Notice
Information request
management strategies. Without incorporating the SSG TSF as a tailing’s dams into the water balance model or formally excluding it from the approved activities, the representation of water inputs, outputs, and storage cannot be considered accurate or reflective of the site's authorised operations. Consequently, the risks and findings presented in the report cannot be reliably validated.
b) Confirm whether there is an intention to construct the SSG TSF. If so, provide a timeframe for the proposed construction which must consider the extreme failure events identified and the required revision of the dam break and consequence category assessments if both facilities are built (WSP, 2025a) 5 . c) Confirm and provide detail whether the reclassification of the SSG TSF as ‘an additional mine area’ aligns with the authorisation currently stated in the EA. d) If the SSG TSF is no longer intended to function as a tailing’s storage facility, confirm whether it will be decommissioned or repurposed. Provide an assessment against the environmental values, impacts and risks to environmental values and the management and monitoring measures, and rehabilitation information as a result of this change. If Heritage Minerals Pty Ltd plans to maintain the SSG TSF as ‘an additional mine area’, the SSG TSF should be removed as an authorised tailings storage facility from the EA as its purpose will no longer align with the current approved activities. e) If SSG TSF remains classified as ‘an additional mine area” in the model, provide an assessment that includes a risk evaluation of the potential interactions and implications of removing the SSG TSF as a tailing’s storage facility from the water balance model. Provide an evaluation of how this change impacts the water management risks associated with the site's approved activities. f) If SSG TSF is intended to be maintained as a tailing’s storage facility, update and include this approved activity into the water balance model and present the findings.
5 WSP, Upper Mundic Gully TSF Stage 1 and 2 DBA and CCA, July 2025
Page 6 of 20 • ESR/2016/3447 • Version 4.02 • Last reviewed: 29 OCT 2025
Powered by FlippingBook