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SUBMITTED BY :-
ANCHAL GARG(05)
GGSIPU
•Environmental impact assessment is the
formal process used to predict the environmental
consequences (positive or negative) of a plan,
policy, program, or project prior to the decision to
move forward with the proposed action.
•The purpose of the assessment is to ensure that
decision makers consider the environmental
impacts when deciding whether or not to proceed
with a project.
•EIAs began to be used in the 1960s as part of a
rational decision making process.
•Checklists are known to be the simplest method
for the evaluation of any project impacts on the
different components of the environment.
What are eia used for:-
• Often part of a national planning process for
large scale developments
Which developments?
• Major new road network
• Airport and port development
• Building power stations
• Building dams and reservoirs
• Large scale housing project
How does an eia work?
• The EIA needs to be structured with a set of clear
aims
• It has to occur during the planning, design and
authorization stage of any development.
• It needs to be comprehensive, addressing all
potential impacts.
• There needs to be consultation and public
participation throughout the EIA process.
• The findings of the EIA should be part of the final
decision process.
LINEAR DEVELOPMENT
• Linear development” refers to those developments
that are constructed in a linear fashion across the
landscape; i.e.,
• power lines, roads, railways, pipelines (gas, oil),
telecommunications infrastructure and man-made
waterways.
• Linear development is often consequential to other
forms of commercial and industrial development.
ENVIRONMENTAL IMPACT :-
• Fragmentation of land or forests, disturbing or
destroying wildlife habitat, migration corridors and
other environmentally sensitive areas;
• Damage to streams where the linear development
crosses waterways;
• Disruption to natural drainage systems;
• Potential for soil erosion, stream sedimentation and
slope stability issues
• Increases in noise levels and disturbance
• Introduction of weeds and non-native species.
• Site clean-up and reclamation issues.
EIA for development projects
ENVIRONMENT IMPACTS
PHYSICAL RESOURCES :-
• Water hydrology:- A change in water hydrology may affect surface
water quality. sediment transport, water quantity including
alternations in the water, water logging of wells, change in
infiltration rates.
• Air quality:- There are two main sources of emissions during
construction namely, mobile sources and fixed sources. Mobile
sources are vehicles involved in construction activities. Fixed-
sources emissions include equipments like compressors, and
demolition/excavation activities.
• Soils :- soils are mainly affected through cut-and-fill operations
and soil erosion.
• Roadways in mountain terrain:- Highly unstable geological
conditions.
Continue…..
ECOLOGICAL RESOURCES
• Fisheries :-affected by erosion during both
construction and operation of project, spills of
toxic and hazardous material, alteration of water
hydrology.
• Forestry (wildlife) :- caused by site clearance,
improved accessibility leading to encroachment
by people.
Continue…
HUMAN USE VALUE
• Flood control :- project can adversely affect
flood control existing flood patterns, and flood
control system.
• Land-use :- altered by the effects of project
mainly owing to improved accessibility.
CASE STUDY
QUTAB MINAR – GURGAON MRTS
CORRIDOR ENVIRONMENTAL
IMPACT AND SOCIO ECONOMIC
ASSESSMENT
EIA for development projects
1. INTRODUCTION
• CORRIDOR- From Qutub minar to Gurgaon
• Distance = 14.47km
• Open in = 21st june 2010
• Stations in b/w= Chattarpur, Sultanpur,
Ghitorni, Arjangarh, Sikandarpur, M.G Road,
Iffco chowk, Huda city centre
2. ENVIRONMENTAL BASELINE
DATA
• Majority of data on water quality, vegetation, air and noise
quality was collected during field studies in the April 2004.
2.1 WATER AND SOIL ANALYSIS
 The water and soil samples have been tested for chemical analysiS.
 Most of the parameters are within the permissible limits except the two
values i.e TDS and Nitrates which are exceeding the limits.
 Based on this data, it could be concluded that sub soil and underground
water are unlikely to undergo any deteriorating effect due to proposed
MRTS structures and foundation.
 The texture of soil is mainly sandy. The higher concentration of phosphate
and organic matter is an indication of good fertility value. As metro will be
above ground hence it will not be in contact with soil and water.
EIA for development projects
EIA for development projects
2.2 FORESTRY
Most of the trees were planted along the roads in
the past.
