M/s Pacific Minerals Private Ltd. Exe. Summary Netra Manganese Mine (20.0 ha) Executive Summary 1.0 Introduction Netra Manganese Mining Project is located at village – Netra, Tehsil Waraseoni, District Balaghat (M.P.). The total lease area of the mine is 20.0 ha. This lease is being operated by M/s Pacfic Minerals Pvt. Ltd. and having consent under section 25/26 of the Water (Prevention & Control of Pollution) Act 1974 & under section 21 of the Air (Prevention & Control of Pollution) Acts 1981 from M. P. Pollution Control Board for the capacity 26,000 TPA. The Lease area is located in the Jurisdiction of village –Netra, which is at a distance of about 8.0 km over a forest land. The company is having forest Clearance under Forest Conservation Act 1980 from Ministry of Environment & Forest, New Delhi vide letter No. 8C/5/589/98-FCW/Vol-II/524 dtd. 11/03/2008. 1.1 Identification of project and project proponent The subjected mining lease is operated for mining of Manganese ore on 20.0 ha with production capacity of 26000 Tonne per annum at village & Forest compartment G. F. Sonewani forest range, Tehsil Waraseoni & Dist. Balaghat (MP). At present the mine operations are open cast, the company is going for underground mining & dump ore deposit along with opan cast Mining. As per the EIA Notification dated 14.09.2006 as amended till date, subject mining project falls in Category ‘B’ Section (1) (a) because lease area is below 50 ha and does not in preview of the general condition i.e. Protected Areas notified under the Wild Life (Protection) Act, 1972, Critically Polluted areas as notified by the Central Pollution Control Board from time to time, Notified Eco-sensitive areas & Inter-State boundaries. The lease area is being hold by M/s Pacific Minerals Pvt. Ltd. Baihar Road, Balaghat (MP). The correspondence address is Baihar Road, Balaghat (MP). 1.2 Brief description of nature, size, and location of the project The proposed method of excavation is open cast, Dump ore as well as underground method. The subject lease area is located at 21 o51’52” North latitude and 79 o58’51” East longitude and covered under Toposheet No. 55/O/13. The nearest railhead is Saugi on Tumsar – Tirodi BG sector of South-Eastern Railway and is about 12 km from the mine 1 M/s Pacific Minerals Private Ltd. Exe. Summary Netra Manganese Mine (20.0 ha) site. The area is approachable in all season and the connectivity is by means of regular buses, matador’s taxi etc up to Waraseoni. Table-1.0 Details of Environmental Setting S. No. Particulars Details 1. Locations Village & Forest Range G. F. Sonewani Forest Range Tehsil Waraseoni District Balaghat State MP Khasra no./ Compartment No. Old Compartment No. 820 & new Compartment No. 464 Lease area 20.0 ha 2. Latitude 21 o51’52” North Longitude 79 o58’51”East 3. Nearest City Waraseoni – 20 km 4. Nearest Railway Station Saugi – 12.0 km - SE 5. Nearest Airport Nagpur - 150.0 km 6. Nearest Tourist Place within 10km None radius. 7. Ecological Sensitive Areas (Wild Life None Sanctuaries) within 10km radius. 8. Reserved / Protected Forest within G. F. Sonewani Forest Range 10km radius (Boundary to boundary distance) 9. Nearest Village Netra 3.5 km - SE 10. Nearest River Chandan River 7.6 km in S 11. Other mining lease falling within the One Mn Mine (under forest land) 01 km radius Source: Field Survey 2.0 Regional Geology The dharwarian system covers large connected areas within Madhya Pradesh and bihar, spreading over Balaghat Nagpur, Bhandara, Chhindwara and over Hazaribagh and Rewah. In these it possesses a highly characteristic metalliferous facies of deposits. The Dharwarian rocks of the Nagpur, Chhindwara, and Bhandara districts of Madhya Pradesh have been named as Sausar series. These rocks type carry important economic deposits of management Ores. The Sausar series have been sub-divided into stages which have a wide geographical extent in Madhya Pradesh and can therefore be correlated in distant outcrops of the series. (3) Management ore band (primary bedded Deposit) with 2 M/s Pacific Minerals Private Ltd. Exe. Summary Netra Manganese Mine (20.0 ha) Quarzite: This formation overlies the muscovite schist. It massive bedded and will jointed, medium to fine grained rocks with numerous thin band/ layers of Manganese ore and locally of pink rhodonite. 2.1 Topography The area forms a small part of the east-west trending maikal range of satpura. The renewal mining lease covers part of two hillocks in the north and south and separated by an east-west depression with a saddle in the central part. Part of the area is covered by an old pit. There is growth of shrubbery & same vegetations in the Northern portion of the area. The forest is at 0.4 to 0.5. The highest MRL is 295 and the lowest MRL is 246. 