Hunter Valley Operations Monthly Obtained Data Summary Environment Protection Licence 640 February 2015 Publish Date: 16 March 2015 Licensee: Coal & Allied Operations Pty Ltd PO Box 315 Singleton NSW 2330 Australia Premises: Hunter Valley Operations Lemington Road, Singleton NSW 2330 Australia Contents 1.0 INTRODUCTION 1 2.0 AIR QUALITY 2 2.1 Depositional Dust Monitoring 2 2.1.1 2 Depositional Dust Results 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 5 BLAST MONITORING 4.1 Blast Monitoring 5 Appendix A: Hunter Valley Operations Monitoring Location Plans 8 Figures Figure 1 Hunter Valley Operations Environmental Monitoring Locations ..................................... 9 Tables Table 1 Table 2 Table 3 Table 4 Depositional Dust Monitoring ................................................................................... 2 Total Suspended Particulates Monitoring ................................................................. 3 Blast Monitoring – Airblast Overpressure ................................................................ 5 Blast Monitoring – Vibration .................................................................................... 6 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 February– 28 February 2015. The Environmental Protection Licence 640 can be viewed in full at the following address: http://www.epa.nsw.gov.au/prpoeoapp/ViewPOEOLicence.aspx?DOCID=32985&SYSUID=1&LICID=640 Monitoring in this report includes: Air quality monitoring; Surface water monitoring including mine water discharge; and Blast monitoring. 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. The last sample date for Depositional Dust was 20 February 2015; the data was obtained on 12 March 2015. Table 1 Depositional Dust Monitoring Monitoring frequency required by licence No. of samples collected and analysed Value Comment 1 1 2.3 - g/m². month 1 1 3.0 - D122 g/m². month 1 1 1.1 - DL14 g/m². month 1 1 1.9 - DL21 g/m². month 1 1 0.9 - DL22 g/m². month 1 1 0.8 - DL30 g/m². month 1 1 1.4 - Knodlers Lane g/m². month 1 1 0.8 - Warkworth g/m². month 1 1 6.0 Field notes indicates contamination Pollutant Unit of Measure Particulates – Deposited Matter Grams per square metre per month (min. of 4 weeks) D118 g/m². month D119 Once a month 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. The last sample date was 28 February 2015; the data was obtained on 12 March 2015. Table 2 Total Suspended Particulates Monitoring Pollutant Unit of Measure Monitoring frequency required by licence Total Suspended Particulates Micrograms per cubic metre Every six days Maison Dieu TSP (HV TSP 3) µg/m³ Maison Dieu TSP (HV TSP 3) No. of samples required by licence No. of samples collected and analysed Value Comments 4/02/2015 36 - µg/m³ 10/02/2015 29 - Maison Dieu TSP (HV TSP 3) µg/m³ 16/02/2015 34 - Maison Dieu TSP (HV TSP 3) µg/m³ 