pre-feasibility renvironmentclearance.nic.in/writereaddata/online/tor/0_0... · 2015. 8. 4. ·...

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EENNVVIIRROONNMMEENNTT CCLLEEAARRAANNCCEE FOR OBM-IV BAUXITE MINE, AREA 7.38 HA, SURVEY NO 330/P, VILLAGE MEWASA, TALUKA KALYANPUR, DISTRICT DEVBHUMI DWARKA, GUJARAT

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11EEXXEECCUUTTIIVVEE SSUUMMMMAARRYY 1.1 Introduction

M/s Orient Abrasive Limited was set up in 1974, in technical collaboration with Carborandum products, Bentley, Czechoslovakia as a venture to manufacture Calcine and Fused Alumina products. The Company is a public limited company registered under company Act, enjoys the position of being the largest producer of Calcine and Fused Products in India.

The mine lease of OBM-IV Bauxite mine over an area of 7.38 ha in survey No.330/P of Mewasa village of Kalyanpur Taluka of DevbhumiDwarka District of Gujarat State and the lease granted to M/s Orient Abrasives Limited vide Government of Gujarat order no. MCR/1577/(O-24)4514-CHH dated 18.06.1979 and lease was executed on 25.10.1979 for a period of 20 years.

The modified mining plan was approved by Indian Bureau of Mines, Udaipur vide letter no.682(23) 509/2007 MCCM(N) UDP dated 7.5.2007. The Mining Scheme was approved by the Indian Bureau of Mines, Udaipur vide their letter no.682(23) (MS-497/2009 MCCM(N) UDP dated 21.08.2009 dated 21.8.2009 for five years upto 2013-14.

After implemented the project, this will also generate much needed employment to the local people. Economy of the area will get a boost and there will be an overall growth of the region in terms of standard of living, education, health and transport.

1.2 Salient Features of the Project

Table 1.1: Salient features of the Project Particulars Details

Project Coordinate Enclosed as Annex 1 Total mine lease area 7.38 ha Production 25730TPA Life of mine 07 years Manpower 36 personsLand-use Government Waste landNearest habitation/town Bhatia is 18.1 km in South Direction Nearest railway station Jagadhri railway station -26 km (SW) Nearest dispensary & Government hospital Yes present in the study area. Educational Facility in the area Yes present in the study area. Water demand & supply Water will be taken from nearby villages through

tankers. The water requirement for mining & allied activities (sprinkling, greenbelt development), drinking and plantation have been estimated to be 11.599 KLD.

Seismic zone Zone IV

1.3Proposed Planning

The mined minerals will be loaded in trucks. The movement of trucks after mineral loading will be through approach roads connecting to tar roads. Mine lease area is well connected to the tar road.


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22 PPRREE--FFEEAASSIIBBIILLIITTYY RREEPPOORRTT 2.1 Introduction

2.1.1 The Project Proponent

M/s. Orient Abrasives Limited (OAL) is a Public Limited Company, incorporated under Companies Act, 1956, having its registered office at 1307, Chiranjiv Tower, 43 Nehru Place, New Delhi, India-110019.

OAL was established as a venture of manufacture calcined and fused alumina products in 1974, in technical collaboration with Karborandum, Bentuerky, Czechoslovakia, by the Rajgarhia Group of Industries. It is a multi-divisional company, having a head office at New Delhi, manufacturing facilities at Porbandar (Gujarat) and Bhiwadi (Rajasthan) and distinction of being ISO-9001 (Quality Management System – QMS) certified. The Company offers a wide range of refractory and monolithic products for the iron and steel industry and enjoys a large domestic and international clientele. An in-house R&D facility supports the division’s product development initiatives.

2.1.2 The Project Background

The lease area of OBM-IV Bauxite mine over an area of 7.38 Ha in survey no. 330/P of village Mewasa, Taluka Kalyanpur District DevbhumiDwarka State Gujarat has been granted to M/s. Orient Abrasives Limited vide Government of Gujarat order no MCR-1577 (0-24)/4514 CHH dated 18.06.1979 and lease was executed on 25.10.1979 for a period of 20 years. Lessee has applied renewal application to state Government on 29.04.1998.

The Modified Mining Plan was approved by Indian Bureau of Mines, Udaipur vide letter no. 682(23)(509)/2007 MCCM(N) UDP Dated 07.05.2007. The Mining Scheme was approved by the Indian Bureau of Mines, Udaipur vide their letter no. 682(23)(MS-497)/2009 MCCM (N) UDP dated 21.08.2009. The present Mining Scheme was approved by the Indian Bureau of Mines, Udaipur, Government of India, vide their letter no. 682(23)(497)/2009 MCCM (N) UDP dated 13.02.2015.

2.1.3 Brief Description of the Nature of the Project

The proposed Bauxite project is for expansion of Production capacity from8586TPA to 25730 TPA ROM. The mine lease is a piece of non-irrigated barren land.

Name of Company

Name of the Lease

Area Survey No. Village Taluka/ District Existing

Capacity Proposed Production Capacity

Orient Abrasives Limited

OBM-IV 7.37 330/P Mewasa Kalyanpur/ Devbhumi Dwarka 8586 25730

This Bauxite Mine the nature of deposit is bedded, mineral bauxite is present in form of bed, which is overlain by a thin cover of Soil, The proposed project entails open cast semi mechanized mining in the mining lease of OBM-IV. As the mining lease was already worked out therefore on the basis of geological data gathered from the working pits, trial pits, ore reserve were estimated.

