FEIR for Boitshepi Landfill Site .pdf - Zitholele.co.za

124August 2010 884811.3.2 TopographyWaste disposal site operations continue until all the available permitted airspace has beenfilled. Once this happens, the site is closed and capped with a layer of impermeable clay anda layer of top soil. Grass and other suitable vegetation types are planted to stabilise the soiland improve the appearance.Initial ImpactThe initial impact to topography will remain a HIGH impact, and will be occurring in the studyarea and will be permanent. This impact is rated as a High impact.Additional ImpactThe study site is within a residential area; therefore the waste body will be shaped to suit thelocal topography of the study area and the site will be rehabilitated so that grass and anyother flora will vegetate on the waste body capping layer. The additional impact totopography is of LOW positive significance and is therefore rated as Low positive impactthat will definitely occur in the study area.Cumulative ImpactThe cumulative impact during the decommissioning phase remains as assessed above sincethe additional impact and the initial impact occur in the same area. Therefore the impactremains as High impact.Mitigation MeasuresThe mitigation measures remain as assessed in Section 11.1.2 for all three alternatives,however the closure and capping are mitigation measures.Residual ImpactThe residual impact remains as assessed in the additional section.Table 45: Impact Rating Matrix for topography during the decommissioning phase(Alternative 1-3).Type of Significance Spatial Temporal Probability RatingImpactInitial HIGH Study site Permanent Will occur 4-HighAdditional VERY LOWIsolatedsitesPermanent Very Likely 1.9- Low positiveCumulative HIGH Study site Permanent Will occur 4-HighResidual VERY LOWIsolatedsitesPermanent Very Likely 1.9- Low positiveZITHOLELE CONSULTING