Proposed Dolomite & Limestone Mining Project...
Transcript of Proposed Dolomite & Limestone Mining Project...
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
Pre-Feasibility Report
Ramky Enviro Engineers Limited Page 1
PRE-FEASIBILITY REPORT
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga
(T), Chitradurga (Dist.), Karnataka State.
1. Executive Summary:
S.No. Description Details
1. Name of the Project Proposed Dolomite & Limestone Mining Project,
Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.),
Karnataka State.
2. Name and Address of the
Applicant:
(present & permanent address)
Sri. T.K.Chandrappa, Mining Engineer,
#737,4th Main, 4th Cross, Srinivasa Block, BEML Layout,
Rajarajeshwari nagar, Bangalore- 560 072.
Karnataka.
3. Location of the Mine The mine lease area is located near Kanabenahalli Village,
Hosadurga Taluk, Chitradurga District, Karnataka State.
The Mine lease area is 430 Acers (174.02 Ha)
Coordinates of the Mine Lease area are
Latitude 13°43’ 53.3” N to 13°45’30.2” N
Longitude 76°30’ 21” E to 76°29’26” E
4. Production/Estimated
Reserves
Proposed capacity: 1.5 Lakhs TPA (1.00 Lakhs TPA of
Limestone + 0.5 Lakhs TPA of Dolomite )
Estimation Limestone Dolomite
Estimated Mineable
reserves
62.68 Lakhs
tons
25.011 Lakhs
tons
Expected rate of
production/annum
during first five years
0.84 Lakhs
TPA
0.34 Lakhs
TPA
Expected rate of
production when mine is
fully developed
1.0 Lakhs TPA 0.5 Lakhs
TPA
5. Total area reserved for Mining 77.35 Ha
6. Total Water requirement &
Source
The total water requirement of 112 KLD for the purpose of
green belt development, dust suppression, workshop, office,
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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S.No. Description Details
and work men will be met through Water tank mounted on
Tractor, (detachable) and Well near by village.
7. Working hours One shift operation with 8 hour shift has been planned
8. Manpower [Operation] S.No Designation Total
1 Highly Skilled 1
2 Skilled 1
3 Semi Skilled 18
4 Un-skilled 79
Total 99
Source: Mining Plan of Limestone and dolomite mining Kanubenahalli village, Chitradurga. prepared by IBM, GOA
9. Estimated Cost of the Project Capital cost: 60 Crores for mining period of 20 Years
10. Nearest Railway station,
Sea Port, Airport
Ajampura in West (50 km) is the nearest railway station.
Mangalore in South West is the nearest Sea port (280 km),
Bengaluru in East is the nearest Airport (160 km).
11. Existence of Public Road,
Railway Track nearby
All weather road is passing in the applied mining lease
through which applied area is approachable from
Kanubenahalli village located 1 to 1.5 km in West.
12. Police station and other
facilities
Huliyar in South (18 km) is having all facilities like Police
station, Fire station Hospital, Bank, Post Office, School,
Workshops etc.
2. Introduction of the project:
2.1. Identification of Project and Project proponent:
The Chitradurga schist belt in Chitradurga district hosts economic deposits like Iron,
Manganese, Limestone & Dolomite deposits and mining activities are being carried out since
decades in this region. There are a number of mining leases operating in this region producing
about 3-5 million TPA of ore deposits for internal consumption and exports. In the years to
come, the demand for the deposits produced will be on the rise both from domestic and export
fronts. In order to meet the growing demand it is inevitable to open up hitherto
unexplored/unused-mineralized zones for systematic development and ore production.
A study conducted in this mining region to integrate environmental concerns with the mining
and related activities sponsored by the Govt. of Karnataka has come up with findings and
suggestions for systematic and scientific mining. It is learnt that this study has voiced the
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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opinion that with appropriate environmental protection measures this region and stated that
this region can produce 10 to 15 times more than the present level of output.
Sri. T.K.Chandrappa, Mining Engineer, who has vast experience about 42 years in mining has
obtained prospecting license (P.L.No.-3366) for Limestone & Dolomite in Sy. No. 37 & 43 of
Kanubenahalli Village, Hosadurga Taluk, Chitradurga district, Karnataka for a period of 2 years
w.e.f Dated: 13-12-2006. Lease has been renewed for the period of 20 yrs Approval of mine
lease area is attached as Annexure 1.
2.2. Breif Description of nature of the project:
The proposed project involves the mining of limestone and dolomite in an extent of 430 Acers
(174.02 Ha) and it falls in schedule 1(a) (i) Mining of Minerals of Category ‘A’. Approval of
mine lease area is attached as Annexure 1.
2.2.1. Limestone
Based on field observation, Area comprised within the zone of limestone mineralization.
Out crops of Limestone are well exposed all along strike both length & width wise
intermittently with about 0.0 to 0.5m thick soil cover is observed. Apart of these, an old
working, Bore holes, trenches and trail pits justifies depth continuity. Generally, this
Limestone is of sedimentary formation running all along the strike N190 W/ S190 E dip
varies between 200 to 400 East. Limestone found to be compact, hard, homogeneous, fine
grained & concretionary rocks.
2.2.2. Dolomite
Dolomite is a sedimentary rock of carbonate composition and is made up chiefly of a
mineral Dolomite which is CaMg (CO3)2. Applied area comprised of Manganiferrous
quartzite all along ridge surrounded by the Dolomite in the zone of Limestone
mineralization zone. The origin of dolomite has been an incompletely solved problem. It
is believed that deposit might have formed by the replacement of limestone by magnesium-
rich solutions during the intrusion of Manganiferrous quartzite.
