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WILPINJONG COAL PTY LTD
Environment Protection Licence (EPL) 12425
Link to Environment Protection Licence EPL12425
LICENCE MONITORING DATA
MONTHLY SUMMARY REPORT
for
1 March 2016 to 31 March 2016
Page 2 of 16
Air Monitoring Air quality surrounding the Wilpinjong Coal Mine is monitored using:
1. tapered element oscillating microbalances (TEOM); 2. high volume air samplers (HV); and 3. dust deposition gauges (DG). In terms of the above equipment: 1. the TEOM and HVAS measure fine dust particles up to 10 microns in diameter (i.e. PM10); and 2. the DG measure the total dust deposited in the gauge during the sample period. All are influenced by mining as well as non mining activities in the local area. The location of the above monitoring equipment in relation to Wilpinjong Coal Mine is shown in Figure 8. A summary of the monitoring results for the month is provided in Table 1 and the yearly trends are also shown in Figures 1 to 3.
Page 3 of 16
Table 1
EPL ID
No.
Monitoring
Point ID.Pollutant Unit of Measure
Monitoring
Frequency
required by EPL
No. of times
measured
during month
Min. Value Max. Value Mean Value MeasurementAnnual
AverageLimit
Exceedn
(yes/no)
Date Last
Sampled
Date
Reported
3 DG4 Particulates - TSMgrams per square
metre per monthMonthly 1 0.8 29/03/16 13/04/16
4 DG5 Particulates - TSMgrams per square
metre per monthMonthly 1 1.7 1.1 4.0 No 29/03/16 13/04/16
6 DG8 Particulates - TSMgrams per square
metre per monthMonthly 1 1.1 29/03/16 13/04/16
9 DG11 Particulates - TSMgrams per square
metre per monthMonthly 1 9.2 29/03/16 13/04/16
10 DG12 Particulates - TSMgrams per square
metre per monthSpecial Frequency 1 1 1.8 29/03/16 13/04/16
11 DG13 Particulates - TSMgrams per square
metre per monthSpecial Frequency 1 1 14.2 29/03/16 13/04/16
12 DG14 Particulates - TSMgrams per square
metre per monthSpecial Frequency 1 1 3.5 29/03/16 13/04/16
17 DG15 Particulates - TSMgrams per square
metre per monthMonthly 1 0.8 29/03/16 13/04/16
13 HV1 PM10micrograms per
cubic metreEvery 6 days 4 8.9 16.7 12.6 50 30/03/16 18/04/16
19 HV4 PM10micrograms per
cubic metreEvery 6 days 5 12.8 21.2 16.9 50 30/03/16 18/04/16
20 HV5 PM10micrograms per
cubic metreEvery 6 days 5 5.5 23.0 14.5 50 30/03/16 18/04/16
22 TEOM3 PM10micrograms per
cubic metre
Continuous
(24 Hr Average)100.0% 4.9 21.2 13.3 50
23 TEOM4 PM10micrograms per
cubic metre
Continuous
(24 Hr Average)100.0% 1.6 29.8 13.2 50
Note: Limits specified in the above table are from Project Approval 05-0021.
Page 4 of 16
0.0
5.0
10.0
15.0
20.0
25.0
30.0A
pr-
15
May-1
5
Ju
n-1
5
Ju
l-15
Aug
-15
Sep
-15
Oct-
15
No
v-1
5
De
c-1
5
Ja
n-1
6
Feb
-16
Mar-
16D
us
t D
ep
os
itio
n (
g/m
2/m
on
th)
Month
Figure 1a. DG Results - 12 Month Trend
DG4
DG5
DG8
DG11
DG12
DG13
DG14
DG15
.
Notes: 1. Limit of 4 g/m2/month (annual average) applies to DG5 (Wollar Village) - refer Figure 1b. 2. No dust results were recorded in April due to Laboratory error. 3. DG13 no longer compliant with AS/NZS 3580.1.1:2007 as DG13 is within 5m of mine operations. DG13 to be removed from EPL
.
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Apr-
15
May-1
5
Ju
n-1
5
Ju
l-15
Aug
-15
Sep
-15
Oct-
15
No
v-1
5
De
c-1
5
Ja
n-1
6
Feb
-16
Mar-
16D
us
t D
ep
os
itio
n (
g/m
2/m
on
th)
Month
Figure 1b. DG 5 Results - Annual Average
DG5
Project Approval Limit
.
.
Page 5 of 16
0.00
10.00
20.00
30.00
40.00
50.00
60.00
Apr-15 May-15 Jun-15 Jul-15 Aug-15 Sep-15 Oct-15 Nov-15 Dec-15 Jan-16 Feb-16 Mar-16
Part
icu
late
Matt
er
<10 µ
m (µ
g/m
3)
Month
Figure 2. HV (PM10) Results - 12 Month Trend
HV1 (Wollar)
HV4 (Robinsons)
HV5 (Araluen Lane)
24 hour PM10 limit(refer notes)
Notes: 1. Limit doesn't apply for extraordinary events such as bushfires, prescribed burning, or dust storms. 2. A power outage prevented dust sample being collected from HV1 on 14 September 2015 and 6 March 2016 3. HV5 influenced by dust from Araluen Road generally during stable atmospheric conditions (i.e. dry, temperature inversion and no wind).
