Initial Environment Examination · 2018-02-26 · Initial Environment Examination This report has been submitted to ADB by the Assam Power Distribution Company Limited, Guwahati and

Initial Environment Examination

This report has been submitted to ADB by the Assam Power Distribution Company Limited, Guwahati and is made publicly available in accordance with ADB’s Public Communications Policy (2011). It does not necessarily reflect the views of ADB. This report is an updated version of the IEE report posted in August 2010 available on https://www.adb.org/projects/documents/assam-power-sector-enhancement-investment-program-0

This updated initial environment examination report is a document of the borrower. The views expressed herein do not necessarily represent those of ADB's Board of Directors, Management, or staff, and may be preliminary in nature. In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of any territory or area.

Project Number: 41614-033 February 2018 Part B: Annexures

IND: Assam Power Sector Enhancement Investment Program - Tranche 2

Submitted by

Assam Power Distribution Company Limited, Guwahati

Assam Electricity Grid Corporation Limited

Assam Transmission System

Screening Questions

Dislocation or involuntary resettlement of people

Social conflicts relating to inconveniences in living conditions where construction interferes with pre-existing roads?

Hazardous driving conditions where construction interferes with pre-existing roads?

Poor sanitation and solid waste disposal in construction camps and work sites, and possible transmission of communicable diseases from workers to local populations?

Creation of temporary breeding habitats for mosquito vectors of disease.

Dislocation and compulsory resettlement of people living in right-of-way of the power transmission lines? Environmental disturbances associated with the maintenance of lines (e.g. routine control of vegetative height under the lines)? Facilitation of access to protected areas in case corridors traverse protected areas? Accident risks associated with maintenance of lines and related facilities? Health hazards due to electromagnetic fields, land subsidence, lowered groundwater table and salinization? Disturbances (e.g. noise and chemical pollutants) if herbicides are used to control vegetative height?


Yes No Remarkstower foundation location. The geological characteristic of T/L would not necessitate for blasting.

involuntary resettlement of √

No structure has been damage within the transmission line corridor. Hence, there will not be involuntary resettlement or physical dislocation of affected person for this transmission line.

o inconveniences in living conditions where construction √

There would be limited movement of vehicle on existing road for transporting construction material and inconvenience is likely to be for short duration limited to construction phase.

Hazardous driving conditions where existing √

No major impact is anticipated transportation of material will be for short duration of time. This may occur during transportation of constructioand towers. Contractors are advised to take proper precautions to avoid any such situation.

Poor sanitation and solid waste disposal in construction camps and work sites, and possible transmission of communicable diseases from workers to local

√ The sitting of construction camp and sensitization of labor would be required during construction period.

Creation of temporary breeding habitats √

Delaying of tower foundation construction after excavation would create temporary breeding habitat for mosquito vectors of disease.

Dislocation and compulsory resettlement way of the √

No persons are living within the transmission corridor. The detailed assessment widoing socio – economic census survey.

Environmental disturbances associated with the maintenance of lines (e.g. routine control of vegetative height under the

√

Clearance of vegetation will be required to maintain ROW compliance. However,concentrated to once single location thus no major impact will result.

Facilitation of access to protected areas in case corridors traverse protected √ Not involved

Accident risks associated with related √

Necessary safety measures needs be provided to those engaged for transmission line maintenance.

Health hazards due to electromagnetic fields, land subsidence, lowered groundwater table and salinization?

√ Vertical clearance of 6.1m is maintained between lowest conductor and ground surface (agriculture land).

Disturbances (e.g. noise and chemical pollutants) if herbicides are used to √

The use of herbicides is not envisaged for control vegetative height control.

146

Annexure

Remarks tower foundation location. The geological characteristic of T/L would not necessitate for

No structure has been damage within the transmission line corridor. Hence, there will not be involuntary resettlement or physical dislocation of affected person for this transmission line. There would be limited movement of vehicle on existing road for transporting construction material and inconvenience is likely to be for short duration

to construction phase. No major impact is anticipated transportation of material will be for short duration of time. This may occur during transportation of construction material and towers. Contractors are advised to take proper precautions to avoid any such situation.

The sitting of construction camp and sensitization of labor would be required during construction period.

Delaying of tower foundation construction after ate temporary breeding habitat

for mosquito vectors of disease. No persons are living within the transmission corridor. The detailed assessment will be done while

economic census survey. Clearance of vegetation will be required to maintain

However, it will not be concentrated to once single location thus no major


1m is maintained between lowest conductor and ground surface (agriculture

The use of herbicides is not envisaged for control



Appendix I: Environments, Hazards and Climate Changes

Environment Natural Hazards and Climate ChangeArid/Semi-arid and desert environments

Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high rainfall variability. Low vegetative cover. Resilient ecosystems & complex pastoral and systems, but medium certainty that 10decrease in water availability in next 40 years; projected increase in drought duration and severity under climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rainagriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysichazards may also occur in these environments.

Humid and sub-humid plains, foothills and hill country

More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10projected increase in droughts, heat waves and floods; increased erosion of loesslandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & cfrom variability, with rainincidence of forest and agriculturegeophysical hazards may also occur in these environm

River valleys/ deltas and estuaries and other low-lying coastal areas

River basins, deltas and estuaries in lowstorm surges associated with tropical cyclones/typhoons and sea level rise; natural (and human-induced) subsidence resulting from sediment compaction and ground water extraction; liquefaction of soft sediments as result of earthquake ground shaking. Tsunami possible/likely on some coasts. Lowland agriin these regions at significant risk.

Small islands Small islands generally have land areas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of small islands developing states. Lowsurge, tsunami and seathreatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands ofrequent landslides and tectonic environments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relat

Mountain ecosystems

Accelerated glacial melting, rock falls/ landslides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosmelts and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards m

Volcanic environments

Recently active volcanoes (erupted in last 10,000 years Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcaniand/or gas emissions and occasionally widespread ash fall.



Natural Hazards and Climate Change Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high

ability. Low vegetative cover. Resilient ecosystems & complex pastoral and systems, but medium certainty that 10–20% of dry lands degraded; 10decrease in water availability in next 40 years; projected increase in drought duration and

y under climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rainagriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysichazards may also occur in these environments. More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10-30% projected decrease in water availability projected increase in droughts, heat waves and floods; increased erosion of loesslandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & compromised food production from variability, with rain-fed agriculture yield reduced by 30% or more by 2020. Increased incidence of forest and agriculture-based insect infestations. Earthquakes and other geophysical hazards may also occur in these environments. River basins, deltas and estuaries in low-lying areas are vulnerable to riverine floods, storm surges associated with tropical cyclones/typhoons and sea level rise; natural (and

induced) subsidence resulting from sediment compaction and ground water extraction; liquefaction of soft sediments as result of earthquake ground shaking. Tsunami possible/likely on some coasts. Lowland agri-business and subsistence farming

egions at significant risk. Small islands generally have land areas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of

developing states. Low-lying islands are especially vulnerable to storm surge, tsunami and sea-level rise and, frequently, coastal erosion, with coral reefs threatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands often experience high rainfall intensities, frequent landslides and tectonic environments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relative to GDP. Accelerated glacial melting, rock falls/ landslides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosion in intermontane valleys. Enhanced snow

and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may also occur in these environments.Recently active volcanoes (erupted in last 10,000 years – see www.volcano.si.edu). Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eruptions including pyroclastic flows and mudflows/lahars and/or gas emissions and occasionally widespread ash fall.

147

Annexure


Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high ability. Low vegetative cover. Resilient ecosystems & complex pastoral and

20% of dry lands degraded; 10-30% projected decrease in water availability in next 40 years; projected increase in drought duration and

y under climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rain-fed agriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysical

More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and 30% projected decrease in water availability in next 40 years;

projected increase in droughts, heat waves and floods; increased erosion of loess-mantled landscapes by wind and water; increased gully erosion; landslides likely on steeper

ompromised food production fed agriculture yield reduced by 30% or more by 2020. Increased

based insect infestations. Earthquakes and other

lying areas are vulnerable to riverine floods, storm surges associated with tropical cyclones/typhoons and sea level rise; natural (and

induced) subsidence resulting from sediment compaction and ground water extraction; liquefaction of soft sediments as result of earthquake ground shaking.

business and subsistence farming

Small islands generally have land areas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of

lands are especially vulnerable to storm level rise and, frequently, coastal erosion, with coral reefs

threatened by ocean warming in some areas. Sea level rise is likely to threaten the ften experience high rainfall intensities,

frequent landslides and tectonic environments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive

Accelerated glacial melting, rock falls/ landslides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash

ion in intermontane valleys. Enhanced snow and fluctuating stream flows may produce seasonal floods and droughts. Melting of

permafrost in some environments. Faunal and floral species migration. Earthquakes, ay also occur in these environments.

see www.volcano.si.edu). Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to

c eruptions including pyroclastic flows and mudflows/lahars



REA CHECKLIST 220

Rapid Environmental Assessment (REA) Checklist Instructions:

(i) The project team completes this checklist to support the environmental classification of a project. It is to be attached to the environmental categorization form and submitted to Environment and Safeguards Division (RSES) for endorsement by Director, RSES and for approval by the Chief Compliance Officer.

(ii) This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary rePeoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender checklists.

(iii) Answer the questions assuming the “without mitigation” case. The purpose is to identify potential impacts. Use the “remarks” section to discuss any anticipated mitigation measures.

Country/Project Title:

Sector Division:

Screening Questions D. Project Sittin g Is the project area adjacent to or within any of the following environmentally sensitive areas? Cultural heritage site E. Protected Area Wetland Mangrove Estuarine Buffer zone of protected area Special area for protecting biodiversityF. Potential Environmental

Impacts Will the Project cause…

Encroachment on historical/ cultural areas, disfiguration of landscape and increased waste generation?

Encroachment on precious ecosystem (e.g. sensitive or protected areas)? Alteration of surface water hydrology of waterways crossed by roads and resulting in increased sediment in streams affected by increased soil erosion at the construction site? Damage to sensitive coastal/marine habitats by construction of submarine cables? Deterioration of surface water quality due to silt runoff and sanitary wastes from worker-based camps and chemicals used in construction?

Increased local air pollution due to rock crushing cutting and filling?

Chemical pollution resulting from chemical clearing of vegetation for


REA CHECKLIST 220 kV D/C LLILO of Mariani- Namrup Line on D/C Towers

Rapid Environmental Assessment (REA) Checklist – Power Transmissi on/ Distribution

The project team completes this checklist to support the environmental classification of a project. It is to be attached to the environmental categorization form and submitted to Environment and Safeguards

r endorsement by Director, RSES and for approval by the Chief Compliance Officer.

This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary resettlement and Indigenous Peoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender

Answer the questions assuming the “without mitigation” case. The purpose is to identify potential se the “remarks” section to discuss any anticipated mitigation measures.

India/ Assam Power Sector Enhancement Investment Program

Power Transmission/ Distribution

Yes No Remarks

Is the project area adjacent to or within any of the following

√ The realignment of 220 kV S/C Mariani on D/C Towers under Tranche sections with an increase of span length for a length of 0.178 km with addition of 3 nos. of tower locations. The rerouted stretch of T/L is not locatedenvironmentally sensitive area.

√ √ √ √ √

Special area for protecting biodiversity √ Environmental

Encroachment on historical/ cultural areas, disfiguration of landscape and √

No historical/cultural area or monument is present near project area. The waste generation and impact on local landscape is limited to location construction and stringing of T/L, which are site specific and temporary in nature. Encroachment is not done due to rerouting of T/L.

Encroachment on precious ecosystem

√ No sensitive area is located near the Project area.

Alteration of surface water hydrology of waterways crossed by roads and resulting in increased sediment in streams affected by increased soil

√ The proposed transmission hassurface water hydrology.

Damage to sensitive coastal/marine habitats by construction of submarine √

Geographically the sub-project is not located in coastal area. Hence, not applicable.

Deterioration of surface water quality sanitary wastes

based camps and √

Silt runoff is expected during tower foundation excavation, but the impact to surface water quality is not significant.

Increased local air pollution due to √

Not involved. Fugitive dust generated during tower foundation excavation and disturbed land surface is likely to induce air pollution. The dispersion of fugitive dust is likely to be localized.

√ The design standards of tower foundation are 100sq. mt hence, clearing of vegetation is most likely would be

148

Annexure

Namrup Line on D/C Towers

on/ Distribution



This checklist focuses on environmental issues and concerns. To ensure that social dimensions are settlement and Indigenous

Peoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender



Remarks

The realignment of 220 kV S/C Mariani - Namrup Line on D/C Towers under Tranche – II happened in four

with an increase of span length for a length of 0.178 km with addition of 3 nos. of tower locations. The rerouted stretch of T/L is not located or near to any of

No historical/cultural area or monument is present near The waste generation and impact on local

landscape is limited to location of towers foundation construction and stringing of T/L, which are site specific and temporary in nature. Encroachment is not done due

ted near the Project area.

has no impact on the

project is not located in coastal

Silt runoff is expected during tower foundation excavation, but the impact to surface water quality is not

Fugitive dust generated during tower foundation excavation and disturbed land surface is likely to induce air pollution. The dispersion of fugitive dust is likely to be

The design standards of tower foundation are 100sq. mt hence, clearing of vegetation is most likely would be



Screening Questions construction site?

Noise and vibration due to blasting and other civil works?


Social conflicts relating to inconveniences in living conditions where construction interferes with preexisting roads?

Hazardous driving conditions where construction interferes with preexisting roads?

Poor sanitation and solid waste disposal in construction camps and work sites, and possible transmission of communicable diseases from workers to local populations? Creation of temporary breeding habitats for mosquito vectors of disease. Dislocation and compulsory resettlement of people living in rightof-way of the power transmission lines? Environmental disturbancassociated with the maintenance of lines (e.g. routine control of vegetative height under the lines)? Facilitation of access to protected areas in case corridors traverse protected areas? Accident risks associated with maintenance of lines and related facilities? Health hazards due to electromagnetic fields, land subsidence, lowered groundwater table and salinization? Disturbances (e.g. noise and chemical pollutants) if herbicides are used to control vegetative height?


Yes No Remarksthrough manual clearing.

Noise and vibration due to blasting √

Noise impact would be limited to operation of equipment during excavation and will be localized to tower foundation location. The geological characteristic of T/L would not necessitate for blasting.

Dislocation or involuntary resettlement √


Social conflicts relating to inconveniences in living conditions

struction interferes with pre-√


Hazardous driving conditions where construction interferes with pre- √

No major impact is anticipated transportation of material will be for short duration of time. This may occur during transportation of construction material and towers. Contractors are advised to take proper precautions to avoid any such situation.

Poor sanitation and solid waste disposal in construction camps and work sites, and possible transmission of communicable diseases from


Creation of temporary breeding habitats for mosquito vectors of √


compulsory resettlement of people living in right-

way of the power transmission √

No persons are living within the transmission corridor. The detailed assessment will be done while doing socio – economic census survey.

Environmental disturbances associated with the maintenance of lines (e.g. routine control of vegetative √

Clearance of vegetation will be required to maintain ROW compliance. However, it will not be concentrated to once single location thus no major impa

Facilitation of access to protected areas in case corridors traverse √ Not involved

Accident risks associated with maintenance of lines and related √


Health hazards due to electromagnetic fields, land subsidence, lowered groundwater




149

Annexure

Remarks

mpact would be limited to operation of equipment during excavation and will be localized to tower foundation location. The geological characteristic of T/L would not necessitate for blasting.

ture has been damage within the transmission line corridor. Hence, there will not be involuntary resettlement or physical dislocation of affected person

There would be limited movement of vehicle on existing road for transporting construction material and inconvenience is likely to be for short duration limited to

No major impact is anticipated transportation of material will be for short duration of time. This may occur during transportation of construction material and towers. Contractors are advised to take proper precautions to

The sitting of construction camp and sensitization of during construction period.

