Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P. EIA Report Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd. Hyderabad RISK ASSESSMENT 7.1 RISK ASSESSMENT & DISASTER MANAGEMENT PLAN Risk Assessment is all about prevention of accidents and there is a need to take necessary steps to prevent it happening. The proposed opencast Granite mine mainly comprises of winning transporting and processing from the mine site. The main objectives of preparing a disaster management plan include: To protect workers in mines from safety and health hazards and risks in their works. To prevent or reduce the incidence and severity of illness and injury during mining operations. 7.2 PLANNING STAGE The risks of injuries can be significantly reduced during mining activity by designing low gradient roads and one way heavy vehicles movement which reduce the probability of runaway and collision accidents. Use of trained drivers and providing the vehicles with suitable appliances will reduce danger of being stuck by large moving vehicles within the mine site. Vehicles should be properly maintained in good working condition particularly the braking system to minimize the accidents. Well designed access and working platforms will also reduce the possibility of fall of any material or persons. 7.3 HEALTH AND SAFETY PRINCIPLES House Keeping - The provision and maintenance of a safe and healthy workplace is the most basic principle of health and safety. Dirty and untidy workplaces or walkways contribute to a very large
52
Embed
RISK ASSESSMENTenvironmentclearance.nic.in/writereaddata/online/RiskAssessment/... · Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages,
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
RISK ASSESSMENT
7.1 RISK ASSESSMENT & DISASTER MANAGEMENT PLAN
Risk Assessment is all about prevention of accidents and there is a
need to take necessary steps to prevent it happening. The proposed
opencast Granite mine mainly comprises of winning transporting
and processing from the mine site.
The main objectives of preparing a disaster management plan
include:
To protect workers in mines from safety and health hazards
and risks in their works.
To prevent or reduce the incidence and severity of illness and
injury during mining operations.
7.2 PLANNING STAGE
The risks of injuries can be significantly reduced during mining
activity by designing low gradient roads and one way heavy
vehicles movement which reduce the probability of runaway and
collision accidents.
Use of trained drivers and providing the vehicles with suitable
appliances will reduce danger of being stuck by large moving
vehicles within the mine site. Vehicles should be properly
maintained in good working condition particularly the braking
system to minimize the accidents. Well designed access and
working platforms will also reduce the possibility of fall of any
material or persons.
7.3 HEALTH AND SAFETY PRINCIPLES
House Keeping - The provision and maintenance of a safe and
healthy workplace is the most basic principle of health and safety.
Dirty and untidy workplaces or walkways contribute to a very large
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
proportion of trip and fall accidents. In the context of surface mining
the provision of well defined roadways and walkways clear of
obstruction, and regular cleaning up of spillage will greatly reduce the
potential for this type of accident. Lack of maintenance may well lead
to roadways and walkways being unsuitable for use.
The Work - The application of risk assessment depends upon a full
understanding of all aspects of the job being undertaken. In carrying
out a risk assessment in relation to a particular task the evaluation
must include a review of the knowledge, experience and training of
those persons carrying out the work.
Personal Competence - It follows that the knowledge, experience and
training of personnel involved in work is critical to the result of any
risk assessment. A knowledgeable, experienced well trained and
competently supervised workforce will be at a lower risk of accidents
occurring than a poorly trained and badly supervised workforce.
Co-ordination - a competent person should be given the
responsibility for overseeing and co-coordinating work. It is essential
that the co-coordinator ensures that everyone engaged in the work is
capable and understands the role of others and their responsibility for
each other. This is particularly important when contract workers
undertake part or all of the work to be carried out.
Dangerous Parts of Machinery - such as revolving parts, in-running
nips and entrapment between reciprocating parts as defined in
European and National standards should be protected to those
standards.
Workplaces - access to both above and below ground workplaces
should be by well constructed and maintained permanent fixed
means. When practical stairways and shallow inclined walkways are
preferred to vertical ladders, which in some circumstances can be the
cause of very high risk. The sides of all workplaces from which
persons may fall should always be protected.
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
Health Hazards - For the purposes of this document health hazards
should be interpreted as being harmful dust, vibration and noise
which is emitted during surface mining operations, as well as the
handling of heavy loads. While elimination and often suppression at
source is not presently available in some cases the normal control of
health hazards is still applicable in this industry.
