Annexure - 2

Annexure - 3

Annexure - 4

Present Status of Fish Fauna in Satluj River in the Reach of Karcham Wangtoo HEP – Extracts from Relevant Approved Documents

Following documents were referred to explore the possibility of presence of fish fauna in Satluj river in the project area:

i. EIA Study of Karcham Wangtoo HEP carried out by NEERI, Nagpur, appraised by EAC and EC granted by MoEF&CC in 2005 ii. EIA Study of Shontong Karcham HEP carried out by WAPCOS, appraised by EAC and EC granted by MoEF&CC. Shongtong Karcham is an immediate upstream project. iii. Satluj basin study carried out by ICFRE, discussed in EAC during its meetings held on February 2016, January 2019, December 2019 and December 2020.

Relevant extracts are discussed below.

EIA Study Report of Karcham Wangtoo (2005)

EIA study of Karcham Wangtoo HEP under the baseline chapter on fish fauna has recorded that,

“In view of construction of the dam after confluence point of the river Baspa with the Sutlej at Karcham, a reservoir covering both the rivers at upstream of the dam will be formed. The suspended solids in the Sutlej river water are substantially high as compared to the Baspa river water. While the brown and rainbow trouts are normally grown in the Baspa, fishes are rarely present in the river Sutlej and fishing is not practised in this river. There are no fishermen along this river upto Rampur in downstream……………….. it is believed by the State Fisheries Department that a fair quantity of rainbow trout, brown trout, mahaseer and Schizothorax sp. are available in this river. Trouts are mostly available near the confluence of Baspa.

An attempt was made to collect free-floating aquatic macro-invertebrates through plankton net in the upstream and downstream areas of the proposed dam site. However, no macrofauna were arrested in the net. In view of rocky bottom of the river bed and high flow of the river water, sediment samples could not be collected. In general, invertebrates population is not expected much in such kind of habitat. However, there is a possibility of the presence of certain invertebrates and small fishes taking shelter in the crevices at the bottom. As per advice of the Director-cum- Warden of Fisheries, H.P., adequate provision has been made under Environment Management and Monitoring” for trout seed farming”.

EIA Study Report of Shongtong Karcham (2011)

EIA study report of Shortong HEP, immediate upstream project has recorded at section 5.3.2.1 that, The Shongtong-Karchham hydroelectric project is located between the stretch of Powari and Ralli villages. This stretch (1,800 - 2,000 m above m.s.l.) was surveyed for the presence of fish and fisheries. This high altitude stretch (1,800 – 2,000 m above m.s.l.) does not support the development of fisheries. Only one Botia specie has been observed in the isolated pools beside the main Satluj River near Speilo, which is about 25Kms upstream of the Project barrage. The other two (Salmo trutta fario; Salmo gairdneri gairdneri) are exotic which have been introduced in the Satluj River by the Department of Fisheries, GoHP, which can survive in this very cold water.

Draft Satluj Basin Study Report

Satluj Basin Study at Section 5.2, Ichthyofauna (Fish Fauna) has recorded that,

“After the intensive sampling at different locations, a few fish species were recorded. The fish population is highly fragmented in the Sutlej main course. Most of the fishes were recorded in the tributaries or near the confluence points such as Behna Khad, Nogli Khad, Manglad Khad, and Ghanvi Khad. The predominant species comprised of Schizothorax spp. However, at certain locations Garra spp. were also recorded. At higher altitudes, the main species recorded is loaches Triyplophysa spp which are distributed from Kaza to Losar in Spiti river. The juveniles of Schizothorax and Barilius spp. were recorded in the shallow zones of most of the tributaries. Gravid male specimens of snow trout were frequently found at Tattapani and Ghanvi Khad which indicates the breeding ground of the snow trout and Barilius. The main fish species recorded so far are given in the Table 5.6. Presence of fish larvae in almost all tributaries indicated the conducive habitat for the spawning, feeding and larval development. Occurrence of gravid/mature snow trout in the certain tributaries indicated the favourable environmental condition for the growth and survival of the indigenous coldwater fish species. Breeding season might be between August to mid- September Table 5.7.

In Table 5.7, against Karcham Dam, in column giving status of presence or absence of fish fauna as “Absent”.

