4.3.5. Deposition Volumes
Tailings deposition into the Upper Mundic Gully TSF was modelled using Muck3D to estimate the
maximum available tailings storage and to develop the construction staging of the embankment. The
estimated volumes for the two embankment stages are presented in Table 28 including sufficient
storage to contain the PMP runoff.
Table 28. Estimated Tailings Storage
Elevation (m
Tailings beach
Tailings Storage (Mm 3 )
Tailings
Water Storage (Mm 3 )1
Stage
RL)
(m RL)
Storage (Mt)
1
360
350.3
1.15
1.26
1.32
2
390
386.8
8.09
8.9
1.32
Total
NA
NA
9.24
10.16
1.32
(1) Required PMP storage does not include operational pond volumes
Resultant tailings beach surface stage-storage curves are presented in Figure 27 to Figure 30.
Figure 27. Stage 1 Tailings Beach Surface
94
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