Delaying of tower foundation construction after excavation would create temporary breeding habitat for

No persons are living within the transmission corridor. The detailed assessment will be done while doing socio

Clearance of vegetation will be required to maintain it will not be concentrated

to once single location thus no major impact will result.

Necessary safety measures needs be provided to those aged for transmission line maintenance.

Vertical clearance of 6.1m is maintained between lowest conductor and ground surface (agriculture land).






Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high rainfall variability. Low vegetative cover. Resilient ecosystems & complex pastoral and systems, but medium certainty that 10decrease in water availability in next 40 years; projected increase in drought duration and severity under climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rainagriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysical hazards may also occur in these environments.


More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10projected increase in droughts, heat waves and floods; increaslandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & compromised food production from variability, with rainincidence of forest and agriculturegeophysical hazards may also occur in these environments.



Small islands Small islands generally have land arNew Guinea and Timor with much larger land areas are commonly included in lists of small island developing states. Lowsurge, tsunami and seathreatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands often experience high rainfall intensities, frequent landslides and tectonic envinot uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relative to GDP.

Mountain ecosystems

Accelerated glacial melting, rock falls/ landslto increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosion in intermountain valleys. Enhanced snow melt and fluctuating stream flows maMelting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may also occur in these environments.


Recently active volcOften fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eruptions including pyroclastic flows and mudflows/lahars and/or gas emissions



Natural Hazards and Climate Change Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high rainfall variability. Low vegetative cover. Resilient ecosystems & complex pastoral and

ms, but medium certainty that 10–20% of dry lands degraded; 10decrease in water availability in next 40 years; projected increase in drought duration and severity under climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rainagriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysical hazards may also occur in these environments. More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10-30% projected decrease in water availability in next 40 years; projected increase in droughts, heat waves and floods; increased erosion of loesslandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & compromised food production from variability, with rain-fed agriculture yield reduced by 30% or more by 2020. Increased incidence of forest and agriculture-based insect infestations. Earthquakes and other geophysical hazards may also occur in these environments.

ver basins, deltas and estuaries in low-lying areas are vulnerable to riverine floods, storm surges associated with tropical cyclones/typhoons and sea level rise; natural (and

induced) subsidence resulting from sediment compaction and ground water traction; liquefaction of soft sediments as result of earthquake ground shaking.

Tsunami possible/likely on some coasts. Lowland agri-business and subsistence farming in these regions at significant risk. Small islands generally have land areas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of small island developing states. Low-lying islands are especially vulnerable to storm surge, tsunami and sea-level rise and, frequently, coastal erosion, with coral reefs threatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands often experience high rainfall intensities, frequent landslides and tectonic environments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relative to GDP. Accelerated glacial melting, rock falls/ landslides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosion in intermountain valleys. Enhanced snow melt and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may also occur in these

Recently active volcanoes (erupted in last 10,000 years – see www.volcano.si.edu). Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eruptions including pyroclastic flows and mudflows/lahars and/or gas emissions and occasionally widespread ash fall.

150

Annexure


Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high rainfall variability. Low vegetative cover. Resilient ecosystems & complex pastoral and

20% of dry lands degraded; 10-30% projected decrease in water availability in next 40 years; projected increase in drought duration and severity under climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rain-fed agriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysical


ed erosion of loess-mantled landscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & compromised food production

uced by 30% or more by 2020. Increased based insect infestations. Earthquakes and other


induced) subsidence resulting from sediment compaction and ground water traction; liquefaction of soft sediments as result of earthquake ground shaking.


eas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of

lying islands are especially vulnerable to storm frequently, coastal erosion, with coral reefs

threatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands often experience high rainfall intensities,

ronments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive

ides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosion in intermountain valleys. Enhanced

y produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may also occur in these

see www.volcano.si.edu). Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eruptions including pyroclastic flows and mudflows/lahars



REA CHECKLIST 220 kV


(i) The project team completes this checklist to be attached to the environmental categorization form and submitted to Environment and Safeguards Division (RSES) for endorsement by Director, RSES and for approval by the Chief Compliance O

(ii) This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary resettlement and Indigenous Peoples; (b) poverty reduction handbook; (c) stachecklists.



Sector Division:

Screening Questions G. Project Sitting Is the project area adjacent to or within any of the following environmentally sensitive areas? Cultural heritage site H. Protected Area Wetland Mangrove Estuarine Buffer zone of protected area Special area for protecting biodiversityI. Potential Environmental ImpactsWill the Project cause… Encroachment on historical/ cultural areas, disfiguration of landscape and increased waste generation? Encroachment on precious ecosystem (e.g. sensitive or protected areas)? Alteration of surface water hydrology of waterways crossed by roads and resulting in increased sediment in streams affected by increased soil erosion at the construction site? Damage to sensitive coastal/marine habitats by construction of submarine cables? Deterioration of surface water quality due to silt runoff and sanitary wastes from worker-based camps and chemicals used in construction? Increased local air pollution due to rock crushing cutting and filling? Chemical pollution resulting from chemical clearing of vegetation for construction site?


Dislocation or involuntary resettlement of


kV D/C LLILO of Samaguri - Balipara (PG) Line at Sonabil

Rapid Environmental Assessment (REA) Checklist – Power Transmission/ Distribution

The project team completes this checklist to support the environmental classification of a project. It is to be attached to the environmental categorization form and submitted to Environment and Safeguards Division (RSES) for endorsement by Director, RSES and for approval by the Chief Compliance O


Answer the questions assuming the “without mitigation” case. The purpose is to identify potential impacts. Use the “remarks” section to discuss any anticipated mitigation measures.



Yes No Remarks

Is the project area adjacent to or within onmentally

√

The site area does not pass through any Environmental/ Ecological sensitive area. The transmission line passes through private agriculture land with minimal vegetation covers in the ROW.

√ √ √ √ √

Special area for protecting biodiversity √ Environmental Impacts


No historical/cultural area or monument is present near project area.



Alteration of surface water hydrology of oads and

resulting in increased sediment in streams affected by increased soil

√ The proposed transmission have no impact on the surface water hydrology.

Damage to sensitive coastal/marine marine √


Deterioration of surface water quality due to silt runoff and sanitary wastes from

based camps and chemicals used √ No impact on surface water quality is anticipated.

Increased local air pollution due to rock √ Not involved.

√ The design standards of tower fomt hence, clearing of vegetation is most likely would be through manual clearing.

Noise and vibration due to blasting and √

Noise impact would be limited to operation of equipment during excavation and will be loctower foundation location. The geological characteristic of T/L would not necessitate for blasting.

Dislocation or involuntary resettlement of √ No structure has been damage within the

151

Annexure

Balipara (PG) Line at Sonabil


to support the environmental classification of a project. It is to be attached to the environmental categorization form and submitted to Environment and Safeguards Division (RSES) for endorsement by Director, RSES and for approval by the Chief Compliance Officer.

This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary resettlement and Indigenous

ff guide to consultation and participation; and (d) gender

Answer the questions assuming the “without mitigation” case. The purpose is to identify potential impacts. Use the “remarks” section to discuss any anticipated mitigation measures.


Remarks


torical/cultural area or monument is present

No sensitive area is located near the Project area.

The proposed transmission have no impact on the

project is not located in coastal area. Hence, not applicable.

on surface water quality is anticipated.

The design standards of tower foundation are 100sq. mt hence, clearing of vegetation is most likely would

Noise impact would be limited to operation of equipment during excavation and will be localized to tower foundation location. The geological characteristic of T/L would not necessitate for

No structure has been damage within the



Screening Questions people





Dislocation and compulsory resettlement of people living in right-of-way of the power transmission lines? Environmental disturbances associated with the maintenance of lines (e.g. routine control of vegetative height under the lines)? Facilitation of access to protected areas in case corridors traverse protected areas? Accident risks associated with maintenance of lines and rfacilities? Health hazards due to electromagnetic fields, land subsidence, lowered groundwater table and salinization? Disturbances (e.g. noise and chemical pollutants) if herbicides are used to control vegetative height?


Yes No Remarkstransmission line corridor. Hence, there will notinvoluntary resettlement or physical dislocation of affected person for this transmission line.

Social conflicts relating to inconveniences in living conditions where construction √

There would be limited movement existing road for transporting construction material and inconvenience is likely to be for short duration limited to construction phase.



d waste disposal in construction camps and work sites, and possible transmission of communicable diseases from workers to local







√

Clearance of vegetation will be required to maintain ROW compliance. However it will not be concentrated to once single location thus no major impact will result.








152

Annexure

Remarks transmission line corridor. Hence, there will not be involuntary resettlement or physical dislocation of affected person for this transmission line. There would be limited movement of vehicle on existing road for transporting construction material and inconvenience is likely to be for short duration limited to construction phase.

s anticipated transportation of material will be for short duration of time. This may occur during transportation of construction material and towers. Contractors are advised to take proper precautions to avoid any such situation.





However it will not be concentrated to once single location thus no major


m is maintained between lowest conductor and ground surface (agriculture






Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high rainfall variability. Low vegetative cover. Resilient ecosystems & complex pastoral and systems, but medium certainty that 10decrease in water availability in next 40 years; projected increase in drought duration and severity under climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rainagriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysicalhazards may also occur in these environments.


More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10projected increase in droughts, heat waves and floods; increased erosion of loesslandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & comfrom variability, with rainincidence of forest and agriculturegeophysical hazards may also occur in these environmen



Small islands Small islands generally have land areas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of small island developing states. Lowsurge, tsunami and seathreatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands oftfrequent landslides and tectonic environments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relativ

Mountain ecosystems

Accelerated glacial melting, rock falls/ landslides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosiomelt and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may


Recently active volcanoes (erupted in last 10,000 years Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eand/or gas emissions and occasionally widespread ash fall.




ility. Low vegetative cover. Resilient ecosystems & complex pastoral and systems, but medium certainty that 10–20% of dry lands degraded; 10decrease in water availability in next 40 years; projected increase in drought duration and

under climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rainagriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysicalhazards may also occur in these environments. More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10-30% projected decrease in water availability inprojected increase in droughts, heat waves and floods; increased erosion of loesslandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & compromised food production from variability, with rain-fed agriculture yield reduced by 30% or more by 2020. Increased incidence of forest and agriculture-based insect infestations. Earthquakes and other geophysical hazards may also occur in these environments. River basins, deltas and estuaries in low-lying areas are vulnerable to riverine floods, storm surges associated with tropical cyclones/typhoons and sea level rise; natural (and


gions at significant risk. Small islands generally have land areas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of small island developing states. Low-lying islands are especially vulnerable to storm surge, tsunami and sea-level rise and, frequently, coastal erosion, with coral reefs threatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands often experience high rainfall intensities, frequent landslides and tectonic environments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relative to GDP. Accelerated glacial melting, rock falls/ landslides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosion in intermontane valleys. Enhanced snow melt and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may also occur in these environments.Recently active volcanoes (erupted in last 10,000 years – see www.volcano.si.edu). Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eruptions including pyroclastic flows and mudflows/lahars and/or gas emissions and occasionally widespread ash fall.

153

Annexure


Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high ility. Low vegetative cover. Resilient ecosystems & complex pastoral and


under climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rain-fed agriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysical



promised food production fed agriculture yield reduced by 30% or more by 2020. Increased






nds are especially vulnerable to storm level rise and, frequently, coastal erosion, with coral reefs

threatened by ocean warming in some areas. Sea level rise is likely to threaten the en experience high rainfall intensities,



n in intermontane valleys. Enhanced snow melt and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes,

also occur in these environments. see www.volcano.si.edu).

Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to ruptions including pyroclastic flows and mudflows/lahars



REA CHECKLIST 132kV D/C LILO of Depota



(ii) This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary resettlePeoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender checklists.



Sector Division:

Screening Questions J. Project Sitting Is the project area adjacent to or within any of the following environmentally sensitive areas? Cultural heritage site K. Protected Area Wetland Mangrove Estuarine Buffer zone of protected area Special area for protecting biodiversityL. Potential Environmental ImpactsWill the Project cause… Encroachment on historical/ cultural areas, disfiguration of landscape and increased waste generation? Encroachment on precious ecosystem (e.g. sensitive or protected areas)? Alteration of surface water hydrology of waterways crossed by roads and resulting in increased sediment in streams affected by increased soil erosion at the construction site? Damage to sensitive coastal/marine habitats by construction of submarine cables? Deterioration of surface water quality due to silt runoff and sanitary wastes from worker-based camps and chemicals used in construction? Increased local air pollution due to rock crushing cutting and filling? Chemical pollution resulting from chemical clearing of vegetation for construction site?




REA CHECKLIST 132kV D/C LILO of Depota - Gohpur Line at Sonabil

Rapid Environmental Assessment (REA) Checklist – Power Transmission/ Dis


rsement by Director, RSES and for approval by the Chief Compliance Officer.

This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary resettlePeoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender

Answer the questions assuming the “without mitigation” case. The purpose is to identify potential “remarks” section to discuss any anticipated mitigation measures.



Yes No Remarks

Is the project area adjacent to or within any of the following environmentally

√


√ √ √ √ √


















154

Annexure

Gohpur Line at Sonabil

Power Transmission/ Dis tribution






Remarks































√









155

Annexure















Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high rainfall variability. Low vegetative cover. Resilient ecosystems & complex pastoral and systems, but medium certainty that 10decrease in water availability in next 40 years; projected increase in drought duration and severity under climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rainagriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysicahazards may also occur in these environments.


More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10projected increase in droughts, heat waves and floods; increased erosion of loesslandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & cofrom variability, with rainincidence of forest and agriculturegeophysical hazards may also occur in these environme



Small islands Small islands generally have land areas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of small island developing states. Lowsurge, tsunami and seathreatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands offrequent landslides and tectonic environments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relati

Mountain ecosystems

Accelerated glacial melting, rock falls/ landslides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosimelt and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may


Recently active volcanoes (erupted in last 10,000 years Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic and/or gas emissions and occasionally widespread ash fall.




bility. Low vegetative cover. Resilient ecosystems & complex pastoral and systems, but medium certainty that 10–20% of dry lands degraded; 10decrease in water availability in next 40 years; projected increase in drought duration and

under climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rainagriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysicahazards may also occur in these environments. More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10-30% projected decrease in water availability iprojected increase in droughts, heat waves and floods; increased erosion of loesslandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & compromised food production from variability, with rain-fed agriculture yield reduced by 30% or more by 2020. Increased incidence of forest and agriculture-based insect infestations. Earthquakes and other geophysical hazards may also occur in these environments. River basins, deltas and estuaries in low-lying areas are vulnerable to riverine floods, storm surges associated with tropical cyclones/typhoons and sea level rise; natural (and


egions at significant risk. Small islands generally have land areas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of small island developing states. Low-lying islands are especially vulnerable to storm surge, tsunami and sea-level rise and, frequently, coastal erosion, with coral reefs threatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands often experience high rainfall intensities, frequent landslides and tectonic environments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relative to GDP. Accelerated glacial melting, rock falls/ landslides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosion in intermontane valleys. Enhanced snow melt and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may also occur in these environments.Recently active volcanoes (erupted in last 10,000 years – see www.volcano.si.edu). Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eruptions including pyroclastic flows and mudflows/lahars and/or gas emissions and occasionally widespread ash fall.

