Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

FORM – IA (Only for construction projects listed under item 8 of the schedule)

CHECKLIST OF ENVIRONMENTAL IMPACTS (Project proponents are required to provide full information and wherever necessary attach explanatory notes with the Form and submit along with proposed environmental management plan & monitoring programme)

1. LAND ENVIRONMENT (Attach panoramic view of the project site and the vicinity)

1.1 Will the existing landuse get significantly altered from the project that is not consistent with the surroundings? (Proposed landuse must confirm to the approved Master Plan / Development Plan of the area. Change of landuse if any and the statutory approval from the competent authority to be submitted). Attach Maps of (i) site location, (ii) surrounding features of the proposed site (within 500 meters) and (iii) the site (indicating levels & contours) to appropriate scales. If not available attach only conceptual plans.

Ans: The proposed project is of expansion of an ongoing development of a residential complex comprising nine residential towers along with a club & MLCP to be developed by M/s Ganesh Tracom Pvt. Ltd. & Others. In the expansion proposal another 671.90 sq.m land parcel has been added to the existing land area of 42,547.36 sq.m, which makes the total land area as 43,219.26 sq.m. Existing landuse of the land parcel is bastu. In the expansion proposal, all the residential blocks will be vertically expanded to Ground + 19 storied. Existing phase has already obtained the Environmental Clearance from SEIAA, West Bengal (EC No. 2704/EN/T-II-I/082/2014 dated 07.12.2016). As already stated, out of eleven towers, nine will be residential and the rest two will be Club & Community and Multi Level Car Parking (MLCP) respectively. All the residential towers will be Ground + 19 storied. The club block will be Ground + 2 storied and will be enjoyed by the residents of the proposed residential complex only. The multi level car parking block will be Basement + Ground + 7 storied. Moreover, a podium has been provided shading a considerable portion of open car parking area. Total numbers of flats in existing phase is 1215 and in the proposed expansion phase, another 144 residential flats will be constructed. Thus, total number of flats (including the existing & proposed phases) in this project will be 1215 + 144 = 1359 nos. Built up area of the existing phase is 1,44,246.78 and in the proposed expansion phase additional built up area will be 18,410.65 sq.m. Thus, total built up area including the existing & expansion phases will be (1,44,246.78 + 18,410.65) sq.m = 1,62,657.43 sq.m. Thus, the environmental clearance is sought for the expansion phase. The development will be purely residential. The landuse of the surrounding area is also predominantly residential in nature. Thus, proposed development is consistent with the surroundings. Maps showing site location, surrounding features, concept proposal etc. are attached in Annexure- 1.1 for reference.

1.2 List out all the major project requirements in terms of the land area, built up area, water consumption, power requirement, connectivity, community facilities, parking needs etc.

Ans: The proposed project is a Residential Complex. Basic requirements for the project in terms of the above-stated criterions are listed below:

Location of Plot : Rajarhat Road, R.S. Dag No. 470(P), 473, 474, 475, 476, 477, 478, 479, 480, 481(P), 483, 489, 490, 491, 492, 493, 494, 495, 496, 497, 499, 500, 501(P), 502(P), 503(P), 504(P), 506(P), 507(P), 509(P), 526(P), 531, 532, 533 & 501/716(P) recorded in L.R. Khatian Nos. 2821, 3233, 3281, 3283, 3248, 3285, 3286, 3282, 2849, 2848, 2887, 2846, 3234, 3315, 2855, 2856, 2857, 2858, 2859, 3318, 3317, 3412, 3341, 3340, 2803, 2806, 2805, 2802, 2801, 2800, 2804, 2807, 3302, 3304, 3306, 3301, 3303, 3305, 3312, 2853, 3136, 3307, 3309, 3311, 3310, 3308, 3313, 3411,

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 1 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

3314, 3288, 3287, 2830, 2829, 2828, 2827, 2826, 2825, 2845, 2844, 2843, 2842, 2841, 2840, 2839, 2838, 2837, 2836, 2835, 2834, 2833, 2832, 3240, 2815, 3316, 2854, 2809, 2808, 2814, 2819, 2850, 2851, 2852, 2822, 2823, 2824, 2796, 2797, 2798, 2799, 2816, 2817, 2818, 2810, 2811, 2812, 2813, 2792, 2793, 2794, 2795, 2820, 3073, 3072, 3238, 3236, 3237, 3235, 3239, 3296, 2860, 2861, 2862, 2863, 2864, 3071, 3265, 4092, 3279, 3070, 2866, 2831 & 2865, J.L. No. 28, P.S. Rajarhat, Mouza: Bhatenda, Dist. North 24 pgs., Under Rajarhat Bishnupur Gram Panchayat 1.

Connectivity: The project site is abutted by Rajarhat Road that connects to Major Arterial Road in the south and Rajarhat Main Road in the west direction. The site is very closed to Rajarhat Chowmatha. The proposed site is well connected to the important locations of the city like Newtown (5 km), Salt Lake Sector-V (12 km), North & Central Kolkata by public as well as private transport. One of the attractive features of the proposed project is its close proximity to metro railway route along the Major Arterial Road which is presently under construction. The distance to the nearest metro station will be within 5 km from the site. The site is approx. 15 km from DumDum Station & 20 km from Bidhan Nagar Railway Station (one of the busiest railway stations providing an interface to different parts of the country through an extensive railway network and an important suburban rail terminal) and 10km from Biman Bandar Railway station. Netaji Subhas Chandra International Airport is around 10km from project site.

AREA STATEMENT Land Area (as per Deed) : 43,774.01 sq.m (as per survey) 43,219.26 sq.m Width of abutting road : 25.90m Permissible Ground Coverage : 19,448.667 sq.m (45% of the Plot Area) Permissible F.A.R. : 3.3 (for Green Building advantage) Permissible Built Up Area : 1,42,623.558 sq.m

Area Statement for Existing Phase: Land Area (as per Deed) : 42,972.83 sq.m (as per survey) 42,547.36 sq.m Existing Ground Coverage : 28.41% of Land Area = 12,086.83 sq.m Existing F.A.R. : 2.86 Existing Built up Area : 1,44,246.78 sq.m (including exempted area) Existing F.A.R. Area : 1,21,866.97 sq.m (excluding exempted area) Height of the Building : Residential Block = G + 19storied (max.) =61.6m (max.) from G. L MLCP Block = B+G+7 storied = 24.15m from G.L. Club Block = G + 2 storied = 14.10m from G.L. No. of Building Blocks : 11(Residential = 9, MLCP = 1, Club = 1) No. of Residential Flat : 1215

Area Statement for Total Project (Existing + Proposed Expansion): Total Ground Coverage : 12,387.53 sq.m (28.66% of Land Area) Total F.A.R. : 3.11 Total Built up Area : 1,62,657.43 sq.m (including exempted area) Total F.A.R. Area : 1,34,440.74 sq.m (excluding exempted area) Height of the Building : Residential Block = G + 19 storied = 61.6m from G. L MLCP Block = B+G+7 storied = 24.15m from G.L. Club Block = G + 2 storied = 13.80m from G.L. Total No. of Building Blocks : 11(Residential = 9, MLCP = 1, Club = 1) No. of Residential Flat : 1359 Proposed Landuse Distribution:

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 2 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

Development Existing Phase Existing + Expansion Phase Component Area (sq.m) % of Land Area Area (sq.m) % of Land Area Ground Coverage 12,086.83 28.41 12,387.53 28.66 Area under Service 1,041.14 2.44 1,270.74 2.94 Gate House Area 22.77 0.05 29.24 0.06 Internal Road & 4,883.39 11.48 6,743.21 15.60 Pavement Area Swimming Pool 111.13 0.26 179.20 0.41 Semi Paved Area (HDPE 9,121.72 21.43 8,351.93 19.32 Grass Cell) Tree Plantation Area 9,360.42 22.02 10,168.39 23.52 Soft Area (Other than 5,919.96 13.91 4,297.38 9.94 Plantation) Now considering 10% of total semi paved area to be hard-surface, total hard area = paved area + 10% of the semi paved area + swimming pool = (6743.21 + 835.19 + 179.20) sq.m = 7757.6 sq.m (17.95 % of the land area).

