Transcript Document

Tahera Environmental Monitoring
Commitments Summary
• Use TK in monitoring; cooperate with communities
• Collect reliable information that will:
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Allow detection of a change in aquatic biota caused by
the Project
Test predictions of Project impacts
• Focus on components that are good indicators
• Use accepted sample design and methods
• Invest sufficient effort in order to detect change
Tahera Environmental Monitoring
Commitments Summary
• Geotech
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Dam stability
C1 Diversion
C4 Ditch
Waste dumps
Stockpiles
Tahera Environmental Monitoring
Commitments Summary
• Mine Wastewater Discharge
– Monitor mine waste management facilities
• seeps
• groundwater
• effluent
Tahera Environmental Monitoring
Commitments Summary
• Water Quality
– Add water quality monitoring site(s) downstream
Jericho River on IOL
– Add 2nd control site in adjacent drainage basin
– Monitor C3 and Carat lake O2 prior to mine discharge
Tahera Environmental Monitoring
Commitments Summary
• Aquatic Effects Monitoring
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Potential Impacts Monitored
• Nutrient loading
• Sedimentation
• Contaminants
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Components
• Sedimentation (rate of sedimentation)
• Periphyton (biomass and species diversity)
• Phytoplankton (biomass) and zooplankton (species
diversity)
• Benthic invertebrates (abundance and species diversity)
• Fish (metals, community and population structure)
Tahera Environmental Monitoring
Commitments Summary
• Air Quality
– PM-10 and PM-2.5 at the mine site
– Indirect vegetation monitoring
• lichen
• transects at right angles to dust sources
Tahera Environmental Monitoring
Commitments Summary
• Wildlife
– Cooperate in monitoring of Bathurst caribou
herd
– Raptors – annual nesting success
– Record and report wildlife events/responses
Tahera Environmental Monitoring
Commitments Summary
• Post closure monitoring
– Performance of PKCA and other waste
structures
– Water quality
– Reclamation success