Whitehaven Coal : 2024 04 GUN CHPP EPL Monitoring Data

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: April 2024

Obtained Date: 14th May 2024

Publication Date: 15th May 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	17/04/2024	13/05/2024	-	-	-	0.8
					05/04/2024	14/05/2024
11	PM10	µg/m3	Every 6 days	5	11/04/2024	3.5	15.2	18.7	26.4
	17/04/2024	(Last sampled
	Kendo				23/04/2024	received)
					29/04/2024
					05/04/2024	14/05/2024
12	PM10	µg/m3	Every 6 days	5	11/04/2024	3.8	6.2	5.6	9.8
	17/04/2024	(Last sampled
	Olive View				23/04/2024	received)
					29/04/2024
	Conductivity	µs/cm					-	-	-	-
	Oil and Grease	mg/L	Each overflow				-	-	-	-
6	Total Organic Carbon	mg/L	0			-	-	-	-
event	-	-
	Total Suspended Solids	mg/L		-	-	-	-
	pH	pH					-	-	-	-
	Conductivity	µs/cm					-	-	-	-
7	Oil and Grease	mg/L	Quarterly	0	-	-	-	-	-	-
	Total Organic Carbon	mg/L					-	-	-	-
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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					-	-	-	-
	Bicarbonate	mg/L					-	-	-	-
	Calcium	mg/L					-	-	-	-
	Chloride	mg/L					-	-	-	-
	Conductivity	µs/cm					-	-	-	-
	Lead	mg/L					-	-	-	-
8	Magnesium	mg/L	Quarterly	0	-	-	-	-	-	-
Nitrate	mg/L	(P1)	-	-	-	-
	Potassium	mg/L					-	-	-	-
	Sodium	mg/L					-	-	-	-
	Standing	m					-	-	-	-
	Water Level
	Sulphate	mg/L					-	-	-	-
	pH	pH					-	-	-	-
	Ammonia	mg/L					-	-	-	-
9	Bicarbonate	mg/L	Quarterly	0	-	-	-	-	-	-
Calcium	mg/L	(P2)	-	-	-	-
	Chloride	mg/L					-	-	-	-

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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					-	-	-	-
	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					-	-	-	-
	Calcium	mg/L					-	-	-	-
	Chloride	mg/L					-	-	-	-
	Conductivity	µs/cm					-	-	-	-
	Lead	mg/L					-	-	-	-
10	Magnesium	mg/L	Quarterly	0	-	-	-	-	-	-
Nitrate	mg/L	(P3)	-	-	-	-
	Potassium	mg/L					-	-	-	-
	Sodium	mg/L					-	-	-	-
	Standing	M					-	-	-	-
	Water Level
	Sulphate	mg/L					-	-	-	-
	pH	pH					-	-	-	-

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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

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