wambo coal pty limited - .net framework

WAMBO COAL PTY LIMITED

EXTRACTION PLAN

LONGWALLS 11 TO 16

SOUTH BATES UNDERGROUND MINE

APPENDIX HSUBSIDENCE MONITORING PROGRAM

WAMBO COAL PTY LIMITED SOUTH BATES UNDERGROUND MINE

SUBSIDENCE MONITORING PROGRAM

LONGWALLS 11 - 16

PREPARED BY WAMBO COAL PTY LIMITED

JANUARY 2017 Project No. WAM-09-15 Document No. 00820060

Subsidence Monitoring Program – South Bates Underground Mine Longwalls 11-16

SMP LW11-16 Rev E January 2017 Page i

DOCUMENT CONTROL

Document No. SMP LW11-16

Title Subsidence Monitoring Program for South Bates Underground Mine Longwalls 11 to 16 (Whybrow and Wambo Seams)

General Description Monitoring program for subsidence effects for mining of Longwalls 11 to 16 at the South Bates Underground Mine

Key Support Documents - Revisions

Rev No Date Description By Checked

A October 2015 Survey Updates M. Walker -

B October 2015 Final for Submission M. Walker T. Britten

C January 2016 Incorporation of Addendum

WCPL and Resource Strategies

T. Britten

D November 2016 Update to include Longwalls 14 to 16

WCPL and Resource Strategies

-

E January 2017 Final for Submission WCPL and Resource Strategies

M. Walker/ T. Britten

The nominated Coordinator for this document is Technical Services Manager


SMP LW11-16 Rev E January 2017 Page ii

TABLE OF CONTENTS Section Page

1 INTRODUCTION 1

2 SCOPE 1

3 SUBSIDENCE EFFECTS MONITORING AND REPORTING 3 3.1 SUBSIDENCE MONITORING DETAILS 3 3.2 SURVEY ACCURACY AND FREQUENCY 3 3.3 SUBSIDENCE EFFECTS RECORDING AND REPORTING 3

4 MONITORING OF ENVIRONMENTAL CONSEQUENCES 5

5 ROLES AND RESPONSIBILITIES 12

6 REFERENCES 12

LIST OF TABLES

Table 1 Subsidence Effects Monitoring Program Summary

Table 2 Longwalls 11 to 16 Monitoring Program Summary Table 3 Subsidence Monitoring Program Responsibilities Summary

LIST OF FIGURES

Figure 1 Locations of Surface Water and Groundwater Monitoring Sites

Figure 2 Locations of Relevant Biodiversity Monitoring Sites

LIST OF ATTACHMENTS

Attachment 1 Existing and Proposed Subsidence Monitoring Lines

Attachment 2 Subsidence Impact Register


SMP LW11-16 Rev E January 2017 Page 1

1 INTRODUCTION The Wambo Coal Mine is an open cut and underground coal mining operation located approximately 15 kilometres west of Singleton, near the village of Warkworth, New South Wales (NSW). The Wambo Coal Mine is owned and operated by Wambo Coal Pty Limited (WCPL), a subsidiary of Peabody Energy Australia Pty Limited. The South Bates Underground Mine is a component of the approved Wambo Coal Mine. The South Bates Underground Mine commenced in Longwall 11 in February 2016 and involves extraction of coal by longwall mining methods from the Whybrow Seam and Wambo Seam within Coal Lease (CL) 397 and Mining Lease (ML) 1594. This Subsidence Monitoring Plan forms a part of the Extraction Plan being developed for the approved Longwalls 11 to 16. This Subsidence Monitoring Plan has been updated from the previous revision (Revision C) to incorporate Longwalls 14 to 16 in the Wambo Seam.

2 SCOPE Purpose: This Subsidence Monitoring Program for Longwalls 11 to 16 outlines the monitoring

program for subsidence effects for mining of Longwalls 11 to 16 at the South Bates Underground Mine.

Scope: This Subsidence Monitoring Program covers the Longwalls 11 to 16 Application Area. This Subsidence Monitoring Program is a component of the South Bates Underground Mine Longwalls 11 to 16 Extraction Plan. The Subsidence Monitoring Program has been prepared in accordance with Condition 22C(g) of Schedule 4 of the Development Consent (DA 305-7-2003), which states:

22C. The Applicant must prepare and implement an Extraction Plan for the second workings within each seam to be mined to the satisfaction of the Secretary. Each Extraction Plan must:

...

(g) include the following to the satisfaction of DRE:

...

• a subsidence monitoring program to:

– provide data to assist with the management of the risks associated with subsidence;

– validate the subsidence predictions; and

– analyse the relationship between the subsidence effects and impacts under the plan and any ensuing environmental consequences;

…



This program has been prepared in consideration of the Draft Guidelines for the Preparation of Extraction Plans Required under Conditions of Development Consents, Project Approvals and Mining Lease Conditions for Underground Coal Mining (Version 5) (Department of Planning and Environment and NSW Trade & Investment – Division of Resources and Energy, 2015), which requires: • proposed subsidence monitoring activities (individually specified);

• information or subsidence parameters to be obtained from each monitoring activity;

• proposed locations and/or extents where each monitoring activity will be undertaken, in particular, the proposed layout and/or locations of instrumentation, monitoring points or inspections (including graphical plans);

• proposed timing, frequency and duration of each monitoring activity;

• proposed monitoring methods, technologies, industry standards or Codes of Practice to be applied in undertaking each monitoring activity;

• proposed measures and procedures for quality assurance and competence of personnel undertaking monitoring activities;

• proposed procedures to record monitoring results;

• proposed reporting of monitoring results;

• capacity of the program to detect early warning of deviations from the defined performance measures and associated performance indicators;

• summarise and consolidate the various monitoring programs presented in each of the key component plans; and

• figures showing the monitoring sites for each of the various monitoring programs. Proposed monitoring and reporting of subsidence effects for Longwalls 11 to 16 is described in Section 3. A summary of monitoring of subsidence impacts and environmental consequences is described in Section 4. This Subsidence Monitoring Program has been prepared by WCPL. The appointment of the team of suitably qualified and experienced experts (which includes representatives from WCPL) has been endorsed by the Secretary of the Department of Planning and Environment (DPE).



