NKOMATI ANTHRACITE (PTY) LIMITED - Sentula Mining

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Environmental Impact Assessment Report: Nkomati Anthracite (Pty) Limited, Madadeni Opencast Mining Project Page 62 The opencast mining will result in the removal of the topsoil layer, which may result in the loss of vegetation cover. Loss of animal burrows /microhabitats and migration of animals may occur due to disruption of the soil profile and vegetation cover. There is a risk that mining contractor employees working in the area will result in trapping of wild animals that may still be present on site and surrounding areas. Formation of a void during mining will result in loss of MAR within the Komati River sub catchment, which will result in the loss of catchment yield. Runoff from the upslope area may enter the rehabilitated opencast workings giving rise to an increased siltation. The silted water will enter the Komati River affecting its water quality. Water captured within the opencast pits may have low pH, contain elevated salt, ion and metal concentrations, which may impact detrimentally on the environment if allowed to enter the natural environment. NKOMATI ANTHRACITE (PTY) LIMITED COMPILED BY GEOVICON ENVIRONMENTAL (PTY) LTD S M M S M S H M M H H M L M M M L M Mining must be undertaken concurrently with rehabilitation, with the mined out area rehabilitated and revegetated with plant species recommended by a specialist. No mitigation will be undertaken. Note however that fauna will naturally recolonise unmined and rehabilitated areas. Educate employees on the impacts of trapping endangered species during the mines environmental awareness plan implementation. Ensure that the operational opencast pits cover as little space as possible during mining. This will reduce the loss of runoff to the catchment. Construct contours to reduce the velocity of runoff storm water and establish vegetation as soon as possible after completion of the soil placement and profiling. All dirty water captured in the opencast pits will as soon as possible be pumped into the pollution control dam (reconstructed to DWEA approved design specifications). Mining costs N/A R 30 000 Mining costs R 250 000 R 2 400 000
Environmental Impact Assessment Report: Nkomati Anthracite (Pty) Limited, Madadeni Opencast Mining Project Page 63 Under extreme flood conditions the storm water may enter the opencast pits resulting in the injury or loss of life to personnel working in the pits, damage to equipment and in the contamination of the clean storm water. During the operational phase, it is expected that the main impact on the groundwater quantity will be dewatering of the surrounding aquifer and loss of groundwater contribution to catchment base flow. Carbonaceous material remaining from the removal of run of mine coal may cause acid mine drainage post mining of the mining area. NKOMATI ANTHRACITE (PTY) LIMITED COMPILED BY GEOVICON ENVIRONMENTAL (PTY) LTD M M M M H H M L M All storm water runoff during flood events will be diverted away from the opencast areas. Surrounding boreholes i.e. monitoring and boreholes used by residents must be monitored on a quarterly basis. This will determine the extent of the dewatering cone from the mining workings and any user affected by the mining related dewatering will be compensated by the mine. Reduce the exposure of the carbonaceous material to free oxygen. This will be achieved by placing the carbonaceous material at the bottom of the opencast pits and backfill as fast as possible. . R 2 000 000 R 100 000 Mining cost
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NKOMATI ANTHRACITE (PTY) LIMITED - Sentula Mining

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