wilpinjong coal pty ltd environment protection licence … · 2017. 3. 22. · 3. dg13 no longer...

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

http://www.epa.nsw.gov.au/prpoeoapp/Detail.aspx?instid=12425&id=12425&option=licence&searchrange=licence&range=POEO%20licence&prp=no&status=Issued

http://www.epa.nsw.gov.au/prpoeoapp/Detail.aspx?instid=12425&id=12425&option=licence&searchrange=licence&range=POEO%20licence&prp=no&status=Issued

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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.

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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


metre per monthMonthly 1 1.7 1.1 4.0 No 29/03/16 13/04/16






metre per monthSpecial Frequency 1 1 1.8 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





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.

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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

.

.

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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

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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

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Figure 4 – Volume discharged per day (ML)

Figure 5 – Conductivity (max, min & average / day)

Figure 6 – pH (max, min & average / day)

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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.

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Wilpinjong Coal received report from Global Acoustics Pty Ltd on 24 March 2016.

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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

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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

05

-Mar

06

-Mar

07

-Mar

08

-Mar

09

-Mar

10

-Mar

11

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12

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14

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28

-Mar

29

-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

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Figure 8 – Air (Dust) Monitoring Locations

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Figure 9 – Attended Noise Monitoring Locations

wilpinjong coal pty ltd environment protection licence … · 2017. 3. 22. · 3. dg13 no longer...

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