APPENDIX I: Noise Monitoring Data - Xstrata Coal Mangoola

Table 4.4 compares measured levels with impact assessment criteria.
Criteria are then
applied if weather conditions are in accordance with the project approval. Discussion as to
the noise sources responsible for these measured levels is provided in Section 5 of this report.
Table 4.4 L A1(1 min) GENERATED BY MANGOOLA COAL AGAINST IMPACT ASSESSMENT CRITERIA - QUARTER 3 2012
Location Date And Time Wind
Spd
(m/s) 1
VTG
( o /C per
100m) 1
L A1(1min)
Criterion
dB
Criterion
Applies? 2,3
XMC
L A1
(1min)
dB 4, 5, 6
Exceedance 7
A1 – Castlerock Rd 05/07/2012 23:34 0.3 3.0 45 N 35 NA
A2 – Denman Rd 11/07/2012 23:24 1.2 3.0 45 N 40 NA
A3 – Bells Lane 11/07/2012 22:51 1.1 3.0 45 N 42 NA
A4 – Yarraman Rd 05/07/2012 22:29 0.4 3.0 45 N 32 NA
A5 – Roxburgh Rd 11/07/2012 22:24 0.7 -1.0 45 Y 36 Nil
Notes: 1. Wind speed and sigma theta data sourced from Mangoola Coal meteorological stations. Data from the nearest
met station to the monitoring location was used. Sigma theta data used to calculate Vertical Temperature
Gradient (VTG) in accordance with procedures detailed in the INP;
2. Noise emission limits apply for the following meteorological conditions:
• wind speeds of up to 3 m/s at 10 metres above ground level; or
• temperature inversion conditions of up to 3ºC/100m, and wind speeds of up to 2m/s at 10 metres above
ground level;
3. Y denotes Yes, N denotes No;
4. These are results for Mangoola Coal in the absence of all other noise sources;
5. NM denotes audible but not measurable, IA denotes inaudible;
6. Bolded results in red are those greater than the relevant criterion (if applicable); and
7. NA in exceedance column means atmospheric conditions outside conditions specified in project approval and so
criterion is not applicable.
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