Occupancy Pattern: Occupancy Type Existing Phase Existing + Expansion Residents 5166 persons 6795 persons Residential Floating 500 persons 680 persons Service Staff 100 persons 100 persons Total Occupants 5766 persons 7575 persons

Power Requirement and Source of Supply: Power requirement for existing phase is assessed as 2550 kW. Additional Power Requirement for proposed expansion is assessed as 2074 kW. Thus, total power requirement including existing & expansion phases is 4624 kW. Power is to be supplied by WBSEDCL. D.G. Back up details are = 3 X 650 kVA + 1 X 380 kVA.

Water Requirement and Source of Supply: Total daily water requirement during operational phase has been estimated as 1072 kLD out of which domestic consumption will be 937 kLD. Groundwater will be the source freshwater during construction as well as operational stage for which prior permission has already been obtained from the concerned authority. One third of the domestic water requirement is for toilet flushing that will be met supplying treated wastewater from S.T.P. This in turn will reduce the fresh water requirement. Another source of water will be rooftop rainwater collected during monsoon.

Parking Requirement: Car Parking Details Existing Phase Existing + Expansion Requirement 975 812 Provided 1011 (covered in stilt & 1261 (Covered = 848, podium = 588, Open = Open = 413) 423) Detailed Car Parking Calculation is provided in S. No. – 5.3 of Form –IA.

1.3 What are the likely impacts of the proposed activity on the existing facilities adjacent to the proposed site? (Such as open spaces, community facilities, details of the existing landuse, disturbance to the local ecology).

Ans: The probable impacts due to the proposed project on the existing facilities will be both short-term and long-term in nature. Some of the impacts may prove beneficial in long run. The likely impacts due to the proposed project are: A. Impact on Open Spaces While construction, adequate preventive measures will be adopted to control the fugitive emission,

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 3 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

wastewater discharge and construction waste disposal procedures, to keep the impacts minimum on the surroundings. During the operational phase, comprehensive waste management program will be designed for disposal of wastewater (treated) & solid waste causing least possible impact on the surroundings due to the proposed development.

B. Impact on Community Facilities The surroundings of the proposed site has low to moderate population density with only scattered community facilities in the immediate vicinity. Nearest local daily need based market is located in Rajarhat Chowmatha. Lack of organized market center, healthcare facilities etc. is a temporary concern. As the proposed project site has locational advantage, the area will see many more real estate developments in near future leading to greater inhabitancy and rise in local population. The development of the said project & other near future projects will demand improvement in existing infrastructure, community facilities etc. & will lead to overall betterment of the locality.

C. Impact on Existing Landuse The proposed development is in concurrence with the existing landuse of the surroundings hence no impact. And as the locality is moderately populated, there will be no noticeable impact due to the residential project as the population will marginally increase.

D. Impact on Local Ecology Project site does not have any tree. Thus, there is no scope of clearing or modification of trees and plantation due to the proposed project. Moreover, quite a number of trees will be planted under the proposed landscaping scheme within this complex. Therefore, local ecology will get improved.

1.4 Will there be any significant land disturbance resulting in erosion, subsidence & instability? (Details of soil type, slope analysis, vulnerability to subsidence, seismicity etc. may be given.

The soil of the study area has been developed under the dominant influence of river, vegetation and climatic factors. The area is under heavy anthropogenic pressure due to different human activities. The soil of the area consists mainly of sand, silt and clay, deposited by river, partly under river and partly under flat plains. The colour of the soil is grayish. pH of soil inside the site is 7.23. Sand, silt and clay contents are 28%, 50% and 22% respectively. Soil texture is silty clay. The site is leveled and situated above the flood level of the region, though the existing ground level of the project site is slightly lower than the abutting road. No significant contours were observed. Also, as the building blocks will have foundation, therefore excavation of earthwork and piling activities will take place. Therefore, while executing the project, the existing ground level will be modified. But, adequate measure will be taken to minimize the land disturbance of the project site and surrounding areas. The soil profile of the project site is as follows: Depth Below Average Thickness Description E.G.L. (B.G.L.) Stratum - I 0.00m to 1.20m Filled up by soil, roots etc.

Stratum - II 1.20m to 4.10m Firm brownish grey sity clay with iron spots.

Stratum - III 4.10m to 11.20m Very soft to soft grey to dark grey silty clay with decomposed wood (wood percentage decreased with depth). Stratum – IV 11.20m to 16.10m Stiff bluish grey silty clay with brown spots.

Stratum – V 16.10m to 18.90m Stiff yellowish sandy silty clay.

Stratum – VI 18.90m to 32.40m Dense to very dense yellowish grey to grey silty fine to medium sand with mica. Stratum – VII 32.40m to 38.30m Hard bluish grey to brownish grey silty clay with

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 4 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

calcareous nodules and iron spots. Stratum – VIII 38.30m to 50.10m Dense to very dense yellowish grey to grey silty fine to medium sand with mica. The surrounding area of the project site is predominantly residential. No mining or any other underground activity is carried on in and around the campus. Thus, regarding the subsidence, the project is not at all vulnerable. The area under study falls in Zone-III according to the Indian Standard Seismic Zoning Map. Suitable seismic coefficients in horizontal and vertical directions respectively, will be adopted while designing the structures. There are no chances of floods and landslide as the project site is located at a flat terrain and above the flood level of the region.

1.5 Will the proposal involve alteration of natural drainage systems? (Give details on a contour map showing the natural drainage near the proposed project site)

Ans: As already stated, there is no existing waterbody or wetland in and around the proposed site. Hence no alteration of natural drainage system. The level of the land is below the existing road level. Very little undulations with no significant contours were observed. The piece of land can safely be designated as flat land. The survey report is enclosed as Annexure - 1.5

1.6 What are the quantities of earthwork involved in the construction activity-cutting, filling, reclamation etc. (Give details of the quantities of earthwork involved, transport of fill materials from outside the site etc.)

Ans: The quantity of earthwork involved different construction activities are as follows: Earthwork in excavation = 40,000 cu.m (approx.). Excavated earthwork will be reused for site grading and the surplus volume, if any, will be disposed to Panchayat authorized collection agency. The top soil will be excavated separately and reused for landscaping.

1.7 Give details regarding water supply, waste handling etc. during construction period.

Ans: During construction period, required water of 34 kLD will be made available by withdrawal of groundwater for which prior permission from the concerned authority has already been obtained. Construction waste will partially be reused for land development activities and the rest volume will be disposed to panchayat authorized waste collection agency.

1.8 Will the low lying areas & wetlands get altered? (Provide details of how low lying and wetlands are getting modified from the proposed activity)

Ans: No appreciable contour was observed during site inspection. Only very few slight undulations were observed. Hence the piece of land can be safely designated as flat land. There is no wetland or waterbody within or outside the proposed project site. Therefore, no possibility of any low lying area or wetland getting modified as a result of the proposed development.

