S. No Information required Information to be furnished by the proponents
1 Name of the project or activity M/s. Pooja Granites & Minerals – Semi mechanized opencast Black Granite Quarry.
2 Name of the organization/owner Praveen Kumar M – Authorised
Signatory
3 Address for communication No. 5, First Floor, Loop Lane off Race Course Road, Bangalore – 560009
4 Telephone numbers Phone: 080-22352233, 22266611
Mobile: +91 98861 23822. 5 Email ID of the organization or contact
person praveen@squadm.com, squadmtech@gmail.com
6 Location of the proposed project or
activity Sy. No. 288, Ambodarapalli Village, G. D. Nellore Mandal, Chittoor District, Andhra Pradesh.
7 Appraisal Category (B2 or B1) B2
8 Nearest habitation and distance from the
project or activity Patha Venkatapuram – 1.0 km in SE direction. 9 Installed capacity / Production Capacities Black Granite production of
360m3/annum by semi mechanized
opencast quarrying in an area of 1.0 Ha. 10 Specify the Fuel (Coal / CNG /
biomass/Others) and quantity required NA
11 Details of Land use/Land Cover Small Hill with dykes. 12 Occupancy, ownership of the land in
which the activity is proposed:
(Government land / Private land / Forest land /Revenue land /Temple land /leased land/ land belongs to other Department)
Government land.
Yes – Transfer of execution quarry lease deed cum work orders are issued by Assistant Director of Mines and Geology, Chittoor, Government of Andhra Pradesh vide Proceedings No. 7381/TQL/2012 dated 16-04-2014. 13 If it is a Forest land, the following details
shall be furnished:
(Whether it is a Reserved forest / Protected forest/Demarcated forest/ National Parks/Sanctuaries/any land in possession of Forest Department.)
(The village map with Sy. No. indicating nearest forest boundary line from the site shall be enclosed)
No forest land is involved.
14 Total investment of the project/activity. Rs. 11 Lakhs
special reference to specific pollution and
its control measures. with jack hammer line drilling and gang saw cutting by using blasting. 16 Compliance report on the following :
Status of compliance of the conditions and environmental safeguards stipulated in the earlier clearance letters.
NA. QL area is 1.0 Ha, applying for environmental clearance as per Hon’ble supreme court order and MoE&F office memorandum.
Details of the court cases, if any, pending in any Court of Law against the project as well as any directions passed by the Court relating to the project directly or indirectly.
No court case is pending.
Details of the notices, if any, given to the project under Section 5 of the Environmental (Protection) Act, 1986 and Section 18 of the Air (Prevention & Control of Pollution) Act, 1981.
There is no notice received, QL area is 1.0Ha.
17 Whether the project attracts the provisions laid under the OM dt. 16.11.2010 issued by the MoE&F, GOI, w.r.t. violation of EIA Notification, 2006 and its amendments there of? (Yes / No)
No, QL Area: 1.0 Ha (<5 Ha).
Present stage and status of the Project : Quarry operations are stopped now. 18 Name of the Consultant: M/s. Pragathi Labs and Consultants Pvt.
Ltd., Plot No. B-15 & 16, Industrial Estate, Opp. Dena Bank, Sanath Nagar, Hyderabad - 500 018
a)
b)
I
Mr. Praveen KumarM-
Authorized Sitnatoryof
M/s' Pooja Granites&
Minerals residingat
No. 5, First Floor, Loop Lane off Race Course Road, Bangalore-
560009 hereby declare thatl/we/
our organization does not /do not have conflict of interest with the Chairmen and members of SEAC, A.P. and SEIAA, A'P.I
hereby declare thatl(Mr.
Praveen Kumar M) am the authorized signatoryof
ourcompany
/
organizationto
submitthe
applicationand
to
do
all
necessary correspondence for obtaining environmental clearance from State Level Environment lmpact Assessment Authority (SEIAA), A.P. and to attend the meeting (s) of State level Expert Appraisal Committee (SEAC), A.P.to
present our case and to clarify the points raised by the Members of SEAC and SEIAA.l/We hereby declare that M/s. Progathi Labs ond Consultonts Pvt Ltd.' Plot No. B-15 & 1-6, lndustriol Estote, Opp. Deno Bonk, Sonoth Nogor, Hyderdbod-5000L8 is/are
authorized to assist all matters relating to the environmental matters.
l/we hereby declare that the information furnished above is true
to
best of my/our knowledge and l/we shall hold personal liability for any deliberate misrepresentation and or concealment of factual information. lf the information furnished is foundto
be false, the EC issued to our organization can be withdrawn and l/we are liable for action as per ru les applicable.c)
d)
Date: LOlOsl20rs
Place: Signature of the Applicant/ project proponent
(Name and address of the Applicant)
Praveen Kumar M
-
Authorized SignatoryM/s. Pooja Granites & Minerals
No. 5, First Floor, Loop Lane off Race Course Road, Bangalore
-
550009Phone: 080-22352233, 222666tL
APPENDIX I
(See paragraph – 6)
FORM 1
(I) Basic Information
S. No Item Details
1 Name of the Project/s M/s. Pooja Granites & Minerals
2 S. No in the Schedule 1(a)
3 Proposed capacity/area/length/tonnage to be handled/command area/lease area/number of wells to be drilled
Semi mechanized opencast method for black granite average production of 360 m3/annum.
Quarry lease area is 1.0 ha.
4 New/Expansion/Modernization New for EC (Old quarry - Lease area
is <5ha)
Cost estimated for the project Rs. 11 Lakhs
5 Existing Capacity/Area etc. NA
6 Category of Project i.e 'A' or 'B' B (Quarry Lease area: 1.0 Ha) 7 Does it attract the general condition? If yes, please
specify No. (Andhra Pradesh and Tamil Nadu interstate boundary is at 0.5km in SW direction, however there are no other leases within 500m of the proposed area)
8 Does it attract the Specific condition? If yes, please
specify. No.
9 Location
Plot/Survey/Khasra No. Sy. No. 288
Village Ambodarapalli
Tehsil G. D. Nellore
District Chittoor
State Andhra Pradesh.
10 Nearest railway station/airport along with distance in
kms. Railway Station: Ramapuram – 11 Kms – Southwest direction.
11 Nearest Town, City, District Headquarters along with
distance in kms. Town: Chittoor – 16.5Km - Northwest, District headquarter is Tirupathi @ 53km - NNE.
12 Village Panchayats, ZillaParishad,Municipal Corporation, Local body (complete postal address with telephone nos. to be given)
Village Panchayat: Ambodarapalli, Zilla Parishad: Chittoor, Local body: Patha Venkatapuram – 517 421, Kotha Venkatapuram Post Office, G. D. Nellore Mandal, Chittoor District, Andhra Pradesh.
13 Name of the Applicant M/s. Pooja Granites & Minerals
14 Registered Address No. 5, First Floor, Loop Lane off
560009 15 Address for Correspondence:
Name Mr. Praveen Kumar M
Designation(Owner/Partner/CEO) Authorized Signatory
Address No. 5, First Floor, Loop Lane off
Race Course Road, Bangalore.
