British Columbia Mine Reclamation Symposium

Identification and mitigation of high zinc discharges to the environment from the water diversion system at the Kemess South Mine Bent, Harold; Frostad, Scott; Davidson, Scott Charles


The Water Diversion System at Kemess Mine in north-central British Columbia was found to be releasing total zinc concentrations that exceeded the site water quality objective of 0.03 mg/L. The source of the zinc was determined to be sections of the buried diversion system constructed of galvanized steel. To mitigate this problem, the mine examined several options before deciding on the insertion of a smaller diameter Polyethylene pipe within the original conduit. The insertion of the Polyethylene pipe was completed in November 2000. Monitoring of water quality since the insertion has shown that the zinc water quality objective has been consistently met but for a few exceptions.

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