1.9 Whether construction debris & waste during construction cause health hazard? (Give quantities of various types of wastes generated during construction including the construction labour and the means of disposal)

Ans: As already stated, project site is vacant. Thus, there lies no scope of generation of demolition waste. All construction waste will be disposed to Panchayat’s authorized solid waste collection. During the excavation for foundation & basement, around 40,000 cu.m of earth is expected to be removed. The top soil will be preserved and utilized for landscaping. Remaining volume of earth will be utilized in site leveling. Effective material management and environmental management measures will be adopted in order

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 5 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

to minimize the volume of construction waste. It is difficult to quantify the volume of construction & demolition waste because of the following factors:  Phasing of construction activities  Skilled workmanship  Recycling of such waste. However, from standard practice, different types of construction waste, which are likely to be generated, will vary from 2 to 5 % of material consumption. Concrete Waste and Cement Mortar Waste will be disposed off to the authorized vendor of Panchayat. Brick Waste will be reused for preparation of sub-base of internal roads and pavements. The domestic waste from the working as well as residing labourers will also be generated, the volume of which has been preliminarily assessed as 30 kg/day. This waste will also be disposed to municipal waste collection department.

2. WATER ENVIRONMENT

2.1 Give the total quantity of water requirement for the proposed project with the breakup of requirements for various uses. How will the water requirement met? State the sources & quantities and furnish a water balance statement.

Ans: The total water requirement during both the construction and operational stages of the proposed project & the probable sources & quantities and water balance statement is furnished below: The water requirement for the proposed project can be divided into two stages:  Construction Stage  Operational Stage

i) Water Requirement at Construction Stage Water requirement for Concrete Work = 9,695 kL Water requirement for Brickwork = 19,689 kL Water requirement for Plastering = 10,143 kL Water requirement for Flooring = 8,316 kL Hence, total water requirement for above-stated construction activities is 47,843 kL. Considering 10% of the above water required for site development activities, total water requirement for construction and site development is 52,627 kL. Considering the total duration of construction period as 60 months i.e. 1825 working days; daily water requirement for construction activities is expected to be 28.84 say 29 kLD. Apart from the construction activities, the labourers residing at the project site will also require water. It is assumed that around 100 labours will be engaged in construction activities and about 50% of them, i.e. 50 labourers on an average will be residing at the project site. Considering per capita water requirement as 70 litres per day for their household activities, daily domestic water requirement is estimated as approx. 3500 litres or 3.5 kLD. Non residential labours will require water @30 lpcd for 50 labours i.e. 1500 litres/day or 1.5 kLD. Therefore, during the construction phase, total daily water requirement will be (29 kLD + 3.5 kLD + 1.5 kLD) = 34.0 kLD.

ii) Water Requirement during Operational Stage

a) Domestic Consumption for Existing Phase = 714 kLD…………(i)

Type of User Per capita Water No. of Users Water Consumption Consumption Residents 135 lpcd 5166persons 697.40 kLD Residential Floating 15 lpcd 500 persons 7.50 kLD Service Staff 45 lpcd 100 persons 4.50 kLD

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 6 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

Club users L.S. 5.00 kLD Total 5782 persons 714.4 say 714kLD

Domestic Consumption for Total Project (Existing +Expansion) = 937 kLD

Type of User Per capita Water No. of Users Total Water Consumption Consumption Residents 135 lpcd 6795 persons 917.325 kLD Residential Floating 15 lpcd 680 persons 10.19 kLD Service Staff 45 lpcd 100 persons 4.50 kLD Club users L.S. 5.00 kLD Total 7575 persons 937.02 say 937 kLD Out of 937 kLD, 1/3 rd volume i.e. 312 kLD will be consumed for toilet flushing, where treated wastewater will be reused. Thus, required freshwater will be (937 - 312) kLD = 625 kLD.

b) Water Reqd. for Car Cleaning = 19.00 kLD……(ii) Car Parks provided in existing phase = 1011 Water required for car cleaning in existing phase = 1011 X 20 litres/car = 20.22 kLD, say 20 kLD Total Car Parks provided for the entire project = 1261 Considering 75% of the cars to be cleaned in a day and considering water consumption as 20 litre/car, water required for car cleaning will be 1261 X 20 X 75% = 19 kLD. Hence, total car parking water required for the entire project = 19 kLD.

c) Water consumption for landscaping = 106.00 kLD…………(iii) Landscaping Water Requirement for Existing Phase Plot Area = 42,547.36 sq.m i.e.4.25 Ha According to SEAC plantation guidelines, 20% of the land area should be reserved for tree plantation, i.e. 20% of 4.25 Ha = 0.85 Ha. Assuming 700 trees/Ha of land area, required no. of trees to be planted = 700 x 0.85 = 595 Proposed no. of trees = 600 Considering water consumption as 70 litres/tree (based on the evapo-transpiration rate as 6mm on average, irrigation efficiency as 85% and plant factor as 0.4) Water consumption by the trees is 600 X 70 litres = 42 kLD. Assuming water requirement for maintenance of semi paved area & the soft area to be 5 lit/sq.m, water required will be (9,121.72 + 5,919.96)x 5 = 75.21 say 75 kLD Therefore, total water requirement for landscaping will be (42+ 75) kLD = 117 kLD

Landscaping Water Requirement for Entire Project Total Plot Area = 43,219.26 sq.m i.e.4.32 Ha According to SEAC plantation guidelines, 20% of the land area should be reserved for tree plantation, i.e. 20% of 4.32 Ha = 0.864 Ha. Assuming 700 trees/Ha of land area, required no. of trees to be planted = 700 x 0.864 = 604.8 say 605 Proposed no. of trees = 610 Considering water consumption as 70 litres/tree (based on the evapo-transpiration rate as 6mm on average, irrigation efficiency as 85% and plant factor as 0.4) Water consumption by the trees is 610 X 70 litres = 42.7 kLD say 43 kLD. Assuming water requirement for maintenance of semi paved area & the soft area to be 5 lit/sq.m, water required will be (8351.93 + 4297.38)x 5 = 63.25 say 63 kLD Therefore, total water requirement for landscaping will be (43+ 63) kLD = 106 kLD

d) Water Requirement for Internal road cleaning = 10 kLD…………..(iv) In both Existing & Proposed Phases, total surface area for internal road is 6743.21 sq.m.

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 7 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

Considering water consumption for internal road cleaning as 150 lit/ 100 sq.m , the water required for the said purpose will be = 10.11 say 10 kLD.

e) Water Requirement for Fire Fighting Static water demand for firefighting purpose will be according to the fire department’s recommendation. In this case, an underground water reservoir of recommended capacity will be provided for satisfying the requirement.

Activity Existing Phase Existing + Expansion Domestic 714 kLD 937 kLD Car Cleaning 20 kLD 19 kLD Internal Road & Pavement 7 kLD 10 kLD Landscaping 117 kLD 106 kLD Total 858 kLD 1072 kLD

Total Water Consumption = (937 + 19 + 106 + 10) = 1072 kLD (Water requirement for fire-fighting is not considered as it is a static demand)

SOURCES OF WATER SUPPLY The freshwater requirement will be met by withdrawal of groundwater for which prior permission from concerned authority has already been obtained The other sources are treated wastewater from S.T.P & rooftop rainwater during monsoon.

WATER BALANCE DURING OPERATIONAL STAGE Water balance for the proposed complex has been done in following way: Water Requirement for domestic purposes = 937 kLD (source : freshwater and tr. waste water) Water Requirement for car cleaning = 19 kLD (source : rooftop rainwater) Water Requirement for internal road cleaning = 10 kLD (source : treated waste water) Water Requirement for landscaping = 106 kLD (source : treated waste water) Total Water Requirement per day = 1072 kLD (this quantity excludes the fire-fighting requirement, as that is a static demand) Net Freshwater Requirement = 625 kLD. Generated Wastewater from domestic activities = 749.6 say 750 kLD (80% of domestic water consumption of 937 kLD) Treated waste water to be generated = 735 kLD (98 % of generated wastewater) Available Rainwater from Rooftop = 24.0 kLD Treated waste water to be used for Landscaping = 106.0 kLD Rooftop rainwater to be used for Car Cleaning = 19.0 kLD Treated waste water to be used for internal road cleaning = 10.0 kLD In this project, wastewater treatment facilities will be provided. Generated wastewater will be treated, partially reused and the rest will be discharged into road side drain. The Water Balance Diagram is enclosed in Annexure – 2.1.

