TITLE PREPARED BY Integra Open Cut Monthly Environmental Report April 212 Integra Coal SIGTURE DATE 8 th June 212 DISTRIBUTION 1. Integra Coal Website Environmental Advisor PAGE 1 of 15
Table of Contents 1. INTENT... 3 2. SCOPE... 3 3. DEFINITIONS... 3 4. REFERENCES... 3 5. MONITORING RESULTS... 3 5.1 Blast Monitoring Results... 3 5.2 Air Quality Monitoring Results... 1 5.3 Noise Monitoring Results... 11 5.4 Water Monitoring Results... 11 5.5 Environmental Conditions... 13 Environmental Advisor PAGE 2 of 15
1. INTENT To provide monthly updates of the mine s environmental performance and assess compliance against specific consent conditions. To keep the company and stakeholders informed of the mine s environmental performance and maintain a transparent and accountable reporting system to inform all relevant stakeholders. 2. SCOPE This report covers various environmental conditions that are monitored at Integra Coal Open Cut. These conditions, where applicable, are measured against consent criteria to determine compliance. Including; Blast monitoring results; Air quality monitoring results; Noise monitoring results; Water monitoring results; and Environmental conditions over the month. 3. DEFINITIONS TSP Total Suspended Particles PM 1 Particulate Matter less than 1 microns in diameter HVAS High Volume Air Sampler SWL Standing Water Level, the groundwater level measured from the top of the bore hole casing. db (L) decibel (linear maximum) db LAeq(15 minute) decibel (linear weighted average over 15 minutes) µg/m 3 micrograms per cubic metre g/m 2.month grams per square meter per month 4. REFERENCES Carbon Based Environmental - Integra Open Cut Monthly Monitoring Report, April 212 Integra Coal Monthly Environmental Report, April 212 North Open Cut Water Management Plan, 5 March 29, Geoterra Pty Ltd Project Approval, PA 8_11 and 8_12 dated 18 March 212 5. MONITORING RESULTS 5.1 Blast Monitoring Results The following tables show the blast monitoring results from all blasts initiated during the month. Environmental Advisor PAGE 3 of 15
Note: Western Highwall, Possum Skin Dam and Tailings Dam are installed for risk management purposes and do not reflect blast results on freehold land. These locations are also not required to be monitored under the conditions of the relevant project approval. CWC1CR 3/4/212 12:19.7 86.4 Cheetham CWC1CR 3/4/212 12:19.3 88.8 Lambkin CWC1CR 3/4/212 12:19.3 8.8 Langdon Monitor Offline Possum Skin Dam CWC1CR 3/4/212 12:19.5 92.6 Tailings Dam CWC1CR 3/4/212 12:19.41 96.3 Watling CWC1CR 3/4/212 12:19.8 86.6 Cherry CWC1CR 3/4/212 12:19 1.34 18.1 Dulwich CWC1CR 3/4/212 12:19 19.16 118.4 Western Highwall CWC1CR 3/4/212 12:19.3 83.8 Moran CWC1CR 3/4/212 12:19.15 73.7 Noble CWC1CR 3/4/212 12:19.2 76 Jensen CWC1CR 3/4/212 12:19.2 88.4 Bridge CWC1CV 4/4/21212:17.52 11.6 Cheetham CWC1CV 4/4/21212:17.4 99.5 Lambkin CWC1CV 4/4/21212:17.8 91.2 Langdon CWC1CV 4/4/21212:17.17 1.1 Possum Skin Dam CWC1CV 4/4/21212:17.18 97.9 Tailings Dam CWC1CV 4/4/21212:17.3 12.2 Watling CWC1CV 4/4/21212:17.43 12.6 Cherry CWC1CV 4/4/21212:17.1 96 Dulwich CWC1CV 4/4/21212:17.2 94.9 Western Highwall CWC1CV 4/4/21212:17.9 98.8 Moran CWC1CV 4/4/21212:17.25 81.1 Noble CWC1CV 4/4/21212:17.16 87.3 Jensen CWC1CV 4/4/21212:17.15 11.8 Bridge Environmental Advisor PAGE 4 of 15
