Notice
Information request
ensure the long-term stability of the facility and the prevention of groundwater contamination after closure from the facility.
The information requested above must demonstrate the UGM TSF will not further impact waters environmental values of the receiving environment of the Mount Morgan Mine. Consideration can be given to the approved activities as a whole, however, reduction of the contaminant load to the receiving environment as a result of the approved activities must be demonstrated via modelling or other supporting evidence. Complete numerical groundwater modelling for the UGM TSF. The groundwater model report to be submitted must include: a) A hydrogeological model of the UGM TSF and its receptors, including:
13
Groundwater modelling
In the absence of a groundwater model, it is significantly challenging to assess impacts to groundwater from the proposed UGM TSF. A numerical groundwater model must be developed to assess the risks and potential impacts with the resulting report to be provided.
i.
Geological cross sections.
ii.
Aquifer connectivity and flow dynamics.
iii.
Recharge and discharge zones.
iv.
The potential interactions between surface water groundwater.
This model must be based on field verified data and information within the UGM TSF area and proximity.
b) The basis for the numerical groundwater model parameters, assumptions and model design. It must be demonstrated the model domain extent is sufficient to the extent necessary to understand potential impacts from the UGM TSF.
c) Steady-state and transient calibration results (with sufficient monitoring points surrounding the proposed UGM TSF).
d) An operational scenario which reflects the proposed design of the UGM TSF (including expected foundation conditions and any other design elements that could influence the impact to groundwater).
Page 12 of 20 • ESR/2016/3447 • Version 4.02 • Last reviewed: 29 OCT 2025
Powered by FlippingBook