3 SUBSIDENCE EFFECTS MONITORING AND REPORTING

3.1 SUBSIDENCE MONITORING DETAILS Subsidence monitoring lines are monitored until negligible subsidence is detected. Discontinuance of survey of these lines will be totally at the discretion of the Division of Resources and Energy Principal Subsidence Engineer. The monitoring lines for Longwalls 11 to 16 (Line 7XL, Line CL11B, Line CL13B) have been installed as star pickets driven to refusal with a mark then punched into the top and labelled. The marks have been capped with a protective cover that will be removed during survey. Survey pegs shall generally be a minimum of 10 m and a maximum of 20 m apart. Surveys shall be carried out using either differential levelling to class LC accuracy or Trig heightening methods to an accuracy of class B as specified in the Inter-Governmental Committee on Surveying and Mapping Special Publication 1. LiDAR monitoring lines (DL11, CL11A, CL12A and CL13A) will be analysed by creating a surface profile along the line from 3 dimensional LiDAR data. The potential for survey error due to displacement of the data would be minimised through the use of fixed reference points outside the angle of draw. Details of any subsidence impacts observed would be recorded in the Subsidence Impact Register with visual observations documented in the Subsidence Impact Register Assessment Form (Attachment 2). Visual inspections would be undertaken in accordance with the inspection checklist provided in Attachment 2. The Subsidence Impact Register will be maintained as an electronic spread sheet on-site, with hard copies of assessment forms filed in a folder. The data collected under this monitoring program for Longwalls 11 to 16 will be provided to the Division of Resources and Energy in a timely fashion and a suitable format.

3.2 SURVEY ACCURACY AND FREQUENCY The prescribed accuracy, as defined by the Inter-Governmental Committee on the Survey and Mapping Special Publication 1 (ICSM SP1) and the required frequency of the surveys can be seen in Table 1.

3.3 SUBSIDENCE EFFECTS RECORDING AND REPORTING Subsidence survey data for the South Bates Underground Mine will be stored by WCPL in a centralised database, with results from each survey clearly demarcated. Subsidence survey data is provided to the Division of Resources and Energy Principal Subsidence Engineer promptly following each survey. Subsidence effects are also reported under the reporting framework of the Extraction Plan.



Table 1 Subsidence Effects Monitoring Program Summary

Survey Line Data Type Survey Accuracy Classification Survey Frequency Survey Status

Visual Inspections

As per the Subsidence Impact Register provided in

Attachment 2

N/A • Within 1 month of longwall extraction that may cause surface movement.

• 3 monthly or more frequent in areas of significance such as creeks, roads and buildings.

• As per monitoring program.

Line 7XL x, y, z ICSM Class B or LC • Twice prior to Longwall extraction that will cause surface movement.

• After completion of each Longwall block.

• Installed and surveyed pre LW11.

• Surveyed post LW11.

Line CL11B z (level and strain

distances)

ICSM Class B or LC • Twice prior to Longwall extraction that will cause surface movement.


• Installed and surveyed pre LW11.


Line CL13B z (level and strain

distances)

ICSM Class B or LC • Prior to Longwall extraction that will cause surface movement.


• Installed.

• Base Survey pre LW13 pending.

DL11 Random x, y, z (LiDAR)

<150mm Vert (1 sigma)

• Prior to Longwall extraction that will cause surface movement.


• Surveyed pre LW11-16.


CL11A Random x, y, z (LiDAR)










DL13 Random x, y, z (LiDAR)












4 MONITORING OF ENVIRONMENTAL CONSEQUENCES The various monitoring programs presented in each of the management plans under the Extraction Plan are summarised in Table 2 and the location of environmental monitoring sites included in Wambo’s various environmental monitoring programs are presented in Figures 1 and 2. Figure 1 presents the location of surface water and groundwater monitoring sites. Figure 2 presents the location of biodiversity monitoring sites. As described in Table 2, visual observation of the Wollemi National Park escarpment will be undertaken as part of the BMP monitoring program. Details of any subsidence impacts observed will be recorded in the Subsidence Impact Register with visual observations documented in the Subsidence Impact Register Assessment Form as provided in Attachment 2. Visual inspections will be undertaken in accordance with the inspection checklist provided in Attachment 2. The Subsidence Impact Register will be maintained as an electronic spreadsheet on-site, with hard copies of assessment forms filed in a folder.



Table 2 Longwalls 11 to 16 Monitoring Program Summary

Management Plan Monitoring Component Parameter Frequency

Water Management Plan Bed and bank stability. • Monitoring to distinguish between erosion from mine subsidence instability and erosion from other causes along North Wambo Creek Diversion and Stony Creek.

• In accordance with the SWMP.

Monitoring of surface water quality and flow monitoring sites.

• Monitoring of surface water flow and quality along North Wambo Creek Diversion, Stony Creek and Wollombi Brook in accordance with the SWMP.


Monitoring of groundwater level and quality.

• Monitoring of groundwater level and quality within the vicinity of the Wambo Coal Mine.

• In accordance with the GWMP.

Inflows to underground workings. • Dewatering volumes and underground water levels in accordance with the GWMP.


Diversion and subsidence monitoring program for the North Wambo Creek Diversion.

• As outlined in the SWMP, including: monitoring of Index of Diversion Condition; Landscape Function Analysis (LFA); riparian vegetation; aerial photography; long and cross-section surveys (extracted from LiDAR); and geomorphic condition and efficacy of subsidence management or rehabilitation works.


Visual inspection of the North Wambo Creek Diversion.

• Inspections for surface cracking and/or surface ponding.

• Daily inspections when extraction is occurring directly beneath North Wambo Creek Diversion.

Land Management Plan Fences. • Visual observation to record the initial condition of fences.

• Visual observation to record the condition of fences following extraction of Longwalls 11 to 16.

• Prior to secondary extraction of Longwalls 11 to 16.

• Following completion of secondary extraction of Longwalls 11 to 16.