EAC during its meeting of January 2019 has further noted the following, “Occurrence of Golden Mahseer in lower stretch of Sutlej river has been reported by Department of Zoology, Punjab University, Chandigarh / Department of Fisheries, Punjab Govt. The presence/absence of Golden Mahseer in lower stretch of Sutlej river (i.e. Koldam reservoir and its upstream) should be rechecked and documented appropriately in the study report. The presence/absence of two endemic fish species reported from Spiti valley may also be taken into account appropriately in the study report.”

Response was discussed in EAC meeting of December 2019, which mentioned the following:

i. Mahseer was not recorded during present investigation from the study area of Satluj river ii. During the present investigation two species namely, Schizothorax richardsonii and Triplophysa stoliczkayi were recorded from the study area of Spiti Valley.

The response was provided with references and was accepted by EAC. Conclusion:

Based on the above discussion and references, it is concluded that fish population reported in river Satluj, in upper reaches is very scanty mainly due to the fact that the flow regime in river Satluj is very turbulent with high silt load and this makes the upper reaches, difficult habitats for fish. Fish fauna which is spotted in upper reaches is confined to tributaries. Annexure - 5A

Annexure - 5B

Annexure - 5C

Annexure - 6 Annexure - 7

Table 4.52 recorded during walkthrough census study Sl. Common Name Scientific Name Sangla Tapri Nichar Sarahan Sholtu Choling Karcham Wangtoo No. Dominance Census Dominance Census Dominance Census Dominance Census Dominance Census Dominance Census Dominance Census Dominance Census Index Index Index Index Index Index Index Index Index Index Index Index Index Index Index Index 1 Spotbilled duck Anas poecilorhyncha ------52.63 40.00

2 Blue rock pigeon Columba livia ------6.25 2.00 - - 39.47 30.00

3 Rufous turtle dove Streptopelia orientalis ------3.13 4.00 ------

4 Slatyheaded parakeet Psittacula himalayana ------20.42 20.00 ------

5 Bluethroated barbet Megalaima asiatica ------2.04 2.00 ------

6 House martin Delichon urbica 59.70 80.00 ------

7 Yellowbilled blue flavirostris ------10.20 10.00 ------

8 Yellowbilled Pyrrhocorax graculus - - - - 20.00 2.00 ------

9 splendens 1.49 2.00 ------9.38 12.00 12.50 2.00 - - - -

10 Jungle crow Corvus macrorhynchos 8.96 12.00 66.66 20.00 40.00 4.00 - - 18.75 24.00 - - 7.69 2.00 5.27 4.00

11 Whitecheeked bulbul Pycnonotus leucogenys ------2.04 2.00 - - - - 15.38 4.00 - -

12 Redheaded babbler Stachyris ruficeps 5.97 8.00 ------

13 Brown hill warbler Prinia criniger 1.49 2.00 ------

14 Pallas's leaf warbler Phylloscopus proregulus ------9.38 12.00 - - 30.79 8.00 - -

15 Goldcrest Regulus regulus ------61.22 60.00 ------

16 Blue chat Erithacus brunneus ------1.56 2.00 ------

17 Brown rock chat Cercomela fusca ------2.04 2.00 - - 62.50 20.00 - - - -

18 Whitecapped redstart or River chat Chaimarrornis leucocephalus ------1.56 2.00 ------

19 Blackbird Turdus merula 1.49 2.00 ------

20 Mistle thrush Turdus viscivorus ------15.38 4.00 - -

21 Brown dipper Cinclus pallasii ------

22 Redheaded tit Aegithalos concinnus ------

23 Brown rock pipit Anthus similis 1.49 2.00 - - - - 2.04 2.00 ------

24 White wagtail Motacilla alba 2.99 4.00 6.67 2.00 ------7.69 2.00 2.63 2.00

25 Yellowvented flowerpecker Dicaeum chrysorrheum ------1.56 2.00 ------

26 House sparrow Passer domesticus 2.99 4.00 26.67 8.00 20.00 2.00 - - 54.68 70.00 18.75 6.00 - - - -

27 Allied grosbeak Coccothraustes affinis 11.94 16.00 ------

28 Spottedwinged grosbeak Coccothraustes melanozanthos - - - - 20.00 2.00 ------

29 Himalayan greenfinch Carduelis spinoides ------15.38 4.00 - -

30 Orange bullfinch Pyrrhula aurantiaca 1.49 2.00 ------

31 Crested bunting Melophus lathami ------7.69 2.00 - -

4-118 Table 4.53 Dominance and Diversity of Common Birds in the Study Area Species Total Sl. Most Dominant Dominance Species Site Diversity Density No. Species (A) Index of (A) Richness Index (per km2) 1 Sangla House martin 59.70 2.38 11 134