Category wise reserves of Bauxite are summarized in Table 2.1


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Table 2.1: Category wise Reserves (MT) Name of Company

Name of Lease

Area (Ha.)

Proved Category (Category 111) MT

Probable Category (Category 121/122) MT

Possible Category Resources (Category 222/221) MT

Total (MT)

Orient Abrasives

Limited OBM-IV 7.38 306305 - 139311 445616

Calculation of proved category Reserves (UNFC classification)

Mineral Reserve

Proved category Reserves : 306305 MT

Probable Mineral Reserve : Nil

Total : 306305MT

Remaining Resources

Prefeasibility Mineral Resources : 139311MT

Total : 139311MT

Grand Total : 445616MT

In proposed plan, mining will be carried out by semi mechanized open cast method with the use of drilling and blasting.

2.1.4 Demand-Supply Gap

This is an existing captive mine for supply of high grade material to Orient Abrasive Limited’s Plant located at Porbandar. The plant is under expansion, the Supply and Demand gap is 40%, and the project clearance will further reduce the Demand & Supply gap. Hence demand supply issues whilst important, are considered in the current situation.

2.1.5 Imports v/s Indigenous Production

This is an existing mine for the supply of high grade material to OAL’s plant located at Porbandar and OAL has not imported high grade material yet.

2.1.6 Export Possibility

High grade bauxite from the mine will be used in OAL’s manufacturing unit and Value Addition industry at Porbandar, while low grade will be sold to local consumers only after getting permission from Government of Gujarat.

2.1.7 Domestic / Export Markets

High grade bauxite from the mine will be used in OAL’s manufacturing unit at Porbandar, while low grade will be sold to local consumers only after getting permission from Government of Gujarat.


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2.1.8 Employment Generation (Direct and Indirect) due to the Project

Direct

Mine will work in one shift i.e. general shift only, the likely organization chart for that is as follows:

Name of Mine Employment Name of Leases

OBM-IV


Mining Engineer 1 Geologist 1

Mines Manager 1 Driller 1

Workers 24 Operator 3+2 Helper 3 Total 36

Indirect

Few people would be engaged in providing support services to the mining operation including transportation of ROM, supply of Drinking water, water tanker for Dust suppression etc. The number of such persons is likely to be in the order of ~ 20-30 for each lease area.

Bauxite produced from mine will be processed in OAL plant at Porbandar and final product will be sold to customers for use or further processing. This will generate additional economic demand that could translate into additional employment.


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33.. PPRROOJJEECCTT DDEESSCCRRIIPPTTIIOONN 3.1 Type of Project including Interlinked and Interdependent Projects

The mine is a captive mine for OAL’s manufacturing unit at Porbandar, Gujarat.

3.2 Location (Map Showing General Location, Specific Location and Project Boundary and Project Lay Out with Coordinates)

3.2.1 Location

The mine is located at survey number 330/P, Village Mewasa, Taluka Kalyanpur, District Devbhumi Dwarka, State Gujarat. OBM-IV is approachable road passing through village Ran which is located about 1km north of the tar road connecting village Limbdi with Dwarka. Limbdi is located on the Devbhumi Dwarka- Okha state highway no. 25 and is about 35 km from Khambhalia. The nearest railway station is Bhatia, which is located on Okha- Devbhumi Dwarka- Rajkot-Virgaon broad gauge section of western railway. The nearest sea port is Okha which is about 105km from Mewasa.

3.2.2: Coordinates of OBM-IV Mine Lease

Co-ordinate Latitude Longitude A 22°14’47.60” 69°19’53.53” B 22°14’52.43” 69°19’51.89” C 22°14’54.01” 69°19’57.92” D 22°14’48.74” 69°20’11.53” E 22°14’48.82” 69°20’10.32” F 22°14’48.61” 69°20’8.43” G 22°14’47.99” 69°20’5.54” H 22°14’46.76” 69°20’5.95” I 22°14’46.27” 69°20’4.83” J 22°14’46.72” 69°20’4.31” K 22°14’46.00” 69°20’2.79” L 22°14’45.03” 69°20’2.88” M 22°14’44.41” 69°20’1.75” N 22°14’42.26” 69°20’1.94” O 22°14’42.26” 69°20’0.94” P 22°14’42.71” 69°20’0.25” Q 22°14’42.33” 69°19’59.61” R 22°14’44.58” 69°19’58.88” S 22°14’44.28” 69°19’57.21” T 22°14’45.03” 69°19’56.91” U 22°14’46.18” 69°19’58.49” V 22°14’46.97” 69°19’58.75” W 22°14’47.63” 69°20’0.12” X 22°14’48.04” 69°20’1.75” Y 22°14’50.34” 69°19’59.85” Z 22°14’51.16” 69°19’58.91”

3.3 Details of Alternate Sites Considered and the Basis of Selecting the Proposed Site

No alternate site has been examined, since mine is with OAL since 1979. OBM-IV is granted vide dated 18.06.1979. However, the validity of this block/lease is up to 2030 as per New MMDR Ordinance 2015, Government of India.


