APPENDIX I: Noise Monitoring Data - Xstrata Coal Mangoola

Table 4.7 MEASURED L Ceq,15 minute NOISE LEVELS AGAINST LOW FREQUENCY NOISE CRITERIA, BRONER METHOD - QUARTER 2
2012
Location
Date and Time
XMC
only
L Aeq dB 1
L ceq
(less than 250 Hz)
Criterion 2
L Ceq
(less than 250 Hz)
dB 3,4
Comments
Exceedance
A4 – Yarraman Rd 12/04/12 08:12 28 65 50 XMC and train 5 Nil
A4 – Yarraman Rd 03/04/12 22:25 30 60 50 XMC Nil
Notes: 1. Mangoola Coal only L Aeq provided as a guide;
2. Day and night L Ceq criterion as detailed in Broner (2010);
3. These are measured C-weighted noise levels (at frequencies less than 250 Hz) and are not always the result of activity
at Mangoola Coal. Guidance on this is provided in the Comments column;
4. Bolded results in red are those greater than the relevant criterion; and
5. Noise sources other than Mangoola Coal also contributed to low frequency levels in this measurement.
As there are no identified low frequency exceedences, no further discussion is required.
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