Table 2 (Continued) Longwalls 11 to 16 Monitoring Program Summary


Land Management Plan (Cont.)

Ground surface. • Visual observation to record the initial condition of the ground surface.

• Visual observations of the ground surface behind the longwall face to identify potential surface cracks.

• Visual observations of low lying areas (i.e. the North Wambo Creek Diversion) to identify potential surface ponding.

• Visual observations of the ground surface to identify stabilisation of erosion and groundcover.


• Monthly inspections during secondary extraction of Longwalls 11 to 16, increased to weekly inspections during extraction within 100 m of the North Wambo Creek Diversion.

• Following a significant rainfall event (i.e. 40 mm within 24 hours).1

• Monthly inspections until stabilisation of erosion and groundcover is >60%.

Cliffs. • Visual observations of cliffs for signs of recent rock fall and/or instability (high definition video/photos recorded via an unmanned aerial vehicle [UAV]).

• Prior to secondary extraction of Longwalls 11 to 16; following completion of secondary extraction of Longwall 11; following completion of secondary extraction of Longwall 12; following completion of secondary extraction of Longwall 13; following completion of secondary extraction of Longwall 14; following completion of secondary extraction of Longwall 15; and following completion of secondary extraction of Longwall 16.





Biodiversity Management Plan General monitoring of flora, fauna and aquatic ecosystems.

• Monitoring in accordance with the BMP. • In accordance with the BMP.

Subsidence impacts to Wollemi National Park escarpment.

• Visual observations of the Wollemi National Park escarpment for signs of recent rock fall and/or instability (high definition video/photos recorded via an UAV).

• Prior to and following completion of each longwall in accordance with the LMP.

Heritage Management Plan Artefact scatters and isolated finds.

• Surface cracks and/or erosion in the vicinity of artefact scatters or isolated finds.

• In accordance with the HMP (monthly during extraction of longwall panels in immediate proximity to a site).

Built Features Management Plan –

WCPL Asset Management Plan

All built features. • Visual observations to record the general condition of WCPL assets including safety and serviceability.

• Monthly inspection during secondary extraction of Longwalls 11 to 16.

Active service lines. • Visual observations to record the general condition of WCPL active service lines including safety and serviceability.

• Daily inspections commencing when secondary extraction is within 100 m of WCPL active service lines and undertaken until the active mining face is 100 m past the line.

Culverts. • Visual observations to record cracking of concrete culverts or grade reversal.

• Prior to secondary extraction within 100 m of culverts and undertaken at 50 m intervals until the active mining face is 100 m past the culverts.

Roads and tracks. • Visual observations to record condition of roads and tracks, including surface cracks, buckling and general safety.

• Prior to secondary extraction within 100 m of any WCPL asset and undertaken at 50 m intervals until the active mining face is 100 m past the WCPL asset.





Built Features Management Plan –

WCPL Asset Management Plan (Cont.)

Mine dewatering and water supply pipelines.

• Monitoring of pipeline integrity at fixed points.

• Monitoring to detect abnormal changes in flow.

• Daily inspections commencing when secondary extraction is within 100 m of WCPL active service lines and undertaken until the active mining face is 100 m past the pipeline.

• Continuous (SCADA) monitoring of pump and pipeline conditions.

Public Safety Management Plan

Fences. • Visual observation to record the initial condition of fences.

• Visual observations to record the condition of fences during extraction of Longwalls 11 to 16.

• Visual observations to record the condition of fences following extraction of Longwalls 11 to 16.


• Monthly inspections during secondary extraction of Longwalls 11 to 16.

• Following completion of secondary extraction of Longwalls 11 to 16.

Warning signs.

• Visual observation to record the initial condition of existing warning signs (e.g. legibility).

• Visual observations to record the condition of warning signs (e.g. legibility) during extraction of Longwalls 11 to 16.

• Prior to secondary extraction of Longwalls Longwalls 11 to 16.

• Monthly inspections during secondary extraction of Longwalls Longwalls 11 to 16.

Rehabilitation Management Plan (MOP)

Remediate subsidence areas. • Visual monitoring to identify any requirement for maintenance measures and/or remedial works.

• Monthly inspections until monitoring confirms stabilisations of erosion and groundcover is >60%.

Installed sediment control structures.

• Inspected of capacity, structural integrity and effectiveness in accordance with the ESCP.

• Monthly and/or following a significant rainfall event (i.e. 20 mm within 24 hours, midnight to midnight).

1 Inspection to occur once access is practically available following the rainfall event. Inspections would not occur for subsequent rainfall events within 7 days of previous inspection.

Scrub

Road

Wallaby

(Jerrys Plains Road)

HighwayGolden

!(

!?

!?

!? !? !?!?

!?

!?

!?

!?

!?

!?

!?

!?

!?

!?

!?!?

!?

!?

!?

!?

!?

!?

!?

!?!?

!?

!?!?

!?

!?

!?

!?

!?

!?

!?

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

WollombiBrook

Wollombi

Brook"

Approved Montrose Water Storage(Not Yet Constructed)

Wam

bo

Creek

WOLLEMI NATIONAL PARK

Creek

Ston

y

"

Previous Alignment of North Wambo Creek

DD Extension

A

C

B

United Collieries

"

South Wambo Dam

WARKWORTH

"

Wambo Access Road

"Wambo Coal Terminal

Hunter ValleyOperations

"

Product CoalConveyor

"

Administration Buildingsand Workshops

WarkworthMine

RWEP Wambo Coal Terminal


CCL 743

CCL 743

"

North Wambo Creek Diversion

LW12

LW13

LW16

LW15

LW14

LW11

"South Bates (Wambo Seam)

Underground Mine

"

South Bates (Whybrow Seam)

Underground Mine

E

Wambo Cr

eek

North

Waterfa

ll

Creek

Redbank Creek

Hunter

River

"

Administration Access Road(Not Constructed)

"

