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PRE-FEASIBILITY
REPORT
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1.0EXECUTIVE SUMMARY
1.1 Introduction
The mining lease area of M/s. Sri Dharani Rocks is located at Sy.No. 139/P of
H.D. Halli Village, Agali Mandal, Anantapur District, Andhra Pradesh in an
extent of 1.295 Ha. The mine lease was granted to M/s. Sri Dharani Rocks for a
period of 20 years.
The proposed area is not fit for agriculture and technical report from
Department of Mines and Geology indicate that the subject area has granite
deposits. The salient features of the project are given Table 1.1.
Table 1.1
Salient features of the project
Project Name Colour Granite mine of M/s. Sri Dharani Rocks
Mining Lease Area 1.295 Ha.
Location of mine
Sy.No. 139/P,
H.D. Halli Village,
Agali Mandal,
Anantapur District,
Andhra Pradesh
Minerals of mine Colour Granite Mining
Proposed production of mine 10373 m3/Annum
Method of mining Opencast semi mechanized method
Drilling/Blasting Line Drilling is proposed Blasting is proposed but
will be done in a controlled manner.
No of working days 300 days
Water demand 3.0 KLD
Sources of water Water will be supplied from water tankers
Man power 37
Solid Waste 122184 m3 of waste will be generated during
planned five years
Nearest railway station Hindupur railway Station 85 km due E Direction
from the mine lease area
Nearest airport Kempegowda International airport is 98 km due
SE from the mine lease area
Project Cost Rs. 30 Lakhs
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2.0 INTRODUCTION OF THE PROJECT/ BACKGROUND INFORMATION
2.1 Identification of Project and Project Proponent
The project area is found to have good deposits of Colour granite. Granite is
used as a construction material for flooring, coverings and cladding, making of
kitchen articles, sculptures, etc.
2.2 Brief Information about the Project
The mining lease area of 1.295 Ha. is located in Govt land. Open cast semi
mechanized mining is followed and it has been proposed to produce
approximately 10373 m3/ annum of Colour granite. The nearest habitation is
Devarahalli located at a distance of 1.3 km due SE from lease area.
Sri S. Venugopal (Partner) has filed an application for quarry lease for Colour
Granite over an extent of 1.295 Ha, in Sy.No. 139/P of H.D. Halli Village, Agali
Mandal, Anantapur District, Andhra Pradesh to the Assistant Director of Mines
and Geology, Anantapur. DM&G, Ibrahimpatnam has decided in principle to
grant quarry lease for a period of 20 years. Notice.No.31321/R4-1/2017, Dated
19.01.2018.
2.3 Need for the Project and Its Importance to the Country or Region
The demand for granite increased due to rapid industrialization and growth in
infrastructure. So the number of granite producing quarries is increasing in
India. Granite is the chief material for the export industries like monuments,
flooring slabs, Kitchen articles, sculptures & export. Based on the demand of
Granite, the lessee intends to produce the required quantity of colour Granite for
domestic market.
2.4 Demands-Supply Gap
The demand and supply for the colour granite is growing which makes a lot of
scope for revenue generation. Once the stone is obtained after quarrying it is
further processed and supplied to industries.
India is amongst the leading exporter countries of stones in the world. The major
importers of Indian stones are USA, China, UK, Italy, Belgium, Germany, UAE,
Hong Kong, Spain, Taiwan, Netherlands, Canada, Turkey, France, Russia and
CIS countries. The growth is continuing and the demand for marble, granite,
sandstone and other dimensional stones and stone products is anticipated to
grow at around 15% CAGR.
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2.5 Domestic/ Export Markets
Although granite is a minor mineral, it is a major contributor in foreign
exchange earnings. India is a major exporter of natural stone and granite, which
is the second largest foreign exchange earner for India besides iron ore in
minerals category.
2.6 Employment Generation
Proposed mining is semi-mechanized method and this project operation will
provide livelihood to the 37 workers. It will provide employment to the people
residing in vicinity.
3.0PROJECT DESCRIPTION
3.1 Type of Project Including Interlinked and Interdependent Projects, If Any.
The Colour Granite mine is of 1.295 Ha. No interlinked projects were associated
with this project.