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3.4 Size or Magnitude of Operation

Name of Company

Name of the Lease

Area Survey No. Village Taluka/ District Existing

Capacity Proposed Production Capacity


OBM-IV 7.38 330/P Mewasa Kalyanpur/ Devbhumi Dwarka

8586 25730

Project Description with Process Details

The present project aims at the increase production capacity from 8586 TPA (Pre 1994) bauxite RoM to 25730TPA ROM of bauxite at Bauxite Mine with lease admeasuring 7.38 Ha at survey 330/P in village Mewasa, Taluka Kalyanpur, District Devbhumi Dwarka of Gujarat state in order to provide bauxite to Value Addition Plant manufacturing plant of OAL at Porbandar.

The year wise production achieved by the lessee against the actual production proposed to be achieved is given below:-

Year

Proposed as per approved plan Achieved performance plan period Proposed

production in MT

Proposed site

Number of bench for Bauxite

Production achieved

Actual site of work

Number of bench for Bauxite

2009-10 17457 North West Part pit no.1 Two 9214.29 South West

Part pit no.1 One

2010-11 17640 North West Part pit no.1

Two 4833.34 South West Part pit no.1

One

2011-12 18008

North Western Part pit no.2

Two

9169.310

North Western & Eastern Part pit no.2

One

2012-13 17916

Western Part pit no.1

Two

13179.35

Central & North Part pit no.1 & Pit no.3

One

2013-14 17608 North Western Part pit no.1

Two 17579.13

Central Part pit no.2 One

Salient Features of Mode of Working

As per IBM approved mining plan, mining work will be carried out by semi mechanized open cast method. In the proposed mining scheme, the work will be started from north part of the lease area adopting semi mechanized open cast method with use of excavator and Tipper.

OBM-IV Mining Lease:

Year wise Production For The ensuring Five years Period:-

In the Proposed Mining Scheme. The mining will be started form south western part of the lease of part no.1 pit floor area. The bauxite will be excavated by forming one bench of 0.5 M with bench width of 10 m and slope of 70° from vertical. The mining will be done by semi mechanized open cast


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method with the use of excavator and tipper. After complete exploitation of Bauxite the area will be backfilled progressively during Mining Scheme Period based on the quantity of waste generated.

The waste generated during Mining Scheme period will be backfilled for plantation purposes. Since lessee quantified of OB/Top Soil are Generated during Mining Scheme Period, it is proposed to backfill the mined out pit area and the statutory boundary area and the remaining mined out pit will be used as water reservoir.

First Year (2015-16):-

During first year, mining will be carried out in northern south western part of the lease area. The orientation of production face will be north-south direction. The Bauxite present at pit floor in pit no.1 will be mined out by forming one bench of 0.5 m. then the mining will be advanced in northern direction where the bauxite having an average thickness of 4m will be mined out by forming one bench of 4m.Total about 4386m2area will be excavated during first year mining Scheme.

Second Year (2016-17):-

In second year, mining will be carried out in south west part of the lease area. The orientation of face will be north- south direction and advancing east ward direction and advancing east ward direction in continuation with previous year mined out area. The face formed at the end of first will be advanced eastwardly. The bauxite present at pit floor in pit no.1 will be mined out by forming one bench of 0.5 m. then the mining will be advanced in north of pit 1 and the bauxite having an average thickness of 4m will be mined out by forming one bench of 4m. Total about 4971m2areas will be excavated during second year of Mining Scheme.

Third Year (2017-18):-

In Third year, mining will be carried out in south west part of the lease area. The orientation of face will be north- south direction and advancing eastwardly direction in continuation with previous year mined out area. The face formed at the end of second will be advanced eastwardly. The bauxite present at pit floor in pit no.1 will be mined out by forming one bench of 0.5 m. then the mining will be advanced towards north of pit 1 and the bauxite having an average thickness of 4m will be mined out by forming one bench of 4m height. Further mining will be commenced in central part of the area on southern part of pit no.2 pit floor area by developing one bench of 2 m height. Total about 4420 m2 area will be excavated during 3rd year of Mining Scheme period.

Forth Year (2018-19):-

In Fourth year, mining will be carried out in central part of the lease area in pit no.2. The orientation of face will be north- south direction and advancing eastwardly direction in continuation with previous year mined out area. The face formed at the end of Third will be advanced eastwardly. The bauxite present at pit floor in pit no.2 will be mined out in central part of the area at southern part of pit no.2 at pit floor developing one bench of 2 m. Total about 5133 m2 area will be excavated during 4th year of Mining Scheme period.

Fifth Year Mining (2019-20):-

In Fifth year, mining will be carried out in central part of the lease area in pit no.2. The orientation of face will be east-west direction and advancing northern direction in continuation with previous year mined out area. The face formed at the end of forth year will be advanced northerly. The bauxite


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present at pit floor in pit no.2 will be mined out in central part of the area at southern part of pit no.2 at pit floor developing one bench of 2 m height. Total about 5149 m2 area will be excavated during 5th year of Mining Scheme period.