The main species are Pipal, Neem, Kikar, Mango,
Ashok, Ficus and Bakaan, etc.
 No rare or endangered species of trees have
been noticed during field studies.
An inventory Reportof trees, likely to be lost is
presented in Table 1.3.
About 755 trees are existing on the proposed
alignment from Qutab Minar (30.95 km) to Sush
ant lok (47.003).
EIA for development projects
2.3 AIR QUALITY
 As a part of this study ambient air quality
monitoring (AAQM) has been carried out by
setting up ambient air quality monitoring
stations at five locations as shown in Table 1.4 for
the parameters SPM, CO, HC, and NOx.
The ambient air quality data indicates much
higher values of suspended particulate matter,
than the prescribed limits established by CPCB at
all the monitoring stations.
However the values of NOx and CO are within the
permissible limits.
EIA for development projects
2.4 SEISMICITY
• Project area falls in Zone(IV) of Seismic Zoning
Map of India.
• The India Meteorological Department (IMD)
has considered suitable seismic factor for
design purpose for Civil Engineering
structures. This factor needs to be
appropriately
incorporated while finalising civil designs.
2.5 NOISE
• RITES have measured noise
levels at different places in Delhi and Gurgaon alo
ng the project alignment at 2.0m away from
source as per standard practice.
• The noise levels so obtained are summarised in
Table 1.5.
• It could be concluded that the noise levels
recorded at various places are higher than
prescribed permissible levels of 65
dBA (day) and 55dBA (night).
EIA for development projects
3. IMPACT ASSESMENT
POSITIVE ENVIRONMENTAL IMPACTS –
• Traffic congestion reduction,
• Quick service and safety,
• Less fuel consumption,
• Reduction in Air Pollution,
• Better roads, and
• Employment opportunities
NEGATIVE ENVIRONMENTAL IMPACTS
(1)Impacts Due to Project Location
 Change of land use-. The change in land use in Delhi
Portion is estimated to be 16.5857ha
 Loss of trees- 755 trees lost,
the total value of these trees lost is Rs. 5.285 lakhs
 Loss of Historical and Cultural Monuments-no
impact
(2)Impacts due to project construction
• Soil Erosion and Health Risk at Construction Site-
Runoff from unprotected excavated areas can result in
excessive soil erosion, especially when erodibility of soil is
high.
• Traffic Diversions and Risk to Existing Buildings-As
most of the construction activities will be confined to centre
of the road and most of the roads are double lane, it will be
appropriate that the side lanes may also be utilised for traffic
and also for smooth progress of construction activities.
• Water Quality-Contamination of ground water can take place, if
the dump containing above substances gets leached and percolate
into the ground water table.
(3) Impacts due to proect operation
• Oil pollution- Oil spillage during change of lubricants, cleaning
and repair processes, in the maintenance Depot cum workshop for
maintenance of rolling stock, is very common.
• Noise-total noise level would be about 80.4 dB(A). However, due
to reduction of vehicular traffic, the road traffic noise as
compared with existing levels will come down by about 7 to 9%.
• Accidental hazards
• Water quality-CPHEEO has recommended 45litres/day, water
supply to persons working at railway stations.
• Railway station refuse- The total refuse generated at all the
stations of the present section under consideration is estimated to
be about 2.79 tonnes/day with the assumption that only about 25%
of the passengers visiting various stations will be producing refuse
EIA for development projects
4. ENVIRONMENTAL MONITORING
(1) WATER QUALITY-
Water quality parameters shall be monitored one year before the
construction, during the construction phase and also for at least three
years after the completion of the project (total 10 years).
Monitoring shall be carried out at least four times a year to cover
seasonal variations.
The parameters for monitoring would be: pH, Dissolved Oxygen,
Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD),
Total Coliform Count, Total Dissolved Solids, Chlorides, Nitrates,
Sulphates, Total Nitrogen, Total Phosphates, oils and greases etc.
The main monitoring stations could be at Qutab Minar, Sikandarpunr,
IFFCO Chowk, and the Sushant lok Proposed station.
The cost for water quality analysis works out to be Rs.5.76 lakhs.
Air Quality and Noise Levels-
• Ambient air quality and Noise levels should be
monitored one year before the construction,
during the construction phase and for at least
three years after the completion of the project
(total 10 years).