Personal Protective Equipment (PPE) - should be of good
construction, suitable for the hazard e.g. a dust respirator fitted with
the correct filter to capture the particular hazardous dust, and
maintained to recommended standards. As personal protective
equipment only affords limited protection it should only be used as a
last resort and then as an interim arrangement until other steps are
taken to reduce the risk of personal injury to an acceptable level.
Traffic Movement - Should only take place within designated areas
and over suitable roadways. Adopting one way traffic movement
systems are preferred to two directional traffic systems. The risk of
accidents due to traffic movement is much less with a one way than a
two way system.
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
The general model for risk assessment for any mine activity is as follows:
7.4 DRILLING RISKS
Drilling is common to the winning of rocks and clay etc. The main
hazards associated with are:
Falls from the edge of a bench
Dust created during the drilling operations
Noise
Entrapment in or being stuck by a moving part of drilling
equipment
The highest risk will occur during the drilling of the first line of holes
parallel with the working edge of the bench. One of the measures that
Identify HazardsYes
Remove Hazards Yes
Yes
No
NoNo
Stop Assessment
Has control measure created new hazard
Evaluate the most important consequences
Evaluate riskDo precautions meet legal standards
Is risk acceptable Implement plan to reduce risk (control measure)
Review periodically and if ever changes occur
Fig - 7.1 : MODEL FOR RISK ASSESSMENT
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
can be taken to reduce the risk off the edge of the bench is to provide
suitable portable rail fencing which can be erected between the
drilling operations and edge of the bench.
7.5 DUSTS FROM MINING ACTIVITIES
Air borne contaminants such as rock dust, road dust are mainly
produced during mining operations. Persons exposed to excessive
dust for prolonged periods may suffer from permanent damage
diseases such as Silicosis. As far as possible the escape dust into
the atmosphere should be prevented particularly in stagnant
zones.
At OCP mine the dust suppression modeling studies indicate
ground level concentration of dust particles in the range of 0.0235
µg/m3 during all the winter season from the dust generating
sources. Dust generation can be controlled by water sprinkler
system on the mine haul roads and other locations. Provision of
treated mine water use for dust suppression will be implemented
in the mine.
7.6 FACE STABILITY AND LOADING
Face stability gives rise to rock falls or slides and this can arise
because of adverse geological falling or poor work methods. The
main hazard associated with loading is rock falling on to the driver
and soil poppling over due to uneven ground, failure of hydraulic
systems and falls while gaining access to operating cabins.
7.7 FIRST AID AT MINE SITE
Workers and supervisors should be able to respond quickly to
incidents and accidents and provide basic first aid and treatment
to injured persons. Rapid first-aid treatment can prevent further
serious health damage or even loss of life to injured persons. The
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
mining operator should ensure that suitable, regularly replenished
and properly maintained first-aid kit is provided at a strategic
location where mining operations are performed. The first-aid kit
should be easily accessible and ready for use at any time while any
person is at work. Have people trained in first aid.
The minimum equipment required to ensure adequate first-aid
treatment should include:
A stretcher for transporting persons unable to walk
A blanket for persons in shock
Sufficient bandages and sterile dressings for open wounds on
limbs, body and head
Splints for fractures of limbs
Disinfectants
Any other first-aid material that may be required due to the
nature of work and recommended by a competent physician.
7.7.1 Action Following a Mining Accident
At any mine where there has been an accident, the necessary
measures should be immediately taken to:
Remove injured mineworkers to a safe place for first-aid
treatment.
Eliminate further danger arising from the event.
Any worker involved in rescue operations should take reasonable
care for the safety and health of him or herself and not endanger
themselves by rash action where there are unknown risks.
No person should be allowed to enter the area where there has
been an accident, except when it has been made safe and express
permission is given by a competent person.
Every injury to a mineworker, however small, should be reported to
the person in charge of first aid at the mine for checking up and
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
treatment before the injured person returns to work or leaves the
mine.
Arrangements should be made for transporting injured or sick
persons to a hospital or other suitable medical facility, for example
through cooperation between mine sites in close proximity.
7.8 Personal Protective Equipment for Mine Workers
The mine operator will provide, free of charge, the personal protective
equipment that is to be worn when hazards cannot be eliminated and
ensure that it is worn properly and maintained in good condition.