156

Annexure


Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high bility. Low vegetative cover. Resilient ecosystems & complex pastoral and





mpromised food production fed agriculture yield reduced by 30% or more by 2020. Increased






ands are especially vulnerable to storm level rise and, frequently, coastal erosion, with coral reefs

threatened by ocean warming in some areas. Sea level rise is likely to threaten the ten experience high rainfall intensities,



on in intermontane valleys. Enhanced snow melt and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes,


Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to eruptions including pyroclastic flows and mudflows/lahars



REA CHECKLIST 132kV D/C LILO of Jorhat Bokakhat Line at Jorhat (West)


(iv) The project team completes this checklist to support the environmental classification of a project. It is to be attached to the environmental categorization form and submitted to Environment and Safeguards Division (RSES) for endorsement by Director, RSES and for approval by the Chief Compliance Officer.

(v) This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary rePeoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender checklists.

(vi) Answer the questions assuming the “without mitigation” case. The purpose is to identify potential impacts. Use the “remarks” section to discuss any anticipated mitigation measures.


Sector Division:

Screening Questions M. Project Sittin g Is the project area adjacent to or within any of the following environmentally sensitive areas? Cultural heritage site N. Protected Area Wetland Mangrove Estuarine Buffer zone of protected area Special area for protecting biodiversityO. Potential Environmental ImpactsWill the Project cause… Encroachment on historical/ cultural areas, disfiguration of landscape and increased waste generation? Encroachment on precious ecosystem (e.g. sensitive or protected areas)? Alteration of surface water hydrology of waterways crossed by roads and resulting in increased sediment in streams affected by increased soil erosion at the construction site? Damage to sensitive coastal/marine habitats by construction of submarine cables? Deterioration of surface water quality due to silt runoff and sanitary wastes from worker-based camps and chemicals used in construction? Increased local air pollution due to rock crushing cutting and filling? Chemical pollution resulting from chemical clearing of vegetation for construction site?





Rapid Environmental Assessment (REA) Checklist – Power Transmissio n/ Distribution







Yes No Remarks


√


√ √ √ √ √


















157

Annexure


n/ Distribution



This checklist focuses on environmental issues and concerns. To ensure that social dimensions are settlement and Indigenous




Remarks































√









158

Annexure





















Mountain ecosystems











159

Annexure






















REA CHECKLIST 132kV D/C LILO of Namrup Tinsukia Line at Bordubi



(ii) This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary resettlePeoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender checklists.



Sector Division:

Screening Questions P. Project Sitting Is the project area adjacent to or within any of the following environmentally sensitive areas? Cultural heritage site Q. Protected Area Wetland Mangrove Estuarine Buffer zone of protected area Special area for protecting biodiversityR. Potential Environmental ImpactsWill the Project cause… Encroachment on historical/ cultural areas, disfiguration of landscape and increased waste generation? Encroachment on precious ecosystem (e.g. sensitive or protected areas)? Alteration of surface water hydrology of waterways crossed by roads and resulting in increased sediment in streams affected by increased soil erosion at the construction site? Damage to sensitive coastal/marine habitats by construction of submarine cables? Deterioration of surface water quality due to silt runoff and sanitary wastes from worker-based camps and chemicals used in construction? Increased local air pollution due to rock crushing cutting and filling? Chemical pollution resulting from chemical clearing of vegetation for construction site?





Rapid Environmental Assessment (REA) Checklist – Power Transmission/ Dis



This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary resettlePeoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender




Yes No Remarks


√


√ √ √ √ √


















160

Annexure


Power Transmission/ Dis tribution






Remarks































√









161

Annexure





















Mountain ecosystems











162

Annexure






















REA CHECKLIST 2 nd



(ii) This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary resePeoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender checklists.



Sector Division:

Screening Questions S. Project Sitting Is the project area adjacent to or within any of the following environmentally sensitive areas? Cultural heritage site T. Protected Area Wetland Mangrove Estuarine Buffer zone of protected area Special area for protecting biodiversityU. Potential Environmental ImpactsWill the Project cause… Encroachment on historical/ cultural areas, disfiguration of landscape and increased waste generation? Encroachment on precious ecosystem (e.g. sensitive or protected areas)? Alteration of surface water hydrology of waterways crossed by roads and resulting in increased sediment in streams affected by increased soil erosion at the construction site? Damage to sensitive coastal/marine habitats by construction of submarine cables?Deterioration of surface water quality due to silt runoff and sanitary wastes from workerbased camps and chemicals used in construction? Increased local air pollution due to rock crushing cutting and filling? Chemical pollution resulting from chemical clearing of vegetation for construction site?



Assam Electricity Grid Corporation Limited nd Circuit of Samaguri – Lanka (Sankardevnagar) Line

Rapid Environmental Assessment (REA) Checklist – Power Transmission/


endorsement by Director, RSES and for approval by the Chief Compliance Officer.


Answer the questions assuming the “without mitigation” case. The purpose is to identify potential he “remarks” section to discuss any anticipated mitigation measures.



Yes No Remarks

Is the project area adjacent to or within any of the following environmentally sensitive

√ The site area does not pass through any Environmental/ Ecological sensitive area. The transmission line mainly passes through private agriculture land with minimal vegetation covers in the ROW.

√ √ √ √ √


Encroachment on historical/ cultural areas, disfiguration of landscape and increased √


Encroachment on precious ecosystem (e.g. √


Alteration of surface water hydrology of ed by roads and resulting in

increased sediment in streams affected by increased soil erosion at the construction


Damage to sensitive coastal/marine habitats of submarine cables?

√ Geographically the sub-project is not located in coastal area. Hence, not applicable.

Deterioration of surface water quality due to silt runoff and sanitary wastes from worker-based camps and chemicals used in

√ No impact on surface water quality is anticipated.


Chemical pollution resulting from chemical clearing of vegetation for construction site?

√ Clearing of vegetation isthrough manual clearing.

Noise and vibration due to blasting and other √

No major impact on noise level is anticipated as only stringing activity is involved.The geological characteristic of T/L would not necessitate blasting.

Dislocation or involuntary resettlement of √

No structure has been damage within the transmission line corridor. Hence, there will not be involuntary resettlement or physical dislocation of affected person for this

163

Annexure

Lanka (Sankardevnagar) Line



endorsement by Director, RSES and for approval by the Chief Compliance Officer.

This checklist focuses on environmental issues and concerns. To ensure that social dimensions are ttlement and Indigenous


Answer the questions assuming the “without mitigation” case. The purpose is to identify potential he “remarks” section to discuss any anticipated mitigation measures.


Remarks

The site area does not pass through any Environmental/ Ecological sensitive area. The transmission line mainly passes through private agriculture land with minimal vegetation covers in

No historical/cultural area or monument is .

No sensitive area is located near the Project

The proposed transmission have no impact on the surface water hydrology.


impact on surface water quality is anticipated.

Clearing of vegetation is most likely would be

No major impact on noise level is anticipated as only stringing activity is involved.The geological characteristic of T/L would not necessitate for

No structure has been damage within the transmission line corridor. Hence, there will not be involuntary resettlement or physical dislocation of affected person for this



Screening Questions


Hazardous driving conditions where construction interferes with preroads?

Poor sanitation and solid waste disposal in construction camps and work sites, and possible transmission of communicable diseases from workers to local populations?Creation of temporary breeding habitats for mosquito vectors of disease. Dislocation and compulsory resettlement of people living in right-of-way of the power transmission lines?

Environmental disturbances associated with the maintenance of lines (e.g. routine control of vegetative height under the lines)?

Facilitation of access to protected areas in case corridors traverse protected areas?

Accident risks associated with maintenance of lines and related facilities?

Health hazards due to electromagnetic fields, land subsidence, lowered groundwater table and salinization? Disturbances (e.g. noise and chemical pollutants) if herbicides are used to control vegetative height?


Yes No Remarkstransmission line.


There would be limited movement of vehicle on existing road for transporting during stringing activity.

ions where construction interferes with pre-existing √

No major impact is anticipated transportation of material will be for short duration of time. Contractors are advised to take proper precautions to avoid any such situation.

d solid waste disposal in construction camps and work sites, and possible transmission of communicable diseases from workers to local populations?

√ The sitting of construction camp and sensitization of labor would be required during stringing activity.

Creation of temporary breeding habitats for √

No impact is anticipated as only stringing activity is involved.

Dislocation and compulsory resettlement of way of the power √

No persons are living within the transmission corridor.

Environmental disturbances associated with the maintenance of lines (e.g. routine control of vegetative height under the lines)?

√

Clearance of vegetation will be required to maintain ROW compliance. Hconcentrated to once single location thus no major impact will result.

Facilitation of access to protected areas in case corridors traverse protected areas?

√ Not involved

Accident risks associated with maintenance √


Health hazards due to electromagnetic fields, land subsidence, lowered groundwater table √

Vertical clearance of 6.1m lowest conductor and ground surface (agriculture land).

Disturbances (e.g. noise and chemical pollutants) if herbicides are used to control √


164

Annexure

Remarks

There would be limited movement of vehicle on existing road for transporting during stringing

No major impact is anticipated transportation of material will be for short duration of time. Contractors are advised to take proper precautions to avoid any such situation.

The sitting of construction camp and sensitization of labor would be required during stringing

No impact is anticipated as only stringing activity

persons are living within the transmission

Clearance of vegetation will be required to maintain ROW compliance. However it will not be concentrated to once single location thus no

Necessary safety measures needs be provided to those engaged for transmission line

Vertical clearance of 6.1m is maintained between lowest conductor and ground surface (agriculture








More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10projected increase in droughts, heat waves and floods; increased erosion of loesslandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & comprfrom variability, with rainincidence of forest and agriculturegeophysical hazards may also occur in these environments



Small islands Small islands generally have land areas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of small island developing states. Lowsurge, tsunami and seathreatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands oftenfrequent landslides and tectonic environments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relative

Mountain ecosystems

Accelerated glacial melting, rock falls/ landslides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosion melt and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may al


Recently active volcanoes (erupted in last 10,000 years Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eruand/or gas emissions and occasionally widespread ash fall.




ity. Low vegetative cover. Resilient ecosystems & complex pastoral and systems, but medium certainty that 10–20% of dry lands degraded; 10decrease in water availability in next 40 years; projected increase in drought duration and

der climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rainagriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysical azards may also occur in these environments.

More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10-30% projected decrease in water availability in nprojected increase in droughts, heat waves and floods; increased erosion of loesslandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & comprfrom variability, with rain-fed agriculture yield reduced by 30% or more by 2020. Increased incidence of forest and agriculture-based insect infestations. Earthquakes and other geophysical hazards may also occur in these environments. River basins, deltas and estuaries in low-lying areas are vulnerable to riverine floods, storm surges associated with tropical cyclones/typhoons and sea level rise; natural (and


ons at significant risk. Small islands generally have land areas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of small island developing states. Low-lying islands are especially vulnerable to storm surge, tsunami and sea-level rise and, frequently, coastal erosion, with coral reefs threatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands often experience high rainfall intensities, frequent landslides and tectonic environments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relative to GDP. Accelerated glacial melting, rock falls/ landslides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosion in intermontane valleys. Enhanced snow melt and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may also occur in these environments.Recently active volcanoes (erupted in last 10,000 years – see www.volcano.si.edu). Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eruptions including pyroclastic flows and mudflows/lahars and/or gas emissions and occasionally widespread ash fall.

165

Annexure


Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high ity. Low vegetative cover. Resilient ecosystems & complex pastoral and


der climate change. Increased mobilization of sand dunes and other soils as vegetation cover declines; likely overall decrease in agricultural productivity, with rain-fed agriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysical


projected increase in droughts, heat waves and floods; increased erosion of loess-mantled landscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & compromised food production

fed agriculture yield reduced by 30% or more by 2020. Increased based insect infestations. Earthquakes and other





s are especially vulnerable to storm level rise and, frequently, coastal erosion, with coral reefs

threatened by ocean warming in some areas. Sea level rise is likely to threaten the experience high rainfall intensities,



in intermontane valleys. Enhanced snow melt and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes,

so occur in these environments. see www.volcano.si.edu).

Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to ptions including pyroclastic flows and mudflows/lahars



REA CHECKLIST 132kV S/C LILO of Panchgram


(iv) The project team completes this checklist to support the environmental classification of a project. It is to be attached to the environmental categorization form and submitted to Environment and Safeguards Division (RSES) for endorsement by Director, RSES and for approval by the Chief Compliance Officer.

(v) This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary Peoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender checklists.

(vi) Answer the questions assuming the “without mitigation” case. The purpose is to identify potential impacts. Use the “remarks” section to discuss any anticipated mitigation measures.


Sector Division:

Screening Questions V. Project Sitt ing Is the project area adjacent to or within any of the following environmentally sensitive areas? Cultural heritage site W. Protected Area Wetland Mangrove Estuarine Buffer zone of protected area Special area for protecting biodiversityX. Potential Environmental ImpactsWill the Project cause… Encroachment on historical/ cultural areas, disfiguration of landscape and increased waste generation? Encroachment on precious ecosystem (e.g. sensitive or protected areas)? Alteration of surface water hydrology of waterways crossed by roads and resulting in increased sediment in streams affected by increased soil erosion at the construction site? Damage to sensitive coastal/marine habitats by construction of submarine cables? Deterioration of surface water quality due to silt runoff and sanitary wastes from worker-based camps and chemicals used in construction? Increased local air pollution due to rock crushing cutting and filling? Chemical pollution resulting from chemical clearing of vegetation for construction site?




REA CHECKLIST 132kV S/C LILO of Panchgram – Dullacherra Line at Hailakandi

Rapid Environmental Assessment (REA) Checklist – Power Transmiss ion/ Distribution


for endorsement by Director, RSES and for approval by the Chief Compliance Officer.


Answer the questions assuming the “without mitigation” case. The purpose is to identify potential Use the “remarks” section to discuss any anticipated mitigation measures.



Yes No Remarks


√


√ √ √ √ √


















166

Annexure

Dullacherra Line at Hailakandi

ion/ Distribution


for endorsement by Director, RSES and for approval by the Chief Compliance Officer.

This checklist focuses on environmental issues and concerns. To ensure that social dimensions are resettlement and Indigenous


Answer the questions assuming the “without mitigation” case. The purpose is to identify potential Use the “remarks” section to discuss any anticipated mitigation measures.


Remarks































√









167

Annexure





















Mountain ecosystems











168

Annexure






















REA CHECKLIST 132kV S/C LILO of Agai


(vii) The project team completes this checklist to support the environmental classification of a project. It is to be attached to the environmental categorization form and submitted to Environment and Safeguards Division (RSES) for endorsement by DirCompliance Officer.

(viii) This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary resettlement and IndigPeoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender checklists.

(ix) Answer the questions assuming the “without mitigation” case. The purpose is to identify potential impacts. Use the “remarks” section to discuss any anticipated mitigation measures.


Sector Division:

Screening Questions Y. Project Sitting Is the project area adjacent to or within any of the following environmentally sensitive areas? Cultural heritage site Z. Protected Area Wetland Mangrove Estuarine Buffer zone of protected area Special area for protecting biodiversityAA. Potential Environmental ImpactsWill the Project cause… Encroachment on historical/ cultural areas, disfiguration of landscape and increased waste generation? Encroachment on precious ecosystem (e.g. sensitive or protected areas)? Alteration of surface water hydrology of waterways crossed by roads and resulting in increased sediment in streams affected by increased soil erosion at the construction site? Damage to sensitive coastal/marine habitats by construction of submarine cables? Deterioration of surface water quality due to silt runoff and sanitary wastes from worker-based camps and chemicals used in construction? Increased local air pollution due to rock crushing cutting and filling? Chemical pollution resulting from chemical clearing of vegetation for construction site?