Pin Code 560009
E-mail praveen@squadm.com,
squadmtech@gmail.com
Telephone Number Mobile No: +91 98861 23822
Fax No. 080-22352233, 22266611
16 Details of alternative Sites examined, if any. Location
of these sites should be shown on a topo sheet. Village-District-State – -NA –
Site specific project i.e. mining.
17 Interlinked Projects -NA-
18 Whether separate application of interlinked project
has been submitted? No
19 If yes, date of submission --
20 If no, reason --
21 Whether the proposal involves approval/clearance under: if yes, details of the same and their status to be given.
(a) The Forest (Conservation) Act, 1980? (b) The Wildlife (Protection) Act, 1972? (c) The C.R.Z Notification, 1991?
No
22 Whether there is any Government Order/Policy
relevant/relating to the site? Yes – Transfer of execution quarry lease deed cum work orders are issued by Assistant Director of Mines and Geology, Chittoor, Government of Andhra Pradesh
vide Proceedings No.
7381/TQL/2012 dated 16-04-2014.
23 Forest land involved (hectares) No forest land is involved.
24 Whether there is any location pending against the project and /or land in which the project is propose to be set up?
(a) Name of the Court (b) Case No
(c) Orders/directions of the Court, if any and its relevance with the proposed project.
No, There is no case pending against the project location.
(II) Activity
1. Construction, operation or decommissioning of the Project involving actions, which will cause physical changes in the locality (topography, land use, changes in water bodies, etc.)
S. No. Information/Checklist
confirmation Yes/No Details thereof (with approximate quantities /rates, wherever possible) with source of information data
1.1 Permanent or temporary change in land use, land cover or topography including increase in intensity of land use (with respect to local land use plan)
NO The proposed quarry lease area is 1.0 ha. The present land use is a small hill rising to a height of 12m with dykes. Proposed method of quarrying is semi-mechanized open cast and the active area is 0.225 ha. 1.2 Clearance of existing land,
vegetation and buildings? NO It is an existing lease area with dolerite dykes. Lease deed executed. 1.3 Creation of new land uses? NO Waste land proposed for quarrying
activity. 1.4 Pre-construction investigations
e.g. bore houses, soil testing? YES Survey completed, based on the soil quality and vibration studies temporary office cut rest shelter, first aid room and toilets will be constructed.
1.5 Construction works? YES Construction activity involves office, rest shelter cum first aid room and toilets will be constructed.
1.6 Demolition works? NO No major construction is observed and
the temporary structures are demolished after completion of workings.
1.7 Temporary sites used for construction works or housing of construction workers?
NO Local villagers will be employed for construction and operational workers. Temporary structures are constructed. 1.8 Above ground buildings,
structures or earthworks including linear structures, cut and fill or excavations
YES Above ground building for the mine office only. No major excavation activity involved.
1.9 Underground works including
mining or tunneling? NO The present method of mining is semi mechanized open cast method for black granite.
1.10 Reclamation works? YES Reclamation will be done after
completion of mine workings by backfilling with mine waste. Topsoil if any generated will be used for plantation of reclaimed land to gets rehabilitation.
1.11 Dredging? NO
1.12 Offshore structures? NO
processes? opencast method using line drilling and blasting.
1.14 Facilities for storage of goods
or materials? YES Dressed blocks will be transported to stock yard by tippers. 1.15 Facilities for treatment or
disposal of solid waste or liquid effluents?
YES During five years plan period about 7920 m3 of waste will be generated. Waste
generated will be dumped in East side in an area of 1200 m2 (0.12 ha) to a height
of 30m and dump will be stabilized by pack walls. Liquid waste i.e. effluent from the domestic source shall be sent to septic tank followed by soak pit.
1.16 Facilities for long term housing
of operational workers? NO Local Villagers will be employed for construction and operational works. 1.17 New road, rail or sea traffic
during construction or operation?
NO No major construction involves, local villagers will be employed for construction and operational purpose. The number of trips required for transportation of mineral is 1 in 3 days.
1.18 New road, rail, air waterborne or other transport infrastructure including new or altered routes and stations, ports, airports etc?
NO Small mine with addition of 1 in 3 days.
1.19 Closure or diversion of existing transport routes or infrastructure leading to changes in traffic movements?
NO Very limited trucks are required. The number of trips required for transportation of mineral is 1 in 3 days. 1.20 New or diverted transmission
lines or pipelines? NO There is no transmission line or pipeline passing through the lease area. 1.21 Impoundment, damming,
culverting, realignment or other changes to the hydrology of watercourses or aquifers?
NO The quarrying operation will be semi mechanized opencast method. The average height of the hill is 12m from ground level and the maximum depth of quarrying is 5m below ground level. No change in hydrology due to proposed activity.
1.22 Stream crossings? NO There is no stream crossing the lease
area. 1.23 Abstraction or transfers of
water form ground or surface waters?
NO Water shall be drawn from local villages for the purpose of domestic and water sprinkling purpose.
1.25 Transport of personnel or materials for construction,
operation or decommissioning?
NO Local villagers shall be employed. Granite is sent away from the site, the numbers of trips will be 1 in 3 days.
1.26 Long-term dismantling or
decommissioning or restoration works?
NO Temporary structures will be constructed.
1.27 Ongoing activity during decommissioning which could have an impact on the environment?
NO
1.28 Influx of people to an area in either temporarily or permanently?
NO
1.29 Introduction of alien species? NO
1.30 Loss of native species or
genetic diversity? NO
1.31 Any other actions? NO
2. Use of Natural resources for construction or operation of the Project (such as land, water, materials or energy, especially any resources which are non-renewable or in short supply):
S.No. Information/checklist
Confirmation Yes/No Details thereof (with approximate quantities /rates, wherever possible) with source of information data
2.1 Land especially undeveloped
or agricultural land (ha) YES present land use is a small hill rising to The quarry lease area is 1.0 ha. The a height of about 12m.
2.2 Water (expected source &
competing users) unit: KLD YES 2.4 KLD, through tankers from nearby village.
2.3 Minerals (MT) YES The present proposal is for black
granite mining and it is a mineral. 2.4 Construction material– stone,
aggregates, sand/soil(expected source-
MT)
NA Quarry office and temporary rest shelters will be constructed, no major construction involves.
2.5 Forests and timber (source – MT) NO
2.6 Energy including electricity and fuels (source, competing users) Unit: fuel (MT), energy (MW)
YES Mechanized open cast mining; power shall be drawn from nearby villages. 2.7 Any other natural resources (use
3.Use, storage, transport handling or production of substances or materials, which could be harmful to human health or the environment or raise concerns about actual or perceived risks to human health.
S.No. Information/Checklist.
confirmation Yes/No Details thereof (with approximate quantities/rates, wherever possible) with source of information data
3.1 Use of substances or materials, which are hazardous (as per MSIHC rules) to human health or the environment (flora, fauna, and water supplies)
NO There are no hazardous substances or materials to human health or the environment. However drilling will be carried out for mining.