The basic personal protective equipment should be:
Safety helmet (hard hat) where falling objects might create a
hazard.
Protective gloves when handling materials or performing work
which might cause injury to the hands.
Suitable protective footwear (e.g. safety shoes or rubber boots)
where there is a danger of slipping or of injury to the feet.
This minimum standard protection should be worn at all times in
and around the mine. Additional protective equipment should be
used as required :
Hearing protection where excessive noise levels are produced (e.g.
where compressors, drilling machines or pick-hammers are used).
Dust mask where excessive airborne dust is produced (e.g. during
drilling or rock-breaking).
Safety glasses/goggles where there is a danger from flying particles
that may cause injury to the eyes (e.g. where hard rock is to be
broken).
Other personal protection may also be required, such as:
Closely-fitting clothes when working with or around moving
machinery or equipment;
Safety belts and lines where there is a danger of falling.
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
7.9 Duties of the Mine Operator
The mine operator will:
Notify the mining authority before starting operations at any
mine and before discontinuing or abandoning any existing
mining activity.
Provide all the equipment, apparatus, facilities and finance to
ensure as far as reasonably practicable, good mining practice
and an appropriate standard of occupational safety and health
at the mine.
Make sure everyone understands their safety and health
responsibilities.
Appoint, depending upon the number of mineworkers employed
and the nature and extent of mining operations, one or more
competent persons supervisor to supervise and control the
operations at the mine.
Encourage the workforce to be actively involved in safety and
health.
7.10 Requirements for Employment in Opencast Mines
Work in an opencast mine often has to be performed in a hostile
and dangerous environment. It can be made safe and productive
by continual human effort. Such efforts cannot succeed unless all
workers have certain skills and a good knowledge of possible
hazards and risks related to mine operation. It is therefore vital to
have competent and experienced persons who should be
constantly on the site of the mine to supervise and control the
operations and carry out regular inspections.
Supervisors will have immediate charge of all persons employed
within the mine area of operation and will be responsible for the
safety, health and welfare of all persons assigned to them.
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
Each newly recruited mine worker will receive instructions,
guidance and supervision in his respective work from the
supervisor and adequate on-the-job training before being starting
work. This instruction will include:
Introduction to the working environment.
Health and safety aspects of the task to be assigned.
Hazard recognition and avoidance.
Hazards relating to explosives.
Ground control and working in areas of high walls.
Hazards of machinery and equipment.
Basic knowledge of first aid.
No mine worker will take any action at work which could cause
danger to other workers, damage to mining equipment or
obstruct production.
Every worker will fully comply with rules or instructions issued
by the mine operator and will make proper use of and take
reasonable care of any personal equipment provided for his
protection.
7.11 Action to Prevent Danger
Every mine worker while at work will:
Take reasonable care for the safety and health of himself or herself
and of other persons who may be affected by their acts or
omissions.
Comply with instructions given for his own safety and health and
those of others.
Report immediately to the supervisor any situation which he or she
considers hazardous and which he or she cannot correct
themselves. If this measure cannot be taken, the mineworker
should immediately warn all workers who could be in danger.
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
Report any accident, injury or dangerous occurrence which arises
in the course of or in connection with work.
7.12 Mine Facilities
As far as possible, at or near every site where mining is regularly
carried out, there will be:
A clearly marked storage facility for first-aid equipment.
A place to store safety and personal protection equipment.
A site to store mining tools and equipment.
Adequate washing, sanitary and changing facilities.
Adequate shelters accommodation for mine workers when
mining operations are located in remote areas.
7.13 Resettlement & Rehabilitation Package
No R&R packages, the proposed land is vacant land.
7.14 Hydrogeology and Remedial Measures
7.14.1Introduction
TOR for P. Gowtham Reddy has been prescribed by MoEF vide
letter No J-11015/342/2013-IA.II (M) dated 8-01-2014. Following
the stipulations contained in the TOR, the study on EIA and
preparation of Environmental Management Plan (EMP) has been
entrusted to M/s. Sri Sai Manasa Nature Tech (P) Ltd.,
(SSMNTech) Hyderabad, Environmental Consultants by the Project
Proponent.
