(See Paragraph-6) FORM 1
Note : If space provided against any parameter is inadequate, Kindly upload supporting document under 'Additional Attachments if any' at the last part of the Form1. Please note that all such Annexures must be part of single pdf document.
(I)Basic Informations S.No. Item Details
1. Name of the Project Kirthai Stage-ll HEP (930 MW)
2. Project Sector River Valley and Hydroelectric Projects
3. Location of the project District Kishtwar, J&K
4. Shape of the project land point uploaded 10 km radius topo map (Annexure - I) GPS file 5. Brief summary of project Brief Summary of Project (Annexure - II)
6. State of the project Jammu & Kashmir
Details of State of the project
S.no State Name District Name Tehsil Name
(1.) Jammu & Kashmir Kishtwar Paddar
7. Town / Village Kiddur
8. Plot/Survey/Khasra No. 52 C 3
9. S. No. in the schedule 1(c) River Valley projects
Proposed capacity/area/length/tonnage to 930 MW 10. be handled/command area/lease Underground Power House (6x140)MW area/number or wells to be drilled Dam toe Power House (2x35+2x10)MW
11. New/Expansion/Modernization New
12. Category of project i.e. 'A' or 'B' A
Does it attract the general condition? If 13. yes, please specify No
15. Does it attract the specific condition? No
Is there any litigation pending against the 16. project? No
Nearest railway station along with Udhampur 210 km 17. distance in kms.
18. Nearest airport along with distance in kms Jammu – 310 km Nearest Town/City/District Headquarters 19. along with distance in kms Kishtwar, 65 km
Details of alternative sites examined Initially three alternative dam axis were selected across the No shown on a toposheet river Chenab downstream of village Kirthai in consultation with geologists from GSI. But a high storage dam at any of these sites would have submerged Padder valley comprising of some villages and agricultural & forest lands. One more site was selected upstream of this valley, but the storage available at any site above the valley was comparatively less than that at any downstream site. In order to finalize the dam axis, expert team comprising of Engineering Geologists from GSI and Designers from CWC visited the project site in May 1989. The experts during the time of the visit observed that though a dam and power house upstream of Padder valley at Gulabgarh would in 20. itself be a feasible project, it will not fully utilize the power potential available in the reach. It was therefore suggested that Dam at Gulabgarh can be constructed as Stage I of the entire scheme and relatively lower pick up dam (100 m high) can be located downstream of the valley. This would avoid submergence of the Padder valley and would tap the balance power potential.The comparative study was made by taking into consideration all the alternatives and finally it was decided to have a storage dam at Gulabgarh with underground power house at Gulabgarh itself (Kirthai H.E. Project Stage I) and a lower dam near Silpar or Kidur with underground power house at Lidrary (Kirthai H.E. Project Stage II)
Whether part of interlinked projects? 21. No
Whether the proposal involves approval / clearance under the Forest Conservation 22. Yes, yet to be submitted Act, 1980 ? Status of Application for Forest Clearance Whether the proposal involves 23. approval/clearance under the wildlife No. (Protection)Act,1972? Whether the proposal involves 24. approval/clearance under the C.R.Z No notification,2011?
Whether there is any Government Project comes under the provisions of Annexure-D of Order/Policy relevant/relating to the site? Indus water treaty and the project area comes under 25. Forest Act
Whether there is any litigation pending 26. against the project and/or land in whichNo No the project is proposed to be set up?
27. Project Cost(in lacs) 515800 lakh
II. Activity
1. Construction, operation or decommissioning of the Project involving actions, which will cause physical changes in the locality (topography, land use, changes in water bodies, etc.)
Details there of (with approximate S.No Information/Checklist confirmation Yes/No quantities/rates, wherever possible) with source of information data
The land use of private land being used for establishing colonies shall not change as it will continue under land use class agriculture & settlement but the land use of private land coming under submergence shall change from agriculture to water body. The land use class of private land required for new road construction shall change in Permanent or temporary change in land to bult-up land use. The underground components use, land cover or topography including 1.1 Yes falling in forest area will not cause any impact on increase in intensity of land use (with the land use. Similarly, the land use of forest area respect to local land use plan) diverted for dump areas and quarry sites will not cause any impact on land use as these shall continue to be under forest land use class. However, forest land and revenue land coming in submergence shall have its land use changed permanently in water body
Clearance of existing vegetation at various Clearance of existing land, vegetation and 1.2 Yes project component sites during construction buildings? phase is envisaged.
Muck dumping sites presently under open forest 1.3 Creation of new land uses? Yes or wasteland would be used temporarily before being converted to plantations.
Pre-construction activities like Bore Hole, Drifting, geological testing as suggested by GSI Pre-construction investigations e.g. bore 1.4 Yes has been carried out. houses, soil testing?
The project shall comprise of: • 121 m high concrete gravity dam, with overall length 219.80 m at top. • 93 m long over flow section with 5 bays with radial gates(9mx12.248m). • A power intake to convey the regulated discharge through 4 number, 6.4 m diameter, intake tunnels of varying length leading to four desilting chambers. 1.5 Construction works? Yes • 4 flushing tunnels / ducts (3.6mx2.5m) • 10.5 m diameter 4.289 km long HRT • 31.6 m diameter surge shaft • Pressure shafts (3 No,5.25m diameter,827m long), • Unit penstocks to feed six number generating units (140 MW each) • Underground power house of cavity size 187.5 m X 22 m X 49.7m on the left bank of the Chenab. • 11.25 m diameter 352.5m long circular tail race tunnel • A Power intake to feed dam toe powerhouse (90MW). 1.6 Demolition works? No The project does not entail any demolition works. Besides, the structure coming under submergence. Temporary Labour sheds for Labourer at some places shall be created during construction phase, which will be demobilized before commissioning. Temporary labour camps would be required for Temporary sites used for construction works 1.7 Yes construction phase. or housing of construction workers?
Above ground buildings, structures or Above ground structures shall include project earthworks including linear structures,cut components like dam, power intake, desilting and fill or excavations and fill or excavations arrangement and surface power house (90MW) 1.8 Yes besides permanent and temporary buildings and roads. The description of such components has been provided in 1.5 Construction of Head race tunnel as water conductor system from dam to power house & Underground works including mining or 1.9 Yes underground powerhouse, besides tunneling? Desilting and flushing system.
Reclamation works would involve reclamation of quarry and muck dumping sites because of project activities which will be done on completion of civil work. Adequate provision 1.10 Reclamation works? Yes based on detailed estimate has been made for Muck Management, Restoration Plan for Quarry Sites, Landscape and Restoration Plan under EMP. 1.11 Dredging? No No dredging is involved
1.12 Offshore structures? No Not Applicable
1.13 Production and manufacturing processes? No Hydro power generation is proposed by utilizing head and the available discharge in the river
1.14 Facilities for storage of goods or materials? Yes Project is not a goods manufacturing or production unit. However, during project construction/operation, storage for materials would be needed. Facilities for treatment or disposal of solid Project process does not entail generation of solid waste or liquid effluents? or liquid waste. However, sewerage and solid waste will be generated from project colony and labour camp for which sewerage treatment plant and septic tank have been proposed respectively. Municipal Solid waste would be disposed as per 1.15 Yes MSW Rules 2016 for which Sanitation and solid waste management plan has been formulated under EMP. However, as far as disposal of muck (generated from the project components) is concerned, a separate muck management plan has been prepared under EMP The operational staff would be housed in the colonies mentioned above as upon commissioning Facilities for long term housing of of the project construction staff would be shifted 1.16 Yes operational workers? out. Suitable sewerage and solid waste disposal mechanism has been suggested for the project colony in the EMP. New approach road during construction and New road, rail or sea traffic during 1.17 Yes operation phase. construction or operation? No rail / sea traffic is involved.
New road, rail, air water borne or other No new road except realignment of existing transport infrastructure including new or Kishtwar – Gulabgarh - Sansari road in about a altered routes and stations, ports, airports stretch of 4.5km length under submergence will etc? be required. However, for transportation of 1.18 No machinery, widening and strengthening of existing road shall be required. For executing various civil works roads will be made for linking the works site to other site and to job facility areas. Closure or diversion of existing transport There would not be any closure or diversion of existing 1.19 routes or infrastructure leading to changes No roads or routes leading to any traffic diversion in traffic movements? Transmission line for evacuation of power. New New or diverted transmission lines or 1.20 Yes pipelines shall be laid for providing drinking water pipelines? supply to colonies / labour camps.
Impoundment, damming, culverting, The proposed dam shall impound water on u/s. 1.21 realignment or other changes to the Yes With the formation of the reservoir, the hydrology of watercourses or aquifers? hydrology of the River shall be affected.
1.22 Stream crossings? No No stream is proposed to be crossed by any cross- drainage work. The HRT shall be aligned with their overt well below the natural stream level near the stream crossing
River water after leaving environmental flow will be diverted through HRT for power generation. No consumptive use involved and entire diverted Abstraction or transfers of water from 1.23 Yes water will be released back into the river after ground or surface waters? powerhouse.
Changes in water bodies or the land surface Formation of reservoir will effect a change in affecting drainage or run-off? water body and the land surface. 1.24 Yes Environmental flow as per MOEF guidelines has been allowed to take care of d/s effect / change.
Transport of personnel or materials for Construction would entail, transportation of construction, operation or construction material locally and from outside. decommissioning? During construction, the resident labour from 1.25 Yes labour camps shall be daily transported to the work site and on de commissioning, the personnel shall be shifted from the project site except the persons required for operation phase Project does not involve any long terms Long-term dismantling or decommissioning 1.26 Yes dismantling of its components. However, batching or restoration works? plant, stone crushers, temporary work shops, labour sheds shall be dismantled after commissioning of the project.
Ongoing activity during decommissioning No decommissioning activity is warranted 1.27 which could have an impact on the No environment? Influx of people to an area in either About 2100 persons shall be employed during temporarily or permanently? peak construction phase. However, during 1.28 Yes operation phase only 100 to 150 technical staff/labour shall be required. 1.29 Introduction of alien species? No Only indigenous species will be planted
1.30 Loss of native species or genetic diversity? No
The aspect prescribed in the TOR have been complied. 1.31 Any other actions? No
2. Use of Natural resources for construction or operation of the Project (such as land, water, materials or energy, especially any resources which are non-renewable or in short supply):
S.No. Information/Checklist Confirmation Yes/No Details thereof (with approximate quantities/rates, wherever possible) with source of information data
2.1 Land especially undeveloped or Yes 43 ha private land agricultural land (ha)
200 KLD water will be required for drinking / domestic purpose which will be drawn from the Water (expected source & competing existing springs/local khad. The requirement of 2.2 Yes users) unit: KLD about 300 KLD of water for construction purpose shall be met from the main river as well as the seepage water from the tunnel.
2.3 Minerals (MT) No No minerals shall be used for the construction of the project except the minor minerals i.e. boulder, sand and bajri.
Approximately 20.76 lac cum and 10.38 lac cum coarse and fine aggregate respectively shall be Construction material – stone, required besides graded filter material (0.22 lac 2.4 aggregates, sand / soil (expected source – Yes cum) and impervious material i.e. clay 0.30 lac MT) cum as construction material. The requirement shall be partly met from the excavated material and from the rock-in-situ quarry sites.
The conventional use of fuel wood by the labour shall be totally banned and it will be substituted 2.5 Forests and timber (source – MT) Yes through use of LPG/ Kerosene. Timber shall be required only for construction works in buildings. Construction power (25 MW) shall be met from Energy including electricity and fuels the existing transmission network in the area. 467 2.6 (source, competing users) Unit: fuel (MT), Yes LPG cylinders (7.5 MT/month) shall be used as energy (MW) fuel in lieu of fuel wood. The demand of POL and HSD oil shall be met from outside. Any other natural resources (use Use of solar heater and light in the project area has 2.7 appropriate standard units) Yes been provided in the EMP.
3. Use, storage, transport, handling or production of substances or materials, which could be harmful to human health or the environment or raise concerns about actual or perceived risks to human health
Details thereof (with approximate S. quantities/rates, wherever possible) with Information/Checklist confirmation Yes/No No. source of information data
Explosives will be used for blasting in construction of roads, surface excavation in hard rocks as well Use of substances or materials, which are as underground works. Explosive shall be stored hazardous (as per MSIHC rules) to human 3.1 Yes in properly located magazines and shall be health or the environment (flora, fauna, transported through explosive van. All and water supplies precautions as laid down under relevant rules shall be followed
Changes in occurrence of disease or affect There is a slight possibility of increase in some disease vectors (e.g. insect or water borne vector population due to impoundment of water. 3.2 diseases) Yes However, owing to low temperature and high altitude of the project area, the possibility of occurrence of such disease is very remote.
The project will open new vista of employment and increase business which will lead to better living conditions. Besides this, it is proposed to spend 0.5% cost of the project for local area development works through LADA. There will be Affect the welfare of people e.g. by 3.3 Yes better living conditions due to opening of changing living conditions? employment in the area. Project will uplift the economy of the local people by direct and indirect employment opportunity. Besides this the PAF shall be properly compensated and rehabilitated as per RFCTLARRA, 2013
Vulnerable groups of people who could be No hospital, school exists nearby the project area 3.4 affected by the project e.g. hospital No and the nearest PHC is at Atholi. patients, children, the elderly etc.
3.5 Any other causes No None
3 Production of solid wastes during construction or operation or decommissioning (MT/month)
S.No. Information/Checklist confirmation Yes / Details thereof (with approximate No quantities/rates, wherever possible) with source of information data 4.1 Spoil, overburden or mine wastes Yes Surface as well as underground excavation shall result in generation of excavated muck and overburden waste. Part of the excavated material shall be consumed as aggregate material as well as back fill material and the rest shall be disposed properly at designated muck sites located away from the water bodies.
Solid municipal waste shall be generated from project colony and labour camps. The collected Municipal waste (domestic and or bio-degradable waste will be disposed at suitable 4.2 Yes commercial wastes) landfill sites, organic waste will be suitably processed to for compost while the non-bio- degradable waste shall be incinerated. Commercial waste shall be stored and periodically disposed by auction.
Hazardous wastes (as per Hazardous No hazardous waste will be produced 4.3 Waste Management Rules) No
4.4 Other industrial process wastes No No other industrial process wastes will be generated during construction and operational stages. 4.5 Surplus product No In view of HEP, no surplus product will be produced. Effluent is not generated in hydro-electric generation. However, liquid effluent shall be generated from the project colonies and labour Sewage sludge or other sludge from 4.6 Yes camps which will be suitably processed through STP effluent treatment and septic tanks/soak pits respectively. The liquid effluent after treatment shall be discharged into nearby stream. About 30.26 lakh cum muck shall be generated during construction phase of which approximately 70% shall be consumed and the rest will be suitably disposed at suitable sites. The waste like 4.7 Construction or demolition wastes Yes the roofing material, wooden sections and panel of the doors shall be retrieved and the balance in the form of rubbles of the stone masonry work or the CC blocks of the walling shall be used wherever needed by the project authority. 4.8 Redundant machinery or equipment Yes The work shall be carried out contractually, therefore, the construction agency shall remove from the site all the redundant plant and equipment from the site after completion of the work. 4.9 Contaminated soils or other materials No No contamination of the soil or other materials is envisaged during construction or in operation phase. The POL shall be stored in proper containers and inside sheds / stores provided with suitable flooring and equipped with fire protection arrangements. 4.10 Agricultural wastes No No agriculture waste is produced during hydro- electric generation. 4.11 Other solid wastes No -
5. Release of pollutants or any hazardous, toxic or noxious substances to air(Kg/hr)
Information/Checklist confirmation Yes/ Details thereof (with approximate S.No. No quantities/rates, wherever possible) with source of information data Emissions from combustion of fossil fuels Yes There will be emissions from use of vehicles and from stationary or mobile sources construction equipment which will be limited to 5.1 project site only. The maximum incremental GLC in respect of PM10 & NOx was 9.9 ug/cum and 0.14 ug/cum respectively.
5.2 Emissions from production processes No Hydro power generation process does not lead to any emission. Emissions from materials handling Yes The use of transport vehicle for carriage of material 5.3 including storage or transport shall lead to emission. However, there will be no emission during material handling except for the dust pollutants during handling of cement bags, which will be controlled.
Yes There will be emissions from use of vehicles and construction equipment which will be limited to project site. The maximum GLC due to excavation Emissions from construction activities 5.4 activity and crushing of aggregates was found to be including plant and equipment 15.07 ug/cum inside dam complex and there was insignificant increase 0.08 ug/cum in the nearby village.
Dust or odours from handling of materials Yes Dust/odours may be produced from handling of 5.5 including construction materials, sewage material, municipal waste and sewage waste. and waste
5.6 Emissions from incineration of waste Yes Emission shall be produced during incineration of the non-bio-degradable solid waste at the incinerator site. Emissions from burning of waste in open No No burning of material is proposed at any site other 5.7 air (e.g. slash materials, construction than the incinerator site. debris) 5.8 Emissions from any other sources No -
6. Generation of Noise and Vibration, and Emissions of Light and Heat:
Yes/No Details thereof (with approximate S.No. Information/Checklist confirmation quantities/rates, wherever possible) with source of information data
Yes Noise and Vibrations will be generated during operation of drilling equipment and blasting and other construction equipment. During operation phase, there shall be high noise levels at the turbine From operation of equipment e.g. 6.1 and generator floors. However, the impact shall be engines, ventilation plant, crushers on the workers who will be engaged in shifts. There shall be no impact to human/animal population in areas outside the power house main access tunnel (MAT). 6.2 From industrial or similar processes No No industrial process is involved in hydro-electric generation. Yes Noise and Vibrations will be generated during 6.3 From construction or demolition operation of drilling equipment and blasting and other construction equipment.
Yes There shall be setting up of ground vibrations and instantaneous increase in noise level (air overpressure) during blasting. The noise modeling has shown that the noise level of 91 dB(A) at the 6.4 From blasting or piling dam site gets highly attenuated to 40 dB(A) about 1200m from it. The value of PPV was assessed as 0.70 mm / sec at about 500 m from the blasting site and is within the prescribed limit by DGMS. There shall be no piling activity during construction phase. Yes The movement of tippers for transportation of muck and transit concrete mixtures during construction shall cause noise and vibration. During O&M phase 6.5 From construction or operational traffic there shall be no increase in noise and vibration level as the only operational traffic shall be the staff bus deployed for movement of shift workers and also the inspection vehicles. 6.6 From lighting or cooling systems No No heat and light emissions except during welding operation are generated during the construction phase of a hydro-electric project. However, some heat may be generated inside the power house for which proper cooling system shall be provided. 6.7 From any other sources Yes Low intensity heat generation are anticipated in the transformer cavern of the power house for which proper air-conditioning and cooling system shall be devised.
7. Risks of contamination of land or water from releases of pollutants into the ground or into sewers, surface waters, groundwater, coastal waters or the sea:
Information/Checklist confirmation Yes/No Details thereof (with approximate S.No. quantities/rates, wherever possible) with source of information data From handling, storage, use or spillage of No Handling, storage or use of explosive will not hazardous materials contaminate land / water. The oil spillage from the 7.1 POL shall be collected in the settling tank and the oil separated before disposal of the liquid. From discharge of sewage or other No The liquid effluent shall be generated from the effluents to water or the land (expected project colonies and labour camps which will be 7.2 mode and place of discharge) suitably processed through STP and septic tanks/soak pits respectively. The liquid effluent after treatment shall be discharged into nearby khad. Yes Excavation in the hard rock by drilling and blasting By deposition of pollutants emitted to air and the running of excavators and loaders shall 7.3 into the land or into water cause fugitive dust as well as gaseous emissions which get deposited on land and water.