3.2 Changes in occurrence of disease or affect disease vectors (e.g. insect or water borne diseases)
NO
3.3 Affect the welfare of people e.g.
by changing living conditions? YES The proposed project shall enhance the prospects of employment. Recruitment for the unskilled and semiskilled workers for the proposed project will be from the nearby villages
3.4 Vulnerable groups of people who could be affected by the project e.g. hospital patients, children, the elderly etc.,
NO The nearest village hamlet is Patha Venkatapuram located at a distance of 1.0km in SE direction. The project shall not have any significant impact on vulnerable groups of people.
4. Production of solid wastes during construction or operation or decommissioning (MT/month)
S.No. Information/Checklist
confirmation Yes/No Details thereof (with approximate quantities/rates, wherever possible) with source of information data
4.1 Spoil, overburden or mine
wastes YES Waste material is dumped in an area of 0.12 Ha.
4.2 Municipal waste (domestic and or commercial wastes)
NO Domestic waste like paper will be disposed off.
4.3 Hazardous wastes (as per
Hazardous Waste
Management Rules)
NO Waste oil from equipment shall be sent to authorized recyclers.
4.4 Other industrial process
wastes NO
4.5 Surplus product NO
4.6 Sewage sludge or other sludge from effluent treatment NO 4.7 Construction or demolition wastes NO 4.8 Redundant machinery or equipment NO
4.9 Contaminated soils or other
materials NO
4.10 Agricultural wastes NO
4.11 Other solid wastes NO
5. Release of pollutants or any hazardous, toxic or noxious substances to air (Kg/hr) S.No. Information/Checklist
Confirmation Yes/No Details thereof (with approximate quantities/rates, wherever possible) with source of information data
5.1 Emissions from combustion of fossil fuels from stationary or mobile sources
NO Combustion of fuel is not anticipated as the proposal is mining of mineral.
5.2 Emissions from production
processes YES Dust emissions are anticipated from mining and transport activity. Water sprinkling and green belt development is proposed to reduce the dust. 5.3 Emissions from materials handling
including storage or transport YES Dust may rise during mining, and transport. 5.4 Emissions from construction
activities including plant and equipment
YES Dust may rise during transport of material and mining activity. The dust emissions shall be mitigated by water spraying. 5.5 Dust or odours from handling of
materials including construction materials, sewage and waste
NO
5.6 Emissions from incineration of
waste NO
5.7 Emissions from burning of waste in open air (e.g. slash materials, construction debris)
NO
6. Generation of Noise and Vibration, and Emissions of Light and Heat: S.No. Information/Checklist
confirmation Yes/No Details thereof (with approximate quantities/rates, wherever possible) with source of information data with source of information data
6.1 From operation of equipment e.g. engines, ventilation plant, crushers
YES Noise is anticipated during mining activity from drilling equipment, transport vehicles. Wet drilling and water sprinkling system is provided to reduce the dust emissions. Personal protective equipments are provided to the workers to reduce the noise levels. 6.2 From industrial or similar
processes NO
6.3 From construction or
demolition YES Safety equipments shall be provided to the workers. 6.4 From blasting or piling YES Dust and noise may rise during drilling and transportation. Water sprinkling system is provided to control the dust emissions. PPE’s are provided to the workers.
6.5 From construction or
operational traffic YES The increased traffic shall not have any significant impact. 6.6 From lighting or cooling
systems NO
7. Risks of contamination of land or water from releases of pollutants into the ground or into sewers, surface waters, groundwater, coastal waters or the sea:
S.No. Information/Checklist confirmation Yes/No Details thereof (with approximate
quantities/rates, wherever possible) with source of information data
7.1 From handling, storage, use or spillage of
hazardous materials NO The material excavated is Black Granite is mineral. 7.2 From discharge of sewage or other
effluents to water or the land (expected mode and place of discharge)
NO Septic Tank followed by soak pit shall be provided for temporary toilets.
7.3 By deposition of pollutants emitted to air
into the land or into water NO
7.4 From any other sources NO
7.5 Is there a risk of long term build up of pollutants in the environment from these sources?
NO
8. Risk of accidents during construction or operation of the Project, which could affect human health or the environment
S.No. Information/Checklist
confirmation Yes/No Details thereof (with approximate quantities/rates, wherever possible) with source of information data
8.1 From explosions, spillages, fires etc from storage, handling, use or production of hazardous substances
NO No major hazardous substances are used, blasting agents will be supplied by qualified blaster as per norms.
8.2 From any other causes NO
8.3 Could the project be affected by natural disasters causing Environmental damage (e.g. floods, earthquakes, landslides, Cloudburst etc)?
9. Factors which should be considered (such as consequential development) which could lead to environmental effects or the potential for cumulative impacts with other existing or planned activities in the locality
S. No. Information/Checklist confirmation Yes/No Details thereof (with approximate quantities/rates, wherever possible) with source of information data
9.1 Lead to development of supporting.
facilities, ancillary development or development stimulated by the project which could have impact on the environment e.g.:
•Supporting infrastructure (roads, power supply, waste or waste water treatment, etc.)
•Housing development •Extractive industries • Supply industries • Other
YES The proposed project shall enhance the prospects of employment. Recruitment for the unskilled and semiskilled workers for the proposed project will be from the nearby villages.
9.2 Lead to after-use of the site, which could have an impact on the environment
NO
9.3 Set a precedent for later developments NO
9.4 Have cumulative effects due to
proximity to other existing or planned projects with similar effects
NO The baseline environmental status of the surrounding areas is within the prescribed limits as observed from the secondary data.
(III) Environmental Sensitivity
S.No. Areas Name/
Identity Aerial distance (within 15 km.) Proposed project location boundary
1 Areas protected under international conventions, national or local legislation for their ecological, landscape, cultural or other related value
NO
2 Areas which are important or sensitive for ecological reasons - Wetlands, watercourses or other water bodies, coastal zone, biospheres, mountains, forests
YES Amudala RF – 3.75km – East, Pachigunta RF – 7.8km – NE, Ponnai Dry River is flowing from NW to SE through the study area at 2.4km in SW direction.
3 Areas used by protected, important or sensitive species of flora or fauna for breeding, nesting, foraging, resting, over wintering, migration
NO
4 Inland, coastal, marine or underground
waters NO None within 15km radius.
5 State, National boundaries YES Andhra Pradesh and Tamil
Nadu interstate border is at 0.5km in SW direction.
6 Routes or facilities used by the public for access to recreation or other tourist, pilgrim areas
NO
7 Defence installations NO None within 10 km radius.
8 Densely populated or built-up area NO There are no urban or semi urban areas within 10km radius of the proposed area. The study area consists of rural area with low agriculture activity.
9 Areas occupied by sensitive man-made land uses (hospitals, schools, places of worship, community facilities)
NO The PIA consists of community facilities in various villages; however no major impact is anticipated, as the mine is 1.0 km away from the residential area.
