Annexure-Risk Assessment
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Designer Rocks Pvt. Ltd Annexure of Form-1 NNEXURE I Site Location map of M/s. Designer Rocks Pvt. Ltd A-1 Designer Rocks Pvt. Ltd Annexure of Form-1 Quarry Lease boundary map of M/s. Designer Rocks Pvt. Ltd A-2 Designer Rocks Pvt. Ltd Annexure of Form-1 1.0 Introduction M/s. Designer Rocks Pvt. Ltd. proposes to conduct semi mechanized open cast method quarrying for Colour granite extraction in an area of 13.029 ha in Survey No. 1/P of Singupuram Village, Meliaputti Mandal, Srikakulam District, Andhra Pradesh. The quarry lease deed was executed by the Assistant Director of Mines & Geology, vide Proceedings No. 347 / Q / 2010 dated 22.08.2011 for a period of 20 years from 22.08.2011 to 21.08.2031. It is proposed to conduct semi mechanized open cast method quarrying for Colour granite production of 2700 m3/annum. Capital proposed for quarrying is Rs. 63 Lakhs. 2.0 Quarry Lease Area Location The The proposed quarry lease area of 13.029 ha in Survey No. 1/P of Singupuram Village, Meliaputti Mandal, Srikakulam District, Andhra Pradesh. The quarry lease area falls in the Survey of India topo sheet no. 74 B/5 with the co-ordinates of Latitude 18°45'24.75"N and Longitude 84°16'11.88"E with an elevation of 175 m. Nearest village is Rangadaghari located at a distance of 1.1 km from the QL area in S direction. Meliaputti to Tekkalipatnam Road is passing at a distance of 1.1 km in SW direction. NH-5 is passing at a distance of 9.4 km in SE direction. Nearest town is Palasa at a distance of 14.4 km in NE direction. Palasa railway station is at a distance of 16km in E direction. Mahendratanaya River is flowing at a distance of 9.1 km from the QL area in NW direction. Bamsadhara Canal is flowing at a distance of 7.5 km in SE direction. Banapuram Reserve Forest is located adjacent to the lease area. Jhadupalli Reserved Forest is at distance of 1.1 km in SW direction. Lavanyakota Reserved Forest is at distance of 6.7 km in NE direction. Durgam RF is at 3.8 km in NW direction. Durgam Protected Forest is at distance of 3.0 km in N direction. Kalasingi Protected Forest is at distance of 4.9 km in NE direction. Pedda Kedari Reserved Forest is at distance of 7.4 km in SW direction. Andhra Pradesh- Odisha interstate boundary is passing at a distance of 3.0 km in NW direction. There are no national parks, wildlife sanctuaries and critically polluted areas observed in 10km radius from the quarry lease area. Details of the mine lease area are presented in table A-1. A-3 Designer Rocks Pvt. Ltd Annexure of Form-1 Table A-1 Details of the Mine Lease area Sy. Extent in Status of State District Mandal Village No. hects. occupancy Revenue Andhra Pradesh Srikakulam Meliaputti Singupuram 1/P 13.029 Land 3.0 Total Mineable Reserves and Life of Mine Based on the information obtained from the mapping the area 'proved' category reserves may be estimated from the top to the bottom of the hill. From the base of the proved zone, a 5 m depth is considered for the estimation of the reserves under the 'probable' category and from the base of the probable zone, a 5 m depth is considered for the estimation of the reserves under the 'possible' category. The quality of granite is likely to be the same as one in the proved zone. The reserves are estimated by sectional method. It consists of calculating the area and multiplying it by zone of influence to arrive at the volume. The reserves computed on the basis of the above consideration are given in the table A-2. Table A-2 Geological Reserves Section Category Cross Sectional Influence Volume (m 3) Recovery Wastage area (m 2) (m) 30 % (m 3) 70 % in (m 3) A-A1 Proved 4645 75 348375 104513 243862 Probable 2880 75 216000 64800 151200 Possible 2880 75 216000 64800 151200 B-B1 Proved 2960 200 592000 177600 414400 Probable 1560 200 312000 93600 218400 Possible 1560 200 312000 93600 218400 C-C1 Proved 4940 150 741000 222300 518700 Probable 2460 150 369000 110700 258300 Possible 2460 150 369000 110700 258300 D-D1 Proved 5800 150 870000 261000 609000 Probable 1660 150 249000 74700 174300 Possible 1660 150 249000 74700 174300 Total 4843375 1453013 3390362 Proved Reserves 2551375 765413 1785962 Total mineable Reserves In situ reserves under proved category = 2551375 m3 Reserves blocked