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SETHUSAMUDRAM
SHIP CANAL PROJECT
TERMS
OF REFERENCE
1.1
Assignment – 1 : To establish Techno-Economic
Viability of the Project :
(i)
To study future traffic potential over a short, medium
and long term time horizon (2020 AD). in terms of volumes of
cargoes in tonnage and also number, size and category of ships
like container, dry
liquid bulk and other types of vessels taking into due
consideration the future economic growth in the liberalized
economic regime, GNP/GDP growth, hinterland developments, likely
competition from other modes of transports like pipelines (for
liquid bulk transport). Railways and Roadways, growth of nearby
national and regional ports, national targets of shipping over
the time horizon of assessment of traffic potential, prospect of
development of container ‘hub’ port(s) in the vicinity like
Tuticorin, Cochin etc., with the objective to establish the need
for Sethusamudram Ship Canal Project for use by ships which are
likely to be deployed in carrying the assessed sea borne trade.
(ii)
From the above, to arrive at the optimal design size viz.
DWT/TEUs, LOA, Beam, Draught (max), for the design of canal from
economic considerations; while doing so, to examine the
alternative of moving in large vessels (like VLCCs, modern bulk
carriers) on the existing routs (going round Srilanka) and
operation of relatively smaller vessels through the proposed
canal.
(iii)
To study the earlier reports on Sethusamudram Ship Canal
Project, especially the Laxminarayan’s Committee Report (1983)
and the Initial Environmental Examination (IEE) Report(1998), by
the National Environmental Engineering Research Institute (NEERI),
Nagpur, which made an initial examination of the environmental
aspects related to the project based on the limited data already
available/collected.
To start with, critically examine the new alignment of
canal suggested in the NEERI’s Report, with reference to
environmental factors, navigational aspects, morphological
aspects, sedimentation likely to be induced by the cross
currents in the canal after its creation and during operation
with a view to establish, prima facie, suitability of the
alignment.
If the alignment is found, prima facie, to be not
suitable suggest any changes/modification taking into account
various aspects such as sea bed movements sedimentation,
dredging, navigation, security considerations, proximity of the
medical line between India and Sri Lanka etc.
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(iv)
Based on the suggested, modified alignment, assess the required
marine, geophysical, hydrographic and hydraulic
(mathematical-simulated ) investigations required to be carried out to
confirm the modified alignment, the dredge depths, canal dimensions,
quantum and material of dredging, disposal grounds (offshore and
onshore) etc.
To conduct necessary topographical, seismic and confirmatory
geo technical investigation including land and marine bore holes at 2
km. Intervals to study soil stratification profiles with special
reference to dredge ability, hydrographic, hydraulic and coastal
morphological investigations, for the acceptable canal lay out arrived
at (iii) above. The bore holes may have to be either along the center
line or in two parallel lines as determined by the ‘Engineer’. If
changes in sea bed profiles are encountered especially hard/rocky sea
beds warranting additional confirmatory bore holes at closer interval,
such bore holes have also to be done for detailed classifications and
volume computations. Hydrographic survey shall be conducted with grids
of 100m intervals along the canal with determination of hard strata at
the same interval with accurate and suitable echo/seismic instruments.
To further simultaneously collect the required basic data of
the sea sea bed with particular reference to the ‘Environment Impact
Assessment’ study to be conducted (under Assignment-2, if decided by
the Govt. of India)
(v) To collect the necessary marine and meteorological data like
winds, waves, tides, currents fresh water inflows and other
climatologically data required for the study (including EIA study) and
cyclonic data for the last 30 years and consolidate them and for the
present study, collect these data for the current year covering both
the N-E and S-W monsoons and non- monsoons period by installing
suitable instruments/data buoys etc., and also to assess the sea bed
movement, siltation and sedimentation patterns etc., for the entire
cyclic period.
(vi)
To work out the technical parameters of the canal, keeping in
view the optimal design ship as arrived
at para (ii) above and review the technical parameters of the canal so
arrived as above in the light of the results of the geotechnical and
other investigation results referred to in para (iv) and (v) above
with a view to optimize the dimensions and lane widths of the canal,
to arrive as a techno-economically viable option of the canal.
(vii)
The assess and conduct necessary mathematical model studies and if
necessary to prove by hydraulic model to confirm the technical
parameters finally arrived under (vi) above.
(viii)
From the foregoing studies to establish other broad parameters in
terms of the dimensions like additional canal widths, including
widening at segmental turning points if required for single lane or
widths for two lane canal traffic.