• The proposed monitoring programme for field
monitoring and laboratory analysis of air and
noise is given in Table.
• The cost for ambient air quality and Noise
levels monitoring works out to be Rs. 33.00 lakhs.
EIA for development projects
THANK YOU

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EIA for development projects

  • 1. SUBMITTED BY :- ANCHAL GARG(05) GGSIPU
  • 2. •Environmental impact assessment is the formal process used to predict the environmental consequences (positive or negative) of a plan, policy, program, or project prior to the decision to move forward with the proposed action. •The purpose of the assessment is to ensure that decision makers consider the environmental impacts when deciding whether or not to proceed with a project. •EIAs began to be used in the 1960s as part of a rational decision making process. •Checklists are known to be the simplest method for the evaluation of any project impacts on the different components of the environment.
  • 3. What are eia used for:- • Often part of a national planning process for large scale developments Which developments? • Major new road network • Airport and port development • Building power stations • Building dams and reservoirs • Large scale housing project
  • 4. How does an eia work? • The EIA needs to be structured with a set of clear aims • It has to occur during the planning, design and authorization stage of any development. • It needs to be comprehensive, addressing all potential impacts. • There needs to be consultation and public participation throughout the EIA process. • The findings of the EIA should be part of the final decision process.
  • 5. LINEAR DEVELOPMENT • Linear development” refers to those developments that are constructed in a linear fashion across the landscape; i.e., • power lines, roads, railways, pipelines (gas, oil), telecommunications infrastructure and man-made waterways. • Linear development is often consequential to other forms of commercial and industrial development.
  • 6. ENVIRONMENTAL IMPACT :- • Fragmentation of land or forests, disturbing or destroying wildlife habitat, migration corridors and other environmentally sensitive areas; • Damage to streams where the linear development crosses waterways; • Disruption to natural drainage systems; • Potential for soil erosion, stream sedimentation and slope stability issues • Increases in noise levels and disturbance • Introduction of weeds and non-native species. • Site clean-up and reclamation issues.
  • 8. ENVIRONMENT IMPACTS PHYSICAL RESOURCES :- • Water hydrology:- A change in water hydrology may affect surface water quality. sediment transport, water quantity including alternations in the water, water logging of wells, change in infiltration rates. • Air quality:- There are two main sources of emissions during construction namely, mobile sources and fixed sources. Mobile sources are vehicles involved in construction activities. Fixed- sources emissions include equipments like compressors, and demolition/excavation activities. • Soils :- soils are mainly affected through cut-and-fill operations and soil erosion. • Roadways in mountain terrain:- Highly unstable geological conditions.
  • 9. Continue….. ECOLOGICAL RESOURCES • Fisheries :-affected by erosion during both construction and operation of project, spills of toxic and hazardous material, alteration of water hydrology. • Forestry (wildlife) :- caused by site clearance, improved accessibility leading to encroachment by people.
  • 10. Continue… HUMAN USE VALUE • Flood control :- project can adversely affect flood control existing flood patterns, and flood control system. • Land-use :- altered by the effects of project mainly owing to improved accessibility.
  • 11. CASE STUDY QUTAB MINAR – GURGAON MRTS CORRIDOR ENVIRONMENTAL IMPACT AND SOCIO ECONOMIC ASSESSMENT
  • 13. 1. INTRODUCTION • CORRIDOR- From Qutub minar to Gurgaon • Distance = 14.47km • Open in = 21st june 2010 • Stations in b/w= Chattarpur, Sultanpur, Ghitorni, Arjangarh, Sikandarpur, M.G Road, Iffco chowk, Huda city centre
  • 14. 2. ENVIRONMENTAL BASELINE DATA • Majority of data on water quality, vegetation, air and noise quality was collected during field studies in the April 2004. 2.1 WATER AND SOIL ANALYSIS  The water and soil samples have been tested for chemical analysiS.  Most of the parameters are within the permissible limits except the two values i.e TDS and Nitrates which are exceeding the limits.  Based on this data, it could be concluded that sub soil and underground water are unlikely to undergo any deteriorating effect due to proposed MRTS structures and foundation.  The texture of soil is mainly sandy. The higher concentration of phosphate and organic matter is an indication of good fertility value. As metro will be above ground hence it will not be in contact with soil and water.