In the TOR it was also prescribed to carryout a detailed Hydro-
geological Study of the area, impact on the surface and ground
water resources quality and quantity, water requirement,
availability and source, water conservation and rainwater
harvesting plans, Groundwater Elevation in the working depth and
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
permission to withdraw groundwater from the competent Authority
as indicated at items against Serial Numbers from 22 to 28, in the
TOR. The Consultants have assigned this study to M/s. Global
Consultants, Hyderabad, headed by former Southern Regional
Director, Central Ground Water Board, Ministry of Water
Resources, Government of India, a NABET recognized Functional
Area Expert (FAE) on Ground Water and Rainwater Harvesting
studies and a registered Ground Water Consultant of Government
of Andhra Pradesh. Accordingly the field study was undertaken in
the month of April 2014, after collection of necessary information
details from various sources.
7.14.2 Objective, Scope and Methodology of the Study :-
The proposed Project activity is production of black & colour
granite blocks through open cast semi-mechanized method of
extraction by developing benches of 6 m height to produce
approximately 2282 m3 / annum. Extraction of mineral from the
physical environment, formation of pits, dumps and development
of roads etc are likely to add certain changes in the rainfall storm
run-off generated in the area and water quality in terms of wash-
off from loose dumps. Statutory Authorities have mandated to
carry out detailed hydro-geological study of the area, impacts on
Ground water and surface hydrological regimes, prescribed to
adopt suitable rainwater harvesting plans and to obtain necessary
permission from Central Ground Water Authority in case of
intersection of ground water table in the mining, necessitating
dewatering of the mine pit.
In any given environment the occurrence and movement of ground
water and its quality and quantity is chiefly controlled and
governed by many factors such as Geographical Set–up, Climate
and Rainfall conditions, Hydrological features, Topography, Soil
Characteristics, the nature and thickness of underlying rock
formations and other related aspects that prevail in an area.
Therefore, the study envisages identifying the existing ground
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
water conditions comprising both quality and potential within the
Project Site and its neighborhood relate the projected mining
activity, identify the likely impacts on surface and ground water
resources and indicate mitigation measures. In order to
accomplish the proposed objective of the study, the scope and
methodology adopted is as follows :
i. Collection of the relevant data contained in the EIA and EMP
Reports, from the reports and maps of the Andhra Pradesh
State Ground Water Department (SGWD) Central Ground Water
Board (CGWB) Geological Survey of India (GSI), other
Institutions and Departments.
ii. Identify Inter-related and Inter-dependent key factors that play
vital role in the occurrence of ground water, its quality and
potential.
iii. Identify surface water resources in the Project Site and its
catchment‘s area.
iv. Assess the ground water resource potentials in the Catchment‘s
area of the Project Site.
v. Bring out various events and processes that comprise the
mining Project activity.
vi. Identify the Site specific environmental issues and mitigative
measures
vii. Suggest suitable Water conservation and Rain Water
Harvesting Plans and
viii. Compile a consolidated, comprehensive and meaningful report
of the Project Site and its catchment‘s area.
Acknowledgements:
The information and data contained in the Mining plan prepared
by Mr. G. Eswar Reddy, R Q P of Anantapur, Reports of Central
Ground Water Board, Southern Region, Ministry of Water
Resources Government of India, Andhra Pradesh State Ground
Water Department, Progress Reports of Geological Survey of India
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
and EIA & EMP Report of Sri Sai Manasa Nature Tech (P) Ltd.,
Hyderabad have been utilized in compilation of the present report.
During the present investigation, Environmental Engineer Mr.
Rakesh.K, of Sri Sai Manasa Nature Tech (P) Ltd. and Mr. Dharma
Raju Mining Supervisor of Proponents Company have accompanied
to the Project Site and its neighborhood. Proponent‘s
representative was available with us during the Study period and
provided all necessary cooperation and facilities for the study of
lease area and environs.
7.14.3. Geographical Set-Up
Mine site is on a hillock extending in East–West direction
surrounded by agricultural fields mostly cultivated using monsoon
rainfall. It is located close to a fair weather road connecting to
Kotta Venkatapuram Village from Ambodarapalli Village.
Ambodarapalli village is on Chittoor – Balijanaidu Kandriga road.