CHPP Portal

FM1

FM11

SW01!(!(

CL 397

ML 1594

ML1594

CL 365

CCL 743

ML 1402

ML 1572 CL 374

SW14

SW20

SW32a

FM2

FM4

FM5

FM6

FM7

FM8

FM9

FM10

FM3

SW02

SW03

SW04

SW05

SW06

SW07

SW08

SW12

SW15

SW27a

SW29

SW30

SW31

SW38

SW39

SW40

SW52

SW54

P106P109

P114P116

P202

P206P301

P315

GW02

GW08

GW09

GW11

GW12

GW13

GW14

GW15

GW16 GW17

GW18

GW19

GW21

GW22

N2

N3

N5

BH2ABH2

BH4C

BH1FBH1G

WAMBORE SOUTH

WAMBO-03

P1

P3

P11

P16

P20

305000

3050

00

310000

3100

00315000

3150

00

6390000 6390000

6395000 6395000

WAM-09-15_Sth Bates EP_Longwalls11-16_SMP_201C

Locations of Surface Water andGroundwater Monitoring Sites

Figure 1

0 2

Kilometres

W A M B O C O A L M I N E±

Source: Department of Lands (July 2009); WCPL (2016); WCPL Orthophoto (July 2016)

LEGENDWCPL Owned LandMining and Coal Lease BoundaryExisting/Approved Surface Development AreaSouth Bates (Whybrow Seam) Underground MineSouth Bates (Wambo Seam) Underground MineOther Approved Underground DevelopmentRemnant Woodland Enhancement Program (RWEP) AreaExtraction Plan Application AreaGroundwater Monitoring SiteSurface Water Quality Monitoring SiteSurface Water Flow Monitoring Site

GDA 1994 MGA Zone 56approx 2 km !

!(

!(

!?

Scrub

Road

Wallaby

(Jerrys Plains Road)

HighwayGolden

!(

!(

#*

#*

#* #*#*

#* #*

#*

#*

#*#*

#*#* #*

#*#*

#*

#* #*

#*

#*

#*

#*#*

#*

#*

!(

!( !(!(

!(

!(

!(!(!(

!(

!(!(

!( !(

!(

!(

!(!(

!(

!(

!(

!( !(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(!(!(

!(!(

!(!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(

!(

#*

#*

#*

#*

#*

#*

#*

#*

#*

CHPP

V2-A1V1-A2

V6-B1V6-B3

V6-B2V1-B2

V1-A1

V3-B1

V2-B1V1-B3 V2-B2

V5-B2 V5-B1

V5-B3

V1-B1

V6-B2c

V14-B1

V14-B2

V9-A1

V14-A1

V9-B2V13-B1

V6-B1c

V6-A1c

V11-B2

V10-B1V9-B1

V10-A2

V10-A1V11-B1

V6-B4

V5-B4V10-B3

V6-A3

WollombiBrook

Wollombi

Brook"

Approved Montrose Water Storage

(Not Yet Constructed)W

ambo

Creek

WOLLEMI NATIONAL PARK

Creek

Ston

y

"

Previous Alignment of North Wambo Creek

DD Extension

A

C

B

United Collieries

"

South Wambo Dam

WARKWORTH

"

Wambo Access Road

"Wambo Coal Terminal


"

Product CoalConveyor

"

Administration Buildingsand Workshops

WarkworthMine

RWEP Wambo Coal Terminal


CCL 743

CCL 743

"

North Wambo Creek Diversion

"South Bates (Wambo Seam)

Underground Mine

"

South Bates (Whybrow Seam)

Underground Mine

E

Wambo Cr

eek

North

Waterfa

ll

Creek

Redbank Creek

Hunter

River

"

Administration Access Road(Not Constructed)

"

CHPP Portal

CL 397

ML 1594

ML1594

CL 365

CCL 743

ML 1402

ML 1572 CL 374

305000

3050

00

310000

3100

00315000

3150

00

6390000 6390000

6395000 6395000

WAM-09-15_Sth Bates EP_Longwalls11-16_SMP_202E

Locations of RelevantBiodiversity Monitoring Sites

Figure 2

0 2

Kilometres

W A M B O C O A L M I N E±

Source: Department of Lands (July 2009); WCPL (2016); WCPL Orthophoto (July 2016)

LEGENDWCPL Owned LandMining and Coal Lease BoundaryExisting/Approved Surface Development AreaSouth Bates (Whybrow Seam) Underground MineSouth Bates (Wambo Seam) Underground MineOther Approved Underground DevelopmentRemnant Woodland Enhancement Program (RWEP) AreaExtraction Plan Application Area

GDA 1994 MGA Zone 56

!( Flora Monitoring Plot#* Bird Monitoring Site!( Riparian Monitoring Cross-section#* LFA Monitoring Location - Riparian



5 ROLES AND RESPONSIBILITIES Key responsibilities of WCPL personnel in relation to this Subsidence Monitoring Program are summarised in Table 3. Responsibilities may be delegated as required.

Table 3 Subsidence Monitoring Program Responsibilities Summary

Responsibility Task

General Manager • Ensure resources are available to WCPL personnel to facilitate the completion of responsibilities under this Subsidence Monitoring Program.

Mining Engineering Manager (Underground Mine Manager)

• Ensure this Subsidence Monitoring Program is implemented.

Technical Services Manager

• Ensure monitoring and reporting required in accordance with this Subsidence Monitoring Program is carried out within specified timeframes, are adequately checked and processed and are prepared to the required standard.

Environment and Community Manager

• Undertake environmental monitoring required in accordance with the Extraction Plan and ensure the Subsidence Impact Register is kept up to date and hard copies of the assessment forms are filed / stored correctly.

Underground Mining Engineer

• Become familiarised with environmental aspects which require monitoring in accordance with the Extraction Plan.

Mine Surveyor • Undertake all monitoring in accordance with this Subsidence Monitoring Program to the required standard within the specified timeframes and ensure data are adequately checked, processed and recorded.

6 REFERENCES

Department of Planning and Environment and NSW Trade & Investment – Division of Resources and Energy (2015) Guidelines for the Preparation of Extraction Plans Required under Conditions of Development Consents, Project Approvals and Mining Lease Conditions for Underground Coal Mining. Version 5. Draft.

Wambo Coal Pty Limited (2003) Wambo Development Project Environmental Impact Statement.