7.4 From any other sources No -
Is there a risk of long term buildup of No No incidence of long term builds up of pollutants is pollutants in the environment from these expected as the project is likely to be completed sources? within a time frame of 60 months including the pre- 7.5 construction activities. Moreover, the project area is in remote location and due to openness of the area, the pollutant load is cleared on daily basis.
8. Risk of accidents during construction or operation of the Project, which could affect human health or the environment
Information/Checklist confirmation Yes/No Details thereof (with approximate S.No. quantities/rates, wherever possible) with source of information data Yes Since explosives are to be used for blasting during tunneling as well as the surface excavation in hard From explosions, spillages, fires etc from rocks, the attendant risk is always there. To avoid 8.1 storage, handling, use or production of accident due to handling of explosives, proper hazardous substances precautionary and safety measures as suggested in relevant Act and codes shall be adopted. 8.2 From any other causes Yes During tunneling, due to formation of chimney, overhead rock falls cannot be ruled out. Yes The topography of the lease area is such that it Could the project be affected by natural cannot be affected due to disaster in the form of disasters causing environmental damage flood and land slide. The lease area lies within 8.3 Seismic Zone-IV as per seismic zoning map of India (e.g. floods, earthquakes, landslides, (IS: 1893: 2002). cloudburst etc)?
9. Factors which should be considered (such as consequential development) which could lead to environmental effects or the potential for cumulative impacts with other existing or planned activities in the locality
Information/Checklist confirmation Yes/No S. Details thereof (with approximate No. quantities/rates, wherever possible) with source of information data Lead to development of supporting utilities, ancillary development or development stimulated by the project which could have impact on the environment e.g.: Yes Road from Kishtwar-Gulabgarh on which dam • Supporting infrastructure (roads, site is located shall involve widening and 9.1 power supply,waste or waste water strengthening. treatment, etc.) No • Housing development No • extractive industries No • supply No industries • Other Lead to after-use of the site, which could have No None of the sites has any potential for after use 9.2 an impact on the environment except the muck disposal site which will be provided with vegetal cover. 9.3 Set a precedent for later developments No -
Have cumulative effects due to proximity to Yes The tail race of Kirthai-I HEP (390 MW) is about other existing or planned projects with similar 2.5 km u/s of the tip of the reservoir of Kirthai – II effects HEP (930 MW). The diversion structure of 9.4 proposed Kiru HEP (624 MW) is located about 1km d/s of the TRC of Kirthai – II HEP. Thus, the free flow stretch of the river in both cases is more than 1km.
(III) Environmental Sensitivity
Areas Name / Aerial distance (within S.No. Identity 15km.) Proposed project location boundary
Areas protected under international Kishtwar (40 km) conventions, national or local legislation for National 1 their ecological, landscape, cultural or other Park related value Areas which are important or sensitive for None The project area lies in mountainous terrain of ecological reasons - Wetlands, watercourses or lesser Himalayas while the catchment lies in 2 other water bodies, coastal zone, biospheres, Greater Himalayas. There are no sensitive mountains, forests areas like wetland, coastal zone and biosphere. Areas used by protected, important or None None sensitive species of flora or fauna for 3 breeding, nesting, foraging, resting, over wintering, migration 4 Inland, coastal, marine or underground waters None Due to topography of the area, there are no inland, coastal and marine water. 5 State, National boundaries No Neither International Boundary with China nor the nearest State boundary with Himachal Pradesh lies within 15km of the project site. Routes or facilities used by the public for Kishtwar The present route is being used access to recreation or other tourist, pilgrim Gulabgarh by local populace and the route 6 areas road also, leads to pilgrim area of Macheal Yatra.
7 Defence installations No There are no defence installations in or around the project area.
8 Densely populated or built-up area None The project area is scarcely populated or built-up area Areas occupied by sensitive man-made land None No such facility or sensitive 9 uses (hospitals, schools, places of worship, area falls in or around project community facilities) area.
Areas containing important, high quality or None Project area does not contain scarce resources. (ground water resources, any important, high quality or 10 surface scarce resource. resources, forestry, agriculture, fisheries, tourism, minerals) Areas already subjected to pollution or None 11 environmental damage. (those where existing legal environmental standards are exceeded)
Areas susceptible to natural hazard which Yes There is a possibility of cloud burst which can could cause the project to present result in enormous discharge leading to environmental problems (earthquakes, barrage failure. Besides this, the project lies in 12 subsidence, landslides, erosion, flooding or seismic zone – IV, Earthquake of high extreme or adverse climatic conditions) similar intensity cannot be ruled out effects (IV) PROPOSED TERMS OF REFERENCE FOR EIA STUDIES
1 Uploaded Proposed TOR File Uploaded earlier approved ToR
Uploaded Covering Letter 2 Uploaded scanned copy of covering letter
3 Uploaded Pre-Feasibility report(PFR) Uploaded DPR
4 Uploaded additional attachments (only single pdf file) Uploaded copy of Form-1
(V) Undertaking
The aforesaid application and documents furnished here with are true to my knowledge
Annexure – I : 10 km radius topo map
Annexure II : Brief Summary of Project
Kirthai HEP Stage – II (930 MW): An Overview
The need for the Kirthai HEP, Stage-II, installed capacity 930 MW, in the lower reach of the Chenab Basin, which stores 10360 MW power potential being 85.7% of the total hydropower potential of the state, has therefore been considered in context of power shortage in the Northern region in general and in the country as whole. The project has been conceptualized as a run-of-the-river under the ambitions cascading development programme of hydropower in the Chenab basin
It envisages utilization of river water through average net head of 225.1 m for generation of annual energy of 3159.72 MU at 90% dependability, through an underground powerhouse (6X140MW) to be located on the left bank of the Chenab near Lidrara Nalla and a dam toe power house with average net head of 99.95m for generation of annual energy of 307.19 MU, thereby resulting into an annual generation of 3466.19 MU. The project comprises of 121 m high concrete gravity dam (from the river bed level), with overall length 219.80 m at top i.e. El 1766 masl and consisting of 93 m long over flow section. The sluice spillway, with 5 bays fitted with radial gates(9mx12.248m), with crest at El 1712.5 masl, has been designed to pass the PMF of 9660 cumec. A power intake with invert level at El 1731.80 masl shall convey the regulated discharge through 4 number, 6.4 m diameter, intake tunnels of varying length leading to four desilting chambers (440mx19mx24.87m) which in turn are joined to four flushing tunnels/ducts (3.6mx2.5m) to escape silt laden water into the river. Appropriate HRT manifold shall be provided from which 10.5 m diameter 4.289 km long HRT, with invert level at the start El 1725.00 masl, shall take off to convey 413.47 cumec discharge to 31.6 m diameter surge shaft connected at its lower end to concrete lined steel liner pressure shafts (3 No,5.25m diameter,827m long), each further bifurcating to unit penstocks to feed six number generating units of 140 MW capacity each under a net rated head of 225.1 m and housed in an underground power house of cavity size 187.5 m X 22 m X 49.7m on the left bank of the Chenab. The discharge through draft tubes shall be led to the river through 11.25 m diameter352.5m long circular tunnel with average outfall at El 1530 masl For dam toe powerhouse a Power intake shall be provided in the dam block-9 to exploit the environmental flow release of 99.71 cumec at a net head of 99.95 m at the dam toe power house. The water from the powerhouse shall be conveyed through 51m longTRC. The reservoir FRL has been fixed at El 1764 masl from the consideration of submergence alone. The Minimum Draw Down Level (MDDL) has been estimated at 1750.75 m, from consideration of the live storage of 17 MCM, available between the proposed FRL and MDDL, to be adequate for peaking operation of the station for about 44 hours in a week with flows corresponding to the minimum mean discharge (MMD) and releases within the daily volume restrictions of 50% to 130% of the corresponding daily inflows permissible within the scope of the Indus Water Treaty. The average load factor of the operation of the main power house during lean period would be about 10.1%% ensuring peak operation of the power house for about 2.4 hours daily. Annual Plant Load factor of the main station would be about 43.00%. The firm power from the project shall be118.8 MW. The power generated will be helpful in mitigation of the power shortage in Northern Grid. The project, proposed to be completed in five years’ time frame, shall require 1200 persons including professionals, technical, skilled and unskilled labours during the peak construction stage.
The general layout map is given below:
General Layout Plan of the Project
No.J-1 201 1 I 612012 -lA-l Ministry of Environment & Forests Government of lndia (lA-l Division) Paryavan Bhavan CGO.Complex, Lodi Road New Dethi - 110 003
Date: 5th June, 2013
To,
The Chief Engineer Cl &DWing,Jammu J&D Power development Corporation Khuttar Market Sec'3 Extion Trikuta Nagar Jammu - 180 012
Subject: Kirthai Stage-ll HEP (930 MW) Project in Kishtwar District of Jammu & Kashmir U/ttls. J&K Power Development Corporation - for Scoping/TOR - regarding. Sir, This is with reference to your letter no. Cl&D/571-1117165'79 dated 6.2.2012 and 9.1.2013 on the above mentioned subject. Z. The proposal was eartier submitted for scoping ctearance for 990 MW. The ftow series have been approved by CWC on 1.9.2011. The flow series corresponding to monsoon flow in 90/. dependab[e year ranged from 673.7 to 1038.8 m3/sec, and a design discharge of 512 m3/sec'with bifuication of 413.47 m3/sec for 840 MW (6x140 MW) main undergiound powerhouse and 99.17 m3/sec for 90 MW dam'toe powerhouse has been adopt6d. 20% retease in lean season ftow ranging from 50 to 70 cumec was reported adequate to meet the downstream retease. As a resutt of downward revision of capacity from 990 MW to 930 MW, there witt be no submergence of Paddar Vattey. The project proposal was considered by Environment Appraisat Committee (EAC) for,River Vattey and hydroetectric Projects in iis meetings hetd on 30-31't March, 2012 &.1-2nd February, 2013- The comments ani observations of EAC on the proposal may be seen in the minutes of the meetings, which are avaitabte on the web-site of this Ministry. 3. tt is noted that the project envisages construction of a 121 m high concrete gravity dam across river (165 m from the deepest foundation levet) Chenab to generate 930 MW of hydropower. The catchment area of the project is 9987 Sq. Km. Totat tand requirement is about'416.25 ha, out of which 227.25 ha is forest [and, 40 ha is government land and 149 ha is private tand. Totat submergence area is about 331 ha. (Of which 155 ha isforest tand). An unflerground powerhouse is proposed with 6 units of 140 MW each + 90 MW (2$b MW ; 1x10 MW) auxitiary dam-toe powerhouse facititate to release of environmental ftows is atso proposed. About 15 famities witl be futty affected due to this project. Tota[ cost of the project is about Rs. 6087.48 Crores. 4. Based on recommendations of the EAC, the Ministry of Environment & Forests hereby accords ctearance for pre-construction activities at the proposed site as per the provisions of 'the Environmental lmpact Assessment Notification, 2006 and subsequent amendment, 2009 atong with the fottowing Terms of Reference {TOR) for preparation of EIA/EMP report. The EIA/EMP report shoutd contain the information in accordance with provisions & stiputations as given in the Annexure-1. White preparing the EIA/EMP report prevaiting norms shoutd be foltowed with respect to environmentat ftows, muck disposal sites and other parameters.
The Committee expressed its satisfaction over reduction in capacity from 990 MW to 930 MW as with this; land requirements and submergence area have come down, thereby saving Peddar vatley. The committee thus, agreed to the downward revision of the capacity of project to 930 MW subject to the fottowing conditions/additionat TORs: . Keeping in view the proximity of protected forest [and, the Environmental Sensitivity is to be properly assessed and reftected in the EIA o The EIA/EMP shoutd atso inctude the foltowing: (i) Enumeration of atl ptant species betonging to atl groups, especiatty trees - number of trees of eacli species and their volume in the submergence area; (ii) Studies on Economic vatuation and Ecosystem Services will be carried out on the forest tost (iii) EMP: For Compensatory afforestation tree species affected in the forest witt be utitized for ptanting.
. Land cover and land-use pattern shoutd be given with Fatse Cotour Composition (FCC) o Flora of the Project Area: "29 taxa of flowering plants" appears to very [ow. Detaits about Gymnosperms, Pteridophytes, shrubs and herbs are-to be presented in the EIA report. o The sampting locations are to be given. . Sampting tocations for ftorat/faunal studies appeared to be inadequate. Champion & Seth (1968) shoutd be fottowed for forest types o Environmental Evaluation: detaits of the environmentat evatuation should be given and detaits of forest land/flora and fauna have to be presented in the EIA report o Proposed Engineering and Biotogical measures: Use Coir mats - geotextiles on stopes to prevent soil erosion and for raising plantations. . A study on environmentat ftow retease needs to be inctuded. Draw a separate cotumn giving environmental ftow, spitt ftow, turbine ftow and ftow through the dam-toe powerhouse. Check the total retease d/s dam as per the prescribed norms. ln any case retease of minimum environmental ftow must mimic the pre-dam flow pattern of the river for sustaining the aquatic bio-diversity together with downstream user need and accordingty, water withdrawal for power generation is to be regutated. Minimum environmental ftow retease would be 20Yo of average of four tean months of lean period and 20-30% of flows during non-tean and non-monsoon period corresponding to 90% dependabte year. The cumulative environmental ftow reteases inctuding spittage during the monsoon period shoutd be about 30% of the cumulative inflow during the monsoon periods corresponding to90/o dependabte year. . The estimated PMF shown as 8140 cumec, whereas, the peak ftood hydrograph shows 7440 cumce. This needs to be exptained/ reconciled in the EIA report. 5. The Consuttant engaged for preparation of EIA/EMP report has to be registered with Quatity Councit of lndia (QCI)/NABET under the scheme of Accreditation & Registration of MoEF. This is a pre'requisite. 6. Consultants shatt inctude a "Certificate" in EIA/EMP report regarding portion of EIA/EMP prepared by them and data provided by other organization(s)/ laboratories inctuding status of approval of such laboratories. 7. The draft EIA/EMP report prepared as per the above Terms of References shoutd be submitted to the State Potlution Control Board / Committee concerned for conducting Pubtic Hearing /Consuttation as per the provisions stiputated in EIA Notification of 2006. 8. Att issues discussed in the Pubtic Hearing/Consuttations shoutd be addressed and incorporated in the EIA/EMP Report. Final EIA/EMP report shoutd be submitted to the Ministry for Environmental Ctearance onty after incorporating these issues. 9. The TOR wi[[ remain vatid for a period of 2 years from the date of issue of this tetter for submission of EIA/EMP report atong with pubtic consuttation. 10. ln casq of any change in the Scope of the Project such as capacity enhancement, shifting of dam site/powerhouse and change in submergence etc., fresh scoping ctearance has to be obtained by the project proponent. 11. lnformation pertaining to Corporate Environmental Responsibitity and Environmentat Poticy shatt be provided in the EIA/EMP Report as per this Ministry's circutar dated 19.5.2012. 12. This has approval of the Competent Authority.
(B. B. Barman) Director Copy to: 1. The Secretary. Ministry of Power, Shram Shakti, Bhawan, Rafi Marg, New Dethi-1 2. The Adviser (Fower), Ptanning Commission, Yojna Bhawan, New Dethi'110 001. 3. The Principal Secretary (MPP & Power), Government of Jammu & Kashmir, Srinagar. 4. The Secretary, Department bf Environment, Government of Jammu & Kashmir, Srinagar. 5. Chief Engineer, Project Appraisat Directorate, Central Etectricityr Authority, Sewa Bhawan, R.K. Puram, New Dethi- 110 066. 6. The Regional Office, Ministry of Environment & Forest, Chandigarh. 7. The Member Secretary, Jammu & Kashmir State Poltution Control Board, Parivesh Bhavan, Gtadni, Transport Nagar, Narwat, Jammu'180 006. 8. NIC Cett - with a request to uptoad in MoEF's website 9. PS to JS (AT)/Director (lA-l)/PVSRao 10 Guard fite. (8. B.Barman) Director n, I ' : Annexure-l
TERMS OT REI'ERENCE FOR CONDUCTING EIYVIRONMENT IMPACT ASSESSMENT STUDY tr'OR 6A' CATEGORY HYDRO POWER PROJECTS AND TNTORMAiTON TO BE INCLUDED IN EIA/EMP REPORT
(1) Scoue of EIA Studies
environmental concerns and focus on potential The EIA Report should identi$/ the relevant ----- impacts that may change due to the construction of proposed project. Based on the baseline data collected for tluee (3) seasons (Pre-monsoon, Monsoon and Winter seasons), the status of the existing environment in the area and capacity to bear the impact'on this should be analysed. Based on this analysis, the mitigation measures for minimizing the impact shall be suggested in the EIA/EMP study. - Q) Details of the ProiecJ and Site
? General introduction about the proposed project. a Details of project and site giving L-sections of all U/S and D/S projects of Chenab River with atl relevant maps and figures. Connect such information as to establish the total length of interferenci of Natural River, the total length of tunneling of the river and the committed unresfricted release from the site of diversion into the main river. A map of boundary of the project site'giving details of protected areas in the vicinity.of project location. Looation details on a map of the project area with contours indicating main project features. The project layout shall be superimposed on a. contour map of ground elevation showing main project features (viz. location of dam, Head works, main cana1, branch canals, quarrying etc.) shall be depicted in a scaled map. Layout details and map of the project along with contours with projgct components clearly marked with proper scale maps of at least a l:50,000 scale and printed at least on A3 scale for clarity. Existence of National Park, Sanctuary, Biosphere Reserve etc. in the study area, if any, should be detailed and presented on a map with distinct distances from the project components. j' Drainage pattern and map of the river catchment up to the proposed project site. o Delineation of critically degraded areas inthe directly draining catchment on the basis of silt Yield lndex as per the methodology of All India Soil and Land Use Survey of India. o Soil characteristics and map of the project area. o Geological and seismo-tectonic details and maps of the area swounding the proposed project site showing location of dam site and powerhouse site. . Rernote Sensing studies, interpretation of *t ttit imagery, topographic sheets along with ground verification shall be used to develop the land use/land cover pattem of the study,*ing overlaying mapping techniques viz. Geographic Information System (GIS), False Color composite (FCC) generated from satellite data of project area. o Land details including forests, private and other land. o Demarcation of snow fed and rain fed areas for a realistic estimate of *re water availability o Different riverine habitats like rapids, poolsn side pools and, variations in the river substaturn bedrocks, rocks, boulbers, - sand/silt or clay etc. need to be covered under the study.
To know the present status of environment in the area" baseline data with respect to environmental components air, water, noise, soil, land;qiiJ"gy-iaii"ai".*it-ifi;;;I faqna), wildlife, socio-economic status etc.-should be collected-witl, io f* radius of the *Tn components of the project/site i.e. dam site ani d*"iirr;;;r. The air quality and noise are to be monitored at such ^r"rir"r*r"iJr-v-& locations which are ecologically more in the study area. ::*itive The baseline studies should be,collected for 3 sgasons (pre- Monsoon, Monsoon and Post Monsoon seasons). rrr" stoay;;;-;ff;,"*r?rr".i,r*
o Catchment area up-to the dam site. o Submergence Area area direct impryt-area 'Project 91th" should comprise of area falling within l0 km radius from the periphery of rmr*oir, land coming *d;; submergence and *;;.;;;#;;' dam upto the point where Tail Race Tunnel (rnD meets th;;.'-:-- o Downstream upto.10 km from tip of Tail Race Tunner (TRT). (4) Details of the Methodolow
The methodology followed for collection of base line data along with details of number of samples and their locations in the map should be included, Study-area rfroufO be demarcated properly on tlie appropriate scale map. sampling sites shoula u. aepi.teiJoffiffi;;; parameter d,l, For forest ry9qer -legends. classification, ctrarriion and S"A frq6s) classification should be followed.
