and the artificially created OCP. The modifications to the Upper Mundic Gully landscape are described further in Section 4.1 of this report. The waste rock dump, referred to as the ‘Western Dump’ occupies a significant portion of the Upper Mundic Gully valley. This feature is not listed in Table A1 of the EA. There is no evidence that rehabilitation methods have been applied to this feature and it is likely, based on water quality sampling results from the ephemeral dam in Upper Mundic Gully, that the Western Dump is contributing Acid Rock Drainage (ARD) seepage into the environment. The Upper Mundic Gully TSF is proposed to tie into portions of the Western Dump to the extent practicable, ultimately sealing the currently exposed rock face, reducing potential ARD seepage into the surrounding environment.
Project number: 25B061
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