SMP LW11-16 Rev E January 2017

ATTACHMENT 1

EXISTING AND PROPOSED SUBSIDENCE MONITORING LINES

L

W

1

S

U

M

P

D

R

I

V

A

G

E

4

1

7

P

A

N

E

L

L

W

1

S

U

M

P

D

R

I

V

A

G

E

4

1

3

P

A

N

E

L

4

1

5

P

A

N

E

L

4

1

6

P

A

N

E

L

4

1

8

P

A

N

E

L

4

1

9

P

A

N

E

L

4

1

2

P

A

N

E

L

L

O

N

G

W

A

L

L

1

L

O

N

G

W

A

L

L

2

L

O

N

G

W

A

L

L

3

4

1

5

P

A

N

E

L

4

1

6

P

A

N

E

L

2

7

m

I

S

-

4

1

5

-

6

INSEAM BORES

100.0

56789

10

11

12

14

15

16

17

18

19

20

21

22

24

25

26

27

28

29

30

31

32

33

34

35

36

40

37

B HDG

A HDG

A HDG

B HDG

13

38

100.0

100.0100.0

100.0

100.0

100.0

90.0

90.0

110.0

110.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

102.2

102.2

87.892.0

92.0

122.0114.086.0

100.0

114.0

100.0

100.0

100.0

100.0

100.0

86.0

100.0

114.0

100.0

100.0

100.0

95.0

95.0

91.0

105.0

114.0

100.0

100.0

100.0

86.0100.0

100.0

100.0

100.0100.0

38.5

38.5

38.5

38.5

38.5

38.5

38.5

38.5

38.5

38.5

38.5

38.5

38.5

38.5

38.5

41.0

38.5

38.5

37.4

37.4

37.4

37.4

37.4

37.4

37.4

37.4

37.4

35.1

35.1

35.1

37.4

37.4

37.4

37.4

37.4

35.1

37.4

37.4

37.4

35.1

37.4

37.4

37.4

37.4

37.4

37.4

37.4

35.1

35.1

100.0

100.0

100.0

100.0

100.0

100.0

100.0

110.0

110.0

90.0

90.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

87.2

100.0

100.0

100.0

100.0

100.0

112.8

100.0

100.0

100.0

100.0

100.0

100.0

100.0

90.0

90.0

97.2

110.0

112.8

100.0

100.0

100.0

100.0

100.0

87.2

100.0

112.8

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

87.2

100.0100.0100.0100.0

A HDG

B HDG

Maingate 2

A HDG

B HDG

Maingate 2

A HDG

B HDG

Maingate 2

A HDG

B HDG

Maingate 2

A HDG

B HDG

Maingate 2

A HDG

B HDG

Maingate 2

A HDG

B HDG

Maingate 2

A HDG

B HDG

Maingate 2

A HDG

B HDG

Maingate 2

A HDG

B HDG

Maingate 2

A HDG

B HDG

Maingate 2

Maingate 1

A HDG

B HDG

Maingate 1

A HDG

B HDG

Maingate 1

A HDG

B HDG

Maingate 1

A HDG

B HDG

Maingate 1

A HDG

B HDG

Maingate 1

B HDG

Maingate 1

A HDG

B HDG

Maingate 1

A HDG

B HDG

Maingate 1

A HDG

B HDG

Maingate 1

A HDG

B HDG

Maingate 1

A HDG

B HDG

6789

10

11

12

13

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

5

14

1

2

4

LONGWALL 1

LONGWALL 2

LONGWALL 3

100.0

B HDG

49.9

50.938.1

64.938.1

100.02

70.28

70.27

85.15

85.13

39.77

41.14

A HDG

100.0

100.0

103.4

30.4

100.0

96.6

30.4

100.26

100.0

30.4

100.0

100.0

30.4

100.0

100.0

30.4

100.0

100.0

30.4

100.0

100.0

30.4

100.0

100.0

28.7

100.0

100.0

28.7

100.0

110.5

28.7

100.0

100.0

3

0

.

5

101.0100.0

110.5

100.0

100.0

100.0

100.0

100.446

90.0

100.0

110.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0100.5100.2100.2100.2100.2100.2100.2100.2100.2

100.0

100.2

100.0

100.2

56789

10

11

12

13

14

15

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

Tailgate 1Tailgate 1Tailgate 1Tailgate 1Tailgate 1Tailgate 1Tailgate 1Tailgate 1Tailgate 1Tailgate 1Tailgate 1

B HDG

A HDG

B HDG

A HDG

B HDG

A HDG

B HDG

A HDG

B HDG

A HDG

B HDG

A HDG

B HDG

A HDG

B HDG

A HDG

B HDG

A HDG

B HDG

A HDG

B HDG

A HDG

37

39

40

B HDG

A HDG

4

41

3

0

.

5

3

0

.

5

3

0

.

5

3

0

.

5

3

0

.

5

3

0

.

5

3

0

.

5

3

0

.

5

3

0

.

5

3

0

.

5

3

1

.

3

15

a

31.5

42.0

108.0

86.0

100.0100.0

16

28.7

101.0

28.7

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

3

2

.

0

3

2

.

7

3

3

.

4

3

4

.

1

3

4

.

8

3

5

.

5

3

6

.2

3

6

.

9

3

7

.

6

3

8

.

3

18.32

36.9

87.8

38.5

41.0

41.0

41.0

41.0

38.5

41.0

41.0

41.0

38.5

41.0

41.0

38.5

38.5

41.0

41.0

41.0

38

3

8

.

6

37.3 62.8

36.557.1

43.1

1

9

.

4

9

A HDG

23

38.5

39

41.0

114.0

114.0

100.0

86.0

20.1

79.9

42.0

27.411.3

42.0

4

4

.