Total area to be mined out in five year plan period is given in Table:

Table: Year wise Excavation for OBM-IV Mining Lease Year Total

tentative Excavation (Cum)

Top Soil (Cum)

OB/SB/IB/(Cum) ROM(Cum) Mineral Reject

ROM/Waste Ratio

Ore (Cum) Mineral reject(Cum)

(15-16) 12606 2314 Nil 10292 Nil 1029 1:0.255 (16-17) 12408 2205 Nil 10203 Nil 1020 1:0.216 (17-18) 12028 1788 Nil 10240 Nil 1024 1:0.175 (18-19) 10266 - Nil 10266 Nil 1026 - (19-20) 10280 - Nil 10280 Nil 1028 - Total 57588 6307 Nil 51281 Nil 5127 1:0.112

Production for Plan Periodfor OBM-IV Mining Lease

A detail of Bauxite production along with the waste generated in the approved five year mine plan is summarized in Table.

Year (a) Volume M3 Tonnage of

ROM(d)

Recovery of Bauxite 90% ROM

in MT dx0.90

Waste 10% of ROM M.T d x 0.10

Production of BauxiteSoil (b)

ROM(c)

High Grade 30% of Prod. In MT e x

0.30(Al2O3>50%) Abrasives &

refractory grade (g)

Low Grade 70% of Prod. In MT d x

0.70 (Al2O3>30%) (h)

(15-16) 2314 10292 25730 23157 2573 6947 16210 (16-17) 2205 10203 25508 22957 2551 6887 16070 (17-18) 1788 10240 25599 23039 2560 6912 16127 (18-19) - 10266 25665 23098 2567 6929 16169 (19-20) - 10280 25700 23130 2570 6939 16191 Total 6307 51281 128202 115381 12821 34614 80767

Life of Mine

Mining will be carried out Mining Block/Lease at a maximum production of 25730 TPA and as per IBM approved Scheme of Mining the life of mine would be TWELVE years. Entire lease area leaving statutory barrier will be mined out in TWELVE years.

OBM-IV Mining Lease:

As per estimated Mineable reserves of 3,06,305 MT of Bauxite available with average annual production proposed of Bauxite is 25640 MT, the balance Mine Life is TWELVE years.

3.6 Conceptual Mining Plan

Ultimate Pit Limit

In the Mining lease area the mineralized limits are determined either by the limit of the mining lease boundary or by the limits of the ore body. Considering the nature of the Bauxite ore zone formation,


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the ultimate pit limit is based on the lease boundary limit and UPL- limits have been duly marked in the Surface geological plan, plate no. 4.

Based on the Balance Reserve available, the life of the mine is 12 years. During mine life period entire lease area leaving statutory barrier will be converted in to three voids, out of those three voids, part of one void will be backfilled and remaining part will be converted into reservoir. The conceptual plan has been prepared up to life of the mine of 12 years only. The lease area of OBM-IV will be converted into three voids having area of 11220 m2, 16683 m2 and 5311m2 respectively and average depth will be about 5.00 m from the surface as shown in conceptual plan plate no. 9.

Stacking of mineral reject and disposal of waste:-

Backfilling will be done in the area winning full thickness of bauxite. The OB and waste generated during scheme period will be backfilled in the mind out area in north part of lease area. The waste generated during five years mining scheme period will be backfilled in mined out area at the time of generation itself hence question of its height and spread does not arise. As volume of voids is much more than material available for backfilling of entire mined out area upto original ground level will not possible. Therefore north part of the area will be backfilled and another part of lease area will be used as water reservoir.

Table: Year wise generation of waste for OBM-IV Mining Lease year Soil vol. in m3 OB vol. in m3 Mineralized Waste in m3

2015-16 2314 - 1029 2016-17 2205 - 1020 2017-18 1788 - 1024 2018-19 - - 1026 2019-20 - - 1028 Total 6307 - 5127

Plantation

50 saplings will be planted every year during five year schemes period and fencing will be done around plantation and working pits.

Year No. of saplings Area m2

2015-16 50 1522 m2 2016-17 50 1466 m2 2017-18 50 1268 m2 2018-19 50 410 m2 2019-20 50 411 m2

3.7 Extent of Mechanization

The mining will be done by semi mechanized open cast mining method with the use of excavator and tipper.

The Bauxite horizon at places being of compact formation, require drilling and blasting which is roughly about 20 % of Bauxite zone for this purpose 1.5 M deep hole will be drilling by jack hammer with compressor and will be blasted by the 25 mm dia and 250 mm long explosive available in the region. The spacing will be kept as 1.0 m and burden will be kept as 1.0 m.

Table: Machinery Required: Excavator and Loading Equipment


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Type Nos. Bucket capacity in M3

Make Motive power HP

Excavator One 0.9 M3 Tata Diesel 110 Haulage/Transport and Drilling equipmentType Nos. Size/ Capacity Make Motive

power HP

Jack hammer One 32 MM Atlas Capco - - Compressor One 100 cft/m Atlas Capco - 110

3.8 Transports

The high grade bauxite will be transported to company’s manufacturing unit at Porbandar using hired trucks.

3.9 Blasting

The mining will be done by semi mechanized open cast mining method with the use of excavator and tippers.

