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Tahera Environmental Monitoring Commitments Summary
• Use TK in monitoring; cooperate with communities
• Collect reliable information that will:
• 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– 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• Potential Impacts Monitored
• Nutrient loading
• Sedimentation
• Contaminants
• 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