Ambodarapalli village is accessible by following a diversion road
near Ganagadhara Nellore (G D Nellore) on Chittoor – Puttur High
Way after traveling 15 km from Chittoor. The nearest Railway
Station is Chittoor which is 25 km from the Mine site. The nearest
Airport is at Tirupati and nearest Sea ports are Krishnapatnam
and Chennai.
The Mine lease area extent is 8.099 ha and falls in the village Sy.
Numbers 107/P and 13 /P in Ambodarapalli and Pattapalaiyam
Villages of G. D. Nellore Mandal. The Project site hill has Survey of
India Point Height of 302 representing an elevation of 302 m AMSL
and is the top most point of lease area located at Google Map
Coordinates 13˚10΄36.44"N: 79˚15΄16.70"E. The Google location of
one of the South–West corner points of the lease boundary with
fixed mark provided by Proponent is on the Granite rock out crop
located at Coordinates 13˚10΄35.4"N : 79˚15΄24.6"E, having
surface elevation of 265 m AMSL. Thus the surface elevation
difference between the maximum and minimum are 302 and 265
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
m AMSL respectively. Photograph showing the hillock of project
site is given below.
7.14.4 Climate And Rain Fall
Chittoor District experiences semi arid climate. It is one of the
chronically drought prone districts with variation in the rainfall in
space and time. District has only one meteorological station at
Arogyavaram (Madanapalli). State Government has set up Rain
Gauge stations in each Mandal head quarters at present.
The District receives rainfall from both S-W and N-E monsoons.
The area receives rainfall almost in all months except in the month
of March. The mean monthly rainfall is shown in the Figure–7.3.
The mean seasonal rainfall distribution is 416.5mm in south –
west monsoon (June-September), it is 362.2 mm in North – East
monsoon (October – December), it is 15.1 mm in Winter and 94.3
mm in summer months (March to May). The season wise
percentage distribution of Rainfall is 46.9% in S-W monsoon,
40.8% in NE monsoon, 1.7% in winter and 10.6% during summer.
The district Normal rainfall is 934 mm. The average normal
rainfall for the last decade is 888 mm. Areal distribution of rainfall
Project Site Hillock
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
varies as low as 600 mm in the West at Molakalacheruvu and
experiences a high of 1152 mm at Srikalahasthi in the East.
The five years moving average for the last 40 years data shows that
there is no cyclic trend in the rain fall pattern in between 1970 and
1985, however there is observable cyclic trend from 1985m
onwards for every 5 to 7 years.
Long Period Monthly Average rain fall of the district is shown in the
Figure-7.3
During the last 1999 – 2011 period the amount of rainfall in the
area ranges from 657.2 mm in 2003 to 1544 mm in 2005. The
Long period average (LPA) annual rainfall departure ranges from –
26% in 2002 to +74% in the year 2005. The annual rainfall,
season wise rainfall amounts, their percentages and annual long
period average departure are shown in the Table–7.1. The
cumulative departure is shown in the Figure–7.4.
The areal distribution annual total rain fall in the district is shown
in the Figure-7.5. Amount of rain fall received is less in the west
and it is high in the East
FIG – 7.3 :
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
TABLE 7.1 : THE ANNUAL RAINFALL, SEASON WISE RAINFALL
AMOUNTS, THEIR PERCENTAGES AND ANNUAL LONG PERIOD
AVERAGE DEPARTURE
FIGURE-7.4: Cumulative Departureof Annula Rainfall From
LPA
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
Figure-7.5
The areal distribution annual total rain fall in the district
December is the coolest moth with mean daily minimum of 15.4˚C
and mean daily maximum of 25.3˚C April and May are the hottest
months with mean daily maximum at 34.8˚C. The Relative
Humidity (RH) is about from 70% to 80% in the mornings and it is
between 60-65% in the afternoons in the period from July to
December. February to May is the dry period ranging between
25% and 40%. The Annual Potential Evapotranspiration (PET) is
about 1556 mm and monthly PET ranges from 89 mm in
December and 169 mm in March.
7.14.5Topographic Features
The mine lease area comprises an independent and isolated hillock
and it extends in East – West direction having more length than
the North – South width. Highest elevation is 302 m AMSL and it
slopes to South and North on either side. The Southern gradient is
gentler from 302 to about 260 m AMSL and northern gradient is
Project
Site
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
little sleeper from 302 to about 270 m AMSL. The Total deposit is
covered by huge blocks and boulders of rock fragments derived
from the underlying massive rock deposit. The lease area is devoid
of any tree or Forest cover and has only shrubs.