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
01-Apr 01-May 01-Jun 01-Jul 01-Aug 01-Sep 01-Oct 01-Nov 01-Dec 01-Jan 01-Feb 01-Mar
PM
10
(µ
g/m
³)
Month
Figure 3. TEOM (PM10) Results - 12 Month Trend
TEOM 4(Araluen Lane)
TEOM 3 (WollarVillage)
24 hour PM10Limit (referNotes)
Notes: 1. Limit dosen't apply for extraordinary events such as bushfires, prescribed burning or dust storms 2. Regional dust storm occurred 6 May also elevated regional dust levels December 17. 3. Elevated PM10 dust levels recorded mid Feb caused by Totness bushfire and dust from Araluen Lane
Totness bushfire
For comparison below is the 24Hr Av. PM10
Dust Levels recorded at Bathurst and
Merriwa by NSW EPA from 1 to 31 Mar 2016
Page 6 of 16
Surface Water Monitoring Surface water runoff is isolated and diverted around disturbed areas through the construction of water diversion bunds. Runoff from disturbed areas is diverted into on-site water retention dams. A Reverse Osmosis (RO) Plant treats all water from the retention dams before it is discharged to Wilpinjong Creek. The EPL specifies limits for the quantity and quality of water that may be discharged from the site. A summary of the monitoring results for the month is provided in Table 2. The continuous monitoring results for pH, conductivity and volume are also shown in Figures 4 to 6.
Table 2
EPL ID
No.
Monitoring
Point ID.Pollutant Unit of Measure
Monitoring
Frequency
required by EPL
No. of times
measured
during month
Min. Value Max. Value Mean Value Measurement LimitExceed
n
(yes/no)
Date Last
Sampled
Date Last
Reported
24RO Plant
DischargeConductivity
microSiemens per
centimetre (uS/cm)
Continuous during
discharge100% 135.0 385.0 235.0 500 No
Oil and Greasemilligrams per litre
(mg/L)
Weekly during any
discharge8 <5 <5 <5 10.0 No 28/03/16 11/04/16
pH pH UnitContinuous during
discharge100% 6.6 8.3 7.1 ≥6.5≤8.5 No
Total Suspended
Solids
milligrams per litre
(mg/L)
Weekly during any
discharge8 <1 2 1 50 No 28/03/16 11/04/16
Volume
dischargedmegalitres per day
Continuous during
discharge100% 0.00 1.60 0.50 5.0 No
Page 7 of 16
Figure 4 – Volume discharged per day (ML)
Figure 5 – Conductivity (max, min & average / day)
Figure 6 – pH (max, min & average / day)
Page 8 of 16
Noise Monitoring Environmental noise monitoring (“monitoring”) is carried out on a monthly basis. The purpose of the monitoring is to assess whether mining operations are consistent with the objectives of the EPL and the development consent conditions. In terms of this monitoring, it is undertaken: 1. by an independent noise consultant; 2. during the night-time; and 3. at the sites shown in Figure 9. On pages 9 and 10 of this report are the noise levels and findings from the consultant’s report.
Page 9 of 16
Page 10 of 16
Wilpinjong Coal received report from Global Acoustics Pty Ltd on 24 March 2016.
Page 11 of 16
Blasting Monitoring is carried out near sensitive locations during blasting activities to determine the vibration in the air (overpressure) and earth (ground vibration). A summary of the results of this monitoring, and the limits specified in the EPL, are shown in Tables 3 and 4. Figure 7 shows the actual overpressure and vibration levels recorded during the month.
Table 3 – Overpressure Monitoring Results
Location Month Number of
Blasts
Minimum overpressure
(dB(L))
Maximum overpressure
(dB(L))
Mean overpressure
(dB(L))
EPL overpressure Limits (dB(L))
Exceedance (yes/no)
Approx. 50m west of the Wollar Public School
March 18 75.8 104.8 87.0 115dB (95% blasts)
120 dB (100% blasts) no
Table 4 – Vibration Monitoring Results
Location Month Number of
Blasts
Minimum vibration (mm/sec)
Maximum vibration (mm/sec)
Mean vibration (mm/sec)
EPL vibration Limits
(mm/sec)
Exceedance (yes/no)
Approx. 50m west of the Wollar Public School
March 18 0.03 0.73 0.19 5 mm/s (95% blasts)
10 mm/s (100% blasts) no
Page 12 of 16
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0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0
20
40
60
80
100
120
02
-Mar
03
-Mar
04
-Mar
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-Mar
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-Mar
30
-Mar
31
-Mar
Vib
rati
on
(m
m/s
ec)
Ove
rpre
ssu
re (
dB
L)
Date
Figure 7. Overpressure (dBL) and Vibration (mm/sec) recorded during Month
Overpressure (dBL) Vibration (mm/s)
EPL Limit: 120 dBL EPL Limit: 10 mm/sec
Page 13 of 16
Figure 8 – Air (Dust) Monitoring Locations
Page 14 of 16
Page 15 of 16
Figure 9 – Attended Noise Monitoring Locations
Page 16 of 16