2.2.3. Dolomitic Limestone
This is the Mg rich limestone which is the resultant of limestone replaced by magnesium -
rich solutions. At this area, Dolomitic Limestone bifurcates the Limestone and Dolomite.
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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2.3. Need for the project and its importance to the Country and or Region:
It has recommended opening up new areas in order to reduce the stress/impact on existing
mining leases and this will also lead to exploring the mineral bodies using drilling etc. Proper
exploration of mineral resources will delineate the quality/quantity and help to wrap up at the
most suitable exploitation strategy with an eye on conserving the mineral and reducing waste
handling.
Limestone and Dolomite will be supplied to the steel plant and cement industries located in
Karnataka. Cement grade limestone will be supplied to cement plant after crushing. Material
of -40+10 mm will be sent to steel and cement plant. Fines (-10 mm) will be stacked separately.
This will be sold to fertilizer and other industries as and when required.
2.4. Demand – Supply Gap:
Dolomite is consumed by iron & steel, Ferro-alloys, fertilizer, glass, alloy steel and other
industries. The total consumption of dolomite in 2011-12 was 6.33 million tonnes. It increased
by 1% from that in the year 2010-11, mainly in sponge iron industry. Iron & steel industry was
the major consumer of dolomite in 2011-12 accounting 72%, followed by sponge iron (17%)
and cement & Ferro-alloys (2% each). The remaining quantity was utilised by other industries,
such as alloy steel, glass, fertilizer, paint, refractory, etc.
The limestone resources are classified as per United Nations Framework Classification
(UNFC) system. As per IBM the total cement grade limestone resources is 124,539.551 million
tonnes, out of which the total cement grade limestone reserves is 8948.926 million tonnes
UNFC code (111), (121) and (122), and the total remaining resources is 115,590.625 million
tonnes. The production of the cement by India in the year 2011-12 is 246 million tones falling
short by 22 million tones than the proposed target.
2.5. Domestic and Export Market:
Limestone & Dolomite will be supplied to the Steel plant and Cement industries located in
Karnataka. Cement grade Limestone will be supplied Cement plant after crushing. Material of
-40+10 mm will be sent to Steel & Cement plant. Fines (-10mm) will be stacked separately.
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
Pre-Feasibility Report
Ramky Enviro Engineers Limited Page 5
This will be sold to fertilizer and other industries as and when requirement. No exports
envisaged.
2.6. Employment Generation (Direct and Indirect) due to the Project.
The mining project will generate direct & indirect employment. About 99 people will get direct
employment.
Employment Potential for the proposed mining activity like crushing and screening plant
operation is listed below.
1 Highly Skilled 1
2 Skilled 1
3 Semi Skilled 18
4 Un – Skilled 79
Total 99
3. Project Discription:
3.1. Type of the project including interlinked and interdependent projects:
The proposed project is for minig of limestone and dolomite. Lease area is 430 Acers (174.02
Ha) and it is proposed to produce 1.0 lakhs TPA of limestone and 0.5 lakhs TPAof Dolomite.
Lease area is situated at Kanubenahalli Village, Hosadurga Taluk, Chitradurga district,
Karnataka.
No interlinked or Interdependent Project.
3.2. Location:
District and State: Chitradurga, Karnataka
Taluka: Hosadurga
Village: Kanubenahalli
Khasra No: Part of Sy. Nos. 43 & 37
Area: 430 Acers (174.02 Ha) Non Forest
Ownership/Occupancy: Govt. Revenue Land
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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Existence of Public Road,
Railway nearby:
A weather road is passing in the applied mining
lease through which applied area is approachable
from Kanubenahalli village located 1 to 1.5 Kms
West.
Toposheet no, Latitude &
Longitude
Topo Sheet No :- D43Q5, D43Q6, D43Q9,
D43Q10 (New)
Latitude- 13°43'53.3"N to 13°45'30.2"N
Longitude- 76°30'21.0"E to 76°29'26.0" E
Nearest Railway station, Sea
Port
Ajampura 50km (W) is the nearest railway
station, Mangalore is the nearest Sea port 280km
(SW), Bengaluru is the nearest Airport 160km
(E).
Police station and other
facilities
Huliyar (18km) is having all facilities like Police
station, Fire station Hospital, Bank, Post Office,
School, Workshops etc.
The index map of the site is given in Figure 3-1. The location map is shown with the 10 Km
radius from the periphery of the Mining lease Area in Figure 3-2.
The entire Mine Lease Area including 10km buffer area falls in Survey of India (SOI)
Toposheet No. D43Q5, D43Q6, D43Q9, D43Q10 (New).
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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Figure 3-1 Index Map Showing the Project Site
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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Figure 3-2 Map of the Area 5 km around the project site
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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3.3. Details of alternative sites:
The mining project is site specific project as it is related to occurance of Dolomite and
Limtestone. Hence no alternative sites were studied for purpose.
3.4. Size or Magnitude of Operation:
When the mine is fully developed, a targeted production of around 1.00 lakh tons of Limestone
and 0.50 lakh tons of Dolomite can be achieved from this area at the end of the first fifth year
plan period.
Table 3-1 Mineable reserves and anticipated life of the Mine:
1
Estimated mineable reserves
(only Proved Category is
considered)
Limestone – 62.68 lakh tons
Dolomite – 25.01lakh tons
2
Expected rate of
production/annum during First
Five Years.
Limestone – 0.84 lakh tons
Dolomite – 0.34 lakh tons
3
Expected rate of production
when the mine is fully
Developed
Limestone – 1.0 lakh tons
Dolomite – 0.5 lakh tons
(After first 5 yrs production, mineable reserves will be 58.48 lakh tons for limestone & 23.31 lakh tons for Dolomite. so, @ 1.00 lakhs/annum for limestone & 0.50 lakhs/annum for Dolomite, these reserves will last for remaining 58.48 yrs. Hence the anticipated life of mine will be 63.48yrs, say 63 years. Life of Mine may change as per exploration results).
