WHITEHAVEN CHPP - MONTHLY MONITORING SUMMARY

Site Information

EPL No: 3637

EPA Website Link:http://www.epa.nsw.gov.au/prpoeoapp/ViewPOEOLicence.aspx?DOCID=33514&SYSUID=1&LICID=3637

Licensee: Whitehaven Coal Mining Limited

Licensee Address: Boggabri Road, Gunnedah NSW 2380

EPL Monitoring Points: See Figure 1 below

Sampling Period: March 2024

Obtained Date: 16th April 2024

Publication Date: 17th April 2024

Table 1 - No Pollutant Limits Apply

EPL

Units of

Monitoring

No. of

Date

Date

Min

Mean

Median

Max or

Pollutant

Measurements

Only

ID

Measure

Frequency

Sampled

Obtained

Value

Value

Value

for the Month

Value

3

Solid Particles

g/m2/month

Continuous

1

19/03/2024

03/04/2024

-

-

-

1.1

06/03/2024

16/04/2024

11

PM10

µg/m3

Every 6 days

5

12/03/2024

4.6

9.58

9.2

14.4

18/03/2024

(Last sampled

Kendo

24/03/2024

received)

30/03/2024

06/03/2024

16/04/2024

12

PM10

µg/m3

Every 6 days

5

12/03/2024

6.5

10.54

10.2

14.8

18/03/2024

(Last sampled

Olive View

24/03/2024

received)

30/03/2024

Conductivity

µs/cm

-

-

-

-

Oil and Grease

mg/L

Each overflow

-

-

-

-

6

Total Organic Carbon

mg/L

-

-

-

-

event

-

-

Total Suspended Solids

mg/L

0

-

-

-

-

pH

pH

-

-

-

-

Conductivity

µs/cm

-

-

-

-

7

Oil and Grease

mg/L

Quarterly

0

-

-

-

-

Total Organic Carbon

mg/L

-

-

-

-

1

WHITEHAVEN CHPP - MONTHLY MONITORING SUMMARY

EPL

Units of

Monitoring

No. of

Date

Date

Min

Mean

Median

Max or

Pollutant

Measurements

Only

ID

Measure

Frequency

Sampled

Obtained

Value

Value

Value

for the Month

Value

Total Suspended Solids

mg/L

-

-

-

-

pH

pH

-

-

-

-

Table 2 - Groundwater Monitoring (Quarterly - No Limits apply)

EPL

Units of

Monitoring

No. of

Date

Date

Min

Mean

Max or Only

Pollutant

Samples for

Median Value

ID

Measure

Frequency

Sampled

Obtained

Value

Value

Value

the Period

Ammonia

mg/L

-

-

-

0.04

Bicarbonate

mg/L

-

-

-

1310

Calcium

mg/L

-

-

-

83

Chloride

mg/L

-

-

-

1840

Conductivity

µs/cm

-

-

-

10200

Lead

mg/L

-

-

-

0.002

8

Magnesium

mg/L

Quarterly

07/03/2024

15/03/2024

-

-

-

190

Nitrate

mg/L

(P1)

1

-

-

-

0.13

Potassium

mg/L

-

-

-

30

Sodium

mg/L

-

-

-

2040

Standing

m

-

-

-

6.31

Water Level

Sulphate

mg/L

-

-

-

1190

pH

pH

-

-

-

7.80

Ammonia

mg/L

-

-

-

1.14

9

Bicarbonate

mg/L

Quarterly

07/03/2024

15/03/2024

-

-

-

922

Calcium

mg/L

(P2)

1

-

-

-

286

Chloride

mg/L

-

-

-

1020

2

WHITEHAVEN CHPP - MONTHLY MONITORING SUMMARY

EPL

Units of

Monitoring

No. of

Date

Date

Min

Mean

Max or Only

Pollutant

Samples for

Median Value

ID

Measure

Frequency

Sampled

Obtained

Value

Value

Value

the Period

Conductivity

µs/cm

-

-

-

6280

Lead

mg/L

-

-

-

<0.001

Magnesium

mg/L

-

-

-

238

Nitrate

mg/L

-

-

-

0.15

Potassium

mg/L

-

-

-

104

Sodium

mg/L

-

-

-

712

Standing

M

-

-

-

1.98

Water Level

Sulphate

mg/L

-

-

-

736

pH

pH

-

-

-

6.27

Ammonia

mg/L

-

-

-

4.50

Bicarbonate

mg/L

-

-

-

808

Calcium

mg/L

-

-

-

239

Chloride

mg/L

-

-

-

1260

Conductivity

µs/cm

-

-

-

6160

Lead

mg/L

-

-

-

<0.001

10

Magnesium

mg/L

Quarterly

07/03/2024

15/03/2024

-

-

-

216

Nitrate

mg/L

(P3)

1

-

-

-

1.93

Potassium

mg/L

-

-

-

65

Sodium

mg/L

-

-

-

683

Standing

M

-

-

-

1.32

Water Level

Sulphate

mg/L

-

-

-

270

pH

pH

-

-

-

7.28

3

WHITEHAVEN CHPP - MONTHLY MONITORING SUMMARY

Table 3 - Monitoring (Quarterly Noise - Limits Apply)

Measured levels -

(Potential)

EPL

Date

Measurement

CHPP - dB(A)

Limit(s)-

Wind speed (m/s)

Observations

Non-

ID

Period

LA1, 1

LAeq, 15

dB(A)

compliance

minute

minute

/breach

14/03/2024

15 mins day

-

I/A

35

1.8

Animals 65-70, Traffic 40-46, Aircraft 58,

Birds 45-56

N1

14/03/2024

15 mins evening

-

30

35

1.1

Site Noise: Dozer, Insects 40-42, Dogs 48-

No

57, Traffic 30-35

15 mins night

-

28

35

Calm

Site Noise: Dozer, Traffic 34-44, Dogs 57-60

1 min night

38

-

45

Calm

Notes:

dB(A): The overall level of a sound is usually expressed in terms of dBA, which is measured using a sound level meter with an "A-weighting" filter. This is an electronic filter having a frequency response

corresponding approximately to that of human hearing.

LAeq, 15 minute: The A-weighted equivalent noise level (basically the average noise level). It is defined as the steady sound level that contains the same amount of acoustical energy as the corresponding time-varying sound, in this instance over a period of 15 minutes.

LA1, 1 minute: The noise level exceeded for 1% of the 15 minute interval.

I/A: When site noise is noted as inaudible (I/A), no site noise was audible at the monitoring location.

Not Measurable (NM): indicates that some site noise was audible, but indeterminate due to one of the following reasons:

  • site noise levels were insignificant and unlikely, in many cases, to be even noticed; or
  • site noise levels were masked by another relatively loud noise source, but were estimated to be less than LAeq 30 dB, which is insignificant in terms of any applicable criterion.

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WHITEHAVEN CHPP - MONTHLY MONITORING SUMMARY

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Disclaimer

Whitehaven Coal Limited published this content on 16 April 2024 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 18 April 2024 04:02:05 UTC.