The Bauxite horizon at places being of compact formation, require drilling and blasting which is roughly about 20% of Bauxite zone for this purpose 1.5M deep hole will be drilling by jack hammer with compressor and will be blasted by the 25mm dia and 250mm long explosive available in the region. The spacing will be kept as 1.0 m and burden will be kept as 1.0 m.

The broad parameters are as under:-

1) Spacing - 1.0 m 2) Burden - 1.0 m 3) Depth - 1.5 m 4) Diameter of hole - 32 mm 5) Explosive per wise - 0.375 kg 6) Power factor - 10 MT/ kg 7) No. of holes blasted per round - 10 holes as per round 8) Maximum hole blasted per day - 10 holes in one round only.

3.10 Raw Materials Required along with Quantity likely Source, Marketing area of Final Product mode of Transport of Raw Material & Finished Products.

Raw Materials

Proposed project is mining of ROM for recovery of high grade bauxite for captive use in OAL’s plant located at Porbandar.

Marketing

Company has got lease for its captive consumption. So high grade material is completely used for companies own plant situated at Porbandar. The low grade which lessee get with abrasive and refractory grade is dumped separately & lessee sale it when get permission from state govt.

Table: Market Assessment Closing stock of material Material will sale from the ex-mines itself Buyers Cement companies, export through third party Maintenance of competitive pricing Price of material decided as per market conditionRe-negotiation option Material will sale only if getting profit, price is


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negotiable according to market & relation with buyer

Price of Material The cost of production of bauxite is 200/t for low grade and Rs 310/t for high grade Low Grade High Grade Exploration = Rs. 10/t Rs 10/t Mining cost = Rs 170/t Rs 170/t Sorting = Rs 20/t Rs 122/t Total = Rs 200/t Rs 302/t Demand on market condition, but estimate as; cost of production + royalty paid to govt. + depreciation of infrastructure used + profit margins. Low grade material sold through GMDC only low grade bauxite is saleable presently PMV/Sale value of low grade material ranging Rs. 350-Rs. 550, depend on percentage of alumina.

Volume Closing stock of material

Mode of Transport

Bauxite will be transported by tractor to stacking and sorting ground. High grade bauxite will be transported by hired /owned truck to company’s manufacturing unit at Porbandar. Low grade bauxite will be stacked separately.

3.11 Resource Optimization / Recycling and Reuse Envisaged in the Project

The following will be done

• The mineralized waste generated during the mining period will be backfilled in order to reduce the change in land cover or topography of the area. This backfilled area will be used for greenbelt development

• Complete backfilling is not possible so a part of mine out area will be used as water reservoir and stored water will be used for watering the plantation and for dust suppression. In addition to this water stored in mined out pits will be used by farmers and villagers in nearby area thus reducing the ground water dependency.

• Mine will be worked only in day time (8 hr/ day) and around 36 persons will work, therefore the domestic waste generated will be low and it is possible to recycle. As it doesn’t require electricity because working will be only in Day time.

3.12 Availability of Water its Source and Energy/Power Requirement

Water

For domestic use water will be supplied by the means of tankers from the nearby village. For greenbelt development and dust suppression water stored in mined out pits will be used. For domestic purpose: 1.62 KLD For dust suppression: 9.454 KLD For plantation: 0.525 KLD


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Fuel/Power Requirement

The mine will be worked during an eight hours shift i.e. during day time only and hence no electricity is required for lighting. Diesel, ̴ 3 lit/hr will be used as fuel for running pump for dewatering in rainy season that too for some time.

3.13 Waste Generation and Management

Nature of Waste & Rate of yearly generation

In the proposed mining scheme the OB is likely to be generated during scheme period will be Soil and will be spread on backfilled area.

The waste that is likely to be generated will be in the form of associated clay with the bauxite horizon as mineral waste which is below the threshold grade, which has no sale value. That will be backfilled in mined out pits.

Quantity of Waste

The waste generated during scheme period will be as under:-

Year Soil Volume in M3 Volume of Waste (in M3) 2015-16 2314 1029 2016-17 2205 1020 2017-18 1788 1024 2018-19 - 1026 2019-20 - 1028 Total 6307 5127

Selection of Dumping Site

In the proposed mining scheme, it is proposed that the waste generate during scheme period will be backfilled simultaneously in mined out pits as shown in plat no. 6 of year wise Development Plan. The top soil will be used for spreading on the back filled area for plantation purpose and on the area adjacent to backfilled area in pit no. 2 on south central part of the lease area. Part of mined out land will be used as water reservoir.

Method of Dumping & Maximum Height and Spread of dumps

Backfilling will be done in the in the area after winning full thickness of bauxite. The OB and waste generated during five years scheme period will be backfilled in the mined out area in north part of the lease area. The waste generated during five year mining scheme period will be backfilled in mined out area at the time of generation itself hence question of its height and spread does not arise. As volume of voids is much more than material available for backfilling of entire mined out area upto original ground level will not possible. Therefore west part of the area will be backfilled and another part of the lease area will be used as water reservoir.

