EIA-REP-325d-12 _BB_ - 201.09.14.pdf - SAHRA
EIA-REP-325d-12 _BB_ - 201.09.14.pdf - SAHRA
EIA-REP-325d-12 _BB_ - 201.09.14.pdf - SAHRA
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• All construction areas should be suitably top soiled and vegetated as soon as is possible after mining;<br />
• Disturbed surfaces to be rehabilitated must be ripped, and the area must be backfilled with topsoil or<br />
overburden.<br />
• Footprint size should be kept at a minimum so as to maintain as much natural vegetation cover as<br />
possible;<br />
• Only vegetation indigenous to the area should be considered for rehabilitation purposes; and<br />
• Wastewater limit values applicable to discharge of wastewater into watercourses as stipulated by the<br />
Department of Water Affairs and Forestry should be strictly adhered to.<br />
13.4 Noise<br />
13.4.1 Increased Noise and vibration<br />
Table 31: Assessment of the possible impacts on Noise and Vibration during the construction and operational<br />
phase<br />
Activity Noise generation on site during the construction and operational phase<br />
Nature of the<br />
impact<br />
Receiving<br />
environment<br />
Magnitude<br />
Weighting factor<br />
(WF)<br />
Mitigation<br />
Efficiency (ME)<br />
Significance<br />
Significance With<br />
Mitigation (WM)<br />
<strong>EIA</strong>-<strong>REP</strong>-<strong>325d</strong>-11<br />
October 20<strong>12</strong><br />
Blasting and construction activities which generate noise that<br />
exceeds the current ambient noise levels experienced over the<br />
site and surrounding areas<br />
Machine operators and workers, surrounding communities<br />
138<br />
Status -<br />
Extent (footprint; site; regional; national; international) REGIONAL<br />
Intensity (low; medium; high) LOW<br />
Duration (short; short-med; medium; long; permanent) LONG-TERM<br />
Probability (Improbable; possible; likely; highly likely; definite) HIGHLY LIKELY<br />
WF (low; low-medium; medium; medium-high; high) LOW MEDIUM<br />
ME (high; medium-high; medium; low-medium; low) MEDIUM HIGH<br />
Without<br />
mitigation<br />
(WOM)<br />
With<br />
mitigation<br />
(WM)<br />
LOW<br />
(Extent + Intensity + Duration + Probability) x Weighting Factor<br />
(3 + 1+ 4+ 4) x 2 = 24<br />
Low to Medium<br />
WOM x ME = WM<br />
24 x 0.4 = 9.6<br />
Low<br />
Source of the impact:<br />
Possible sources of disturbing noise of the Vunene Colliery (Pty) Ltd are listed in table 30. Of these sources,<br />
those with the greatest potential to be disturbing are:<br />
• Increase noise levels from vehicular traffic and other equipment associated with the construction of the<br />
proposed mine; and<br />
• Vibrations and noise associated with blasting.