2016 - apr-jun spon com report v2

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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..................

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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


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


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


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


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


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


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


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


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


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


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


On 22 Jspontan

6 A

Mining accordin

Muswellbro


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

2016 - apr-jun spon com report v2

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