2.2 Hydrology There are no perennial sources of surface water such as river or nalla in the lease area. Chandan River is the nearest river located at about 7.6 km distance. The general ground water table in the lease area are varies from 35m to 38m. Field survey revealed that the ground water structures in the 10 km area basically fall under three categories namely dug wells, dug cum bore wells and tube wells. The present mine working level of 6m. The dewatering of active mining pits is being done with the help of pumps and the dewatered water shall be used for plantation & given to the nearby farmers for plantation purpose. 2.3 Reserves and Chemical Composition S. No. Constituent Sillico Manganese 1. Mn % + 35 % 2. Fe % 6-7 % 3. SiO 2 % 25- 28 % 4. AlO 3% 3 % 5. P % 0.25 % Source: Mining Plan. The total geological reserves – 2, 17,674 tones. 2.4 Use of Minerals The ore is being sold to the buyers who are Ferro producers & others for metallurgical purpose, on the basis of chemical composition of the ore. 3 M/s Pacific Minerals Private Ltd. Exe. Summary Netra Manganese Mine (20.0 ha) 2.5 Mining Method The method of excavation is open cost, Dump Ore as well as underground method as per given in approved mining plan. This is a working mine consists of following operations: 1. Mining of Manganese ore bed by drilling and blasting by underground as well as open cost. 2. Removal of mined (ROM) to surface yard for proper grading, sizing, sorting, stacking and jigging etc. 3. Preparing grade wise stacks of ore for delivery by braking, sorting, sizing, screening and separation of Mn ore in different grades. 4. De-watering of the working pits whenever required. The mining operation include production from 1. Primary bedded deposit by open cost method. 2. Dump ore deposit and 3. Exploratory underground method of mining. Blasting Parameters 1. Excavation in ore/country rock is made by underground openings of 24m (w) x 1.8m (ht). 2. There is no free face except one for drilling operation. It amounts to solid blasting where free face is aerated. 3. The ore & country rock both are reasonably hard where 4 to 5 no. of holes are required per sqm. of blasting area/face. Thus for 2.4 x 1.8m size, nearly 20 holes of 1.2 m length is optimum 4. For solid, blasting, the consumption of explosives is much higher than open- cast working or stops where multiple free faces are available. 5. The consumption of explosives depends on the strength and density of explosives. 6. Explosives non in use metalliferous mines for shot hole drillings are slurry explosives in length of 20 cm each, 25mm. dia. Which is initiated by electric detonators (delay detonators). The weight /25 gm/ cartridge. 7. For firing shots, electric delay detonators are used i.e milli- second detonator or short delay detonators. 4 M/s Pacific Minerals Private Ltd. Exe. Summary Netra Manganese Mine (20.0 ha) 8. Delay detonators are necessarily required for Efficient blasting, To control noise & vibrations Blasting details Size of the face – 2.4 x 1.8 = 4.32 sqm, = 45 sqm including over breack etc. Length of holes – 1.2m of 33m dia Spacing & Burden 0.60m x 0.45m No. of hole – 20 Total explosive blast = 20 x 4 x 125 gm = 10kg. Powder factor = 3.5/10 = 0.35 m 3 / kg of explosive = 2.85 kg/ m3 Slurry explosive along with electric with delay/ instant detonators shall be used for development and production purpose. 2.6 Precaution to be taken during Drilling & Blasting Following precaution will be taken during blasting period. Qualified blaster shall be engaged in preparation of charge and charging and stemming of holes. Sufficient warning by signal shall be given over the entire area before a shot is charged, stemmed or fired, Controlled / muffled blasting will be done prevent flying fragment which may cause damage to local inhabitants within danger zone. The number of shots which exploded shall be counted by the blaster to assess misfire. All necessary precautions as enumerated under 106(2) (b) of MMR 1961 will be followed. 2.7 Disposal of Mine Waste Out of total production of manganese ore 90% will be readily marketable & about 5% will be mineralized rejected which may intermitantly mixed & used balance production consist muscovite schist, quartzite, siliceous impurities, waste intercalation, miming loss & fines of -5mm size, void and clay pocket. The quantity to be generated during the next two years is given in table 2.0. Table 2.0 Dump Ore deposit Years ROM T ROM Waste Graded Mineralized Waste Ore to 60% T 40% T 90% T rejects 5 % 5% T OB ratio 5 M/s Pacific Minerals Private Ltd.