Draft Environmental Impact Assessment Report - Meghalaya State ...

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Executive SummarySectionChainage (km)FromToTotal(km )Rock Types% wiseDistributionI 64 73 9.0 Gneissic Rock with Schist 8.4II 73 88 15III 88 123 35Sand Stone with quartziteand shale (without coalseam)Sand Stone and Shale (withcoal seam)IV 123 139 16 Lime stone with shale 15V 139 171 32Thinly bedded shale withsand stone and clay stone1432.730The major structural features seen in the area are Dauki fault (km 140) and Boraghatfaults (km 131). Dauki fault separates sand stone and clay stone of Brail group with rocksof Jaintia group near Sonapur. The Boraghat fault separates the rocks of Brail formationwith sand stone of Sylhat formation. The structural features used for hazard zonationmapping includes, beddings, joints and foliation.Land slide hazard zone mappingMapping has been done based on Landslide Hazard Evaluation Factor (LHEF) RatingScheme to assess the risk of landslide. It is based on major inherent causative factors ofslope instability, lithology, structure, slope morphometry, relative relief, land with soilcover and ground water conditions. 28 such locations have been identified along theproject road.Surface water resources and qualityTwo major rivers viz. Lubhaa River, Baleshwar river and seasonal streams viz. Muksa,Motaiya, Narpu, Tamung, Umjrung, Tongsheng, Umprushung, Apha are crossed by theproject road. Monitoring has been done at four locations viz. Muksa in Ladrymbai, streamin Mumdihatti, Lubha river and Baleshawar river. Biochemical oxygen demand for allsamples are >3mg/l (Water quality Criteria Below C as per CPCB standards). In terms oftotal coliform its less than 500 and falls in Water quality criteria B. E-coli is absent in allsamples. The water quality is fair in all the locations and mainly because they are flowingwater bodies.Ground water resources and qualityDepth to ground water table is 2.49 to 3.99 mbgl in pre- monsoon and 1.5 to 1.7 m bgl inpost monsoon. Stage of ground water development is only 0.16% which leaves a greaterscope for ground water development and hence no requirement of provisions for groundwater recharge. There are 8 hand pumps, 16 water taps and 1 tank in the project corridorwithin 5 to 9 m of center line. The water samples are deficient in iron (
Rehabilitation and Up gradation of existing 2 lane to 2 lane with paved shoulder from Jowai (km 69.2) toMeghalaya/ Assam Border (km 173.20) Section of NH-44 in the State of Meghalaya under NHDP Phase-IIIProgramme (Package No. NN/DL2/4)Ratacherra primary school (sensitive location) is higher by 2 dB(A). Near church inThangskai village its more by 2.9 dB (A) than Day time permissible limit and within limit atnight time. In Sonapur and Umkiang it exceeds by approximately 5 dB(A) in the day time.Ecological ResourcesProtected site / Notified forest / wildlife areaThe project road passes through Narpuh Reserve forest from Lubha Bridge at km141.500to km 145.00 (Block -I) and km 160.00 to km 167.100 (Block -II). Forest land proposed tobe diverted is 2.805 ha. The project road does not pass through any wild life sanctuary.Also no site or monument notified by Archeological survey of India does exist within 10kms of the project road.FloraRoadside vegetation all along the stretch varying id densities and composition representsthe major ecological component of the project corridor. The girth size class distributionalso indicates that there is a considerable difference in distribution of age classes. Themost common species is pine and others include Kseh, Ngan, Lakhar, Salynda, Sochram,Diengkseh, Kwai, Talong, Jympa, Kathol, Cham etc. The vegetation not only providesfruits, flowers, fuelwood and small timber for the roadside communities. This is also thehabitat of common birds of the region. No endangered floral species does exist within theproject corridor. A total of 3450 trees have been identified as likely to be cut includingboth in forest and non- forest areas.FaunaThe species found here are - Hoolock - the only tailless ape in India, Golden Cat, LeopardCat, Jungle Cat, Large Indian Civet, Binturong or Bear Cat, Himalayan Black Bear,Barking Deer, Pangolin.0.6 PUBLIC CONSULTATIONThe consultation process established for the project has employed a range of formal andinformal consultative tools including in depth interviews with likely key informants, focusgroups discussions (FDGs), onsite consultation and meetings. The enactment of theparticipation and consultations with the stakeholders was done at various levelsthroughout the project preparation stage. District level consultation shall be carried outinvolving NHAI, PWD and the concerned state organizations such as the State ForestDepartment, State Pollution Control Board, Department of Fisheries etc. Village levelconsultations were held in rural, suburban and urban areas along the corridor of impact ofthe project road to inform people about the purpose and preliminary design of the project.Such consultations provided means to get the opinion of the people and their issues ofconcern. Village/local level consultations were held at selected locations. Theconsultation session are proposed to be continued during the implementation andmonitoring stages of the project.Public consultation revealed that roadside communities use the road extensively for theirrequirement. So local people in the immediate neighborhood have an interest in wideningof the road but they had some reservation in case this results in excessive dislocation ofpeople and properties. Issues like compensation, drainage problem, safety, impact onroadside vegetation, compensatory plantation and water bodies etc raised by a peopleduring consultations have been taken into consideration while devising mitigationmeasures.0.7 ANALYSIS OF ALTERNATIVESThere has been a conscious decision to stick to the existing alignment while undertakingthe proposed rehabilitation and upgradation work. To reduce damages to roadsidevegetation and to keep down the level of dislocation of people and properties the optionof semi-concentric and eccentric widening was exercised all along the alignment.Analysis of alternatives has been carried out for scenarios “with or without the project” onthe existing alignment. The “With project scenario” has been further analyzed throughDraft Environmental Impact AssessmentEs - v
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GLOSSARYEnvironmentBiosphereEco-sys
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Draft Environmental Impact Assessment Report - Meghalaya State ...

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