3.2 Location
The mining lease area is located in Sy.No.139/P of H.D. Halli Village, Agali
Mandal, Anantapur District, Andhra Pradesh. The mining lease area falls in
Survey of India.
Toposheet No. : 57 G/1
Latitude : 13° 46’ 58.6’’ N
Longitude : 77° 00’ 16.8’’ E
Location of the mining lease in Anantapur District is shown in Figure- 1.
Google Image is shown in Figure – 2
10km radius map is shown in Figure - 3
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FIGURE – 1
LOCATION MAP
Mine Lease Area
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FIGURE – 2
GOOGLE IMAGE
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FIGURE – 3
10KM RADIUS MAP
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3.3 Details of Alternate Sites
No alternate site was considered as the project is mineral specific and site
specific.
3.4 Size or magnitude of operation The mine has lease over an area of 1.295 Ha. and the production rate is 10373
m3/Annum. The lessee follows open cast semi mechanized mining.
Production parameters
The Mineral production target for five years is given in Table 3.1
Table 3.1
Year wise Granite Production Programme
Year Bench Height
Production m3
Granite Waste
1st year 6m 10373 24786
2nd year 6m 10125 24210
3rd year 6m 10217 24404
4th year 6m 10263 24494
5th year 6m 10185 24291
Total 51162 122184
*Source: Mine plan
3.5 Geology and Reserves
3.5.1 Regional Geological setup
The Geological formations in the Anantapur District can broadly be divided in
distinctand well-marked groups and older group of Metamorphic rocks
belonging to Archean and Younger group of Sedimentary rocks belonging to the
Proterozoic age the later cover part of Devanakonda block. The remaining parts
of District is Occupied by Archean rocks which consist of Schist, Gneisses, Quartz
veins and basic dykes. The Archean rocks have suffered considerable degree of
tectonic disturbances, as a result of which the rocks have been metamorphosed
and recrystallized.
Stratigraphic Sequences established in the area as follows:
Geological age Lithology
Recent Alluvium
Pleistocene Laterite
---------------------------------Unconformity-----------------------------------------
Younger intrusive, epidote veins, quartz veins
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and reefs. Pegmatite’s veins of Alkali Feldspar granite and syenite Dolerite / Gabbro / Basalt dykes Leuco Granite. Nebulitic to homophonous biotite granite
Peninsular gneissic
complex
(Migmatite group)
Nebulitic to homophonous
Hornblende Granite and Leuco Hornblende
granite
Archeans Biotite Granite Gneiss, Hornblende Granite
Gneiss, Porphyritic Hornblende Granite.
3.5.2 Local Geology
The Subject area belongs to small mound rising to a height of about 2m with
boulders from ground level. The granite is exposed as a sheet rock in the centre
portion with gently slope and soil is covering on top portion. However the granite
sheet is well exposed without any burden at higher altitudes. It represents late
magmatic injection of closepet granite.
The commercial name for colour Granite is Multi Colour Granite of Anantapur. The
rock is essentially composed of Quartz, orthoclase feldspar and biotite. The rock is
compact and moderately hard with less joints.
3.5.3 Exploration
1) Production proposed for the next five years:
In the present area there is a cluster of quarries of different sizes. For the purpose of
optimizing the production most of these quarries are operating since long, As recent
rules and regulations of DMG & APPCB & APPMC, all Quarries should follow
Mining Plan , EC, CFE & CFO, also be noted that DMG issuing the permission
based up on above all required Papers.
Geological reserves are given below in Table 3.2.