CWC1CX 5/4/21212:15.5 93.1 Cheetham CWC1CX 5/4/21212:15.3 98.7 Lambkin CWC1CX 5/4/21212:15.2 77.9 Langdon CWC1CX 5/4/21212:15.16 16.5 Possum Skin Dam CWC1CX 5/4/21212:15.7 89.1 Tailings Dam CWC1CX 5/4/21212:15.31 99.9 Watling CWC1CX 5/4/21212:15.5 88.7 Cherry CWC1CX 5/4/21212:15 1.57 114.8 Dulwich CWC1CX 5/4/21212:15 12.94 118.1 Western Highwall CWC1CX 5/4/21212:15.3 86.1 Moran CWC1CX 5/4/21212:15.19 81.7 Noble CWC1CX 5/4/21212:15.2 88.9 Jensen CWC1CX 5/4/21212:15.1 94.1 Bridge CWC1D4 12/4/212 11:17.16 89.1 Cheetham CWC1D4 12/4/212 11:17.14 91.9 Lambkin CWC1D4 12/4/212 11:17.1 8.3 Langdon Monitor Offline Possum Skin Dam CWC1D4 12/4/212 11:17.15 88 Tailings Dam CWC1D4 12/4/212 11:17 1.3 12.4 Watling CWC1D4 12/4/212 11:17.13 89.9 Cherry CWC1D4 12/4/212 11:17 2.9 112.8 Dulwich CWC1D4 12/4/212 11:17 15.61 118.9 Western Highwall CWC1D4 12/4/212 11:17.9 84.3 Moran CWC1D4 12/4/212 11:17.51 84.4 Noble CWC1D4 12/4/212 11:17.7 79.5 Jensen CWC1D4 12/4/212 11:17.5 92.2 Bridge Environmental Advisor PAGE 5 of 15
CWC1D6 13/4/212 11:1.7 84.1 Cheetham CWC1D6 13/4/212 11:1.4 86.9 Lambkin CWC1D6 13/4/212 11:1.3 8.8 Langdon Monitor Offline Possum Skin Dam CWC1D6 13/4/212 11:1.5 86.1 Tailings Dam CWC1D6 13/4/212 11:1.21 99.3 Watling CWC1D6 13/4/212 11:1.11 83.2 Cherry CWC1D6 13/4/212 11:1 1.3 17.9 Dulwich CWC1D6 13/4/212 11:1 3.83 117.1 Western Highwall CWC1D6 13/4/212 11:1.3 77.8 Moran CWC1D6 13/4/212 11:1.12 77.3 Noble CWC1D6 13/4/212 11:1.3 75.2 Jensen CWC1D6 13/4/212 11:1.2 84.3 Bridge CWC1D7 13/4/212 12:7 1.4 13.7 Cheetham CWC1D7 13/4/212 12:7.35 97.2 Lambkin CWC1D7 13/4/212 12:7.32 12.2 Langdon Monitor Offline Possum Skin Dam CWC1D7 13/4/212 12:7 1.21 11.4 Tailings Dam CWC1D7 13/4/212 12:7.15 85 Watling CWC1D7 13/4/212 12:7.92 11.7 Cherry CWC1D7 13/4/212 12:7.36 98 Dulwich CWC1D7 13/4/212 12:7.29 87.1 Western Highwall CWC1D7 13/4/212 12:7.29 96.7 Moran CWC1D7 13/4/212 12:7.58 86.5 Noble CWC1D7 13/4/212 12:7.41 83 Jensen CWC1D7 13/4/212 12:7.61 98.8 Bridge Environmental Advisor PAGE 6 of 15
CWC1DA 18/4/212 1:56 1.35 18.5 Cheetham CWC1DA 18/4/212 1:56.47 95.6 Lambkin CWC1DA 18/4/212 1:56.6 94.7 Langdon CWC1DA 18/4/212 1:56 1.66 11.2 Tailings Dam CWC1DA 18/4/212 1:56.19 92 Watling CWC1DA 18/4/212 1:56 1.17 16.9 Cherry CWC1DA 18/4/212 1:56 1.86 113.5 Possum Skin Dam CWC1DA 18/4/212 1:56.42 98.1 Dulwich CWC1DA 18/4/212 1:56.29 91.8 Western Highwall CWC1DA 18/4/212 1:56.44 89.6 Moran CWC1DA 18/4/212 1:56.67 85.4 Noble CWC1DA 18/4/212 1:56.6 9.8 Jensen CWC1DA 18/4/212 1:56.87 13 Bridge CWC1DE 19/4/212 1:57.5 87.8 Cheetham CWC1DE 19/4/212 1:57.3 88.1 Lambkin CWC1DE 19/4/212 1:57.1 79.3 Langdon CWC1DE 19/4/212 1:57.3 93.5 Tailings Dam CWC1DE 19/4/212 1:57.28 16.7 Watling CWC1DE 19/4/212 1:57.4 87.2 Cherry CWC1DE 19/4/212 1:57.13 95.9 Possum Skin Dam CWC1DE 19/4/212 1:57.83 114.2 Dulwich CWC1DE 19/4/212 1:57 4.27 128.7 Western Highwall CWC1DE 19/4/212 1:57.2 79.4 Moran CWC1DE 19/4/212 1:57.9 82.3 Noble CWC1DE 19/4/212 1:57.1 8.5 Jensen CWC1DE 19/4/212 1:57.1 86.7 Bridge Environmental Advisor PAGE 7 of 15