3.5. Project Discription and Project Details:
The estimated reserves of Limestone and Dolomite from this applied area are 87.69 lakh tons
(Mineable reserves) Ref: Annexure no. IIIA,B & C. The estimated reserves 87.69 lakh tons of
includes sum of Limestone – 62.68 lakh tons and Dolomite – 25.01 lakh tons and hence
estimated life of the mine is 63.47 years say 63 years. Conceptual mining plan is prepared for
20 years, out of total mineable reserves 87.69 lakh tons only 19.20 lakh tons of Limestone and
9.20 lakh tons of Dolomite will be utilized in this Conceptual mining plan period and rest
reserves are considered after the renewal.
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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By the end of first five years plan a production level of 1.50 lakh tons (Limestone – 1.00 lakh
tons + Dolomite – 0.50 lakh tons) will be achieved. This level will be maintained for each year
of successive five-year schemes. Based on that, Ultimate pit limit fixed by keeping pit slope
angle of 450. This plate also shows the details of land utilization in the plan period and also up
to the conceptual plan period. Post mining land use details are also shown in Figure 3-3 and
3-4
Table 3-2 Govt. Revenue Land used for Mining purposes (Ultimate land use pattern)
S.no Land Use Total in Ha
1. Mining 77.35
2. Dumping 10.1
3. Top Soil Yard 1.09
4. Sub grade Mineral
Dump 2.93
5. Crushing+Screening
Plant 1.69
6. Mineral Storage 2.79
7. Statutory Buildings 0.32
8. Roads 0.48
9. Future expansion/
Afforestation/plantation 77.27
Total 174.02
3.5.1. First five years Plan period:
During this period, it is proposed to produce a total of 590,339 tons of production
(Limestone – 4.20 lakh tons + Dolomite – 1.70 lakh tons) and 210,391 tons of waste
handling. This waste will be dumped in an area of 0.73 Ha. (i.e., 210,391/1.8 x 1.25 /20m
height = 0.73) with a maximum height of 20m. During plan period, the dumping will be
carried out in earmarked area. Afforestation will be carried out along the safety zone over
an extent of 3.27 ha.
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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3.5.2. Second five years Plan period:
During this period, it is proposed to produce a total of 7.50 lakh tons of production
(Limestone – 5.00 lakh tons + Dolomite – 2.5 lakh tons) and 2.49 lakh tons of waste
handling. This waste will be dumped in an area of 0.87 Ha. (i.e., 2.49 /1.8 x 1.25 /20m
height = 0.87) with a maximum height of 20m. During plan period, the dumping will be
carried out in earmarked area. Afforestation will be carried out along the slopes of the
previous Dumped area over an extent of 0.73 ha.
3.5.3. Third Five years Plan Period.
During this period, it is proposed to produce a total of 7.50 lakh tons of production
(Limestone – 5.00 lakh tons + Dolomite – 2.50 lakh tons) and 2.49 lakh tons of waste
handling. This waste will be dumped in an area of 0.87 Ha. (i.e., 2.49 /1.8 x 1.25 /20m
height = 0.87) with a maximum height of 20m. During plan period, the dumping will be
carried out in designated area. Afforestation will be carried out along the slopes of the
previous Dumped area over an extent of 0.87 ha.
3.5.4. Fourth Five years Plan Period and up-to the Conceptual stage.
During this stage it is proposed to produce a total of 7.50 lakh tons of production
(Limestone – 5.00 lakh tons + Dolomite – 2.50 lakh tons) and 2.49 lakh tons of waste
handling. This waste will be dumped in an area of 0.87 Ha. (i.e., 2.49 /1.8 x 1.25 /20m
height = 0.87) with a maximum height of 20m. During plan period, the dumping will be
carried out in designated area. Afforestation will be carried out along the slopes of the
previous Dumped area over an extent of 0.87 ha.
The rest mineable reserves 59.29 lakh tons will be operated after the Renewal. Later, after
exhaustion of the deposit, the part of worked out pit will be reclaimed by plantation and
part of the rejection will be done on ground dumping. The detailed land use given in
Conceptual plan, Refer Figure 3-3 and 3-4.
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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Figure 3-3 Conceptual Plan A
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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Figure 3-4 Conceptual Plan B
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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3.6. Availability of water its source, Energy/ Power Requirement and Source:
3.6.1 Water Source:
Total water requirement in the mine will be about 112.2 KLD for drinking, spraying (dust
suppression) and plantation. Water will be sourced from nearby village through water
tankers. Detail of water requirement in KLD is given below:
Water Requirement for the Project
Sl. Type of
Service Unit
Quantit
y
Water
Requirement
(LPD)
Water
Requireme
nt (KLD)
No
.
1 Manpower 8 hours shift (1
shifts/day) 99 nos 45 L per person 4.455
2 Green Belt * 3.27 Ha 25,000 L per
Ha 81.75
3 Dust
Suppression 1-2km
4 times
a day 20,000 L 20
4 Make up water for Vehicle Tire Wash ** & for Firefighting *** 6
Total Water Requirement 112 KLD
* Water for greenbelt not required during rainy days (around 40 to 50 days) and on following days (around 40 to 50 days) of the rainy days as the rain water collected from garland drains after necessary treatment will be used for greenbelt development
** For vehicle tire washing one time requirement 100 KL (and daily make up water of 5 KLD)
*** For Fire makeup one time requirement 20 KL (and daily make up water and for mock drills, etc 1 KLD)
3.6.2. Energy/Power Source :
It is proposed to provide the power supply from the DG Set of suitable capacity, which
has to be installed.