2 Tapri Jungle crow 66.66 0.74 3 30

3 Nichar Jungle crow 40.00 1.86 4 10

4 Sarahan Goldcrest 61.22 1.54 7 98

5 Sholtu House sparrow 54.68 1.68 8 128

6 Choling Brown rock chat 62.50 1.08 4 32

7 Karcham Pallas's leaf warbler 30.79 2.34 7 26

8 Wangtoo Spotbilled duck 52.63 0.82 4 76

4-119 Table 4.54 List of Wildlife Found in the Study Area Sl. Common name Scientific name No. Mammals 1 Leopard* Panthera pardus 2 Snow leopard* Panthera uncia 3 Leopard-Cat* Felis bengalensis 4 Jungle cat Felis chaus 5 Himalayan black bear Selenarctos thibetanus 6 Indian fox Vulpes bengalensis 7 Himalayan yellowthroated marten Martes flavigula 8 Bharal Pseudois nayaur 9 Goral Nemorhaedus goral 10 Serow Capricornis sumatraensis 11 Musk deer* Moschus moschiferus 12 Rhesus macaque Macaca mulatta 13 Common langur Semnopithecus entellus Birds 14 Spotbilled duck** Anas poecilorhyncha 15 Golden eagle Aquila chrysaetos 16 Himalayan griffon Gyps himalayensis 17 Chukar partridge Alectoris chukar 18 Grey partridge Francolinus pondicerianus 19 Monal pheasant* Lophophorus impejunus 20 Kaleej pheasant Lophura leucomelana 21 Red junglefowl Gallus gallus 22 Koklas pheasant Pucrasia macrolopha 23 Blue rock pigeon** Columba livia 24 Rufous turtle dove** Streptopelia orientalis 25 Slatyheaded parakeet** Psittacula himalayana 26 Himalayan barred owlet Glaucidium cuculoides 27 Bluebearded bee-eater Nyctyornis athertoni 28 Great hill barbet Megalaima virens 29 Bluethroated barbet** Megalaima asiatica 30 Himalayan pied woodpecker Picoides himalayensis 31 House martin** Delichon urbica 32 Hill myna Gracula religiosa 33 Yellowbilled blue magpie** Cissa flavirostris 34 Yellowbilled chough** Pyrrhocorax graculus 35 House crow** Corvus splendens 36 Jungle crow** Corvus macrorhynchos 37 Whitecheeked bulbul** Pycnonotus leucogenys 38 Redvented bulbul Pycnonotus cafer 39 Redheaded babbler** Stachyris ruficeps 40 Brown hill warbler** Prinia criniger

4-120 Sl. Common name Scientific name No. 41 Pallas's leaf warbler** Phylloscopus proregulus 42 Goldcrest** Regulus regulus 43 Blue chat** Erithacus brunneus 44 Brown rock chat** Cercomela fusca 45 Whitecapped redstart or River chat** Chaimarrornis leucocephalus 46 Blue whistling thrush Myiophonus caeruleus 47 Blackbird** Turdus merula 48 Mistle thrush** Turdus viscivorus 49 Brown dipper** Cinclus pallasii 50 Grey tit Parus major 51 Redheaded tit** Aegithalos concinnus 52 Brown rock pipit** Anthus similis 53 White wagtail** Motacilla alba 54 Yellowvented flowerpecker** Dicaeum chrysorrheum 55 House sparrow** Passer domesticus 56 Allied grosbeak** Caccothraustes affinis 57 Spottedwinged grosbeak** Caccothraustes melanozanthos 58 Himalayan greenfinch** Carduelis spinoides 59 Orange bullfinch** Pyrrhula aurantiaca 60 Crested bunting** Melophus lathami Reptiles 61 Ratsnake Ptyas mucosus 62 Common lizard** Agama tuberculata