in the 7.5 m buffer zone = Nil A-4 Designer Rocks Pvt. Ltd Annexure of Form-1 Blocked in benches = 255137 m 3 Balance Reserves = 2296238 m 3 Life of the Mine = 2296238 m3/2700 m 3 = 850 years 4.0 Quarrying Method The Colour Granite in the quarry lease applied area is exposed on the surface with boulders. (Hence, it is proposed to mine the boulders / sheet by open cast, semi- mechanized methods, by developing the benches of 6 m height in 2 phases of 3 m height). Wire Saw cutting will be deployed based on the favorable conditions. The development of benches in the sheet rock will be maintained @ 60° safety slopes. The separation of blocks from the mother rock will be carried out by drilling, wedge cutting, blasting; excavation will be done by the machinery. The secondary splitting, dressing of blocks will be done manually. Therefore, mining operations are to be carried out in this area in 2 stages. i. Development ii. Production 5.0 List of Machinery MACHINERY Excavator 2 no Tipper 4 no Compressors 4 no Jack hammers 12 Crane 20 ton Tools: • Drill Rods of size ranging from 2.5 feet to 10 feet long • Feather and wedges for splitting the holed rock in a linear direction • Grinding Wheels for grinding the diamond bits of the rods • Wire net, Wire rope, chain 50mm, and other spares 6.0 Year wise Development and production for five years 1st Year: Orientation of the bench will be in the N-S Direction and so will be the advancement. The annual excavated material is calculated 9000 m3 and considering a recovery of 30 % it is A-5 Designer Rocks Pvt. Ltd Annexure of Form-1 planned to produce 2700 m3 of saleable blocks and 6300 m3 of waste will be generated. The top RL will be 186 m and the bottom RL will be 174 m. 2nd Year: Orientation of the bench will be in the N-S Direction and so will be the advancement. The annual excavated material is calculated 9000 m3 and considering a recovery of 30 % it is planned to produce 2700 m3 of saleable blocks and 6300 m3 of waste will be generated. The top RL will be 178 m and the bottom RL will be 168 m. 3rd Year: Orientation of the bench will be in the N-S Direction and so will be the advancement. The annual excavated material is calculated 9000 m3 and considering a recovery of 30 % it is planned to produce 2700 m3 of saleable blocks and 6300 m3 of waste will be generated. The top RL will be 178 m and the bottom RL will be 168 m. 4th Year Orientation of the bench will be in the N-S Direction and so will be the advancement. The annual excavated material is calculated 9000 m3 and considering a recovery of 30 % it is planned to produce 2700 m3 of saleable blocks and 6300 m3 of waste will be generated. The top RL will be 168 m and the bottom RL will be 162 m. 5th Year: Orientation of the bench will be in the N-S Direction and so will be the advancement. The annual excavated material is calculated 9000 m3 and considering a recovery of 30 % it is planned to produce 2700 m3 of saleable blocks and 6300 m3 of waste will be generated. The top RL will be 168 m and the bottom RL will be 162 m. Year wise production and waste generation is presented in table A-3. The total quantity of material planned to be excavated during the plan period is estimated as 45000 m3 and out of which the saleable blocks are estimated to be 13500 m3 and the waste generated will be 31500 m3. A-6 Designer Rocks Pvt. Ltd Annexure of Form-1 Table A-3 Year wise Granite production for Five Year Year Volume Recoverable blocks Wastage (m 3) @30 % (m 3) @ 70 % (m 3) 1st Year 9000 2700 6300 2nd Year 9000 2700 6300 3rd Year 9000 2700 6300 4th Year 9000 2700 6300 5th Year 9000 2700 6300 Total 45000 13500 31500 7.0 Employment S. No Description Quantity 1. Mines Manager/ Supervisor 1 2. Compressor Operator 4 3. Drillers 24 4. Excavator operator 2 5. Excavator Helper 2 6. Tipper Drivers 4 7. Cutters 12 8. Helpers 3 9. Watch man 2 10. Water Carriers 2 11. Accountant 1 12. Store Keeper 1 13. Supervisors 2 Total 60 A-7 Designer Rocks Pvt. Ltd Annexure of Form-1 ANNEXURE II Drilling Drill hole pattern will be uniform single lined pattern, equidistance holes from 0.33 m to 0.75 m, 4.5 m in depth. Drilling Parameters i) Drill hole diameter – 34 mm ii) Spacing depends upon the size of the boulder, in general it is 15 cm from hole to hole for better splitting. A-8 Designer Rocks Pvt.