Closure Risk

ID Risk Number Category Hazard Event Consequence
1 PRMC-RSK-2022-00011 PHYSICAL_SAFETY Unrestricted public or stock access to the East Pi... Person or stock enters the void area and falls fro... Fatality; permanent reputational and legal consequ...
2 PRMC-RSK-2022-00012 WATER The East Pit lake does not behave as the assumed t... Groundwater and rainfall inflow exceed evaporation... Long-term water quality impact beyond the lease; p...
3 PRMC-RSK-2025-00021 EROSION Concentrated runoff on rehabilitated dump batters ... A rainfall event above the design return period co... Loss of growth medium and vegetation; failure to s...
4 PRMC-RSK-2025-00022 GEOCHEMICAL Saline and sulfate-bearing seepage from the waste ... Infiltration through the dump mobilises stored sal... Exceedance of environmental authority limits; fail...
5 PRMC-RSK-2025-00025 LEGAL_FINANCIAL The closure cost estimate materially understates t... Contractor rates escalate faster than the 3.8 per ... Financial assurance shortfall; unbudgeted closure ...
6 PRMC-RSK-2026-00031 SOCIAL The landholder does not accept transfer of the sou... Agreement on the water storage transfer is not rea... Removal cost not in the estimate; relinquishment d...
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