(5) Methodolow for collection of Biodiversitv Data - The number of sampling locations should be adequate to get a reasonable idea of the diversity and other attributes of flora and fauna. ftre'guiOing tqav (larger rd".6ffii;il1;;,,2*; tt area area should have larger numbEr of sampling tocatioiJ) i,irjT#r;;i diversity at the location, as known from sec,6ndury ro*".s (b"g. ealtern ii*auy* and low altitude sites should have a larger number of sampiing roruui"i-"*ine-il-tieilriaiilri,U;t' - The entire area should be divided in grids of 5km X 5km preferuuty on a GIS-nafii;;; domain. There afrei zsw of the grids should be iandornly selected zu r'*rpfinetri^]rr"rr be in the directly affected area (gnds- including-project components r"or, * i.re*uii]rrrr; powerhouse, tunnel, canal etc.) arra ure remuinlng fi tilr.j;i;;;;;Gr* of influence in 10 km radius form project components). At srich chosen location, th";;il;r#;;; sampling units (e.g. quadrats in case of flora/ransects in;;;i6;tffi;;;;;id;;; species area curves and the details of !re.sag9 @raphs and ru*rruti* nu*Ler of species in a tabulated form) should be provided i.n the ereieiort. S;;;fth; ;;;;; ,lr;;-ds*;;; not be completely.overlapping with the study *.u uo*a*i"r. E;;;r-A;;;;ffiJE counted and consid:t tol seiecting 9 25Yo of ihegrids. rrr. r-*u., may oome out as a decimal_number (i.e. it has an integral and a fractionjprrtl"i'-*iOr;;6, *fri;f,,h;"J; "rirv.j be rounded to the next whole numbei. - The conventional sampling is likely to miss-the presence of rare, enoangered (R.E'T.) and threatened species since they often occur in low densities and d d; ;if.*ri-rp;;;; ( dr
abggt the of such species usually secretive in behaviour. Rgaching the conclusion _absence in the stgdy area based on such *"thodology is misleading. trt is very important to Jb.ir**t tfr" rt"t6 of such species owing to tireir high conservation value. Hence likely pid;oiiort, species shor,rl'rl be ascertained fr_om seoondarv sources by a p1op9r literature 'r*ry for the said area including referring to field guidgs which are.now available for many t*ona*i. grorpr in India. Bven titerattne tom studies/surveys h,9. larger landscapes which include the study area for the concemed project must be relferred to siRce most qu9{i9na species from adjoining iatchments is likely to be present in the catchments in $ possible R.E.T. 6ct suctr literature fofo the entire state can be referred to. Onoe a listing of t.-'r rp*i6 iorm the said area is developed, species specific methodologies should be adopted to ;;.d; flr;ir'pr.rro.. in the study area wtrictr iould be far more conclusive as.compared to the conventional sampling. If the need be, modern methods like camera ilapping can b9 resorted to, particulanf foi areas in the eastern Himalayas and fo1 secretive/noctumal species. A ietraited listiiry of the literature referred to, for developing lists of R.E.T. species ,i.ofA be providea in ttrJgtA reports..
. The R.E.T. species rdferred to in this point should include species listed in Schedule I and II (BSI, I ;iyiiAi.fe furotection) Act, 1972 and those listed in the red data books ZSI and IUCN). '
(6) Comnonents of the EIA Stirdv Various aspects to be studied and provided in the EIAIEMP report are zls follows: A. Physical and Chemical Environment .'Geological&GeophysicalAspectsandSeismo-Tectonics:
o Physipal geography, Topography, Regional Geological aspects and structure of the Catchment. o Tectonics, seismicrry and history of past earttrquakes in the area. A site specific
earthquake design shall be sent for approval of the NCSDP (N{ional csmmittee of Seismic Design Parameters, Cental water commission, New Delhi for large dams. o Landslide zone or area prone to landslide existing in the study area should be examined. : . Presence of important economic mineral deposit, if any. Justification for location & execution of the project in relation to structural components (dam height). . of project on geological environment. fmpact Meteorolory; Air and Noise! o Meteorology (viz. Temperature, Relative humidity, wind speed/direction etc.) to be collected fio* o"*"st IMD station. .. Ambient Air Quality with parameters viz. Suspended Particulate Matter (SPM), Respirable Suspinded Particul4te Matter (RSPM) i.e. suspended particulate materials <10 microns, Sulphur Dioxide (SO, and Oxides of Nitogen (NOx) in the study area at 6locatiqns. . f*irting levels and traffic deniity in the study arca at6 locations Soil Characteristics"oir. o soil classification, physic4 p.*qr.t:rs (viz., texture, porosity, bulk densiry and ::g^P.tgng capacity) and chemi.d la'#t (yi;.'ii,;il;hfi'.onductivity, magnesiumr calcium, total alkalinity, chlorides, ''ro&ror, -nfid;;;;ijiiiry, potassium, r*U"i, available potassium, available phosphorur, "rgr*ir aAR, etc.) i6
Remofe sensing and GIS Studies t Generation of thematic mlps viz., slope map, drainage frop, soil map, land use and ap, eto. Based on these, trro*uti, *up;;;.*;i;r"t iriiv *+-ri""ri De prepaxed Water Quatity
o w-ater quality for both surface water.and ground ;;t"r iU physical parameters (pH, temperature, erectricar conductivity, (ii) chemic.l"i pararriil;(Afifit, Hardness, pOa,_.CI,'3O+,I5s)l BOD, COD, NO2, iii Ca, Mg, Sifioa, Oif'[Gre;1, phe.aolic K -Bril;;lU; corirpounds, residual sojium r*ug*irl Gtii g"rPI: cotifoun) ;.;;;, - Tgf and (1v) Heavy Metals (pb, is,'n& ca, Crfitotur cq cu,
o Delineation of sub and micro-watersheds, their locations and extent based on the Alll India Soil *t!q9 Uje S,rvey o.f rn&a telSrUSl O"p"*.i;;sffiffi; Govemment of India. Erosion levels in eacir *ioo-#atersii"o*Jft;tild;ir-'v"'!r*EYu vr micro-watershed through silt yield ford;(su) *.rrr.a Alsius: "f Water Enyironment & Hydrolory Hy'dro-Meteorology ' ofge project viz..precipitation (snowfall, rainfaU), temperature, relative humidity, etc. Hydro-meteoroligi.ur rtuo.r'tr il;;i;#;'areu sr,oura ue along-with real time telemetry and data *dritio" fgl}-Pd il,.* l"r inflows : water ' [ff:f,il?*n*o availability for the project,- sedimentationrate, etc. o Basin characteristics : o CatasJrophic events like o cloud bursts and flash floods, if any, should be documented. For estimation of Sedimentation Rate, direct sampling of iu.r no;is-rfir'd.;; {d"q the_EIA studv, The study.rlorld b";;;;tJ il*#t;;;ffi: o up a G&D monitoring station and a few forcol1ectingdata.dtrringtheinvestigation.o-'o-,--,-_-.-let rain i.g. r",ions in the catchment area o Flow series, l'0 daily withgoyo,T5% and50% dependabre years discharges o Information on the lO-daily flow basis for th9 ed per cent dependable a" no* iniercepted at the dam, i** theho* ai*rte;i; til;H;; ior* and the ,pr11 the environmental #ffii;; flow and additional flow towards downstream of6;-d*, ilth; o The minimum pnvironmental flow shall be2}Yoof the flow of four conseoutive lean l months of 90Yo yeag 30yo -dependabre ;r;-rrg, monsoon flow. The fl;; fb, remaining months shall be in between"ith; 2o-30yo, i.p."a"g ;;- th. ;;;;;;;11il yelireaents. A site specific study shall be currieJ orffi;;;pr* Jr**i'*ior. ' Pdplogical studies/data asi approved by cwc shall be utlir.j in iii.-inrpu*tion of , EIA/EMp reporr. Actuar hydrological annual yi;il;;), d; b, ;i;;ii rriiliii."' .it .li/a \." r ltt1 rl + ,,i . 1 !. 'i o Sedimentaiion data available with CWC may be used to find out the loss in storage over the years. o A minimum'of I km distance from the tip of the reservoir to the tail race tunnel should be maintained between upsteam and downsteam projects. C Biological Environment Besides primqfy studies, review of secondary datalliterature published for project area on flora & fauna including RET species shall be reported in EIA/EMP repofi. .l Flora
o Characterization of forest types (as per Champion and Seth method) in the study area and extent of each forest lype as per the Forest Working Plan. o Dooumentation of all plant species i.e. Angiosperm, Gymnospbrm, Pteriodophytes,
Bryophytes (all groups). , . General u.g.tutitn profile and floral diversity oovering all groups of flora including lichens and orchids. A species wise list may be provided. o Assessment of plant species with respect to dominance, densrty; frequency, abundance, diversity index, similarity index, importance value index (IVI) , Shannon Weiner index etc. of the species to be provided. Methodology used for ealculating vanous diversity indices along with details of locations if quadrates, size oi quadrates etc. to be reported within the study area in different ecosystems. . Existence of National park, Sanctuary, Biosphere Reserve etc in the study area, if any, should be detailed o F.conomically important species like medicinal plants, timber, fuel wood etc. . Details of endemic species found in the project area. . Flora under RET categories should be documented using Intemational Union for the Conservation of Nature and Natural Resources (IUCN) criteria and Botanioal Survey of India's Red Data list along-with economic significance. Species diversity for RET species should be given; "r*L . Cropping pattern and Horticultural Practices in the study area. i Fauna:
o Fauna study and inventorisation should be carried out for all groups of animals in the study area. Their pre:sent status atongwith Schedule'of the species. '1 . Documentation of fauna plankton (phyto and zooplankton), periphyton, benthos and
o lnformation (authenticated) on Avi-fauna and wildlife in the study area. o status'of avifauna their residenu migratory/ passage migrants etc. o Documentation of butterflies, if any, found in the area. o Details of endemic species found in the project area. o RET species-voucher specimens should be collected along-with GPS readings to facilitate rehabilitation. RET faunal species to be classified as per IUCN Redbata list and as per different schedule of Indian Wildlife (Protection) Act,1972. o Existence of barriers and corridors, iiany, for wild.animals. o Compensatory afforestation to'compenrut. tlr" green belt area that will be removed, ' ifany, as part of the proposed project development and loss of biodiversity. . Ciillection of primary data on agricultural activity, crop and their productivity and inigation facilities components. o For categoization of sub-catchment into various erosion ,classes and for the oonsequent CAT plan, the entire catchment (Indiarr Portion) is to be considered and not only the directly the draining catchment Aquatic Ecolory
.invertebrates, zooplankton,
o Fish and fisheries, their migration and breeding grounds. o Fish diversrty composition and maximum length & *eight of' the measured populations to be studies for estimation of environmental flow; , o Conservation status of aquatic fauna. o Sampling for aquatic ecology and fisheries and fisheries must be conducted during three seasons - Pre-monsoon (summer), monsoon and winter. Sizes (engh & weight) of important fish species need'io be collected and Ur.rOiog=*i ffiir;
E Socio-Economic
-' Collection of baseline data on human settlements, health status of the community : and existing infrastructtue facilities for social welfare includin!. rorir6g df - ^Cotte"tionpopulation. t of information with respgct to social awareness about the developmental activity in the area and social welfare measures existing and proposed byproject proponent. r Colleciion of information on sensitive habitat of historical;.uft*f and religious and ecological importance. The socio-economic survey/ profile within 10 km of the study area for demographic ' profile; Economic Stucture; . Developmental Profile; Agricultural prttices; Infrastructure, education facilities; health and sanitation facilities; available communication network etc. o Documentation of demographic, Ethnographic, Economic Structure and development profile of the area. o Information on Agricultural Practices, Cultural and aesttretic sites, lnfrastructure facilities etc. e o Informatio.n on the dgpendence of the local people on minor forest produce and their cattle gazingrights-th; in ttre forest land. ' List o1 all Project Affected Families with their name, og€, educational qualification, family size, sex, religion, caste, sources of incomelf*a & house loldings, other properties, occupation, source of income, house/lanil to be acquired for the project and house/land left with the family, any other property, possession of
o Special attention has to be given to vulnerable groups li.ke women, aged persons etc.
(7) Impact Prediction and Mitisation Measures
The adverse impact.due to the propose,cl p*jrrl should be assessed and effective mitigation steps to abate these impacts should be described. Air Environment
o Positive and negative impacts likely to.be accrued due to the project are listed. (S) Environmental Management plans j l' catchment Area Treatment (cef) should be prepared micro-watershed Identification,o{ free arainine/ oif:1r., -r{an wise. d;;irirg;;i,-ent-.based upon :Remore sensing Geographical Information svstlm rcrsi*.tt"a"i"gi"iia and AISLUS' suaiil"tyfiki'Inde{ (syl) method of Deptt' of Agriculture, Govt. mJiu .oriiJ*ith ground,survey. Areas or watersheds falling under 'very severe' and''ssvrr4"r .r;ri.r;;grries should be provided and rgquired to be treated' Both biological as well as engineering *"d;"s should be proposed in consultation state Forest Depar[nent for ** rrqiiring with ddrr;;-iear-wise ,riirdureorwork and monelary allocation'strouta be prwided. rvritigation ;.d;;; ctrect s.hifting cultivation in the oatclrment area with provision for alternative ui'a u.ttrr rg'i.uitu*ipr"*lres should be included. . 2' compensatory Afforestation shall be prepare! by ttre srate Forest forest land proposed to be diverted t ,r", of the or conrtu"iion;f tilr projecl * p","*;;;; ii', ilrest (conservation) Act' 1980' choice of plants for afforestation should-inciri; ili,l"ff iiC ,pgoirs,, if any. This will be a part of the foiest clearance proposal. ' 3' Biodiversif and wildlife conservati* plan proservation .IUaygement for the conservation and ol.t*t endangered or endemio-"14 flo'iaufaunal species or some , Pa'lc/sanctuarvl Biosphere Reslrve National ir. ur"*ua directry indireotly by construciion ofthe prqiect,"r;td;;;;iL; s"iriirlu. or tr,* riit"6r" cinservatioiiaJrruriirrrould be prepared consultation with the state Foresi in Drp"iliilil;d*;;ffiffiH?l"ri|6, detals. conservation techniques (in*itu/ex-situ) suitabre *ilii;;"p"*i und* the plan and conservation proposed the areas where such is will be marked on u prgj"riLyort *up. 4' Fisheries conseryation and Managemer, Pl;-; rr".* fisheries should be prepared nianagernent measures for river *o ,.r""*oii. ir tt r .""rlrrtio.n or fish ladder/ fish-way etc. is feasible then measures for reservoir nrt not rri.r *iiiuu"ffirca. The plan will detail of hatchtiries' nurseriest' rearilg out tho number ponds .rc. propgrcd"qn'd9r the plan with proper migratory fish species drawings. trf any is gettifu'atrertrg tfi routes,.time/season downstream migration, fi1ii,ilfo ----- of upstream and spiwnin-g grounds etc will ur al.uriua in aetaits. 5' Resettlement and Rehabilitation Ptan needed to be prepared socio-economic on the basis of findings of the survey coupled withtheoutcomr-"t*[it;.ooruituti"n r,riil shall be prepared afteiconsrttationi"itr, rr* nan:package the reprrs;diies orure project State Government. affected families and ttre Detailed budgetary estimates are to ue provided. Resettlements site should be identified. rhe pran wlr arso il;rpd;;ffirililulior*"* strategies; 6' Green Belt Devetopment Plan along tho periphery of the reservoiq uppr*rt ioads colonies and other project.o*ponrnL, around ttre pr*i"p*bs^m1st be suggested financial details' loca with physical and A iayout -up tt o*iog the propos"J'rito ro, prepared developing- the :green belt should be 7 Reservoir Rim Treatment ' Ptan for stabilization of land sride reservoir / land- slip zones, if any, around the pe.pheY is to.be-prepared based onE;td ;riry of golory of the reservoirrim , suitable engineering and biotogicut area. ,r*rr. f#;;rr;;;; ofidentified slip zones to bo:suggested with phvsical and financial scf,edule. a"t;;"p ;hffigr, theqrv landstide/landslip @'vrzones shalteucu prepared and appended in the chapter. ' lqrvouue'r'urfrD"r beus 8' Muck Qisposat PIan suitable sites for l -dlqning of excavated materials should be identified, consultation with state Pollution contror in Boi';;J atrtr'F";J6rd;;lin *u.t disposal sites should be minimum 30;-;*"v;;irrTriri'"ffi The quantiry of,muck to bo generated and the quantity of muck te utilized ry"potta?o rh"ll b; c-arcutatea in tion with the project authorities. Detairs of each dumping ,itu _i;;;""b. "orJt dumped dl;ffiil;tu.r that can be etc' should be worked'ouiana discussed"ir. pr"ii ioidii*. i"rirr,uuilitation of muck disposal- sites should also be given. rh' i-ili;rl;;;'filr#;il;;'iTisposal sites,and '1ln I .i- :. - (' 11\ .; :i -l l: and financial details of the medsures 1 approach roads should be given. Th" pl* *r.at npsfcal fye will be proposed. Layout map showing the dumping sites'vis-d-vis other project components prepared and appended in the chapter. etc' g. -ffii[Restoration plan for Quarry Sites and landscaping of colony areas, working areas, roads. ;i *ru e aggregate/clay etc. t"ifuir"a for construction of the projeot *9 +" ,o"p"tuy qo*i"rhir"r;houi-ri6"oarreltii, identified for the project should be.discussed along'with the physical-and financial Engineering and Biological measures proposed. for.ttreii restoration with -d&"i-;y"";i prepared. ilp sho"wing quarry sites vis-d-vis other project oomponents, should be parameters shou! 10. Study of Design Earthquake Parameters: A site specific study of earthquake * be approved by National be dorre. Results of the site specific earthquake design parameters should (NCSDP), New Delhi' Committee.of Seismic Design Parameters, Central Water Commission and Disaster Management Plan The outputs oldT break model should ll.^ - Dam Break Analysis il;il;;J*itf, upp-priate graphs and-maps clearly bringing oq the impact of Dam Break ;il;t,r il iAentid,'ininautioi *r^, population and structues likely to be affected d}e t9 the help of Dam B** catastrophic floods in the event of dam irifrr., DMPwill be prepared lith ;;rr[:-Mr.imurq water level that would be attained at various points on the downstream in area, to show the ou* tf du,n Ureat witt be marked on a detailed contour map of the downsteam plan extent of inundation. The action plan will include Emergency Action and Management plan co- inolud-ing measures like preventive action notification, warning procedure and action for ordination with various authorities post- 12. Water, Air and Noise Management Plans to be implemented during construction and construction periods. local 13.-t Public Eealth Delivery Plan including the provisions of drinking y1eT-.:upqly.for p"prLtiqorhdf be in thi EIA/EMP Report. Status of the gxisting medicalfacilities in the project ird" shail be discussed. possibilities of itrengthening of existing medical facilities, construction of ffi *rAi"A infr*troeture etc. will be after assessing the need of the labour force and "*plo..d ' local populace.