REA CHECKLIST 132kV S/C LILO of Agai – Matia Line

Rapid Environmental Assessment (REA) Checklist – Power Transmission/ Distribution

The project team completes this checklist to support the environmental classification of a project. It is to be attached to the environmental categorization form and submitted to Environment and Safeguards Division (RSES) for endorsement by Director, RSES and for approval by the Chief

This checklist focuses on environmental issues and concerns. To ensure that social dimensions are adequately considered, refer also to ADB's (a) checklists on involuntary resettlement and IndigPeoples; (b) poverty reduction handbook; (c) staff guide to consultation and participation; and (d) gender

Answer the questions assuming the “without mitigation” case. The purpose is to identify potential tion to discuss any anticipated mitigation measures.



Yes No Remarks

area adjacent to or within any of the following environmentally

√ The site area does not pass through any Environmental/ Ecological sensitive area. The transmission line passes through private agriculture land, Barren Government land and community land with minimal vegetation covers in the ROW.

√ √ √ √ √


Encroachment on historical/ cultural

e and √ No historical/cultural area or monument is present near project area.



e water hydrology of waterways crossed by roads and resulting in increased sediment in streams affected by increased soil


stal/marine habitats by construction of submarine √



emicals used √ No impact on surface water quality is anticipated.


√ The design standards of tower foundation are 100sq. mt hence, clearing of vegetation is most likely would be through manual clearing.



169

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Matia Line


The project team completes this checklist to support the environmental classification of a project. It is to be attached to the environmental categorization form and submitted to Environment and

ector, RSES and for approval by the Chief


Answer the questions assuming the “without mitigation” case. The purpose is to identify potential tion to discuss any anticipated mitigation measures.


Remarks

The site area does not pass through any Environmental/ Ecological sensitive area. The transmission line passes through private agriculture land, Barren Government land and community land with minimal vegetation covers in the ROW.

No historical/cultural area or monument is present




No impact on surface water quality is anticipated.





Screening Questions



Hazardous driving conditions where construction interferes with pre-eroads?



Dislocation and compulsory resettlement of people living in right-of-way of the power transmission lines? Environmental disturbances associated with the maintenance of lines (e.g. routine control of vegetative height under the lines)? Facilitation of access to protected areas in case corridors traverse protected areas? Accident risks associated with maintenance of lines and related facilities? Health hazards due to electromagnetic fields, land subsidence, lowered groundwater table and salinization? Disturbances (e.g. noise and chemical pollutants) if herbicides are used to control vegetative height?


Yes No Remarksblasting.

Dislocation or involuntary resettlement of √





No major impact is anticipated transportation of material will be for short duration of time. This may occur during transportation of construction material and towers. Contractors are advised to take proper precautions to avoid any such s

Poor sanitation and solid waste disposal in construction camps and work sites, and possible transmission of communicable diseases from workers to local




compulsory resettlement way of the √

No persons are living within the transmission corridor. The detailed assessment will be done while doing socio – economic census survey.

es associated with the maintenance of lines (e.g. routine control of vegetative height under the

√



Accident risks associated with maintenance of lines and related √ Necessary safety measures needs be provided to

those engaged for transmission line maintenance.





170

Annexure

Remarks

No structure has been damage within the ission line corridor. Hence, there will not be

involuntary resettlement or physical dislocation of affected person for this transmission line. There would be limited movement of vehicle on existing road for transporting construction material and inconvenience is likely to be for short duration limited to construction phase. No major impact is anticipated transportation of material will be for short duration of time. This may occur during transportation of construction material and towers. Contractors are advised to take proper precautions to avoid any such situation.

The sitting of construction camp and sensitization of during construction period.

Delaying of tower foundation construction after excavation would create temporary breeding habitat for mosquito vectors of disease. No persons are living within the transmission corridor. The detailed assessment will be done while

economic census survey. Clearance of vegetation will be required to maintain ROW compliance. However it will not be concentrated to once single location thus no major

Necessary safety measures needs be provided to ged for transmission line maintenance.

Vertical clearance of 6.1m is maintained between lowest conductor and ground surface (agriculture








More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10projected increase in droughts, heat waves and floods; increasedlandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & compromised food production from variability, with rainincidence of forest and agriculturegeophysical hazards may also occur in these environments.



Small islands Small islands generally have land areaNew Guinea and Timor with much larger land areas are commonly included in lists of small island developing states. Lowsurge, tsunami and seathreatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands often experience high rainfall intensities, frequent landslides and tectonic environot uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relative to GDP.

Mountain ecosystems

Accelerated glacial melting, rock falls/ landslidto increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosion in intermontane valleys. Enhanced snow melt and fluctuating stream flows may ppermafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may also occur in these environments.


Recently active volcanoOften fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eruptions including pyroclastic flows and mudflows/lahars and/or gas emissions an



tural Hazards and Climate Change Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high rainfall variability. Low vegetative cover. Resilient ecosystems & complex pastoral and

, but medium certainty that 10–20% of dry lands degraded; 10decrease in water availability in next 40 years; projected increase in drought duration and severity under climate change. Increased mobilization of sand dunes and other soils as

getation cover declines; likely overall decrease in agricultural productivity, with rainagriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysical hazards may also occur in these environments. More than 500 mm precipitation/yr. Resilient ecosystems & complex human pastoral and cropping systems. 10-30% projected decrease in water availability in next 40 years; projected increase in droughts, heat waves and floods; increased erosion of loesslandscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & compromised food production from variability, with rain-fed agriculture yield reduced by 30% or more by 2020. Increased incidence of forest and agriculture-based insect infestations. Earthquakes and other geophysical hazards may also occur in these environments.

r basins, deltas and estuaries in low-lying areas are vulnerable to riverine floods, storm surges associated with tropical cyclones/typhoons and sea level rise; natural (and

induced) subsidence resulting from sediment compaction and ground water action; liquefaction of soft sediments as result of earthquake ground shaking.

Tsunami possible/likely on some coasts. Lowland agri-business and subsistence farming in these regions at significant risk. Small islands generally have land areas of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of small island developing states. Low-lying islands are especially vulnerable to storm surge, tsunami and sea-level rise and, frequently, coastal erosion, with coral reefs threatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands often experience high rainfall intensities, frequent landslides and tectonic environments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive capacity and high adaptation costs relative to GDP. Accelerated glacial melting, rock falls/ landslides and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosion in intermontane valleys. Enhanced snow melt and fluctuating stream flows may produce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may also occur in these environments.Recently active volcanoes (erupted in last 10,000 years – see www.volcano.si.edu). Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eruptions including pyroclastic flows and mudflows/lahars and/or gas emissions and occasionally widespread ash fall.

171

Annexure


Low erratic rainfall of up to 500 mm rainfall per annum with periodic droughts and high rainfall variability. Low vegetative cover. Resilient ecosystems & complex pastoral and

20% of dry lands degraded; 10-30% projected decrease in water availability in next 40 years; projected increase in drought duration and severity under climate change. Increased mobilization of sand dunes and other soils as

getation cover declines; likely overall decrease in agricultural productivity, with rain-fed agriculture yield reduced by 30% or more by 2020. Earthquakes and other geophysical


erosion of loess-mantled landscapes by wind and water; increased gully erosion; landslides likely on steeper slopes. Likely overall decrease in agricultural productivity & compromised food production

ed by 30% or more by 2020. Increased based insect infestations. Earthquakes and other


induced) subsidence resulting from sediment compaction and ground water action; liquefaction of soft sediments as result of earthquake ground shaking.


s of less than 10,000km2 in area, though Papua New Guinea and Timor with much larger land areas are commonly included in lists of

lying islands are especially vulnerable to storm equently, coastal erosion, with coral reefs

threatened by ocean warming in some areas. Sea level rise is likely to threaten the limited ground water resources. High islands often experience high rainfall intensities,

nments in which landslides and earthquakes are not uncommon with (occasional) volcanic eruptions. Small islands may have low adaptive

es and glacial lake outburst floods, leading to increased debris flows, river bank erosion and floods and more extensive outwash plains and, possibly, more frequent wind erosion in intermontane valleys. Enhanced snow

roduce seasonal floods and droughts. Melting of permafrost in some environments. Faunal and floral species migration. Earthquakes, landslides and other geophysical hazards may also occur in these environments.

see www.volcano.si.edu). Often fertile soils with intensive agriculture and landslides on steep slopes. Subject to earthquakes and volcanic eruptions including pyroclastic flows and mudflows/lahars



MAPS FOR 220kV A


V AND 132kV TRANSMISSION LINES (TRANCHE 2)

172

Annexure

Annexure 3.1

(TRANCHE 2)



Assam Electricity Grid Corporation Limited 173

Annexure



174

Assam Transmission System Annexure




Annexure




Annexure




Annexure



178

Assam Transmission System Annexure



179

Annexure




Annexure




Annexure




Annexure

Assam Electricity Grid Corporation


132KV D/C LILO OF CHANDRAPUR MAP FOR

MAP FOR


132KV D/C LILO OF CHANDRAPUR – KAHILIPARA LINE AT SONAPUR

MAP FOR SONAPUR - CHANDARPUR SECTION

MAP FOR SONAPUR - JAGIROAD SECTI ON

183

Annexure

KAHILIPARA LINE AT SONAPUR



Environmental Anal ysis for 220kV D/C LILO of Samaguri

S.No. Description

1. Length of line

2.

Canal/river crossings (iv) Forest area (v) Wild life sanctuary/national(vi) Distance from nearest wildlife

sanctuary/National park (With name)

3. Development of tower site

(iii) Number of towers(iv) Land to be acquired for tower base

4. Land strata 5. Road accessibility

6.

Private land (in Ha.) (iv) Agriculture

A. irrigated B. Non irrigatedNon-agricultural/private waste land/BanjarHouse or building Residential Non residential

7. HT line crossing LT line Crossing

8. Railway crossing 9. National/state highway crossing

10. Length of line passing in the territory of other state

11. No of forest Trees Trees to be Felled Trees to be looped

12. No of private Tress

13. Highest altitude in Route the line14. Nearest distance from Airport

15. Distance from neaarchaeological sites

16. Name of villages involved/name of district

45

The assessment of land for nine numbers of towers is in progress. The land for nine number of towers is approximated to 100m2 to calculate the land area required for tower footingvary minutely while actual assessment.


ENVIRONMENTAL ANALYSIS

ysis for 220kV D/C LILO of Samaguri - Sarusajai Line at Sonapur

Description 220kV D/C LILO of Samaguri Line at Sonapur

13.413 km Small Nala Crossings -

Wild life sanctuary/national park Distance from nearest wildlife sanctuary/National park (With

Nil Nil 1.9 km (Pobitora Wildlife Sanctuary)

Development of tower site Number of towers

Land to be acquired for tower base

(i) 42 (ii) 1.253 ha45 Plain Terrain State Highway 3B 1.32 ha of private land Progress

B. Non irrigated Agricultural

agricultural/private waste land/Banjar Private and Agricultural Land

Non-Residential

2 1 1

National/state highway crossing 0 Length of line passing in the territory of other

Nil

Assessment of involved tree cutting is in progress at concerned electrical circle.

702 number of Trees 20 number Bamboo Clouds

Highest altitude in Route the line 70m Nearest distance from Airport 40km (LGB International Airport)Distance from nearest religious or

800m – Religious Temple

Name of villages involved/name of district

Kamrup Metro (District) Kamerpur Pahar, No 1 Dham khunda, Thipuji Pathar, Kachutali Pathar, Borbilla, Malibagan,Buramayong,Samota,Kachutali No 1, Kachutali No. 2

and for nine numbers of towers is in progress. The land for nine number of towers is approximated to to calculate the land area required for tower footing (9 number only). The actual land for these 9 numbers of towers might

184

Annexure

Annexure 3.2

Sarusajai Line at Sonapur

220kV D/C LILO of Samaguri - Sarusajai Line at Sonapur

12

1.9 km (Pobitora Wildlife Sanctuary)

1.32 ha of private land Progress

Private and Agricultural Land

lved tree cutting is in progress at concerned electrical circle.

20 number Bamboo Clouds

40km (LGB International Airport)

Religious Temple

Kamrup Metro (District) Kamerpur Pahar, No 1 Dham khunda, Thipuji Pathar, Kachutali Pathar, Borbilla, Malibagan,Buramayong,Samota,Kachutali

and for nine numbers of towers is in progress. The land for nine number of towers is approximated to . The actual land for these 9 numbers of towers might



Environmental Analysis for 220kV D/C LILO of Samaguri

S.No. Description

1. Length of line

2.

Canal/river crossings (vii) Forest area (viii) Wild life sanctua(ix) Distance from nearest wildlife


3. Development of tower site(i) Number of towers (ii) Land to be acquired for tower base


6.

Private land (in Ha.) (v) Agriculture

A. irrigated B. Non-irrigatedNon-agricultural/private waste land/BanjarHouse or building Residential Non-residential





12. No of private Tress 13. Highest altitude in Route the line14. Nearest distance from Airport

15. Distance from nearest religious or archaeological sites

16. Name of villages involve


Environmental Analysis for 220kV D/C LILO of Samaguri – Balipara Line at Sonabil

Description 220kV D/C LILO of Samaguri Sarusajai Line at Sonapur

1.541 km Nil


Nil Nil 8 km (Nameri National Park and Reserve Forest)

Development of tower site


(i) 6 (ii) 0.21ha (Private Agricultural Land)Plain Terrain Gudamghat Village Road0.21ha

irrigated Agricultural


Non-Residential

0 0 0


Nil

0

0 Highest altitude in Route the line 92m Nearest distance from Airport 145km (LGB International Airport)Distance from nearest religious or

900m – Religious Site (Church)

Name of villages involved/name of district Gudamghat Village

185

Annexure

Balipara Line at Sonabil

220kV D/C LILO of Samaguri - Sarusajai Line at Sonapur

8 km (Nameri National Park and Reserve

0.21ha (Private Agricultural Land)

Gudamghat Village Road



Religious Site (Church)



Environmental Analysis for 132kV D/C LILO of Depota

Sl.No. Description

1. Length of line

2.

Canal/river crossings (x) Forest area (xi) Wild life sanctuary/national park(xii) Distance from nearest wildlife


3. Development of tower site(iii) Number of towers (iv) Land to be acquired for tower base


6.

Private land (in Ha.) (vi) Agriculture










Environmental Analysis for 132kV D/C LILO of Depota - Gohpur Line at Sonabil

Description 132kV D/C LILO of Depota Line at Sonabil

1.227km Nil

ld life sanctuary/national park Distance from nearest wildlife sanctuary/National park (With

Nil Nil 8 km (Nameri National Park and Reserve Forest)



(iii) 6 (iv) 0.132ha (Private AgPlain Terrain Gudamghat Village Road0.132ha



Non-Residential

0 0 0


Nil

0

0 Highest altitude in Route the line 92m Nearest distance from Airport 146km (LGB International Airport)Distance from nearest religious or

700m – Religious Site (Church)

villages involved/name of district Gudamghat Village

186

Annexure

Gohpur Line at Sonabil

132kV D/C LILO of Depota – Gohpur Line at Sonabil

8 km (Nameri National Park and Reserve


Gudamghat Village Road



Religious Site (Church)



Environmental Analysis for 132kV D/C LILO of Jorhat Bokakhat Line at Jorhat(West)

Sl.No. Description

17. Length of line

18.

Canal/river crossings (xiii) Forest area (xiv) Wild life sanctuary/national park(xv) Distance from nearest wildlife


19. Development of tower site(v) Number of towers (vi) Land to be acquired for tower base


22.

