Pre-Feasibility Report
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1 PRE-FEASIBILITY REPORT Name of the project: Road Metal& Building stone by Sri V.Maruthi Chowdary 1 Name and address of the Sri Maruthi Chowdary proponent: S/0 V.Hanumantharaya Chowdary D.NO: 1-91,Yerrampalli (V) Kalyandurg (M), Ananthapuram Dist, (A.P) Cell N.o : 9441317479 2 Location of the N 14° 32’ 24.7”, E 77° 05’ 23.2” project(Coordinates of the N 14° 32’ 28.4” E 77° 05’ 21.4” area and Topo sheet No) N 14° 32’ 28.4” E 77° 05’ 27.9” N 14° 32’ 31.6” E 77° 05’ 25.1” 57 F/02 3 Category of the project as per 1(a)of the Schedule, Category B2 the Schedule under EIA notification 4A Details of application filed Existing project hence Not Applicable before the concerned granting authority Survey No: 396 of Kalyandurg. Extent: 2.519 Ha. Village: Kalyandurg Mandal: Kalyandurg District: Ananthapuramu State: Andhra Pradesh 4B Details of grant made in case 1. Proceedings No.3885/Q4/2010 dated: of existing project 03-08-2011 of Deputy Director of Mines & Geology, Kurnool. Grant order details 2. Proceedings No.244/Q3/RM/2010, dated.09.12.2014 of ADMG, Ananthapuramu. Period of Lease 10 years w.e.f. 09.12.2014 Survey No: 396 of Kalyandurg Extent: 2.519 hects. Village: Kalyandurg Mandal: Kalyandurg District: Ananthapuramu State: Andhra Pradesh 2 1. EXECUTIVE SUMMARY: This relates to a quarry project to produce road metal, rough stone/boulders for the use in construction activity. Due to recent introduction of stone crushing units, the major activity of production of stone aggregate shifted to Industry from the place of quarry site. Presently boulders of about150 mm size are produced in the quarry and are transported to crushing Industry where the boulders are reduced to required sizes. Presently 40mm size is used for metal soling in road works and also in flooring foundations. The next sizes having in demand in the market are 20mm, 12mm, 6mm and stone dust. A mix of 20mm and 12mm is normally used in concrete making in building structures and also making cement roads. The 6mm and stone dust are used for upper layers of blacktop roads. Thus entire produce is put to use in building construction and road laying activity. For development of any area, Stone metal is pre-requisite. Andhra Pradesh is endowed with huge reserves of granite throughout the state. Though geologically there are different rock types like granite, charnockite, dolerite, gabbro, syenite etc., for all these the general terminology under usage is granite, which is hard rock with hardness of 5.5 to 7 in Moh’s scale of hardness. The other rock types like limestone, dolomite are also predominant in the state. Due to their chemical weathering character and low hardness they are normally not preferred in concrete mixing. Besides, the other widely occurring rock type in A.P. is quartzite. Although it is also useful in concrete mix, due to its high hardness (7 Moh’s scale) its crushing cost is relatively high. Hence it is not preferred unless local availability compels to use it. 3 The present project is a Stone metal quarry in operation at least for the last one decade. As per the recent amendments brought to the EIA notification of 2006 vide amendment, dated 07.10.2014for mining of in less than 5 ha area also under the net of obtaining E.C. especially due to the observation of the National Green Tribunal, the present proposal is made for seeking Environmental Clearance (EC). The area under operation covers by a quarry lease granted by the Dy.Director of Mines and Geology, under the provisions of A.P.Minor Mineral Concession Rules 1966.The said grant gives right of quarrying to the proponent subject to the terms and conditions of the lease agreement entered with the Government. The required seigniorage fee is paid to the department for the material dispatched from the quarry site. The quarrying activity is manual using mild explosives with controlled blasting, without affecting the surrounding environment. In fact the activity is far away from the habitations. The material so quarried is dispatched to the stone crushing units, which have already got E.C. Broadly speaking,in the metal quarrying activity there is very little scope for Environmental Pollution and waste generation. The small amount of dust generated is suppressed by way of using water sprinklers. The workers employed in the activity are supplied with nose and ear masks to protect them from possible air and noise pollution. Since the operations are mostly confined to rocky areas of the hill slopes, there is no possibility of land degradation due to this activity. Wherever possible by way of plantations, greenery is maintained. Above all as this material is essential for the developmental activity, mining is inevitable. By way of taking appropriate