10 Areas containing important, high quality or scarce resources
(ground water resources, surface resources, forestry, agriculture, fisheries, tourism, minerals)
YES Ponnai Dry River is flowing from NW to SE through the study area at 2.4km in SW direction.
environmental damage. (those where existing legal environmental standards are exceeded)
consists of very few industries. 12 Areas susceptible to natural hazard which
could cause the project to present environmental problems (earthquakes, subsidence, landslides, erosion, flooding or extreme or adverse climatic conditions)
(lVl Proposed Terms of Reference
Environment Management Plan and Mitigation Plan:
proposed project is semi mechanized opencast method Black Granite quarry over an extent of 1.0 ha (<5 ha) located in Sy. No. 288, Ambodarapalli Village, G.D. Nellore Mandal, Chittoor District, Andhra Pradesh. The project authorities are obtained Transfer of execution of quarry lease deed cum work orders from Assistant Director of Mines and Geology, Government of Andhra Pradesh for unexpired period. Hence it is proposed to prepare an Environment Management Plan under Bz
category as per EIA notification, 2006 and its amendments.
e Environment Management Plan shall identify typical impacts due to semi mechanized mining
and a mining specialist shall work closely with the engineering team/technical consultants to
suggest practicable measures to avoid or mitigate the impact. The mitigation of environmental impacts will be by three mechanisms.
=>lntroduction of mitigation features through the engineering practices.
=>lmplementation of environmental controls during construction and operation. =>Legislative control involving compliance with Indian environmental laws.
Environmental management plan shall include an estimate of capital and recurring costs of mitigation measures and will identify the institutionalframework for implementation.
Monitoring Plan:
Having identified the significant environmental impacts that are likely to arise project, the project team shall specify what monitoring is required during the
project cycle.
The monitoring plan
will
identify parameters and frequencyof
monitoring organization.as a result of the various phases of
and responsible
I hereby give the undertaking that data and information given in the application and enclosures are
true to the best of my knowledge and belief and I am aware that if any part of the data and information submitted is found to be false or misleading at any stage, the project will be rejected and clearance glve, if any to the project will be revoked at our risk and cost.
Date: loth August, 2015 Place:
Signature of the a pplicant With Name and Full Address
(Project Proponent/Authorised Signatory)
Praveen Kumar M
-
Authorized Signatory M/s. Pooja Granites & MineralsNo, 5, First Floor, Loop Lane off Race Course Road, Bangalore
-
560009Phone: 08G.22352233, 222666LI Mobife: +91 9886L 23822.
1.0 Introduction 1
1.1 Granites and uses 2
1.2 Quarry Location and its surroundings 2
1.3 Land use pattern of the lease area 4
2.0 Topography of the Area 7
2.1 Regional Geology 7
2.2 Local Geology 7
2.3 Brief description of litho units 8
3.0 Exploration 8
3.1 Estimation and Calculation of Geological Reserves 8
4.0 Mining 9
5.0 Scheme Development and Production for First Five Years 11
5.1 Year wise Development 11
5.2 Solid Waste 12
5.2.1 Estimated waste quantity 12
6.0 Site Services 13
7.0 Water requirement 13
8.0 Environment Management Plan 13
8.1 Sources of Pollution and Control Measures 14
8.2 Air pollution and its Control 14
8.3 Noise pollution and its control 15
9.0 Occupational Safety and Health 15
9.1 Occupational Safety and Health to Control Exposure to Noise 16
9.2 Control of Ground Vibrations & Fly Rock generation 17
10.0 Peak Particle Velocity 17
11.0 Water Quality Management 18
11.1 Wastewater generation and treatment 19
11.2 Water Management 19
11.3 Garland drain and siltation pond 20
12.0 Waste management plan 20
13.0 Dump area 21
13.1 Land Management 21
13.1.1 Mine closure and Land Reclamation 21
13.1.2 Soil Conservation Measures 21
14.0 House Keeping 22
15.0 Transport Systems 22
16.0 Greenbelt development 22
17.0 Socio-economic Environment 23
18.0 Disaster Planning 24
19.0 Environment Management Cell 25
19.1 Post Project Monitoring 26
19.2 Other Management Aspects 26
Section Description Page No
1 Details of Quarry Lease area around 10km 3
2 Land use details of Lease Area 4
3 Geological reserves 9
4 Year wise Granite production 12
5 Solid waste generated 12
6 Water Requirement 13
7 Peak Particle Velocity (V) 18
8 Suggested Plant species for greenbelt development 23
9 Environment Management - Cost Estimate 27
List of Figures
Section Description Page No
1 Quarry Lease location around 10 Km study area map 5
ENVIRONMENT MANAGEMENT PLAN
1.0Introduction
Pooja Granites & Minerals proposes to extract Black Granite in Sy. No. 288, Ambodarapalli Village, G. D. Nellore Mandal, Chittoor District, Andhra Pradesh. Transfer of execution quarry lease deed cum work orders are issued by Assistant Director of Mines and Geology, Chittoor, Government of Andhra Pradesh vide Proceedings No. 7381/TQL/2012 dated 16-04-2014 for the unexpired period up to 27.8.2027 subject to submission of Approved mining plan along with Consent for Establishment, Consent for Operation and Environmental clearance. Mining plan is approved by Joint Director of Mines and Geology, Government of Andhra Pradesh vide Letter No. 5790/MP-CTR/2012 dated 22-12-2012 under Minor Mineral Concession Rules, 1960. It is submitting for environmental clearance to be obtain from State Level Environment Impact Assessment Authority under B2 category as per EIA notification, 2006
and Office Memorandum dated 24.12.2013 as the lease area is <25ha. There are no existing operating mines/quarries located within 500m radius of the proposed lease area which equals or exceeds 5ha as the Andhra Pradesh and Tamil Nadu interstate border is at 0.5km in SW direction. There are no national park, wildlife sanctuary and critically polluted area observed within 10km radius from the quarry lease area. It is proposed to extract Black granite production of 360 m3 annually by semi mechanized opencast mining. Capital cost
proposed for quarrying is Rs. 11 Lakhs.
Pooja Granites & Minerals is conscious of their environmental responsibility towards the society in minimizing the pollution load due to this project and accordingly decided to carry out the Environment Management Plan. The objective of environment management plan is to delineate effective measures to control and to mitigate the environmental pollution. This report presents the environment management plan, detailing the environmentally sound technology and the measures needed to contain and mitigate the anticipated environmental impacts due to the project. This report discusses the management plan for mitigation/abatement of adverse environmental impacts and enhancement of beneficial impacts due to mining. The EMP has been designed within the framework of various legislative and regulatory requirements on environmental and socio-economic aspects.
1.1 Granite and its uses
Granite is a very common intrusive igneous rock. It is light-colored granulose plutonic rock composed of the minerals feldspar, quartz and biotite & muscovite mica. These minerals make granite white, pink, or light grey. Granite also contains small amounts of dark brown, dark-green, or colour minerals, such as hornblende and biotite mica.
Granite is very hard and dense. It can be readily cut into very large blocks and it takes an extremely high polish. The name granite is derived from the Latin word granum, which means grain, an obvious reference to the granular texture of granite. The average density of granite is between 2.65and 2.75 g/cm3, with a compressive strength of above 200 Mega
Pascal (MPa).
Uses
Granite has been extensively used as a dimension stone and as flooring tiles in public and commercial buildings and monuments. With increasing amounts of acid rain in parts of the world, granite has begun to supplant marble as a monument material, since it is much more durable. Engineers have traditionally used polished granite surfaces to establish a plane of reference, since they are relatively impervious and inflexible. Granite tables are used extensively as a base for optical instruments due to granite's rigidity, high dimensional stability and excellent vibration characteristics. Rough-cut and polished granite is used in buildings, bridges, paving, monuments and many other exterior projects. Indoors, polished granite slabs and tiles are used in countertops, tile floors, stair treads and many other practical and decorative features. Presently, cut and polished granite slabs of 20 mm thickness are preferred for flooring, while tiles of 10 or 12 mm thickness are used for cladding.