2.2 What is the capacity (dependable flow or yield) of the proposed source of water?

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 8 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

Ans: During the construction as well as operational phase, freshwater requirement will be met by withdrawal of ground water for which prior permission has already been obtained from the concerned authority. Copies of the SWID certificates are enclosed in Annexure – 2.2 The geological set up of the region clearly indicates that groundwater occur both under confined and unconfined conditions. Groundwater in the shallow zone occurs under unconfined i.e. under water table conditions while the same in the deeper granular zones occurs under confined conditions. During the post monsoon period, the depth to the water table is shallowest, ranging generally in depth from 2 to 3 m below the land surface. During the summer months, the water table, however, recedes to depths generally ranging between 4 to 5 m.

The groundwater in deep aquifers (within 150m to 300m depth) occurs under confined conditions. The regional isopiezometric contour map suggests that the hydraulic gradient is 1:1600. Considering a flow path of 5 km an approximate estimate of groundwater flow through the section is around 1,900 cum per day.

In Rajarhat area, due to the presence of thick clay at the top the upper aquifer gives a semi confined character. There is a thick gray clay bed upto a depth of 10 m. From 10 to 42 m there are several layers of fine sand often mixed with clay. This is the upper low yielding aquifer of the area. Below this, there is a dark gray clay bed between 42 to 55 m. From 55 to 84 m there is a bed of fine sand. Below this, medium sand occur upto a depth of 100 m (16m thickness). Below this upto a depth of 135 m there is fine sand. The zone between 55 m and 135 m constitutes a potential aquifer in this area and most of the groundwater is withdrawn at this depth. 2.3 What is the quality of water required, in case, the supply is not from a municipal source? (Provide physical, chemical, biological characteristics with class of water quality)

Ans: Groundwater will be source of freshwater. Water samples from the existing bore wells in the surroundings was collected and analyzed in a Laboratory. The report shows most of the parameters to be well within the permissible limit. The most common problem associated with groundwater is higher concentration of Total Dissolved Solids (TDS) & iron. TDS was found to be 680 mg/litre. Higher level of TDS in the groundwater may affect its taste and cause scaling in pipes and in kitchen appliances in the long run. The palatability of drinking water has been rated by panels of tasters in relation to its TDS level as follows: excellent, less than 300 mg/litre; good, between 300 and 600 mg/litre; fair, between 600 and 900 mg/litre; poor, between 900 and 1200 mg/litre; and unacceptable, greater than 1200 mg/litre. Iron concentration is higher than the permissible limit (0.3 mg/l). Filtration unit with an iron filter may be installed to ensure safe water supply to the residents. The total hardness is well within limit.

2.4 How much of the water requirement can be met from the recycling of treated wastewater? (Give the details of quantities, sources and usage)

Ans: During the operational stage, total daily water requirement of the proposed development is assessed as 1072 kLD, out of which 937 kLD will be the domestic demand. The volume of generated wastewater will be around 80% of the domestic water demand i.e. 750 kLD, which will be treated in S.T.P. and reused for toilet flushing & other secondary purposes like landscaping & internal road cleaning. The remaining part will be discharged into drain lying along the abutting road.

2.5 Will there be diversion of water from the users? (Please assess the impacts of the project on other existing uses and quantities of consumption)

Ans: In the proposed project, there will not be diversion of water from the users.

2.6 What is the incremental pollution load from wastewater generated from the proposed activity? (Give details of the quantities and composition of wastewater generated from the proposed activity)

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 9 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

Ans: During the operational stage of the proposed project, the average daily domestic demand of water will be 937 kLD. Therefore, generated wastewater will be in the tune of around 750 kLD (80% of water consumption). Expected composition of raw wastewater (as per CPHEEO manual) which will be reused for different secondary purposes (mentioned above) are listed below:

Expected Wastewater Quality Parameter Raw Wastewater Quality pH 6.5 – 7.5 BOD (in mg/l) 200 COD (in mg/l) 350 TSS (in mg/l) 150 – 250 Oil & Grease (in mg/l) 15 – 20 Thus, from the above table, it can be mentioned that the treated discharge is within the permissible limit and hence will not impose additional incremental pollution load.

2.7 Give details of the water requirements met from water harvesting? Furnish details of the facilities created.

Ans: As per the SEAC Guidelines, West Bengal for rainwater harvesting, method of storing rainwater does not include the collection of rainwater from ground surface. The runoff from the ground surface will be channeled through the storm water drains and finally discharged into the road side drain. Only the rooftop rainwater will be harvested. The expected availability has been assessed and mentioned below: According to the guidelines, RWH potential in 1000 sqm Roof Area is considered to be 7,68,000 litres and the storage facility to be created from 1000 sq.m Roof Area is 3 lacs litre (for 10 to 15 storied buildings & above),2.5 lacs litres (6 to 10 storied buildings) and 1.5 lacs (for 3-5 storied buildings) respectively.

RAINWATER COLLECTION RESERVOIR CAPACITY ASSESSMENT (Existing Phase) In our project, the residential building blocks are 15 to 20 storied (G+XVIII – G+XIX). Available roof area of residential block for collection of rainwater is 9,000 sq.m Thus, available rooftop rainwater for storage is (as 100% will be harvested) 9.000 X 3,00,000/1000 litres = 2700 kL/annum Considering the duration of monsoon as 120 days, daily available rooftop rainwater during monsoon is 2700/120 = 22.5 kLD say 22kLD. Out of 22 kLD, 20kLD of the collected rooftop rainwater will be used for car cleaning. Remaining 2kLD will be stored in collection reservoir. However during the monsoon total volume of surplus rainwater that may be collected is 120 x 2.0 kLD= 240 kL. Here, we propose three collection reservoirs of 200 cu.m each.

RAINWATER RECHARGE WELL CAPACITY ASSESSMENT (Existing Phase) Rooftop rainwater will first be collected into collection reservoir and the overflow will be directed to recharge wells within the site. Volume of rainwater to be recharged through recharge trenches is [(7,68,000 X 9000/1000) X 60%]= 41,47,200 litres/annum i.e. 4147 kL/ annum. Hence, the total volume of rainwater to be recharged = 4147 kL. Considering the monsoon period as 120 days, daily average recharge volume available is 4147/120 = 34.55 kLD say 35 kLD. Hence we can propose three recharge wells within the site each of which can provide recharge up to 12 kL per day.

RAINWATER COLLECTION RESERVOIR CAPACITY ASSESSMENT (Existing + Expansion) In our project, the residential building blocks are 20 storied (G+XIX). Available roof area of residential block for collection of rainwater is 9,535 sq.m Thus, available rooftop rainwater for storage is (as 100% will be harvested) 9,535 X 3,00,000/1000 litres = 2861 kL/annum Considering the duration of monsoon as 120 days, daily available rooftop rainwater during

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 10 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

monsoon is 2861/120 = 23.84 kLD say 24kLD. Out of 24 kLD, 19 kLD of the collected rooftop rainwater will be used for car cleaning. Remaining 5 kLD will be stored in collection reservoir. However during the monsoon total volume of surplus rainwater that may be collected is 120 x 5.0 kLD= 600 kL. Hence, we propose three collection reservoirs of 200 cu.m each.

