APPENDIX I: Noise Monitoring Data - Xstrata Coal Mangoola

MANGOOLA COAL QUARTER 3, 2012 MONITORING DATA
Location Measurement Date Start Measured
Time period Levels (XMC)
LAeq dB
Limits Weather Observations (Potential) noncompliance/breach
3/8, Wind
speed at 10 m:
0.4 m/s, VTG:
3 degrees
Celsius per 100
m
throughout the measurement. Track noise, impact
noise, transmission noise, reverse alarms, horns and a
two toned alarm were also audible. These sources
resulted in a Mangoola Coal only LAeq of 25 dB. A
surge in the continuum generated the Mangoola Coal
only LA1,1min of 32 dB.
Mangoola Coal was largely responsible for the
measured levels. Dogs contributed to the measured
LA1.
Frogs, birds and road traffic tyre noise were also
noted.
A5 11 Jul 2012 2224 15 minutes 32 37
Cloud cover:
7/8, Wind
speed at 10 m:
0.7 m/s, VTG:
-1 degrees
Celsius per 100
m
Continuum from Mangoola Coal was audible
throughout the measurement. Track noise and
impact noises were also audible. These sources
resulted in a Mangoola Coal only LAeq of 32 dB.
Impact noise generated the Mangoola Coal only
LA1,1min of 36 dB.
Mangoola Coal was largely responsible for the
measured levels. Dogs contributed to the measured
LA1.
Other mining continuum, insects, bats and road
traffic tyre noise were also noted.
Nil
12324_R01.doc
Page D.5