Table: Extent of Backfillingfor OBM-IV Mining Lease

Year Extent of Backfilling

Total Backfilling Material (m3)

Area to be Backfilled (m2)

Avg. height of backfilling

2015-16 3806 1522 2.5 2016-17 3666 1466 2.5


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Year Extent of Backfilling

Total Backfilling Material (m3)

Area to be Backfilled (m2)

Avg. height of backfilling

2017-18 3170 1268 2.5 2018-19 1026 410 2.5 2019-20 1028 411 2.5 Total 12696 5077 2.5

Liquid Waste Management

Sewage

Sewage will be disposed of in soak pit at site.

Schematic Representation of Feasibility Drawing which gives Information for EIA Purpose

Mining plan plates are attached along with pre-feasibility report.


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44 SSIITTEE AANNAALLYYSSIISS

4.1 Connectivity

OBM-IV is approachable only by a Kaccha road. The village Mewasa is approachable by a kachha road passing through village Ran which is located about 1km north of the tar road connecting village limbdi with Dwarka. Limdi is located on the DevbhumiDwarka- Okha state highway no. 25 and is about 35km from Khambhalia. The nearest railway station is Bhatia which is located Okha-DevbhumiDwarka-Rajkot-Virgaon broad gauge section of western railways. The nearest sea port is Okha which is about 105km from Mewasa.

4.2 Land Form, Land Use and Land Ownership

Lease is granted to M/s Orient Abrasives Limited. Existing land use and proposed landuse after scheme period is given in Table:

Table: Existing and Proposed Land Use for OBM-IV Mining Lease:

Head Area put on use at start of plan (Ha.)

Additional area requirement during plan period (Ha.)

Total area (Ha.)

Area under mining 2.0352 2.4052 4.4404 Storage for topsoil - - - Overburden/ Dump - - - Mineral Storage 0.3145 - 1.3914 Infrastructure (Workshop, Administrative building etc) 0.0032 - 0.0032

Roads 0.1085 - 0.1085 Railways - - - Greenbelt 0.2479 0.0825 0.3304 Tailing Pond - - - Effluent Treatment Plant - - - Mineral Separation Plant - - - Township area - - - Others to specify settling tank - - -

Grand Total 2.7093 3.5646 6.2739

4.3 Topography

The lease area is having north south trending low ridges of bauxite in eastern side and remaining area is almost plain ground sloping towards west. The area is covered by very scanty vegetation, mostly babool bushes grown over barren stony wastelands. The area is not covered by any watercourses in form of river, natural nallah etc.

No permanent drainage course exists in the area. It is an active mining area, but crops like Bazara, groundnutetc are cultivated during monsoon in nearby agriculture land. Maximum yield per hectares of bazaar and groundnut is around 2500 kg. The nearest human settlement is in Virpur village at a distance of 1.0 km.

The entire lease area is covered under soil. Bauxite is present below thin cover of soil& clay of thickness of 1m. Bauxite is exposed in pit section. In general thickness of bauxite is 4.5 m. Recovery of high grade Bauxite is 30% of production in some pockets. In general the high grade is


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30% & low grade (Al2O3 upto 30%) is70% of production. Recovery percentage of bauxite is 90% of ROM based on the result of excavation done so for in the area.

4.4 Geology of the Mine Lease

The area aroundMewasa,Virpur,Nandana, MotaAsota, Kenedy, and Ran Village exposes bauxite as segregated pocket within laterite or horizontal bedded bauxite deposit within laterite or altered clay. The other rock type exposed in the region are trap rocks, limestone and lithomarge clays. The limestone belonging to Gaj beds series is overlying the laterites. The sequences of formation ranges from early Eocene to recent in age. The Stratigraphic sequence of the lease area is shown in Table 0.1.

Table 0.1: Stratigraphic Sequence in the mine Area Formation Thickness in Meter Topsoil& Clay 1 m Bauxite 4.5 m Lithomergic Clay -

4.5 Existing Land-use Pattern (agriculture, non-agriculture, forest, water bodies (including area under CRZ)), shortest distances from the periphery of the project to periphery of the forests, national park, wild life sanctuary, eco-sensitive areas, water bodies (distance from the HFL of the river), CRZ. In case of notified industrial area, a copy of the Gazette notification should be given

The lease area granted is a Private land, it is a piece of barren land, and no forest land is involved in the area. Existing land use pattern of the site along with the proposed one is given in Error! Reference source not found..

Details regarding to the other ecological and important areas are provided in Table 0.2.

Table 0.2: Important Features and Sensitive Ecological locations for OBM-I Mining Lease:

Sl.No. Feature Name From Project Site Distance (km) Direction

1 Forest Land - - - 2 National Park Marine National Park - -

3 Wild Life Sanctuary Marine Sanctuary 4.8 km (OBM-IV) North

4 Water Body Sea ~4.7 km North

5 CRZ Zone Tidally influenced water bod - -

6 Nearest Railway station Bhatia ~18.1km SSW

7 Airport Jamnagar ~73.9 km East 8 Highway State Highway no 25 ~9.2km South

4.6 Existing Infrastructure

There is a Mine office, Canteen, First Aid room, Rest Shelter, Store, etc. present at the mine site. Apart from this there is no other infrastructure present in the study area.

