Hunter Valley Operations
Monthly Meaningful Summary
Environment Protection Licence 640
December 2012
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 AND VIBRATION ................................................................................................ 5
4.1
BLAST MONITORING ..................................................................................................... 5
Figures
Figure 1 Hunter Valley Operations Environmental Monitoring Locations ...................................... 7
Tables
Table 1
Table 2
Table 3
Depositional Dust Monitoring .................................................................................... 2
Total Suspended Particulates Monitoring .................................................................. 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
640. This report includes all monitoring data collected in accordance with EPL 640 for the period 1st December– 31st December 2012.
Monitoring in this report includes:

Air quality monitoring;

Surface water monitoring including mine water discharge; and

Blast and vibration monitoring
1
2.0
AIR QUALITY
To monitor regional air quality, HVO operates and maintains a network of ten depositional dust gauges and seven Total Suspended Particulate (TSP) High Volume Air Samplers
(HVAS) on private land surrounding the mining operations.
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. Where samples have been identified as contaminated, these are assessed
by an Air Quality consultant for inclusion in annual average compliance assessment. The outcomes of annual average compliance assessment will be reported in the Annual
Review.
Table 1
Depositional Dust Monitoring
Unit of
Measure
Grams per
square metre per
month
No. of samples
required by licence
No. of samples
collected and analysed
Lowest
sample value
Mean of
sample
Highest
sample value
Median
D110
g/m². month
1
1
5.5
5.5
5.5
5.5
D112
g/m². month
1
1
7.0
7.0
7.0
7.0
D118
g/m². month
1
1
3.6
3.6
3.6
3.6
D119
g/m². month
1
1
6.0
6.0
6.0
6.0
DL2
g/m². month
1
1
6.6
6.6
6.6
6.6
DL14
g/m². month
1
1
5.2
5.2
5.2
5.2
DL21
g/m². month
1
1
8.0
8.0
8.0
8.0
DL22
g/m². month
1
1
6.9
6.9
6.9
6.9
Knodlers Lane
g/m². month
1
1
2.7
2.7
2.7
2.7
Warkworth
g/m². month
1
1
6.4
6.4
6.4
6.4
Pollutant
Particulates –
Deposited Matter
Comment
Sample noted as
contaminated
Sample noted as
contaminated
Sample noted as
contaminated
Sample noted as
contaminated
Sample noted as
contaminated
Sample noted as
contaminated
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
Unit of
Measure
No. of samples
required by licence
No. of samples collected
and analysed
Lowest sample
value
Mean of
sample
Highest sample
value
Median
Total Suspended Particulates
Micrograms per
cubic metre
Wandewoi TSP (HV TSP 1)
µg/m³
5
5
37
69
116
72
Mason Dieu TSP (HV TSP 3)
µg/m³
5
5
41
74
112
71
Knodlers Lane TSP (HV TSP 4)
µg/m³
5
5
63
84
117
75
Cheshunt East TSP
µg/m³
5
5
40
75
131
65
Warkworth TSP (Lem HV1 TSP)
µg/m³
5
5
18
65
92
76
Kilburnie South TSP
µg/m³
5
5
41
95
154
99
Jerrys Plains HV16 TSP
µg/m³
5
5
31
56
99
58
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
During the reporting period no mine water was discharged under the HRSTS.
4
4.0
BLAST AND VIBRATION
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 –Blast Monitoring Location Plan.
Blast monitoring results are detailed in Table 3.
Compliance Summary:
During the reporting period there were no blasts which exceeded the 115dB threshold for airblast overpressure or 5mm/s for ground vibration. Detailed blast results may be viewed
in Hunter Valley Operations Obtained Data Report for December 2012 .
Table 3
Blast Monitoring
Unit of
Measure
No. of samples
required by licence
No. of samples
collected and analysed
lowest sample
value
mean of
sample
highest sample
value
Median
dB(L)
20
20
88.6
100.2
111.7
100.9
dB(L)
20
20
85.0
99.3
114.2
97.9
dB(L)
20
20
88.3
101.3
114.0
100.4
Warkworth
dB(L)
20
20
84.5
94.5
103.8
94.9
Knodlers Lane
dB(L)
20
20
83.7
98.0
111.9
97.3
Moses Crossing
mm/s
20
20
0.01
0.08
0.21
0.07
mm/s
20
20
0.02
0.08
0.24
0.08
mm/s
20
20
0.02
0.10
0.36
0.08
Warkworth
mm/s
20
20
0.05
0.21
0.72
0.10
Knodlers Lane
mm/s
20
20
0.01
0.06
0.20
0.05
Pollutant
Moses Crossing
Jerrys Plains
Maison Dieu
Jerrys Plains
Maison Dieu
Airblast
Overpressure
Ground
Vibration
5
Appendix A
Hunter Valley Operations
Monitoring Location Plans
6
Figure 1 Hunter Valley Operations Environmental Monitoring Locations
7