Wambo Coal AEMR 2011-2012 - Peabody Energy

2010-2011 AEMR
1.3.7 Subsidence Management Plan
WCPL’s Underground operates under an approved
Subsidence Management Plan (SMP). The SMP for
First Workings was approved by the DTIRIS in
October 2005 with mining commencing in
November 2005. The SMP for Second Workings
was lodged in March 2006 and was approved by the
DTIRIS on the 11 December 2006. This SMP
covers underground mining activities until 1/11/2013
which includes longwall panels 1 through to 6 (LW
1-6). The SMP also includes the management of
environmental impacts associated with subsidence.
Mine subsidence is discussed further in Section
3.16.
1.3.8 Emplacement Area Approvals
Table 1.4 outlines previous emplacement approvals
issued under Section 126 Approvals for
Emplacement Areas (Dams). These emplacement
areas can be seen in Figure 1.4. The Hunter Pit
emplacement is the only current operational area.
Rehabilitation of past emplacement areas continued
this reporting period with these activities outlined in
Section 2.5.1.3.
DTIRIS a Section 101 amendment, replacing the
original Section 127.
A Section 100 Application for raising the tailings
level in the Hunter Pit Dam was submitted to the
NSW Department of Trade and Investment at the
end of the 2011-2012 reporting period. The raising
of this wall is part of the WCPL life of mine tailings
strategy which will extend the tailings facility life
through to 2014.
1.3.9 EPBC Approval
WCPL was granted approval (EPBC 2003/1138) in
accordance with Environment Protection and
Biodiversity Conservation Act, 1999 (EPBC Act) for
the expansion of the mine on the 23 November
2004. In accordance with the approval, WCPL have
prepared a Flora and Fauna Management Plan to
address the conditions set out in EPBC 2003/1138.
1.4 Mine Contacts
Table 1.5 outlines the contact details for site
personnel responsible for mining, coal preparation,
rehabilitation and environmental management at
WCPL.
A Section 127 Approval to Discontinue
Emplacement Areas was granted on the 8
September 2004 for the North East Tailings Dam
(NETD). In July 2009 WCPL submitted to the
Table 1.4 – Emplacement Area Approvals
Date
Granted
Area Details Current Status
Area No. 1 Whynot (South) Area Rehabilitated.
28/08/1991
Area No. 2 Ridge Open Cut and Cut 11N areas Capping complete.
Area No. 3
Ridge Portal/Western Open Cut
Ridge Portal rehabilitated.
Western Cut temporary
rehabilitated.
Area No. 4
This comprised sub areas A and B as below:
02/12/1993
Area A
A south east extension of the North
East Open Cut
Now called Charlies Hole. This
area was rehabilitated during the
reporting period
Area B Original slurry drying pond area Rehabilitated.
North Whynot Void - Rehabilitated.
08/05/1995
Area ‘C’ Open cut approval area number 8/8A
Used as mine water storage. Not
planned to be used for tailings.
Hunter Pit Commenced filling in 29/03/2004 Current disposal area.
23/01/2004 Area No. 1 Whynot (South) Area Rehabilitated.
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