An overview of the site layout is presented in Figure 1.1.
Figure1.1
Mt Morgan mine site key features
1.3 TSF Characteristics
A summary of the proposed Upper Mundic Gully TSFStage 1 and Stage 2 characteristics are presented in Table 1.1.
Table1.1
Summary of the proposed TSF characteristics
Item(1)
Stage 1
Stage 2
Unit
Total volume of tailings deposit
1.15
9.24
Mm³
Total tonnage of tailings deposit
1.26
10.16
Mt
Minimum crest elevation
360
390
RL m
Crest width
10
10
m
Upstream embankment slope
2.5
2.5
1V:zH
Downstream embankment slope
2.5
2.5
1V:zH
(1) Retrieved from deposition design models.
Project No PS213278 Upper Mundic Gully TSF Stage 1 and 2 DBA and CCA Mount Morgan Gold Mine Heritage Minerals
WSP May 2026 Page 2
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