5. Overall Assessment of Results of Rainbow Trout Acute Lethality and Daphnia magna Monitoring Tests in 2013
Overall, the metal mining sector has achieved a compliance rate of 96.8% with respect to effluent that is non-acutely lethal to rainbow trout. A low compliance rate was achieved by the Vezza Mine facility in Quebec.
In 93.6% of the Daphnia magna monitoring tests, the mortality rate was less than the targeted level of 50%.