Executive Summary
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MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED EXECUTIVE SUMMARY INTRODUCTION M/s Hindustan Copper Limited (HCL), a Govt of India (GOI) undertaking is a Public Sector established in the year 1967 with the objective of systematic mining and planned development of copper ore mineral resources in India. M/s Hindustan Copper Limited is seeking an Environmental Clearance for their proposed expansion of mine capacity from 2 MTPA to 5 MTPA by underground mining. M/s.HCL have been granted the mining lease (No. I & II) over an extent of 479.9 ha in Malajkhand in Balaghat District of Madhya Pradesh state. The lease period granted has expired in the year 1993 and renewal of lease has been obtained for the period of 20 years, till date 26/8/2013. At present the company is extracting 2,000,000 metric tonnes (MT) of copper ore per annum. Over the years company has developed an expertise in the mining field. It has range of technical experts in the mining field and financial strength to undertake the project. For the financial year 2010 -2011 company’s turnover is about Rs. 1300 crores. Malanjkhand Copper Project (MCP) is developed as a largest open pit base metal mine in India which is one of the biggest copper ore supplying mine in the country. HCL assigned the work to study optimum exploitation of Malanjkhand deposit to M/s BISHIMETAL EXPLORATION COMPANY, Tokyo, Japan, who explored the geological reserves upto a depth of 600m. Based on the recommendations given by BISHIMETAL EXPLORATION COMPANY underground mining will be economical below 412 mRL. However, the pit was redesigned to a depth of 340 m RL following the study carried out by SRK Consultants UK. In order to meet the increased demand for copper products in the national and international markets, M/s HCL planned to expand mine capacity from 2 to 5 MTPA by adopting most economic route. Since opencast was viable upto 340 m RL, it was planned to expand capacity by underground mining method. M/s HCL desired to enhance in production and beneficiation and other facilities. Further, it is proposed to extend its operations in an area of 725.35 Ha adding an additional area of 248.50Ha for the proposed expansion project. In view of Environmental study for the said ML area monitoring was carried out during winter season 2010-2011 (December - February) as per the guidelines laid by Ministry of Environment & Forests (MoEF) & Central Pollution Control Board (CPCB). SENES / D - 20339 MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED PROJECT DESCRIPTION Location Malanjkhand Copper Ore Mines falls on the survey of India in topo sheet No. 64 B/12. The area lies within the Birsa & Damoh forest division, Baihar taluk, Balaghat District, Madhya Pradesh. Salient features of the existing & proposed activities. S.No. Particulars Existing Proposed 1 Geological Reserves in MT 195 158 2 Mineable Reserves in MTA 13.7 142 3 Method of Mining Mechanized Opencast Under Ground 6 Production in MTA 2.0 5.0 7 Development in MTA 5.9 5.90 8 Total Handling MTA 4.46 11.9 9 Stripping ratio 1:5.9 Not applicable 10 Cost of the Project in crores --- 2021.35 11 Water Requirement in m 3/day 16543 490 90 12 Life of the mine in years Upto 2014 25 The existing mining machinery for operation of opencast mine is given in table below. Existing Machinery for Opencast Mining Existing Machineries Nos. Shovel, HEC, 4.6m 3, 250KW 1 SENES / D - 20339 MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED Shovel, P&H, 9.2 m 3, 600HP 3 3 Hydr aulic Excavator, PC -1000, 5m , 2 542HP Dumpers 85 T , Capacity , 900HP 9 50T,Capacity, 635HP 7 100T, Capacity, 1025HP 5 Electrical Drills, 6 1/2 ”, 500HP 3 Dozer D355A, 410HP 10 Wheel Dozer,33HP 02 The proposed mining machinery for proposed underground mine is given below, Proposed Mining Machinery for Underground Proposed Nos mine working Development Jumbo for both main & stope 6 Development Loader both diesel& electrical 5 Explosive Charger 2 Rock Bolter – Stope 2 Blast Hole Drill – bot h manual & automated 4 Cable bolter 2 Raise Borer 2 SENES / D - 20339 MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED Production LHD - Diesel 8 Impact Rock Breaker 8 Service Vehicles 13 Haul trucks for production & Development 13 Haul truck production (Electrical & Diesel) 4 Haul truck development 2 Grader 2 Crusher/ feeders 4 Skip Loading/ Ore Hoisting 2 Underground Conveyors 4 Main Pumps – automatic 12 Production Programme: Opencast Under Ground Million Tonnes /Per Annum Million Tonnes /Per Annum S.No Year Shaft Production Development Production Decline 1 2011-12 2.0 6.0 -- -- 2 2012-13 2.0 4.7 -- -- 3 2013-14 2.0 4.2 -- -- 4 2014-15 2.0 1.2 0.02 -- 5 2015-16 2.0 1.00 0.08 1000 6 2016-17 2.00 1.00 2.5 1500 7 2017-18 1.7 0.74 3.5 1500 8 2018-19 -- -- 4.5 610 SENES / D - 20339 MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED DESCRSIPTION OF ENVIRONMENT Environmental Baseline Data collection was carried out during winter 2010-2011 i.e. from December 2010 to February 2011. Description Max Min Temperature ( oC) 30.6 0.4 Relative Humidity, (%) 98 18 Wind Speed, km /hr 6 Calm Predominant Wind North Wes t Direction AMBIENT AIR QUALITY Ambient Air quality was monitored at 13 locations, 2 in Core zone and 11 in buffer zone area. Its results are given below. S. Predicted Resultant Location of Monitoring Station Background No. Concentration, concentration, Level (PM 10 ), 3 Station Distance Direction 100 µg/Nm µg/Nm 3 µg/Nm 3 1 Township (Nr. 3.5 N VIP Guest 65 12 77 House) 2 0.7 W Mines Office 81 12 83 3 Mines Control 0.4 E 91 12 103 Room 4 Bistwahi 8.5 N 63 4 67 Village 5 Bhimjori 2.5 NE 60 4 64 Village SENES / D - 20339 MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED 6 `6.5 E Sakha Village 68 4 72 Chinditola 3.5 SW 78 4 82 7 Village Borkhera 3.1 SE 85 4 89 8 Village 9 Bhurruk 7.0 SW 72 4 76 Village 3.0 SE 10 Birsa Village 88 4 92 11 Karamsara 2.0 NW 94 4 98 Village 3.5 NW 12 Pauni Village 93 4 97 3.5 SW 13 Suji Village 76 4 80 Monitored data shows that ambient air quality results obtained are well within the prescribed limits of National Ambient Air Quality Standards. Prediction levels for the proposed activities also within the prescribed limits except at the Mines Control room. Mitigation measures are proposed to reduce particulate matter levels. Protective measures: Transport vehicles are being maintained regularly. Regular road maintenance is carried out Regular water sprinkling is being carried out using 3 tankers on haul road and other dusty areas to arrest air borne dust generation. Vehicles speed is regulated. Regular training programmes on SHE are conducted to mine workers/employees Greenbelt development / Afforestation SENES / D - 20339 MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED AMBIENT NOISE LEVELS Ambient Noise Levels were monitored at 13 locations, 2 in Core zone and 11 in buffer zone area.Monitored data shows that the ambient noise levels are within the prescribed limits. Noise level at boundary will be around 42 dB (A). Mitigative Measures: Crushing & screening plants shall be enclosed with appropriate acoustic enclosures and providing enclosures at drop operations. Mining machinery and transportation vehicles shall be maintained in good condition. Roads are maintained regularly to avoid noise due to break, wear and tear. Thick plantation shall be carried out all along the roads, crusher and mine boundary. Ear muffs/plugs shall be provided to the workers exposed to the high noise levels. WATER QUALITY Two surface water samples (Banjar River and Karamsara Tank) and eight ground water samples were collected to assess the water quality in the study area. Ground Water Quality Sample code pH TH mg/l TDS mg/l Cl mg/l F mg/l SO 4 mg/l 7.17 102 398 27 0.65 15.2 GW1 7.28 124 501 37 0.72 21.2 GW2 7.05 120 492 33 0.6 6 16.0 GW3 7.10 118 475 29 0.74 18.2 GW4 7.02 108 440 28 0.72 17.0 GW5 7.19 172 463 31 0.65 19.0 GW6 7.01 110 428 26 0.59 15.2 GW7 7.12 172 433 24 0.65 17.8 GW8 ISO:10500 6.5-8.5 300 500 250 0.6-1.2 150 Standards SENES / D - 20339 MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED Heavy metal concentrations in all sampl es are within in the prescribed limits. Summary of Surface water Quality Oil & E.Coli TSS TDS BOD DO Sample code pH Grease mg/l mg/l mg/l mg/l (MPN) 6.9 22 344 3.6 6. 4 - 11 SW1 6.7 35 298 4.5 5.7 1.0 23 SW2 IS:2296 5.5-9.0 100 2100 30.0 4.0 10.0 500 standards The water quality of surface water is within the permissible limits of surface water quality standards of IS 2296. The ground water quality is in compliance within the permissible drinking water standards of IS 10500. Water Requirement for Proposed Expansion Project: a. Water requirement for proposed underground mine: S.No Area/ Equipment Consumption, m3/day 1 Development 36 2 Rock Bolting 20 3 Production Drilling 35 4 Raise Borer 135 5 Cable Bolting 35 6 Wash down& dust control 30 8 Con struction & Road maintenance 15 SENES / D - 20339 MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED 9 Workshops 10 10 Potable water 16 11 Contingency @20% 66.4 Total 398.4 b.