Source : Divisional Forest Office (Wildlife) Sarahan, Kinnaur District supplemented by NEERI Primary Data of Walkthrough Census

* Included in the Schedule I of Wildlife (Protection) Act, 1972 ** Observed by NEERI team during September 2001

4-121 Annexure - 8

GOVT. OF HIMACHAL PRADESH FOREST DEPARTMENT

WORKING PLAN FOR THE FORESTS OF

KINNAUR FOREST DIVISION (01-04-2019 TO 31-03-2029)

VOLUME-I

BY

DR. CHAMAN LAL RAO (HPFS) W.P.O - CUM -D.F.O. KINNAUR

Under the guidance of

Addl. Pr. CCF Working Plan & Conservator of Forests Settlement, Mandi Working Plan, Mandi Himachal Pradesh Himachal Pradesh i “Save Forests - Save Environment” ii “Save Forests - Save Environment” iii “Save Forests - Save Environment” ANIMALS, BIRDS, REPTILES AND FISH ETC. FOUND IN KINNAUR FOREST DIVISION

English Name Scientific Name Local Name (A)Animals (i)Cats Panther or leopard Panthera pardus, Linnaeus Bagh, baghera Leopard cat, jungle cat Felis bengalensis, Felis Ban bilao, Jangli billi chausGuldensdoedt Syn. Snow leopard Uncia uncia, Schreber Safed bagh (ii)Bears Himalayan black bear Selenarctos thibetanus,Syn. Bhalu Ursus torouatus, G.Cuvier. Brown bear Ursus arctos, Linnaeus Lal bhalu (iii)Dog family Himalayan fox, Tibetan Vulpes bengalensis, Lomri Siar wolfHimalayan jackal,Tibetan wolf ShawCanis Nodgson. (iv)Mongoose Common mongoose Herpestes edwardsi, Neola Geoffroy (v) Weasels Himalayan yellow throatedmarten Martes flavigula, boddaert Chitrala Himalayan weasel Musteres sibirica (vi) Goat & sheep group Himalayan Thar Hemitragus jemlahicus Thar Blue Sheep Pseudois nayaur Bharal (vii) Goat antolope group Goral Nemorhaedus goral Goral, ghurar Serrow Capricornis sumatrensis Serao (viii) Deer group Barking deer Muntiacus muntjak Kakar Musk deer Moschus moschiferus Kastura Sambhar Cervus unicolor, nigar Jarao (ix) Rodents Common Indian Hare Lepus nigricollis Khargosh Large red flying Squirrel Petaurista petaurista Koryal Indian crested porcupine Hystrix indica Sehi Common house rat Rattus rattus, Linn. Chuha House mouse Mus musculus Linneaus Musco Indian gorbille or IndianAntelope rat Tatera indica, Hardwicke ,, Short tailed mole rat Nesokia indica, Gray ,, andHardwicke Himalayan marmot Marmot bobak, Mueller ,, (x) Monkey and Langoors Himalayan langur Presbytis entellus Guni (xi) Insectivores Gray musk shrew Suncus murinus Chuchundar (xii) Bats The allied horse shoe bat Rhinolophus affinis Chamgadar xii “Save Forests - Save Environment” (B) BIRDS (a) GAME BIRDS (i) Pheasants and fowls group Cheer pheasant Catreus wallichii, Cheer Hardwicke Jungle fowl Gallus gallus Jungli murghi MurghiRohinson & Khoss The white crested pheasant Lophura leucomelans Kaleej/ kala murga Latham Koklas, Medium tailed Himalayan Pucrassia macrolopha, Kokla pheasant Lesson Impeyyan or Monal Pheasant Lophophorus impeyanus Monal Western Tragopan Tragopan melanocephalus Jejurana (ii) Partridge and quail group

