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Quarterly1 April – 3
1 INT
2 OC
2.1
2.2
2.3
3 AC
3.1
3.2
3.3
3.4
3.5
3.6
3.7
4 CO
5 REG
6 AS
FIGURE 1
FIGURE 2
Muswellbro
y Spontaneous30 June 2016
TRODUCTIO
CCURRENCE
No.1 Ope
No.2 Ope
Monthly
CTIONS AND
Mining ...
Drilling a
Waste Du
Coal Stoc
Prioritisa
Inspectio
Resourcin
OMMUNITY
GULATORY
SESSMENT .
No.1
No.2
ook Coal Comp
s Combustion
ON ..............
OF SPONTA
en Cut ........
en Cut ........
Treatment
D PROCEDUR
...................
nd Blasting
umps, Over
ckpiles ........
ation ...........
ons ..............
ng ..............
COMPLAIN
INTERACTI
..................
Open Cut Spo
Open Cut Spo
pany Limited
Report
..................
ANEOUS CO
..................
..................
– Capping,
RES TO PREV
..................
g .................
rburden and
..................
..................
..................
..................
NTS .............
ON ............
..................
ontaneous Co
ontaneous Co
Content
.................
OMBUSTION
..................
..................
Mining and
VENT OR CO
..................
..................
d Coal ........
..................
..................
..................
..................
.................
.................
.................
ombustion Ou
ombustion Ou
ts
.................
N ...............
...................
...................
d Water Inf
ONTROL SPO
...................
...................
...................
...................
...................
...................
...................
.................
.................
.................
utbreaks
utbreaks
..................
..................
...................
...................
usion Areas
ONTANEOU
...................
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s .................
US COMBUS
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Page i
............. 1
............. 1
............. 2
............. 2
............. 2
STION .... 3
............. 3
............. 4
............. 4
............. 5
............. 5
............. 5
............. 5
............. 5
............. 5
............. 6
Quarterly1 April – 3
1 I
The coaMeasurcombus The NSWthe Envreports
Spon
Area
Area
Area
Num
Miti
Imp This docplan sho A Spontrequiremoccurreremova
Exist
Drill
Min
Min
Emp
Emp
Coa
2 O
A summtreated is proviimplem
Muswellbro
y Spontaneous30 June 2016
INTRODUC
al seams mines. These stion has be
W Departmvironment Pon a quarte
ntaneous co
as capped;
as mined;
as under wa
mber of com
gation proc
rovements
cument addowing the lo
taneous Coments of thnce of spol, mitigation
ting open cu
ing and blas
ing of overb
ing of coal;
placement o
placement o
l stockpiles.
OCCURRE
mary of theis providedded in Tabented at MC
ook Coal Comp
s Combustion
CTION
ned by the Mmeasures en a long‐te
ent of TradProtection Aerly basis. T
ombustion;
ater infusion
mplaints rela
cedures; and
to these pro
dresses the ocation and
mbustion Mhe Developmontaneous n and preve
ut and unde
sting;
burden;
of overburde
of washery r
.
NCE OF SP
e areas affed in Table 1.ble 2. SectiCC.
pany Limited
Report
Muswellbrohave a
erm issue at
de and InvesAuthority (Ehis report id
n;
ating to spo
d
ocedures.
reporting p extent of c
Managemenment Consecombustionention in the
erground wo
en;
reject; and
PONTANE
ected by sp. The classifon 3 outlin
ook Coal Comhistory of t MCC since
stment ‐ DiPA), requiredentifies exi
ntaneous co
eriod of 1 Aurrently ide
nt Plan (SCMnt. The main and mane following a
orkings;
EOUS COM
ontaneous fication systnes the con
mpany (MCspontaneo
e the first op
vision of Ree MCC to pisting and n
ombustion;
April to 30 Juentified spo
MP) was prein objectivenage the efareas:
MBUSTION
combustiontem for spontrol proce
CC) operatioous combuperation com
esources anrovide sponew incidenc
une 2016. Tntaneous co
epared accoe of the SCMffect by id
N
n and the antaneous codures and
ns are the Gustion. Spommenced in
nd Energy (Dntaneous coces of:
Text is suppoombustion a
ording to thMP is to minentification
areas contrombustion treatments
Page 1
Greta Coal ontaneous n 1907.