4.7 Climatic Data from secondary sources

The climate in the region is characterized by a hot summer and general dryness except in the southwest monsoon season. The year may be divided into four seasons. The cold season from


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December to February is followed by the hot season from March to May. The period from June to September is the Southwest monsoon season. October and November constitute the post-monsoon or retreating monsoon season

Temperature1

The period from March to May is of continuous increase in temperatures. May is generally the hottest month with a mean daily maximum temperature of 44.5˚C and mean daily minimum of about 24.8˚C. The weather is intensely hot in summer and on some days the day temperature may reach up to 40.2˚C.

From November, both day and night temperatures begin to decrease rapidly. January is generally the coldest month with the mean daily maximum temperature at about 26.6˚C and mean daily minimum at about 10.6˚C. On such occasions, the minimum temperatures sometimes drops down to 6-7˚C.

Wind1

Long term wind direction is presented in Table. During June to September, that is during the monsoon season wind blows mostly from south-west. During the period from October to February, wind mostly blows from north-east. During March to May wind mostly blows from west direction

Table 0.3: Month wise Predominant Wind Direction-Jamnagar Predominant Wind Direction

First Predominant Wind Direction

Second Predominant wind Direction

Third Predominant wind Direction

Month Mor Eve Mor Eve Mor Eve January NE N E NE Calm NW February Calm N NE NE/W/NW E E/Calm March SW W W NW Calm N April W W SW NW NW N May W W SW NW NW SW/N/Calm June SW W W NW S SW July SW W W SW S NW August SW W W SW/NW S S/N September SW W W NW NW/S SW October Calm NW SW N W W November Calm N E NE NE NW December NE/E N Calm NE SE NW

Rainfall1

The distribution of rainfall in the Jamnagar region, which includes the study area, is uneven. Annual rainfall in the region is 540.2 mm. About 91% of the annual rainfall in the region is received during the southwest monsoon months i.e. June to September. July is the rainiest month. Maximum rainfall in any one month was recorded in the month of August in year 1953 which was about 861.8 mm

1

1 Indian Meteorological Department (IMD), Long Term Climatological Tables (1961-1990), Jamnagar (A)


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Cloud Cover1

Long term cloud cover information is presented in Table Error! No text of specified style in document.-1.

Table Error! No text of specified style in document.-1: Long Term Cloud Cover Information-Jamnagar

Month Cloud Amount No. of Days with Cloud Amount

(All Clouds) OKTAS No. of Days with Cloud Amount (Low Clouds) OKTAS

All Clouds

Low Clouds 0 T-2 3-5 6-7 8 0 T-2 3-5 6-7 8

January 1.3 0.2 17 8 4 2 0 29 1 1 0 0 1.1 0.1 17 8 4 2 0 28 3 0 0 0

February 1.5 0.4 15 7 4 2 0 24 3 1 0 0 1.1 0.2 16 7 4 1 0 24 4 0 0 0

March 2.0 0.8 13 8 6 4 0 22 5 3 1 0 1.3 0.2 14 10 5 2 0 25 5 1 0 0

April 2.3 1.2 8 8 10 4 0 15 9 5 1 0 1.5 0.3 13 10 5 2 0 21 8 1 0 0

May 2.7 2.5 5 8 16 2 0 6 9 14 2 0 0.8 0.5 17 11 2 1 0 19 11 1 0 0

June 4.6 3.2 0 4 15 9 2 1 10 17 2 0 3.6 2.6 2 10 9 7 2 4 12 11 3 0

July 5.8 3.3 0 2 7 17 5 2 10 15 4 0 5.9 4.1 0 2 7 16 6 0 5 20 6 0

August 6.1 3.3 0 2 6 16 7 2 9 16 4 0 5.9 3.8 0 2 7 16 6 1 7 17 6 0

September 3.6 2.2 1 10 10 8 1 3 16 9 2 0 3.6 2.3 2 11 9 7 1 3 16 9 2 0

October 1.6 0.8 11 12 6 2 0 19 9 3 0 0 1.5 0.9 9 15 5 2 0 13 16 2 0 0

November 1.5 0.4 14 9 3 3 1 24 4 2 0 0 1.4 0.5 14 10 3 2 1 23 6 1 0 0

December 1.4 0.1 13 11 5 2 0 29 1 1 0 0 1.4 0.1 15 9 5 2 0 27 3 1 0 0

The area remains cloudy between June - September, which is the active period of the monsoon season.

Humidity1

Most humid conditions are found in the monsoons. Mornings are more humid than evenings and humidity ranges from a high of 78-87% in monsoon mornings to a low of 37-40% in winter evenings. During post-monsoon season, in morning humidity remains between 67-77 % and in the evening it remains between 42-49%.