1.2 Quarry Location and its surrounding
Details of the quarry lease area around 10km radius are presented in table 1. Quarry lease area location map showing 10km study area is presented in figure 1 and lease area boundary map is presented in fig 2.
Table 1 Details of Quarry Lease area around 10km
Details Measurement Data Nature Source
Location Sy. No. 288, Ambodarapalli Village, G. D.
Nellore Mandal, Chittoor District, Andhra Pradesh
P Lease notice and
Approved Mining Plan (AMP)
Area of lease 1.0 Ha S Lease notice and AMP
Activity Semi mechanized opencast black granite @
360 m3/Year S Approved mining plan
SOI topo sheet No. 57 O/4 S AMP
Latitude &
Longitude 13° 10’ 23”N, 79° 14’ 45”E S Verification and approved mining plan
EMP Cost Rs. 2.33 Lakhs P Calculation submitted
Nearest village and
Habitation Patha Venkatapuram – 1.0 km – SE and 300 persons approximately S Based on Google map and SOI, OSM topo map
Road access Ponnai to Thugundram road – 0.2 Km – NW S SOI, OSM topo map
and Google map
Nearest town Chittoor – 16.5 Km - NW S
Rail network Ramapuram RS – 11 Km - SW S
Average Heaviest Rainfall observed in a month
164 mm (September) S From IMD Normal
Climatological table Nearest water
source of “3rd“ order or above
Tank - 1.3 km - North S From SOI , OSM topo
map
River/Stream Ponnai dry river – 2.4 Km – SW (NW-SE) S
Garland drain 79m L x 1m W x 1m D S Based on the rain fall
multiplied over a period of 3 months. Depth of water
table 30m BGL S From CGWB Reports
Altitude of the
area 262 m AMSL S SOI , OSM topo map and Google map
Height of hill 12 m AGL S AMP and google map
Anticipated Depth of quarry at the end of lease period
5m BGL S Approved mining plan
Proved depth of
quarry 5m from surface
Details of production and waste
1080 m3/5years of black granite and 7920
m3/5years of waste S From mining plan.
Waste dump area
provided 0.12Ha @ 30m height S Calculation submitted
Recovery claimed 12:88 S From Mining plan
of the material
mined settles quickly in water and does not flow
Chemical
reactivity of material
Non-toxic S
Minerals in the
material Complex silicates of Na, K. Felsic in nature S
Waste material
nature Non-Toxic S
Nearest mines if
any None within 500m radius which equals or exceeds 5 ha S From the DMG map and Google map
Forest boundary Amudala RF – 3.75km – East and
Pachigunta RF – 7.8km – NE S From SOI , OSM topo map
Inter State
Boundary Andhra Pradesh and Tamil Nadu – 0.5 Km - SW S SOI topo map and google map
Wild life sanctuary None within 15 km S
Places of
importance None with in 15 km S
P:Primary, S:Secondary, RS- Railway Station, BGL - Below Ground Level, AGL - Above Ground Level & AMSL: Above mean seal level and RF: Reserve Forest
1.3 Land use pattern of the lease area
The quarry lease area is a small hill with dykes and sheet rock to a height of 12m. Land use
details are presented in table 2.
Table 2 Land use details of Lease Area
S. No Purpose Extent (Ha)
1 Area used for quarrying 0.225
2 Waste dump area 0.12
3 Road 0.04
4 Infrastructure(Office, rest shelter) 0.01
5 Plantation 0.16
6 Stock yard 0.02
7 Non Broken 0.43
2.0Topography of the Area
The area is located on Topo Sheet No. 57 0/4 (1:50,000 Scale) the subject area is a dolerite dyke (Black) Exposure at the Junction of North Latitude of 13° 10' 23’' and East Longitude of 79° 14' 45’’ with an in site deposit below 5 to 6 m. There is maximum relief of 5 m average and there is no trees exposed.
2.1 Regional Geology
The Chittoor district forms with part of Indian Peninsular gneiss which has remained stable since formation of the crust. During the late Archean Era: Igneous intrusions of alkaline rocks. The northeastern part of the district is a rugged terrain with the hills of Cuddapah basin forming parallel ridges trending NWSE with interspersed valleys. Rocks of Archean Proterozoic Jurassic -cretaceous, and tertiary -quaternary ages are exposed in the district. The oldest rocks in the north eastern part of the district older metamorphic comprise amphiboities, Hornblende talk- mica-schist, fuchsite quartzite, calc-silicate rock, marble and banded ferruginous quartzite, these older metamorphic occur on enclaves within peninsular Gneissic complex.
The peninsular gneissic complex comprises a complex assemblage of gneissic varieties and granite rocks which occupy almost the entire area of the district. Peninsular gneissic complex in the area is represent mostly by biotite hornblende gneiss, biotize granite and migmatite.
The southern tip of the well-known cuddapah basin falls in the north eastern part of this district. Shale, phyllite and quartzite of bairen konda formation, shale/phyllite and Iimestone of cumbum formation are exposed in the district.
These rocks of cuddapah super group rest unconformable over the peninsular gneissic cotnplex occur as linear ridges to the south of Kalahasti and as eprchaen unconformity. The rocks of Gondwana super occur non-conformably over the peninsula Gneisse Complex in south eastern part and comprise mottled, ferruginous, quartzite and conglolerate with plant fossils. Laterite cappings occur on Gondwana sand stone large tracks of alluviurn occur along the major streams which are the recent deposits of the district.
2.2 Local Geology
The area represents a peninsular gneissic complex comprising grey gneiss with Dolerite intrusions. A Dolerite is intruded through the center of gneiss of the E-W strike direction. No shear zone or fault has been noticed in this area. Since it is hilly formation there are some discontinuities from one mound to the other. The Dyke is found to occur below ground at a depth of 5 to 6mts Ground Level and to an average width of 30mts. The Dyke out crop does show large
to big (1m to 3 m) size boulders alone the strike direction. The float material i.e. small Dolerite boulders cover the slope of the area, towards the contact of the country rock. The sheet formation is anticipated below proved deposit. The boulders exposed on top of layer area are weathered and developed closed joints. Whereas the spacing of the joints are increasing from second layer and it can be seen in working pits. Dolerite dyke has fine to medium grain size. It is hard and compact and dark grey to black in colour. The deposit contains good size boulders in the center of the formation and as big size blocks can be produced for the gang saw cutting and polishing industry. Chilling activity is seen at the margins with the host rock. As already stated the Dolerite dyke is hard and compact showing ophitic to sub ophitic texture of plagioclase feldspar and clinophyroxene as main minerals. Quartz, epidiote and opaque’s occur as accessories. Due to its greyish black colour, it is being marketed as Black Granite and it is used for slabs and as well as for monuments. Most of the raw (dimensional) blocks of this granite are being exported from this region. The applied area is elevated mound. Where in the dolerite dyke trending in East - west direction.
