FEIR for Boitshepi Landfill Site .pdf - Zitholele.co.za
FEIR for Boitshepi Landfill Site .pdf - Zitholele.co.za
FEIR for Boitshepi Landfill Site .pdf - Zitholele.co.za
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89August 2010 8848Type ofImpactCumulativeResidualAlternative Significance Spatial Temporal Probability Rating31-31-3LOWMODERATEMODERATEIsolatedsitesStudysiteStudysitePermanent Very Likely 1.9 - LowPermanent Will occur 3.3- HighPermanent Will occur 3.3- High11.1.3 GroundwaterGroundwater Consulting Services (GCS) (1996) identified deep and shallow aquifersseparated by a less permeable clay layer. This was <strong>co</strong>nfirmed by EnviroXcellence (2008)during the drilling of boreholes BH1, BH2 and BH3.Ac<strong>co</strong>rding to GCS (1996) report, boreholes BH2, BH3 and BH4 are probably <strong>co</strong>vered by thewaste body. Borehole BH3 is reported as BH1 in the GCS report. However; <strong>for</strong> currentreporting, by the GAA specialist the numbering observed onsite as reported byEnviroXcellence is used.Shallow aquiferThis is a perched aquifer (at depth between 0 and 10m) reported to be present in boreholesBH1, BH2, B4a and B4b drilled in the south of the waste disposal site . This aquifer was notobserved in borehole BH3, drilled in the north of the waste site. The re<strong>co</strong>rded blow out yieldof 0.1l/s was <strong>co</strong>nsidered insufficient <strong>for</strong> test pumping by EnviroXcellence, 2008. Ac<strong>co</strong>rding tothe GCS (1996) report, the shallow boreholes reported as BH1a, BH2a, BH3a and BH4a(