Table Error! No text of specified style in document.-2: Average Meteorological Conditions at IMD Jamnagar

Month Mean Daily Temperature Rainfall (mm)

Monthly Total No. of Rainy

days Relative Humidity

(%), Morning

Relative Humidity

(%), EveningMax Min

January 26.6 10.6 1.3 0.2 70 37 February 28.8 12.7 2.4 0.2 73 37 March 32.7 17.2 1.6 0.1 77 40 April 35.3 21.3 0.0 0.0 79 48 May 36.3 24.8 2.2 0.3 75 57 June 35.6 26.6 93.5 3.5 78 64


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Month Mean Daily Temperature Rainfall (mm)

Monthly Total No. of Rainy

days Relative Humidity

(%), Morning

Relative Humidity

(%), EveningMax Min

July 33.1 25.8 193.4 7.2 84 71 August 31.5 24.7 160.8 5.9 87 74 September 32.2 23.4 45.1 3.2 85 69 October 34.4 21.1 25.4 0.9 77 49 November 31.9 16.8 13.9 0.7 67 42 December 28.0 12.4 0.6 0.0 66 40 Total / Mean 32.2 19.5 540.2 22.2 77 52

4.8 Social Infrastructure

The lease proposed for mining is with the same lessee since 1979 and mining was carried out since then. The entire lease area is designated as Private land and has no vertical development over it except mine office.

There is no social infrastructure available at site. Bhatia which is about 20km from mine site have all kind of facilities available.


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55 PPLLAANNNNIINNGG BBRRIIEEFF 5.1 Planning Concept

Type of Industry: Mining of Bauxite Facilities: Drinking water, first aid, mine office, rest shelter and store. Transportation: Bauxite will be transported through trucks Town and Country Planning Development Authority Classification: not applicable, since this is a mining project

5.2 Population Projection

Not applicable since the project entails mining of bauxite on government granted lease area.

5.3 Land-use Planning

As mentioned in Section 2.3.2 above.

5.4 Assessment of Infrastructure Demand

A temporary rest shelter for labour will be constructed at mine site. A water tank (capacity of 500 liters) will be constructed for storing drinking water. Haul road is well maintained and water sprinkling will be carried out time by time in order to maintain the road condition.

5.5 Amenities / Facilities

Facilities for drinking water and first aid will be provided in the mine office and an office-cum-rest shelter already existing in the lease area.


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66 PPRROOPPOOSSEEDD IINNFFRRAASSTTRRUUCCTTUURREE 6.1 Industrial Area (Processing Area)

Not applicable.

6.2 Residential Area (Non-Processing Area)

Not applicable.

6.3 Greenbelt

According to approved modified mining scheme it was proposed to plant 50 sapling every year. Plantation will also be carried out along the road and statutory barrier, and saplings of Neem, Gulmohor,Pipal, Paraspipal will be planted. The year wise area to be reclaimed by backfilling and plantation details is as under.

6.4 Social Infrastructure

Discussed in Section Error! Reference source not found..

6.5 Connectivity (Traffic and Transportation Road / Rail / Metro / Waterways)

As per Section Error! Reference source not found.

6.6 Drinking Water Management (source & supply of water)

Discussed in Section 2.2.12

6.7 Power Requirement and Supply / Source


6.8 Industrial Waste Management


6.9 Solid Waste Management


6.10 Sewage System



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77 RREEHHAABBIILLIITTAATTIIOONN AANNDD RREESSEETTTTLLEEMMEENNTT ((RR&& RR)) PPLLAANN The project area is a government waste land. So there is no need to require R&R study.


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88 PPRROOJJEECCTT SSCCHHEEDDUULLEE AANNDD CCOOSSTT EESSTTIIMMAATTEESS 8.1 Project Schedule

The mine lease is working site of OAL however; OAL will start production at proposed rate only after obtaining necessary clearance from Central and State Government

8.2 Estimated Project Cost along with Analysis in Terms of Economic Viability of the Project

Estimated cost of the three projects would be around Rs.58.5 lacs only. This cost includes the project expenditure towards the laterite and bauxite mine. The mine has been sanctioned by the Government for captive consumption only and not for sale of products; hence the profitability factor does not arise at this stage. The cost break-up is given in Table 8.1.

Table Error! No text of specified style in document.: Cost of the Project Sl. No. Particulars Amount (lacs)

1 Land development 2.00

2 Building Site office 5.00

3 Plant & Machinery, Safety equipments& tools 5.00

4 Advance to labour& transport contractor 5.00

5 Preliminary & Pre-operative expenses 5.00

6 Professional Expenses& Legal expense (MoEFCC) 10.00

7 Working Capital Margin 25.00

8 Environment protection cost and Other Miscellaneous Fixed Assets 1.50

Total 58.5


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99 AANNAALLYYSSIISS OOFF PPRROOPPOOSSAALL ((FFIINNAALL RREECCOOMMMMEENNDDAATTIIOONNSS)) 9.1 Financial and Social Benefits with Special Emphasis on the Benefit to the Local People

including Tribal Population, if any, in the Area

Critical analysis of the existing socio-economic profile of the area vis-à-vis its scenario with proposed project activities identifies the following:

About 36 miners will be engaged in mining activities for the project and about 20 people for ancillary activities.

The proposed activities shall generate indirect employment in the region due to the requirement of workers in supply auxiliary such as higher machinery service and Ore Transport service afford from the ancillary works, which would marginally improve the economic status of the people.

Further the additional benefits from the downstream units such as iron industry, steel industry, cement plant, and metallurgical industry also add value to the society.

CSR Activities

• Fodder at Gaushala • Stationery to School • Employment to Locals • Village Development • Drinking Water • School library • Computer Lab

pre-feasibility renvironmentclearance.nic.in/writereaddata/online/tor/0_0... · 2015. 8. 4. ·...

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