November 2004 (PDF 11.6 MB) - Barrick Gold Corporation

‘The noise limits apply under all meteorologicalconditions except—during rain and wind speeds greater than3 m/s; and—from 6 pm to 7 am during intense inversions,which are indicated by cloud cover less than 40per cent and wind speeds less than 1.0 m/s.’Note: Wind data should be collected at 10 mheight.The latter point above excludes non-standardinversions (which are intense inversions—G-classinversions in this case), andis based on parameters specified in theTurner methodology for determining temperatureinversions (described in Appendix E).• For developments where G-class inversions(normally associated with arid areas such asBroken Hill and other flat inland areas) werefound to be a feature of the area (using theprocedure outlined in Section 5.2) thefollowing statement could accompany thenoise limits in the condition:‘The noise limits apply under all meteorologicalconditions except during rain and wind speedsgreater than 3 m/s.Note: Wind data should be collected at 10 mheight.G-class represents the upper limit of inversionconditions, and no more extreme conditionsare expected to occur.NSW industrial noise policy48