3.7. Quantity of Wastes Generated (Liquid and Solid) and Scheme for their
Management /Disposal:
Waste material to be handled for the life of the mine will be about 29.28 lakh tons (i.e. Waste
handling for proved minable reserves) where as 1% of the quantity is considered as Top soil
so left quantity consider for waste accommodation is 28.99 lakh tons. To accommodate this
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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waste material, a total area of 10.10 ha is earmarked, keeping 20m as dump height. (28.99lakh
tons/1.8 = 16.11 lakh cum will require 16.11 x 1.25 (swelling factor) = 20.14 lakh cum volume.
The spread will be 20.14 lakh /20 i.e., 10.07 ha area is required but area earmarked for
Dumping is 10.10 ha (Ref: Annexure - 4). The remaining area will be used for construction of
toe-walls/garland drains all around the dump to protect from wash-off / sliding.
Table 3-3 First five-year wise waste generation in tons will be:
The following table describes the 5-year wise proposals for Land Use Plan as part of the
conceptual Mining Plan (All areas are given in Ha):
Table 3-4 5-year wise proposals for Land Use Plan
Particulars
Area required in Ha during
first five
years
Second five
years
Third five
years
Fourth five
years
After the
Renewal
Mining 13.60 15.59 16.58 23.68 77.35
Dumping 0.73 0.87 0.87 0.87 6.76
****Note: Dump slopes are considered for Afforestation
An area of 174.02 Ha will be under post mining Afforestation/rehabilitation.
3.8. Schematic Representations of the Feasibility which give Information of EIA Purpose:
Detailed schematic representations of the feasibility covering the purpose of EIA will be given
in the Environmental Impact Assessment report.
Years I II III IV V
Waste in tons 43,524 32,983 32,296 54,104 47,484
Co-ordinates
N2440-N
2460
E1070-E
1140
N2420-N
2470
E1060-E
1155
N2415-N
2480
E1050-E
1160
N2410-N
2510
E1045-E
1180
N2400-N
2520
E1040-E
1197
Reduced Level’s in mts 690-710 692-710 693-710 694-710 695-710
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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4. Site Analysis:
4.1. Connectivity:
Existence of Public
Road, Railway
nearby:
All weather road is passing in the applied mining lease
through which applied area is approachable from
Kanubenahalli village located 1 to 1.5 Kms West.
Nearest Railway
station, Sea Port,
Airport.
Ajampura (50km) is the nearest railway station. Mangalore
is the nearest Sea port (280km), Bengaluru Airport
(160km).
Police station and
other facilities
Huliyar (18km) is having all facilities like Police station,
Fire station Hospital, Bank, Post Office, School,
Workshops etc.
4.2. Topography:
A view of Toposheet fallowing features can be observed.
The applied area occupies a hillock range running N NW-S SE with a major mound
continued with plain minor adulatory land towards east.
The Mound comprised of elevation of moderate to steep slopes.
A weathered cart road is passes through the area.
The highest and lowest elevations in the area are having elevation difference of 110m
(i.e, 800m and 690 m above MSL.).
The drainage pattern of the buffer zone is dentritic to sub dentritic in nature. A
seasonal nullah is passing east to west at mid part of the area.
No human settlements within or in the vicinity of the applied area. The nearest village-
Kanubenahalli of 2.15 kms.
For survey purposes a temporary bench mark (TBM) with 745.23 RL is considered at
SW corner of the area.
For proper identification of the area, 3 ground control points have been selected the
details of which area as fallows.
Ground Control
Point
Co-ordinates
RL(mts) Boundary Corner
GCP-01 N 13° 44' 32.7"
E 76° 29' 45.6"
698.91 211 mts NW of BC20
Boundary Corner
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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GCP-02 N 13° 44' 43.8"
E 76° 29' 54.1"
717.56 Boundary Corner- BC12
GCP-03 N 13° 44' 30.5"
E 76° 29' 57.5"
708.23 Boundary Corner- BC13
4.3. Existing Land Use Pattern:
The mining lease area which was sanctioned by director of mines and geology bengaluru in
favour of Sri. T.K. Chandrappa for 20 years lease is almost virgin barren. The vegetation in
the area is almost nil. No perennial rivers/nallahs or springs present in the area. Natural
valleys drain the rainwater. The lease area was part dry barren land and no cultivation
was going on previously.
4.4. Existing Infrastructure:
The proposed lease area is a virgin block and no mining has been undertaken so far. The
various temporary site services proposed to be constructed will be:
1. Office
2. Store
3. Workshop
4. Water Tank
5. First-Aid Center
6. Rest Shelters
4.5. Soil Clasification:
Soil formation is mainly related to the parent rock material, surface relief, climate and natural
vegetation. Animals, insects and man also play an important role in soil formation. Soil type
observed in study area red sandy soil which is derived from parent rock by the process of
weathering & erosion. As per soil Fertility Atlas for Karnataka 2011 the study area major
nutrition’s Ranges PH (6.5-8.5),EC (< 0.8 ds/m), Organic Carbon (> 5%),Phosphorus (> 5
ppm), potassium (> 50 ppm), Sulphur (<10 ppm), Zinc (> 0.75 ppm).
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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4.6. Climatic Data from the secondary Data:
4.6.1. Climatic Condition:
Summer season in Chitradurga it spans from the month of March to May. The maximum
temperature may shoot up to 40°C. In spite of this, summer is usually mild and evenings
are very pleasant. Monsoon Season usually get railfall from the North East monsoon
between October and November. However, these showers are light to moderate. Winter
season from the month of December to February. The temperature during this season
might drop to 12°C.