CWC1DF 2/4/212 12:8.9 88.5 Cheetham CWC1DF 2/4/212 12:8.6 86.7 Lambkin CWC1DF 2/4/212 12:8.2 78.3 Langdon CWC1DF 2/4/212 12:8.6 89 Tailings Dam CWC1DF 2/4/212 12:8.29 12.2 Watling CWC1DF 2/4/212 12:8.18 87 Cherry CWC1DF 2/4/212 12:8.23 95.5 Possum Skin Dam CWC1DF 2/4/212 12:8 3.7 111 Dulwich CWC1DF 2/4/212 12:8 3.21 116.2 Western Highwall CWC1DF 2/4/212 12:8.6 78.5 Moran CWC1DF 2/4/212 12:8.13 73 Noble CWC1DF 2/4/212 12:8.3 74.7 Jensen CWC1DF 2/4/212 12:8.2 87.6 Bridge CWC1DH 24/4/212 1:33.8 97.8 Cheetham CWC1DH 24/4/212 1:33.7 97.5 Lambkin CWC1DH 24/4/212 1:33.4 9.3 Langdon CWC1DH 24/4/212 1:33.8 93.1 Tailings Dam CWC1DH 24/4/212 1:33.66 95.6 Watling CWC1DH 24/4/212 1:33.7 97.5 Cherry CWC1DH 24/4/212 1:33.2 15.9 Possum Skin Dam CWC1DH 24/4/212 1:33.76 111.1 Dulwich CWC1DH 24/4/212 1:33 23.62 122.7 Western Highwall CWC1DH 24/4/212 1:33.4 78.5 Moran CWC1DH 24/4/212 1:33.41 75.1 Noble CWC1DH 24/4/212 1:33.4 98.2 Jensen CWC1DH 24/4/212 1:33.3 93.8 Bridge Environmental Advisor PAGE 8 of 15
CWC1DJ 27/4/21211:58.9 9.9 Cheetham CWC1DJ 27/4/212 11:58.4 89.8 Lambkin Monitor Offline Langdon CWC1DJ 27/4/212 11:58.6 87.6 Tailings Dam CWC1DJ 27/4/212 11:58.2 97.5 Watling CWC1DJ 27/4/212 11:58.8 87.9 Cherry CWC1DJ 27/4/212 11:58.19 98 Possum Skin Dam CWC1DJ 27/4/212 11:58 3.1 115.9 Dulwich CWC1DJ 27/4/212 11:58 5.35 122.1 Western Highwall CWC1DJ 27/4/212 11:58.4 85.7 Moran CWC1DJ 27/4/212 11:58.1 8.1 Noble CWC1DJ 27/4/212 11:58.2 78.7 Jensen CWC1DJ 27/4/212 11:58.1 89.4 Bridge CWC1DN 3/4/21212:2.16 81.1 Cheetham CWC1DN 3/4/212 12:2.9 86.1 Lambkin CWC1DN 3/4/212 12:2.7 73 Langdon CWC1DN 3/4/212 12:2.1 91.5 Tailings Dam CWC1DN 3/4/212 12:2.7 13.4 Watling CWC1DN 3/4/212 12:2.12 84.3 Cherry CWC1DN 3/4/212 12:2.46 97.9 Possum Skin Dam CWC1DN 3/4/212 12:2 2.29 18.6 Dulwich CWC1DN 3/4/212 12:2 7 118.5 Western Highwall CWC1DN 3/4/212 12:2.5 79.4 Moran CWC1DN 3/4/212 12:2.49 83 Noble CWC1DN 3/4/212 12:2.4 83.1 Jensen CWC1DN 3/4/212 12:2.4 86 Bridge Environmental Advisor PAGE 9 of 15
The above tables show that one blast result 27/4/212 was above 5mm/sec but below the 1mm/sec criteria, which is allowable only for 5% of blasts in a 12 month period. The compliance against the overall 12 month period will be reported in the EPL Annual Return and Annual Environmental Management Report. The blasting limits applying to Integra Coal are detailed in the tables below. Air-blast Overpressure Level (dbl) Allowable Exceedance 115 5% of the total number of blasts in a 12 month period 12 Nil Peak Particle Velocity (mm/s) Allowable Exceedance 5 5% of the total number of blasts in a 12 month period 1 Nil 5.2 Air Quality Monitoring Results The following tables contain monthly air quality monitoring summaries conducted by Carbon Based on behalf of Integra Coal Open Cut. Deposited Dust Site Monthly Insoluble Solids (g/m2.month) D2 Note 1 1.2 D3* 8.4 D4* 3.7 D5 1.8 D6 Note 1.7 D7 3.1 D8 3.2 D9 2.1 D1 1.9 D11 1.6 D12 1.8 D13 2.4 D14* 1.7 D15 1.2 Environmental Advisor PAGE 1 of 15
D16 2.6 DD16N 2.7 DD16E 1.4 DD16S.7 DD16W 3.2 * contaminated result from bird droppings, insects or vegetation Note 1: Data is from Rix s Creek and may not always be available at the time of monthly report completion. HVAS - TSP HVAS PM 1 5.3 Noise Monitoring Results Site Value Date Result TSP (µg/m 3 ) HV1 Highest 8/4/212 42 HV1 Lowest 2/4/212 7 HV2 Highest 8/4/212 69 HV2 Lowest 2/4/212 45 HV3 Highest 14/4/212 66 HV3 Lowest 2/4/212 38 Site Value Date Result PM 1 (µg/m 3 ) HV1 Highest 14/4/212 26 HV1 Lowest 2/4/212 11 HV3 Highest 2/4/212 2 HV3 Lowest 2/4/212 2 HV4 Highest 14/4/212 23 HV4 Lowest 27/3/212 1 Quaterly Noise monitoring was not conducted during the month of April 212. 5.4 Water Monitoring Results Monthly surface water monitoring in the North Open Cut was conducted on the 18 th April 212. Surface water monitoring involves collecting water samples from a number of locations around site and analysing for several physical and chemical parameters including ph, electrical conductivity and total suspended solids. Ground water monitoring in the North Open Cut was conducted on the 18 th April 212 and involved measuring the depth of each water source as well as analyzing for several physical and chemical parameters including ph, electrical conductivity and TSS. Environmental Advisor PAGE 11 of 15
Surface Water monitoring results April 212 Monitoring Point Location Date ph EC (µs/cm) W1 Station Creek 18/4/212 8.3 335 W3 Martins Creek 18/4/212 6.1 27 W4 Glennies Creek Up 18/4/212 7.8 42 W5 Glennies Creek Down 18/4/212 7.8 414 W6 Blackwattle Creek 18/4/212 8.2 924 W7 Stony Creek 18/4/212 7.2 848 W1 Dam C4 18/4/212 8.5 332 W11 Glennies Creek NEH 18/4/212 8 555 W12 Dam C1 18/4/212 W13 Dam C6 18/4/212 7.2 172 W14 Dam C3 18/4/212 8.4 4 W15 Dam C6A 18/4/212 7.5 56 W16 Dam C8 18/4/212 8.6 445 W17 Dam C2 18/4/212 7.3 625 W18 Dam C5 18/4/212 7.2 192 W19 Dam D1 18/4/212 8.3 55 W2 North Dam 1 18/4/212 8.6 987 W21 North Dam 2 18/4/212 1 979 W22 Station Creek Up 18/4/212 8.29 324 W23 Station Creek Down 18/4/212 8.1 314 No access Ground water monitoring results April 212 Monitoring Point Date ph EC (µs/cm) Depth (m) GC2 18/4/212 8.12 112 6.2 GC5 18/4/212 7.65 117 35.45 GC9 18/4/212 7.2 349 6.7 Richards Bore 18/4/212 7.71 473 12.82 Environmental Advisor PAGE 12 of 15
Environmental Conditions The following graphs outline the environmental conditions occurring throughout the month. Environmental Advisor PAGE 13 of 15
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