7

17.0

37.4

100.0

46.2

100.0

35.1

37

35.1

38

100.0 100.0

37.4

72.2

85.0

35.1

42

39

1

37.8

37.8

38.7

45.44

45.45

209.96

35.1

40

41

47.935.1

35.1 35.1

35.1

210.0

10.0

10.0

(1

)(2

)(3

)(4

)(5

)(6

)(7

)(8

)

INSEAM BORES (TG1-15AB)

INSEAM BORES (TG1-15AB)

R

i

d

g

e

U

n

d

e

r

g

r

o

u

n

d

W

o

r

k

i

n

g

s

M

i

n

e

d

E

x

t

e

n

t

-

W

h

y

b

r

o

w

S

e

a

m

(

b

a

c

k

f

i

l

l

e

d

w

i

t

h

w

a

s

h

e

r

y

t

a

i

l

i

n

g

s

)

R

e

f

e

r

t

o

R

e

c

o

r

d

T

r

a

c

i

n

g

N

o

.

7

4

6

A

E

x

.

B

a

t

e

s

O

p

e

n

C

u

t

M

i

n

e

d

E

x

t

e

n

t

-

W

h

y

b

r

o

w

S

e

a

m

(

B

a

c

k

f

i

l

l

e

d

,

P

a

r

t

i

a

l

R

e

h

a

b

)

A

d

d

e

d

t

o

R

e

c

o

r

d

T

r

a

c

i

n

g

N

o

.

7

2

8

A

(

r

e

f

e

r

t

o

O

r

i

g

i

n

a

l

R

T

7

6

5

)

C

u

r

r

e

n

t

W

a

m

b

o

O

p

e

n

C

u

t

M

i

n

e

d

E

x

t

e

n

t

-

W

h

y

n

o

t

S

e

a

m

(

B

a

t

e

s

P

i

t

)

(

b

a

c

k

f

i

l

l

e

d

w

i

t

h

s

p

o

i

l

)

R

e

f

e

r

t

o

R

e

c

o

r

d

T

r

a

c

i

n

g

N

o

.

7

2

8

A

C

u

r

r

e

n

t

W

a

m

b

o

O

p

e

n

C

u

t

M

i

n

e

d

E

x

t

e

n

t

(

B

a

t

e

s

S

o

u

t

h

P

i

t

)

W

h

y

n

o

t

S

e

a

m

F

l

o

o

r

(

p

a

r

t

i

a

l

l

y

b

a

c

k

f

i

l

l

e

d

w

i

t

h

s

p

o

i

l

)

R

e

f

e

r

t

o

R

e

c

o

r

d

T

r

a

c

i

n

g

N

o

.

7

2

8

A

1

N

O

R

T

H

2

N

O

R

T

H

Current W

am

bo O

pen C

ut

Mined E

xtent (B

ates S

outh P

it)

Whybrow

S

eam

F

loor

Refer to R

ecord T

racing N

o. 728A

S

W NE

T

XS

h

e

d

F

A

N

S

T

R

A

C

K

E

D

V

E

H

I

C

L

E

S

O

N

L

Y

!

S

T

E

E

P

G

R

A

D

E

S

F

u

e

l

B

a

y

S

o

u

th

B

a

te

s

U

G

In

-

P

it

D

R

A

IN

GA

TE

G

R

A

D

E

1

I

N

5

.