4.6.2. Rainfall:
The normal annual rainfall in the district based on 30years is 574mm. However, in the last
decade (1996-2005) the district received an average annual rainfall of 631.7mm. Further
analysis of rainfall data (Table indicate that the there was deficient rainfall in the years
2003, whereas the year 2005 received excess rainfall. The taluks of Chellakere &
Chitradurga faced deficit rainfall in the years of 2002 & 2004 as well, most of the other
taluks had deficit rainfall during two successive years 2002 and 2003. Post-monsoon
rainfall had failed in the district during 2001 and 2004. During the year 2003 the pre- and
post-monsoon season, rainfall had failed. Rainfall is lowest in Challakere taluk and highest
in Hosadurga taluk.
4.6.3. Wind Velocity and Wind Direction:
The wind direction at Chitradurga at 8:30 hours in the morning was from South West
West, North with calm period being 11%. At 17:30 hours most prominent wind directions
varied from West, NorthEast with calm periods being at 7%.
The wind velocities at Chitradurga varied from 1 to 19 kmph for an average of 298 days
while it was calm for 38 days. Wind velocities were excess of 20 kmph for 29 days.
However, between the months of October to May, the mean wind speed varies from 8.2
kmph to 9.5 kmph. While from May to September the mean wind speed were higher, from
12.4 kmph to 17.1 kmph.
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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Figure 4-1 Average Rainfall of Chitradurga Region (Year 2000-2012)
Source: www.worldweatheronline.com
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
Pre-Feasibility Report
Ramky Enviro Engineers Limited Page 20
Figure 4-2 Average Maximum and Minimum Temperature of Chitradurga Region (Year 2000-2012)
Source: www.worldweatheronline.com
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
Pre-Feasibility Report
Ramky Enviro Engineers Limited Page 21
Table 4-1 Climatology and Meteorology of Study Region – IMD 1997-2000 (Temperature, Rainfall, Humidity)
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
Pre-Feasibility Report
Ramky Enviro Engineers Limited Page 22
Table 4-2 Climatology and Meteorology of Study Region – IMD 1997-2000 (Wind Direction and Wind Speed)
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
Pre-Feasibility Report
Ramky Enviro Engineers Limited Page 23
4.7. Social Infrastructure Available:
Huliyar (18km) is having all facilities like Police station, Fire station Hospital, Bank, Post
Office, School, Workshops etc.
5. Planning Brief:
5.1. Planing Concept:
(Type of Industries, Facilities, and Transpotation etc) Town and Country
planning/Development authority Classification.
The Proposed lease area is a Virgin land and no mining has been undertaken so far. The
proposed quantity of production is 1.5 lakhs TPA (1.0 lakhs TPA of limestone + 0.5 lakhs
TPA of Dolomite).
It is proposed to drill 12 nos. of Core drill holes to confirm the strike extensions and depth
continuity of the deposits and also to prove the quality / recovery of the deposit zone.
Table 5-1 Details of category wise Total Mineral Resources and Mineral Reserves calculated as explained above, are in Annexure- II & III A, B & C, are given below
Classification UNFC Code
Limestone Dolomite
Remarks
Tonnes (t)
Av. Grade %
Tonnes (t)
Av. Grade %
Total Mineral Resource (A+B)
64,84,394
CaO 44.53
26,01,174
CaO 28.06
Estimated from specific geological evidence
MgO 2.49
MgO 19.07
A. Mineral Reserves
1. Proved Mineral Reserves 111 4,41,584 CaO 44.53
1,75,930 CaO 28.06
2. Probable Mineral Reserves 121 & 122
58,27,184 MgO 2.49
23,25,734 MgO 19.07
Total Mineable Reserves 62,68,768 25,01,664
B. Remaining Resources
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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Ramky Enviro Engineers Limited Page 24
1. Feasibility Mineral Resources 7.5 m barrier, Pit limits slope, etc.
211 20,416 ---
Possibly economical
ly Viable subject to changes in
rules.
2. Pre- Feasibility Mineral Resources
221 & 222
1,95,210 99,510
3. Measured Mineral Resources
331 --- ---
4. Indicated Mineral Resources
332 --- ---
5. Inferred Mineral Resources 333 --- ---
6. Reconnaissance Mineral resources
334 --- ---
Total 2,15,626 99,510
Samples generated by DTH drilling will generally get diluted by minor impurities. By comparison of the average grade of ore arrived by drilling with the grade of surface samples, it may safely assumed that the mined material grade will be more by 1-2 units than the reported grade by drilling.
The mining project will generate direct & indirect employment. About 99 people will get direct
employment.Employment Potential for the proposed mining activity and crushing and
screening plant operation is listed below.
Highly Skilled
Skilled
Semi Skilled
Un – Skilled
5.2. Population Projection:
Due to proposed project around 99 persons will be in the mining activity, they will be mostly
from nearby villages, only few people will be accommodated at the site such as security persons
and emergency staff in rest shelter.
5.3. Land Use Planning:
The mining lease area which was sanctioned by director of mines and geology bengaluru in
favour of Sri. T.K. Chandrappa for 20 years lease is almost virgin barren. The vegetation in the
area is almost nil. No perennial rivers/nallahs or springs present in the area. Natural valleys
drain the rainwater. The lease area was part dry barren land and no cultivation was going on
previously. The proposed land use pattern in the area will be as given in Table 5-2.
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
Pre-Feasibility Report
Ramky Enviro Engineers Limited Page 25
Table 5-2 Govt. Revenue Land used for Mining purposes (Ultimate land use pattern)
S.no Land Use Total in Ha
1. Mining 77.35
2. Dumping 10.1
3. Top Soil Yard 1.09
4. Sub grade Mineral Dump 2.93
5. Crushing+Screening Plant 1.69
6. Mineral Storage 2.79
7. Statutory Buildings 0.32
8. Roads 0.48
9. Future Expansion/Afforestation/Plantation
77.27
Total 174.02
5.4. Assessment of Infrastructure Demand
It is obvious to have some of the essential infrastructures to facilitate the employees. For this
purpose it is planned to have office, store, first-aid center, rest shelter.
