Tui Mine Remediation Project Details about the mine The Tui mine is an abandoned mine in the Kaimai Range of New Zealand on the western slopes of Mount Te Aroha. Following the cleanup of the former Fruitgrowers Chemical Company site at Mapua, it was deemed to be the most polluted site in the world. the mine owner is Norpac mining. the mine is started in 1960 and its extract copper, lead, and zinc sulfides. the mines works were stopped in 1973. the mining company dumps waste rocks ore and mine tailings behind a dam. the tailing contains a significant amount of Zinc and Cadmium. because of the waste dumping, the water of the pool is completely contaminated and acidic .in 1997 there are no natural plants in the pool due to the high contamination. Environmental issues occurred due to the Tui mine v The heavy metals lead and cadmium was leaching from the dam to the Tunakohoia stream which flows through the Te Aro...