Part 2 - Eskom

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ENVIRONMENTAL SCOPING REPORT FOR THE PROPOSED 40MW OPEN CYCLE GAS TURBINE POWER PLANT IN THE AMERSFOORT AREA, MPUMALANGA Bohlweki-SSI Environmental ISSUE AREA OF POTENTIAL IMPACT RECOMMENDATIONS undertaken for the study area will completed in the EIA phase. Hydrology The potential impacts on hydrology include: • possible flooding; • possible pollution from station activities; • increased runoff from disturbed areas and infrastructure; • generation and transport of domestic and industrial waste; • water supply demands of environment and other water; • The volume of groundwater lost during the mining process (in terms of a water use); • The likely chemistry of the water [void] post mining as it may be contentious to assume it can be leached until equivalent to the pre-mining water quality. • The possible impacts associated with ground/overburden collapse should this occur, both in terms of yield impacts and future decant points, time to decant and quality of decant. Possible post mining water treatment may need to be considered and budgeted for. • If the surface is to contain waste (liquid or solid) during or post mining through related activities, then detail on water management of these structures will be required. A peer review of the hydrology study undertaken for selected farms in the study area will be completed in the EIA phase. Furthermore a water monitoring grid has been established around the Majuba Power Station and a hydrological model will be studied in the EIA phase. E02.JNB.000308 ESKOM HOLDINGS LIMITED 01 98 08/10/2009
ENVIRONMENTAL SCOPING REPORT FOR THE PROPOSED 40MW OPEN CYCLE GAS TURBINE POWER PLANT IN THE AMERSFOORT AREA, MPUMALANGA ISSUE AREA OF POTENTIAL IMPACT RECOMMENDATIONS Wetlands • If associated infrastructure is located within a wetland, then the assumption has been made that the wetland is likely to be completely transformed, resulting in the complete loss of wetland habitat as well as functionality of the affected part of the wetland (and possibly the functionality of the downstream portion of the wetland). • Construction-related impacts: ־ General construction related impacts. ־ Impacts related to mining areas. ־ Impacts related to pipelines. ־ Impacts related to access roads. ־ Impacts related to power lines. • Operation-related impacts: ־ Impacts related to mining areas. ־ Impacts related to pipelines. ־ Impacts related to access roads. ־ Impacts associated with polluted runoff water. ־ Water treatment infrastructure. ־ Impacts related to power lines • Decommissioning impacts: ־ The potential impacts on wetlands related to the decommissioning of the plant and proposed infrastructure are similar in many aspects to construction-related impacts, if infrastructure such as buildings is physically removed. • Post-closure impacts: ־ Potential post-closure impacts would equate to Bohlweki-SSI Environmental More detail regarding the layout of the proposed plant is required to be provided for further, more detailed assessment and identification of potential impacts associated with the proposed plant and required mitigation measures in the EIA phase. If alignments of proposed linear infrastructure are provided for assessment, these could be able to be assessed in terms of their potential impact upon wetlands, and any design or re-alignment considerations that will need to be considered in order to mitigate or reduce the impact. A detailed on-site delineation and assessment of the wetlands occurring in certain parts of the study site where verification of wetland/hydromorphic soil existence is required will need to be undertaken as part of the EIA studies. E02.JNB.000308 ESKOM HOLDINGS LIMITED 01 99 08/10/2009
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