Of KULTI & SITARAMPUR COAL BLOCKS COMBINED
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EXECUTIVE SUMMARY Of INTEGRATED ENVIRONMENTAL IMPACT ASSESSMENT AND ENVIRONMENT MANAGEMENT PLAN Of KULTI & SITARAMPUR COAL BLOCKS COMBINED Mauzas Lachmanpur, Rampur, Chalbalpur, Dedi, Bhanrra, Badirchak, Mahutdi, Shipur, Kuldi, Namgarara, Gangutia, Sodepur, Niamatpur, Jasaidi, Kulti, Punuri and Kultora under Police station Kulti, Taluka Asansol, District Bardhaman, West Bengal {Applied lease area 767.16 ha (Kulti) + 834.96 ha (Sitarampur) = 1602.12 ha (Combined Lease Area), Integrated Capacity 1+1=2 MTPA by Underground method} of M/S West Bengal Mineral Development and Trading Corporation Limited Prepared by: KALYANI LABORATORIES PVT. LTD. Corporate office: Plot No. 1867, Bomikhal, Bhubaneswar-751010, Odisha Telefax : 0674-2585026 e-mail : [email protected] EIA/EMP for Kulti and Sitarampur Coal Blocks Combined of M/s WBMDTC Ltd. 2012 EXECUTIVE SUMMARY OF EIA/EMP 1 INTRODUCTION 1.1 General background Kulti and Sitarampur Coal Blocks located in the western part of Raniganj Coalfield covering an area of 767.16 ha and 834.96 ha have been allotted to West Bengal Mineral Development & Trading Corporation Limited vide letter No. 13016/23/2006-CA-I dated 2nd August 2006 and 13016/23/2006-CA-I dated 27th December, 2007, respectively by Ministry of Coal. Rated capacity of each block will be 1 million tonne per annum (MTPA) of coal production by underground method. For both the coal blocks, coal will be taken out from a common mine opening, located in Sitarampur Coal Block. The life of the mine of Kulti block will be 69 years and that of Sitarampur coal block will be 72 years. The total cost of both the project will be Rs. 1440.00 Crore approximately. 1.2 Location and communication Kulti block is present in mouzas Badirchak, Mahutdi, Shipur, Kuldi, Namgarara, Gangutia, Sodepur, Niamatpur, Jasaidi, Kulti, Punuri and Kultora under Kulti police station and Sitarampur coal block is present in mouzas Lachmanpur, Rampur, Chalbalpur, Dedi, Kultora, Punuri, Badirchak, Kulti and Bhanrra under Kulti police station of Taluka Asansol in Bardhaman district of West Bengal. The areas are covered under Survey of India Topo sheet No. 73 I/13 & 14. The co-ordinates of the Kulti block are Latitude N23°42'18" to N23°44'02" & Longitude E86°49'48" to E86°52'14" and that of Sitarampur block are Latitude N23°43’21” to N23°45’24” and Longitude E86°51’15” to E86°53’22”. The location plan is given in Figure 1. The Kulti and Sitarampur coal blocks are situated at a distance of 14 Km and 12 Km, respectively west of Asansol. The District Head quarter Bardhaman is at a distance of 120 Km to the east. The nearest railway station Kulti and Sitarampur are located at about 1.0 km from the respective blocks in northern and eastern sides, respectively. Howrah-Delhi Grand Chord Line passes through the middle of Sitarampur block and is 1.0 km from Kulti block. The nearest airport is Kolkata Netaji Subhas Chandra Bose International Airport at a distance of 250 km E from the blocks. 2 PROJECT DESCRIPTION 2.1 Geology The Raniganj Coalfield occupies an area of 1550 sq km. and typically exposes a complete succession of Lower Gondwana sediments, the major part of which falls in the Bardhaman district of West Bengal. The formations encountered in different boreholes in Kulti and Sitarampur Coal blocks include Barakar, Barren Measure, Raniganj. 1 EIA/EMP for Kulti and Sitarampur Coal Blocks Combined of M/s WBMDTC Ltd. ofM/sWBMDTC Combined CoalBlocks andSitarampur EIA/EMP forKulti 2012 2 Location map of Kulti and Sitarampur Coal Blocks Figure - 1 EIA/EMP for Kulti and Sitarampur Coal Blocks Combined of M/s WBMDTC Ltd. 2012 A total 12 and 14 numbers of faults have been interpreted in the Kulti and Sitarampur blocks, respectively. 2.2 Reserve estimation Total of 478.2296 million tonne (MT) (in Kulti block- 269.19 MT and in Sitarampur block- 209.0396 MT) have been proved within the block, Mineable reserves in the block (>1.2 m) excluding all barriers (faults, boundary, village, railways , roads) are 304.260 MT ( in Kulti – 203.770 MT and in Sitarampur – 100.490 MT). Total extractable reserves are 132.0198MT (in Kulti – 64.6695 MT and in Sitarampur – 67.3503 MT). Medium grade coking coal of Steel grade I to Washery grade – IV and in some places non coking grade coal is also found in these blocks. 