2.3 Brief description of litho units
Fine to medium grained Dolerite is the economical litho unit in this area. It is compact, showing ophitic to sub-ophitic texture consisting of plagioclase feldspar and clinophyroxene as main minerals. Quartz, Epidiote and opaques occur as accessories. Due to its greyish black colour, it is being marketed as 'Black Granite' and it is used for slabs and as well as for monument.
3.0 Exploration a) Present Status
The QL area is not exposed as hillock deposit dyke is exposed below ground level and sheet rock which is suitable for blocks & fit for extracting gang saw blocks. The quarry operations are split into different working points wherever Dyke rock is exposed. The production obtained from 2007 to 2014 is approximately 600 Cu. m.
3.1 Estimation and Calculation of Geological Reserves
Based on the prospecting work carried out and the present exposure of the rock, the reserves of the area have been estimated by the following parameters. Average width of deposit is 37m, Average length of the deposit is 190m and average proved depth of deposit is 5m. Section wise calculation of Black Granite reserves are given in the table 3.
Table 3 Geological Reserves
Category Section Influence distance m Sectional area in m2 Volume in m3 Recovery @12% in m3 Reserves @ 12% in m3 Rock wastage @ 88% in m3 A B A x B 0.12 (A x B)0.12 (A x B)0.88 Proved A-A' 65 0 0 0.12 0 0 B-B' 50 100 5000 0.12 600 4400 C-C' 75 70 5250 0.12 630 4620 Total 10250 1230 9020 Probable A-A' 65 160 10400 0.12 1248 9152 B-B' 50 230 11500 0.12 1380 10120 C-C' 75 190 14250 0.12 1710 12540 Total 36150 4338 31812 Possible A-A' 65 160 10400 0.12 1248 9152 B-B' 50 230 11500 0.12 1380 10120 C-C' 75 190 14250 0.12 1710 12540 Total 36150 4338 31812 Grand Total 82550 9906 72644
Total black granite reserves = 82550 m3
Salable black granite reserves as 12% R.F = 9906 m3 Depleted granite reserves = 600 m3
Balance reserves available = 9306 m3
Mineable Reserves and Life of the Quarry
The total quantity of mineable reserves is considered as (economic) marketable reserves. In this way a total mineable reserves of 9306 m3 are available in this Q.L. applied area. The
production is proposed to obtain 360 m3 per year. At this rate of production, the expected
life of the mine is calculated as follows.
Life of the Quarry: Mineable Reserves / Annual production = 9306/360 = 26 years. 4.0Mining
Open cast method of mining will be carried out in this mine by semi mechanization by using compressor operated jack hammer drills, excavators, and dumper etc. Hydraulic excavator and compressor operator jack hammer is used for cutting the rock. Splitting of block is made by chisels, feathers & wedges even the loading is made by crane. Transportation will be made by trucks to dispatching point.
a) Separation of large primary Blocks from the mother rock by pre-splitting (Primary)
The purpose of Channeling is to First Separate a large primary block of the order of 300cm from the mother rock on the periphery, to obtain big blocks with opening up of granite quarry. Normally cut must be superimposed on to the natural joint to completely isolate the primary block.
It is used to separate a large block from the main body of the deposit, to make secondary blocks. The dia. of the hole is 36mm vertical holes. The spacing between hole is 30cm. The holes are charged with detonating -cord with 10 gm/Meter Positioned in the hole, filled with water. The detonating effect is direct from one holes to the next without shattering over a large area.
Sub-Division of large Primary Blocks into Secondary Block
These are made to subdivide separate large blocks, into sizeable blocks to the order of 100 m3 from which smaller commercial blocks are obtained by production Cuts. Secondary cuts
are generally, made by pneumatic drill. Closely spaced (30 Cm apart along straight Iine) for splitting along the line of holes by smooth blasting by use of detonating cord. The hole dia. is 36mm.
b) Production of Commercial Blocks
After primary separation, the rock mass will be carefully examined to avoid hair line cracks, mineral segregations and veins etc. The dressing of the rough blocks will be made by chipping the edges and geometrically equating the edges of the block at the dressing yard. The rough blocks obtained after primary cut it will be dressed for obtained good geometric shape of granite. Thus the commercial blocks are produced.
c) Extent of Mechanization
It is proposed to undertake semi-mechanized mining operations, the following machinery will be deployed.
i) Excavator – One
ii) 60 CFM – Compressor CP – One iii) Jack Hammers – 4 No’s
iv) 10 tones tippers – 2 No’s. v) Tractor Compressor – 1 No.
d) Loading Equipment
Loading of the blocks will be made by chain pulley with the help of crane or procaine by the skilled laborers to the hired trucks to transport the material to the nearest ports / destination of customer.
e) Organization Chart of the Quarry
The applicant will appoint following employees at this mine
a. Mines Manager : 1 No.
b. Supervisors : 1 No.
c. Excavator operator : 1 No.
d. Compressor operator : 1 No.
e. Tipper operators : 2 No.
f. Drillers : 2 No.
g. Helpers : 10 No.
h. Cutters : 4 No.
i. Watchman : 1 No.
Employment Potential: Taking 25 working days in a month, there will be 300 working days in a year. The expected output of raw material per day is about 1.2 CBM on an average. Based on the demands from the purchasers, labor force will be increased.
5.0 Scheme Development and Production for First Five Years
The scheme of development and production for the first five years has been planned in consideration of the nature of the deposit within the lease area. It is observed that the sheet rock is exposed on surface without any overburden.
5.1 Year wise Development
It is proposed to raise about 360 m3 of granite per year for both Local and Export. The
workings will be made from all sides; starting from the bottom of QL area. In this particulate type of Mining there is necessity for formation of benches because of the sizes of blocks required (bigger sizes are required that is gang saw), as the material will be removed from the lease area the vacant area is filled by the O.B will be removed. For making Quarrying easy, wastage is dumped in lease Area for working at the exposed sheet rock it will take around 5 to 10 years before we could approach probable & possible reserves. During this five years operations a total rock mass of 9000 3
will be recoverable from this rock mass and remaining material of about 7920 3
m will go as
mineral waste. Year wise production and waste generation is presented in table 4.
Table 4 Year wise Granite production
Year Working area
(A) m2 Bench height (H) m Volume (A x H) m3 Production m 3 Granite@12% Waste@88% 1st Year 450 4 1800 216 1584 2nd Year 450 4 1800 216 1584 3rd Year 450 4 1800 216 1584 4th Year 450 4 1800 216 1584 5th Year 450 4 1800 216 1584 Total 2250 9000 1080 7920 5.2Solid Waste
During five years operations a total rock mass of 9000 3
m will be excavated and 1080m3 of
granite blocks will be recoverable from this rock mass and remaining material of about 7920 3
m will go as mineral waste. There is no much overburden on the deposit. Boulders are
exposed on top of the ground. The East side of the area is selected for dump yard for next five years and the waste will be stocked in the dump yard, step dumping will be resorted. When the dumps reach their optimum height suitable greenery will be grown on these dumps to stabilize them. This material can be utilized to fill the pits after quarry operations are over. Year wise waste generation is presented in table 5.