RAINWATER RECHARGE WELL CAPACITY ASSESSMENT (Existing + Expansion) Rooftop rainwater will first be collected into collection reservoir and the overflow will be directed to recharge wells within the site. Volume of rainwater to be recharged through recharge trenches is [(7,68,000 X 9535/1000) X 60%]= 43,93,728 litres/annum i.e. 4394 kL/ annum. Considering the monsoon period as 120 days, daily average recharge volume available is 4394/120 = 36.62 kLD say 37 kLD. Hence we can propose three recharge wells within the site each of which can provide recharge up to 13 kL per day.

2.8 What would be the impact of the landuse changes occurring due to the proposed project on the runoff characteristics (quantitative as well as qualitative) of the area in the post construction phase on a long term basis? Would it aggravate the problems of flooding or water logging in any way?

Ans: Except the single storied existing structure, there is no other hard surface present within the site. The land can be classified as vacant. Therefore, the runoff characteristic is assumed in the range of 0.2. After the execution of the project, 28.66% of the plot area will be covered by building blocks and around 25.16% of the open area will be hard surface. Almost 3/4th of the available land will be developed hence the resultant runoff characteristic will change to 0.6 on an average. Therefore, it can be said that the runoff characteristic of the project site will increase marginally after execution of the project. The quantified difference of runoff at the project site during the preconstruction and post- construction stage is obtained from the following Runoff-Rainfall Intensity Relationship equation: Q = 10 C i A Where Q = runoff in m3/hr, C = coefficient of run-off i = intensity of rainfall in mm/hr and A = area of drainage district in hectare During the pre-construction stage, following considerations are taken: C = 0.2 i = 40 mm/hr A = 43,219.26 sq.m = 4.32 Ha Therefore, during the preconstruction stage, runoff (Q) will be in the tune of: Q = 10 [0.2X 40 X 4.32] m3/hr = 346 m3/hr During the post-construction stage, following considerations are taken: C = 0.6 i = 40 mm/hr A = 43,219.26 sq.m = 4.32 Ha Therefore, during the post-construction stage, runoff (Q) will be in the tune of: Q = 10[0.60 X 40 X 4.32] m3/hr = 1037 m3/hr Thus, the surface run-off of the project site will increase by 691 m3/hr during the peak rainfall period. However this volume includes the rooftop runoff as well, which will be harvested. The remaining volume will flow through the storm water drain. To avoid water logging problem inside the project site, adequate measures will be adopted while designing the stormwater drainage network and drain sections to accommodate the peak runoff. However, the ground surface runoff will be discharged to the road side drain.

2.9 What are the impacts of the proposal on the ground water? (Will there be tapping of ground water; give the details of ground water table, recharging capacity, and approvals obtained from competent authority, if any)

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 11 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

Ans: The freshwater requirement during the construction as well as post-construction stage for the proposed complex will be met by withdrawal of groundwater for which prior permission has already been obtained from the concerned authority. Moreover, rooftop rainwater and treated waste water will be reused for car and internal road cleaning, landscaping etc., which will minimize the freshwater requirement. There should be minimum adverse impact on groundwater. The geological set up of the region clearly indicates that groundwater occur both under confined and unconfined conditions. Groundwater in the shallow zone occurs under unconfined i.e. under water table conditions while the same in the deeper granular zones occurs under confined conditions. During the post monsoon period, the depth to the water table is shallowest, ranging generally in depth from 2 to 3 m below the land surface. During the summer months, the water table, however, recedes to depths generally ranging between 4 to 5 m. The groundwater in deep aquifers (within 150m to 300m depth) occurs under confined conditions. The regional isopiezometric contour map suggests that the hydraulic gradient is 1:1600. Considering a flow path of 5 km an approximate estimate of groundwater flow through the section is around 1,900 cum per day. In Rajarhat area, due to the presence of thick clay at the top the upper aquifer gives a semi confined character. There is a thick gray clay bed upto a depth of 10 m. From 10 to 42 m there are several layers of fine sand often mixed with clay. This is the upper low yielding aquifer of the area. Below this, there is a dark gray clay bed between 42 to 55 m. From 55 to 84 m there is a bed of fine sand. Below this, medium sand occurs upto a depth of 100 m (16m thickness). Below this upto a depth of 135 m there is fine sand. The zone between 55 m and 135 m constitutes a potential aquifer in this area and most of the groundwater is withdrawn at this depth. Consequence of withdrawal of approx. 200 cum of groundwater per day from the deeper aquifers will not cause any significant change in the groundwater scenario. The capability of the recharge and recharge-discharge relationship of the aquifer systems may control the seasonal flow of groundwater to a great extent. As regards the shallow aquifers, considering that groundwater occurs nearly under water table conditions, the annual recharge computed over an area of 5 sq.km having seasonal fluctuation of water table to the time of 2m with a specific yield of 10% work out to 10,000 cum per year. As regards the deeper aquifers, consequent to withdrawal of 1000-1500 cum per day of groundwater, there would certainly be a marginal change in the groundwater scenario of the deeper aquifers. The capability of the recharge and recharge-discharge relationship of the aquifer systems may control the seasonal flow of groundwater to a great extent.

2.10 What precautions/measures are taken to prevent the run-off from construction activities polluting land & aquifers? (Give details of quantities and the measures taken to avoid the adverse impacts)

Ans: The precautions/measure to be taken to prevent the run-off from construction activities are mentioned in the Environmental Management Plan, enclosed. However, broadly it can be mentioned that the no construction wastewater will be discharged directly into the land, stormwater drain or into the river. Few numbers of Sediment trap of sizes 2.5m(L) X 2.5m(W) X 0.75m (D) and retention period of half an hour will be constructed during the construction stage, where all construction wastewater will be discharged. After the sedimentation of the construction wastewater, the comparatively cleaner water will be partially reused and the rest part will be discharged into the roadside drain. 2.11 How is the storm water from within the site managed? (State the provisions made to avoid flooding of the area, details of the drainage facilities provided along with a site layout indication contour levels)

Ans: During the post-construction stages, the storm water will be collected into the surface drainage network inside the campus. The drain sizes and sections will be designed in such a way that they can take the load of the peak rainfall period. All the surface drains will be covered by gratings to avoid the litter and other inert waste. Proper land gradient will be provided so that water logging inside the campus does not occur. The collected storm water from the building roofs during the rainfall period will be stored. To reduce the surface runoff and subsequent increase in infiltration of

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 12 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

rainwater, attempts will be made to maximize the green surface inside the campus. Adequate number of trees will also be planted. As the site is located in flat terrain, appreciable slope is not observed within the project site. Moreover, proper land grading will be provided so that the slope of the modified ground level remains similar with the natural slope of the site. The drainage & sewerage layout plan is enclosed in Annexure- 2.11.

2.12 Will there be deployment of construction labourers particularly in the peak period lead to unsanitary conditions around the project site (Justify with proper explanation)

Ans: Proper on-site sanitation facilities will be provided for the construction labourers so as to avoid defecation in and around project site. Few numbers of toilets comprising latrine, bath, hand-wash facilities will be constructed inside the project site. Generated domestic wastewater from construction labourers will be connected to road side drain. Moreover, adequate water supply for drinking and other domestic uses will also be provided during the construction stage of the project. Therefore, it can be presumed that there will not be any deployment of construction labourer during the construction stage of the project.