Table 3.2-Details of Reserves
Category Granite Production in
Cum
Granite Waste
In Cum
Proved 129500 388500
Probable 16188 48563
Possible 16188 48563
Total 161875 485625
After BZ 119875 359625
After BS 108115 324345
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Life of the Quarry: Mineable reserves/Annual production=108115/10232 = 10.56
years *(Source: Mining plan)
3.6 PROJECT DESCRIPTION WITH PROCESS DETAILS
3.6.1 Method of Mining
a) Type of Mining:
Open cast method of mining is carried out in this mine by semi
mechanization by using compressor operated jack hammer drills, excavators,
and dumper etc, Transportation will be made by trucks to dispatching point.
b) Brief Description: (method of working)
The mining operations are carried out by semi-mechanization as open cast
mining. Hydraulic excavator and compresses operated jack hammers were
used for cutting the rock. Close spaced drilling of 0.2m was adopted along a
straight line and charged with low explosives to avoid feather cracks.
c) Removal / Excavation of O.B. and other Quarry Waste:
Mainly the over burden is excavated with the help of excavators of 30-35 Ton
capacity. Sometimes hard rock poses the problem for digging by excavators.
Hence, it requires loosening by mild blasting with the help of licensed blaster
such as foreman and mate. The weathered rock and useless sheet rock can be
drilled by jack hammers and blasted them into fragments /pieces to facilitate
their removal.
d) Separation of large primary Blocks from the mother rock by pre-splitting
(Primary):
The mining will be followed in the form of linear cut method. This involves
loosing of the primary block from mother rock. Hence primary cutting will be
done by line drilling method where close spaced parallel holes along straight
line will be made. Line drilling method is used for separation of primary
blocks.
i. Once the free face is developed in working place, the primary cuts are taken
up over a maximum length of 10m to a width of 3m and to a depth of 6m
depends upon the joints availability. These dimensions are confirmed as for
field studies. Primary block will be cut into secondary blocks by Jackhammer
drilling and wedge cutting and this block will be dislodged from in-situ
position by an excavator.
ii. Line drilling method will be used for cutting the primary blocks which involve
drilling and blasting.
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iii. The holes are charged with low explosive cartridge like gun powder and non-
delay detonators for smooth blasting.
iv. The use of delay detonates causes fragmentation and cracks in rocks. The non-
detonating cords are inserted into the holes and the holes are stemmed with
muck and plugged at the mouth and fired.
v. Thus the block will separate from the mother rock, which is pulled off from
the face with cranes or shovel.
e) Sub-Division of large Primary Blocks into Secondary Block:
This will be done drilling close spaced holes (along a line) down to the depth and
the secondary block will be removed easily by just pulling it with the help of
proclain. Close spaced holes will be drilled to the half the length of the block on
either side of it by using wedges blocks can be separated.
f) Production of Commercial Blocks:-
Major boulders exposed are used for small size marketable blocks. After primary
separation the rock mass will be carefully examined to avoid hair line cracks,
mineral segregations and veins etc., the dressing of the rough blocks will be
made by chipping the edges and geometrically equating the edges of the block at
the dressing yard. The rough blocks obtained after primary cut it will be dressed
for obtained good geometric shape of granite. Thus the commercial blocks are
produced.
g) Extent of Mechanization
The machinery used to carry out the mining operations are given Table 3.3
Table 3.3Mining Machinery
S.No. Name of the Machinery No. of machinery
1. Tata Hitachi 350 Excavator 1
2. Jack Hammers 5
3. Power Generator 1
4. Tipper 2
5 Air Compressor 1
6. Wiresaw Machine 1 *(Source: Mining plan)
3.7 Raw Material Required Along With Estimated Quantity, Likely Source,
Marketing Area of Final Product/S, Mode of Transport of Raw Material and
Finished Product
No raw material will be required in the project. The operation involves the
extraction of colour granite and dumping in stock yard. The dressed
dimensional granite will be transported through hired trucks to the granite
market.
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3.7.1 Use of Mineral
Colour granite will be used in domestic market. Its hard nature made it a very
suitable and durable material for most Civil Engineering and Construction
works. It is used in different ways.
3.7.2 Processing
Processing of colour granite is not involved.
3.8 Resource Optimization/ Recycling and Reuse
Not envisaged.
3.9 Availability of Water Its Source, Energy/ Power Requirement and Source
3.9.1 Water Requirement
Water is required only for drinking purposes, green belt, wire saw cutting
and dust suppression. The number of working people is around 37 so the
total water requirement will be around 3.0 KLD. This water will be supplied
from tankers/bore wells of nearby area.