Table 5 Solid waste generated
S. No. Year Total waste Generated m3
1 1st year 1584
2 2nd year 1584
3 3rd year 1584
4 4th year 1584
5 5th year 1584
Total waste generated for five years 7920
5.2.1 Estimated Waste Quantity
Total Black granite reserves = 82550 3
m
Saleable Black granite reserves @ 12% = 9906 3
m
Mineral waste in the area @ 88% = 72644 3
6.0Site Services
It is also proposed to provide the site services like Mines office and other statutory constructions like rest shelter, first aid, work shed and drinking water as required near the quarry lease. Drinking water is supplying to the workers from the bore wells in the adjacent agricultural fields or purchased for local villages. About 100 m2 of area is proposed for site
services with semi permanent structures of 3m height ACC roof in NNW side of the area.
7.0Water requirement
Water requirement of 2.4 KLD for the project is mainly for Domestic source, maintaining the green belt and also for sprinkling on the haulage roads to mitigate dust emissions. The water shall be drawn from nearby villages. The water requirement of the project is presented in
table 6.
Table 6 Water Requirement
S. No Water Usage Quantity (KLD)
1 Wet drilling operation (On production basis @ 80 Ltr/1 m3) 0.1
2 Water sprinkling on haul roads @ 1Ltr/Sq. Mt (400m2)+1/4th for
waste dump settling 1.0
3 Domestic @ 40 Ltr/Head (23 No’s) 0.92
4 Green Belt @ 0.2KL for 0.16 ha – 2 times a day 0.4
Total 2.4
8.0Environment Management Plan
Environmental protection is an issue that no organization can neglect and hope to survive. The products of civilization are being dumped upon the environment to a degree that the environment finds difficult to assimilate. The key to the success of the integrated approach to pollution prevention and control is the management and operation of the organization. Effective committed management delivers a successful operation. As total commitment to the environment, not just for compliance with legal or regulatory compliance will be the essence of environment management. Many companies have recognized the benefits of implementing an effective environmental management system.
Environmental management plan can be effectively implemented to mitigate the pollution levels by observing the following:
b. Pollution that cannot be prevented will be recycled in an environmentally safe manner.
c. Pollution that cannot be prevented or recycled will be treated in environmentally safe manner and
d. Disposal and other releases into the environment will be used only as a last resort and will be conducted in an environmentally safe manner.
The proposed project is granite mine. The mine owners are aware of the adverse impacts due to the mining activity and propose to initiate a number of measures for the environment protection within the mine area and in the surrounding areas. The company has a stated environmental policy of ensuring regulatory compliance with respect to the statutory laws and regulations and those periodically issued by the Ministry of Environment, GOI, New Delhi, CPCB, New Delhi and State Pollution Control Board.
8.1 Sources of Pollution and Control Measures
The sources of pollution are air and noise from the proposed activity mainly from Mining, drilling, Blasting and transportation of mineral. Waste material generation, dumping and restoration.
8.2Air Pollution and its Control
The granite mining does not involve much dust formation. The dust would be generated during drilling, blasting, quarrying and also during handling and transportation of the material. The dust anticipated at drilling place will be suppressed by putting cloth around the hole. Use of sharp drill pits for drilling holes and drills with water flushing systems (wet drilling) to reduce dust generation. Water spraying to be adopted at Faces/sites before and after blasting, Faces/sites while loading. Over charging of blast holes should be avoided. Personal protective equipments like nose mask and goggles etc will be provided to the workers. Regular water spraying on haul roads during transportation of mineral and waste by water sprinklers. Over loading of transport equipments should be avoided to prevent spillage. Also, measures such as covering tarpaulin over the loaded material will prevent spreading of dust particles from the trucks. Speed controls on vehicle movements to be limited speed. Wind reduction control by plantation. Over burden dump has reached the optimum size, it will covered with top soil and water will spread on top soil and grass will be developed on the
checking and maintenance of vehicles should be conducted and pollution under control certificate be obtained. Periodical monitoring of ambient air quality will helps to take steps to control the pollutants.
8.3Noise pollution and its control
The major source of noise pollution is due to drilling of drill holes, machinery, Blasting and vehicular movement. Blasting operations will be carried out only during daytime so as to avoid high noise intensity in night time. Noise barriers in the form of trees are provided to attenuate the noise levels and green belt of 6m width shall be developed to mitigate propagation of noise. Protective equipment to reduce the noise levels like ear muffs and other protective devices will be provided to the staff working near noise generating sources like drill machine operators and dumper drivers. Training would be imparted to mine personnel to generate awareness about the damaging effects of noise. The transport activity shall be restricted to day time to reduce impact on habitation. The engines of the tractors shall be switched off during loading operation, and shall be periodically maintained to ensure low noise levels. Proper maintenance of the equipment will also reduce the noise.
9.0 Occupational Safety and Health
Health and safety aspects of the mine will be taken care off as per the World Bank (WB) guidelines on open pit mining. The guidelines provide the detailed information on the aspects that are required to be taken into account for maintaining proper health and safety issues. The workers continuously exposed to dust will be provided with protective devices like dust mask to prevent respiratory disorders. The workers continuously exposed to a high noise will be provided with ear muffs/ earplugs. Green belt in and around the mining area will be developed to attenuate noise and dust impact. The blasting carried out in the mine area will be carefully planned and executed under the supervision of a responsible officer, to avoid any accidents. Provisions of rest shelter for mine workers with facility of drinking water supply for the employees will be provided by the project authority. The standard of the drinking water will be per WHO guidelines. Periodical training programme to inform the employees about their task, associated risk, and safe working practices will be undertaken. Conduct of mock drill, Safe storage & handling of explosives. Training will also include information on accident prevention, proper control and maintenance of equipment and safe material handling
practices. Awareness on safety and ensure using of personal protective equipments (PPE) by workers. Regular maintenance and testing of equipments will be done.
A regular monitoring of the Occupational Health and Safety will reduce the chances of accidents in the mine. Records of job related accidents and illness should be maintained. This information will be reviewed and evaluated to improve the effectiveness of Environmental Health and Safety programme.
Occupational Safety and Health to Control Dust Inhalation
Very little dust is expected to be generated during mining and does not affect the environment. However while drilling, wet drilling will be practiced. It is a small scale mining activity and not much vehicular movement is expected.
All the above precautions would be adopted to prevent dust generation at site and to be dispersed in the outside environment. However, for the safety of workers at site, engaged at the strategic locations/dust generation points like drills, loading & unloading points dust masks would be provided. Dust masks would prevent inhalation of RSPM thereby reducing the risk of lung diseases and other respiratory disorders. Regular health monitoring of workers will be carried out.
9.1 Occupational Safety and Health to Control Exposure to Noise
Blasting will be done using non delay detonators to reduce vibrations, and the amount of explosive used will also be less at a time. There will not be heavy earth moving machinery which may create some noise pollution. Thus the vibration and noise will be well controlled within permissible limits.
To protect the workers from exposure to high levels of noise, following measures would be adopted:
Provision of protective devices like ear muffs/ear plugs to workers who cannot be isolated from the source of high intensity noise, e.g. blasting;
Reducing the exposure time of workers to the higher noise levels by shift management.
