MAULES CREEK COAL MINE - MONTHLY MONITORING SUMMARY

Site Information

EPL No: 20221

EPA Website Link:Hyperlink to Maules Creek Coal, Environment Protection Licence

Licensee: Maules Creek Coal Mine Pty Ltd

Licensee Address: Maules Creek Coal Mine, Therribri Road, BOGGABRI NSW 2382

EPL Monitoring Points: See Figure 1 below

Sampling Period: April 2022

Obtained Date: 13th May 2022

Publication Date: 16th May 2022

Context: This Monthly Monitoring Summary aligns with the Environment Protection Licence (EPL) No. 20221 - Maules Creek Coal Mine issued 7th March 2018 by the NSW Environment Protection Authority (EPA).

Monthly Monitoring Summary

Table 1 - Wet Weather Discharge - Surface Water Monitoring

ID

Laboratory

Min

Mean

Median

Max / Only

Parameter

Units

Frequency

Samples

Date

Results

EPL (Site)

Value

Value

Value

Value

Received

TSS

mg/L

Special

3

Conductivity

µs/cm

Frequency

(SD3)

Oil & Grease

mg/L

Discharge only

pH

pH

No discharge at these locations this month

TSS

mg/L

Special

36

Conductivity

µs/cm

Frequency

(SD12)

Oil & Grease

mg/L

Discharge only

pH

pH

Table 2 - Surface Water Monitoring - Mine Void

ID

Parameter

Units

Frequency

Samples

Date

Laboratory Results

Min

Mean

Max / Only

EPL (Site)

Received

Value

TSS

mg/L

12

Conductivity

µs/cm

Every 2

Next Sample May 2022

(Mine Void)

Oil & Grease

mg/L

months

pH

pH

Table 3 - Groundwater Quality Monitoring

ID

Laboratory

Max / Only

Parameters

Units

Frequency

Samples

Date

Results

Min

Mean

EPL (Bore)

Value

Received

15

pH

pH

Conductivity

µs/cm

Quarterly

0

(BCM01)

TDS

mg/L

16

pH

pH

Conductivity

µs/cm

Quarterly

0

(BCM03)

TDS

mg/L

Next sample in June 2022

17

pH

pH

Conductivity

µs/cm

Quarterly

0

(REG10A)

TDS

mg/L

24

pH

pH

Conductivity

µs/cm

Quarterly

0

(RB05A)

TDS

mg/L

Table 4 - Noise Monitoring (Attended - Measured)

Limit

LAeq

Limit

MCCP

LA1 (1 min)

15min (dB)

MCCP

Start

Wind Speed

LAeq 15min

(dB)

Weather

Exceedance

MCC ID

Date

LAeq

1min

Time

(m/s)

dB

Rain (mm)

(Yes / No)

Operations

dB

Operations

Criteria

Criteria

NM1

12/04/2022

23:30

0.4

IA

35

IA

45

0.0

No

NM2

12/04/2022

23:00

0.1

28

39

31

45

0.0

No

NM3

12/04/2022

23:32

0.3

IA

35

IA

45

0.0

No

NM4

12/04/2022

22:30

0.8

26

35

32

45

0.0

No

NM5

13/04/2022

00:00

0.6

IA

35

IA

45

0.0

No

NM6

12/04/2022

23:00

0.5

25

35

28

45

0.0

No

MCC ID = Locations as per the EPL No.20221.

ND = No data due to high prevailing winds during the attended noise monitoring event.

Italicised text indicates wind speed exceeds the 3.0m/s maximum for noise monitoring.

NM = Not Measurable. If site noise is noted as NM, <20 dB or <30 dB, this means some noise was audible but could not be quantified.

IA = Site noise was inaudible at the monitoring location.

N/A in exceedance column means criterion was not applicable due to atmospheric conditions outside those specified in the project approval.

Table 5 - Noise Monitoring (Attended - Low Frequency Assessment)

None of the measurements satisfied the conditions for further assessment when assessed for the applicability of low frequency modification factors in accordance with the EPA's Noise Policy for Industry. Therefore no further assessment of low frequency noise was required to be undertaken.

Table 6 - Blast Monitoring (Blasts - Limits Apply)

Location

Parameter

Units

Frequency

Number

Average

Max

100% Limit

Exceedance

(Yes / No)

Operations

Overpressure

Db (Lin Peak)

All

6

93.25

107.9

120

No

Blasts

Vibration

mm/s

6

0.13

0.29

10

No

Note: As of March 2018, in accordance with the requirements of the approved variation of EPL 20221; M7.1 blast monitoring results are for four blast monitoring points 31 (BM1), 32 (BM2), 33 (BM3) and 34 (BM4).

Table 7 - Dust Monitoring (Limits Apply)

ID

Sample

Rolling

NEPM

Exceedance

Unit

Parameter

Annual

Annual

EPL (Site)

period

(Yes / No)

Average

Criteria

18

Continuous

µg/m3 month

PM10

5.6

30

No

(TEOM1)

19

5 days

µg/m3

PM10

8.8

30

No

(HVAS)

Rolling

ID

Sample

Particulates

Annual

Exceedance

Deposited

Average

Criteria

EPL (Site)

period

(Yes / No)

Matter

Insoluble

Solids

20

Monthly

g/m2 month

1.6

4

No

(DDG1/MC1)

21

Monthly

g/m2 month

1.5

4

No

(DDG2/MC2)

22

Monthly

g/m2 month

1.6

4

No

(DDG3/MC3)

23

Monthly

g/m2 month

1.3

4

No

(DDG4/MC4)

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Disclaimer

Whitehaven Coal Limited published this content on 16 May 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 16 May 2022 07:19:02 UTC.