EARTH SYSTEMS Environment · Water · Sustainability www.earthsystems.com.au www.earthsystemswater.com www.acidmetalliferousdrainage.com During rehabilitation works at a decommissioned base- metal mine, elevated zinc was detected in supernatant waters within the Tailings Storage Facility (TSF). Earth Systems was commissioned by the state government department managing the site to undertake contract treatment to lower the total Zn concentrations to permit discharge in line with proposed rehabilitation works. As part of managing a decommissioned base-metal mine site, the State Government of Victoria commenced a reha- bilitation strategy with the aim of reinstating the site, as close as practicable, back to its previous landform, minimise envi- ronmental impacts from the site and maintai

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