS logo)

•             Selenium (with YCS logo / without YCS logo)

•             Zinc (with YCS logo / without YCS logo)

•             Total Suspended Solids (with YCS logo / without YCS logo)

•             Radium (with YCS logo / without YCS logo)

If you want higher quality images, or PDF versions, contact the Yukon Conservation Society mining analyst.

Royalties

YCS does an occassional op-ed piece in the Yukon News. These pieces have focussed on royalties. Here are some recent ones:

Further to the newspaper articles, there are a couple of papers and submissions to government that migth be of interest to those concerned with the Yukon mining royalty regime:

 

Technical Papers

U.S. COPPER PORPHYRY MINES: The track record of water quality impacts resulting from pipeline spills, tailings failures and water collection and treatment failures.
EARTHWORKS, July 2012 (Revised 11/2012). Posted with permision of Patagonia Area Resource Alliance.

Acid Mine Drainage: David Coil, PhD1, Erin McKittrick, M.S.2, Andrew Mattox3, Niki Hoagland4, Bretwood "Hig" Higman, PhD5, Kendra Zamzow6, contact@groundtruthtrekking.org, Last Modified: 18th January 2013. Posted with permission of Patagonia Area Resource Alliance.

Documents

Acid Mine Drainage

Acid mine drainage (AMD) refers to the outflow of acidic water from a mining site. In most cases, this acid comes primarily from oxidation of iron sulfide (FeS2, also known as pyrite or "fool's gold"), which is often found in conjunction with valuable metals. Acid mine drainage is a major problem with many hardrock mines, including almost all mines where the metal ore is bound up with sulfur (metal sulfide mines).

U.S. COPPER PORPHYRY MINES

The track record of water quality impacts resulting from pipeline spills, tailings failures and water collection and treatment failures.

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