22/02/2015 13 - Maison Dieu TSP (HV TSP 3) µg/m³ 28/02/2015 38 - Knodlers Lane TSP (HV TSP 4) µg/m³ 4/02/2015 46 - Knodlers Lane TSP (HV TSP 4) µg/m³ 10/02/2015 27 - Knodlers Lane TSP (HV TSP 4) µg/m³ 16/02/2015 - * Knodlers Lane TSP (HV TSP 4) µg/m³ 22/02/2015 9 - Knodlers Lane TSP (HV TSP 4) µg/m³ 28/02/2015 29 - Warkworth TSP (Lem HV1 TSP) µg/m³ 4/02/2015 42 - Warkworth TSP (Lem HV1 TSP) µg/m³ 10/02/2015 55 - 5 5 5 5 5 5 Warkworth TSP (Lem HV1 TSP) µg/m³ 16/02/2015 60 - Warkworth TSP (Lem HV1 TSP) µg/m³ 22/02/2015 29 - 3 Warkworth TSP (Lem HV1 TSP) µg/m³ 28/02/2015 63 - Kilburnie South TSP µg/m³ 4/02/2015 65 - Kilburnie South TSP µg/m³ 10/02/2015 72 - Kilburnie South TSP µg/m³ 16/02/2015 135 - Kilburnie South TSP µg/m³ 22/02/2015 43 - Kilburnie South TSP µg/m³ 28/02/2015 115 - Long Point TSP µg/m³ 4/02/2015 38 - Long Point TSP µg/m³ 10/02/2015 29 - Long Point TSP µg/m³ 16/02/2015 47 - Long Point TSP µg/m³ 22/02/2015 15 - Long Point TSP µg/m³ 28/02/2015 56 - 5 5 5 5 *A full run not able to be completed due to a power failure at Knodlers Lane 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 4 The location of these sampling points can be viewed in Appendix A: HVO Monitoring Location Plan During the reporting period no mine water was discharged under the HRSTS. 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 –Blast Monitoring Location Plan. The last date sampled was the 27 February 2015; the data was obtained on 12 March 2015. During the reporting period one blast exceeded the 115dB(L) threshold for airblast overpressure. On the 19th of February at 11:07am a blast initiated in West Pit recorded an elevated airblast overpressure measurement of 116.4dB(L). No blasts during the reporting period exceeded the 5mm/s threshold for ground vibration. Blast monitoring results are detailed in Tables 3 (Airblast Overpressure) and Table 4 (Ground Vibration). Table 3 Blast Monitoring – Airblast Overpressure EPL Limits Blast ID Date and Time Unit of Measure Monitoring Point Only 5% of blasts can exceed 115db(L) during the reporting period Blasts can not exceed 120dB(L) Moses Crossing Jerrys Plains Maison Dieu Warkworth Knodlers Lane P115R0103A 3/02/2015 11:13 dB(L) 115 120 102.0 95.8 93.8 94.4 94.4 P203WK201A 4/02/2015 10:31 dB(L) 115 120 94.2 91.1 101.7 107.0 105.9 WN41LEB01A 5/02/2015 11:06 dB(L) 115 120 109.1 95.7 100.8 88.7 85.3 P117M0808D 6/02/2015 9:45 dB(L) 115 120 90.2 101.3 99.4 95.1 92.0 WG01UAP03A/W W25LED02A 6/02/2015 12:37 dB(L) 115 120 94.1 105.8 104.1 84.9 98.1 P120FCL01A 9/02/2015 12:31 dB(L) 115 120 110.2 108.9 108.0 86.3 99.3 P20370P03A/P20 3WK203A 11/02/2015 12:04 dB(L) 115 120 107.1 107.0 86.3 99.7 101.4 5 WS36LLD02A 12/02/2015 11:16 dB(L) 115 120 91.9 94.5 83.7 93.9 93.4 P117P0605A 13/02/2015 10:04 dB(L) 115 120 97.3 104.1 100.1 92.9 93.4 WS43LPP01A/WS 43LED01A 13/02/2015 12:13 dB(L) 115 120 92.3 108.5 