Smooth blasting techniques, special explosives and silent non-explosive demolishing agent will be used.
9.2 Control of Ground Vibration & Fly Rock generation
In this area the applicant proposes to deploy blasting with less quantity of non-explosives. There will not be any impact on surroundings, as there are less blasting and intended to use low power explosives in this mine. It is a small scale mine and only limited No. of holes are blasted. Ground vibrations due to blasting and its impact on various mine structures, should be studied in details when the mine becomes operational, especially the charge per delay factor. General measures to reduce ground vibration & fly rocks resulting from blasting are given below:
Blasting should be carried out in the daytime, as during the night time the sound intensity becomes higher;
Blasting should not be carried out when strong winds are blowing towards the inhabited areas;
Maximum permissible charge per delay should be decided on the basis of the distance of
structure to be protected from the blasting.
The number of rows in a blast should not be more than four so that fly rock generation
and ground vibration is reduced.
Peak particle velocity or ground vibration for safety of nearby structures and residential
buildings is 4 mm/sec (Standard 100 mm/sec) at 20m distance from the activity;
To contain fly rocks, stemming column should not be less than the burden of the hole,
and the blasting area should be muffled;
Each blast should be carefully planned, checked, and executed under the supervision of a responsible officer. Blasting data/observations should be recorded; and
As per the mining plan, in order to ensure slope stabilization, controlled production blasting shall be adopted to avoid tension cracks and back breaks. Such cracks may get filled with water, which reduces the stability of excavated slopes and the angle of slopes.
10.0 Peak Particle Velocity
The vibrations are measured as per the assessment criteria given under Bureau of Indian Standard, “IS: 6922-1973 (Reaffirmed 2003) - Criteria for Safety and Design of Structures Subject to Underground Blasts”.
Per the assessment criteria, the value of ground particle velocity may be computed from the following expression:
V = K1 [Q2/3/R] 1.25
Where
V = Particle velocity in mm/sec
K1 = Constant which may be normally taken as 880 for soil, weathered or soft rock and 1400 for hard rock.
Q = Charge per delay (kg), and R = Distance (m) from blast point
Based on the above equation, the ground particle velocities at different distances (1.5 m, 5 m, 10 m, 20 m, 40 m, 70 m, 100 m, 150 m and 200 m) are calculated considering K1 as 880 for soft rocks and 1400 for hard rocks. As per the Standard, for safety of structures from threshold damage, the ground particle velocity should not exceed the following:
Soil, Weathered or Soft rock 70 mm/sec Hard Rock 100 mm/sec
The results are presented in the Table 7 below for the maximum charge
Table 7 Peak Particle Velocity (V)
S. No Constant
(K1) Charge Per Delay Distance from the Blasting (R in meters)Peak Particle Velocity (V) mm/second
1.5 5 10 20 40 70 100 150 200
1 880 Q= 0.08Kg 64.6 14.3 6.0 2.5 1.1 0.5 0.3 0.2 0.1
2 1400 Q= 0.08Kg 102.8 22.8 9.6 4.0 1.7 0.8 0.5 0.3 0.2
It is estimated that with Q = 0.08 kg charge per delay shall result in particle velocity of 64.6 mm/sec in soft rock within a distance of 1.5 m, while in the hard rock the particle velocity is 102.8 mm/sec shall be within 1.5 m. There shall not be any structure with in 1.5 m of the quarry area, and it may be, concluded that the ground vibrations generated by blasting during the mining operations will not likely to effect the structures proposed in the vicinity of > 1.5 m from the point of blast. However the structures are proposed to locate 20m distance from the quarry activity. Concrete structures like office, store etc should not be proposed within the core mine area. These structures otherwise will be affected by the ground vibrations.
11.0 Water Quality Management
aquifer. Quarrying Operations will be carried out on the slope of the Rocky terrain. The ground water level in this area is 30m BGL and the quarrying will be done on above the surface level. Maximum depth of the quarry will be 5m BGL which is about 12m height from ground level, flooding by ground water is not anticipated. Hence neither ground water table nor the general surface drainage pattern is not affected, hence there will not be water pollution. There will be no change in quality of water. However during rainy months, there is a possibility of wet conditions developing in the working pit this will be minimized, if not altogether eliminated, by adopting simple techniques like digging trenches all round to drain off rainwater and preventing surface run off from entering and flooding working pit. The water from the pits will be pumped by deploying suitable pumps, if and when required, the mine drainage can be effectively managed and the pit kept dry to keep up the production schedule.
11.1 Wastewater generation and treatment
In this area water table is at greater depth of 30m BGL and the workings are carried out on top of the hill which is at 12m height. There are no wells or springs in the area. Hence there will not be adverse effect on ground water due to quarrying. The source of wastewater generation from domestic sources is expected to be approximately 0.7 KLD, which will be sent to septic tank followed by soak pit.
11.2 Water Management
Following measures will be adopted to mitigate the impact on the water resources:
The blasting activities will have to take care on the sinkholes, cracks and fissures in the site activities.
During excavation and drilling activities effort must be taken to avoid face collapse at these cracks and fissures.
To prevent surface water contamination by oil/grease, leak proof containers shall be used for storage and transportation of oil/grease. The floors of oil/grease handling area will be kept effectively impervious.
To prevent degradation and maintain the water quality during rainy season, adequate control measures should be adopted to check the mine run-off into the natural streams.
11.3 Garland drain and siltation pond
A catchment area treatment plan has been developed keeping in mind the results of the hydrology/ hydrogeology of the area and the climate data. As there are no perennial water sources running on or through the site, the mine water discharge is limited to the monsoon season only. To keep water from entering the mine during this period, a garland drain will be developed along the mine’s top bench, which will bend to guide the water to the nearest natural surface drain. Garland drain of 70m L x 1m W x 1m D will be constructed.
In terms of water quality, good mining practices are planned, additionally the natural state of surrounding areas, should ensure that rain water run-off from the mine does not contain any toxic elements. As the site has no overburden, potential discharge of sediments is quite limited and any residual particles which are washed down will be captured by a sump located at the lowest bench. The sump will be cleaned regularly and discharge water monitored consistently. If required, based on monitoring, an additional catch pit can be located at the main garland drain.
The sump proposed in the bottom bench will be designed based on the peak discharge and will be expanded over a period of time to accommodate the increasing quantum of water discharge. Presently, the capacity of the sump is designed to hold the entire quantum of peak discharge water. The garland drain shall be provided surrounding the mine area.
Garland drain and siltation pond need to be constructed of appropriate size to arrest silt and sediment flows from soil and mineral dumps. The water so collected will be utilized for watering the mine area, roads, green belt development etc. The drain should be regularly desilted and maintained. The garland drain (size, gradient and length) and sump capacity will be designed keeping 50% safety margin over and above the peak sudden rainfall and maximum discharge in the area adjoining the mine site. Sump capacity should also provide adequate retention period to provide proper settling of silt material. The surface water around the mine, and infrastructure will be regularly tested and appropriate control measures adopted in case of any pollutant is detected above the prescribed limits.
12.0 Waste Management plan
During five years operations a total rock mass of 9000 3
m will be excavated and 1080m3 of
