Hunter Valley Operations Environmental Protection

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Hunter Valley Operations

Monthly Meaningful Summary

Environment Protection Licence 640

April 2014

Coal & Allied Operations Pty Ltd

ABN 16 000 023 656

Lemington Road, Ravensworth via Singleton NSW 2330 Australia

PO Box 315 Singleton NSW 2330 Australia

Telephone +61 2 6570 0300 Facsimile +61 2 6570 0399

Contents

1.0

INTRODUCTION ...................................................................................................................................... 1

2.0

AIR QUALITY ............................................................................................................................................ 2

2.1 Depositional Dust Monitoring ......................................................................................................................... 2

2.1.1 Depositional Dust Results ............................................................................................................................... 2

2.2 Total Suspended Particulates (TSP) Monitoring .............................................................................................. 3

2.2.1 TSP Results ...................................................................................................................................................... 3

3.0

SURFACE WATER ................................................................................................................................... 4

3.1 Mine Water Discharge Monitoring .................................................................................................................. 4

4.0

BLAST MONITORING ............................................................................................................................. 5

4.1 Blast Monitoring ............................................................................................................................................. 5

Appendix A: Hunter Valley Operations Monitoring Location Plans ..................................................... 6

Figures

Figure 1 Hunter Valley Operations Environmental Monitoring Locations ...................................... 7

Tables

Table 1 Depositional Dust Monitoring .................................................................................... 2

Table 2 Total Suspended Particulates Monitoring .................................................................. 3

Table 3 Blast Monitoring ........................................................................................................ 5

1.0 INTRODUCTION

This report has been compiled to provide a summary of environmental monitoring results for Hunter Valley Operations (HVO) in accordance with Environment Protection Licence

(EPL) 640. This report includes all monitoring data collected in accordance with EPL 640 for the period 1 April–30 April 2014.

Monitoring in this report includes:

 Air quality monitoring;

 Surface water monitoring including mine water discharge; and

 Blastmonitoring.

1

2.0 AIR QUALITY

To monitor regional air quality, HVO operates and maintains a network of nine depositional dust gauges and four Total Suspended Particulate (TSP) High Volume Air Samplers

(HVAS) on private land surrounding the mining operations. The location of these monitors can be found in Appendix A – HVO Monitoring Locations Plan.

2.1 Depositional Dust Monitoring

2.1.1 Depositional Dust Results

Results of Depositional Dust Monitoring (EPA Monitoring Point 1, Condition M2.2) are shown in Table 1. The outcomes of annual average compliance assessment will be reported in the Annual Review.

Table 1

Pollutant

Particulates –

Deposited Matter

D118

D119

D122

DL14

DL21

DL22

DL30

Knodlers Lane

Warkworth

Depositional Dust Monitoring

Unit of Measure

Grams per square metre per month g/m². month g/m². month g/m². month g/m². month g/m². month g/m². month g/m². month g/m². month g/m². month

No. of samples required by licence

No. of samples collected and analysed

Lowest sample value

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1.4

1.4

1.1

4.4

1.4

1.3

1.0

0.5

2.3

Mean of sample

1.4

1.4

1.1

4.4

1.4

1.3

1.0

0.5

2.3

Highest sample value

Median

1.4

1.4

1.1

4.4

1.4

1.3

1.0

0.5

2.3

1.4

1.4

1.1

4.4

1.4

1.3

1.0

0.5

2.3

Comment

-

-

-

Field notes indicate contamination

-

-

-

-

-

2

2.2 Total Suspended Particulates (TSP) Monitoring

2.2.1 TSP Results

Results of Total Suspended Particulates (TSP) monitoring (EPA Monitoring Point 2, Condition M2.2) are shown in Table 2.

Table 2 Total Suspended Particulates Monitoring

Pollutant

Total Suspended Particulates

Maison Dieu TSP (HV TSP 3)

Knodlers Lane TSP (HV TSP 4)

Warkworth TSP (Lem HV1 TSP)

Kilburnie South TSP

Unit of

Measure

Micrograms per cubic metre

µg/m³

No. of samples required by licence

5

µg/m³ 5

µg/m³

µg/m³

5

5

No. of samples collected and analysed

Lowest sample value

5

5

5

5

21.0

25.0

16.0

18.0

Mean of sample

Highest sample value

Median

44.8

50.0

31.4

38.6

83.0

101.0

47.0

61.0

47.0

47.0

27.0

41.0

3

3.0 SURFACE WATER

3.1 Mine Water Discharge Monitoring

HVO participates in the Hunter River Salinity Trading Scheme (HRSTS), and maintains six monitoring locations associated with this scheme (EPA Monitoring Points 3, 4, 5, 6, 7 and 8, Condition M2.3) as follows:

 EPA Identification Number 3 – Discharge Pipe from Dam 11N

 EPA Identification Number 4 – Discharge end of outlet pipe on Parnell’s Dam

 EPA Identification Number 5 – At the discharge end of the alluvial lands discharge pipeline

 EPA Identification Number 6 – In Farrell’s Creek within 100m, and upstream of the confluence of flow from POINT 3

 EPA Identification Number 7 – In Farrell’s Creek within 100m, and downstream of the confluence of flow from POINT 3

 EPA Identification Number 8 Outlet of discharge pipe from Lake James storage dam

The location of these sampling points can be found in Appendix A –HVO Monitoring Location Plan

During the reporting period no mine water was discharged under the HRSTS.

4

4.0 BLAST MONITORING

4.1 Blast Monitoring

In accordance with the requirements of Condition M8.1, Hunter Valley Operations maintains a network of blast monitors to measure airblast overpressure and ground vibration for all blasts carried out at HVO. The location of these monitors can be found in Appendix A –HVO Monitoring Location Plan

Blast monitoring results are detailed in Table 3.

Compliance Summary:

During the reporting period no blast exceeded the 115dB(L) threshold for airblast overpressure or the 5mm/s threshold for ground vibration. Detailed blast results may be viewed in the Hunter Valley Operations Obtained Data Report for April 2014.

Table 3 Blast Monitoring

Moses Crossing

Jerrys Plains

Maison Dieu

Warkworth

Knodlers Lane

Moses Crossing

Jerrys Plains

Maison Dieu

Warkworth

Knodlers Lane

Pollutant

Airblast

Overpressure

Ground

Vibration

Unit of

Measure dB(L) dB(L) dB(L) dB(L) dB(L) mm/s mm/s mm/s mm/s mm/s

No. of samples required by licence

18

18

18

18

18

18

18

18

18

18

No. of samples collected and analysed

18

18

18

18

18

18

18

18

18

18 lowest sample value

87.7

78.5

82.3

81.6

80.0

0.03

0.02

0.03

0.06

0.03 mean of sample

93.4

91.0

97.5

97.8

98.4

0.13

0.08

0.17

0.50

0.15 highest sample value

102.9

97.9

113.2

114.8

113.8

0.27

0.27

0.51

2.06

0.50

Median

93.4

90.6

97.2

97.9

98.3

0.13

0.13

0.10

0.30

0.09

5

Appendix A: Hunter Valley Operations Monitoring Location Plans

6

Figure 1 Hunter Valley Operations Environmental Monitoring Locations

7

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