102.1 97.2 91.9 P120HOZ08A 18/02/2015 9:41 dB(L) 115 120 93.6 93.2 92.9 89.2 91.9 P20307003A 18/02/2015 11:08 dB(L) 115 120 95.7 93.4 104.2 100.8 106.6 WW25LPP03B/W W25LPG01A 18/02/2015 12:41 dB(L) 115 120 88.6 103.9 103.9 82.0 87.5 WS36LLD03A 19/02/2015 9:38 dB(L) 115 120 102.7 93.2 89.9 95.7 89.9 WN41LEB02B WN41LEP03B 19/02/2015 11:07 dB(L) 115 120 107.3 116.4 99.8 77.3 96.4 RN03WK201A 20/02/2015 11:04 dB(L) 115 120 96.7 100.9 100.0 85.1 82.2 WG01UAA06A 20/02/2015 12:02 dB(L) 115 120 88.2 101.9 99.9 99.4 90.2 P20307004A 24/02/2015 10:34 dB(L) 115 120 94.4 88.4 89.1 96.2 101.1 WW25LED04A 24/02/2015 13:15 dB(L) 115 120 102.1 100.4 96.5 93.0 99.7 P120M0601A 25/02/2015 10:12 dB(L) 115 120 99.4 90.1 92.1 86.4 98.1 RW16AFA01A 25/02/2015 12:57 dB(L) 115 120 96.0 90.8 91.0 90.7 89.6 WN37ULP02A 26/02/2015 12:29 dB(L) 115 120 84.4 78.5 79.5 88.4 74.9 P120HOZ09A/P12 0WK608/P117P06 05C 27/02/2015 12:39 dB(L) 115 120 97.1 89.1 94.7 85.5 94.5 Table 4 Blast Monitoring – Vibration EPL Limits Monitoring Point Blast ID Date and Time Unit of Measure Only 5% of blasts may exceed 5 mm/s during the reporting period Blasts may not exceed 10 mm/s Moses Crossing Jerrys Plains Maison Dieu Warkworth Knodlers Lane P115R0103A 3/02/2015 11:13 mm/s 5 10 0.15 0.09 0.18 0.61 0.12 P203WK201A 4/02/2015 10:31 mm/s 5 10 0.08 0.03 0.17 0.57 0.17 WN41LEB01A 5/02/2015 11:06 mm/s 5 10 0.04 0.04 0.03 0.43 0.02 P117M0808D 6/02/2015 9:45 mm/s 5 10 0.01 0.01 0.04 0.09 0.03 WG01UAP03A/W W25LED02A 6/02/2015 12:37 mm/s 5 10 0.13 0.16 0.06 0.22 0.14 P120FCL01A 9/02/2015 12:31 mm/s 5 10 0.01 0.01 0.02 0.49 0.01 6 P20370P03A/P20 3WK203A 11/02/2015 12:04 mm/s 5 10 0.03 0.04 0.03 0.08 0.02 WS36LLD02A 12/02/2015 11:16 mm/s 5 10 0.09 0.13 0.06 0.17 0.04 P117P0605A 13/02/2015 10:04 mm/s 5 10 0.04 0.03 0.04 0.15 0.02 WS43LPP01A/WS 43LED01A 13/02/2015 12:13 mm/s 5 10 0.17 0.12 0.12 0.07 0.06 P120HOZ08A 18/02/2015 9:41 mm/s 5 10 0.08 0.04 0.14 0.32 0.11 P20307003A 18/02/2015 11:08 mm/s 5 10 0.16 0.08 0.42 1.36 0.40 WW25LPP03B/W W25LPG01A 18/02/2015 12:41 mm/s 5 10 0.12 0.13 0.06 0.07 0.06 WS36LLD03A 19/02/2015 9:38 mm/s 5 10 0.07 0.06 0.04 0.17 0.03 WN41LEB02B WN41LEP03B 19/02/2015 11:07 mm/s 5 10 0.07 0.07 0.08 0.21 0.05 RN03WK201A 20/02/2015 11:04 mm/s 5 10 0.04 0.02 0.02 0.03 0.02 WG01UAA06A 20/02/2015 12:02 mm/s 5 10 0.06 0.13 0.02 0.95 0.02 P20307004A 24/02/2015 10:34 mm/s 5 10 0.02 0.02 0.02 0.25 0.01 WW25LED04A 24/02/2015 13:15 mm/s 5 10 0.07 0.08 0.05 0.58 0.04 P120M0601A 25/02/2015 10:12 mm/s 5 10 0.00 0.00 0.01 0.05 0.01 RW16AFA01A 25/02/2015 12:57 mm/s 5 10 0.06 0.02 0.02 0.07 0.02 WN37ULP02A 26/02/2015 12:29 mm/s 5 10 0.11 0.08 0.08 0.11 0.03 P120HOZ09A/P12 0WK608/P117P06 05C 27/02/2015 12:39 mm/s 5 10 0.02 0.01 0.04 0.12 0.02 7 Appendix A: Hunter Valley Operations Monitoring Location Plans 8 Figure 1 Hunter Valley Operations Environmental Monitoring Locations 9