Table 3.4: Water Requirement
Purpose Total Requirement (KLD)
Dust suppression 1.0
Greenbelt Development 0.5
Domestic Usage 0.5
For Processing 1.0
Total 3.0
3.10 QUANTITY OF WASTES TO BE GENERATED (LIQUID AND SOLID)
AND SCHEME FOR THEIR MANAGEMENT/ DISPOSAL
3.10.1 Solid Waste Generation& its Disposal
About 122184 m3 (24786 m3 per annum) of waste is generated. Dumping of waste
will be dumped in Sy.No.136/1 an Extent of 2 .000 Acres in the outside of the
Q.L. applied area with a size of 150 x 60m length and width to a height of 15 mts
which is at a distance of 500 mts in SW side from the QL applied area.
* (Source: Mine Plan)
3.10.2 Liquid Effluent
No liquid effluent will be generated at the mine site. The domestic wastewater
generated will be sent to septic tanks followed by soak pits.
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4.0SITE ANALYSIS
4.1Connectivity
4.1.1 Nearest Railway Station
Hindupur Railway station 85 km due E direction from the mine lease 4.1.2 Nearest Airport
Kempegowda International airport is 98 km due SE direction from the mine lease
area
4.2 LANDFORM, LANDUSE AND LAND OWNERSHIP
The mining lease is located in Govt land. The Q.L area does not have any top soil
cover. However some top soil will be available between the slabs.
4.3 Topography
The lease applied area is a plain land. The area is devoid of any forest or tree cover.
It comprises shrubs only. There are no prominent natural drainage channels in the
area. In general the area is plain studded with hillocks. Sometimes they may rise
gently as continuous hills, presenting a rugged topography.
5.1 Planning Concept
It is proposed to produce 10373 m3/annum of colour granite from the proposed
mining lease.
5.2 Population projection
The project will employ mostly workers from nearby villages. There will not be
any increase in population due to the project.
5.3 Land use planning
The project is located in 1.295 Ha. of Government land. There will be change in
landuse as the granite will be excavated. After the exhaustion of granite, the pit will
be backfilled with the waste generated.
5.4 Assessment of Infrastructure Demand (Physical & Social)
On the basis of the preliminary site visit, the infrastructure demand in the
villages was assessed on the basis of need and priority. The assessment will be
made in the socio economic survey &will be submitted at the time of final
presentation regarding EC.
5.5 Amenities/Facilities
Office, Rest shelter, first aid room, workshop will be constructed.
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6.0 PROPOSED INFRASTRUCTURE
6.1 Industrial Area (Processing Area)
No infrastructure is proposed.
6.2 Residential Area (Non Processing Area)
As the local persons will be given employment, no residential area/ housing is proposed within the mining lease area. 6.3 Green Belt
Green belt will be developed along the boundaries of mine lease area.
6.4 Water Management
About 1.0 KLD will be required dust suppression, 0.5KLD for greenbelt purpose,
1.0 KLD for processing and about 0.5 KLD for domestic therefore total water
requirement is 3.0 KLD. This water will be supplied from tankers/borewells the
nearby area.
6.5 Sewerage System
The domestic wastewater generated will be sent to septic tanks followed by
soak pits.
6.6 Industrial Waste Management
Not applicable.
6.7 Solid Waste management
About 122184 m3 (24786 m3 per annum) of waste is generated. Dumping of waste
will be dumped in Sy.No.136/1 an Extent of 2 .000 Acres in the outside of the
Q.L. applied area with a size of 150 x 60m length and width to a height of 15 mts
which is at a distance of 500 mts in SW side from the QL applied area.
7.0 REHABILITATION AND RESETTLEMENT (R&R) PLAN
There will be no displacement of houses. Hence rehabilitation and resettlement is
not envisaged.
8.0 ANALYSIS OF PROPOSAL (FINAL RECOMMENDATIONS)
8.1 Financial and Social Benefits with Special Emphasis on the Benefit to the Local
People Including Tribal Population, If Any, In the Area.
Although granite is a minor mineral, it is a major contributor in foreign exchange
earnings. India is the second largest exporter of raw granite after China and ahead
of Brazil and South Africa.
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This project will also provide employment to local people helping them earn
livelihood.