2.13 What on-site facilities are provided for the collection, treatment & safe disposal of sewage? (Give details of the quantities of wastewater generation, treatment capacities with technology & facilities for recycling and disposal)

Ans: Wastewater treatment facility will be provided inside the complex. Generated wastewater will be reused for secondary purposes and remaining discharged into road side drain. Water Consumption for Domestic Purposes : 937 kLD Generated wastewater : 750 kLD (80% of water consumption) Treated wastewater: 735 kLD (98% of wastewater) Treated wastewater to be reused : 428 kLD Treated wastewater to be discharged into road side drain : (735 - 428) kLD = 307 kLD.

The proposed sewage treatment plant will be of Activated Sludge type with extended aeration. It envisages collection of all the sewage water through a network of conduit with battery of inspection chambers and manholes and taken into a raw sewage water collection sump / equalization tank through a bar screen chamber. The equalization tank will have a retention capacity of approximately 4-6 hrs. Sewage from this tank will be constantly pumped into Aeration tank using effluent transfer pumps to achieve continuous re-circulation arrangement of the contents of the equalization tank. The aeration tank will have a detention time varying from 16 to 36 hours for continuous aeration. Aerated waste will be allowed to settle in a secondary settling tank and overflow will be let into semi treated effluent sump. The sludge will be partly fed back to aeration tank by pumping and the remaining sludge pass through sludge handling system consisting of automatic filter press, sludge thickener, dry cake handling equipment polyelectrolyte dosing for disposal. Dried cake will be removed and used as manure for plants. From semi treated water collection sump, water will be pumped through activated carbon filter, pressure sand filter and pumped and stored in a treated water tank used for landscaping and flushing after disinfection. From this tank, treated water will be used for landscaping and flushing purpose. The final quality of the treated waste water will meet the norms stipulated by the West Bengal Pollution Control Board. Flow diagram of S.T.P is enclosed as Annexure - 2.13

2.14 Give details of dual plumbing system if treated waste used for flushing of toilets or any other use.

Ans: Dual Plumbing System will be installed in this project, as wastewater treatment facility has been proposed for the project. Treated waste water will be reused for toilet flushing and other secondary purposes.

3. VEGETATION

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 13 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

3.1 Is there any threat of the project to the bio-diversity? (Give a description of the local ecosystem with its unique features, if any)

Ans: No. The project will not pose any major threat to the bio-diversity of the locality. Project site does not have any tree. Also, the project site does not contain any water body; therefore, no scope of disturbance to the terrestrial as well as aquatic flora is involved. Moreover, quite a number of trees are also going to be planted during the later period of the construction stage. The species will be predominantly native in nature so that they merge with the local ecosystem. The description of the local ecosystem is enclosed in Annexure-3.1.

3.2 Will the construction involve extensive clearing or modification of vegetation? (Provide a detailed account of the trees & vegetation affected by the project)

Ans: No, there is no involvement of clearing or modification of existing vegetation, as project site does not have any tree.

3.3 What are the measures proposed to be taken to minimize the likely impacts on important site features (Give details of proposal for tree plantation, landscaping, creation or water bodies etc along with a layout plan to an appropriate scale)

Ans: Adequate measures will be taken to minimize the likely impacts of the proposed project on the surrounding as well as the project site itself and documented in the Environmental Management Plan. The landscaping and plantation programme and species details are shown in the landscape plan which is enclosed in Annexure-3.3. Around 610 trees will be there during the later part of the construction period of the project. This will include flowering and fruit bearing trees along the boundaries. Mostly native species will be planted. Decorative trees and hedges will be provided along pedestrian pathways.

4. FAUNA

4.1 Is there likely to be any displacement of fauna-both terrestrial and aquatic or creation of barriers for their movement? Prove the details.

Ans: It is already stated that project site does not have any tree or waterbody. Therefore, no scope of displacement of terrestrial as well as aquatic fauna is involved due to the proposed construction.

4.2 Any direct or indirect impacts on the avifauna of the area? Provide details.

Ans: As there is no existing tree, there is no scope of displacement of avifauna from the project site. During the operational stages, the planted trees will get matured and invite different birds from the surrounding. Therefore, a positive impact is expected.

4.3 Prescribe measures such as corridors, fish ladders etc to mitigate adverse impacts on fauna.

Ans: There will not be any adverse impact on fauna due to proposed project.

5. AIR ENVIRONMENT

5.1 Will the project increase atmospheric concentration of gases & result in heat islands? (Give details of background air quality levels with predicted values based on dispersion models taking into

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 14 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

account the increased traffic generation as a result of the proposed constructions)

Ans: During the operational stage, the proposed complex will not generate any emission of dust, fumes or gas so that the atmospheric concentration of polluting agents increase. However, as there will be a few numbers of buildings, there might remain a possibility of slight increase in heat island effect, which can be mitigated in the following ways: i) Judicial layout of building blocks within the complex The building block within the complex is laid in such a manner that there remains sufficient amount of external as well as internal open space between the blocks so that the air movement does not get interrupted. ii) Reducing the footprint of building blocks Only 28.66% of the land area will be occupied by building blocks. Thus, 71.34% of the land area will remain as open space (mostly green). Therefore, much lesser heat gain will be over the green surface. iii) Selection of Building Materials The building materials will be selected in such a way that the solar heat gain over the vertical surface and roof is minimized. iv) Trees and Vegetation Sufficient number of shading trees will be planted inside the project site to reduce the air temperature within the project site and surroundings. v) Reduction in Hard Surface Hard surface in the form of metallic road will be kept minimum. The pavements will be of porous and light coloured material and open joints.

The ambient air quality in the locality reveals that average SPM and RPM concentration ranges SPM and RPM concentration ranges from 180.8 µg/m3 to 218.67 µg/m3 and 86.07 µg/m3 to 110.59 3 3 3 µg/m respectively. The concentration of SOx and NOx ranges from 7.37 µg/m to 7.89 µg/m and 25.02 µg/m3 to 30.1 µg/m3 respectively. This reveals that the concentration of particulate matter is slightly higher than that the respective standards, which might be from the ongoing traffic flow in the locality. The concentration of gaseous emission is well within the respective standard. As there will not be any emission generating activity during the operational phase of the complex, there will not be any continuous source of emission and thus the ambient air quality will not be affected. The traffic volume and movement also will be controlled within the complex.

5.2 What are the impacts on generation of dust, smoke, odorous fumes or other hazardous gases? Give details in relation to all the meteorological parameters.

Ans: During the operational stage of the project, there will not be any such activity which can generate dust, smoke, odorous fumes or other hazardous gas. The proposed project is residential complex. Only 3 X 650 kVA + 1 X 380 kVA DG sets might generate little smoke which will be controlled at source.

5.3 Will the proposal create shortage of parking space for vehicles? Furnish details of the present level of transport infrastructure & measures proposed for improvement including traffic management at the entry & exit to the project site.

Ans: Car Parking Calculation for Residential Complex (Existing Phase): Car Parking Calculation For the Entire Project has followed NKDA Building Rules 2009; as the area is falling under the New Town Planning Area. Total Number of Tenements = 1215 out of which number of tenement having area between 75 – 100 sq.m is 603 and number of tenement having area between 100 – 200 sqm = 612. Considering 1 car park for every two tenements (having area between 75 – 100 sq.m) car parking required is 603/2 = 301.5 say 302. Considering 1 car park for every tenement (having area between 100 – 200 sq.m) car parking required is 612/1 = 612.