Button quail Turinix taki, Blyth ,, Jungle bush quail Perdicula asiatica ,, Chakor pertridge Alectoris graeca, meisner Chakor Black Breasted or rain quail Coturnix coromandelica Chinak bater Gemelin Snow partridge Lerwa lerwa. Hodgson Gunguria Black partridge Francolinus francolinus. Kala Titar Linneaus Himalayanor wood partridge Arborophila torqueola Peora Valenciennes Snow cock Tetraogallus tibetanus Ram chakor G.R.Gray (iii) Doves and pigeon group Spotted dove Striptopelia chinensis Chitter fakhta Rufous turtle dove Striptopelia orientalis Ghugti Lathaam Ring Tailed dove Streptopelia decaocto ,, Common green pigeon Treron phoenicopterus Harial Wedge tailed green pigeon Treron apticauda Blue rock pigeon Columba livia. Gamelin Kabutar Pintailed green Treron apicauda. Blyth Malya Snow pigeon Columba leuconota. Vigor Safed Malya (b) NON- GAME BIRDS (i) Crows, king crows, tree pies , Jays and nut crackers Himalayan nut cracker Nucifraga carvocatactes Pathphor Jungle crow Corvus Kawa macrorhynchos,Walger Himalayan red crowned Carrulus glandarius, Lal kanth Linnaeus Red billied blue magpie Kitta erythorphyncha, Lampuchhia Boddaert Himalayan tree pie Dendroecitta ,, fromosea,Swinhoe

xiii “Save Forests - Save Environment” Blue throated lanceolatus, Neel kanth Vigors (ii) Vultures, Eagles, Kites and Falcons Black Hobby falconKastonal Falcon Ictinaetus Cheel malayensis,Tamminck Panish Kite Milvus migrans, Boddaert ,, Brahminy kite Haliaster Indus, Boddaert ,, Golden eagle Aquila chryaetos, Hodgsoni ,, Hawk eagle ,, Tawny eagle ,, Himalayan griffon vulture Gyps himalayensis, Hume Gidh Lammergeier or beards vulture Gypaetus barbatus Linnaeus Gidh King vulture Torgos alyus ,, White backed vulture Gopaetus bengalensis ,, Scavenger vulture Neophron perenopherus ,, (iii) Owls and night jars Himalayan wood owl Strixaluco nivicola, Idnnaus Uloo Scully’s wood owlHorned owl Strixaluco biddhlphi ,, Himalayan batred owl Glaucidium cuculoides ,, Lolng tailed night jar Caprimulgus macrourus _ Franklings night jar Caprimulgus monticolus _ (iv) Thrushes and babblers Whistling thrush Myophoneus caerulens Chilar While throated thrush Garrulax albogularis.Gould ,, Variegated thrush Garrulax varisgatum, ,, Vigors Red backed thrush Garrulax ,, erythrocephalusVigors streaked thrush Garrulax striatus,Vigors ,, Jungle babbler Turodoides striatus ,, (v) Fly catchers Sooty fly catcher Hemochslidon silbrica White browed blue fly catcher Muscicapula surperciliaris White billied blue fly catcher Muscicapula pallipos Blue throated fly catcher Muscicapula Rebecoloides, Vigors