The area around the Mine lease area is dotted by hills and
undulating terrain with general surface slope leading to the River
Ponnai flowing in almost along a straight line from North – West to
South – East. The lowest surface elevation of the Ponnai River the
close to the project site is 235 m AMSL. The general land elevation
from the mine site to the River Ponnai ranges between 270 and
235 m AMSL. The average gradient in the area in the watershed
unit is between 240 and 260 m AMSL.
However, in the same watershed area there are bigger hillocks of
Avalakonda (405) in the North, Kondala Sethuru (.471) and Eddula
Konda (.450) in the North – East. There is Amudala Reserved
Forest (561) in the East of the project sire and Raghasikonda (490)
of Pachigunta Reserved Forest in the North – East. They are far
away from the mine lease area.
7.14.6Surface Hydrological Features
The Mine site which forms the core area has no surface water
Bodies or stream courses. The mine area forms a North Eastern
peripheral region of a small micro watershed extending from
Pattapallaiyam village at an elevation of about 300 m AMSL slopes
in South West direction to the lowest elevation of about 240 m
AMSL near Balekuppam village in the Tamilnadu State. The
drainage courses are not well defined in the upper reaches as they
are modified, altered and cultivated and at places they have been
diverted into small farm ponds to store storm water.
The Balekuppam drainage course meets the Ponnai River to the
South of the Village. The drainage course has miner irrigation
rainwater storage tanks at Agraharam, Kotta Venkatapuram and
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
Girigalapalle. All the water storage sources, Balekuppam drainage
course and Ponnai River course are found to be dry at the time
field study.
The mine site micro watershed is a part of the Ponnai River Sub
Basin of the major Palar River Basin which ultimately debouches
into the Bay of Bengal. The mine site micro basin is included in the
Koratlair stream let area for the purpose of Ground Water
Resources Assessment and has been put under the name of Srl.
No. 53 as Ctr _ Koratlair _ S R Puram_S R Puram Assessment unit
comprising this part of G. D. Nellore Mandal area in estimations
for total 75 units covering the entire Chittoor District by the
SWGD. The Assessment unit comprises of 2475 ha area of G D
Nellore Mandal out of the total Mandal area of 20212 ha along with
1891 ha of Palasamudram Mandal and 8524 ha of S. R. Puram
area. The Mine site micro watershed is this part of G. D. Nellore
that is included in this Assessment Unit.
Dry Balekuppam Drainage Course
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
Figure-7.6
Project Site Balekuppam Watershed Area
7.14.7GEOLOGICAL FEATURES
7.14.7.1Regional Geological Set-Up:
The different geological formations occurring in the mine site
neighbourhood can be broadly divided into three major units of
Archaean Group as Older Metamorphics, Migmatite Group and
Younger Intrusives. The generalized Stratigraphic Sequence is
given in the Table – 7.2.
Proposed Colour & Black Granite Mine of Mr. P. Gowtham Reddy at Ambodarapalli & Pathapalyam Villages, G. D. Nellore Mandal, Chittoor District, A.P.
EIA Report
Prepared by Sri Sai Manasa Nature Tech Pvt. Ltd.
Hyderabad
TABLE – 7.2 GENERALISED STRATIGRAPHIC SEQUENCE
Archaean
Peninsular
Gneissic Complex
Younger Intrusives Epidote veins
Quartz veins
Dolerite dykes
Gabbro dykes
Pegmatite Veins
Quartz- Feldspathic
veins
Migmatite Group Granites
Biotite Granite
Hornblende-
Granite- Gneiss
MigmatiteGneiss
Granitoid
Dharwars Older Metamophics Amphibolite Quartz
Mica-schist,
Banded
Ferruginous-
Quartzite
Older metamorphic belong to Dharwar Group of rocks. They occur
in the form of enclaves, Xenoliths Schlieren and undigested linear
patches in the granite mass. They show warping, gneissosity,
Ptygmatic folding with sharp or broken or deformed contacts with
the host rock.
The Migmatite Group comprising Peninsular Gneissic Complex