5

D

R

A

I

N

G

A

T

E

D

R

A

IN

P

E

R

I

M

E

T

E

R

T

R

A

I

L

R

O

A

D

T

R

A

I

L

P

E

R

I

M

E

T

E

R

RO

AD

LHD & QDS Go Line

S

B

W

R

O

M

S

T

O

C

K

P

I

L

E

SB

U S

UM

P

IG

LO

O

IG

LO

O

B

A

S

E

O

F

M

IN

O

R

C

L

IF

F

S

B

A

S

E

O

F

M

A

J

O

R

C

L

I

F

F

S

B

A

S

E

O

F M

IN

O

R

C

LIF

FS

B

A

S

E

O

F

M

I

N

O

R

C

L

I

F

F

S

D

U

M

P

T

O

E

E

x

t

e

r

n

a

l

L

e

a

s

e

B

o

u

n

d

a

r

y

LINE CL1A

L

IN

E

S

C

1

LIN

E 2

XL

C

L

1

A

7

5

C

L

1

A

7

4

C

L

1

A

7

3

C

L

1

A

7

2

1357

1362

1363

1364

1365

1366

1368

1370

1371

1372

1373

1375

1376

1377

1379

1380

1381

1382

1383

1384

1385

1386

1388

1389

1390

1391

1392

1393

1395

1396

1397

1398

1399

1400

1408

1409

1410

1411

1413

1414

1416

1417

1418

1419

1421

1422

1423

1424

1425

1426

1427

1428

1429

1430

1431

1432

1433

1434

1435

1436

1437

1438

1439

1440

1441

1442

1443

1444

1445

1446

1447

1448

1449

C

L

1

A

7

1

C

L

1

A

7

0

C

L

1

A

6

9

C

L

1

A

6

8

C

L

1

A

6

7

C

L

1

A

6

6

C

L

1

A

6

5

C

L

1

A

6

4

C

L

1

A

6

3

C

L

1

A

6

2

C

L

1

A

6

1

C

L

1

A

6

0

C

L

1

A

5

8

C

L

1

A

5

7

C

L

1

A

5

6

C

L

1

A

5

5

C

L

1

A

5

4

C

L

1

A

5

3

C

L

1

A

5

2

C

L

1

A

5

1

C

L

1

A

5

0

C

L

1

A

4

9

C

L

1

A

4

8

C

L

1

A

4

7

C

L

1

A

4

6

C

L

1

A

4

5

C

L

1

A

4

4

C

L

1

A

4

3

C

L

1

A

4

2

C

L

1

A

4

1

C

L

1

A

4

0

C

L

1

A

3

9

C

L

1

A

3

8

C

L

1

A

3

7

C

L

1

A

3

6

C

L

1

A

3

5

5

D

C

L

1

A

3

3

C

L

1

A

3

2

C

L

1

A

3

1

C

L

1

A

3

0

C

L

1

A

2

9

C

L

1

A

2

8

C

L

1

A

2

7

C

L

1

A

2

6

C

L

1

A

2

5

C

L

1

A

2

4

C

L

1

A

2

3

C

L

1

A

2

2

C

L

1

A

2

1

C

L

1

A

2

0

C

L

1

A

1

9

C

L

1

A

1

8

C

L

1

A

1

7

C

L

1

A

1

6

C

L

1

A

1

5

C

L

1

A

1

4

C

L

1

A

1

3

C

L

1

A

1

2

C

L

1

A

1

1

C

L

1

A

1

0

C

L

1

A

0

9

C

L

1

A

0

8

C

L

1

A

0

7

C

L

1

A

0

6

C

L

1

A

0

5

C

L

1

A

0

4

C

L

1

A

0

3

C

L

1

A

0

2

C

L

1

A

0

1

C

L

1

A

0

0

C

L

1

A

-

0

1

C

L

1

A

-

0

2

C

L

1

A

-

0

3

C

L

1

A

-

0

4

C

L

1

A

-

0

5

C

L

1

A

-

0

6

C

L

1

A

-

0

7

C

L

1

A

-

0

8

C

L

1

A

-

0

9

C

L

1

A

-

1

0

C

L

1

A

-

1

1

C

L

1

A

-

1

2

C

L

1

A

-

1

3

C

L

1

A

5

9

L

I

N

E

'R

'

LIN

E 'Z

'

L

I

N

E

'S

'

L

W

1

S

U

M

P

D

R

I

V

A

G

E

4

1

7

P

A

N

E

L

L

W

1

S

U

M

P

D

R

I

V

A

G

E

4

1

3

P

A

N

E

L

4

1

5

P

A

N

E

L

4

1

6

P

A

N

E

L

4

1

8

P

A

N

E

L

4

1

9

P

A

N

E

L

4

1

2

P

A

N

E

L

L

O

N

G

W

A

L

L

1

L

O

N

G

W

A

L

L

2

L

O

N

G

W

A

L

L

3

4

1

5

P

A

N

E

L

4

1

6

P

A

N

E

L

2

7

m

I

S

-

4

1

5

-

6

H

ig

h

w

a

ll

T

o

e

H

ig

h

w

a

ll C

r

e

s

t

A

llu

v

ia

l H

ig

h

w

a

ll C

r

e

s

t

Allu

via

l H

ig

hw

all C

re

st

H

i

g

h

w

a

l

l

T

o

e

H

i

g

h

w

a

l

l

C

r

e

s

t

A

l

l

u

v

i

a

l

H

i

g

h

w

a

l

l

C

r

e

s

t

H

ig

h

w

a

ll T

o

e

H

ig

h

w

a

ll C

re

s

t

H

ig

h

w

a

ll T

o

e

H

ig

h

w

a

ll C

re

st

A

llu

v

ia

l H

ig

h

w

a

ll C

r

e

s

t

Alluvial H

ighw

all C

rest

Allu

via

l H

ig

hw

all C

re

st

Allu

via

l H

ig

hw

all C

re

st

A

l

l

u

v

i

a

l

T

o

e

Hig

hw

all T

oe

W

hybrow

S

eam

Hig

hw

all C

re

st

Pro

po

se

d H

ig

hw

all T

oe

DD

16

44

.7

(S

TA

RT

)

DD

S

t

e

p

o

v

e

r

0

.

7

m

t

o

c

r

e

a

t

e

w

a

lk

s

id

e

DD

R

com

menced 17/02/2016

D

C

DD

17

75

.2

(S

TA

RT

)

D

D

DD

com

pleted 2/07/2016

DD

R

R

R

R

com

menced 4/08/2016

16

16

113.8

113.8

113.8

113.8

1

1

15

36.8

17

41.3

18

41.3

19

41.3

116.5

116.5

116.5

116.5

LONGWALL 16

100

200

300

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

LONGWALL 15

100

200

300

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

LONGWALL 14

100

200

300

400

500

600

700

800

900

1000

1100

1200

1300

1400

37.7

37.7

C

R

Top of Seam

(Surveyed)

R

R

R

DD

Travel Road

37.7

31.5

37.7

31.5

169.4

75.8

75.8

169.4

1

31.5

1500

Open

T

XS

h

e

d

F

A

N

S

T

R

A

C

K

E

D

V

E

H

I

C

L

E

S

O

N

L

Y

!

S

T

E

E

P

G

R

A

D

E

S

F

u

e

l

B

a

y

S

o

u

th

B

a

te

s

U

G

In

-

P

it

D

R

A

IN

GA

TE

G

R

A

D

E

1

I

N

5

.

5

D

R

A

I

N

G

A

T

E

D

R

A

IN

P

E

R

I

M

E

T

E

R

T

R

A

I

L

R

O

A

D

T

R

A

I

L

P

E

R

I

M

E

T

E

R

RO

AD

LHD & QDS Go Line

S

B

W

R

O

M

S

T

O

C

K

P

I

L

E

SB

U S

UM

P

IG

LO

O

IG

LO

O

B

A

S

E

O

F

M

IN

O

R

C

L

IF

F

S

B

A

S

E

O

F

M

A

J

O

R

C

L

I

F

F

S

B

A

S

E

O

F M

IN

O

R

C

LIF

FS

B

A

S

E

O

F

M

I

N

O

R

C

L

I

F

F

S

D

U

M

P

T

O

E

P

P

P

P

P

P

P

P

P

P

1000V x2, 4

15V x1

1

0

0

0

V

x

2

, 4

1

5

V

x

1

M

IN

D

EPTH

0

.6

m R

ED

U

N

D

AN

T

R

E

D

U

N

D

A

N

T

P

6

6

k

V

6

6

k

V

11K

V

1

1

K

V

11KV on ground

11K

V

(

+

P

h

o

n

e

&

O

p

t

i

c

C

a

b

l

e

)

(+

P

h

o

n

e

&

O

ptic C

able)

1

1

K

V

11K

V

11K

V

(

+

P

h

o

n

e

&

O

p

t

i

c

C

a

b

l

e

)

T

a

n

k

s

R

L

7

8

m

T

a

n

k

s

R

L

9

5

m

T

a

n

k

s

R

L

1

5

0

m

1

1

K

V

11KV

415V

240V

W

3

5

1

1

k

V

1

1

k

V

11KV

11K

V

4

1

5

v

RE

DU

ND

AN

T C

AB

LE

415v

415v

W

A

T

E

R

W

A

T

E

R

4

1

5

v

REDUNDANT CABLE

C

A

B

LE

?