Rufous bellied niltava Niltava sundara (vi) Finches, sparros and buntings Rose finch Carpodacus erythrinus, Tuti Pallas Himalayan gold finch Carduelis carduellis Surja linnaeus Himalayan tree finch Cardelis spinoides, Vigors Surja Common house sparrow Passer domesticus Linnaeus Gauriyya, Chirya Cinnamon tree sparrow Passer rutilans Temminck Gauriyya, Chirya Created bunting Melophus lathanfi, Gray Rather Chirta White capped bunting Eperza stewarti, Blyth (vii) Wood Peckers, Tree Creepers and Barbets xiv “Save Forests - Save Environment” Scaly bellied wood pecker Picus squamatus, Vigors Kathphorwa Himalayan pied wood pecker Cryobates himalayasis ,, Brown fronted pied wood Pecker Dryobates auriceps ,, Himalayan tree creeper Certhia himalayana ,, Himalayan barbet Mogalaima virens, Boddaert Green barbet Megalaima viridis (viii) Birds along water courses White capped red start Chaimarrornis laucocephalus Plumbeous red start Rhyacornis fuliginosus Spotted fork tail Enicurus maculates Himalayan pied king fisher Ceryle lugubris (ix) Others Red vented bulbul Molpastes cafer Bulbul White cheeked bulbul Milpastes leucoganys ,, Yellow cheeked bulbul Macholophus xantogenus Gray tit Paras major Black tit Lophopharrens rufornuchalis Pied bush chat Saxicola caprata Common house swallow Hirundo rustica Parakeet Psittacula himalayana Tota Gray hornbill Dichoceras bicornis Swift Chaetura caudatus Blue bearded bee eater Alcemerops Althertoni Black headed shrike Lanius nigriceps C)REPTIIES (i) Snakes Rat snake Ptyas mucosus, Cope Dhaman Krait Bungarus caeruleus, Daud Krait Indian cobra Naja naja, Schleg Kobra, Nag Himalayan pit viper Ancistrodon Sapp himalayanusGunther (ii) Lizards Common house gecko Himidactylus brooki, Gray Chhipkali Common lizard Agama tuberculata, gray ,, Common Indian monitor Lizard Varanus monitor, Linnaeus ,, (D) FISHES - Barbus tor, Hamilton Mahaseer - Labeao calbasu Kala Bans Rishala Orcinus sinautus Rishala

xv “Save Forests - Save Environment” Annexure - 9 Salient Features of Karcham Wangtoo HE Project

Proposed at the time of EC (approved in TEC) vis a vis salient features actually executed

Particular Proposed at the time of Actually Executed Variance EC (approved in TEC) Location i. State Himachal Pradesh Himachal Pradesh ii. District Kinnaur Kinnaur iii. River Satluj Satluj Hydrology i. Catchment area at dam site 48755 Sq.km 48755 Sq.km ii. Snow catchment 38760 Sq.km 38760 Sq.km Diversion Dam i. Type Concrete Gravity Concrete Gravity ii. Top of dam EL 1813.00m EL 1813.00m iii. Height from deepest 98 m 88 m H= (-) 10.0m foundation level iv. Total length at top 177.80 m 182.0 m (+) 4.20m v. No. of blocks 12 10 vi. Min. river bed lvl. at dam axis El. 1770.00m El. 1778.00m EL. (+) 8.0m vii. Deepest foundation level El. 1715.00m El. 1725.00m viii. Maximum pond level El. 1810.00 m El. 1810.00 m ix. Minimum pond level El. 1799.00 m El. 1799.00 m

1 Intake i. No. of intake bays 4 (Four) 4 (Four) ii. Size of each bay at trash- 18 m (W) x 7.5 m (H) 16 m (W) x 18.5 m (H) clear racks opening iii. Crest level 1786.00 m 1793.00 m iv. Minimum Water Level U/s 1799.0 m 1799.0 m Minor Changes done to minimize v. Discharge through each intake 130.25 Cumecs 130.25 Cumecs the sediment entry into the intake bay vi. Number of intake gates 4 (Four) 4 vii. Size of each gate 6.0m (W) x 5.25m (H) 7.5m (W) x 4.0m (H) viii. Size of intake tunnels 6.0m modified horse shoe 6.0m dia circular shaped Sedimentation Chambers i. Nos. of chambers 4 (Four) 4 (Four) ii. Particle size to be excluded 0.2 mm and above 0.2 mm and above iii. Size of each chamber 505 m (L) x 16.0 m (W) x 28 494 m comprising 424 m (L) x 18.0 Minor changes done for efficient m m (W) x 30.25 m (flow through functioning for the flushing of the depth) + 70 m long transitions silt. iv. Design Discharge 521.25 Cumecs 521.25 Cumecs v. Flushing discharges 104.25 Cumecs 104.25 Cumecs Head Race Tunnel i. Size & Type 10.48m dia circular 10.48m dia circular Length decreases by 275m. ii. Length 17.20 km 16.913 km (concrete lined) iii. Velocity through tunnel 4.83 m 4.83 m iv. Design Discharge 417 Cumecs 417 Cumecs v. Slope 1 : 150 1 : 210.63

