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MINING AND INDUSTRIALISATION UPDATE, ORISSA - Vasundhara

MINING AND INDUSTRIALISATION UPDATE, ORISSA - Vasundhara

MINING AND INDUSTRIALISATION UPDATE, ORISSA - Vasundhara

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(iii)(iv)(v)(vi)(vii)The mining operations shall be restricted to 2m above the reported water table i.e.672m RL and it should not intersect groundwater table...3/-In case of working below ground water table, prior approval of the Ministry ofEnvironment and Forests and Central Ground Water Authority shall be obtained,for which a detailed hydro-geological study shall be carried out.The project proponent shall ensure that no natural watercourse and/or waterresources shall be obstructed due to any mining operations.The top soil, if any, shall temporarily be stored at earmarked site(s) only and itshould not be kept unutilized for a period more than 3years. The topsoil shall beused for land reclamation and plantation.The over burden (OB) generated during the mining operation shall be stacked atearmarked dump site(s) only and should not be kept active for long period oftime. Proper terracing of OB dump shall be carried out so that the overall slopeshall not exceed 28 degree. Out of the total 21,44,567m 3 of waste to be generatedduring the mine life, 8,17,002m 3 shall be disposed off in the form of externaldump and 13,27,565m 3 shall be backfilled in 7ha of mined out area. Thebackfilled area shall be afforested. The over burden dumps shall be scientificallyvegetated with suitable native species to prevent erosion and surface run off. Incritical areas, use of geo textiles shall be undertaken for stabilization of thedumps. Monitoring and management of rehabilitated areas should continue untilthe vegetation becomes self-sustaining. Compliance status should be submitted tothe Ministry of Environment & Forests and its Regional Office located atBhubaneswar on six monthly basis.Catch drains and siltation ponds of appropriate size shall be constructed aroundthe working pit(s), mineral and OB dumps to prevent run off of water and flow ofsediments directly into the Suna Nallah, Karo nallah, rivers and water bodies. Thewater so collected should be utilized for watering the mine area, roads, green beltdevelopment etc. The drains should be regularly desilted particularly aftermonsoon and maintained properly.Garland drains, settling tanks and check dams of appropriate size, gradientand length shall be constructed both around the mine pit and temporary overburden dumps to prevent run off of water and flow of sediments directly into theSuna Nallah, Karo nallah, rivers and water bodies and sump capacity should bedesigned keeping 50% safety margin over and above peak sudden rainfall (basedon 50 years data) and maximum discharge in the area adjoining the mine site.Sump capacity should also provide adequate retention period to allow propersettling of silt material. Sedimentation pits should be constructed at the corners ofthe garland drains and desilted at regular intervals...4/-61

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