DRE), and, ombustion
orted by a areas.
he specific nimise the n, control,
rolled and outbreaks s that are
Quarterly1 April – 3
SiteLoc
No.1 Op
No.2 Op
SUMMA
Total Ar
Total Ar
Classif
A
C
D
2.1
At the eactively Minor, a A map spontan
2.2
At the eactively Minor, a A map spontan
2.3
Table 3areas o2016).
Muswellbro
y Spontaneous30 June 2016
T
e Map cation
pen Cut
pen Cut
ARY
rea Affected
rea Controll
Ta
fication
A M
B M
C M
D Oc
No.1 Ope
end of the r affected byareas less th
displayingneous comb
No.2 Ope
end of the affected byareas less th
displaying neous comb
Monthly
3 provides of spontane
ook Coal Comp
s Combustion
Table 1: 1st Q
Intensity(A‐D
C
C
d
ed
able 2: Class
MAJOR: Op
MODERATE
MINOR: Vis
OTHER: Othcoal tars, su
en Cut
eporting pey spontaneohan 200m2 a
the approbustion in No
en Cut
reporting py spontanehan 200m2 a
the approbustion in th
Treatment
monthly speous combu
pany Limited
Report
Quarter Sum
Class D)
A
sification of
pen flame ‐ r
E: Visible ste
sible steam o
her physicaulphur crust
eriod there ous combusand showin
oximate loo.1 Open Cu
eriod thereous combuand showin
oximate loche No.2 Ope
t – Capping,
pontaneous ustion mana
mmary of S
Affected Ar(m2)
124
58
182
134
f Spontaneo
D
regardless o
eam or smo
or smoke –
al evidence ting, etc)
were 19 arestion. These g visible ste
cation, sizeut, is provid
e were 7 arestion. The tg visible ste
cation, sizeen Cut, is pro
, Mining and
combustioaged during
Spontaneou
rea CCo
ous Combus
Description
of area affec
ke ‐ area eff
area effecte
of sponta
eas located areas total
eam or smo
e and clasded in Figure
eas locatedtotal area weam or smo
e and classovided in Fi
d Water Inf
on managemg the repor
us Combusti
Controls ompleted
MiningCapping
Capping
stion Outbr
cted
fected is gre
ed is less th
neous com
in the No.1ling 100m2 ke”.
ssification oe 1.
in the No.was 58m2 anke”.
sification oigure 2.
fusion Areas
ment informrting period
ion
Area Co(m
eaks
eater than 2
han 200m2
mbustion (e.
1 Open Cut were classif
of area aff
2 Open Cutnd is classif
f areas aff
s
mation, detd (1 April –
Page 2
ontrolled m2)
8 60
66
200m2
.g. cracks,
that were fied as “C‐
fected by
t that was fied as “C‐
fected by
tailing the – 30 June
Quarterly1 April – 3
M
No 1 Op
Apr
May
June
No 2 Op
Apr
May
June
3 ACOMB
3.1
Generalinclude:
Coo
Rem
Min
Reteto ex
Limi
Sealthe
Seal
Remprac
In prepawere ide
Examoccu
Exambrow
Drill
Muswellbro
y Spontaneous30 June 2016
T
Month
pen Cut
ril 2016
y 2016
e 2016
pen Cut
ril 2016
y 2016
e 2016
ACTIONS USTION
Mining
l methods u:
ling the hea
moval of the
imisation of
ention of at xclude oxyg
iting exposu
ing of remaingress of o
ing drill hol
moving blasctically poss
aration for entified by:
mination ofurrences of
mination ofwn or dying
ing gas hole
ook Coal Comp
s Combustion
Table 3: Mo
Date of S
27 April
1 June
1 July 2
27 April
1 June
1 July 2
AND PRO
used by MC
ated area w
fuel by min
f areas of co
least a 12 mgen from are
ure of only s
aining unmioxygen;
es that inte
sted overbusible.