Private land (in Ha.) (vii) Agriculture








32. Name of villages involved/n



Description 132kV Jorhat Bokakhat line at Jorhat (West)

1.958km Nil


Nil Nil 20km (Gibbon Wildlife Santuary)



(v) 10 (vi) 0.0912ha(Private Plain Terrain National Highway 37 0.0912ha



Non-Residential

2 1 0


Nil

0

0 Highest altitude in Route the line 95m Nearest distance from Airport 8.65km (Jorhat Airport)Distance from nearest religious or 6km (Religious Site)

Name of villages involved/name of district No Puma Village, Puranimati Village

187

Annexure


132kV Jorhat Bokakhat line at Jorhat (West)

20km (Gibbon Wildlife Santuary)

0.0912ha(Private Agricultural Land)


8.65km (Jorhat Airport)

No Puma Village, Puranimati Village



Environmental Analys

Sl.No. Description

1. Length of line

2.

Canal/river crossings (i) Forest area (ii) Wild life sanctuary/national park(iii) Distance from nearest wildlife




6.

Private land (in Ha.) (viii) Agriculture

A. irrigated B. Non-irrigated

Non-agricultural/private waste land/B

House or building Residential Non-residential



10. Length of line passing in the territory of ostate



13. Length of the line in non14. Highest altitude in Route the line15. Nearest distance from Airport


17. Name of villages involved/name


Environmental Analys is for 132kV D/C LILO of Namrup - Tinsukia at Bordubi

Description 132kV LILO Namrup

Bordubi2.427km Nil

ld life sanctuary/national park Distance from nearest wildlife sanctuary/National park (With

Nil Nil 20km (Dibrugarh Saikhowa National Park)



(i) 9 (ii) 1.5493ha (Private Agricul

Land) Plain Terrain Tinsukia – Duliajan Road (SH 24)1.5493ha

Agriculture

irrigated

Agricultural (0.3813ha)Tea Estate(1.168ha)

agricultural/private waste land/Banjar Private (Agricultural Land and Tea Estate)

Non-Residential

3 1 0


Nil

(Fruit and Non-Fruit trees):532Loss of Bamboos:650 Loss of Tea Plants: 50 (Fruit and Non-Fruit trees):532Loss of Bamboos:650 Loss of Tea Plants: 50

f the line in non-cultivated area 0km Highest altitude in Route the line 136m Nearest distance from Airport 30km (Dibrugarh Airport)Distance from nearest religious or

700m Temple (Religious Site)

Name of villages involved/name of district Barguri Village

188

Annexure

Tinsukia at Bordubi

132kV LILO Namrup – Tinsukia at Bordubi

20km (Dibrugarh Saikhowa National Park)

1.5493ha (Private Agricultural

Duliajan Road (SH 24)

Agricultural (0.3813ha)

Private (Agricultural Land and Tea

Fruit trees):532

Fruit trees):532

30km (Dibrugarh Airport)




Environmental Analysis for 132kV S/C LILO of Panchgram

S.No. Description

1. Length of line

2.





6.

Private land (in Ha.) (ix) Agriculture

A. irrigated B. Non-irrigatedNon-agricultural/private waste land/BanjarHouse or building Residential Non residential






13. Highest altitude in Route the line14. Nearest distance from Airport




Environmental Analysis for 132kV S/C LILO of Panchgram – Dullavcherra Line at Hailakandi

Description 132kV Panchgram Line at Hailakandi

1.202km Nil


Nil Nil 50km (Manas National Park)



(iii) 3 (iv) 0.205ha (Private Agricultural Land)Plain Terrain NH 17 0.205ha

Agriculture

irrigated Agricultural ( 0.205ha)

agricultural/private waste land/Banjar Private (Agricultural Land)

Non-Residential

1 0 0


Nil

Fruit trees: 151 Non-Fruit trees: 11

Fruit trees: 151 Non-Fruit trees: 11

Highest altitude in Route the line 21m Nearest distance from Airport 100km (LGB Guwahati Airport)Distance from nearest religious or


Name of villages involved/name of district Chandpur Village

189

Annexure

Dullavcherra Line at

132kV Panchgram – Dullavcherra Line at Hailakandi

50km (Manas National Park)


Private (Agricultural Land)

100km (LGB Guwahati Airport)




Environmental Analysis for 132kV D/C Agia

Sl.No. Description1. Length of line

2.





6.

Private land (in Ha.)

(i) Agriculture A. irrigated B. Non-irrigatedNon-agricultural/private waste land/BanjarHouse or building Residential Non-residential






13. Highest altitude in Route the14. Nearest distance from Airport




Environmental Analysis for 132kV D/C Agia – Matia Line

Description 132kV D/C Agia 22.5 km 4


Nil Nil 60km (Manas National Park)



(i) 85 (ii) 0.85ha (Private Agricultural Land)Plain Terrain Golapara Guwhati Road (NHPrivate Agricultural Land: 0.73haGovt. Land: 0.09ha ASEB Land: 0.01ha Community Land: 0.02ha

Agriculture

irrigated Agricultural (0.75ha)

agricultural/private waste land/Banjar Barren Land(0.10ha)

Non-Residential

7 9 1

National/state highway crossing 0 ing in the territory of other

Nil

Fruit trees: 629 Non-Fruit trees: 941 Bamboo: 13424 Fruit trees: 629 Non-Fruit trees: 941 Bamboo: 13424

Highest altitude in Route the line 50m Nearest distance from Airport 100km (LGB Guwahati Airport)Distance from nearest religious or


Name of villages involved/name of district

Solmari, Samaguri, Gendera Para, Garu Khuta, 1 No Kurabasha, Kurabhasa, 2 No Samaguri, Harimura, Moijhonga, Goroi Mari, Harimura Udaypur, Khamarmaikpur, Lalabari, Dohikata, Gojia Jani, Rajapara, Beltola, Singijani and Domani

190

Annexure

Matia Line

132kV D/C Agia - Matia

60km (Manas National Park)

Private Agricultural Land)

Golapara Guwhati Road (NH-17) Private Agricultural Land: 0.73ha

Community Land: 0.02ha

100km (LGB Guwahati Airport)


Solmari, Samaguri, Gendera Para, Garu abasha, Kurabhasa, 2 No

Samaguri, Harimura, Moijhonga, Goroi Mari, Harimura Udaypur, Khamarmaikpur, Lalabari, Dohikata, Gojia Jani, Rajapara, Beltola, Singijani and Domani



NATIONAL AMBIENT AIR QUALITY STANDARDS, CPCB 2009

Pollutant Time

Weighted Average

Residential,

Sulphur Dioxide (SO2) µg/m3

Annual*

24 hours**

Oxides of Nitrogen

(NOx) µg/m3

Annual*

24 hours** Particulate

Matter (Size less than 10 µm) or PM10

µg/m3

Annual*

24 hours**

Particulate Matter (Size less than 2.5 µm) or PM2.5

µg/m3

Annual*

24 hours**

Ozone (O3) µg/m3

8 hours**

1 hour**

Lead (Pb) µg/m3

Annual*

24 hours**

Carbon Monoxide (CO)

mg/m3

8 hours**

1 hour**

Ammonia (NH3) µg/m3

Annual* 24 hours**

Benzene (C6H6) µg/m3

Annual*

Benzo (a) pyrene (BaP) –

Particulate phase only,

ng/m3

Annual*

Arsenic (As) ng/m3

Annual*

Nickel (Ni) ng/m3

Annual*

*Annual Arithmetic mean of minimum 104 measurements in a year at a particular site taken twice a week 24 hourly at uniform in

**24 hourly or 08 hourly or 01 hourly monitored values, as applicable, shall be complied with 98% of the time in a year. 2% of the time, they may exceed the limits but not on two consecutive days of monitoring.



Concentration in A mbient Air

Industrial, Residential, Rural and Other Area

Ecologically Sensitive Area

(notified by Central

Government)

Method of Measurement

50 20 Improved West and

Ultravio80 80

40 30 Jacob &Hochheiser Modified

MethodChemiluminescence80 80 Gas Phase Chemiluminescence60 60

Beta attenuation100 100

40 40

Beta attenuation60 60

100 100 UV PhotometricChemilumine

Chemical Method180 180

0.5 0.5 ASS/ ICP Method after sampling on EPM 2000 or equivalent Filter

ED – XRF using Teflon filter1.0 1.0

02 02 Non Dispersive (NDIR)Spectroscopy04 04

100 100 ChemiluminescenceIndophenol blue method400 400

05 05

Gas Chromatography based continuous analyzer

Adsorption and Desorption followed by GC analysis

01 01 Solvent extraction followed by

HPLC/GC analysis

06 06 AAS/ICP method after sampling on EPM 2000 or equivalent filter

20 20 AAS/ICP method after sampling on EPM 2000 or equivalent filter

*Annual Arithmetic mean of minimum 104 measurements in a year at a particular site taken twice a week 24 hourly at uniform in

ourly monitored values, as applicable, shall be complied with 98% of the time in a year. 2% of the time, they may exceed the limits but not on two consecutive days of monitoring.

191

Annexure

Annexure 4


Method of Measurement

Improved West and Geake Method

Ultraviolet Fluorescence Jacob &Hochheiser Modified

(Na-Arsenite) MethodChemiluminescence

Gas Phase Chemiluminescence

Gravimetric TOEM

Beta attenuation

Gravimetric TOEM

Beta attenuation

UV Photometric Chemiluminescence

Chemical Method ASS/ ICP Method after sampling on EPM 2000 or equivalent Filter

paper XRF using Teflon filter

Non Dispersive Infra-Red (NDIR)Spectroscopy

Chemiluminescence Indophenol blue method

Gas Chromatography based continuous analyzer

Adsorption and Desorption llowed by GC analysis

Solvent extraction followed by HPLC/GC analysis

AAS/ICP method after sampling on EPM 2000 or equivalent filter

paper AAS/ICP method after sampling on EPM 2000 or equivalent filter

paper *Annual Arithmetic mean of minimum 104 measurements in a year at a particular site taken twice a week 24 hourly at uniform interval.

ourly monitored values, as applicable, shall be complied with 98% of the time in a year. 2% of the time, they may



NOTE: Whenever and wherever monitoring results on two consecutive days of moncategory, it shall be considered adequate reason to institute regular or continuous monitoring and further investigation.

NATIONAL AMBIENT NOISE STANDARDS

Sl. No. Category of Area/

1 Industrial Area

2 Commercial Area

3 Residential Area

4 Silence ZoneNote: - 1. Day time shall mean from 6.00 a.m. to 10.00 p.m. 2. Night time shall mean from 10.00 p.m. to 6.00 a.m3. Silence zone is an area comprising not less than 100 metres around hospitals, educational institutions, courts, religious places or any other area which is declared as such by the competent authority 4. Mixed categories of areas may be declared as oauthority. * dB(A) Leq denotes the time weighted average of the level of sound in decibels on scale A which is relatable to human hearing. A “decibel” is a unit in which noise is measured. “A”, in dB (A) Leq, denotes the frequency weighting in the measurement of noise and corresponds to frequency response characteristics of the human ear. Leq: It is an energy mean of the noise level over a specified period. Source: The Noise Pollution (Regu

Assam Electricity Grid Corporation Limited NOTE: Whenever and wherever monitoring results on two consecutive days of monitoring exceed the limits specified above for the respective category, it shall be considered adequate reason to institute regular or continuous monitoring and further investigation.

NATIONAL AMBIENT NOISE STANDARDS

Category of Area/ Zone Limits in dB*

Day Time Night TimeIndustrial Area 75

Commercial Area 65

Residential Area 55

Silence Zone 50

1. Day time shall mean from 6.00 a.m. to 10.00 p.m. 2. Night time shall mean from 10.00 p.m. to 6.00 a.m. 3. Silence zone is an area comprising not less than 100 metres around hospitals, educational institutions, courts, religious places or any other area which is declared as such by the competent authority 4. Mixed categories of areas may be declared as one of the four above mentioned categories by the competent

* dB(A) Leq denotes the time weighted average of the level of sound in decibels on scale A which is relatable to

A “decibel” is a unit in which noise is measured.

”, in dB (A) Leq, denotes the frequency weighting in the measurement of noise and corresponds to frequency response characteristics of the human ear. Leq: It is an energy mean of the noise level over a specified period.

Source: The Noise Pollution (Regulation and Control) Rules, CPCB, 2000

192

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itoring exceed the limits specified above for the respective category, it shall be considered adequate reason to institute regular or continuous monitoring and further investigation.

Annexure 4.1

Limits in dB*

Night Time 70

55

45

40

3. Silence zone is an area comprising not less than 100 metres around hospitals, educational institutions, courts,

ne of the four above mentioned categories by the competent

* dB(A) Leq denotes the time weighted average of the level of sound in decibels on scale A which is relatable to

”, in dB (A) Leq, denotes the frequency weighting in the measurement of noise and corresponds to frequency



Table 3.3.1 Orgenolyphtic and Physical Characters


WATER QUALITY STANDARDS

Indian Standard IS: 10500:2012


193

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Annexure 4.2




Table 3.3.2: General Parameters Concerning Substances Undesirable in Excess



194

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Table 3.3.3: Pa

Table 3.3.4: Parameters Concerning Radioactive Substances


Table 3.3.3: Pa rameters Concerning Toxic Substances


195

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rameters Concerning Toxic Substances




Table 3.3.5: Pesticides Residue Limits and Test Method

Table 3.3.6: Bacteriological Quality of Drinking Water

Source: Indian Standard (IS: 10500:2012




Source: Indian Standard (IS: 10500:2012)

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Source: IS: 2296-1992

Note: Class A: Drinking water source without conventional treatment but after disinfection; Class B: outdoor bathing; Class C: Drinking water source with conventional treatment followed by disinfection; Class D: Fish culture and wild life propagation; Class E: Irrigation, industrial cooling or control waste disposal.

Sl. No

Parameter and Unit

1 pH (max) (min : 6.5)

2 Colour (True) (Hazen unit)3 DO (mg/L) (minimum)4 BOD (3d, 27oC) (mg/L)5 TDS (mg/L) 6 Total Coliforms (MPN/100 ml)7 Oil and Grease (mg/L)8 Chlorides (mg/L as Cl)9 Sulfates (mg/L as SO4)

10 Nitrates (mg/L as NO3)11 Fluorides (mg/L as F)12 Copper (mg/L) 13 Iron (mg/L) 14 Zinc (mg/L) 15 Arsenic Total (mg/L)16 Lead (mg/L) 17 Cadmium (mg/L) 18 Chromium (VI) (mg/L)19 Selenium (mg/L) 20 Total Chromium 21 Phenols (mg/L)


Indian Standard IS: 2296:1992

Class A: Drinking water source without conventional treatment but after disinfection; Class B: outdoor bathing; Class C: ce with conventional treatment followed by disinfection; Class D: Fish culture and wild life propagation;

Class E: Irrigation, industrial cooling or control waste disposal.

