Description
Criteria
Units
Basis Value
Source
Tailings average settled dry density Tailings beach slope Tailings storage requirement
-
t/m 3
1.10
WSP
-
%
0.5
Heritage Minerals
-
Mt
Maximum feasible storage
Heritage Minerals
Water Management Minimum freeboard -
m
1
WSP
Wet season water storage allowance
1:100 AEP 3 month wet seasons rainfall depth 120 hr probable maximum precipitation 1:1,000 AEP 72 hr storm
mm
1,260
WSP – Wattle Gully Dam Break Report
Design flood event
mm
2,620
WSP – Wattle Gully Dam Break Report
Extreme storm storage Minimum decant pond depth
mm
1,020
WSP – Wattle Gully Dam Break Report
-
m
No allowance
-
5.2 Ancillary Infrastructure To support both TSF construction and operation, ancillary infrastructure is required to be applied for in the EA amendment. The proposed ancillary infrastructure includes: ∕ Pipeline corridor; ∕ Laydown yard; ∕ Onsite nursery; ∕ Topsoil stockpile; and ∕ Extension of haul road. All locations have been positioned on areas already disturbed by historical mining activities (including access tracks) to reduce potential environmental harm associated with disturbing new areas. Ancillary locations are shown on Figure 23.
Project number: 25B061
Page 69
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