the mining
f previous spontaneou
f the surfac vegetation
es in future
pany Limited
Report
onthly Spon
Survey Ca
2016
2016
2016
2016
2016
2016
OCEDURES
CC to manag
ith water in
ning the coa
oal exposed
metre standeas not imm
small areas
ned underg
ersect under
urden abov
of areas af
informationus combust
ce for any and increa
work areas
ntaneous Co
Area of Sapped SinceSurvey (m
16
12
32
4
62
0
S TO PREV
ge mining i
nfusion befo
al as soon as
d to the air p
doff distancemediately re
of coal at an
ground wor
rground min
ve the un
ffected by s
n records, ion;
physical afsed surface
and ongoin
ombustion
SC e Last m2)
AM
Las
VENT OR
n areas pro
ore and afte
s it is expose
prior to min
e of un‐blasequired for m
ny time;
kings with c
ne workings
derground
spontaneou
accumulate
ffects of sp temperatu
ng gas moni
Manageme
Area of SC Mined Sincet Survey (m
4
4
0
0
0
0
CONTRO
one to spon
r mining;
ed;
ning;
sted overbumining oper
clay or inert
s; and
mine wor
us combusti
ed over the
ontaneous re; and
toring samp
ent
e m2)
AreaWater
(
15
19
16
20
13
13
OL SPONTA
ntaneous co
urden aboverations;
t material t
rkings as q
ion, higher
e last ten y
combustio
ples.
Page 3
a Under r Infusion (m2)
5,300
9,000
6,500
0,000
3,600
3,600
ANEOUS
ombustion
e workings
to prevent
quickly as
risk areas
years, for
n such as
Quarterly1 April – 3
The foloperatio
3.2
Areas idexisting Any blainto an Other pblast ho
Drill
Drill
Drillof 8
No s
Prev
Meahole
3.3
Preventoverbur
Minthe
Limimetthro
The prev
Rapheat
Cooduri
Rem
Min Water iprocedu
Muswellbro
y Spontaneous30 June 2016
llowing secons.
Drilling a
dentified as safe work p
st hole thatarea of spo
preventativeoles included
ing blast ho
ing standar
ing and loahours so lo
sleeping sho
venting the
asuring borees over a mi
Waste Du
tative measrden spoil e
ing of thin soverall carb
iting overbures to increough the spo
selective pvent oxidati
id burial of t;
ling the arng mining;
moval of coa
imising area
infusion or ure. The wa
ook Coal Comp
s Combustion
ctions deta
and Blasting
being affecprocedures
t is showingntaneous co
e measures d the follow
oles in coal s
rd of 1m sta
ding holes woad, tie and
ots in hot ho
ingress of a
ehole tempnimum of 2
umps, Over
sures used mplacemen
splits of coabon content
urden spoil ease stabilioil;
placement oon;
carbonaceo
rea affected
al affected b
as of expose
water spraater infusio
pany Limited
Report
il specific
g
cted by sponsuch as hot
g signs of sombustion i
used to redwing:
seams was a
nd off to to
within a mifire in 1 day
oles;
air to sponta
eratures fo24 hours bef
rburden and
to reducent areas incl
al down to 0t in overbur
emplacemety and com
of high carb
ous materia
d by spont
by spontane
ed coal, like
ays are to n process i
spontaneo
ntaneous cot‐hole loadin
pontaneousis bagged of
duce the inc
avoided;
op of coal se
nimum timey);
aneous com
r temperatufore loading
d Coal
e the incideude the foll
0.25 metresden spoil em
ent lifts undmpaction. T
bonaceous m
al to preven
aneous com
ous combus
ely to be affe
be used innvolves the
us combus
ombustion wng.