14-. Labour Management Plan for their Health and Safety. oamps '15. Sanitatign and Solid waste management plan for domestic waste from colonies and labour
re. il."r Area Development plan to be formulated in consultation with the Reyepug offrcials.and Village Pancatrayats. Appropriate schemes shall be prepared under EMP for the Local Area Development Plan with sufficient financial provisions.
17. Environmental safeguards during construction activities including Road Construction. Measures the w-o$ f9rc9 construction with physical 18. Energr Conservation for -during -a1d frnaniial daails. Alternatives will be proposed for the labour force so that the exploitation of the natural resource (wood) for the domestic and commercial use is curbed. 19. Environmental Monitoring Programme tp monitol thg mitigatory measures implemerrkd T.!ht project site is required will be pripared. Provision for Environment Management Cell should be monitoring ir"a,". The plah wiil spef out the aspects, required to be .-qoolitored, indicatorypararmeters with respect to each aspect and the agenoy responsible for the mo:ritoring of that particular aspeot throlghout the project implementation.
20. A summary of Cost Estimates for all the plans, cost for implementing all the Environmental Management Plans.
KIRTHAI HYDRO ELECTRIC PROJECT STAGE – II ( Jammu & Kashmir )
DETAILED PROJECT REPORT
VOLUME – 0 EXECUTIVE SUMMARY
OCTOBER , 2015
CONTENTS
CHECK LIST A
SALIENT FEATURES I
EXECUTIVE SUMMARY 9
1.1. Introduction 1
1.2. Access to the Project Area 2
1.3. Climatic Conditions in the Project Area 2
1.4. Historical Background of the Project 2
1.5. Earlier Proposals 3
1.6. Alternative studies 4
1.7. Splitting of Kirthai storage scheme into two stages 5
1.8. Kirthai Hydro Electric Project stage-I 5
1.9. Kirthai Hydro Electric Project Stage-II 6
1.10. Study of alternative dam sites for stage-II 6
1.11. Selection of Dam Site and Power house 7
1.12. Proposal for revision of DPR 7
1.13. Important Project Features 8
1.14. Need for the Project 14
1.15. Direct Benefit 15
1.16. Geological and Seismic Studies of Project area: 17
1.17. Construction material : 21
1.18. Hydrological studies 21
1.19. Power Potential Studies 27
1.20. Land and Population Affected by the Project: 33
1.21. Environmental Aspects 34
1.22. Project Headquarters and Residential Accommodation at Project Site 35
1.23. Project Set Up 36
1.24. Evacuation of Power to be generated at Kirthai Hydro Electric Project Stage-II 37
1.25. Construction Programme 37
1.26. Interstate / International Aspects 37
1.27. Cost Estimate 40
1.28. Cost of Energy Generation 40
1.29. Photographs of the Project site Error! Bookmark not defined.
CHECK – LIST
Kirthai H.E. Project Stage-II (930 MW)
CHECK LIST
I GENERAL DATA 1 Name of the Project Kirthai Hydro Electric Project-II
2 Location a State(s) Jammu & Kashmir. b Districts(s) Kishtwar c Taluka(s)/Tehsil(s) Padder d Longitude/Latitude Longitude 760 - 04' - 37" E to 760 - 00' - 52" E
Latitude 330 - 18' - 41" N to 330 - 19' - 20" N e Survey of India Topographical Map reference Degree Sheet SOI No.(s) No. 52c
f Earthquake Zone Zone- IV g Complete address for Correspondence along Chief Engineer (IBO), with Pin Code/e-mail CWC, Block IV, 6th Floor,KendriyaSadan, Sector-9, Chandigarh160009. [email protected] 3 Category of the project a Power Project / Multipurpose Power Project b Storage/Run of the river Run of the River Scheme II PLANNING 4 Has the Master plan for overall development of Yes the river basin been prepared and stages of basin development discussed?
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5 Have the alternative proposals (including set Yes of smaller developments viz-a-viz a single large development) been studied and their merits and demerits discussed?
6 Does the scheme fit in the overall development Yes of the river basin and has its priority in the overall development of the basin been discussed?
7 Have the other Departments concerned with Yes the development been informed?
8 Is the present scheme proposed to be Yes, The Project executed in stages? If so, are its various Kirthai HE Project is stages of execution and development being developed in discussed in the report? two stages i.e KHEP-I and KHEP-II
9 Are the effects of the scheme on the riparian Yes rights & existing upstream and downstream projects etc. discussed?
10 Has the provision for municipal and industrial NO water supply been made?
III INTERSTATE AND INTERNATIONAL ASPECTS
11 Are there any International/ Interstate issues No international/ involved? If so, have these issues been interstate aspect identified and present status of agreement or involved. tribunal decision indicated specially in respect of
a Sharing of water No interstate aspect involved.
b Sharing of cost No interstate aspect involved.
c Sharing of benefits (irrigation, flood control, No interstate aspect
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power etc.) involved.
d Acceptance of the submergence by the No interstate aspect upstream state(s) involved.
e Acceptance by the upstream state(s) of No interstate aspect compensation of land coming under involved. submergence
f Settlement of oustees No interstate aspect involved.
g Any other No IV SURVEYS 12 Have the detailed topographical surveys been carried out for the following items and maps prepared as per prescribed scales
a River surveys Yes b Reservoir surveys Yes c Head-works surveys(dam(s),dyke(s), etc.) and Yes auxiliary components)
d Plant and Colonies sites Yes e Canal (s), branch canal(s) and water NA distribution system
f Major canal structures NA g Power house, switch-yard, surge shaft, Yes tailrace
h Tunnel(s), Adit(s), Penstocks etc. Yes i Surveys (detailed and sample) of areas of the NA command for OFD and drainage works
j Soil surveys Yes k Surveys for soil conservation Will be done at Preconstruction Stage
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l Any other surveys i.e. archaeological, right of Yes way, communication etc.
V GEOLOGICAL INVESTIGATIONS 13 Have the geological surveys for the following items been carried out and report on geology of the following appended?
a Region as a whole Yes b Reservoir Yes c Headwork and energy dissipation area Yes d Power house and appurtenances Yes e Intakes and regulators Yes f Major canal structures NA g Tunnel(s),Penstock(s),hill(s) etc. Yes h Communication routes Yes i Any other VI SEISMIC INVESTIGATIONS 14 Has the seismicity of the region been studied The region falls in andco-efficient of vertical/ horizontal Zone-IV. The study of acceleration for the various structures site specific seismic discussed? spectra has been done by CWPRS and The designs have been 15 Has the approval of the Standing Committee done for recommending design of seismic accordingly. coefficients for River Valley Project been obtained?
16 Is there possibility of liquefaction of No foundations? If so whether liquefaction studies been carried out?
VII FOUNDATION INVESTIGATIONS
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17 Have the detailed foundation investigations (including in-situ tests and laboratory tests) for the following structures been carried out and detailed report(s) appended?
a Earth and rock fill dam(s) NO b Masonry/concrete dam(s) Yes c Barrage(s)/Weir(s)/head regulators) etc. NA d Canal( s) & Canal Structures NA e Power House(s), Tunnel (s), Transformer Yes Cavern, Desilting chamber (s), Surge tank(s)/shaft(s), Intake(s).
f Pump House(s) Yes g Any other Complete foundation investigation for Concrete Dam was done
18 Are there any special features affecting the No designs?
VIII CONSTRUCTION MATERIAL SURVEYS 19 Have the surveys and laboratory tests for the following construction materials been carried out and report(s) appended?
a Soils for impervious, semi-pervious and NA pervious zones of earth and rock-fill dam(s)
b Sand Yes c Rock and coarse aggregates Yes d Bricks and tiles Standard Items will be used
e Pozzolona Standard Items will be used
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f Cement and lime stone Standard Items will be used
g Steel Standard Items will be used
h Any other Survey and laboratory
tests for rock fill material has been done 20 Have the sources for each of the above Yes material been identified and need etc. indicated?
21 Have the proposals for procurement of scarce No such item materials been indicated?
IX HYDROLOGICAL AND METEOROLOGICAL INVESTIGATIONS 22 Have the hydrological and meteorological (a) investigations been carried out and status of following data discussed in report?
i Rainfall Yes ii Temperature Yes iii Sunshine No iv Gauge & Discharge Yes v Sediment Yes vi Water quality Yes vii Evaporation Yes 22 Has the above data been collected Yes (b) &appended? X HYDROLOGY 23 Is the hydrology dealt with in detail in a Yes separate volume? Have its brief details been included in this Report?
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24 Have an index map and bar chart showing No locations of various hydro-metric, climatic and rainfall stations existing/ongoing/planned water resources projects and the data availability at those stations been attached?
25 Have required detail note about project specific Yes hydro-meteorological data
observatories been attached. 26 Have required detail in case of Himalayan No rivers, if project being planned in upper reaches, the satellite imageries of project catchment especially one during snowmelt period (March-May) and one during monsoon (June-September) period been attached?
27 Are detail notes about quality, consistency, Yes Processing and gap filling of the data included.
28 Have hydrological studies been carried out for the following:
a To establish the availability of water for the Yes benefits envisaged?
b To determine design flood for the various Yes structures (spillway, barrage etc.)
c Sediments storage Yes d Design flood for diversion during construction Yes e Tail water rating curve Yes f Evaporation rates from reservoirs/concerned Yes area
g Command area rainfall Not applicable 29 Has the Ground Water Potential (existing use No and additional availability) been indicated?
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30 Have the studies regarding reservoir Yes sedimentation been carried out and revised elevation-area capacity curves been used in the simulation studies (Working Table)?
31 Have the ecological requirements of water Yes such' as low flow augmentation and water quality control etc. and water requirement for Domestic, industrial use and power
generation (thermal, hydel, nuclear)been considered and included in the Project Report and incorporated in the simulation studies?
32 Have the details of the simulation studies Yes (Working Tables) and conclusions arrived from the various alternatives explaining the factors and assumptions been included and discussed?
33 Has the number of failures for different Yes aspects been indicated?
34 Have the likely desirable and undesirable Yes Changes in the hydrologic regime due to the project been brought out in the report?
35 Is the criteria adopted for selection of the Yes construction diversion flood discussed?
36 Has the basis for determining the storage Yes capacity been discussed?
37 Have integrated working tables (for more than Not applicable one reservoir in the system) been prepared? 38 Has carry over storage been provided? If so, Not applicable whether studies for most economic carry over storage been done?
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39 Have the flood routing studies been carried Yes out?
40 Have the back water studies been carried Yes out?
XI LAND ACQUISITION AND RESETTLEMENT OF OUSTEES 41 Have the type and quantum of land proposed Yes to be acquired in the submerged area, project area required for rehabilitation of the oustees been detailed?
42 Is the basis for provision for land No, will be taken at compensation indicated? pre-construction stage
43 Have the rehabilitation measures, amenities Yes and facilities to be provided to the Project affected Persons been discussed and whether their provisions included in the report? Are these in accordance State's policy/project, specific policy/draft national policy for rehabilitation and resettlement?
44 Are the basis of land acquisition of the Yes submerged area upto FRL/MWL etc. discussed
XII DESIGNS 45 Does the state have established a Central Not applicable, designby Design Organization and State level is carried out CWC. multidisciplinary Advisory Committee and whether its' composition has been indicated in the report?
46 Has the selection of final location of the head Yes works and appurtenances, in preference to the other sites investigated, been discussed?
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47 Have the layout of the project viz location of Yes headworks, workshop sheds; offices, colonies etc, been finalized and discussed?
48 Has the layout of the various major Yes components of the head works been discussed in the light of site features, geology, foundation characteristics etc?
49 Have the detailed designs been prepared for the following components and got vetted by CDO? a Earth or rock fill dam, masonry or concrete Detail design is
dam, spillway, Barrage, weir etc. and prepared by Design appurtenances. wing of CWC. b Energy dissipation arrangements, training walls etc. Detail design is prepared by Design c Openings through dams-galleries head wing of CWC regulators penstocks other outlets, sluices
d Regulators. e Canal and water conductor system f Canal structures g Pump house ,intake structures h Power House, tunnels, surge shaft i Instrumentation j Power evacuation arrangement Prepared by CEA k Design of Hydro Mechanical equipments Detail design is prepared by Design wing of CWC
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50 Have the salient features of the above Yes components and the assumptions made in the design of above components of the project been indicated and their basis discussed?
51 Have any model studies been carried out for Model studies will be location of the dam, spillway and other carried out in Pre- appurtenances and checking the design profile construction stage. of the spillway, energy dissipation arrangements location of outlets/ regulators etc?
52 Has the final alignment of canal(s) and branch Not Applicable canals(s) been discussed in the light of various alignments studied?
a Does the canal design provide for meeting Not Applicable requirements of rush irrigation?
b Have any intermediate storages and tail tanks No been considered to reduce the canal capacities?
53 Are the canals and distribution system being Not Applicable lined and if so what is the minimum capacity of the channel proposed to be lined?
54 Is the location of canal structures on main and Yes branch canals fixed after detailed surveys of the final alignments?
55 Are the regulation arrangements of the NA offtaking channel both near and away from the cross regulators discussed?
56 Are sufficient escapes including terminal NA escapes provided on the main/branch canal distributaries/minors?
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57 Have the basis for adopting water way for the NA cross drainage works been discussed?
58 Have the proposals for rating the canal NA section by providing standing wave flumes, rating of the falls, broad crested weirs,Vnotches etc. been discussed for the canal and distribution system?
59 Have any model studies for major canal Model studies will be structure(s) been carried out and if so are the carried out in Pre results discussed and incorporated in the construction stage. design?
XIII FLOOD CONTROL AND DRAINAGE 60 Have the various flood control components of Yes the Hydro Electric project been indicated?
61 Have the damage areas in pre-project & post Yes project situations been identified and flood intensities worked out at each of the damage
centre(s) which gets affected? 62 Have the following flood aspects been discussed?
a Flood cushion in the reservoir Yes b Maximum moderated flood out flows over the Yes Spillway etc. andits frequency.
c Existing and proposed safe carrying capacities Yes of the channel below the dam after construction of flood embankment, channel improvement, river diversion etc.
d Synchronized moderated peak floods due to Yes. release from the dam upstream and unintercepted catchment upto the damage centres.
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e Average annual expenditure incurred on flood Yes relief works.
f Area and population affected/likely to be Yes affected before/after the project.
g Estimated saving in annual loss of life, Yes property, cattle, crops etc. (evaluated in terms of money) due to flood control.
63 Have the following drainage aspects of command area been discussed?
a Existing Surface and sub-surface drainage No network and problems of the drainage, congestion, water logging, alkalinity/salinity If any.
b Studies on sub soil water table (premonsoon, No post-monsoon etc.).
c Maximum intensity of 1, 2 and 3 day rainfall. Yes d Deficiencies in farm drains. Not applicable e Deficiencies in existing natural drains. No
f Proposal for improvement of drainage/water Will be taken up at logging / alkalinity/salinity of the area along pre-construction with justification thereof. stage.
g Identification of the area in Command which Will be taken up at will get benefited due to execution of drainage pre-construction net- work and benefits thereof in terms of relief stage. from crop damage, increased yields etc.
XIV. NAVIGATION
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64 Is the present scheme for remodeling of the Not applicable. existing facilities and/or extension of the navigable reach or establishing new navigable reach?
65 Is the existing inland transport system being Not applicable. fully utilized? If not, have the bottlenecks in its fully utilization been identified and discussed?
66 Have the surveys for goods and passenger Not applicable. traffic been carried out and discussed?
67 Is the extent of modification required in the Not applicable. existing system discussed and justified?
68 Do design for the canal section and structures Not applicable. take into account the navigation requirements?
69 Have the proposals to develop the new Not applicable. scheme and phases of development in the different reaches been discussed?
70 If the area is being served by inland water transport, have the following been discussed:
a The existing toll rates and registration fees for Not applicable. the crafts (size wise).
b Proposals for revision of tollage rates and Not applicable.
fees, if any. c Concurrence of the competent authorities Not applicable. for revision of rates and fees.
d Proposal to subsidies the tariff, tollage, craft Not applicable. registration fee, passenger fare etc. to attract traffic.
71 Has the State Inland Water Authority been Not applicable. consulted while finalizing the scheme and its view point discussed?
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72 Has economic justification and viability of the Not applicable. navigation component of the multipurpose project been discussed?
XV. POWER 73 Have the following points been discussed? a Availability of the power generating capacity in Yes the state as well as in the region from different sources.
b Total energy available and peaking capacity of Yes the system in the state as well as in the region from different sources.
c Integrated operation of the system and present Yes status of utilization in the state as well as in the region.
d Surplus and shortfalls in the system in the Yes state as well as in the region.
e Future plans of power development from Yes different sources in the State/ region.
f Fitment of the scheme in planning of power Yes development of the State/ region.
g Energy generated from the project firm power, Yes seasonal power and total power.
h Proposal for transmission lines connecting to Yes
the existing system/ grid. i Project cost per KWH installed and per KWH Not available. generated at bus bar as compared to the different hydro- electric, thermal generation and gas projects and different sources in the State as well as in the region to justify the power component of the project.
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j Whether the proposed addition to the Yes transmission system has been shown on a geographical map. Whether options considered for the proposed addition have been discussed with statement of justification for the selected option after carrying out supporting studies covering load flow studies, short- circuit studies (three phase and single phase and stability studies.
k *Whether sufficient' Surplus off Peak power is Not applicable available for pumping of water from lower to upper reservoir.
l *Actual off peak energy requirement of Not applicable proposed scheme.
m *Cost of peak-and off peak energy Not applicable (*for pumped storage schemes only) XVI CONSTRUCTION PROGRAMME AND PLANT AND MANPOWER PLANNING.
74 Are the major components of work proposed Through Contractors. to be done departmentally or through contractor?
75 Have the various alternative construction Yes programme been studied and proper
justification furnished for the final programmed adopted?
76 Has the proposed construction programme Yes been prepared and synchronized for timely completion of each of the major component of work?
77 Have the year-wise quantities of the following Yes materials of construction been worked out for various components of the project.
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a Excavation separately in soft and hard strata Yes b Earthwork in filling impervious, semi- pervious Yes and pervious
c Rockfill for dam toe, riprap etc. Yes d Stone for masonry Yes e Coarse aggregate for concrete Yes f Sand for filter, masonry/concrete Yes g Gravel for Filter Yes h Steel of various sizes and type Yes i Cement-normal, quick/slow setting with or Yes without pozzolona, special types
j Lime-surkhi-pozzolona Yes k Scarce material-special steel Yes l Other material-fuel, electricity, explosive etc Yes 78 Have the year wise quantities to be executed Yes by machine/ labour for each of the major component been worked out for each of the above material?
79 Have the labour intensive items of the various Yes major components of the project been identified and the quantities of such items worked out?
80 Have PERT chart or CPM diagrams for Yes
construction programme of various components been made and included in report? Has organizational setup and frequency for project monitoring been indicated in the Report?
XVII FOREIGN EXCHANGE
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81 Have the details of the plant and machinery, NA, all machineries spares, instruments and scarce materials to and scarce materials be imported worked out? are indigenous.
82 Has the phasing of imports and source (s) of Not applicable imports been discussed item wise?
83 Are the imports to be affected under foreign Not applicable grants/credits or internal resources of the country?
84 Is the scheme covered under State sector or Central sector Central sector?
XVIII FINANCIAL RESOURCES 85 Has the concurrence of the State Finance Not applicable Department been obtained?
86 Is the scheme included in the Five Year/ Will be included at Annual Plan? If not what is the present position appropriate stage. regarding its inclusion in the plan?
