ENVIRONMENTAL MANAGEMENT PLAN
Of
Jakara Stone Quarry
In Village Jakara,
Dist.- Ganjam.
[Production Capacity 2700(max.) cum of ROM/Annum]
FOR
Sri Ganapati Bhuyan
At- Kusunpur, P.o- Mardamekha, P.S- Kodala, Ganjam.
JULY 2016
Centre For Envotech and Management Consultancy Pvt. Ltd. (AN ISO: 9001: 2008 and 18001: 2007 certified company, empanelled with SPCB, odisha) QCI ACCRIDITED “A” CATEGORY CONSULTANT ORGANISATION Regd Off: N5/305, IRC Village, Bhubaneswar, Odisha Tele: 0674 - 2360344, E- mail: cemc_consultancy @yahoo.co.in, [email protected] CEMC Website: www.cemc.in EMP of Jakara Stone Quarry Project
1.0 Introduction
The major need of the building stone is due to its high compressive strength and
durability (among the hardest, dimensional and structural stones) it can be effectively the
vagaries of nature. Fined-grained granite is employed for ornamental and monumental
work as well as for inscription purposes. The mineral-rich colors, hardness and density
make it useful for many applications. Polished slab and tiles are used in countertops,
flooring, retaining walls and landscaping around a center fountain/ pond, staircase and
many other design elements (residential and commercial applications). It is also known
as the maintenance free stone. The proposed mining project will fulfill its end uses in
buildings and construction, bridges, paving, monuments and many other exterior
products.
The lease area of Jakara Stone Quarry covers 40.781 acres or 16.503 hectares in
village Jakara under Polasara Tahasil of Ganjam district, Odisha. The area under
reference was granted in the favor of Sri Ganapati Bhuyan by the order of competent
authority on 01.12.2015 for 5 years from 2015-16 to 2019-20. Occurrence of workable
deposit of granite as road metal within the area has been proved by studying the
exposed litho-units present within the lease area. The lessee proposes to study the road
metal to the public as per demand as well as to use in his own unit.
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1.1 Brief Description of the Project & Project proponent:
Sri Ganapati Bhuyan as proprietor, having sound financial background and has experience in mining and marketing of road metals. Thus, he intends to mine stones aggregates which are occurring in Jakara Village of Ganjam district. The Tahasildar,
Polasara vide letter no. 8052, dt 1.12.2015 has asked Sri Ganapati Bhuyan to submit the approved mining plan and Environmental Clearance towards settlement of lease of
Jakara Stone Quarry over 16.503 ha. for a period of five years from 2015-16 to 2019-20 as he is the highest bidder in respect of the said lease area. So the lessee with an intention of producing 2700 cum of ROM /annum has approached SEIAA, Odisha for granting Environmental Clearance.
The ML area is completely barren without crops, rock exposures and has couple of small hillocks. The leasehold has an altitude variation from 48m AMSL to 92m AMSL. The area is devoid of any forest land and comes under Govt. Waste Land kissam. There no seasonal or perennial nala in the proposed area.
Table 1: Description of the Project
S. No. Particulars Details
1. Nature of the Project Jakara Stone Quarry Project
2. Lessee Sri Ganapati Bhuyan, At - Kusunpur, PO -
Mardamekha, P.S – Kodala, Dist. – Ganjam, Odisha.
Size of the Project
3. Mining Lease Area 40.781 Acres /16.503 Ha.
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4. Production Capacity 2700 cum of ROM /Annum (2160 cum of road
metals /annum & 540 cum of Rejects /Annum)
5. Period of Mining 2015-16 to 2019 -20
Project Location
6. Village Jakara
7. Tehsil Polsara
8. District Ganjam
9. Toposheet No. 73-A/14
0 0 10. Latitude 19 39’ 15.50” N to 19 39’ 22.00” N
0 0 11. Longitude 84 47’ 24.50” E to 84 47’ 42.00” E
12. Nearby Villages Jakara
13. Sanctuaries /National Baisipalli Sanctuary located 75 km from the lease
Parks area.
15. NH /State Highway SH 130 (passing through Boirani) is located at a
distance of 8.7 km from the lease area.
16. Archeological Sites Jougarh (Purusattampur) located 35 km from the
lease area.