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(ix) (a) To estimate
the quantum of capital dredging-soil classification wise (according to
PIANS standards) and to
the required level of dredging with reference to Chart Datum
indicating the nature physical and chemical properties and also to
assess the dredgeability of
the sea bed based on the results of investigations referred to in para
(iv) above, testing for UCS, tensile strength grain size, compaction,
shear strength, density, cohesive properties, plasticity index etc.
and all other assessments as appropriate to soils and/rocky sea bed
identified including special properties like ‘Total Core Recovery’
(TCR), ‘Rock Quality Designation’ (RQD) etc.
(b) To compute the
dredge volumes reachwise with reference to principal dimensions of the
canal taking into account appropriate side slopes according to
international standards and inclusive of dredging tolerances to the
identified dredge materials and the type of dredge.
(c) To spell out on-shore and off-shore disposal areas
(within Indian territory) of the dredged materials to satisfy the
statutory requirements of State/Central Govn. Deptt.,/Ministry of the
Chief Conservator of Forests, Archaeological Deptt., Tamilnadu
Pollution Control Board, Tamilnadu Maritime Board etc., so as to
ensure that the dumping of dredged materials will not adversely affect
the water quality and in case of open dumping in sea water to further
ensure that there is no large movement of material from the dumping
spot detriment to adjoining coastlines on either side of the canal. In
case of onshore disposal, the type and dimensions of bunds, filter
etc., are to be suitably designed to avoid/minimize adverse effects
like disturbance to the ecosystem, coastal erosion, seepages into the
land sea etc.
(d) To assess the quantum of maintenance dredging per
annum, the periodicity of such dredging the locations, the dredgeable
period and their disposal locations.
(x)
Based on the above and taking into account the available
working seasons to carry out dredging effectively in the quickest
possible time, to work out and suggest the best suited methods, type
and capacity of main and ancillary dredging equipment(s) as well as
other equipments for the dredging, transportation and dumping disposal
of the dredged materials.
(xii)
To furnish
(a)
the details of the other components/ancillary requirements of
shipping canal, like leading breakwaters/dolphins, land canal/lock,
navigational aids, appropriate Vessel Traffic Management System/Radar
System, flotilla such as tugs, launches, mooring boats etc.
(b)
land acquisition details which are required for creating
on-shore facilities for administration, operation and maintenance of
the canal system at required locations
(c)
other ancillary facilities required along the canal for proper
operation
(d)
any other requirements for better construction, operation and
maintenance
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(x)
Based on the above and taking into account the available
working seasons to carry out dredging effectively in the quickest
possible time, to work out and suggest the best suited methods, type
and capacity of main and ancillary dredging equipment(s) as well as
other equipments for the dredging, transportation and dumping disposal
of the dredged materials.
(xiii)
To work out realistic time frame to execute the project in terms of
number of months, working conditions, fair weather seasons etc., and
to furnish a detailed schedule of implementation of the project
including mobilization and demobilization period.
(xiii)
To furnish the total project cost including the following:
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Preliminaries
including initial surveys and site investigations
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Mobilisation
costs of the dredging equipment including transportation to
dredging site
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Actual
dredging costs for various types of dredge materials by the chosen
type of dredger and its ancillary equipment plus site over heads
transportation and dumping at the chosen sea land locations.
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Cost
of construction of reclamation bund dykes including providing
necessary filter media to contain the dredge materials including
spill over/weir bunds.
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Demobilisation
costs of dredging equipment including site clearing
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Costs
of navigational locks if required (which may have to be seen in
detail), office buildings and their access roads and connected
ancillary facilities
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VTMS,
Tugs, Launches, Navigational Aids etc.
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Any
other appurtenant works considered necessary
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Environment
protection and compensatory measures
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Capitalisation
of interest.
Note:
While furnishing the cost of
works especially dredging, foreign exchange components for each of the
items, duties, taxes, insurance, interest components involved the
costs of fuel, wages, lubricants third party hire, repairs and
maintenance shall be brought out separately.
(xiv)
To work out financial viability of the project duly taking into
account the initial capital cost and recurring annual
operating/maintenance costs and the ‘direct revenue’ from canal
does tarrifs(tolls) from
the vessels using the canal and furnish the financial IRRs including
sensitivity analysis.