5.5. Amenities/ Facilities:
All infrastructure facilities such as education, health facilities and other social facilities are
available at district headquarter due to which the proposed site is facilitated with adequacy in
amenities. As most of the workers are employed from the surrounding villages, they would be
using available medical facilities in the nearest primary health center.
6. Proposed Infrastructure:
6.1. Industrial Area:
It is proposed to establish the temporary structures statutory building having the facilities like
Office, first aid center and rest shelter.
6.2. Residential Area.
No Residential Area Proposed. As Skilled and Unskilled Labour drawn from near by villages.
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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6.3. Green Blet:
Total Unsued land area is 77.3 ha which would be used for Plantation/Afforestation/ Future
expansion. An area of 3.27 ha land has been proposed for the first 5 years plan
afforestation/plantation inside the lease area. Each year around 0.64 ha area will be taken up
for plantation. An average of 1600 saplings will be planted at a spacing of 2 x 2 m per annum.
The species going to be planted are local species as these are having a better chance of survival
in this region.
6.4. Social Infrastructure:
This Project is providing employment to local people directly and indirectly. Indirect
employers are shopkeepers, mechanic, drivers, transporters etc. The lessee will responsible for
providing better social infrastructure benefits such as drinking water, health care measures,
educational facilities, promotion of culture and religious activities in surroundings.
6.5. Connectivity (Traffic and transportation Road/Rail/Metro/Water ways etc)
6.5.1. Availability Of Roads:
All weather road is passing in the applied mining lease through which applied area is
approachable from Kanubenahalli village.
6.5.2. Nearest Railway station:
Ajampura (50km) is the nearest railway station in West.
6.5.3. Nearest Sea Port:
New Mangalore Port, Mangalore (300 km) in West.
6.5.4. Nearest Airport:
Kempegowda International Airport, Bangaluru (220 km) in East.
6.6. Drinking Water Management:
Drinking water for the working men will be met through Water tank mounted on Tractor,
(detachable) and from well near by village.
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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Ramky Enviro Engineers Limited Page 27
6.7. Sewerage System:
No proposal for any wet processing of ore using water in the proposed mining area. Hence,
there is no question of effluent generation. Water shall be used only for sprinkling on haul
roads, dust suppression purposes at Screening Plant/loading, afforestation purposes and
domestic use like washing/drinking etc.
The proposed mining activities may add the pollution load to water of seasonal nallahs within
the mining area, in the form of suspended solids, oil/grease etc. by erosion and wash-off etc.
So it is necessary to take appropriate mitigative action to contain the impact on water quality
6.8. Solid Waste Management:
Dolomitic limestone, Manganiferrous quartzite, Banded Ferruginous quartzite, Phyllite /
Schist and Gneisses are the waste material to be handled during mining. A total area of 10.10
ha has been proposed for dumping site. The area selected for dumping is at the western part
of the lease area. These are barren lands. Dumping will be done in 20m height in this mining
plan period. Locations of the proposed dumping sites with each year’s spread
As per the proposed production and development program, 2.10 lakh tons of waste material
generation will be there during 5 years plan period. Maximum height of the dumps shall be
maintained at 20 mtrs with an angle of repose 30 to 35 degrees and spread of dump shall be
around 7300 sqm, in first 5 years.
During the production and development program of 5 years plan period, around 20% will be
subgrade production with an average of 1.18 lakhtons/annum. This material will be sold to
fertilizer and other industries. Stacking of sub-grade mineral shall be done separately on the
designated area systematically and suitable toe-walls will be constructed around the stacks to
prevent wash-off.
A total of 2.93 ha area are located in applied mining lease area has proposed for stacking the
sub-grade minerals. Height of sub-grade mineral stock shall be maintained at 10 mtrs, in two
stages of 5m each with angle of repose 30 to 35 degrees. This will facilitate rehandling the
stocks without any difficulty to process the ore as and when required.The spread of sub-grade
stock shall be around 29300Sqm for the plan period.
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
Pre-Feasibility Report
Ramky Enviro Engineers Limited Page 28
6.9. Energy/Power Source:
This Screening plant is proposed to run on the power supply from the DG Set of suitable
capacity, which is proposed to install
7. Rehabilitation and Resettlement (R & R) Plan:
No R & R is required as there is no habitations present in the proposed mining area.
8. Project Schedule and Cost Estimation
8.1. Likely Date of Start and Date of Completion
The mining operations will be started after obtaining all necessary statutory clearances from
the required departments.
8.2. Cost Estimation of the Project
Mineable reserves: 87.69 lakh tons (Limestone is 62.68 lakh tons + Dolomite 25.01 lakh tons)
Nature of Deposit: Limestone and Dolomite Production: First five years:
1.18 lakhs tons/ annum (0.84 lakhs tons of Limestone and 0.34 lakhs tons of Dolomite per annum) Fully developed Production after five years: 1.50 lakh tons/ annum (1.00 lakh tons of Limestone and 0.50 lakh tons of Dolomite per annum)
Capital cost: Rs. 60 Crores (Approx for the mining period of 20 years).
Proposed Dolomite & Limestone Mining Project, Kanubenahalli (V), Hosadurga (T), Chitradurga (Dist.), Karnataka State.
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Ramky Enviro Engineers Limited Page 29
9. Analysis of Proposal.
9.1.1. SOCIO-ECONOMIC BENEFITS
There is positive impact on socio-economics of people living in the villages. The
villages in the buffer zone depend upon agriculture.