measures, it is possible to control dust emissions in the mine. 4 2. INTRODUCTION OF THE PROJECT/ BACKGROUND INFORMATION: The project under operation is called mining project which falls under category B2 under schedule specified under notification issued vide S.O. 1533 MOEF dated 14-9-2006 read with amendments issued under S.O 2601 dated 7-10-2014 of MOEF & Climate change. Even though the said notification envisages necessity of obtaining E.C. only for new projects, keeping in view of the notices issued by the department of Mines and Geology, present application is filed for seeking E.C. The project is to produce building stone/road metal stone from the quarry lease granted areas. The material obtained by way of using small quantities of mild explosives under controlled blasting. i) Brief note on use of explosives: The quarrying activity requires dislodging of rock mass from the parental rock which is quite hard. In order to mine this rock material, usage of explosives and blasting is inevitable. .For this purpose to operate by himself, the proponent requires explosive license under the Indian Explosives Act 1884. Since the small quarry operators cannot afford to establish individual explosive Magazines, they are resorting to outsource the blasting operation to an agency which holds the license to use explosives and undertakes the blasting operations in the quarry by appointing qualified blasters. The quarry operator gets blast holes drilled in the spacing and burden suggested by the out sourced agency. The drill holes of 32 mm dia. are drilled to an average depth of 2.0m with a spacing of 1.5 m and burden of 1.0 m. The maximum numbers of holes at one go of blasting will be 20-25. Once the drill holes are kept ready, the licensed blaster of the 5 outsourcing agency takes over for further operations. The holes are charged with 25mm. dia. A based slurry explosives. Stemming is done with locally available clay. The holes are connected with millisecond delay detonators for ensuring maximum fragmentation and fired by using a dynamo type exploder. Before firing the shots, the entire area of a minimum 500 meters radius is cleared of men and machinery and all possible entry points for men or animals are posted with well-informed guards and the final firing with a dynamo exploder is done after clearance is obtained from all the points. After a lapse of sufficient time, the blasted face is inspected and all clear signals is given to the guards. Whistles and Red flags are used for the operations. Extra precautions are taken when a certain quarry is closer to a highway, habitations etc. The explosive charge is reduced and thick mattings are laid over the surface concerned. On blasting, it is natural that large boulders are occasionally produced. These cannot be handled easily for loading and also the crushers cannot crush them. Therefore the secondary blasting is resorted to by drilling Jack hammer holes and using small diameter explosives like kelvex, superdyne etc. by taking the same precautions as per primary blasting ii)Brief description of nature of the project: The product produced from this project is stone of about 150 mm size, a feed to the stone crusher, to produce stone aggregate of 40mm, 20mm,12mm, 6mm sizes for the use in concrete and other road works. The final product in the process is stone dust which canalso be used as filling material, in place of ordinary sand in cement mix and also as top fine layer in block top roads. 6 iii) Need for the project and its importance to the country and or region: As civilization grows, there is need for the improvement of infrastructural facilities. For the development of infrastructure facilities, huge consumption of stone aggregate and road metal is imminent. For every tone of cement consumed, the stone aggregate required would be 3tones. Government is committed to housing to poor people in the present welfare state. In this context requirement of huge quantities of stone aggregates and cement are imminent. The requirement of stone aggregate in A.P. is 90 million tones basing on cement consumption figures, apart from this the stone aggregate is also used in road making where cement is not used. Besides, due to shortage of river sand, presently, rock sand is contemplated to be its substitute. Hence, the requirement of stone for making rock sand increases exponentially and there is need to go for further production of the rock boulders. Hence, there is every need to encourage the mining projects of this type. Moreover, the quarrying activity of the area over considerable time make the area fit for tree growth after exhaustion of the deposit. If the activity takes place below ground level the mine pit helps to act as water reservoirs and thereby improves ground water level in the surrounding areas.