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: February 2024

Obtained Date: 19th March 2024

Publication Date: 20th March 2024

Table 1 - No Pollutant Limits Apply

EPL

Pollutant

Units of

Monitoring

No. of

Date

Date

Min

Mean

Median

Max or

Measurements

Only

ID

Measure

Frequency

Sampled

Obtained

Value

Value

Value

for the Month

Value

3

Solid Particles

g/m2/month

Continuous

1

16/02/2024

19/03/2024

-

-

-

4.5

PM10

05/02/2024

13/03/2024

11

µg/m3

Every 6 days

5

11/02/2024

3.5

12.24

6.8

35.3

17/02/2024

(Last sampled

Kendo

23/02/2024

received)

29/02/2024

PM10

05/02/2024

13/03/2024

12

µg/m3

Every 6 days

5

11/02/2024

4.8

12.02

10.4

25.2

17/02/2024

(Last sampled

Olive View

23/02/2024

received)

29/02/2024

Conductivity

µs/cm

-

-

-

-

-

-

6

Oil and Grease

mg/L

Each overflow

0

-

-

-

-

Total Organic Carbon

mg/L

-

-

-

-

event

Total Suspended Solids

mg/L

-

-

-

-

pH

pH

-

-

-

-

7

Conductivity

µs/cm

Quarterly

1

05/02/2024

-

-

-

1290

Oil and Grease

mg/L

14/02/2024

-

-

-

<5

Total Organic Carbon

mg/L

-

-

-

4

1

WHITEHAVEN CHPP - MONTHLY MONITORING SUMMARY

EPL

Pollutant

Units of

Monitoring

No. of

Date

Date

Min

Mean

Median

Max or

Measurements

Only

ID

Measure

Frequency

Sampled

Obtained

Value

Value

Value

for the Month

Value

Total Suspended Solids

mg/L

-

-

-

13

pH

pH

-

-

-

8.30

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

EPL

Pollutant

Units of

Monitoring

No. of

Date

Date

Min

Mean

Median Value

Max or Only

Samples for

ID

Measure

Frequency

Sampled

Obtained

Value

Value

Value

the Period

Ammonia

mg/L

-

-

-

-

Bicarbonate

mg/L

0

-

-

-

-

Calcium

mg/L

-

-

-

-

Chloride

mg/L

-

-

-

-

Conductivity

µs/cm

-

-

-

-

Lead

mg/L

Quarterly

-

-

-

-

8

Magnesium

mg/L

-

-

-

-

Nitrate

mg/L

(P1)

-

-

-

-

Potassium

mg/L

-

-

-

-

Sodium

mg/L

-

-

-

-

Standing

m

-

-

-

-

Water Level

Sulphate

mg/L

-

-

-

-

pH

pH

-

-

-

-

Ammonia

mg/L

Quarterly

-

-

-

-

9

Bicarbonate

mg/L

0

-

-

-

-

Calcium

mg/L

(P2)

-

-

-

-

Chloride

mg/L

-

-

-

-

2

WHITEHAVEN CHPP - MONTHLY MONITORING SUMMARY

EPL

Pollutant

Units of

Monitoring

No. of

Date

Date

Min

Mean

Median Value

Max or Only

Samples for

ID

Measure

Frequency

Sampled

Obtained

Value

Value

Value

the Period

Conductivity

µs/cm

-

-

-

-

Lead

mg/L

-

-

-

-

Magnesium

mg/L

-

-

-

-

Nitrate

mg/L

-

-

-

-

Potassium

mg/L

-

-

-

-

Sodium

mg/L

-

-

-

-

Standing

M

-

-

-

-

Water Level

Sulphate

mg/L

-

-

-

-

pH

pH

-

-

-

-

Ammonia

mg/L

-

-

-

-

Bicarbonate

mg/L

0

-

-

-

-

Calcium

mg/L

-

-

-

-

Chloride

mg/L

-

-

-

-

Conductivity

µs/cm

-

-

-

-

Lead

mg/L

Quarterly

-

-

-

-

10

Magnesium

mg/L

-

-

-

-

Nitrate

mg/L

(P3)

-

-

-

-

Potassium

mg/L

-

-

-

-

Sodium

mg/L

-

-

-

-

Standing

M

-

-

-

-

Water Level

Sulphate

mg/L

-

-

-

-

pH

pH

-

-

-

-

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

-

15 mins day

-

35

N1

-

15 mins evening

-

35

15 mins night

-

35

1 min night

-

45

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

5

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Disclaimer

Whitehaven Coal Limited published this content on 19 March 2024 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 20 March 2024 06:39:02 UTC.