Mining operations in the subject area has positive impact by providing Job
opportunities. Besides, there is indirect employment in transportation of deposit to
destinations.
Since the reserves of this area are economically viable, their proper utilization will
improve the economic status of the people nearby.
Lessee will provide required Medical Facility to all the employees at the mines and
medical checkup camps to the local villages, contribution of funds for social and
cultural programs etc.,
Hence, there will be a positive impact on socio-economics of people living in the village
Measured Mineral Resources (331)
Sec- Area Influ TF Rec Quantity Area Influ TF Rec Quantity Area Influ TF Quantity Total
tions sqm. Mtr % tons sqm. Mtr % tons sqm. Mtr tons Waste(t)*
J-J' 518 100 2.2 80 91168 255 100 2.2 80 44880 151 100 1.8 27180 55008
K-K' 328 100 2.2 80 57728 201 100 2.2 80 35376 91 100 1.8 16380 35424
K1-K1' 572 100 2.2 80 100672 186 100 2.2 80 32736 90 110 1.8 17820 45108
M-M' 535 100 2.2 80 94160 224 100 2.2 80 39424 92 100 1.8 16560 43884
N-N' 672 100 2.2 80 118272 167 80 2.2 80 23514 109 100 1.8 19620 48622
Total 4,62,000 1,75,930 2,28,046
*Note: Total waste includes 20% of the material handled for ore (mineral rejects)
Indicated Mineral Resources (332)
Sec- Area Influ TF Rec Quantity Area Influ TF Rec Quantity Area Influ TF Quantity Total
tions sqm. Mtr % tons sqm. Mtr % tons sqm. Mtr tons Waste(t)*
A-A' 513 110 2.2 80 99317 890 170 2.2 80 266288 266 150 1.8 71820 146603
B-B' 343 100 2.2 80 60368 1100 100 2.2 80 193600 206 100 1.8 37080 89028
C-C' 579 100 2.2 80 101904 1196 100 2.2 80 210496 286 100 1.8 51480 115380
D-D' 724 100 2.2 80 127424 1307 100 2.2 80 230032 407 100 1.8 73260 146376
E-E' 784 100 2.2 80 137984 1275 100 2.2 80 224400 242 100 1.8 43560 117684
F-F' 785 100 2.2 80 138160 1031 100 2.2 80 181456 316 100 1.8 56880 122256
G-G' 1775 115 2.2 80 359260 1757 100 2.2 80 309232 554 110 1.8 109692 246429
H-H' 1823 100 2.2 80 320848 1406 100 2.2 80 247456 434 100 1.8 78120 194364
I-I' 1689 100 2.2 80 297264 976 100 2.2 80 171776 397 100 1.8 71460 167400
J-J' 1040 100 2.2 80 183040 534 100 2.2 80 93984 297 100 1.8 53460 110124
K-K' 964 100 2.2 80 169664 468 100 2.2 80 82368 258 100 1.8 46440 97992
K1-K1' 1144 100 2.2 80 201344 408 100 2.2 80 71808 225 110 1.8 44550 100422
M-M' 1176 100 2.2 80 206976 512 100 2.2 80 90112 160 100 1.8 28800 89568
N-N' 1425 100 2.2 80 250800 371 80 2.2 80 52237 134 100 1.8 24120 86105
O-O' 1657 100 2.2 80 291632 126 100 1.8 22680 82332
P-P' 2246 100 2.2 80 395296 125 100 1.8 22500 103356
Q-Q' 3826 115 2.2 80 774382 279 100 1.8 50220 208616
R-R' 3888 100 2.2 80 684288 224 100 1.8 40320 180288
S-S' 3453 110 2.2 80 668501 255 130 1.8 59670 196409
T-T' 2026 100 2.2 80 356576 131 100 1.8 23580 96516
U-U' 1246 90 2.2 80 197366 154 100 1.8 27720 68090
Total 60,22,394 24,25,245 27,65,338
*Note: Total waste includes 20% of the material handled for ore (mineral rejects)
CALCULATION OF MINERAL RESOURCES AS PER UNFC
Limestone Dolomite WASTE
Limestone Dolomite WASTE
Annexure-II
PROVED MINERAL RESOURCES(111)
Sec- Area Influ TF Rec Quantity Area Influ TF Rec Quantity Area Influ TF Quantity Total
tions sqm. Mtr % tons sqm. Mtr % tons sqm. Mtr tons Waste(t)*
J-J' 499 100 2.2 80 87824 255 100 2.2 80 44880 151 100 1.8 27180 54324
K-K' 315 100 2.2 80 55440 201 100 2.2 80 35376 91 100 1.8 16380 34956
K1-K1' 548 100 2.2 80 96448 186 100 2.2 80 32736 90 110 1.8 17820 44244
M-M' 503 100 2.2 80 88528 224 100 2.2 80 39424 92 100 1.8 16560 42732
N-N' 644 100 2.2 80 113344 167 80 2.2 80 23514 109 100 1.8 19620 47614
Total 4,41,584 1,75,930 2,23,870
*Note: Total waste includes 20% of the material handled for ore (mineral rejects)
FEASIBILITY RESOURCES (211)
Limestone Dolomite WASTE
