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. Domestic Use: The additional requirement for domestic use shall be 914 m 3/day. (For additional families 1261 @5 members in each family, 145 lit per head consumption)
c. Concentrate/ Beneficiation Plant: Additional water requirement for beneficiation/concentrate plant shall be 31235 m 3/day.
Existing Proposed water Total
Water use requirement (m 3/day)
(m 3/day) (m 3/day)
16543 49090.4 65633.4
Mitigative Measures :
• Drains shall be constructed to collect storm water and divert the same to the near by nullahs. • Dump seepage is diverted into garland and is collected in the reclaim pond for further usage of ore processing • Tailing dam seepage is diverted into garlands. Sumps and small ponds are provided all around the tailing dam to control seepage. • Relief wells are provided all around the tailing dam • Turfing and stone pitching is provided where ever required • Geo membrane (HDPE) is proposed all along garlands and sumps to control Acid Mine Drainage and contamination of land. • Phyto remediation was done and further it will be continued.
SENES / D - 20339
MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED
• Check dams will be constructed at various locations in the course of the nullahs and rain water harvesting Pits to store water. Thus stored water will help in recharging ground water. In addition to the above, separate ground Water Recharging Pits are also be proposed.
Existing LAND USE PATTERN
S.No Particulars Area in Ha 1 Mines Area 115.225 2 Storage for top soil 7.8 3 Over burden dump 120.23 4 Sub grade Mineral storage 6.37 5 Statutory Buildings 7.1 6 Road 0.05 8 Greenbelt 153.89 9 Mineral Separation Plant (Primary Crusher) 0.73 10 Leaching Plant 19.025 11 Water Treatment Plant 1.20 12 Training Centre 2.125 13 Raw water reservoir 0.625 14 Barren Land 45.53 Total 479.9
Proposed Land Use Pattern:
S.No Land use Category of Land Area
1 Mining Forest 122.60
2 Mining Forest 46.32
3 Tailing Pond, others Forest 556.43
Total 725. 35
SENES / D - 20339
MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED
Mitigative Measures:
Topsoil will be collected and stacked separately (temporarily) for plantation programme. Afforestation shall be continued with indigenous species in consultation with Forest Department officials and other experts, so as to maintain a good bio-diversity. Afforestation in backfilled areas shall be taken up to prevent soil erosion and consequent silting of local water streams. Land subsidence shall be monitored in scientifically, proper control measure shall be taken.
Mulching and conditioning of the soil shall be done to improve the nutrients in the degraded land. DEMOGRAPHIC DETAILS
Two towns and 134 villages were identified within 10 km radius of mine lease area in buffer zone. Main activity or occupation of the people in the study area is agriculture. 22131 numbers of the households depend on agriculture and allied activities. Rest of the households depend on business, service sector and non- agriculture activities. 61.3% of total population is male workers and 51.1% is female workers.
Total Total male Total female Total SC Total Households population ST
440032 215615 222417 15420 235742 91182
Environmental Budget
M/s HCL has allocated a total of Rupees 1948.95 lakhs for environmental protection measures. The break up of this amount is projected below.
S.No Activity Proposed Capital Cost(5 years ) in Lakhs 1 Afforestation by Plantation around Waste dumps, Tailing 63.75 Dam And Mine Boundary 2 Turfing on embankments of Tailing Dam 155.00 3 Installation of ETP for treatment of Mine pit & Dump and 452.00 workshop water 4 HDPE Geo -membrane lining of Env. Pond Reclaim Ponds 60.00 and Water bodies of Tailing Dam
SENES / D - 20339
MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED
5 Construction of Relief Wells around Waste Dumps and 17.50 Tailing Dam 6 Construction of Toe drains and water bodies ar ound tailing 13.0 dam 7 Cleaning/sludge removal of Oxidation pond 14.00 8 Construction of Waste Water Treatment Plant for sewerage 250.00 of Plant area. 9 Stone pitching of water collection ponds of Tailing Dam 32.50 10 Oil skimmer 0.90 11 Constructi on of proper spillway at Tailing Dam 100.00 12 Dust suppression system of Crushing Plants 200.00 13 HDPE pipelines at Tailing Dam 10.00 14 HDPE pipelines at Waste dumps 5.00 15 Installation of Electric Pumps, Motors, Pipe lines, Power 18.00 arrangement (Approx) at Borekhera Pond, Chhinditola pond & 2.4 KM point Pond of tailing dam area 16 Installation of Electric Pumps,,Motors, Discharge pipe lines, 17.00 Power arrangement (Approx) at North & South ponds of waste dumps 17 Strengthening of Environme ntal Sump near main gate 30.00 18 Water monitoring 31.62 19 Ambient Air monitoring 6.01 20 Making/Cleaning of Env. Sumps, Toe drain, Bunds & Silt 16.5 arrestors, 21 Renewal of Consents, Authorizations & ERC Registration 8.77 22 Construction of Earthen embankments (330m) on SW part 36.50 of tailing dam 23 Procurement of High Volume Air sampler 1.40 24 Submersible pumps for North and South Waste dumps 35.0 25 HDPE pipeline & pump from Environment sump to ETP 20.0 26 HDPE pipeline from Waste dump to Mine boundary at 160.00 South-West 27 Strengthening and pitching of Ponds at Waste dumps 110.00 28 Removal & transportation of T ailings from open discharge 79.5 area at Tailing Dam 29 Phytoremediation studies of tailing dam 5.00 Total 1948.95
SENES / D - 20339
MALANJKHAND COPPER MINE HINDUSTAN COPPER LIMITED
CONCLUSION This project will meet the development needs of the country without causing any negative influence on the environment. It can be summarized that the development of Malanjkhand Copper Mine of M/s. Hindustan Copper Limited will have a positive impact on the socio-economics of the area and lead to overall sustainable development of the region.
SENES / D - 20339