17. Railway station Nearest Railway is 11km from the lease area.
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1.2 Reserve
Jakara Stone Quarry is the granted Lease area in favor of Sri Ganapati Bhuyan showing an undulating topographical features having elevation difference of 48m to 92m. A major part of southern and central Odisha is occupied by the Eastern Ghats mobile belt constituted of rocks types belonging to Eastern Ghats Supergroup comprising metasediments, charnockite and its varients and migmatitic granitoid. The rock is granite gneiss in places, granite gneiss is formed after the grnitiation of charnoockite and the quarry portion is enclaves of the granite gneiss. That forms a part of the Eastern Ghat
Super Group of rocks being represented by charnockite. But the rock is intensely jointed and fractured. Inconsistent color variation, inhomogenity of mineral constituents, non- uniform grain size and closed spaced joints and fractures render the rock unsuitable for its consideration for decorative purpose. The occurrence is reported within the lease area, so there is no alteranitive use of this rock other than building and road metal.
The reserve has been estimated based on surface exposure of area by cross sectional method. The proved reserve has been taken from the lower level of exposure of rock body which varies from 2m to 12 m. Probable limit has been estimated by taking depth of
3m below each other respectively from the lowest altitude where road metal is exposed within the lease area. The total geological reserve of the stone within the lease area is
15,44,000 cum. The mineable reserve has been calculated to be 9,20,480 cum by considering ultimate pit slope of the quarry and leaving 7.5m from the lease boundary.
20% of the total volume excavated is considered as waste. So, 2700 cum is estimated to be the waste to be generated during the plan period.
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Table 2: Reserve of Road metal
Geological Reserve Mineable Reserve
3 3 Proved 13,52,000 m 8,03,680 m
3 3 Probable 1,92,000 m 1,16,800 m
3 3 Total 15,44,000 m 9,20,480 m
1.3 Mining Details
Open cast semi-mechanized of mining will be adopted in single shift during the mining operation within the plan period involving drilling & blasting. Height and width of the
0 benches are proposed to be 3m with 80 as overall bench slope. Drilling is proposed to be carried out by DTH drill with compressor. Development or excavation will be carried out by both drilling & blasting and use of rock breaker. Shorthole blasting will be carried out with 3m burden and spacing. The monthly consumption of explosives will be 45 Kg of
3 explosive by taking 6 Kg/t powder factor and 1.5 t/m bulk density of rock.
After blasting the broken materials will be excavated by crowbar & spades. Then the boulders will be supplied to nearby crushers, who will make the boulders into suitable size for use in road making and civil construction. The rock fragments which shall be generated during mining has been taken as mining loss shall be kept separately as earmarked in the plan. Periodically these will be used in road construction and maintenance within the lease area and existing public road of surrounding areas.
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Present proposal is to develop quarry towards North-Western part of the lease area. At the end of the plan period or the period of concession the quarry floor level will be at
62 m from the Mean Sea Level (MSL) and the quarry will spread over an area of 0.6 ha.
Waste materials to be generated during the plan period are proposed to be dumped over non mineralized zone in the North-Western part of the lease covering an area of 0.02 ha.
During the mining operation there is no chance of top soil generation as the area is hilly in nature.
Table 3: Land Use Pattern
Description End of Plan
Period
Area under Excavation 0.6 ha
Waste Dumping area 0.02 ha
Mineral stack NIL
Road 0.2 ha
Area for Plantation 0.024
Safety Zone 1.2 ha
Sub Total 2.044 ha.
Undisturbed 14.459 ha
Total 16.503 ha.
The proposed stone mining shall engage 1 supervisory staff, 1 statutory personnel and 8 labourers. Local people shall be given preference in employment. 240 saplings of
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Acacia, Osta, Neem, Mango, Chakunda, Jhaun, Su babul, Karanja and Ata are proposed to be planted on the safety zone (area having soil alluvium).