(xv)
To work out the socio economic benefits on account of the
project like saving in travel time of ships saving in fuel
consumption, savings to shippers, saving in foreign exchange etc. To
study the savings in costs of transportation of goods over the
international routes through the canal and by-passing the canal to
enable to appreciate the usefulness/viability of the project. Based on
the above data furnishing economic IRRs including sensitivity
analysis.
a)
Through a joint venture between the State Govt., Central Govt.,
and selected shipping interests.
b)
Non government joint venture firms who are interested in the
shipping, along with the participating ports in the vicinity.
c)
Any other arrangements the consultant may suggest with broad
Terms of Reference for the recommended arrangement.
While
suggesting the alternatives, the consultants shall take care of the
latest government policies and guidelines on the matters of
privatization and attraction of global investment.
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1.2
Assignment 2: To conduct a detailed Environment Impact
Assessment (EIA) Study.
(i)
On the basis of data collected, assessment made and inferences
drawn in the study under Assignment 1, to assess and work out the base
parameters for the detailed Environment Impact Assessment.
In case of further necessity, to collect additional
confirmatory on site data like current/sediment movement to conduct
the required mathematical model studies to be used as input for the
Environment Management Studies.
(ii)
On the basis of data collected above to conduct detailed
Environment Impact Assessment of the project as per guidelines issued
by the Ministry of Environment & Forest, New Delhi and as per the
scope of EIA study as given in Annex-1, covering physical ecological,
human/economic development resources, quality of life values,
fisheries, coral reef, microorganisms, archaeological/historical,
aesthetics and human health; water quality parameters at three levels
(surface, mid depth and bottom) covering all the physico-chemical,
chemical and biological parameters, bottom sediment sampling etc. both
at dredging site and dumping sites for dredged materials. The
consultants may also consult the reputed NGOs like M.S. Swaminathan
Committee etc. for Bio-diversity for Palk Bay Marine National Park
etc. The study shall comprehensively cover the effects of
(a) dredging transportation and disposal of dredged materials
during capital and maintenance dredging like interference with
fishing, increased turbidity, disturbance to the flora and fauna,
coastal erosion, objectionable odour during transit of dredged
material along with the disposal route, pollution due to any leakage
in transfer modes through dredgers, barges pipelines etc.
The likely effects on the islands/coral reefs near the shore offshore
on the sides of the shipping land, disturbances to the existing
installations such as underwater cables, pipelines, sewer outfalls
maintenance buoys, objectionable noise and
(b) ship movements in the operational phase of the canal.
(iii)
To prepare detailed Environment Impact Statement (EIS) duly
bringing out the likely impacts of the project, mitigation, protection
and enhancement measures including impacts due to disposal of dredged
materials, consideration of alternatives, ‘no change alternative’
etc with a summary and conclusion of the analysis, bringing our
details of impacts on siltation erosion due to dredging, sediment
pollution, effect on flora and fauna and effects on water quality and
quality, noise pollution etc. both at dredging and dumping locations
and to study the inherent polluting properties of the dredged
materials and the resulting impact on the environment. To cover
further, the environment degradation, effect on flora and fauna,
ground water pollution in the adjacent areas, entry of toxic
components and consequent effect on food nutrition value,
damage/interferences to recreation facilities onshore etc. Each of
these impacts like soil erosion/shore line changes, sediment
transport, siltation, fisheries, aquatic bacteria micro organisms
suspended sediment concentrations, shall be weighed against the
expected advantages like employment potential, economy of hinterland,
traffic to ports etc and thus to make Environment Impact Statement.
(iv)
To prepare Environmental Management Plan (EMP) mainly covering
mitigation measures at dredging sites, transportation route (of
dredged spoil), and dumping site against air pollution, water
pollution, land pollution and noise pollution and ship traverses
through the canal and the maintenance dredging. EMP may essentially
consist of details of work proposed under mitigative measures,
implementation schedule of such measures, fund and manpower
requirements and arrangements for monitoring on a long term basis.
(v)
To make a presentation of the draft EIA
Report to the various governmental agencies like MOST, MOEF,
New Delhi and Environmental authorities of State Govt., NGOs etc to
their views and comments on the draft Report.
(vi)
To finalise the draft report in the light of the outcome of the
exercise at (v) above and submit the final report.
The detailed time frame for the completion of the Assignments 1
and 2 is given in Annex -2
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Annex
- I
Scope
for Comprehensive Environment Impact and Ecological Risk Assessment
1.
