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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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on the site to erosion and compaction. This will have a negative effect on the terrestrial ecosystems and<br />

wetlands in that siltation and habitat fragmentation could occur.<br />

Significance<br />

It should however be noted again that a large proportion of the site is currently cultivated and only a small<br />

percentage of natural habitat remains on site. The significance of this impact with mitigation measures is thus<br />

given as low.<br />

Mitigation:<br />

• Cordon off the sensitive vegetation (hydrophilic and primary grassland) to restrict the movement of<br />

construction vehicles and construction personnel.<br />

• Construction areas should be inspected for any occurrence of erosion. Appropriate remedial action<br />

(rehabilitation) must be undertaken should any eroded areas be identified.<br />

• Areas designated as sensitive should be incorporated into an open space system which must be<br />

managed in accordance with an Environmental Management Plan.<br />

• A comprehensive surface runoff and storm water management plan should be compiled, indicating how<br />

all surface runoff generated as a result of the development (during both the construction and operational<br />

phases) will be managed.<br />

• No development should take place within any area demarcated as sensitive.<br />

13.3.3 Destruction of faunal habitat and faunal displacement<br />

Table 27: Destruction of natural habitat and displacement of species<br />

Activity Construction and operational activities<br />

Nature of the<br />

Destruction of faunal habitat faunal displacement Status -<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 />

Usutu Site<br />

Extent (footprint; site; regional; national; international) SITE<br />

Intensity (low; medium; high) MEDIUM<br />

Duration (short; short-med; medium; long; permanent) PERMANENT<br />

Probability (Improbable; possible; likely; highly likely; definite) LIKELY<br />

WF (low; low-medium; medium; medium-high; high) LOW MEDIUM<br />

ME (high; medium-high; medium; low-medium; low) LOW MEDIUM<br />

Without<br />

mitigation<br />

(WOM)<br />

With<br />

mitigation<br />

(WM)<br />

LOW<br />

Source of the impact<br />

(Extent + Intensity + Duration + Probability) x Weighting Factor<br />

(2 + 3+ 5+ 3) x 2 = 26<br />

Low to Medium<br />

WOM x ME = WM<br />

26 x 0.4 = 10.4<br />

Low<br />

133

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