Parameter and Unit A B C

pH (max) (min : 6.5) 8.5 8.5 8.5

Colour (True) (Hazen unit) 10 300 300 DO (mg/L) (minimum) 6 5 4 BOD (3d, 27oC) (mg/L) 2 3 3

500 - 1500 Total Coliforms (MPN/100 ml) 50 500 5000 Oil and Grease (mg/L) - - 0.1 Chlorides (mg/L as Cl) 250 - 600 Sulfates (mg/L as SO4) 400 - 400 Nitrates (mg/L as NO3) 20 - 50 Fluorides (mg/L as F) 1.5 1.5 1.5

1.5 - 1.5 0.3 - 50 15 - 15

Arsenic Total (mg/L) 0.05 0.2 0.2 0.1 - 0.1 0.01 - 0.01

Chromium (VI) (mg/L) 0.05 0.05 0.05 0.01 0.05

- - - 0.002 0.005 0.005

197

Annexure

Class A: Drinking water source without conventional treatment but after disinfection; Class B: outdoor bathing; Class C: ce with conventional treatment followed by disinfection; Class D: Fish culture and wild life propagation;

D E

8.5 8.5

- - 4 - - - 2100 - -

0.1 - - 600 1000 - - - - - - - - - - - - - - - - - - - - - - -



ADB ASSAM POWER ENHANCEMENT PROJECT CUMULATIVE AND INDUCED

1. Introduction and Scope of Assessmenti. The Government of India (GOI) and Government of Assam (GOA) have requested Asian

Development Bank (ADB) to provide $200 million in loan funding via a multifinancing facility (MFF) to supportspecifically for transmission and distribution system expansion and upgrades. The ADB Operations Manual for MFF investments OM D14/OP Section I(v) states: “Where significant cumulative and induced considered probable, a sector or the Board together with other MFF documents for Board consideration.” This assessment covers reasonably foreseeable cumulative and induced to the ADB-funded investments in electric power transmissionreferred to as the “core projects”).

ii. Induced impacts are those from activities and projects that would not proceed without the ADB-funded investments. Cumulaenvironmental effects from activities and projects that take place in parallel in the same project area with possible economic linkage to the core project. The impact of a single project on an environmental factor may and parallel projects may combine to produce irreversible damage. The purpose of assessing the cumulative and induced impacts is to identify identify limiting and mitigating factors to ensexceed the carrying capacity of the environment.

iii. For this assessment, the spatial context is the gridpower utilities, comprising the greater Brahmaputra River valley and most of terms of area and population. The temporal context is the nearperiod, i.e., 2009-2014. Potential impacts are considered on the basis of economic dependency, and degree of certainty that collateral activities will proceed. In some additional power sector investments are seen as certain and/or reasonably foreseeable. Industrial growth and increased agricultural activity can be reasonably foreseen based on current development planning, e.g., industrial estates noted inmain IEE report, and possible increases in cropping as more power supplies enable additional irrigation.

iv. Impacts and effects are categorized as additive, compensatory, synergistic, and masking. Additive impacts increase environmental stress, e.g., addfrom new industrial plants. Compensatory effects offset negative impacts, and might include specific environmental management and ecological preservation activities implemented on a regiomanagement plants in inthe core project and could be positive that are not obviously linked to the core project, but may occur core projects; e.g., access roads to a new hydropower plant may facilitate uncontrolled entry to environmentally sensitive areas.

v. In the context of transmission and distribution projects in India, most of the ADBprojects are addressing underSuch transmission and distribution projects are in fact induced by economic growth, not vice versa.

vi. For the proposed Assam investment program the scope of assessment covers following potential activities and projects:


ADB ASSAM POWER ENHANCEMENT PROJECT CUMULATIVE AND INDUCED IMPACTS ASSESSMENT

Introduction and Scope of Assessment The Government of India (GOI) and Government of Assam (GOA) have requested Asian Development Bank (ADB) to provide $200 million in loan funding via a multifinancing facility (MFF) to support continued investment in the state power sector,

for transmission and distribution system expansion and upgrades. The ADB Operations Manual for MFF investments OM D14/OP Section I(v) states: “Where significant cumulative and induced environmental impacts from the entire MFFconsidered probable, a sector or regional assessment will be prepared and submitted to the Board together with other MFF documents for Board consideration.” This assessment covers reasonably foreseeable cumulative and induced

funded investments in electric power transmission and distribution (also referred to as the “core projects”).

Induced impacts are those from activities and projects that would not proceed without funded investments. Cumulative impacts are defined as potential

environmental effects from activities and projects that take place in parallel in the same project area with possible economic linkage to the core project. The impact of a single project on an environmental factor may not be significant, but the impacts of induced and parallel projects may combine to produce irreversible damage. The purpose of assessing the cumulative and induced impacts is to identify combined effects

imiting and mitigating factors to ensure that the cumulative impacts will not exceed the carrying capacity of the environment.

For this assessment, the spatial context is the grid-connected service area of the Assam power utilities, comprising the greater Brahmaputra River valley and most of terms of area and population. The temporal context is the near

2014. Potential impacts are considered on the basis of economic dependency, and degree of certainty that collateral activities will proceed. In some additional power sector investments are seen as certain and/or reasonably foreseeable. Industrial growth and increased agricultural activity can be reasonably foreseen based on current development planning, e.g., industrial estates noted inmain IEE report, and possible increases in cropping as more power supplies enable

Impacts and effects are categorized as additive, compensatory, synergistic, and masking. Additive impacts increase environmental stress, e.g., addfrom new industrial plants. Compensatory effects offset negative impacts, and might include specific environmental management and ecological preservation activities implemented on a regional or sectoral basis, e.g., common effluent

industrial estates. Synergistic effects mutually reinforce effects of core project and could be positive or negative. Masking effects arise from activities

that are not obviously linked to the core project, but may occur partly core projects; e.g., access roads to a new hydropower plant may facilitate uncontrolled entry to environmentally sensitive areas.

In the context of transmission and distribution projects in India, most of the ADBaddressing under-served areas with suppressed energy demand.

Such transmission and distribution projects are in fact induced by economic growth, not

he proposed Assam investment program the scope of assessment covers ollowing potential activities and projects:

198

Annexure

Annexure 5

ADB ASSAM POWER ENHANCEMENT PROJECT CUMULATIVE AND INDUCED

The Government of India (GOI) and Government of Assam (GOA) have requested Asian Development Bank (ADB) to provide $200 million in loan funding via a multi-tranche

in the state power sector, for transmission and distribution system expansion and upgrades. The ADB

Operations Manual for MFF investments OM D14/OP Section I(v) states: “Where from the entire MFF are

regional assessment will be prepared and submitted to the Board together with other MFF documents for Board consideration.” This assessment covers reasonably foreseeable cumulative and induced impacts attributable

and distribution (also

Induced impacts are those from activities and projects that would not proceed without tive impacts are defined as potential

environmental effects from activities and projects that take place in parallel in the same project area with possible economic linkage to the core project. The impact of a single

not be significant, but the impacts of induced and parallel projects may combine to produce irreversible damage. The purpose of

combined effects and cumulative impacts will not

connected service area of the Assam power utilities, comprising the greater Brahmaputra River valley and most of the state in terms of area and population. The temporal context is the near-term development

2014. Potential impacts are considered on the basis of economic dependency, and degree of certainty that collateral activities will proceed. In this case, some additional power sector investments are seen as certain and/or reasonably foreseeable. Industrial growth and increased agricultural activity can be reasonably foreseen based on current development planning, e.g., industrial estates noted in the main IEE report, and possible increases in cropping as more power supplies enable

Impacts and effects are categorized as additive, compensatory, synergistic, and masking. Additive impacts increase environmental stress, e.g., additional pollution loads from new industrial plants. Compensatory effects offset negative impacts, and might include specific environmental management and ecological preservation activities

nal or sectoral basis, e.g., common effluent and waste dustrial estates. Synergistic effects mutually reinforce effects of

or negative. Masking effects arise from activities partly because of the

core projects; e.g., access roads to a new hydropower plant may facilitate uncontrolled

In the context of transmission and distribution projects in India, most of the ADB-funded served areas with suppressed energy demand.

Such transmission and distribution projects are in fact induced by economic growth, not

he proposed Assam investment program the scope of assessment covers the



a) “Upstream” power plants which may be associated facilities;b) Potential “downstream” energy sector investments, specifically end

efficiency(EE) programs and new distributed generation (DG);c) Industrial developmed) Increased agricultural activities facilitated by additional power for irrigation.

vii. Aside from the agricultural and industrial sectors, electricity consumers “downstream” of

the distribution substations forecast by sector. Development indicatorsFramework to evaluate the overall economic impact of the project. In terms of overall environmental impact, thedownstream development is whether ambient environmental quality objectives will be maintained within GOI standards in the spatial and temporal context.

2. General Benefits and Greenhouse Gas Implicatii. The ADB funded investments in transmission and distribution will remove transmission

bottlenecks and reduce transmission and distribution losses, reducing the emissions intensity of delivered power. Based on computer modeling of the transmission systemthe components proposed for ADB financing will result in power savings of 45 MW compared to business-corresponding GHG emissions reduction is estimated to be 68,400 tons CO2per year.1 The distribution system expansion will reliance on back-up diesel generators, which will electricity consumers. The ADBelectrification, which will further reduce diesel consumption.

3. Sectoral Trends in Power Demandi. Table A5.1.1 and Figure

Domestic demand accounts for the largest share and is expected to increato 69%. Industrial demand, including tea gardens and highthe second largest category aCommercial demand is expected to declindustrial, and commercial sebe partly compensated by technical loss reductions in the transmission and distribution system.

ii. In terms of total demand (or consumption), domestic growth is projected at 71% vs. 46% for commercial, 24% for industry, and 45% for agriculture. Water works and street lighting are projected to grow 20% and 21% respectively. Domestic and commercial consumption is mainly for lighting, refrigeration, and air conditioning, which can all benefit from EE gains. Industrial consumption is mainly for motive power, which can also benefit from EE gains. The industrial sector is also the largest user of captive power plants, which are mostly dieseluse natural gas.2 Agricultural consumption is mainly for groundwater pumping for irrigation. Potential impacts are presented schematically in in Table A5.1.2 , and discussed below.

Table A.5.1.1: Demand

Year Domestic Commercial Industry

2010-11 4117 690

2011-12 5261 783

2012-13 6722 887

2013-14 7032 1004% Increase % of total

71% 46%


“Upstream” power plants which may be associated facilities; Potential “downstream” energy sector investments, specifically endefficiency(EE) programs and new distributed generation (DG); Industrial development which is dependent on reliable power supplies; andIncreased agricultural activities facilitated by additional power for irrigation.

Aside from the agricultural and industrial sectors, electricity consumers “downstream” of the distribution substations are considered in general terms with respect to demand

Development indicators are included in the Design and Monitoring Framework to evaluate the overall economic impact of the project. In terms of overall environmental impact, the key issue for evaluation of the associated facilities and downstream development is whether ambient environmental quality objectives will be maintained within GOI standards in the spatial and temporal context.

General Benefits and Greenhouse Gas Implicati ons The ADB funded investments in transmission and distribution will remove transmission bottlenecks and reduce transmission and distribution losses, reducing the emissions intensity of delivered power. Based on computer modeling of the transmission systemthe components proposed for ADB financing will result in power savings of 45 MW

-as-usual, and energy savings of 171,000 MWh/year. The corresponding GHG emissions reduction is estimated to be 68,400 tons CO2

distribution system expansion will reduce systemup diesel generators, which will further reduce emissions from

electricity consumers. The ADB-supported investments will also facilitate railway further reduce diesel consumption.

Sectoral Trends in Power Demand Figure A5.1.1 portray projected power demand by sector

Domestic demand accounts for the largest share and is expected to increaemand, including tea gardens and high-tension “bulk” customers, is

second largest category and is expected to decline from 24% Commercial demand is expected to decline slightly from 11% to 10%. industrial, and commercial sectors will benefit from the core projects. Additive effects will be partly compensated by technical loss reductions in the transmission and distribution

In terms of total demand (or consumption), domestic growth is projected at 71% vs. 46% ercial, 24% for industry, and 45% for agriculture. Water works and street

lighting are projected to grow 20% and 21% respectively. Domestic and commercial consumption is mainly for lighting, refrigeration, and air conditioning, which can all

E gains. Industrial consumption is mainly for motive power, which can also benefit from EE gains. The industrial sector is also the largest user of captive power plants, which are mostly diesel-fired except for some facilities in Upper Assam which

ral gas.2 Agricultural consumption is mainly for groundwater pumping for irrigation. Potential impacts are presented schematically in Figure A5.1.2

, and discussed below.

A.5.1.1: Demand Projections (million kWh)

Industry Agriculture Water Street works

690 1596 82 50

783 1731 94 54

887 1852 106 57

1004 1982 119 60

46% 24% 45% 20%

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Annexure

Potential “downstream” energy sector investments, specifically end-use

nt which is dependent on reliable power supplies; and Increased agricultural activities facilitated by additional power for irrigation.

Aside from the agricultural and industrial sectors, electricity consumers “downstream” of are considered in general terms with respect to demand

Design and Monitoring Framework to evaluate the overall economic impact of the project. In terms of overall

key issue for evaluation of the associated facilities and downstream development is whether ambient environmental quality objectives will be maintained within GOI standards in the spatial and temporal context.

The ADB funded investments in transmission and distribution will remove transmission bottlenecks and reduce transmission and distribution losses, reducing the emissions intensity of delivered power. Based on computer modeling of the transmission system, the components proposed for ADB financing will result in power savings of 45 MW

usual, and energy savings of 171,000 MWh/year. The corresponding GHG emissions reduction is estimated to be 68,400 tons CO2-equivalent

reduce system losses and reduce further reduce emissions from

supported investments will also facilitate railway

portray projected power demand by sector until 2014. Domestic demand accounts for the largest share and is expected to increase from 63%

tension “bulk” customers, is nd is expected to decline from 24% to about 19%.

ine slightly from 11% to 10%. The domestic, ctors will benefit from the core projects. Additive effects will

be partly compensated by technical loss reductions in the transmission and distribution

In terms of total demand (or consumption), domestic growth is projected at 71% vs. 46% ercial, 24% for industry, and 45% for agriculture. Water works and street

lighting are projected to grow 20% and 21% respectively. Domestic and commercial consumption is mainly for lighting, refrigeration, and air conditioning, which can all

E gains. Industrial consumption is mainly for motive power, which can also benefit from EE gains. The industrial sector is also the largest user of captive power

fired except for some facilities in Upper Assam which ral gas.2 Agricultural consumption is mainly for groundwater pumping for

Figure A5.1.2 , summarized

lighting Total

14 6549

15 7938

16 9640

17 10214

21%



Table A.5.1.1: Demand

Year Domestic Commercial Industry

2010-11 63% 11%

2011-12 66% 10%

2012-13 70% 9%

2013-14 69% 10%NOTE: "Industrial" includes Tea Gardens and Bulk SupplySource: ADB TA 7099-PRC Inception Report, January 2009

Figure A.5.1.1 Assam demand forecast 2010


A.5.1.1: Demand Projections (million kWh)

Industry Agriculture Water Street works

11% 24% 1.25% 0.76%

10% 22% 1.18% 0.68%

9% 19% 1.10% 0.59%

10% 19% 1.17% 0.59% NOTE: "Industrial" includes Tea Gardens and Bulk Supply

PRC Inception Report, January 2009

Figure A.5.1.1 Assam demand forecast 2010 -2014

200

Annexure

lighting Total

0.21% 100%

0.19% 100%

0.17% 100%

0.17% 100%



FIGURE A.5.1.2 ASSAM POWER SECTOR ENHANCEMENT PROGRAM CUMULATIVE AND Assam Electricity Grid Corporation Limited

FIGURE A.5.1.2 ASSAM POWER SECTOR ENHANCEMENT PROGRAM CUMULATIVE AND INDUCES IMPACT

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Annexure

FIGURE A.5.1.2 ASSAM POWER SECTOR ENHANCEMENT PROGRAM CUMULATIVE AND



Project or Sector

Additive Compensatory

Related power sector investments

New 3 x 250 MW coal-fired power plant at Bongaigaon will increase local air pollutant load, but ambient standards are expected to be met after plant becomes operational. Some coal will be supplied from mine in Upper Assam. No significant increase in air pollution load from the 100 MW gas-fired power plant at Namrup.

Additional hydropower development in Assam and Northeast Region will offset new coal-fired gene10,000 GWh of hydropower offsets 3.5 Million tons of coal used in thermal power plants. Power system efficiency will improve, reducing emissions intensity. Further efficiency improvements expected from demand other end

Industrial Activity

Increased air emissions (PM, SO2, and NOx) will increase local pollutant load, but ambient air quality objectives are expected to be maintained.

Value-added employment opportunities create social benefits for local residents, including backward classes/indigenous peoples.

Agriculture

Groundwater withdrawal theoretically could increase by up to 100% to support 2 crops per year vs. current single crop.