  • 17. 2.2 FORESTRY Most of the trees were planted along the roads in the past. The main species are Pipal, Neem, Kikar, Mango, Ashok, Ficus and Bakaan, etc.  No rare or endangered species of trees have been noticed during field studies. An inventory Reportof trees, likely to be lost is presented in Table 1.3. About 755 trees are existing on the proposed alignment from Qutab Minar (30.95 km) to Sush ant lok (47.003).
  • 19. 2.3 AIR QUALITY  As a part of this study ambient air quality monitoring (AAQM) has been carried out by setting up ambient air quality monitoring stations at five locations as shown in Table 1.4 for the parameters SPM, CO, HC, and NOx. The ambient air quality data indicates much higher values of suspended particulate matter, than the prescribed limits established by CPCB at all the monitoring stations. However the values of NOx and CO are within the permissible limits.
  • 21. 2.4 SEISMICITY • Project area falls in Zone(IV) of Seismic Zoning Map of India. • The India Meteorological Department (IMD) has considered suitable seismic factor for design purpose for Civil Engineering structures. This factor needs to be appropriately incorporated while finalising civil designs.
  • 22. 2.5 NOISE • RITES have measured noise levels at different places in Delhi and Gurgaon alo ng the project alignment at 2.0m away from source as per standard practice. • The noise levels so obtained are summarised in Table 1.5. • It could be concluded that the noise levels recorded at various places are higher than prescribed permissible levels of 65 dBA (day) and 55dBA (night).
  • 24. 3. IMPACT ASSESMENT POSITIVE ENVIRONMENTAL IMPACTS – • Traffic congestion reduction, • Quick service and safety, • Less fuel consumption, • Reduction in Air Pollution, • Better roads, and • Employment opportunities
  • 25. NEGATIVE ENVIRONMENTAL IMPACTS (1)Impacts Due to Project Location  Change of land use-. The change in land use in Delhi Portion is estimated to be 16.5857ha  Loss of trees- 755 trees lost, the total value of these trees lost is Rs. 5.285 lakhs  Loss of Historical and Cultural Monuments-no impact
  • 26. (2)Impacts due to project construction • Soil Erosion and Health Risk at Construction Site- Runoff from unprotected excavated areas can result in excessive soil erosion, especially when erodibility of soil is high. • Traffic Diversions and Risk to Existing Buildings-As most of the construction activities will be confined to centre of the road and most of the roads are double lane, it will be appropriate that the side lanes may also be utilised for traffic and also for smooth progress of construction activities. • Water Quality-Contamination of ground water can take place, if the dump containing above substances gets leached and percolate into the ground water table.
  • 27. (3) Impacts due to proect operation • Oil pollution- Oil spillage during change of lubricants, cleaning and repair processes, in the maintenance Depot cum workshop for maintenance of rolling stock, is very common. • Noise-total noise level would be about 80.4 dB(A). However, due to reduction of vehicular traffic, the road traffic noise as compared with existing levels will come down by about 7 to 9%. • Accidental hazards • Water quality-CPHEEO has recommended 45litres/day, water supply to persons working at railway stations. • Railway station refuse- The total refuse generated at all the stations of the present section under consideration is estimated to be about 2.79 tonnes/day with the assumption that only about 25% of the passengers visiting various stations will be producing refuse
  • 29. 4. ENVIRONMENTAL MONITORING (1) WATER QUALITY- Water quality parameters shall be monitored one year before the construction, during the construction phase and also for at least three years after the completion of the project (total 10 years). Monitoring shall be carried out at least four times a year to cover seasonal variations. The parameters for monitoring would be: pH, Dissolved Oxygen, Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Coliform Count, Total Dissolved Solids, Chlorides, Nitrates, Sulphates, Total Nitrogen, Total Phosphates, oils and greases etc. The main monitoring stations could be at Qutab Minar, Sikandarpunr, IFFCO Chowk, and the Sushant lok Proposed station. The cost for water quality analysis works out to be Rs.5.76 lakhs.
  • 30. Air Quality and Noise Levels- • Ambient air quality and Noise levels should be monitored one year before the construction, during the construction phase and for at least three years after the completion of the project (total 10 years). • The proposed monitoring programme for field monitoring and laboratory analysis of air and noise is given in Table. • The cost for ambient air quality and Noise levels monitoring works out to be Rs. 33.00 lakhs.