s combustioff or backfil
cidence of s
eams;
e period (ho
mbustion are
ure increaseg commence
ences of splowing:
s thickness, mplacemen
der normal This reduce
material by
nt the time t
mbustion w
stion before
ected by spo
n accordance continuou
stion contr
were worke
on or appealed.
spontaneou
ot hole prod
eas; and
es (3 tempees).
pontaneous
wherever pt areas;
conditions es the flow
deeply bur
that it is ex
with water
e the heatin
ontaneous
ce with theus pumping
rols for va
ed in accord
ars to be al
us combusti
duct has a s
erature logs
s combustio
practicable,
to height oof oxygen
rying this m
posed to ox
infusion be
ng can sprea
combustion
e relevant sof large am
Page 4
rious site
ance with
lowing air
ion within
sleep time
of all drill
on within
to reduce
of 10 – 15 and heat
material to
xygen and
efore and
ad; and
n.
safe work mounts of
Quarterly1 April – 3
mine wsurface.and witamount
3.4
Measurresidenc Coal in and satu
3.5
During tto indica
3.6
The OCTechnicareas idServices Outbreaare refe
3.7
The OCmachinebeen ide
4 C
There wsmoke r
5 R
Discussireportin
Muswellbro
y Spontaneous30 June 2016
water into t. This has thh reduced et of gases an
Coal Stoc
es taken tocy time in st
stockpiles surated with
Prioritisa
the reportinate to prod
Inspectio
CE inspects al Services dentified in s staff and/o
aks of sponterred to the
Resourci
CE is responery to undeentified.
COMMUN
were 31 corelated to sp
REGULATO
ions about ng period.
ook Coal Comp
s Combustion
the heatedhe effect ofenvironmennd odour ar
ckpiles
o prevent stockpiles to
subject to s water from
ation
ng period, auction staff
ons
the open staff inspeannual inspor productio
taneous comOCE for ins
ng
nsible for aertake cont
NITY COM
omplaints repontaneous
ORY INTER
spontaneo
pany Limited
Report
undergrouf cooling thental impact.e reduced.
spontaneouo a minimum
spontaneoum the water
areas requirthe order i
cut each cts the opepections, to on staff out
mbustion thspection and
allocating atrol works
PLAINTS
eceived refs combustio
RACTION
ous combus
und workine workings a. It has bee
us combustm.
us combusticart to prev
ring spontan which con
shift to ideen cut on a identify areline areas re
hat are repod corrective
and coordinfor outbrea
ferring to son) between
stion with
gs by way and coal sufen proven t
ion in coal
ion is spreavent further
neous comntrol works
entify areaa weekly baeas of sponequiring con
orted by thee action.
nating appraks of spon
spontaneoun 1 April and
MSC and
of borehofficiently toto be very s
stockpiles
ad out, comr oxidation.
bustion conwere to be
s of spontasis, placingntaneous control works
e community
ropriate levntaneous co
s combustid 30 June 20
EPA were
oles drilled o mine the asuccessful in
involve ke
mpacted wit
ntrol were pcarried out
taneous cog emphasis ombustion. .
y or other e
vels of manombustion
ion (odour,016.
ongoing d
Page 5
from the area safely n that the
eping the
th a dozer
prioritised t.
mbustion. on those Technical
employees
nning and that have
, or dust/
uring the
Quarterly1 April – 3
On 22 Jspontan
6 A
Mining accordin
Muswellbro
y Spontaneous30 June 2016
June 2016 Mneous comb
ASSESSME
of spontanng to the se
ook Coal Comp
s Combustion
MCC receivbustion.
ENT
neous combeverity of th
pany Limited
Report
ved an Offic
bustion areae problem a
cial Caution
as and wateand the abil
from the
er infusion lity to acces
EPA relating
continued ss these are
g to manag
on an ongoas.
Page 6
gement of
oing basis
This page has intentionally been left blank.
FIGURE 1
No.1 Open Cut
Spontaneous Combustion Outbreaks April – June 2016
FIGURE 2
No.2 Open Cut Spontaneous Combustion Outbreaks
April – June 2016