Draft Environmental Impact Assessment Report - Meghalaya State ...

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Executive Summaryranking and matrix method in two parts viz. without mitigation measures and withmitigation measures. Total scores achieved were -1820 and +1685 respectively.0.8 ASSESSMENT OF ENVIRONMENTAL IMPACTSDraft Environmental Impact AssessmentEs - vi
Rehabilitation and Up gradation of existing 2 lane to 2 lane with paved shoulder from Jowai (km 69.2) to Meghalaya/ Assam Border (km 173.20) Section of NH-44 in theState of Meghalaya under NHDP Phase-III Programme (Package No. NN/DL2/4)Table Es. 4 Potential Impacts and Mitigation MeasuresEnvironmental ConcernsMitigation MeasuresLocationsSurface waterchannels andground wateraquifersRivers and streams may getaffected due to siltation, oilspills during construction.Road runoff with grease/ oil,hydrocarbons and metallicions may into the waterchannels during operationIn both cases it may alsocontaminate ground waterConstruction work and location of plant and machinery nearwater bodies will be avoided.Construction of Oil and grease interceptors refueling platformsAn enhancement plan to be prepared for the protection ofsprings and water fallAll waste arising due to project activities will be disposed of indesignated areas identified by the supervision consultantduring implementation, as per State Pollution Control BoardnormsAt all waterbodies near thework front.Packaged sewage treatment system shall be used in thelabour campsSilt Fencing & sediment traps.Water quality monitoring planConstruction of bridges in lean seasonCofferdams for deep foundationsAppropriate drainage designNatural drainage shall be maintained74.8 km of unlined drain and 3.36km of stone masonry drainhas been proposed that will take care of the runoff; rechargepits shall be provided wherever feasible and let the water passthrough oil/ grease interceptor.Air pollution Fugitive and gaseousemission may increaseduring construction and willbe temporaryEmission from plyingvehicles during operationConstruction camps shall be at 1000m down wind directionfrom the settlementsConstruction machinery will be fitted with dust extractionunits.All vehicles delivering materials to the site will be covered toavoid spillage of materials.All vehicles, equipment and machinery used for constructionThroughout theProjectCorridor atplaces whereconstructionmachinery willbe sitedDraft Environmental Impact AssessmentEs - vii
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Rehabilitation and Up gradation of
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Analysis of AlternativeTable 5.1 :
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Analysis of AlternativeImpact score
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Importance Value/Weightage ValueAcq
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Operation stageAirConstruction stag
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Ground Water QualityConstruction st
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SoilConstruction stageEnvironmentco
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Construction Sites andConstruction
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Format No.ItemImplementationand Rep
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Public ConsultationTo solicit the v
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PercentagePublic Consultation7.1.3
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Public ConsultationTable 7.3: Findi
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Public Consultation7.1.5 CONTINUED
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Public Consultation7.2.4 PEDESTRIAN
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Environment Management PlanTable 9.
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Environment Management PlanConstruc
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Environment Management PlanEnvironm
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Environment Management PlanPollutan
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Environment Management PlanSl.No.Su
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Environment Management PlanSl.No.Su
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Environment Management Plan9.8.3 En
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GLOSSARYEnvironmentBiosphereEco-sys
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