2.0 ANTICIPATED ENVIRONMENTAL IMPACTS AND MANAGEMENT PLAN
In order to minimize impacts of mining on environmental parameters and to maintain it within the prescribed limits of CPCB /SPCB, an Environment Management Plan (EMP) has been prepared. This will help in resolving all environmental and ecological issues likely to cause due to mining in the area. Environment Management Plan, which is to be implemented in the project has detailed under the following heads:
Land use pattern Air Environment Water Environment Noise Environment Solid waste Management Soil Environment Biological Environment including Plantation Development Occupational Safety and Health 2.1. Land Use Pattern
The mining activity at Jakara stone quarry will be limited to core zone only. The proposed lease area is Govt. waste land kissam. Hence no impact on agriculture, vegetation or wildlife is expected due to the proposed stone mining activity. Waste
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generated from the mine will be dumped temporarily over 0.02 ha which will be compacted by tippers and excavators.
2.2 Air Environment
The major cause of air pollution in the open cast mining is mainly caused due to generation of dust arising from mining activities. In case of this opencast mining operations drilling, blasting, mining extraction, loading and unloading, movement of vehicles on haul roads, dumping, etc are expected to generate airborne fugitive dusts.
The mining operation of Jakara stone quarry involves mostly semi-mechanized method with drilling & blasting, hence the generation of the dust will be the main pollutants. The generation of SO2 and NOx is mainly contributed by the vehicular traffic and only 1 tipper
& 1 tractor will be involved in transportation. There are more chances of spreading of dust particles to the nearby residential areas; since these operations will be carried out at about 0.9 km from the village Jakara in Western direction. Hence the impact of dust pollution on human population will be more. It can be predicted that the dust nuisance will be localized only.
The preventive measures are suggested for following activities to control air pollution:-
2.2.1 During Drilling Operation:
Dust emanated during drilling operation could be reduced by
. Providing drills with dust arrester or collector. . Proper maintenance of drill bits.
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. Sprinkling of water during drilling operation. . Dust generation would also be reduced by using sharp drill bits for drilling holes
and drills with water flushing system.
. Drill operators will be provided with mask, if necessary, to minimize the impact of
air pollution on the workers.
2.2.2 During Blasting Operation:
Heavy blasting will not be done; only short hole blasting will be done. Generation of dust during blasting would be minimized by taking the following measures;
. Proper burden and spacing of blast hole. . Proper charge per delay.
2.2.3. Loading and Transportation:
To minimize the adverse impact on air quality due to loading /unloading and transportation the following measure are proposed:
. The unmetalled service roads are proposed to be metalled or adequately
compacted before being put into use.
. Stones shall be transported by properly stacking and covering in the trucks to
avoid spillage & generation of dust.
. Continuous cleaning of haul roads & pot holes will be done regularly. . Water sprinkling during loading, unloading and transportation in the haul roads.
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. All the fossil fuel consuming vehicles & equipments shall be properly maintained
as per the guideline of the manufacturer to keep the SO2 & NOx level within the limit. . No Pollution Vehicle (NPV) Certificate will be obtained for vehicles engaged in the
mines.
2.2.4 Dumping:
The smaller rock fragments which shall be generated during blasting shall be considered as mining loss & shall be kept separately over 0.02 ha as earmarked in the plan.
Periodically these will be used in road construction and maintenance within the lease area and existing public road of surrounding areas.
2.2.5 Haul Road:
Haul roads are major sources of fugitive dust in a mine. However, the area is approachable from Polasara which is located at a distance of 9km in North-West direction. To reduce the problem of dust generation from haul roads, the following actions will be taken up:
. The prevailing practice of construction of haul roads with the layers of hard stones
overlaid by laterite fines and subsequently compacted by road rollers in
surroundings areas will be continued. . These haul roads will be made compact and water spraying will be done in a
number of runs using only a small quantity of water each time just sufficient to wet
the surface.
. Ensuring transport equipment to be leak proof.
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. Regular water sprinkling by a tanker once a day especially before transportation. 2.3 Noise Environment
In the manual open-cast mining operations, activities such as drilling & blasting, loading & unloading, movement of vehicles are expected to generate noise. No other mine present within 500m radius/periphery of the lease area. In this particular mine, the quantity of stone production being small, the operation will be limited to one shift of eight hours duration in a day. The various sources of noise mentioned above shall only be periodical and are limited to a fixed period of operation only. In addition to this, the transportation of road metals might cause a little effect on the noise level. The following measures will be taken to reduce noise levels.
Diesel powered machineries which are major source of noise in open cast environment will be properly maintained as per maintenance schedule to prevent undesirable noise.
Attention shall be paid towards rigorous maintenance of the silencers of diesel engines.