87 Whether the scheme has already been No started? If so, is the present stage of construction indicated?
88 Have the year wise requirement of funds Yes been indicated?
89 Is the scheme covered or proposed to be No covered under any foreign assistance/ aid agreement?
XIX ESTIMATE 90 Is the separate volume of estimate attached Yes
as appendix? 91 Is the year to which the rates adopted in the Yes estimate relate to indicated?
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92 Have the analysis of rates for various major Yes items of work for the major components of the project been furnished and with basis of analysis described?
93 Are the provision for the following items made on the basis of sample survey and subestimates:
a Distributaries, minor and sub-minors Yes b Water courses Yes c Drainage Yes d CAD Works Yes
XX REVENUE 94 Are the bases for the following sources of revenues furnished?
a Betterment levy and proposal for its recovery Yes b Irrigation cess Not applicable c Flood protection cess Yes d Crop wise water rates Not applicable e Sale of water for village/ city/industrial/ power/ Not applicable water supply
e Miscellaneous 95 Have these rates been compared with the Yes existing rates at the other projects in the State/ region?
96 In case the rates are being enhanced, has Not applicable the concurrence of the concerned department(s) been obtained?
97 Have the organizational set up for the No collection of revenue been indicated?
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XXI B.C RATIO 98 Is the allocated cost for the following As KHEP-II is a Hydro components of the multipurpose project Electric Project worked out and basis therein furnished?
a Irrigation Not applicable b Power Not applicable c Flood Control Not applicable d Navigation Not applicable e Water supply Not applicable f Any other No 99 Have the various departments of the State/ Will be taken up on the Centre agreed to the sharing of the above basis of this DPR allocated cost?
100 Have the crop wise benefits been worked out Not applicable for irrigated and un-irrigated crops being grown before project in consultation with the agriculture department and statement furnished?
101 Have the crop wise benefits been worked out Not applicable for proposed cropping pattern after the introduction of irrigation in consultation with the agriculture department and statement furnished?
102 Is the B.C. ratio of Irrigation Projects Not applicable acceptable or otherwise justified?
103 Is the B.C. Ratio for Flood Control Projects Not applicable acceptable or otherwise justified?
104 Is the B.C. ratio for power component of the Not applicable project acceptable or otherwise justified?
105 Have the financial and economic return Yes
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statements been furnished keeping in view the phasing of development?
106 Are the benefits other than those considered in Yes the B.C. Ratio and financial return statement been identified?
107 Is the benefit from Gall per land, if proposed, Not applicable based on lease rates admissible and statement from concerned Central/State authorities furnished?
108 Are the benefits from fisheries, horticulture, if Not applicable proposed, based on lease rates admissible and statement from concerned Central/ State authorities furnished.
XXII ECOLOGICAL ASPECTS 109 Is the area likely to have any of the a following environmental and ecological problems due to the altered surface water
i Excessive sedimentation of the reservoir and No the upper reaches of the river andits tributaries tailing into reservoir.
ii Water logging, salinity/ alkalinity No iii Quality of surface and ground water Will not effect. iv Ground water recharge Will not effect v Health hazards-water borne diseases, No industrial pollution etc.
vi Submergence of important minerals No vii Submergence of monuments/ No archaeological sites viii Fish culture and aquatic life Will improve ix Plant life (flora) Will not effect x Wild Life Will not effect
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xi Migratory birds Will attract xii National parks and sanctuaries Will not effect xiii Seismicity due to filling of reservoir Will not effect xiv Likely change in the regime of the river No xv Any other 109 Have the environmental and forest Under process. b clearances from MOE&F been obtained? If not what is status thereof?
XXIII COLONIES AND BUILDINGS 110 Has the planning of the colony/ building been Yes done keeping in view the ultimate use for optimum utilization of investment?
111 Has an estimate of the extent of higher cost Not applicable involved been made and details discussed?
112 Are the permanent buildings being constructed Yes required for maintenance of the project only?
113 Can the buildings other than required for Permanent colony has maintenance of the project being constructed been planned based be put to some other use after the completion on the requirement of of the project by the department or any other operation of the agencies? Project after executionand rest of structures were planned as temporary and semi permanent.
114 Have the interested agencies been consulted Will be consulted at in planning of the buildings to suit their pre-construction requirements later on? stage.
XXIV PUBLIC PARTICIPATION AND COOPERATION 115 Have the proposals for disposal of temporary Not applicable buildings been discussed?
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116 Are the possibilities of these been discussed In:
a Planning Will be discussed at pre-construction stage
b Construction Will be discussed at pre-construction stage
c Improved agricultural practices NA
d Any other 117 Have-public debates about utility of projects Will be done at been: held and the response thereof outlined preconstruction stage in the Report?
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S A L I E N T
Kirthai H.E. Project Stage-II (930 MW)
SALIENT FEATURES
The following salient features (and any others) as applicable to the project, shall be furnished: 1 Name of the project KIRTHAI HYDRO ELECTRIC PROJECT – II (KHEP – II) 2 Type of project HYDRO-ELECTRIC 3 Location Tehsil Padder District Kishtwar State Jammu & Kashmir 3.1 River Basin a) Name CHANDRA BHAGA (CHENAB) b) Located In i) State(S) Jammu & Kashmir (J&K) ii) Countries (if International River) India 3.2 River Chenab 3.3 Name of village near the Head-works Village: Kirthai Tehsil : Padder 3.4 Location of Head-works (a) Longitude 760 - 04' - 37" E (b) Latitude 330 - 18' - 41" N (c) Seismic Zone IV 3.5 Location of Power House (a) Longitude 760 - 00' - 52" E (b) Latitude 330 - 19' - 20" N (c) Seismic Zone IV 3.6 Project area reference to Degree Sheet SOI No. 52c 3.7 Access to the project Name Distance a) Airport Jammu 298 km b) Rail head Udhampur 232 km 4 International/ Interstate aspects of the project 4.1 Submergence due to In J&K 1.4 km2 projects
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4.2 Catchment area at Headwork Site 9987 km2 4.3 State-wise / Country-wise details of catchment area a) Up to International Border 29050 km2 b) In Himachal Pradesh 7844 km2 c) In Jammu & Kashmir 21206 km2 4.4 Upstream Projects i) Future Projects Kirthai-I, Barinium, Shuas, Reoli-Seli 4.5 Downstream Projects
i) Projects Completed Dul-Hasti, Baglihar, Salal ii) Projects Under Construction Ratle, Sawlakote iii) Future Projects Kiru, Kwar
5 Hydrology 5.1 Catchments area at headwork site 9987 km2 5.2 Climatic Data 5.2.1 Name of Station(s)and period of record S.No Names Period of Record 1. Gulabgarh 1992 2015 2. Koksar 1983 2015 3. Tandi 1974 2015 4. Udaipur 1974 2015 5. Arthal 1967 1991 6. Premnagar 1967 2015 5.3 Seismic Coefficients a) Horizontal 0.219g b) Vertical 0.146g 5.4 Design Flood (m3/s) 9600 5.5 Mean Minimum Discharge (m3/s) 58.22
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6 Reservoir 6.1 Water Levels (El-m) a) Full Reservoir Level (FRL) 1764.00 m b) Minimum Draw Down Level (MDDL ) 1750.75 m c) Invert Level for Power Intake 1731.80 m 6.2 Free board (m) 2 6.3 Live Storage 17 MCM
7 Submergence 7.1 Land and property submerged at MWL
a) Revenue villages affected (no.) (i) Fully ‘Nil’ (ii) Partially 2 no’s (Liae & Kirthai) b) Land affected (ha) (i) Gross 140 (ii) Govt. 33 (iii) Private 37 (iv) Forest 70 c) Buildings/houses (No.) (i) Houses 5 no’s (ii) Govt. ‘nil’ (iii) Temples ‘nil’ (iv) Mosques ‘nil’ (v)Govt schools ‘nil’
(vi) Pvt. school ‘nil’ (viii)Lift ‘nil’ Irrigation d)Tube Wells (No.) ‘nil’
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e) Road (km.) under submergence 4.5
8 Headworks 8.1 Type of Dam Concrete 8.2 Height of Dam (m) 121.00 8.3 EL of Dam at top (m) 1766.00 8.4 Length of Dam at top (m) 219.80 8.5 Length of Dam at the river bed (m) 68.00 8.6 Width of Dam at Top (m) 11.50 8.7 Spillway (overflow section) a) Location of spillway In Dam Body b) Type of spillway Sluice Spillway c) Length (m) 93 e) Max height above the deepest 121 foundation (m) f) Crest level (EL-m) 1712.50 g) Number of gates 5 h) Type of gate Radial i) Size of gate (mxm) 9 x 12.248 j) Energy dissipation arrangement Ski-Jump type 8.8 U/S Coffer Dam a) Height of U/S coffer dam (m) 25.50 b) EL of top (m) 1680.10 8.9 D/S Coffer Dam a) Height of D/S coffer dam 10.50 b) EL of top (m) 1662.10 8.10 Diversion tunnels a) Total number of diversion tunnels One b) Diameter of each diversion tunnel 10.50 (m) c) Length of diversion tunnel (m) 600.20
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9 Power 9.1 Installed Capacity (MW) a) Main Power House (MW) 840 b) Dam Toe Power House (MW) 90 9.3 Firm Power (MW) 118.80 9.4 Head Race Tunnel a) Length (m) 4289 b) Shape Circular c) Size (m) 10.5 Ø d) Lining Type PCC upto RD 4.00 m RCC Beyond RD 4.00 m e) Thickness of Lining (m) 0.6
f) Design Discharge (m /s) 413.47 g) Invert Level (EL-m) 1725.00 (at RD 0.0) 9.5 Intake a) Type Bell Mouth b) Size (m)(after Bell Mouth Transition) 5.785 m x 6.40 m b) No. of Intakes Four c) Intake Gates i) No. of Service Gates Four ii) No. of Emergency Gates Four f) Design Discharge (m3/s) 124.04 g) Invert Level (EL-m) 1731.80 9.5.1 Intake Tunnels a) No. of Intake Tunnels Four b) Dia. (m) 6.4 9.6 Desilting Chamber a) No. of Desilting Chambers Four b) Size (m) 440 x19 x 24.874(depth)
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c) Efficiency 90 % (to be finalized after the model study report) d) Type of Gate Fixed wheel with upstream skin plate and upstream seals (HRT side) e) No. of Bays 4 f) Clear Width of Gate (m) 4.70 g) Clear Height of Gate (m) 6.40 h) Sill Level (EL-m) 1728.97 i) Design Head (m) 35.03 9.6.1 Silt Flushing Tunnels a) No. of Silt Flushing Tunnels Four b) Opening Size 3.6 m x 2.5 m 9.7 Surge tank/shaft a) Nos. & location (HRT) One, At HRT RD 4289m b) Type, height (m), & size (m) Circular, 91.875 m high & 31.6 Ø c) Top level (EL-m) 1800.00 d) Bottom level (EL-m) 1723.00 9.8 Penstocks/pressure shafts: a) Number, diameter & length of 3 Nos, 5.25 m Dia & Pressure Shaft 827 m long b) Liner type Steel Liner c) Grade of steel ASTM 537 CL- II/ASTM517 Gr F d) Bifurcation/trifurcation Bifurcation 9.9 Main Power House a) Type Under Ground
3
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b) Average Gross Head (m) 232.08 c) Average Net Head (m) 225 d) Design Discharge (m3/s) 413.47 e) Dimensions (m) 187.5 x 22 x 49.7 f) Unit capacity (MW) - 140 g)Installed capacity (MW) 840 h) Type of turbine Francis i) Type of PH crane EOT j) Number and size of draft tube 6 Nos. With 5.1 m Dia. 9.9.1 Tail Race Tunnel a) Length (m) 352.50 b) Maximum tail water level (EL-m) 1532.50 c) Minimum tail water level (EL-m) 1527.50 d) Average tail water level (EL-m) 1530.00 10 Dam Toe Power House a) Intake In Dam Body (NOF Block 9) b) Size of Intake 4.555 m wide and 5.80 m high c) Penstock Dia. (m) 5.8 d) Bifurcation/Trifurcation 5.8 m dia. bifurcated into 2 penstocks of 5.1 m dia. and 2.7 m dia. 5.1 m dia. penstock further divides into two unit penstocks of 3.6 m dia. each, 2.7 m dia. penstock further divides into two unit penstocks of 2.7 m dia. each e) Type Surface f) Average Gross Head (m) 103.04 g) Average Net Head (m) 99.95 h) Design Discharge (m3/s) 99.71
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i) Dimensions (m) 78.525 x 24 x 36.5 j) Unit capacity (MW) 2 x 10 + 2 x 35 k)Installed capacity (MW) 90 l) Type of turbine Francis m) Type of PH crane EOT 10.1 Tail Race Channel a) Length (m) 51 b) Maximum tail water level (EL-m) 1658.30 c) Minimum tail water level (EL-m) 1656.00 d) Average tail water level (EL-m) 1657.15 11 Estimated Cost of Project ( In Crores) 5158.00 12 Cost of Power Generation (`/Unit) 2.06 Page
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EXECUTIVE SUMMARY Kirthai Hydro Electric Project Stage- II
930MW (6 x 140 + 2 x 35 + 2 x 10) MW
DETAILED PROJECT REPORT
EXECUTIVE SUMMARY
October 2015
Kirthai H.E. Project Stage-II (930 MW)
EXECUTIVE SUMMARY 1.1. Introduction
The state of Jammu & Kashmir lies between 32 17’ to 37 05' North latitude and 72 26' to 80 30' East longitude. The geographical area of the state is 2, 22,236 Sq.km. The population of the state as per the census of 2011 is 12541302 persons, with population density of 124 persons per sq. km and decadal population growth rate of 23.64%.
Kirthai Hydro Electric Project Stage-II is a run of the river scheme on the River Chenab and is located in tehsil Padder of district Kishtwar of Jammu and Kashmir. The proposed dam site is about 13 km downstream of Kirthai Hydro Electric Project Stage-I. Kishtwar town is about 58 Km downstream of the proposed dam site. The dam site is located at 33 18’ 41’’ N and 76 04’ 37”E. The Powerhouse is proposed at Lidrari which is about 8 km downstream of the dam site. The power house site is located at 33 19’ 20’’ N and 76 00’ 52”E. The location plan of the project is presented at Annexure-1. The lay out plan of the project is presented in Annexure-2.
Total Installed capacity of Kirthai Hydro Electric Project Stage-II has been proposed as 930 MW.The Firm Power of the project is about 118.80 MW. The installed capacity of main power house is 840 MW and that of Dam toe power house is 90 MW. The water from the dam would be diverted to an underground power house near Lidrari on the left bank of the Chenab river through 4.289 km long HRT for power generation with an installation of 6 units of 140 MW each operating under a net head of about 225m.The annual energy generation benefits from the project at the main power house which is underground have been estimated as 3160 MU in 90% dependable year with annual design energy generation benefits as 3055.89MU. The average load factor of operation of the main power house during lean period would be about 10.1% ensuring peak operation of the main power house for about 2.4 hours daily. Annual Plant load factor of the main power house would be about 43%.
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In addition, a dam toe power house with 2 units of 35 MW each and another 2 units of 10 MW each have also been envisaged to utilize the flows to be released directly from the dam into the river for environmental purpose. The annual and the design energy generation benefits at the dam toe power house have been estimated at about 307.19 MU and 296.17 MU respectively in 90% dependable year.
1.2. Access to the Project Area
As of now, the proposed Project site can be approached from Jammu Airport and Jammu Railway Station through Jammu - Kishtwar National Highway up to Kishtwar, which is 240 km away from Jammu. Beyond Kishtwar up to Project site there exist an all weather road maintained by BRO. The dam site is 58 km away from Kishtwar and power house site is 50 km away from Kishtwar . Both dam site and power house site of the project are on road head of existing Kishtwar -Gulabgarh- Sansari road . Nearest railway station is Udhampur which is 232 km from Project site.
1.3. Climatic Conditions in the Project Area
The climate of Project site is temperate. There is snowfall during winter season and summer is very pleasant. The average monthly rainfall is about 1048mm.The winter is very cold and recorded temperature in winter is very low.
1.4. Historical Background of the Project
To utilise the share of water of river Chenab as per Indus Water Treaty, a perspective plan for power potential of Chenab Basin was initiated and 14 schemes were identified during the 1st meeting of Chenab Co-ordination Committee under the erstwhile Ministry of Irrigation and Power, Govt. of India held on 19-11-1961. The fourteen schemes identified were as under.
Table 1 Schemes identified by Chenab Co-ordination Committee S.No. Name of Name of Installed Catchment Investigation Scheme river capacity area assigned to (Sq.Km) 1 Baglihar Chenab 450 17325 CWC
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2 Bardang Chenab 115 4817 H.P 3 Bursar Marusudar 1020 2937 CWC 4 DulHasti Chenab 390 10500 CWC 5 Gypsa Chenab 240 1311 H.P 6 Kirthai Chenab 750 6625 CWC 7 Naunatoo Chenab 400 9959 J&K Naigad 8 PakalDul Marusudar 1000 2965 CWC 9 Raoli Chenab 500 H.P 10 Rattle Chenab 180 14600 CWC 11 Salal Chenab 345 21497 J&K 12 Sawalkot Chenab 600 19480 CWC 13 Seli Chenab 165 5750 H.P 14 Thirot Chenab H.P Out of these 14 schemes identified for investigations, Central Water Commission (CWC) was entrusted with the responsibility of investigations of 6 schemes, whereas Govt. of J&K and Govt. of Himachal Pradesh (H.P) were allocated 3 and 5 schemes respectively. Central Water Commission completed the investigations of all the 6 schemes as entrusted to it.
Govt. of J&K and Govt. of H.P could not complete the investigation work as assigned to them. As Govt. of J&K could not do the investigation work for the Kirthai H.E. Project, the investigation work of this scheme was also handed over to CWC by Govt. of J&K in July 1988.
1.5. Earlier Proposals
The Kirthai Storage scheme was originally proposed to create 0.6 MAF storage on the river Chenab as permitted under the Indus Water Treaty between India and Pakistan (1960). Initially, it was envisaged to have a 212 m high concrete dam near village Kirthai (76º-6’-12” E, 32º –17’-10” N) in Padder valley of Distt.- Kishtwar, J&K, so that the wider portion of the river valley between Kirthai and Atholi could be utilized for optimum possible storage. It was proposed to provide 8 km long Head Race Tunnel (HRT) with underground Power House located at Lidrari (76º-1’-6”E & 33º-10’-33”N) to produce 750 MW power. The scheme remained under preliminary investigations by the Power Development
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Department, J&K, from year 1977 to 1988, when it was taken over by the Central Water Commission in 1988 for feasibility studies.
After taking over the work of investigation of Kirthai Storage scheme by Central Water Commission, it was found that the proposed Dam axis will submerge the beautiful Padder Valley, the only valley in the upper reaches of the Chenab with, agriculture land of about 643 hectares and forest area of about 1760 hectares. Central Water Commission tried to identify alternative dam sites with power house at Lidrari.
1.6. Alternative studies
Four alternative dam sites across River Chenab were identified and studied by Central Water Commission in consultation with the GSI. The entire four alternatives are shown at Annexure-3.
1st Alternative Site was located downstream of village Kirthai with underground power house at Lidrari. For this alternative three dam sites all downstream of village Kirthai were studied.