2

Surge Shaft i. Type Restricted Orifice Restricted Orifice ii. Diameter 16m upto EL. 1755 m and 27 m from 16m upto 1730 m and EL. 1755.00 m to EL 1852.00 27 m from 1730.00 m to EL 1850.00 m and open pond from EI. Minor changes done due to 1850.0m to EI. actual geology encounter. 1858.0m iii. Bottom elevation El 1667.95 m El 1707.50 m iv. Top elevation El 1852.00 m El 1858.00 m vii. Top Open to sky Open to sky Pressure Shafts

i. No. and type 4 steel lined 4 steel lined Dia (+) 0.25m ii. Diameter 4.75m 5.0 m To facilitate the excavation and iii. Length of penstock 290.50 m P.S. I & IV - erection of liner. 347.4 m each P.S. II & III - L (+) 190.2m 328.7 m each As per the detailed iv. Type of steel for penstock ASTM A-517 Grade-F working/design. liners

3 Machine Hall & Transformer Hall (Power Station Complex) i. Type Underground Underground Changes done at Power House due to ii. Installed capacity 1000 MW (4 x 250 MW) 1000 MW (4 x 250 following reasons (Informed to CEA vide letter no. JKHCL/MD/TEC/09 MW+20% overloading) dated 19.03.2009. iii. Size of machine hall 143 m (L)x 21.0 m (W) x 49.0 m (H) 188 m (L)x 22.0 m (W) (a) Increase in length of erection bay x 52.9 m (H) from 30 m to 47 m is to carry out assembling of two rotors and two iv. Size of transformer hall 143m (L) x 15.5 m (W) x 25 m (H) 161.855m (L)x16 m stators simultaneously for expeditious (W)x22.3 m (H) erection of electro-mechanical 298.73 m 298.43 m equipment. v. Average Gross Head (b) Increase in the centre to centre vi. Net Head 275.93 m (for 417 Cumecs) 269.15 m distance between two units from 22 m to 26.75 m is for accommodating bottom runner removal to minimize time for replacement of runner & other accessories.

(c) Increase in space between unit & erection bay from 11 m to 20.75 m is to provide space for erection of miscellaneous E & M equipment.

(d) Increase in the space between unit and control bay from 11 m to 20 m is to accommodate drainage & dewatering sumps.

(e) Decrease in length of control bay from 25 m to 20 m is 5 m.

The length of Transformer Hall has increased by 19 m for accommodating 2 Nos. Shunt Reactors vii. Size & Length of cable tunnel 528.71m 182.859 m long L (-) 345.85m 5 m (W) × 5.5 m (H) Design optimized.

4

Electro-Mechanical Equipment

i. No. and Type 4 Nos, Francis Turbines 4 Francis Turbines ii. Rating ( Rated Turbine output / 255 MW / 347,000MHP 255.1 MW / 306MW max. continuous output) iii. Maximum/ Minimum Head 303.5 / 258.20 m 303.5 / 249.8 m iv. Design Head 275.93 m 269.15 m v. Design Discharge 104.25 Cumecs 104.25 Cumecs vi. Speed 214.30 rpm 214.30 rpm

D/S Surge Chamber Complex

i. Size 220m (L) x 16.0 m (W) x 42.50 m (H) 220m (L) x 12.5 m (W) x 13.5 m (H) with Surge gallery 10.48 m dia, 485 m long and connecting tunnel 6.5 m D Shaped, 244 m Due to geological long. consideration. ii. Maximum Surge level El 1523.065m El 1532.29 iii. Minimum Surge level El 1497.812m El 1502.02m iv. Max. Tail Water level El 1516.25m El 1513.67

Tail Race Tunnel

i. Size & Type 10.48m dia, Circular shape 10.48m dia, Circular 909.0m ii. Length 1254.82 m (Without Due to geological consideration. outfall Structure)

5

iii. Invert level of tailrace tunnel at 1505.00m 1502.50m outfall iv. Normal water level in river 1508.00 m 1506 m Satluj Power Generation

i. Installed capacity 1000 MW 1000 MW+ 20 % overloading ii. Annual generation

- 90% dependable year 4559.77MU Presently 4130.98 MU (with 7.38 Cumecs as environmental releases ) .

6

Annexure - 10

Annexure - 11

Annexure - 12

Annexure - 13