Drilling rig operators, blasters and dumper drivers will be issued earplugs and earmuffs. Duty hours of operators of noisy machinery will be regulated to keep their noise exposure levels within limits.
Blasting will be carried out only during day-time; at a particular time which will be informed to the villagers. Blasting shall not be carried out in stormy and rainy weather and during lightning.
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Green belt will be developed around office building and mine to reduce noise level.
2.4 Water Management
The objective is to regulate the surface water of the mining area in such a manner so as to cause minimum contamination and alteration of drainage system. There is no water course passing through the area. The major source of water in the buffer area is Dhanei
Nadi flowing in North-Eastern direction to South-Western direction at a distance of 0.8 km from the lease area and Baghua Nadi flowing from North-Eastern direction to South
Western direction at a distance of 1.9 km from the lease area.
Water management, including storm water drainage scheme by a network of garland drains/ diversion ditches & catch-pits has been planned. The salient features of the scheme are as follows:
. Boulder walls will be built all-around the waste dumps which will have weep holes
for passage of storm water. . Settling pits & drains shall be constructed only if possible on the hard surface. The
clear water from the settling pond will be used in dust suppression and plantation . No overburden or loose sediments will be kept in the working benches particularly
during monsoon months. . Monitoring of Dhanei Nadi shall be done at regular intervals & records to be
maintained. . Problems due to inundation and flood will not arise as the mine is in upland and at
a higher altitude than the normal surface level.
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Since the mining depth at the end of the plan period will be at 62m AMSL, intersection of ground water table will never arise. Also in the mining of road metals /stone, no chemical transformation takes place and the ore is naturally occurring, hence there is no possibility of any chemical contamination in this waste water except an increase in suspended solids comprising ore particles, clay etc in surface run off during monsoon.
To cater to the needs of daily water requirement now-a-day mines are coming up with implementing the techniques of Rain Water Harvesting (RWH). Broadly there are two ways of harvesting rain water:
1. Surface runoff harvesting
2. Roof top rainwater harvesting
In the present context of open cast mining, rainwater flows away as surface runoff and hence, Rain Water Harvesting from land surface (paved and unpaved areas) is proposed.
2.4.1 Waste Water Management
No waste water is likely to be generated from the mining of minor minerals. Whatever waste water likely to be generated from office and rest area will be treated in the following manner;
. Effluents from the rest areas will be diverted through drains for green belt
development.
. Sanitary sewage generated in office area shall be treated in septic tanks and soak
pit.
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2.5 Soil Environment
No major impact on soil of the study area is envisaged due to mining activities. Fugitive emission shall remain confined locally within working area and fugitive emission at haul road will be controlled by water sprinkling and plantation. No question of top soil will arise.
2.6 Solid Waste Management
The principal solid waste produced during the open cast mining of stone quarry is mostly non saleable waste. The waste consists of stones of irregular size. These are non-toxic in nature and no chemical contamination is expected. Boulder wall shall be constructed around the waste dump but construction of garland drain is not possible on the hard surface.
The dumping of waste in the Jakara Stone Quarry will be done in scientific manner. Total
3 2040 m of waste material will be generated during the plan period. These waste materials will be dumped separately. The dumping ground selected on the southern part of the lease area. Waste material will be compacted and stabilized by dumping the various sized material in a mixture form. Following steps shall be taken for the management of waste dump;
. Boulder wall of 1.5m high & 0.75m width, followed by garland drain (if, possible to
make on stone surface) all around the dump at the toe shall be formed so that the
rain water falling over the slopes and bringing down small quantities of silt will be
arrested at the toe itself and prevented from going far away to agriculture land &
into the nearby nalas etc. . Retaining walls will have weep holes to drain out water.
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. Settling tank along drain shall be provided at some intervals. . There shall be settling tanks connected to garland drains so that fine sands &
heavy particles coming with water shall settle down and clear water is reused.
. Contour trenches shall be made on overburden dumps to control surface runoff &
subsequent erosion.
. Grasses shall be planted starting from the stabilize side of the dump slope followed
by shrubs. Height of the waste dump will be maximum 2m by the end of the plan
period. The dump will have maximum slope of 37°.