Sec- Area Influ TF Rec Quantity Area Influ TF Rec Quantity Area Influ TF Quantity Total
tions sqm. Mtr % tons sqm. Mtr % tons sqm. Mtr tons Waste(t)*
J-J' 19 100 2.2 80 3344 0 100 2.2 80 0 0 100 1.8 0 684
K-K' 13 100 2.2 80 2288 0 100 2.2 80 0 0 100 1.8 0 468
K1-K1' 24 100 2.2 80 4224 0 100 2.2 80 0 0 110 1.8 0 864
M-M' 32 100 2.2 80 5632 0 100 2.2 80 0 0 100 1.8 0 1152
N-N' 28 100 2.2 80 4928 0 80 2.2 80 0 0 100 1.8 0 1008
Total 20,416 0 4,176
*Note: Total waste includes 20% of the material handled for ore (mineral rejects)
CALCULATION OF PROVED AND FEASIBILITY MINERAL RESOURCES/RESERVES AS PER UNFC
Limestone Dolomite WASTE
Annexure- IIIA
PROBABLE MINERAL RESOURCES(121 & 122)
Sec- Area Influ TF Rec Quantity Area Influ TF Rec Quantity Area Influ TF Quantity Total
tions sqm. Mtr % tons sqm. Mtr % tons sqm. Mtr tons Waste(t)*
A-A' 513 110 2.2 80 99317 768 170 2.2 80 229786 266 150 1.8 71820 139136
B-B' 343 100 2.2 80 60368 1028 100 2.2 80 180928 206 100 1.8 37080 86436
C-C' 489 100 2.2 80 86064 1110 100 2.2 80 195360 286 100 1.8 51480 109044
D-D' 625 100 2.2 80 110000 1194 100 2.2 80 210144 407 100 1.8 73260 138744
E-E' 784 100 2.2 80 137984 1188 100 2.2 80 209088 242 100 1.8 43560 114552
F-F' 785 100 2.2 80 138160 1031 100 2.2 80 181456 316 100 1.8 56880 122256
G-G' 1674 115 2.2 80 338818 1757 100 2.2 80 309232 554 110 1.8 109692 242248
H-H' 1730 100 2.2 80 304480 1406 100 2.2 80 247456 434 100 1.8 78120 191016
I-I' 1592 100 2.2 80 280192 976 100 2.2 80 171776 397 100 1.8 71460 163908
J-J' 970 100 2.2 80 170720 534 100 2.2 80 93984 297 100 1.8 53460 107604
K-K' 878 100 2.2 80 154528 468 100 2.2 80 82368 258 100 1.8 46440 94896
K1-K1' 1076 100 2.2 80 189376 408 100 2.2 80 71808 225 110 1.8 44550 97974
M-M' 1093 100 2.2 80 192368 512 100 2.2 80 90112 160 100 1.8 28800 86580
N-N' 1342 100 2.2 80 236192 371 80 2.2 80 52237 134 100 1.8 24120 83117
O-O' 1551 100 2.2 80 272976 126 100 1.8 22680 78516
P-P' 2128 100 2.2 80 374528 125 100 1.8 22500 99108
Q-Q' 3826 115 2.2 80 774382 279 100 1.8 50220 208616
R-R' 3888 100 2.2 80 684288 224 100 1.8 40320 180288
S-S' 3453 110 2.2 80 668501 255 130 1.8 59670 196409
T-T' 2026 100 2.2 80 356576 131 100 1.8 23580 96516
U-U' 1246 90 2.2 80 197366 154 100 1.8 27720 68090
Total 58,27,184 23,25,734 27,05,054
*Note: Total waste includes 20% of the material handled for ore (mineral rejects)
Limestone Dolomite WASTE
Annexure- IIIB
PRE-FEASIBILITY RESOURCES (221 & 222)
Limestone Dolomite WASTE
Sec- Area Influ TF Rec Quantity Area Influ TF Rec Quantity Area Influ TF Quantity Total
tions sqm. Mtr % tons sqm. Mtr % tons sqm. Mtr tons Waste(t)*
A-A' 0 110 2.2 80 0 122 170 2.2 80 36502 0 150 1.8 0 7466
B-B' 0 100 2.2 80 0 72 100 2.2 80 12672 0 100 1.8 0 2592
C-C' 90 100 2.2 80 15840 86 100 2.2 80 15136 0 100 1.8 0 6336
D-D' 99 100 2.2 80 17424 113 100 2.2 80 19888 0 100 1.8 0 7632
E-E' 0 100 2.2 80 0 87 100 2.2 80 15312 0 100 1.8 0 3132
F-F' 0 100 2.2 80 0 0 100 2.2 80 0 0 100 1.8 0 0
G-G' 101 115 2.2 80 20442 0 100 2.2 80 0 0 110 1.8 0 4181
H-H' 93 100 2.2 80 16368 0 100 2.2 80 0 0 100 1.8 0 3348
I-I' 97 100 2.2 80 17072 0 100 2.2 80 0 0 100 1.8 0 3492
J-J' 70 100 2.2 80 12320 0 100 2.2 80 0 0 100 1.8 0 2520
K-K' 86 100 2.2 80 15136 0 100 2.2 80 0 0 100 1.8 0 3096
K1-K1' 68 100 2.2 80 11968 0 100 2.2 80 0 0 110 1.8 0 2448
M-M' 83 100 2.2 80 14608 0 100 2.2 80 0 0 100 1.8 0 2988
N-N' 83 100 2.2 80 14608 0 80 2.2 80 0 0 100 1.8 0 2988
O-O' 106 100 2.2 80 18656 0 100 1.8 0 3816
P-P' 118 100 2.2 80 20768 0 100 1.8 0 4248
Q-Q' 0 115 2.2 80 0 0 100 1.8 0 0
R-R' 0 100 2.2 80 0 0 100 1.8 0 0
S-S' 0 110 2.2 80 0 0 130 1.8 0 0
T-T' 0 100 2.2 80 0 0 100 1.8 0 0
U-U' 0 90 2.2 80 0 0 100 1.8 0 0
Total 1,95,210 99,510 60,284
*Note: Total waste includes 20% of the material handled for ore (mineral rejects)
Annexure- IIIC
Annexure -IV