2.3 Mining In Kulti and Sitarampur Coal blocks the seams are deep seated and mining by opencast method is not viable. Hence underground mining has been proposed. The underground mining is proposed with three vertical shafts to reach the coal seams. Out of these shafts two will be used as intake shafts and third shaft will be used as return air shaft. Road headers/ continuous miner will be used for drivages. Longwall method is proposed to be used as depths of most of the seams are over 300m. Bord and Pillar will be used wherever formation of longwall panel is not possible. Kulti and Sitarampur are having common boundary and are proposed to be mined as one mine and accordingly, the entries to the mine workings of both the blocks have been proposed as common, which will be located in adjoining Sitarampur block. Ventilation arrangement will be common for both. 2.4 Transportation The coal produced from both the blocks will be handled from both sides with a system of conveyors up to skip loading point. Through skip coal will be raised from underground to surface and through belt conveyor it will fed to the CHP installed within the mine premises. From CHP coal will be transported to railway siding at Bejdih near Radhanagar station in SE Railways, through 5 km long pipe conveyor. It will be further transported to destination by rail. 2.5 Blasting Blasting will be required for sinking of the shafts as well as for driving of the drifts for crossing the faults and for reaching from one seam to another. 2.6 Mine drainage Pumping will be done through caged borehole from the main sump located near the shaft bottom. Water from different places of the mine will be pumped out and the water will be collected at main sump. Apart from that if needed, the water from the goaved out upper coal seam will be collected by drilling boreholes from the working seam and then water will be discharged to surface from the working seam / main sump. 3 EIA/EMP for Kulti and Sitarampur Coal Blocks Combined of M/s WBMDTC Ltd. 2012 2.7 Site services It is imperative to develop core infrastructure like power, road, telecommunication, housing, service buildings like office, store, first aid centre, canteen, workshop, etc. for a large number of employees within the premises of proposed mine complex. The residential colony is proposed to be located else where. An underground 30 KL diesel storage and on surface 5 tonne capacity magazine will be established. The mine will operate with 3 shifts of 8 hours each day for 330 days per year. Total requirement of water for mining and allied activities will be 1331 cum/day for Kulti and Sitarampur. Of this 272 cum/day will be for drinking and 1059 cum/day for industrial use. The entire requirement will be met from borewell in the initial stage and later it will be met from water pumped to surface from mine sump. Drinking water will be drawn solely from deep bore wells. The required 25 MVA power supply will be drawn by a 10 Km long overhead transmission line drawn from Asansol (220/132/33 KV) Sub-station of WBSEDCL. For emergency purpose, 2 Nos. of DG sets each of capacity 2500 KVA shall be provided for ventilation and pumping purpose. The total manpower requirement will be about 811 persons. 3 PRESENT ENVIRONMENTAL SCENARIO 3.1 Topography and drainage Core zone: Coal Blocks have a gently undulating topography with general slope towards west and south. The surface elevation varies from 113 to 151 m above mean sea level (AMSL) in Kulti block and 123 to 159 m AMSL in Sitarampur block. Both the blocks occupy part of Barakar (Damodar) River watershed and lie downstream of Maithon reservoir constructed on Barakar River. The small eastern portion of Sitarampur block lies in the Ajay river water shed. The river Barakar is the perennial river and it is the sustainable source of water for the industrial units in the area. Both blocks are drained by local nalla and the streamlets. The streamlets are mostly 1st and 2nd orders of seasonal streams originating from the blocks. There are several water bodies and rain fed ponds in the mine leases amounting to approximately 60 in Kulti and 95 in Sitarampur as per patta plan. Buffer zone: The surface elevation varies from a minimum 100 m along the Barakar/ Damodar river in the western and south western part to maximum 140 m above MSL in the north and north eastern part. Along the Maithon Reservoir are hills rising upto 200 m AMSL. The average regional slope of the northern part of the study area is towards south and south west while that of the southern part is towards north. These first order streams join higher order streams outside the block and eventually join the Barakar and Damodar rivers or its tributaries in the west and south and the balance go to Ajay river in the north west side. The study area has an intricate network of drainage showing dendritic pattern. There are large numbers of ponds in the area in which water stays till the end of winter season.