2.7 Biological Environment Including Plantation Development
2.7.1 Floral and Faunal Environment
The said mining project is coming under non-forest land category. The proposed area has thin vegetation cover; mostly herbs & shrubs. Due to dusts from drilling, blasting and vehicle moments the surrounding are likely to be affected but water sprinkling and increase in vegetation cover are proposed to minimize the impact. The flora in the Buffer
Zone is not likely to be affected much because of the very limited mining activity and transportation vehicles. Sal, Amba, Kendu, Jamu are the most dominant species in the forest of this region.
The mining area lies outside the forest area i.e. in non forest land. There are no Reserve
Forests within 10km. Thus the mining activity and other ancillary activities such as drilling, dumping of waste, movement of vehicles, etc. shall have no effect the wild animals and interfere in their life cycle.
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2.7.2 Plantation Development
In order to mitigate and minimize the environmental impacts, arising due to mining project especially from air pollution, noise pollution, soil erosion etc. the Greenbelt development around the project sites can provides the best mitigation option. The green canopy not only absorbs some of these pollutants but also improves the aesthetic environment.
The green belt is proposed to be developed in a width of 7.5m in safety zone. Hence during the plan period in total 200 saplings to be planted in the safety zone. Saplings of
Osta (Ficus religiosa), Neem (Azadirachta indica), Mango (Mangifera indica), Chakunda
(Samanea saman), Jhaun (Casuarina equisetifolla), Su babul (Leucaena leucocephala),
Karanja (Pongamia pinnata), Ata (Annona squamosa) Chota chakunda (Cassia fistula),
Kaniara (Thevetia peruviana) are proposed to be planted. Regular watering in dry season
& maintenance shall be carried out.
2.8 Occupational Safety and Health
Occupational safety and health is very closely related to productivity and good employer- employee relationship. Safety of employees during operation and maintenance etc. shall be as per mines rules and regulations. To avoid any adverse effects on the health of workers due to various pollutants, sufficient measures have been discussed below;
. Provision of rest shelters for mine workers with amenities like drinking water,
latrine, etc.
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. All safety measures like use of safety appliances, safety awards, posters, slogans
related to safety, etc. . Regular maintenance & testing of all equipment as per manufacturers' guidelines. . Periodical Medical Examination (PME) of all workers by a medical specialist so
that any adverse effect may be detected in its early stage. . First Aid in mines including trainings on First Aiders. . Working of mine shall be carried out as per approved mining and environmental
plans.
3.1 IMPLEMENTATION OF EMP AND MONITORING PROGRAMME
The environmental management plan has been developed with a view to bring down the levels of impacts as discussed in the last chapter within limits. In each of the areas of impact, measures have to be taken to reduce potentially significant adverse impacts and where these are beneficial in nature, such impacts are to be enhanced /augmented so that the overall adverse impacts are reduced to as low level as possible.
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Table 4 : Environmental Monitoring Programme
Sl. No. Description Frequency of Location
Monitoring
1. Ambient Air Quality in Twice a week in every six 3 Locations
and around mines months at each location
2. Noise Level Twice a week in every six 3 Locations
Monitoring months at each location
3. Surface Water Quality Once in each six month 2 Locations
4. Ground Water Quality Once in each six month 2 Locations
5. Soil Quality Once in each six month 2 Locations
3.1 Budgets for EMP
To evaluate the effectiveness of Environmental Management Programme, regular monitoring of the important environment protection activities will be taken up. A budget of
Rs 4.3 lakhs has been assigned for the purpose whereas Rs 2.5 lakhs shall be spent annually on EMP. The details break up cost for implementing the environmental protection measures is given below;
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Table 5: Environmental Management Programme
Sl. Activity Capital Recurring Cost
No. Investment
1. Air Pollution Control Rs 2.2 lakhs Rs 1 lakh /annum
2. Water Pollution Control Rs 1 lakh Rs 0.3 lakh /annum
3. Noise Pollution Control Rs 0.5 lakh Rs 0.2 lakh /annum
4. Environment Monitoring ---- Rs 0.8 lakh /annum
5. Green Belt Development & Rs 0.3 lakh Rs 0.1 lakh /annum
Maintenance
6. Occupational Health Safety Rs 0.3 lakhs Rs 0.1 lakh /annum
Total Expenses Rs 4.3 lakhs Rs 2.5 lakhs
/annum
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