Environment Impact Assessment : Broad Scope of Work
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Collation
collecting of data on benthic flora fauna, meiobenthos,
macrobenthos, detritus for pre and postmonsoon seasons
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Collation
Collection of data on phytoplankton, zooplankton in water column
for pre and postmonsoon seasons
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Assessment
of general physico-chemical quality of water in pre and
postmonsoon seasons
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Assessment
of sediment quality and its texture
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Fishery
potential of the region (10 years data)
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Collection
of data on bathymetry, sediment transport, water current and
directions, wave height, tidal variation, dispersion coefficients
and other hydroqraphic parameters in pre and post monsoons for
both spring and neap tides
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Surface
Current Radar measurements of currents using OSCR equipment
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Collection
of information on marine parks and ecologically sensitive species
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Study
of landuse pattern through satellite imageries.
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Assessment
of qualitative and quantitative waste load likely to accrue from
development activities in the hinterland all along the canal
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Information
on type of cargo to be handled and development of satellite ports
jetties for
functioning of the route.
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Identification
of discharge from land into coastal waters all along the length of
canal.
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Assessment
of change in hydrographic patterns in the region during and after
implementation of dredging activity vis-à-vis impact on coastal
ecosystems through three dimensional hydrodynamic modeling.
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Ecosystem
modeling capable of quantifying relationship between abiotic and
biotic components in the system
Ecosystem characteristics : Measurements on pelagic foodchain
productivity, growth of benthos and vegetation phytoplankton
densities, predatory fish and birds in the coastal waters.
2.
Environment Impact Assessment : Detailed scope of Work
2.1
Water Environment
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Baseline
status of marine/ freshwater quality and quantity
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Dehneation
of hydrodynamic conditions ( tide, current, wind and waves)
including the pattern of movement of sea-bed material in the
project area
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Assessment
of impact of dredging (construction & maintenance) on land
marine water quality
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Impact
of discharges from ships and effluents from on-shore facilities on
marine water quality
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Prediction
of impacts of the project on other natural marine processes
2.2.
Biological Environment
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Collection
of available information on both terrestrial and aquatic flora and
fauna, including rare and endangered species in the project area
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Assessment
of species diversity, density, abundance and vegetation cover in
the project area
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Assessment
of the ecology and biology pf creeks, backwaters and streams
influenced by tidal action and margrove ecosystem
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Estimation
of anticipated impacts on fisheries and other useful aquatic flora
and fauna
2.3
Air Environment
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Design
of ambient air quality monitoring work
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Measurement
of convenient and industry specific pollutants, if any
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Collection
of micro-meteorological data
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Quantification
of emission sources, if any
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Delineation
of baseline ambient air quality status
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Evaluation
of existing pollution control facilities
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Assessment
of impacts on flora and fauna-mitigation measures
2.4
Noise Environment
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Measurement
of background noise levels in residential, commercial, industrial
and sensitive areas
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Estimation
of noise levels due to stationary and mobile sources.
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Prediction
of noise levels around the proposed project site
2.5
Socio-economic Health and Cultural Components
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Collection
of baseline data on demography, infrastructure, economy, health
status of community, and existing facilities for social welfare
and health care
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Collection
of information relating to monuments/sites of cultural,
historical, religious, archaeological or recreation importance
including wild life sanctuaries and national parks likely to be
affected by the proposed project
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Estimation
of disruption in social life due to relocation of human
settlements and assessment of rehabilitation requirement
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Assessment
of existing quality of life in the project affected villages and
anticipated changes in the same due to the proposed project
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Prediction
of impact due to change in population, density, and distribution
of emigrant construction workers
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Impact
on tourism and recreation activities in and around the project
area.
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3.1
Risk Assessment : Broad Scope of Work
·
Hazard identification taking resource to hazard indices,
inventory analysis etc.
·
Generation of release scenarios for escape of hazardous
substances in the coastal/ocean environment
·
Computation of damage distances through consequence analysis
·
Assessment of risk on the basis of the above evaluation
3.2
Risk Assessment Detailed Scope of Work
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Hazard
Identification
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Collection
of relevant information related to the proposed activities
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Study
of vulnerable operations from various activities using the Maximum
Credible Accident (MCA) analysis
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Identification
of hazard prone activities and regions and computation of damage
distances based on probable accident scenarios
Hazard
Assessment and Evaluation
Cru
examination of hazard prone activities and regions with an accent on
quantification of hazard and its evaluation. The formalized techniques
to be used are:
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Consequence
Analysis and Vulnerability Analysis
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Individual
Risk curves
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Estimation
of extent of damage and computation of individual risk
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Delineation
of risk mitigation measures
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Delineation
of on-site and off-site emergency preparedness plan
3.3
Ecological Risk Assessment : Broad Scope of Work
Quantification
of ecological risks and delineation of ecologic risk mitigation
measures
3.4
Ecological Risk Assessment : Detailed Scope of Work
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