2nd Alternative Dam Site was identified upstream of Gulabgarh suspension bridge. This site was located near Gulabgarh. The river Chandra Bhaga (Chenab) flows through a deep gorge for a few kilometers upstream of the suspension bridge. The proposed dam axis was 250 m upstream of the Gulabgarh bridge. The site was studied for a high concrete dam and 18 km long Headrace Tunnel was proposed leading to an underground power house near Lidrari nallah.
3rd Alternative Dam Site was same as of alternative 2nd but power house site was within or near the body of dam.
4th alternative Dam Site was identified at Silper/Kidur with underground power house at Lidrari.
All these alternatives were studied in detail by CWC in association with GSI and a high dam at any of the alternative was not found feasible. The 1st alternative
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had proposed dam site downstream of Kirthai village and high dam at any of proposed locations of this alternative would have submerged land of Padder Valley. The 2nd alternative had proposed dam site upstream of Gulabgarh Bridge. The problem of submergence of Padder valley was avoided but the proposed 18km long Headrace Tunnel had to cross many nallahs on its way. The Geological features en-route would have posed many tunneling problems besides non-availability of suitable construction Adits. Though some locations for adits are available, these would be very long. The completion of such a long Head Race Tunnel would invite innumerable construction problems.
After detailed comparative study of all the four alternatives it was found that combination of 3rd and 4th is best for this scheme. This combination allows full exploitation of power potential available in this reach of Chenab river and would avoid submergence of precious land of Padder valley.
1.7. Splitting of Kirthai storage scheme into two stages
After detailed desk studies and visits of inter-disciplinary teams of CWC, GSI & CEA, Kirthai storage scheme was decided to be split into two stages i.e. Kirthai Hydro Electric Project stage-I and Kirthai Hydro Electric Project StageII. Both the stages have been proposed to be run of the river schemes. The Dam site of Kirthai Hydro Electric Project Stage-II was proposed near Silper or Kidur with Underground Power House at Lidrari.
1.8. Kirthai Hydro Electric Project stage-I
The dam site of stage-I was proposed about 250m upstream of Gulabgarh Bridge. Soon after finalizing the Dam axis and Power House locations, CWC started detailed field investigation. Field investigation work of the project was affected considerably due to non-conducive conditions in the state during 1993- 99 due to which work remained suspended during that period. Hence, the DPR of the Project could be submitted in 2003. Keeping in view the provisions of Indus Water Treaty, Kirthai H.E Project stage-I has been planned as run of the river scheme and only 3 M cum of storage for peaking purpose has been provided. The installed capacity of the Project was proposed as 240 MW (4 X
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60) MW in DPR. A 160m high concrete dam with central spillway and Underground Power House just downstream of Dam axis on left bank was proposed for stage-I Project. The DPR of this Project has been handed over to JKSPDC and at present it is in pre-construction stage. PMF Studies of Kirthai –I was revised by CWC and PMF value was increased from 7400 cumec to 9140 cumec. The installed capacity of this project is now increased from 240MW to 390MW.
1.9. Kirthai Hydro Electric Project Stage-II
The releases from stage-I project was planned to be utlised by constructing another project about 13 to 14 kms downstream of Gulabgarh. In addition, this proposed project would utilize the flows of Bhutnala and Hanswar nala also, which bring considerable flows even in the lean season. The power house site for the Stage-II Project have been planned just upstream of Lidrari nallah junction with the river Chenab. The power house would be Underground structure and tail water would be carried to the main river through a Tail Race Tunnel (TRT).
1.10. Study of alternative dam sites for stage-II
Two possible sites for Dam of Kirthai-II Project have been identified by CWC and GSI viz. one near the place called Silpar about 5 km downstream of Kirthai village and another just upstream of Kiddur Nala confluence which is about 1 km downstream of Silpar. The two alternatives are discussed as below:
1.10.1. Dam Axis near Silpar
This site is about 5 km downstream of Kirthai village. This site was found suitable for a rock-fill dam also but clay for impervious core was not available in that area. This site has granitic gneiss rock on both the banks. The width of river bed at this site is about 70m. The river bed is approximately at EL. 1675 m and top of dam can be kept at EL.1760 m or so. The length of dam at dam top would be around 250 m. The river reach is straight downstream of this dam site for some length to ensure suitable energy dissipation. The length of tunnel upto the underground power house near Lidrari would be approx. 6.0 km. It
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may be possible to have a number of construction Adits 300-400 m long each to facilitate construction of tunnel.
1.10.2. Lower Dam Axis U/S of Kidur Nallah
This site is about 1000 m downstream of above site and is suitable for a concrete gravity Dam. The river gorge is deep and narrow and the rock exposed on both the banks indicates availability of granitic gneisses on both the banks.
1.11. Selection of Dam Site and Power house
Both the sites were studied in detail by CWC and GSI and based on technoeconomic comparison, the site U/S of Kidur Nallah was selected. This site has geological advantage over site at Silpar. Length of HRT and width of dam is less for this site as compared to site at Silpar. The power house site was also shifted 80m towards HRT on advice of GSI because on earlier site it was found that lateral cover was not sufficient because of Lidrari nallah .Detailed field investigations were started by CWC from 1998-99 but progress was hampered considerably due to security issues because of militancy. The dam and power house sites of Kirthai-II projects were located in isolated places away from inhabited area and practically it was very difficult to carry out field investigation works in project area due to security reasons. The Staff of CWC tried their best and submitted the DPR in July 2010 after completing the field works.The installed Power Potential of the Project was 990MW (6X165).
EIA and EMP studies of the project are being carried out by developer of the project i.e. JKSPDC.
1.12. Proposal for revision of DPR
While carrying out power potential studies of the project it was felt by CWC, CEA & JKSPDC that the intermediate Nallahs/ streams joining the river will be sufficient for environmental flows. However, when JKSPDC made a presentation in MoEF in March 2012, it was desired by MoEF that the exact quantity of flows in these Nallahs/ streams be given. Since, there is no gauge or discharge site of state or CWC on these Nallahs/ streams, the exact quantity
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of flows could not be given. However, an attempt was made to work out the discharge with catchment area proportion. It was found out that the catchment area of major Nallahs between downstream of Kirthai-II to outfall of TRT was very less and was not sufficient for environmental flow as per latest guidelines of MoEF. As per latest guidelines of MoEF, environmental flow releases should be 20% of average of 4 lean months of 90% dependable years and 30% of monsoon period from June to September.
A meeting was taken by Member (Hydro), CEA on 22.08.2012 at CEA, Sewa Bhawan, New Delhi to review the status of DPR of Kirthai Hydro Electric Project Stage-II. In this meeting representatives from JKSPDC, CWC, GSI & CSMRS had participated and discussed the issue of environmental flow releases. It was discussed that if environmental flow is released as per latest guidelines of MoEF then there will be an overall effect on most of the parameters of the project. GSI, Delhi has also raised certain observations regarding additional drilling and drifting. It was decided in the meeting to carry out the additional investigation works and revise the DPR.
Hydrology (N) directorate of CWC revised the PMF of Kirthai Hydro Electric Project Stage-II from 7440 cumec to 9600 cumec on 20.2.2013. Power potential studies of the project were revised based on latest guidelines of MoEF for releasing of environmental flow. However, to utilise this flow to be released directly from the dam into the river for environmental purpose, a dam toe power house (located close to the dam site) have been envisaged with an installation of 2 units of 35 mw and another 2 units of 10 MW .But still the installed capacity of the project including capacity at dam toe power house was reduced to 930MW due to requirement of sufficient release of water for environmental purposes.
1.13. Important Project Features
1.13.1. Concrete Dam:
A Concrete Dam 121m high has been proposed for Kirthai Hydro Power Project Stage-II. The length of dam at top is 219.8 m .The overall length of the spillway
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section of the dam is 93 m comprising five numbers sluices each of 9m width with crest elevation at El.1712.50 m and one maximum overflow spillway ogee type of 4 m width, with crest elevation at El. 1760.00 m. The overall length of the non overflow section of dam would be 126.80 m extending on both sides of spillways. Considering Free Board requirements, the top of the dam has been kept at El. 1766.00m. A 1.0 m high solid parapet wall has been provided on the upstream side
1.13.2. Coffer Dams and Diversion Tunnel
For the purpose of managing the river during excavation of foundation and initial construction of concrete Dam, a Diversion Tunnel of diameter 10.5m has been proposed on the right bank of the river. Length of diversion tunnel is 600.20 m. For diverting the water through diversion tunnel an upstream coffer dam of 25.50 m height has been proposed. The height of downstream coffer dam has been kept at 10.5 m.
1.13.3. Spillway
The spillway is located centrally in the river portion. The overall length of the spillway is 93 m with 5 nos. sluice bays of 9 m each and piers of 4.5 m width each. The crest elevation of the sluice spillway has been kept at El. 1712.50m. The sluice spillway has been designed for a peak flood of 9600 cumecs which corresponds to PMF. A maximum overflow spillway of 4 m
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width has been provided in the pier of sluice. The crest elevation of the ogee portion is at El. 1760.00m. The maximum overflow spillway has been designed to pass logs and debris.
If the reservoir gets silted up to the crest level, there is possibility of boulders rolling down over the spillway glacis. To avoid any damage to the spillway surface due to rolling boulders, suitable protective arrangement has been proposed by way of providing 0.5m thick high strength silica fume M50 grade of concrete on the crest & glacis and around the sluice.
Energy dissipation arrangement
Various alternatives were considered for arriving at a suitable Energy Dissipation Arrangement. It is found that only ski-jump type energy dissipation arrangement will be effective. Further the bed rock is competent to withstand the scour thrust.
Ski-Jump Bucket
A trajectory ski-jump bucket of radius 42.50m with invert elevation at El.1678.75m and lip angle of 35 has been found to be sufficient for energy dissipation purpose.
1.13.4. Power Intake
The FRL and MDDL of the Project reservoir have been kept at 1764.00 m and 1750.75 m respectively. The invert level of Intake is required to be kept sufficiently low for preventing vortex formation at the entrance and sucking of air into the tunnel at the lowest pond level (MDDL). For satisfying the above requirements the center line of Intake has been kept at EL 1735.00 m.
Four Nos Bell Mouth intakes with invert level at EL 1731.80 m have been proposed through the hill on the left bank of the reservoir. The design discharge for the scheme has been worked out as 413.47 cumecs. The opening area of size 5.785 m (width) x 6.40 m (height) has been provided after bell mouth transition. Four numbers of power intake tunnels of 6.40 m dia. circular section
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have been provided to draw 124.04 cumec discharge (including 20% for silt flushing discharge) off taking from intake to feed four nos. of underground desilting chambers spaced at 65 m c/c. The length of the four intake tunnels varies from 916.62 to 1022.98m. Concrete lining has been provided in the intake tunnels. Lining has been designed for internal water pressure and has been checked for external water pressure. Metal trash racks are proposed to be provided in front of the intakes for preventing entry of floating debris of size larger than 75 mm
1.13.5. Desilting Chambers
Provision of four nos. underground desilting chambers of size 440 m x 19 m x 24.874 m (depth) each have been made to remove the silt particles of size greater than or equal to 0.2 mm at 90% efficiency. To facilitate the construction of desilting chambers, a construction adit of size 7 m x 7 m Dshaped has been proposed which will bifurcate into two adits of size 7 m x 7 m each to reach at top and hopper portions of the chamber.
The silt deposited at the bottom of the desilting chamber is to be collected and transported through the silt flushing conduit provided at the bottom. After coming out from desilting chamber this conduit has been provided with a gate to regulate the required discharge. All the four nos. of silt flushing tunnels, after the gate, join into a single tunnel which finally drops the silt back into the river Chandra Bhaga (Chenab). The outlet of the flushing tunnel would be sufficiently d/s of the dam to obtain the required head for flushing while being above the maximum river water level at the outlet location.
1.13.6. Head Race Tunnel
One circular tunnel of diameter 10.50m and length 4.289 km is proposed to carry design discharge of 413.47 cumecs from Desilting Chambers to the Underground Power House. It is proposed to provide two nos. of construction adits for the HRT one each at start & end. A total number of four working faces would be available for construction of the HRT. The slope of HRT has been worked on the basis of the analysis of surge shaft for down surge case.
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The HRT is proposed to be constructed with a gradient of 1 in 296. The invert level of HRT at RD 0.0 has been fixed in such a way that in no case during its filling, the air is trapped between intake gate and HRT.
1.13.7. Construction Adits
The D- shaped section of size 7m x 7m has been adopted for the adits with a mild slope towards adit portals to facilitate gravity flow of the seepage water. The lengths of construction adits at upstream & downstream location of HRT are 391.5m & 469.9m respectively.
1.13.8. Surge Shaft
Considering the geology and topography of the area, location of power house complex, bore hole data and maximum surge level etc. the center line of 31.60m dia. Surge shaft has been located at RD 4289 m of HRT. From the analysis, the maximum up-surge level works out as EL1790 m and minimum down-surge level as EL. 1728 m. Accordingly, the top of the surge shaft has been fixed at EL.1800 m giving sufficient water cushion over the maximum upsurge level. Similarly a sufficient water cushion has been provided at the junction of HRT with the surge shaft bottom. The over-all height of surge shaft works out to 91.875 m and dia of surge shaft is 31.60 m. The surge shaft is provided with a dome of size 37 m x 37 m with its top at EL. 1815.00 m. Three nos. pressure shafts of 5.25 m diameter each off-take from the surge shaft at centerline EL. 1711m. One Butterfly Valve Chamber of size 94 (L) X 12 (W) X 20.875 (H) has been provided downstream of Surge Shaft at 30m distance to enable dewatering of the pressure shafts, when required, for carrying out maintenance/ repair works for pressure shafts and main inlet valves.
A 7m x 7m D shaped Construction Adit of length 469.9m has been provided towards the end of HRT for construction of both the surge shaft and HRT.
1.13.9. Pressure Shaft
Underground vertical/ horizontal pressure shafts have been proposed to convey the water under high pressure from surge shaft to the power house.
DPR: Vol-0: Executive Summary Page 12 Kirthai H.E. Project Stage-II (930 MW)
Considering the amount of discharge and head involved, as well as the number of turbines to be fed, it has been decided to provide three steel lined pressure shafts of 5.60m dia each. These Pressure shafts would emanate horizontally and radially (60 apart) from the surge shaft at centerline EL 1715.75m. The shafts would become parallel to each other after attaining a center line distance of 35m between them. After traversing a horizontal distance, these shafts will bend downwards vertically and run horizontally at EL.1521 m (center line of the turbine nozzles), each pressure shaft bifurcating further, near the power house, to a size of 3.75m dia, to feed the six generating units.
An 8m x 9m D shaped Construction Adit in the bottom horizontal portion of pressure shafts has been provided for construction of pressure shafts and lying of bifurcation pieces of steel liner.
1.13.10. Power house
Six units, each of 140 MW capacity with vertical axis Francis Turbine have been proposed to be installed in the power house located on the left bank. The size of Power house has been proposed as 187.50 (L) x 22m (W) and 49.70m (H) respectively. The centre line of machine hall is kept at EL 1521m and the top EL of Power House is 1557.50m.The generating units would be spaced at 22m center to center.
The water emanating of the turbine/power house is carried through a circular draft tube of 5.10 m. All the six draft tubes are provided with a gate, which will be operated from transformer hall.
The Transformer and GIS Bay would be in an underground cavern located at 40m d/s of the power house cavern. The size of transformer & GIS cavern is 191 m (L) x 18 m (W). It accommodates 20 unit transformers at EL. 1534.00m which is same as the service bay level. Gas insulated switches (GIS) equipments will also be installed in this cavern at an EL. of 1543.50m.
DPR: Vol-0: Executive Summary Page 13 Kirthai H.E. Project Stage-II (930 MW)
The water emanating from the draft tube fed into the river Chandra Bhaga (Chenab) through 10.50 m dia TRT of 352.50 m length. The invert level of outfall has been kept at E.L.1523.00 m which is below the TWL of 1527.50 m.
1.13.11. Dam Toe Power House
A dam toe power house has been planned for a design discharge of 99.71 cumecs. Four units of capacity, two of 35 MW each and two of 10MW each have been proposed to be installed with vertical axis Francis Turbine in the surface power house. Power House is planned on right bank of the river at the toe of dam block number 9. Power Intake for dam toe power house has been provided in the dam block. A 5.8m diameter steel penstock starts downstream of intake gate transition, comes out at dam fall and runs down to EL 1650. A bifurcation piece is provided to bifurcate 5.8m diameter penstock into two penstocks of 5.1m dia. and 2.7m dia. penstocks. Further 5.1m dia. penstock drops down to EL 1649m and bifurcates into two unit penstocks of dia. 3.6m each. Similarly, 2.7m dia. penstock also bifurcates into two unit penstocks of 1.8m dia. each. Penstocks are covered with M15 grade of concrete below EL 1667m.A surface power house is provided in front of dam block number 9. The bottom of power house is at EL 1639.5m. Service bay and machine hall has been provided at EL 1658.30m. Transformer hall and GIS have been provided behind the power house at EL 1659 m and EL 1667 m respectively.
Draft tubes of these machines are provided with a gate which will be operated from the deck at EL 1659 m. The dimensions of surface Dam Toe Power house is 78.525m X 24 X 36.5 m(H).
Tail race channel has been provided in form of draft tube which discharges the power house discharge into river. It has a slope of 4(H): 1 (V) and has weir at EL 1656m which is the minimum tail water level.
1.14. Need for the Project
Kirthai Hydro Electric Project Stage-II is a run of river scheme having both direct and indirect benefits. Hydro power generation is the major direct benefit of the
DPR: Vol-0: Executive Summary Page 14 Kirthai H.E. Project Stage-II (930 MW)
Project. In addition to this, there will be indirect benefits also such as fillip in tourism, infrastructure development in the form of roads and buildings. Besides this the Project will have a potential for employment generation which will help in the socio-economic development of the people of the region in particular and state in general.
1.15. Direct Benefit
1.15.1. Power:
The estimated hydro power potential of the State is 20,000 MW, out of which about 16480 MW have been identified. Out of the identified potential, only 2456.2 MW i.e. 15 % (of identified potential) has been exploited so far, consisting of 760.46 MW in State Sector from 21 power projects, 1680 MW from four power projects under Central Sector i.e. {690 MW Salal, 480 MW Uri-I, 390 MW Dulhasti and 120 MW Sewa-II Hydel Projects} and 17.5 MW from two private sector projects. The installed capacity of 760.46 MW from state sector projects includes the 450 MW of Baglihar Phase–1. Due to resource constraints, exploitation of the potential economic rejuvenator like hydro power has been very steady. Besides, due to the constraints imposed by the provisions of Indus Water Treaty between India and Pakistan preventing storage of the water of Jhelum, Chenab and Sindh Rivers, these projects have been constructed as run of the River projects. The State is therefore under perpetually energy deficiency and has to rely on power purchase from Northern Grid to meet its requirement particularly in winters, when its own generation recedes and demand peaks. The graph given below depicts the identified, harnessed and under construction power potential by J&K State and Central Government.