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 15 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

Total residential car parking required = 302 + 612 = 914 nos. Total carpet area of club = 2128 sq.m. Considering 1 car park per 35 sq.m, required car parking for club = 61 nos. Therefore, total required car parking = 914 + 61 = 975 nos. Proposed car parking = 1011 nos. (covered in stilt & podium = 588, Open = 423)

Car Parking Calculation for Residential Complex (Existing + Expansion): Car Parking Calculation For the Entire Project has followed NKDA Building Rules 2009; as the area is falling under the New Town Planning Area. Total Number of Tenements = 1359 out of which number of tenement having area between 50 – 75 sq.m is 340, number of tenement having area between 75 – 100 sq.m is 691,and number of tenement having area between 100 – 200 sq.m = 328. Considering 1 car park for every four tenements (having area between 50 – 75 sq.m) car parking required is 340/4 = 85. Considering 1 car park for every two tenements (having area between 75 – 100 sq.m) car parking required is 691/2 = 345.5 say 346. Considering 1 car park for every tenement (having area between 100 – 200 sq.m) car parking required is 328/1 = 328. Total residential car parking required = 85 + 346 + 328 = 759 nos. Total carpet area of club = 1865.26 sq.m. Considering 1 car park per 35 sq.m, required car parking for club = 53 nos. Therefore, total required car parking = 759 + 53 = 812 nos. Proposed car parking = 1261 nos. (Covered = 848, Open = 413)

The project site is well connected to network of roads leading from various parts of the city. The increase in traffic due to the project is marginal and therefore the impact will be marginal. Internal roads will be provided within the complex.

5.4 Provide details of the movement patterns with internal roads, bicycles tracks, pedestrian pathways, footpaths etc., with areas under each category.

Ans: Around 15.60% of the land area (6,743.21 sq.m) will be developed as metallic road, 19.32% of land area (8,351.93 sq.m) will be developed as semi paved surface to be utilized as driveway as well as parking. There will not be any separate bicycle tracks, pedestrian pathway or footpath. A copy of circulation plan within the project site is enclosed in Annexure 5.4.

5.5 Will there be significant increase in traffic noise & vibrations? Give details of the sources and the measures proposed for mitigation of the above

Ans: No. As the complex will be purely residential in nature, adequate attention has been paid while designing the site layout. The residential block is laid at the rear part of the project site. Designated parking area for residential will be kept. Only the vehicle of the residents and service vehicles will be allowed to enter the site. Also, no scope of heavy traffic movement is involved inside except in emergency and the speed limit of the vehicles will be controlled. Visitor’s car movement will be restricted within the complex. Therefore, there will not be any significant increase in traffic noise and vibration within the complex. Day time equivalent noise levels (Leq) in the locality is between 51.28 dB(A)to 57.12 dB(A) respectively. The values are little higher than the respective permissible limit, which is due to the traffic movement along the abutting road. To reduce the impact of generated noise, tree with dense foliage along the roadside boundaries of the project site will be planted.

5.6 What will be the impact of DG sets & other equipment noise levels & vibrations in & ambient air quality around the project site? Provide details.

Ans: Impacts on Air Quality due to DG Sets:

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 16 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

Impacts: • Impacts on ambient air during operation phase would be due to emissions from the stacks attached to standby DG set only during grid power failure. Mitigation Measures • Back up DG sets will comply with the applicable emission norms.  D.G. Sets will be silent type and proper acoustic enclosure will be provided. • Adequate stack height for DG sets will be provided as per norms. • Back up DG sets will be used only during power failure. • Periodic monitoring of emissions from DG sets will be carried out as per norms. 6. AESTHETICS

6.1 Will the proposed constructions in any way result in the obstruction of a view, scenic amenity or landscapes? Are these considerations taken into account by the proponents?

Ans: The maximum height of the building blocks of the proposed project will be 61.6m from G.L. Adequate open spaces according to the municipal building rules will be provided. Sufficient inter building open spaces will also be kept so that the natural daylight, air movement as well as scenic view does not get disturbed.

6.2 Will there be any adverse impacts from new constructions on the existing structures? What are the considerations taken into account by the proponents?

Ans: No. The new construction will be confined within the project site only. Sufficient external open spaces will be provided on all sides of the project site. Moreover, precautionary measures will be adopted while excavating foundation or erecting superstructures by erecting vertical shoring to avoid landslide or soil erosion. It will also help to protect the structural stability of the surrounding existing structures. All the construction materials will be stored within the project site itself. Around 1000 sqm area will be provided for stacking of construction materials. The stacking area will be fully covered to prevent spreading of dust. No construction materials or waste will be dumped outside the project boundary or along the abutting roads. Thus, there remains no chance of traffic closure or diversion, due to the proposed construction. Construction activities will be carried on during the day time only. Construction Wastes will be disposed properly by covering with polythene sheets.

6.3 Whether there are any local considerations or urban form & urban design influencing the design criteria? They may be explicitly spelt out.

Ans: The development of the entire project will abide by the local building rules and regulations set by the regulatory authority of the area. The urban form and urban design of the proposed project will be influenced by the local consideration and simultaneously most contemporary from aesthetic and users point of view.

6.4 Are there any anthropological or archaeological sites or artifacts nearby? State if any other significant features in the vicinity of the proposed site have been considered.

Ans: No anthropological or archaeological sites or artifacts are located nearby.

7. SOCIO-ECONOMIC ASPECTS

7.1 Will the proposal result in any changes to the demographic structure of local population? Provide the details.

Ans: Little change in the local demographic structure is envisaged for the project, as around 7575

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 17 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

persons are expected to reside within the complex.

7.2 Give details of the existing social infrastructure around the proposed project.

Ans: The project site falls under Rajarhat Bishnupur Gram Panchayat. It is abutted by Bishnupur Road that connects to Major Arterial Road in the south and Rajarhat Main Road in the west direction. The proposed site is well connected to the important locations of the city like Newtown, Salt Lake Sector-V, North & Central Kolkata by public as well as private transport. One of the attractive features of the proposed project is its close proximity to metro railway route along the Major Arterial Road which is presently under construction. The distance to the nearest metro station will be within 5 km from the site. Considering medical facilities in the locality there seem to be a lack of Government initiatives. Only one govt. hospital is located at Rekjuani. But to cater the need of the local people as well as to that of the people from surrounding area few numbers of private hospitals and nursing homes are coming up. Besides these, few numbers of Doctor’s clinic, Diagnostic Centre and Medicine shops are located in the study area having a very easy accessibility from the project site. As far as education facilities are concerned, the area has a large number of educational institutions to cater to the need of local residents as well as students from outside area. North Point School is located at a distance of around 2 km along southeast direction from the project site. Closed to the North Point School, another upcoming school of La Marteniere is also coming up. New Haryana School and St. James School are located along the southwest direction from the project site. Derozio College is located along 4km from project site. Indian Institute of Aeronautical Science is located at the southwest direction around a kilometer from project site. Apart from that quite a number of primary schools are also located in the locality. Regarding market facilities, it is already mentioned that the landuse pattern of both sides of Rajarhat road is predominantly residential in nature. A number of essential shops are located sporadically along the road. But as far as market facility is concerned, the nearest market in the region is Rajarhat Bazar near Kaikhali Chowmatha. Apart from this, few other markets like Lodh Market, Pashupati Market and Naipukur Milan Market are also located in the vicinity. But the most organized market center is CITY CENTRE – II which is located at a little far from the project site.

7.3 Will the project cause adverse effects on local communities, disturbance to sacred sites or other cultural values? What are the safeguards proposed?

Ans: The project will not cause any adverse effects on local community during the construction or operational stage. No sacred site is located surrounding the project site. Construction activities will not cause any harm to the local habitants in terms of emission, waste generation, effluent generation, noise etc. During the operational phase also, the generated wastewater and solid waste from the complex will be properly managed so that the local community as well as the existing physical infrastructure doesn’t feels the stress. The safeguards are mentioned in the Environmental Management Plan.