WATER

A

IR

W

A

T

E

R

W

AT

ER

A

IR

AIR

AIR

4

1

5

v

11KV

DATA

FLOXAL

EMULSION

11KV

11K

V

11K

V

11KV

11K

V

1

1

K

V

Buried

11kv

Buried

11kv

C

a

b

le

T

ra

y

WATER

P

T

R

T

R

T

R

T

R

T

R

c

a

b

l

e

re

d

u

n

d

a

n

t

p

r

o

p

o

s

e

d

e

a

r

t

h

b

u

r

i

e

d

p

r

o

p

o

s

e

d

c

a

b

l

e

t

r

a

y

s

p

o

w

e

r

415v

W

ATER

AIR

415v

AIR

A

I

R

W

A

T

E

R

A

I

R

W

A

T

E

R

AIR

WA

TE

R

Cable Tray

Cable T

ray

2

4

0

v

A

IR

W

3

4

W

3

3

W

3

6

W

3

7

W

3

8

W

3

9

W

4

0

W

4

0

A

W

4

0

B

+F

ibre

+

P

h

o

n

e

+

P

h

o

n

e

+

F

ib

e

r

?

?

C

A

B

LE

?

7X

L

7X

L

7X

L

B

A

S

E

O

F

M

IN

O

R

C

L

IF

F

S

B

A

S

E

O

F

M

A

J

O

R

C

L

I

F

F

S

B

A

S

E

O

F

M

I

N

O

R

C

L

I

F

F

S

Applic

ation A

rea

Applic

atio

n A

rea

Application Area

Full Extraction BoundaryCurrent Open Cut Extraction

Approval Area

Underground Workings

Existing Whybrow Seam


(Arrowfield Seam Seam)

United Collieries

Revision No.

Drawing No.

CheckedDrawnScale:Date Sheet SizeApproved

WAMBO COAL PTY LIMITED

Prepared by NWU Survey Ph: 02 65 702318

ABN 13 000 668 057

Jerry's Plains Rd, WarkworthVia Singleton, NSW, 2330

Phone: 02 65 702200Fax: 02 65 702290

South Bates Underground Mine

Extraction Plan - Longwalls 14 to 16

Plan 7 - Proposed and Existing Subsidence Monitoring

A 30/11/2016 MJW TB

(Whybrow/Wambo Seam)

Wambo Opencut Void

3

0

4

0

5m Contours (AHD)

For Submission

Monitoring Marks

Existing Subsidence

Surface

1XL95 T95

Monitoring Marks used

Old United UG Subsidence

9

0

Wambo Seam Workings

Existing South Bates Underground

Monitoring LiDAR

Subsidence

Profile Locations

(Wambo UG) for NWU Multi Seam

Contours (5m)


North Wambo

Wambo Seam Workings

Proposed South Bates UndergroundCurrent Underground Extraction

Approval Area Whybrow Seam

1371

Monitoring Marks used

Old Wollemi UG Subsidence

for NWU Multi Seam

Water course

/ Drain


SMP LW11-16 Rev E January 2017

ATTACHMENT 2

SUBSIDENCE IMPACT REGISTER


SMP LW11-16 Rev E January 2017 Page A2-1

Table A2-1 Example Subsidence Impact Register (Electronic Version Maintained On-Site)

Impact Register Number1

Impact Description

Does Impact Exceed the Performance

Measure/Indicators?

(Yes/No/ Not Applicable)

Management Measures Implemented

Were Management

Measures Effective?

(Yes/No)

Notes:

1: Fill out all details in the Assessment Form and record the register number here.



SUBSIDENCE IMPACT REGISTER ASSESSMENT FORM

Date and Time

Observer (Name and position)

Register Number (i.e. Number 1, 2, etc.)

Longwall Number

Longwall Chainage

Area Inspected Examples: location of crack, include GPS co-ordinates and a sketch

INSPECTION ITEM CHECKED COMMENTS (Examples: nature and extent of impact, any relevant

information, attach photographs)

Surface Cracking

Surface Humps (compression)

Surface Ponding

Access Tracks/Serviceability of built features

Warning Signage

Powerline – poles, insulators, conductors, conductor clearance

Other

Actions Required

Management or Contingency Measures Implemented

Effectiveness of Management or Contingency Measures

WCPL Key Personnel Notified (include date of email)

Technical Services Manager __/__/____

Environment and Community Manager __/__/____



SUBSIDENCE INSPECTION CHECKLIST WHERE TO INSPECT • 500 metres behind and 100 metres in front of the current longwall face position. EXTENT OF INSPECTION • Include the area of active subsidence based on the 26.5 degree angle of draw. WHAT TO LOOK FOR • Surface Cracking: inspect edges of extraction void and travelling abutments.

• Surface Humps: inspect near centre of extracted panels and travelling abutment.

• Surface Ponding: inspect low lying areas for evidence of increased/new ponding.

• Access Tracks: inspect for step change in land surface and changes in access for serviceability.

• Warning Signage: inspect condition and legibility of relevant warning signage.

• Powerlines: inspect for changes of conductor clearance and power pole condition.

• Check the serviceability of built features (e.g. fences, buildings, dams and access tracks).

• Note any flooding hazards for access tracks.

• Carry out any inspections required in accordance with the Built Features Management Plan for Longwalls 11 to 16.

ACTIONS IF AN IMPACT IS IDENTIFIED 1. Employ additional subsidence warning signs if necessary.

2. Notify Key Personnel (including asset owner if relevant [e.g. if asset is not a WCPL-owned asset]).

3. Assess impact against requirements of the relevant TARP and implement actions as required.

4. Record implemented actions in the Subsidence Impact Register Assessment Form.

5. Notify the principal subsidence engineer.

6. Notify other stakeholders as required (e.g. DPE, DRE etc.).