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Figure 1 Power Potential by J&K and Central Govt. (Source: J&K State HEP Development Policy 2011)
The demand and availability scenario (Energy in MU) of J&K is tabulated below:
Table 2 Demand and availability scenario (Energy in MU) of J&K YEAR 2007-08 2008-09 2009-10 2010-11 2011-12 2012-13
Energy 14037.00 14750.0 15656.0 16544.00 17323.0 17842.69 Requirement (MU) Energy availability 8743.96 9147.21 10238.00 10667.00 11091.26 11465.58 (MU)
Energy deficit 5293.04 5602.79 5418.00 5877.00 6207.59 6282.66 (MU) Energy deficit (%) 37.71 37.99 34.61 35.52 35.83 35.21
The demand and availability scenario (Peak power - MW) of J&K is tabulated below:
Table 3 Demand and availability scenario (Peak power - MW) of J&K YEAR 2007-08 2008-09 2009-10 2010-11 2011-12 2012-13 Energy 2020 2120 2247 2369 2500 2600 Requirement (MW) Energy 1350 1340 1407 1492 1788.9 1900 availability (MW)
DPR: Vol-0: Executive Summary Page 16 Kirthai H.E. Project Stage-II (930 MW) YEAR 2007-08 2008-09 2009-10 2010-11 2011-12 2012-13
Energy deficit 670 780 833 877 711.10 700 (MW) Energy deficit 33.17 36.79 37.07 37.02 28.44 26.92 (%) The figure shows that from 2007-08 to 2012-13 the actual demand has increased from 14037 MU to 17842.69 MU respectively. The power shortfall has increased at an alarming rate. Recognizing the urgency and need of development of hydro power, implementation of this project becomes very important. The power of Kirthai Hydro Electric Project Stage-II will increase the power availability of northern grid and J&K state will be benefited by this additional power.
1.15.2. Indirect Benefits
1. Tourism
The artificial lake with a big water spread shall become one of the biggest recreational spots in Padder area. It will attract more tourists for Machail Mata yatra and hence increasing the tourist inflow and thereby increased revenue collection from the region.
2. Infrastructure Development
Infrastructure like roads, bridges, buildings etc. will be built at a large scale at the construction stage of the project which will ultimately benefit the local population.
3. Employment generation
This project will create immense potential for employment generation as lot of manpower both skilled and unskilled would be required during as well as after the Construction of the project.
1.16. Geological and Seismic Studies of Project area:-
All the components of the project are located on the Pias Granite which is intruded within the Kishtwar Window. The Kishtwar Window is a conspicuous structural element of Higher Himalaya. It exposes Dul Quartzite enveloped by
DPR: Vol-0: Executive Summary Page 17 Kirthai H.E. Project Stage-II (930 MW) Salkhala Formation, which is tectonically overlain by the high grade metamorphites (Central Crystalline rocks) along the trace of Main Central Thrust. The rocks of Kishtwar Window are overriding the younger Salkhala Formation along Kiaji Thrust.
Geology of Dam site :- River width along the dam axis is about 85 m. River bed level as observed on the right bank is about 1660 m above m. s. l. Left side hill slope upto road level i.e., RL 1717 m is almost vertical and 15 m from the slope edge, slope is slightly less steep (65°).Right bank abutment slope is comparatively less steep (40°) upto dam top. Above the dam top slope is steep and high. Both the abutments appear to be quite stable. However, a prominent joint set trending N50º to 55ºW –S50º to 55ºE and dipping 50º to 80º towards SW i.e., towards river side, is recorded. Opening along this joint set is noticed upto 20 cm. To avoid stability problems along the joint plane, removal of unstable rock blocks are felt necessary. At the dam site, granite gneisses with thin to thick pegmatite veins intruded in the rocks of Kishtwar Window are exposed. The rocks are generally fresh, massive and hard. Four set of joints have been recorded in the area but no major structural discontinuity in the form of thrust or fault has been noticed at dam site. The dam axis is aligned in N83°W to S83°E direction. The dip and strike of the foliation in the rock units along the dam axis is N35ºW-S35ºE and dip 45º towards NE. No major structural discontinuity has been noticed at the dam site and adjoining area and none is expected at foundation grade. Geotechnical studies have indicated that rocks exposed at the dam site are quite competent for the proposed dam.
Geology of Diversion tunnel:- The 600.20 m long diversion tunnel with a diameter of 10.5 m is proposed to divert water of the Chenab River during the construction of the dam. It is aligned through a ridge along right bank near the dam axis. The hill slope towards the river varies from 50° to as steep as 70°. The area along the proposed tunnel is occupied by granite gneisses with thin partings of schistose rock. The general trend of the foliations varies from N15°W-S15°E to N55°W-S55°E dipping 30° to 70° North-Easterly. The tunnel alignment will more or less follow the strike of the foliations of rock mass, due to which the rock exposed at the inlet portal may continue for the major part of
DPR: Vol-0: Executive Summary Page 18 Kirthai H.E. Project Stage-II (930 MW) the tunnel except near the out let portal where the tunnel makes a bend. Reversal of the dip has also been recorded in the area due to folding.
Geology of Intake and Desilting chamber:- The detailed geological mapping of the intake gates and desilting chambers was carried out on 1:1000 scale. Both the components are located in the granite gneisses of Pias Granite which is hard and fresh at the surface. The subsurface exploration of the dam body was carried out which is located in the similar setup of rocks. The drift along the left abutment of the dam axis is very near to the desilting chamber. No adverse geological conditions were recorded during 3 D logging of drifts.
Geology of Head Race Tunnel (HRT) :- Headrace tunnel (HRT) is proposed through left bank ridge made up of jointed to massive granite gneisses. Studies reveal that 4.289 km long HRT along the left bank of Chenab river is aligned in favorable Geological condition, almost cutting across the foliation / bedding trend of the rock units represented by granite gneisses of Pias Granite, phyllites and quartzite of Kishtwar Window exposed along the tunnel alignment. Two thick bands of quartzite and phyllites of Kishtwar Window measuring 290 m and 950m are exposed along the HRT after crossing the Kidur nala and near Shasho village. The minimum cover over HRT under Kidur nala is about 50 m and maximum cover is in the order of 950 m. No major problem is anticipated during the excavation of the tunnel except some wedge failures due to the presence of shear seams which may cause over break.Water seepage problem where the alignment is passing below perennial nalas cannot be ruled out.
Geology of Underground Power house :- The proposed powerhouse will be located on the left bank hill just upstream of confluence of the Chenab River with Lidrari nala. Detailed geological mapping of the underground power house and tail race tunnel covering an area of about 0.075 sq. km was done. The studies have revealed that massive and competent granite gneisses are expected in the proposed underground power house and tail race tunnel. Rocks are traversed by three prominent joints which are widely spaced. These joints are also associated with shear zone varying in thickness from a few centimeters to 3.5 m.The adjoining area also exposes phyllites and graphitic phyllite, quartzites of Lopara Formation and Pias Granite as intrusive. The Lopara
DPR: Vol-0: Executive Summary Page 19 Kirthai H.E. Project Stage-II (930 MW) Formation is the oldest rock unit in the area and occupies the lower most Stratigraphical position and show comparatively higher grade of metamorphism and is represented by slates, phyllites and graphitic phyllites. The granite/granite gneisses, occurring as intrusive bodies, are the other rock units in the area. The granites are medium to coarse grained and foliated. The general trend of the foliation is N45°W - S45°E and dip varying from 30° to 45° north-easterly. The overall rock quality is good. Granitic gneisses are exposed in the area of the Tail Race Tunnel (TRT) and traversed by joint.
Geology of Reservoir area :- Traverse geological mapping of reservoir area was carried out along the rim of the reservoir to identify the major structural features, landslide zone, low topography area and any submergence of mineral deposits .The rocks exposed in reservoir area are white Quartzite, phyllite, sericite schist, granite and granite-gneiss of Kishtwar Window. The general trend of foliation is N35°W/25°NE. Three sets of joints have been recorded. The rocks are generally massive and compact. The rocks are in blocky in nature. Minor shear zone have been noticed during mapping. Tectonically, two major thrusts namely Kijai thrust and Atholi thrust are passing through the area which is upstream of the reservoir tail. No impacts of these thrusts have been noticed. Minor shear zone and shear seams have been noticed. From the overall assessment of the reservoir area and its periphery,it is inferred that there is no possibility of water leakage in the adjoining valleys or basins as the water divide along northern as well as southern periphery is above 4000 m above MSL whereas, FRL of the reservoir is at 1764 m above MSL. Since the reservoir periphery is occupied by slope debris/river terraces at places particularly in the tail part of the reservoir, after filling of the reservoir sliding at some points along the periphery is anticipated this may not have any effect on the competency of the reservoir but may add to the siltation problems in the reservoir.
Seismic Studies of Project area: - The Kirthai Hydro Electric Project Stage-II (KHEP-II) is located in the highly seismic Himalayan tectonic province, which is having complex geological setup. The region of the project site has been subjected to several large magnitude(≥ 7.0) earthquakes such as the 4th April 1905 Kangra and 19th January 1975 Kinnaur earthquakes and the relatively recent 8th October 2005 event of magnitude 7.6 in the KashmirKohistan region
DPR: Vol-0: Executive Summary Page 20 Kirthai H.E. Project Stage-II (930 MW) near the India-Pakistan border to name a few. The project site is located in seismic zone IV as per the zoning map of India (IS: 18932002, Part-1). Site- specific design ground motion for KHEP-II site has been estimated by CWPRS Pune by carrying out detailed analysis of the data on seismotectonic and geological features and past seismicity in the region.
The site-specific horizontal design seismic coefficient for the dam is found to be 0.219 g dam. The corresponding vertical design seismic coefficients can be taken as 0.146 g.
1.17. Construction material :
Five quarry sites for coarse and fine aggregate were identified in association with GSI and CSMRS. The location of these quarry sites is given in below table.
Table 4 Location of the quarry sites Quarry site Location number
1 Road side opposite CWC old camp at village Kirthai 2 2.5 Km Upstream from Dam Axis near Trinalah. Quarry site Location number
3 500 m Downstream from Shasu village 4 1km Downstream from Shasu village 5 1 Km downstream of Power House Lidrari 1.18. Hydrological studies
Chandra and Bhaga rivers join near Tandi in the districts of Lahul and Spiti in Himachal Pradesh to form river Chenab. The Chandra and Bhaga originate from the south-west and north-west faces of Baralacha Pass respectively in the Himalayan canton of Lahaul and Spiti valley in Himachal Pradesh. Thereafter, the river enters Padder area of Kishtwar district in J&K and is joined by Bhutnallah at Gulabgarh. Chenab is also known as Chanderbhaga in upper reaches up to Bhandarkot (Kishtwar).The River flows between steep cliffs of high mountain up to project site. The river drains a catchment area of about 9987Km2 upto project site. The catchment area of the river up to dam site is presented at Annexure 4.
DPR: Vol-0: Executive Summary Page 21 Kirthai H.E. Project Stage-II (930 MW) The estimated hydro power potential of the Jammu and Kashmir State is 20,000 (MW), out of which about 16480 MW have been identified. A major portion of this hydro power potential i.e. about 9017MW is on river Chenab, which is a veritable goldmine for the state, waiting to be harnessed. Cascade development of hydro-power in Chenab Basin is shown in Annexure 5.
Water Availability Studies: The following stations discharge data has been considered in water availability studies of the project:
Table 5 Discharge data has been considered in water availability studies Sr. Udaipur Arthal Benzwar Premnagar Gulabgarh (CA- 8530 No. ( CA- 5764 (CA- 7760 (CA- 10687 (CA- 15490 Sq km) Sq km) Sq km) Sq km) Sq km)
1 1973-2008 1973-1990 1967-2003 1967-2010 1991-2009 The data at Arthal is limited up to the period 1990 and it will be advisable to use the updated data therefore the use of Arthal data for the purpose of development of flow series at the project site in the first instance is ignored.
The consistency of data of Gulabgarh and Premnagar has been checked at first instance and Regression analysis has been carried out between Gulabgarh and Premnagar data for the following periods from 1990-91 to 2008-09:
1. June - October
2. November - February
3. March – May
The R value has been found 0.8684, 0.4024 and 0.8532 for the periods June to October, Nov to February and March to May respectively.
Then, Regression analysis was carried out between Udaipur and Benzwar data from 1973-74 to 2002-03 and R value found to be 0.8749, 0.6408 and 0.8944 for the periods June to October, Nov to February and March to May respectively.
The results of the Regression analysis carried out between Benzwar and Premnagar sites from 1968 to 2003 has been found better regression
DPR: Vol-0: Executive Summary Page 22 Kirthai H.E. Project Stage-II (930 MW) coefficients as R value obtained was 0.9063, 0.7271 and 0.9270 for the periods June to October, Nov to February and March to May respectively.
Since the correlation between Benzawar and Premnagar sites have been found better out of these combinations and also the data considered is of longest period (1967-68 to 2002-03); and also as the catchment area up to Benzwar site is close to the catchment area of the dam site of kirthai-II H.E Project, the data of Benzwar site has been considered as base data and the data for the period 2003 to 2010 at Benzwar has been derived considering the relationship so developed between Benzwar and Premnagar for the periods June to October and March to May due to good correlation coefficients mentioned as below:
June to October
YB = 0.6242X+38.117 R=0.9063
March to May
YB = 0.5531X-26.108 R=0.9270
The relationship for the period November to February where the correlation coefficient is poor, the data of Benzwar has been derived on 10 daily coefficients to the remaining 8 months volume of flow with Premnagar annual flow for the respective year. The completed data series was transposed at project site Kirthai-II on the basis of catchment area proportion and the flow series at the project site for the period 1967-68 to 2009-10 have been completed.
Dependable flow at 50% and 90% has also been computed. The 90% dependability is found to be 8908 MCM (1971-72) and the 50% dependability is 11630 MCM (1982-83).
Design Flood Studies.
DPR: Vol-0: Executive Summary Page 23 Kirthai H.E. Project Stage-II (930 MW) Methodology
As the height of the proposed dam is more than 30m, the dam is classified as high dam and design flood for fixing the spillway capacity will be Probable Maximum Flood (PMF).
The Kirthai Hydro Electric Project Stage-II dam is proposed approximately 13 km downstream of the proposed Kirthai Hydro Electric Project Stage-I dam site. The catchment area of Kirthai Hydro Electric Project Stage-II is 9987 sq.km and catchment area of Kirthai Hydro Electric Project Stage-I is 8530 sq.km respectively. The design flood for the Kirthai stage-II project is computed in two steps. The PMF hydrograph of Kirthai stage-I is routed up to
DPR: Vol-0: Executive Summary Page 24 Kirthai H.E. Project Stage -II (930 MW)
Kirthai stage II and the contribution of intermediate catchment area between two projects is added to arrive at needed PMF hydrograph of Kirthai Stage-II project. The PMF of the Project is calculated as 9600 cumec.
Figure 2 PMF Hydrograph at KHEP-II Dam Site
Sedimentation Studies:
No site specific data is available. However, sediment data has been observed by CWC in the basin at the sites mentioned below in Table 6 along with periods of data availability.
Table 6 Sediment data observed by CWC at various sites in the basin S.No. Site Stream CA(sq.km) Period
1 Tandi Bhaga 1530 1977-78 to 2014-15 2 Ghousal Chandra 2490 1978-79 to 2014-15 3 Benzwar Chenab 10687 1972-73 to 2002-03 4 Tillar Marasudar 2800 1968-69 to 1994-95 5 Sirshi -do- 3335 1968-69 to 1994-95 6 Kuriya -do- 3960 1969-70 to 1989-90 7 Premnagar Chenab 15490 1968-70 to 2014-15
DPR: Vol-0: Executive Summary Page 25 Kirthai H.E. Project Stage-II (930 MW) S.No. Site Stream CA(sq.km) Period
8 Dhamkund -do- 18750 1968-69 to 2014-15 9 Akhnoor -do- 21808 1971-72 to 2014-15 10 Jammur Tawi 2168 1977-78 to 2014-15 Tawi
Analysis of sediment data
After analysis of sediment data, the average annual sediment rate of sites have been worked out, which is given in Table 7 below. Benzawar site is located quite close to this project site where average annual sediment rate, based on observed data of 30 years, has been computed as 0.8625 mm/yr. Since, Kirthai H.E. Project (stage-I) has been planned for a sediment rate of 1.072 mm/yr, the same rate has been used for Kirthai HEP-II also for computation of sediment volumes for various time horizons.
Table 7 Average Annual sediment rate at different sites (without bed load) S.No Name sites Average annual sediment rate (mm/yr) 1 Tandi 0.249 2 Ghousal 0.320 3 Gulbargah 0.599 4 Benzawar 0.8625 5 Tillar 0.301 6 Sirshi 0.677 7 Kuriya 0.63 8 Prenagar 0.974 9 Dhamkund 1.304 10 Akhnoor 0.751 11 Jammu 1.120 Estimation of New Zero Elevation and Revised Capacities using Empirical Area-Reduction Method.
Kirthai Hydro Electric Project Stage -II is downstream of Kirthai H.E. project stage-I. As per MOWR guidelines, only existing or under construction projects
DPR: Vol-0: Executive Summary Page 26 Kirthai H.E. Project Stage-II (930 MW) are to be considered as trapping sediment on the u/s of a dam under planning. However, as per BIS code, projects having same priority as the projects under study may be considered as trapping the sediment. Accordingly, sedimentation studies of Kirthai-II dam have been carried out considering both the scenarios, i.e. with and without Kirthai-I HE Project.
Case-A-Entire catchment upto Kirthai-II contributing to the sediment inflow (without Kirthai-I project)
Case-B- Kirthai-I is trapping sediment and balance is coming to Kirthai-II. New Zero elevation after 70 years of sedimentation works out to 1746.3 m in Case- A and 1741.4m in Case-B and the same are recommended for design purposes.
1.19. Power Potential Studies
Input Parameters for Study
Studies for assessment of power benefits have been carried out by Central Electricity Authority (CEA), New Delhi taking into account the Environment Flows as well as without Environment Flows for which flow data is available. The following parameters have been considered for the studies:
Table 8 Parameters considered for power potential studies Main Power Dam toe Power House House Hydrological June to May June to May Year Maximum permissible 1764 m 1764 m Full Reservoir Level (FRL) Minimum Draw Down 1750.75 m 1750.75 m Level (MDDL) Head losses in WCS 3% 3% Average Tail 1527.5 m From EL 1656.0 m Water Level (Constant) to EL 1658.3m. Average Gross Head 232.08 m 103.04 m Average Net Head 225.1 m 99.95 m Main Power Dam toe Power House House Overall TG Efficiency 92% (Constant) 92% (Constant)
DPR: Vol-0: Executive Summary Page 27 Kirthai H.E. Project Stage-II (930 MW) Dependability Criteria 90% 90% Selection of FRL & MDDL
Kirthai Stage-II is located immediately downstream of the Kirthai Stage-I. Therefore, dam height for Kirthai Stage-II would be governed by tail water level of the upstream stage viz. EL-1784m. However, in order to avoid submergence of fertile areas of Padder Valley, it has been decided to restrict the dam height corresponding to FRL as EL 1764m. As such, the FRL for the Kirthai Stage-II HE Project has been selected as 1764m.
Minimum mean discharge (MMD) for project has been worked out as 58.22 cumecs .Based on the availability of the above flows and Environment Flows of 10.98 cumecs, weekly operation of the plant has been carried out taking into consideration volume restrictions as per Annex-D of the Indus Water Treaty. The permissible Pondage, as per provisions of the Treaty, would be 18.54 MCM i.e. twice the Pondage required for firm power however Pondage of 17 MCM is being proposed for Kirthai-II.
From the area-capacity characteristics of the reservoir it is observed that based on the above Weekly Pondage requirement of 17 MCM, MDDL for the project would work out as 1750.75 m.
Firm Power & Installed Capacity
As per the Treaty, Firm Power means “the hydro-electric power corresponding to the minimum mean discharge at the site of a plant”. Based on the minimum mean discharge of 58.22 cumecs available at Kirthai-II, the Firm Power of the project, as per the Treaty, works out as about 118.80 MW.