Use of chemical fertilizers expected to be limited in favor of organic fertilizers due to relative costs. Only 22% of groundwater resource is currently utilized.

TABLE A.5.1.2: IMPACT CHARACTERIZATION

Impact Characteristics

Compensatory Synergistic MaskingAdditional hydropower development in Assam and Northeast Region will offset new

fired generation. Each 10,000 GWh of hydropower offsets 3.5 Million tons of coal used in thermal power plants. Power system efficiency will improve, reducing emissions intensity. Further efficiency improvements expected from demand side management and other end-use efficiency gains.

Additional power supplies will support industrial estates and other infrastructure. Commercial and residential power consumption will increase, with improved efficiency.

New power generation units at Bongaigaon and Namrup will replace Decommissioned and obsolete plants. Bongaigaon will have net emissions increase; Namrup is emissions neutral. Remaining hydropower potential in Assam will be mainly small runriver plants

added employment opportunities create social benefits for local residents,

g backward classes/indigenous peoples.

Emissions fallout may be transferred to soil and water.

Limited effects due to rational land use planning and sitting. New access roads will not facilitate increased forest and tourist access.

Use of chemical fertilizers expected to be limited in favor of organic fertilizers due to relative costs. Only 22% of groundwater resource is currently utilized.

Increase in chemical fertilizer use could contaminate surface and shallow ground water

Expanded agricultural output will support overall economic growth

202

Annexure

Comments

Masking New power generation units at Bongaigaon and Namrup will replace

ommissioned and obsolete plants. Bongaigaon will have net emissions increase; Namrup is emissions neutral. Remaining hydropower potential in Assam will be mainly small run-of-

Expanded power supplies are necessary to support economic growth. Investments in new power generation capacity and transmission system expansion are effectively induced by economic growth, rather than vice versa. Improved power supplies will benefit social infrastructure, especially public health facilities and schools.

Limited effects due to rational land use planning and sitting. New access roads will not facilitate increased forest and

Pollutant emissions can be minimized with advanced, cleaner process technologies. Improved grid-supplied power reduces need for diesel-fired captive and stand by generation.

Expanded agricultural output will support overall

Increased farmers’ income is consistent with economic growth and poverty reduction objectives.



4. Related Power Sector Investmentsi. Power sector investments related to the A

replacement power plants at Bongaigaon and Namrup; and (ii) efficiency investments and distributed generation. The power plants at Bongaigaon and Namrup are being financed independentdistributed generation commercial buildings) investments may be supported by ADB via financing to the state-level energy conservation fund.3

5. Upstream Power Plants: Possible Associi. Associated Facilities are referenced in a footnote of the Resettlement OM, which

states simply that if there are associated facilities with safeguards implications, then ADB may conduct due diligence. In practice, if a facility is economicADB’s direct investment, then it is considered to be an “associated facility” and may be subject to due diligence. In the context of safeguards compliance, due diligence is limited to a determination of whether the facilities are in complcountry regulatory requirements.potential financial risks.4 The safeguards categories of the ADB determined independently.5 The transmission project includes 2 possiassociated facilities, discussed below.

iii. ADB financing is proposed for a transmission line which will evacuate power from a new 3 x 250 MW coalADB client) built on the site of a decommissioned 4 was owned by the Assam Power Generation Company Ltd. The proposed transmission system layout is shown schematically in transmission system will allow thegrids and into the Assam state grid. The overall transmission system upgrade will allow imports of power from the mainland grids as well. The NTPC plant is not economically dependent on the ADBcould be delivered into the mainland grids. On this basis, the NTPC plant is not necessarily an associated facility. However, the Assam distribution companies have committed to buy 381 MW of power from the NTPC plant, and on this basis the NTPC plant may be deemed an asscompliance with GOI health, and safety (EHS) department, and is acknowledged as the one of the bestperforming power utility companies in In

iv. An environmental impact assessment (EIA) has been prepared and a No Objection Certificate (NOC) was issued by the Ministry of Environment and Forests (MOEF) on 7 June 2007, providing regulatory clearance to proceed with plant construction. The ADB project team visited the plant site in March 2009 and reviewed the EIA report. The following key findings are presented in the EIA report:

v. The plant will utilize a mix of lowAssam, with maximum sulphdesulfurization (FGD) system will be installed to control sulphur dioxide (SO2) emissions. Electrostatic precipitators with 90% removal efficiency will be installed to control particulate matter (PM). • Tfor NOx and SO2 will be met (stack emissions for PM are not reported in the EIA). The IFC 2008 stack emissions standard for NOx will not be met, but the standard for SO2 will be met


Related Power Sector Investments Power sector investments related to the ADB-funded activity include:(i) new replacement power plants at Bongaigaon and Namrup; and (ii) efficiency investments and distributed generation. The power plants at Bongaigaon and Namrup are being financed independently of ADB. End

(e.g., small hydropower plants, solar systems on residential and commercial buildings) investments may be supported by ADB via financing to the

level energy conservation fund.3

Upstream Power Plants: Possible Assoc iated Facilities Associated Facilities are referenced in a footnote of the Resettlement OM, which states simply that if there are associated facilities with safeguards implications, then ADB may conduct due diligence. In practice, if a facility is economicADB’s direct investment, then it is considered to be an “associated facility” and may be subject to due diligence. In the context of safeguards compliance, due diligence is limited to a determination of whether the facilities are in complcountry regulatory requirements. Due diligence may logically include a review of potential financial risks.4 The safeguards categories of the ADB

independently.5 The transmission project includes 2 possiassociated facilities, discussed below.

ADB financing is proposed for a transmission line which will evacuate power from a new 3 x 250 MW coal-fired power plant at Bongaigaon (owned by NTPC, Ltd., an ADB client) built on the site of a decommissioned 4 x 60 MW coalwas owned by the Assam Power Generation Company Ltd. The proposed transmission system layout is shown schematically in Figure A.5.1.3

system will allow the NTPC plant to deliver power into the mainlandgrids and into the Assam state grid. The overall transmission system upgrade will allow imports of power from the mainland grids as well. The NTPC plant is not economically dependent on the ADB-funded transmission line, as all of the power

red into the mainland grids. On this basis, the NTPC plant is not necessarily an associated facility. However, the Assam distribution companies have committed to buy 381 MW of power from the NTPC plant, and on this basis the NTPC plant may be deemed an associated facility. The plant is

standards at this time. NTPC has a corporate environmental, health, and safety (EHS) department, and is acknowledged as the one of the bestperforming power utility companies in India.6

environmental impact assessment (EIA) has been prepared and a No Objection Certificate (NOC) was issued by the Ministry of Environment and Forests (MOEF) on 7 June 2007, providing regulatory clearance to proceed with plant

The ADB project team visited the plant site in March 2009 and reviewed the EIA report. The following key findings are presented in the EIA report:

The plant will utilize a mix of low- and high-sulphur coal, some mined in eastern Assam, with maximum sulphur concentration of 1.97%. A wetdesulfurization (FGD) system will be installed to control sulphur dioxide (SO2) emissions. Electrostatic precipitators with 90% removal efficiency will be installed to control particulate matter (PM). • The World Bank 1998 stack emissions standards for NOx and SO2 will be met (stack emissions for PM are not reported in the EIA). The IFC 2008 stack emissions standard for NOx will not be met, but the standard for

funded activity include:(i) new replacement power plants at Bongaigaon and Namrup; and (ii) end-use energy efficiency investments and distributed generation. The power plants at Bongaigaon

ly of ADB. End-use efficiency and small hydropower plants, solar systems on residential and

commercial buildings) investments may be supported by ADB via financing to the

Associated Facilities are referenced in a footnote of the Resettlement OM, which states simply that if there are associated facilities with safeguards implications, then ADB may conduct due diligence. In practice, if a facility is economically dependent on ADB’s direct investment, then it is considered to be an “associated facility” and may be subject to due diligence. In the context of safeguards compliance, due diligence is limited to a determination of whether the facilities are in compliance with the host

Due diligence may logically include a review of potential financial risks.4 The safeguards categories of the ADB investments are

independently.5 The transmission project includes 2 possible

ADB financing is proposed for a transmission line which will evacuate power from a fired power plant at Bongaigaon (owned by NTPC, Ltd., an

x 60 MW coal-fired plant which was owned by the Assam Power Generation Company Ltd. The proposed

Figure A.5.1.3 The NTPC plant to deliver power into the mainland

grids and into the Assam state grid. The overall transmission system upgrade will allow imports of power from the mainland grids as well. The NTPC plant is not

funded transmission line, as all of the power red into the mainland grids. On this basis, the NTPC plant is not

necessarily an associated facility. However, the Assam distribution companies have committed to buy 381 MW of power from the NTPC plant, and on this basis the NTPC

ociated facility. The plant is considered to be in corporate environmental,

health, and safety (EHS) department, and is acknowledged as the one of the best-

environmental impact assessment (EIA) has been prepared and a No Objection Certificate (NOC) was issued by the Ministry of Environment and Forests (MOEF) on 7 June 2007, providing regulatory clearance to proceed with plant

The ADB project team visited the plant site in March 2009 and reviewed the EIA report. The following key findings are presented in the EIA report:

sulphur coal, some mined in eastern ur concentration of 1.97%. A wet-lime flue gas

desulfurization (FGD) system will be installed to control sulphur dioxide (SO2) emissions. Electrostatic precipitators with 90% removal efficiency will be installed to

he World Bank 1998 stack emissions standards for NOx and SO2 will be met (stack emissions for PM are not reported in the EIA). The IFC 2008 stack emissions standard for NOx will not be met, but the standard for



vi. Ambient air quality modellingand nitrogen oxides (NOafter the plant becomes operational.

FIGURE A.5.1.3 TRANSMISSION SYSTEM LAYOUT FROM BONGAIGAON POWER PLANT

vii. Cooling and process water will be reResidual process water and domestic sewage will be treated prior to discharge to the Tarang River. Ambient water quality in the river will be maintained.

viii. The EIA methodology and content are consistent with that required for ADB projects, except accounting of stack emissions could be presented in more detail. ADB has conducted due diligence on other NTPC power projects, with similar findings. NTPC has a well-developed envirowill contribute to the overall development objectives of the Assam power sector, with minimal environmental impact.

ix. ADB financing is proposed for a transmission line that will evacuate power from the Namrup gas-fired power plant, which comprises a total of 134 MW of gasgeneration units. The plant began operations in 1965 and currently generates a


Ambient air quality modelling predicts that ambient air quality objectives for SO2, PM, and nitrogen oxides (NOX) in industrial areas will be maintained in the project area after the plant becomes operational.


Cooling and process water will be re-cycled on-site to the maximum extent practical. Residual process water and domestic sewage will be treated prior to discharge to the Tarang River. Ambient water quality in the river will be maintained.

gy and content are consistent with that required for ADB projects, except accounting of stack emissions could be presented in more detail. ADB has conducted due diligence on other NTPC power projects, with similar findings. NTPC

developed environmental management system. The Bongaigaon project will contribute to the overall development objectives of the Assam power sector, with minimal environmental impact.

ADB financing is proposed for a transmission line that will evacuate power from the fired power plant, which comprises a total of 134 MW of gas

generation units. The plant began operations in 1965 and currently generates a

predicts that ambient air quality objectives for SO2, PM, ) in industrial areas will be maintained in the project area


site to the maximum extent practical. Residual process water and domestic sewage will be treated prior to discharge to the Tarang River. Ambient water quality in the river will be maintained.

gy and content are consistent with that required for ADB projects, except accounting of stack emissions could be presented in more detail. ADB has conducted due diligence on other NTPC power projects, with similar findings. NTPC

nmental management system. The Bongaigaon project will contribute to the overall development objectives of the Assam power sector, with

ADB financing is proposed for a transmission line that will evacuate power from the fired power plant, which comprises a total of 134 MW of gas-fired

generation units. The plant began operations in 1965 and currently generates a



maximum of about 75 MW of power. A new 100 MW combined combinedturbine (CCGT) plant is propois connected to the grid and will not rely on the ADBthe state grid. However, the new plant will benefit from the ADBtherefore may be considered as a

x. The new 100 MW CCGT power plant at Namrup will replace 134 MW of existing gas turbine plants owned by the Assam Power Generation Company Ltd., which originally entered service in 1965. An EIA has been prepared and a No Objection Cert(NOC) was issued by the Ministry of Environment and Forests (MOEF) on 31 December 2008, providing regulatory clearance to proceed with plant construction. The ADB project team visited the plant site in March 2009 and reviewed the EIA report. The following key findings are presented in the EIA report:

xi. The plant will utilize bestgas supplies. Low-NOX burner technology will be employed. PM and SO2 control are not required.

xii. Ambient air quality modeling predicts that ambient air quality objectives for SO2, and nitrogen oxides (NOX) in industrial areas will be maintained in the project area after the plant becomes operational.

xiii. Gas supplies are currently limited to 0.66 million metric sta(M m3/d), sufficient to power the new 100 MW unit plus one of the existing 23 MW gas turbine units. Overall generation efficiency will improve by 231,000 megawatthours per year (MWh/y), with an offset of 92,400 tons per year carequivalent (tCO2/y).

xiv. Total water use will increase from 600 m3/hour to 635 m3/hour. Cooling and process water will be treated onsufficient capacity to treat the wastewater flow freffluent will be used for watering green space within the plant boundaries. Residual process water and domestic sewage will be treated prior to discharge to the Dilli River. Ambient water quality in the river will be maintain

xv. The EIA methodology and content are consistent with that required for ADB projects, except accounting of stack emissions and wastewater discharge could be presented in more detail. The Namrup project will contribute to the overall development objectives of the Assam power sector, with minimal environmental impact.

xvi. The Bogaigaon power plant will have an additive effect due to increased air pollution loads. The Namrup plant is neutral with respect to air pollution and water pollution loads. Large hydropowcompensatory effect: more than 2000 MW of new rununder development, which will more than offset the air emissions from the thermal power plants. The overall pollution intewill decline.

6. Downstream Energy Services: Endi. The Energy Conservation Act (2001) provides the legal framework for end

efficiency (EE), and includes a provision for conservation funds (ECF) to facilitate EE investments. The Electricity Act (2003) includes provision for “open access,” which requires transmission system operators to connect independent power producers to the grid, and whicpurchase agreements directly between generators and distribution companies.


maximum of about 75 MW of power. A new 100 MW combined combinedturbine (CCGT) plant is proposed to replace the old units.8 The existing power plant is connected to the grid and will not rely on the ADB-funded line to dispatch power to the state grid. However, the new plant will benefit from the ADBtherefore may be considered as an associated facility.

The new 100 MW CCGT power plant at Namrup will replace 134 MW of existing gas turbine plants owned by the Assam Power Generation Company Ltd., which originally entered service in 1965. An EIA has been prepared and a No Objection Cert(NOC) was issued by the Ministry of Environment and Forests (MOEF) on 31 December 2008, providing regulatory clearance to proceed with plant construction. The ADB project team visited the plant site in March 2009 and reviewed the EIA

following key findings are presented in the EIA report:

The plant will utilize best-available gas-fired generation technology, using local natural NOX burner technology will be employed. PM and SO2 control are

ality modeling predicts that ambient air quality objectives for SO2, and nitrogen oxides (NOX) in industrial areas will be maintained in the project area after the plant becomes operational.

Gas supplies are currently limited to 0.66 million metric standard cubic meters per day (M m3/d), sufficient to power the new 100 MW unit plus one of the existing 23 MW gas turbine units. Overall generation efficiency will improve by 231,000 megawatthours per year (MWh/y), with an offset of 92,400 tons per year car

Total water use will increase from 600 m3/hour to 635 m3/hour. Cooling and process water will be treated on-site using existing wastewater treatment facilities, which have sufficient capacity to treat the wastewater flow from the new plant. Some treated effluent will be used for watering green space within the plant boundaries. Residual process water and domestic sewage will be treated prior to discharge to the Dilli River. Ambient water quality in the river will be maintained.

The EIA methodology and content are consistent with that required for ADB projects, except accounting of stack emissions and wastewater discharge could be presented in more detail. The Namrup project will contribute to the overall development

s of the Assam power sector, with minimal environmental impact.

The Bogaigaon power plant will have an additive effect due to increased air pollution loads. The Namrup plant is neutral with respect to air pollution and water pollution loads. Large hydropower development in the Northeast Region will have a compensatory effect: more than 2000 MW of new run-of-river hydropower plants are under development, which will more than offset the air emissions from the thermal power plants. The overall pollution intensity associated with power delivery to Assam

Downstream Energy Services: End -use Efficiency and Distributed GenerationThe Energy Conservation Act (2001) provides the legal framework for endefficiency (EE), and includes a provision for creation of stateconservation funds (ECF) to facilitate EE investments. The Electricity Act (2003) includes provision for “open access,” which requires transmission system operators to connect independent power producers to the grid, and whicpurchase agreements directly between generators and distribution companies.

maximum of about 75 MW of power. A new 100 MW combined combined-cycle gas sed to replace the old units.8 The existing power plant

funded line to dispatch power to the state grid. However, the new plant will benefit from the ADB-funded line and

The new 100 MW CCGT power plant at Namrup will replace 134 MW of existing gas turbine plants owned by the Assam Power Generation Company Ltd., which originally entered service in 1965. An EIA has been prepared and a No Objection Certificate (NOC) was issued by the Ministry of Environment and Forests (MOEF) on 31 December 2008, providing regulatory clearance to proceed with plant construction. The ADB project team visited the plant site in March 2009 and reviewed the EIA

following key findings are presented in the EIA report:

fired generation technology, using local natural NOX burner technology will be employed. PM and SO2 control are

ality modeling predicts that ambient air quality objectives for SO2, PM, and nitrogen oxides (NOX) in industrial areas will be maintained in the project area

ndard cubic meters per day (M m3/d), sufficient to power the new 100 MW unit plus one of the existing 23 MW gas turbine units. Overall generation efficiency will improve by 231,000 megawatt-hours per year (MWh/y), with an offset of 92,400 tons per year carbon dioxide

Total water use will increase from 600 m3/hour to 635 m3/hour. Cooling and process site using existing wastewater treatment facilities, which have

om the new plant. Some treated effluent will be used for watering green space within the plant boundaries. Residual process water and domestic sewage will be treated prior to discharge to the Dilli

The EIA methodology and content are consistent with that required for ADB projects, except accounting of stack emissions and wastewater discharge could be presented in more detail. The Namrup project will contribute to the overall development

s of the Assam power sector, with minimal environmental impact.

The Bogaigaon power plant will have an additive effect due to increased air pollution loads. The Namrup plant is neutral with respect to air pollution and water pollution

er development in the Northeast Region will have a river hydropower plants are

under development, which will more than offset the air emissions from the thermal nsity associated with power delivery to Assam

use Efficiency and Distributed Generation The Energy Conservation Act (2001) provides the legal framework for end-use

creation of state-level energy conservation funds (ECF) to facilitate EE investments. The Electricity Act (2003) includes provision for “open access,” which requires transmission system operators to connect independent power producers to the grid, and which allows for power purchase agreements directly between generators and distribution companies.



Current base load generation is less than demand, providing some incentive for EE and distributed generation (DG, generally smallor near the point of use). Typical EE applications are efficient lighting (replacement of incandescent bulbs with compact fluorescent lamps [CFLs] or light[LED] bulbs.), and efficiency improvements in refrigeration and heating. In Assam, one of the most common DG applications is captive dieselgenerating units, mainly used for captive power generation in industries and for stand-by operations in commercial buildings. Other DG applications being in Assam include villagesystems, and small hydropower (159 MW potential has been identified at 93 sites). DG systems may be stand

ii. EE and DG development would have compclearly provides compensatory benefits: endas “free” power,9 which reduce emissions and pollution intensity of central generating plants. Technical loss reductions in the dcore projects), along with other endcompensatory effects. During the past 5 years, technical losses in some areas have been reduced to around 10 10% systems-wide reduction in total consumption, particularly in domestic, commercial, and industrial sectors.

iii. DG will be compensatory if renewable energy technologies are employed (e.g., small hydropower and solar PV), fuels are used. The core project is expected to reduce reliance on standby dieselgenerators, with a net compensatory effect. ADB support for the nascent Assam ECF could accelerate EE and DG

7. Industrial Growth iv. Future industrial growth appears to be a certainty based on the Government of

Assam’s economic development plans. Several industrial estates are being established with an expectation of gridDG systems for power supply, which gas or RE technologies are employed. Increased air, wastewater, and solid waste emissions can be expected from nefactors are land use planning (industrial estates), and enforcement of existing EIA and environmental management regulations.

8. Agricultural Developmentv. Agricultural productivity increases are reasonably foreseeable

supplies limit the amount of groundwater which can be pumped for irrigation, and most farmers can only produce one crop per year Assuming that the core project will facilitate sufficient power supplies, double100% increase in groundwater withdrawals (vs. projected demand growth of 45%). At present, only about 22% of groundwater resources are being exploited, therefore any additive effects would be minimal. Synergistic effects could resultin chemical fertilizer applications, but the incremental expense to farmers is a limiting factor. Increased cropping should improve farmers’ incomes, which is consistent with economic development objectives.

9. Conclusions vi. The proposed ADB fina

state electricity grid, with significant reduction in emissions intensity from upstream


Current base load generation is less than demand, providing some incentive for EE and distributed generation (DG, generally small-scale generation capacity instaor near the point of use). Typical EE applications are efficient lighting (replacement of incandescent bulbs with compact fluorescent lamps [CFLs] or light[LED] bulbs.), and efficiency improvements in refrigeration and

Assam, one of the most common DG applications is captive dieselgenerating units, mainly used for captive power generation in industries and for

by operations in commercial buildings. Other DG applications being in Assam include village-scale biomass gasification, rooftop solar photovoltaic systems, and small hydropower (159 MW potential has been identified at 93 sites). DG systems may be stand-alone or grid-connected.

EE and DG development would have compensatory and possibly masking effects. EE clearly provides compensatory benefits: end-use efficiency gains can be thought of as “free” power,9 which reduce emissions and pollution intensity of central generating plants. Technical loss reductions in the distribution network (directly resulting from the core projects), along with other end-use efficiency improvements, will provide compensatory effects. During the past 5 years, technical losses in some areas have been reduced to around 10 - 15%. An aggressive EE program could probably achieve

wide reduction in total consumption, particularly in domestic, commercial, and industrial sectors.

DG will be compensatory if renewable energy technologies are employed (e.g., small hydropower and solar PV), but could be considered masking or even additive if fossil fuels are used. The core project is expected to reduce reliance on standby dieselgenerators, with a net compensatory effect. ADB support for the nascent Assam ECF could accelerate EE and DG investments, with compensatory effects.

Future industrial growth appears to be a certainty based on the Government of Assam’s economic development plans. Several industrial estates are being established with an expectation of grid-supplied power. Industrial estates can employ

ystems for power supply, which could have compensatory effects if natural gas or RE technologies are employed. Increased air, wastewater, and solid waste emissions can be expected from new industrial development. The factors are land use planning (industrial estates), and enforcement of existing EIA and environmental management regulations.

Agricultural Development Agricultural productivity increases are reasonably foreseeablesupplies limit the amount of groundwater which can be pumped for irrigation, and most farmers can only produce one crop per year Assuming that the core project will facilitate sufficient power supplies, double-cropping could theoreti100% increase in groundwater withdrawals (vs. projected demand growth of 45%). At present, only about 22% of groundwater resources are being exploited, therefore any additive effects would be minimal. Synergistic effects could resultin chemical fertilizer applications, but the incremental expense to farmers is a limiting factor. Increased cropping should improve farmers’ incomes, which is consistent with economic development objectives.

The proposed ADB financing program will improve energy efficiency in the Assam state electricity grid, with significant reduction in emissions intensity from upstream

Current base load generation is less than demand, providing some incentive for EE scale generation capacity installed at

or near the point of use). Typical EE applications are efficient lighting (replacement of incandescent bulbs with compact fluorescent lamps [CFLs] or light-emitting diode [LED] bulbs.), and efficiency improvements in refrigeration and space cooling and

Assam, one of the most common DG applications is captive diesel-fired generating units, mainly used for captive power generation in industries and for

by operations in commercial buildings. Other DG applications being pursued scale biomass gasification, rooftop solar photovoltaic

systems, and small hydropower (159 MW potential has been identified at 93 sites).

ensatory and possibly masking effects. EE use efficiency gains can be thought of

as “free” power,9 which reduce emissions and pollution intensity of central generating istribution network (directly resulting from the use efficiency improvements, will provide

compensatory effects. During the past 5 years, technical losses in some areas have e EE program could probably achieve

wide reduction in total consumption, particularly in domestic,

DG will be compensatory if renewable energy technologies are employed (e.g., small but could be considered masking or even additive if fossil

fuels are used. The core project is expected to reduce reliance on standby diesel-fired generators, with a net compensatory effect. ADB support for the nascent Assam ECF

investments, with compensatory effects.

Future industrial growth appears to be a certainty based on the Government of Assam’s economic development plans. Several industrial estates are being

d power. Industrial estates can employ could have compensatory effects if natural

gas or RE technologies are employed. Increased air, wastewater, and solid waste velopment. The primary mitigating

factors are land use planning (industrial estates), and enforcement of existing EIA

Agricultural productivity increases are reasonably foreseeable. Current power supplies limit the amount of groundwater which can be pumped for irrigation, and most farmers can only produce one crop per year Assuming that the core project will

cropping could theoretically result in a 100% increase in groundwater withdrawals (vs. projected demand growth of 45%). At present, only about 22% of groundwater resources are being exploited, therefore any additive effects would be minimal. Synergistic effects could result from increase in chemical fertilizer applications, but the incremental expense to farmers is a limiting factor. Increased cropping should improve farmers’ incomes, which is consistent with

ncing program will improve energy efficiency in the Assam state electricity grid, with significant reduction in emissions intensity from upstream



power plants. Emissions from some downstream consumers will also be reduced. The associated facility at Namrupreduced emissions intensity after expansion. The associated facility at Bongaigaon is owned by an existing ADB client with has a good environmental performance track record. The environmental impacbeen obtained and reviewed to determine the possible impacts on ambient air quality. As gas supplies to the Namrup plant are currently limited to 0.66millionm3/d, any increases in ambient air pollutant loadsconsistent with air dispersion modeling conducted for the EIA. The EIA for the Bongaigaon plant also concluded that ambient air quality standards will be met after the plant becomes operational. Othebe met after the power plants become operational. Based on the review conducted to date, the associated facilities do not have significant environmental impacts.

vii. Downstream investments in EE and DG are expected to haCumulative and induced impacts are expected to result from agricultural and industrial sector growth. In the case of agriculture, a 100% increase in groundwater pumping for irrigation would still result in use of less than 50% of tresources. Additive impacts from industrial development will be mitigated by rational land use planning and enforcement of existing environmental regulations.

The ADB-funded investments will have cumulative and inducedmitigated effectively under the current regulatory regime, and are considered to be insignificant.


power plants. Emissions from some downstream consumers will also be reduced. The associated facility at Namrup is a clean energy power plant which will have reduced emissions intensity after expansion. The associated facility at Bongaigaon is owned by an existing ADB client with has a good environmental performance track record. The environmental impact reports for the 2 associated power plants have been obtained and reviewed to determine the possible impacts on ambient air quality. As gas supplies to the Namrup plant are currently limited to 0.66millionm3/d, any increases in ambient air pollutant loads will be insignificant; this conclusion is consistent with air dispersion modeling conducted for the EIA. The EIA for the Bongaigaon plant also concluded that ambient air quality standards will be met after the plant becomes operational. Other ambient environmental objectives will be met after the power plants become operational. Based on the review conducted to date, the associated facilities do not have significant environmental impacts.

Downstream investments in EE and DG are expected to have compensatory impacts. Cumulative and induced impacts are expected to result from agricultural and industrial sector growth. In the case of agriculture, a 100% increase in groundwater pumping for irrigation would still result in use of less than 50% of the identified groundwater resources. Additive impacts from industrial development will be mitigated by rational land use planning and enforcement of existing environmental regulations.

funded investments will have cumulative and induced impacts, which can be mitigated effectively under the current regulatory regime, and are considered to be

power plants. Emissions from some downstream consumers will also be reduced. The is a clean energy power plant which will have

reduced emissions intensity after expansion. The associated facility at Bongaigaon is owned by an existing ADB client with has a good environmental performance track

t reports for the 2 associated power plants have been obtained and reviewed to determine the possible impacts on ambient air quality. As gas supplies to the Namrup plant are currently limited to 0.66millionm3/d, any

will be insignificant; this conclusion is consistent with air dispersion modeling conducted for the EIA. The EIA for the Bongaigaon plant also concluded that ambient air quality standards will be met

r ambient environmental objectives will be met after the power plants become operational. Based on the review conducted to date, the associated facilities do not have significant environmental impacts.

ve compensatory impacts. Cumulative and induced impacts are expected to result from agricultural and industrial sector growth. In the case of agriculture, a 100% increase in groundwater pumping for

he identified groundwater resources. Additive impacts from industrial development will be mitigated by rational land use planning and enforcement of existing environmental regulations.

impacts, which can be mitigated effectively under the current regulatory regime, and are considered to be



ATTENDANCE SHEET OF PUBLIC CONSULTATION AT THE SUB


SHEET OF PUBLIC CONSULTATION AT THE SUB

220kV Sonabil Substation

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Annexure 6

SHEET OF PUBLIC CONSULTATION AT THE SUB -STATIONS




209

Annexure



220/132/33kV Sonapur SubstatioAssam Electricity Grid Corporation Limited

220/132/33kV Sonapur Substatio n 210

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Annexure




212

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132/33kV Hailakandi Substation 213

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214

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132/33kV Jorhat (West) 215

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Annexure




Annexure




132kV Khamakya Substation

219

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132/33kV Bordubi Substation

220

Annexure




221

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132/33kV Bilasipara Substation

222

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223

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PHOTOGRAPHS OF CONSULTATION AT SUB

132/33kV Jorhat (West) Substation


PHOTOGRAPHS OF CONSULTATION AT SUB -STATIONS

132/33kV Haila kandi Substation

132/33kV Matia Substation

132/33kV Jorhat (West) Substation

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Annexure 6.1

STATIONS



132/33kV Kamakhya Substation

132/33kV Bordubi Substation


132/33kV Kamakhya Substation 132kV Bilasipara Substation

220/132kV Sonapur Substation

132/33kV Bordubi Substation 220/132/33kV Son abil Substation

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132kV Bilasipara Substation

abil Substation



ATTENDANCE SHEET OF PUBLIC CONSULTATION AT TRANSMISSION


SHEET OF PUBLIC CONSULTATION AT TRANSMISSION

220kV Mariani – Namrup line

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Annexure 6.2

SHEET OF PUBLIC CONSULTATION AT TRANSMISSION LINES




227

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220kV and 132kV line at SonabilAssam Electricity Grid Corporation Limited

220kV and 132kV line at Sonabil LILO 228

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230

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132kV Jorhat – Bokakhat T/L

231

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232

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Annexure




Annexure




132kV Agai-Matia T/L

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Documents

Initial Environment Examination · 2018-02-26 · Initial Environment Examination This report has been submitted to ADB by the Assam Power Distribution Company Limited, Guwahati and