Power Output and Energy Potential for ROR project is proportional to the natural inflow pattern. Energy Potential of Kirthai Hydro Electric Project StageII has been worked out on 10-daily basis for the entire study period corresponding to FRL-1764 m and MDDL-1750.75. Results of the studies are summarized in below:
DPR: Vol-0: Executive Summary Page 28 Kirthai H.E. Project Stage-II (930 MW) Table 9 Unrestricted Annual Energy Potential S.No. Year Unrestricted S.No. Year Unrestricted Annual Energy Annual Energy Potential (MU) Potential (MU) 1 1967-68 6170.06 23 1989-90 7988.79 2 1968-69 7935.22 24 1990-91 7688.05 3 1969-70 6287.18 25 1991-92 7288.71 4 1970-71 5562.58 26 1992-93 6492.85 5 1971-72 5140.6 27 1993-94 6298.09 6 1972-73 6167.84 28 1994-95 5574.1 7 1973-74 8290.94 29 1995-96 6483.96 8 1974-75 5004.11 30 1996-97 5573.83 9 1975-76 7251.5 31 1997-98 4964.44 10 1976-77 6270.6 32 1998-99 7074.58 11 1977-78 7637.3 33 1999- 7227.6 12 1978-79 8214.22 34 20002000- 6368.12 01 13 1979-80 7045.18 35 2001-02 6652.34 14 1980-81 7191 36 2002-03 7840.51 15 1981-82 6960.61 37 2003-04 6783.27 16 1982-83 6702.05 38 2004-05 5171.14 17 1983-84 7800.38 39 2005-06 7252.87 18 1984-85 6644.96 40 2006-07 6581.23 19 1985-86 6719.67 41 2007-08 5115.02 20 1986-87 7302.63 42 2008-09 5689.64 21 1987-88 7637.21 43 2009-10 5968.14 22 1988-89 8096.24 Maximum 8290.94 MU (1973-74) Minimum 4964.44 MU (1997-98) Average 6700.22 MU It is seen from the results of the studies that unrestricted annual energy potential at Kirthai Hydro Electric Project Stage-II site varies from a maximum of 8291 MU (Year 1973-74) to a minimum of 4964 MU (Year 1997-98). The average annual energy potential has been estimated as 6700 MU.
The pattern of annual and lean period unrestricted energy potential in all the years is presented in Graph-I.
DPR: Vol-0: Executive Summary Page 29 Kirthai H.E. Project Stage-II (930 MW)
Selection of 90% Dependable Year
Power Output and Energy Potential for ROR project is proportional to the natural inflow pattern. As such, corresponding to each alternative dam height scenario, the 90% dependable year would remain the same. Therefore, for selection of 90% dependable year for Kirthai H.E. Project Stage-II, the unrestricted annual energy potential from the project corresponding to entire flow period of 43 years has been arranged in descending order as given below:
Table 10 Selection of 90% Dependable Year S. Year Unrestricted S. Year Unrestricted No. Energy No. Energy Potential (MU) Potential (MU) 1 1973-74 8290.94 23 2001-02 6652.34 2 1978-79 8214.22 24 1984-85 6644.96 3 1988-89 8096.24 25 2006-07 6581.23 4 1989-90 7988.79 26 1992-93 6492.85 5 1968-69 7935.22 27 1995-96 6483.96 6 2002-03 7840.51 28 2000-01 6368.12 7 1983-84 7800.38 29 1993-94 6298.09 8 1990-91 7688.05 30 1969-70 6287.18 S. Year Unrestricted S. Year Unrestricted No. Energy No. Energy Potential (MU) Potential (MU)
DPR: Vol-0: Executive Summary Page 30 Kirthai H.E. Project Stage-II (930 MW) 9 1977-78 7637.30 31 1976-77 6270.60 10 1987-88 7637.21 32 1967-68 6170.06 11 1986-87 7302.63 33 1972-73 6167.84 12 1991-92 7288.71 34 2009-10 5968.14 13 2005-06 7252.87 35 2008-09 5689.64 14 1975-76 7251.50 36 1994-95 5574.10 15 1999-2000 7227.60 37 1996-97 5573.83 16 1980-81 7191.00 38 1970-71 5562.58 17 1998-99 7074.58 39 2004-05 5171.14 18 1979-80 7045.18 40 1971-72 5140.60 19 1981-82 6960.61 41 2007-08 5115.02 20 2003-04 6783.27 42 1974-75 5004.11 21 1985-86 6719.67 43 1997-98 4964.44 22 1982-83 6702.05 90% Dependable Year = (n+1)*0.9 = 39.60 say 40th Year viz. 1971-72 From above table, it is seen that the year 1971-72 would constitute 90% dependable year. The unrestricted energy potential in 90% dependable year is 5140.60 MU.
Environment Releases
In absence of any specific study relating to the Environment releases, the same have been proposed by CEA as under in their studies: Table 11 Environment releases Monsoon Period - 30% of the flow during the month (June to Sept.) Non-monsoon Period - 20% of the average flow during Dec. to (Oct. to May) Mar. in 90% dependable year. Based on the above, the net flows have been worked out during 90% dependable year and utilized for carrying out power potential studies have been carried out for the project
Selection of Unit Size
The Main Power House is envisaged for operation as a peaking Station. For selection of the unit size at the Main Power House, alternative unit sizes of 84 MW, 105 MW and 140 MW have been considered. However, the unit size of 140 MW has been proposed for the Main Power House since transportation of the same to the site is unlikely to impose constraints. The smaller size units are
DPR: Vol-0: Executive Summary Page 31 Kirthai H.E. Project Stage-II (930 MW) likely to result in increased cost of civil works as well as E&M equipment. Accordingly an installation of 6 units of 140 MW each is proposed at Kirthai Hydro Electric Project Stage -II main power house.
With the above installation, the total discharge requirements from reservoir for peaking would be about 413.47 cumecs and the unit discharge would be around 69 cumecs for main power house.
Further, the Dam Power House (to be located close to the dam site) has been envisaged for operation as a Base Load Station and would be operated in order to optimally utilize the Environment releases from the dam for power generation. Based on the pattern of the power generation it is proposed to have 2 units of 10 MW each and another 2 units of 35 MW each at the Dam Power House.
Conclusion
Summary of the power potential studies is given below:
Table 12 Summary of the power potential studies Main Power Dam House Power House Full Reservoir Level (FRL) EL 1764.00 m EL 1764.00 m Minimum Draw Down EL 1750.75 m EL 1750.75 m Level (MDDL) Pondage between FRL & 17 MCM 17 MCM MDDL Head losses in Water 3% 3% Conductor System Tail Water Level EL 1527.5 m From EL 1656.0m to (Constant) EL 1658.3m. Average Gross Head 232.08 m 103.04 m Average Net Head 225.1 m 99.95 m Main Power Dam House Power House Design Discharge 413.47 cumec 99.71 cumec Installed Capacity 840 MW 90 MW Unit Size 140 MW 2x 10 + 2x35 MW Unit Discharge 68.91 cumec Unit Discharge Size (cumec) 10 MW 11.1
DPR: Vol-0: Executive Summary Page 32 Kirthai H.E. Project Stage-II (930 MW)
35 MW 38.8 Overall TG Efficiency 92% (Constant) 92% (Constant) Annual Energy in 90% Dep. 3159.72 MU 307.19 MU year Design Energy 3055.89 MU 296.17 MU 1.20. Land and Population Affected by the Project:
Kirthai Hydro Electric Project Stage-II is a run of river scheme and it has pondage of 17MCM only. Reservoir area of the project is only 2.25 sq.km and length of reservoir is about 9.8 km. Due to construction of this project some portion of existing Kishtwar - Gulabgarh- Sansari road from dam site to Kirthai village is likely to be submerged. The total length of existing road under submergence is about 4.5km from Dam site to Kirthai. The tail end of the existing road under submergence will be about 0.5 km downstream of Village Kirthai JKSPDC in association with BRO is conducting survey for realignment of the submerged road. Overall land requirement for the project is 225.25 ha out of which 142.25 ha is forest land, 40.00 ha is govt. land and 43.00 ha is private land. The land under submergence of the project is 140.00 ha out of which 70.00 ha is forest land, 33.00 ha is govt. land and 37.00 ha is private land. The breakup of land required including submergence area, land in respect of different project components, colonies and offices, road, muck disposal area and borrow / quarry area is given below in table .
Table 13 Land Requirement of Submergence and Project Component Sr. Component Area of Land, ha Total, ha No. Forest Govt. Private 1 Submergence 70.00 33.00 37.00 140.00 2 Project Components 24.00 - - 24.00 Sr. Component Area of Land, ha Total, ha No. Forest Govt. Private 3 Quarry Sites 18.40 - - 18.40 4 Muck Disposal Sites 12.85 - - 12.85 5 Colony area - 4.00 4.00 8.00 6 Batching plant/ store 2.0 3.00 1.00 6.00 / steel yard 7 Road / Access roads 15.00 - 1.00 16.00
DPR: Vol-0: Executive Summary Page 33 Kirthai H.E. Project Stage-II (930 MW) Total 142.25 40.00 43.00 225.25 Private land requirement for the project is 43 ha. The FRL of the project has been fixed in such a way that there is a minimum displacement of the people and loss of agriculture land. A reconnaissance survey of the area covering 10 km aerial radius from the dam axis has been conducted and it is found that within the aerial radius of 10 km, 12 villages exist, out of which only 2 villages shall be partially affected. Kirthai and Liae villages will be partially affected by the project. The number of the project affected families to be displaced shall be about 5 and these are the families whose house is near to the river.
1.21. Environmental Aspects
As per the available information, there is no protected area i.e. National Parks, Wildlife Sanctuaries or similar eco-sensitive zones within the project area. JKSPDC is conducting EIA & EMP studies. R/R plan for Kirthai-II H.E. Project will be prepared based on National Rehabilitation and Resettlement Act, 2013. All affected landowners will be entitled to a combination of compensation package and resettlement assistance, depending upon the nature of ownership of their land and the scope of impacts. Assistance and other support to the affected families and people will be provided so that they can regain their previous standard of living, even improve if possible, within a reasonable transition period. Steps will be taken to improve overall quality of life of affected population through better infrastructure, medical and educational facilities etc.
Affected Families will be resettled to a new location. New Resettlement sites shall be finalized by the Project authorities in consultation with state government and affected families and it will be developed with all the basic infrastructural facilities well before the filling of reservoir.
Social Impact Assessment (SIA) of project if required will be conducted at preconstruction stage as per Rehabilitation and Resettlement Act, 2013.
Environmental Management Plan (EMP) enumerating the set of measures to be adopted to minimize the adverse impacts will be prepared. The most reliable way to ensure the implementation of EMP is to integrate the management measures in the overall project planning, designing, construction and operation
DPR: Vol-0: Executive Summary Page 34 Kirthai H.E. Project Stage-II (930 MW) phases. Based on the predicted environmental impacts, appropriate environmental management plans will be formulated before the start of the work for construction of the project. The compensatory afforestation, Green Belt Development, Management of the muck generated, Solid waste management, Fisheries Management plan, Willdlife and Biodiversity Management plan, Disaster Management plan ,Environmental Monitoring plan, Catchment Area treatment plan will be prepared.
1.22. Project Headquarters and Residential Accommodation at Project Site
The main office complexe cum project headquarter, and residential colony of the project is proposed in Kadhal area near the terrace of Kirthai village. For workshops and other non residential buildings, land of Kadhal and surrounding area will be utilized. Kadhal is located about 1 km above the existing Kishtwar - Gulabgarh road near Village Kirthai. Kadhal is about 5km from dam site and suitable land is available at the said location. The proposed Residential Complex at Kadhal on left bank terrace of River Chenab will accommodate different types of dwelling units for the officers and staff. The provision for school, dispensary, field hostels, bank, post office, telephone exchange and CISF office etc has also been kept .Some of the semi permanent buildings like, stores, steel yard, mechanical and electrical workshop, fabrication workshop, cement store, equipment yard, hydro mechanical workshop, electromechanical workshop, precast yard etc are proposed near Dam and Power house site.
Both, temporary and permanent types of residential buildings have been planned. About eight hectare of total land is proposed to be acquired for construction of residential colony, field hostel, guest houses, parks etc in Kadhal. Field hostel is also proposed near dam site and power house site. The proposed Khadal colony will be able to accommodate the staff for whole of the project including dam & power house. During construction two temporary colonies are also proposed for the labourers and artisans, one near dam site another near power house site. These colonies will be dismantled after completion of the Project. The staff for O&M purpose will stay in permanent colony at Kadhal after completion of the project. The field hostel at dam site
DPR: Vol-0: Executive Summary Page 35 Kirthai H.E. Project Stage-II (930 MW) and power house site will continue to function even after commissioning of the project for visiting staff on duty.
1.23. Project Set Up
The construction organization for implementation of Kirthai Hydro Electric Project Stage-II is proposed to be headed by the officer of the rank of General Manager. The General Manager would be assisted by three Chief Engineers i,e Chief Engineer, Civil, Chief Engineer, Electro-Mechanical and Chief Engineer Human Resources Management. Chief Engineer, Civil will look after the Civil works of River Diversion, Concrete Dam, Power House and infrastructure. Chief Engineer, Electro-Mechanical will look after the works of Workshop, Mechanical, Hydro-Mechanical and Electro Mechanical. Chief Engineer Human Resources Management will look after the works of General Administration, Procurement, Stores Logistics, Liasioning, Finance and Vigilance. Accordingly, the manpower requirement for execution of Works has been worked out and distributed into the ten dedicated teams/ modules. It is proposed to organize the works at site in the following ten (10) modules.
Module 1 – Procurement, Stores and Logistics
Module 2 – Workshop, Mechanical and Hydro-Mechanical Works
Module 3 – Power House and Infrastructure
Module 4 – Concrete Dam
Module 5 – River Diversion and Works
Module 6 – Project Monitoring
Module 7 – Liasioning and Administration
Module 8 – Finance
Module 9–Electro Mechanical Work
Module 10– Vigilance
DPR: Vol-0: Executive Summary Page 36 Kirthai H.E. Project Stage-II (930 MW) 1.24. Evacuation of Power to be generated at Kirthai Hydro Electric Project Stage-II.
The evacuation of power from Chenab basin project in Jammu and Kashmir was discussed and agreed in the 31st Standing Committee Meeting (SCM) on Power System Planning of Northern Region (NR) held on 2nd January 2013 and subsequently in the 32nd Standing Committee Meeting of Power System Planning of NR held on 31st August 2013. For Kirthai Hydro Electric Project Stage-II the following transmission system was agreed as a part of high capacity common corridor – I for hydropower projects located in Chenab basin, J&K.
(i) 400 kV D/C (Quad HTLS Conductor – Equivalent to about 3000 MW) line from Kirthai Hydro Electric Project Stage-II to Kishtwar Pooling station.
(ii) Termination of 400 kV D/C (Triple HTLS Conductor –Equivalent to about 1500MW) line from Reoli Dugli HEP (HP) at generation switchyard of Kirthai Hydro Electric Project Stage-II.
Switchyard capacity of Kirthai Hydro Electric Project Stage-II must be able to handle about 3000 MW power generated by the generation projects located in upstream of the Kirthai II generation project. It is proposed that the GIS switchyard equipment and XLPE cables provided may be designed for carrying 4000 Amps current. 400 kV, 125 MVAR Bus Reactor is proposed. From the proposed Kishtwar pooling station the power of Kirthai Hydro Electric Project Stage-II will be evacuated to Kishenpur grid.
1.25. Construction Programme
The Project is scheduled to be completed in 60 months after getting all the statuary clearances and Financial Closure. The infrastructure facilities shall be developed concurrently with the process of obtaining various Government clearances.
1.26. Interstate / International Aspects
Kirthai Hydro Electric Project Stage-II does not involve any interstate aspect.
DPR: Vol-0: Executive Summary Page 37 Kirthai H.E. Project Stage-II (930 MW) The river Chenab, on which Kirthai Hydro Electric Project Stage-II is envisaged for execution, crosses international boundary between India and Pakistan. It is Western River of Indus Basinand falls in the purview of Indus Water Treaty 1960.
Since the Kirthai H.E. Project is proposed on river Chenab which is a Western river, Water Resources Project on this river is guided by the Annexure “D” and Annexure “E” of the Indus water treaty which deals with the provisions regarding generation of H.E. Power and storage of water by India on the Western rivers. Indus Water Treaty has XII Articles with VIII Annexures.
Kirthai Hydro Power Project Stage-II is a run of river scheme and is within the provision of Indus Water Treaty. It is planned and designed as per Article III Annexure D and Annexure E of the Treaty.
Minimum mean discharge (MMD) for the Project is calculated as per Annex.-D of the Treaty as under:
“The average discharge for each 10-day period (1st to 10th, 11th to 20th and 21st to the end of the month) will be worked out for each year for which discharge data, whether observed or estimated, are proposed to be studied for purposes of design. The mean of the yearly values for each 10-day period will then be worked out. The lowest of the mean values thus obtained will be taken as the minimum mean discharge.”
Based on the above, average flows have been obtained for each 10-daily period and minimum of these flows represents MMD which has been worked out as 58.22 cumecs.
Firm Power of the Project has also been worked out as per Treaty.
As per the Treaty, Firm Power means “the hydro-electric power corresponding to the minimum mean discharge at the site of a plant”. Based on the minimum mean discharge of 58.22 cumecs available at Kirthai-II, the Firm Power of the project, as per the Treaty, works out as about 118.80 MW.
DPR: Vol-0: Executive Summary Page 38 Kirthai H.E. Project Stage-II (930 MW) Based on the availability of the Minimum mean discharge (MMD) and Environment Flows of 10.98 cumecs, weekly operation of the plant will be carried out taking into consideration volume restrictions imposed as per Paragraph 15 of Part-3 of Annex-D of the Treaty.
As per Annex-D of the Treaty, the works connected with run-of-river Plant on Chenab river at a site above Ramban are to be so operated that
(i) The volume of water received in the river upstream of the Plant, during anyperiod of seven consecutive days, shall be delivered into the river below the Plant during the same seven day period, and
(ii) In any one period of 24 hrs. within that seven-day period, the volume delivered into the river below the plant shall not be less than 50%, and not more than 130% of the volume received above the plant during the same 24 hour period.
(iii) The period of 24 hours shall commence at 8 AM daily and the period ofseven consecutive days shall commence at 8 AM on every Saturday.
DPR: Vol-0: Executive Summary Page 39
Kirthai H.E. Project Stage
Permissible Pondage, as per provisions of the Treaty, would be 18.54 MCM i.e. twice the Pondage required for firm power however a Pondage of 17 MCM is being proposed for Kirthai-II. Based on the above Weekly Pondage requirement of 17 MCM, MDDL for the Project has been worked out as 1750.75 m. The design of dam has been carried out as per Annexure D of Paragraph 8 of Part- 3 of treaty.
1.27. Cost Estimate
The total cost of the Project is estimated to Rs 5158.00 Crore at August, 2015 Price Level.
The abstract of the project (unit wise) is as under:-
Cost of the Project
(` in lakhs) Unit Cost
Unit -I Head works 175599.04 Unit-III Power Plant & Appurtenant Works 340218.96
Total Project Cost : 515818.00
1.28. Cost of Energy Generation
The cost of energy generation in a 90% dependable year at 8% discount rate works out to be 2.06/ unit. In addition, cost of energy for 10 % and 12 % discount rates have been worked out which are 2.51/ unit and 3.00/unit respectively.