8. BUILDING MATERIALS

8.1 May involve the use of building materials with high-embodied energy. Are the construction materials produced with energy efficient processes? (Give details of energy conservation measures in the selection of building materials and their energy efficiency)

Ans: Construction of the project will be done with conventional building material. Energy conservation measures of different building materials and structural components are described below: . The external wall of the building blocks will be constructed with 250mm thick double brick layer, both side plastered (expected U-value = 0.44 W/m2-°C) . The roofs of the building blocks will be constructed with typical 100-150mm thick R.C.C. slab with cement screed and clay tiles (expected U-value = 0.797 W/m2-°C)

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 18 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

. Glass panes will be 4mm to 6mm thick depending upon the exposure of the surface to the sun. In some of the areas of building façade, double glazing with reflective coating might also be used. Expected U-values of single glazing clear glass are 3.3 W/m2-°C. . Paving materials will be light coloured and porous. The pavement might be of open jointed paver blocks partially depending upon the landscaping scheme.

8.2 Transport and handling of materials during construction may result in pollution, noise & public nuisance. What measures are taken to minimize the impacts?

Ans: All building materials carrying vehicles will be covered with tarpaulin or polythene sheets to avoid spreading of dust and dirt. Separate raw material handling yard will be made. Cement will be separately stored under cover in bales. Sand will be stacked neatly under tarpaulin cover. Bricks and steel will be laid in open. All material transportation will be done during the daytime only. Raw material handling yard will be located within the project site and separated by enclosures.

8.3 Are recycled materials used in roads and structures? State the extent of savings achieved?

Ans: Yes. Recycled materials may be used in roads and land development activities. Depending upon the situation and 10 to 15% savings may be achieved by using recycled materials.

8.4 Give details of the methods of collection, segregation & disposal of the garbage generated during the operation phases of the project.

Ans: Volume of solid waste is 3.87 tonne/day. The breakup of daily generated solid waste during the operational phase is given below:

Solid Waste Generation Calculation for Existing Phase Type of User Per capita solid No. of Users Solid waste generation waste generation Residents 0.5 kg/cap/day 5166persons 2583.0 kg/day Residential Floating 0.1kg/cap/day 500 persons 50.0 kg/day Service Staff 0.3 kg/cap/day 100 persons 30.0 kg/day Site Maintenance 0.05 kg/cap/day 5766 persons 288.3 kg/day Total 2951.3 say 2951 kg/day or 2.95 tonne/day

Solid Waste Generation Calculation for Entire Project (Existing + Expansion) Type of User Per capita solid No. of Users Solid waste generation waste generation Residents 0.5 kg/cap/day 6795 persons 3397.5 kg/day Residential Floating 0.1kg/cap/day 680 persons 68.0 kg/day Service Staff 0.3 kg/cap/day 100 persons 30.0 kg/day Site Maintenance 0.05 kg/cap/day 7575 persons 378.75 kg/day Total 3874.25 say 3874 kg/day or 3.87 tonne/day

The collection and disposal method of generated solid waste is given below:  No indiscriminate disposal of garbage should be allowed within the complex. A proper waste collection system is to be implemented.  Waste will be segregated at source. To facilitate this, a multi-bin system will be provided for storing bio-degradable waste as food leftovers, vegetable and fruit peels, non-biodegradable waste such as metal scrap, rubber and recyclable wastes such as papers and plastics. These bins will be in different colours to facilitate the disposal.  Organic part of the waste will be composted in an on-site mechanical compost plant.

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 19 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

 For apartments, House to House garbage collection system will be adopted.  Waste from yard and garden should be collected into the small handcarts by the sweeper and transported to the common waste bin.  Garbage collection procedure is to be conducted during the early morning hours in a day.  Accumulation of garbage in the storage bin will be avoided for more than 24 hours and collected garbage will be disposed off daily through panchayat’s garbage disposal system.  Waste storage bin size will be adequate to accommodate at least two days solid waste.  To avoid the dumping of garbage along the roads, parks, common areas, few number of solid waste storage bins have to be placed in strategic location.

9. ENERGY CONSERVATION

9.1 Give details of the power requirements, source of supply, backup source etc. What is the energy consumption assumed per square foot of built-up area? How have you tried to minimize energy consumption?

Ans: During the operational phase of the project, power requirement will be around 4624 kW. The source of power supply will be WBSEDCL. Energy consumption has been preliminarily assumed as 10W/m2 for residential apartments, 5W/m2 for Community area and 2W/m2 for service area. Following measures will be adopted to minimize the energy consumption: Energy Efficient Features: . LED lighting fixtures in the common areas . Truelite fluorescent lamps/CFL in apartments . Roof-top thermal insulation . Appropriate design to shut out excess heat and gain loss . Use of solar energy in external lighting . Maximum utilization of natural light for residential apartments

9.2 What type of, and capacity of, power back-up to you plan to provide?

Ans: 3 X 650 kVA + 1 X 380 kVA DG sets will be installed to provide the back-up, in case of power failure.

9.3 What are the characteristics of the glass you plan to use? Provide specifications of its characteristics related to both short wave and long wave radiation?

Ans: Tinted or clear glass has been preliminarily planned for use in window panes of the apartments. Thickness will vary from 4mm to 6mm depending upon the situation. Main objective of the glass will be to cut the glare, to ensure clear visibility and allowance of maximum natural light.

9.4 What passive solar architectural features are being used in the building? Illustrate the applications made in the proposed project.

Ans: The building blocks will have vertical and horizontal sun shading protection in the form of fins and chajjas. The design, vertical or horizontal projection of those sun shading devices will be dependent upon the exposure of a particular surface to the sun.

9.5 Does the layout of streets & buildings maximize the potential for solar energy devices? Have you considered the use of street lighting, emergency lighting and solar hot water systems for use in the building complex? Substantiate with details.

Ans: This is a residential complex and there will be sufficient organized as well as incidental open spaces in and around the building blocks. The said open spaces will be developed as park, garden,

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 20 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

lawn, play area etc.; which will be illuminated by solar illumination.

9.6 Is shading effectively used to reduce cooling/heating loads? What principles have been used to maximize the shading of Walls on the East and West and the Roof? How much energy saving has been effected?

Ans: Yes. The shading devices of the building block will designed in such a way that it cuts the glare but allow maximum amount of diffused sunlight. Also, the roofs of the building block will have adequate thermal insulation. However, no special care about the east and west walls of the building have been thought.

9.7 Do the structures use energy-efficient space conditioning, lighting and mechanical systems? Provide technical details. Provide details of the transformers and motor efficiencies, lighting intensity and air-conditioning load assumption? Are you using CFC and HCFC free chillers? Provide specifications.

Ans: For residential apartments prime importance is given on natural wind circulation and illumination. Keeping in that mind, most of the exterior glazing of the building blocks will be openable type. Thus, operable window area within the building will be maximum. Thus, scope of air infiltration through the glazed windows is also maximum. It is expected that air leakage through entrance doors and operable windows (in closed condition) will not exceed 5.0 l/s-m2.

9.8 What are the likely effects of the building activity in altering the micro-climate? Provide a self assessment on the likely impacts of the proposed construction on creation of heat island & inversion effects?

Ans: The proposed construction will not alter the micro-climate of the project site and surroundings significantly. Also, it will not have appreciable impact on creation of heat island and inversion effect due to the following reasons: i) Judicial layout of building blocks within the complex The building block within the complex is laid in such a manner that there remains sufficient amount of external as well as internal open space between the blocks so that the air movement does not get interrupted. ii) Reducing the footprint of building blocks Only 28.66% of the land area will be occupied by building blocks. Thus, 71.34% of the land area will remain as open space (mostly green). Therefore, much lesser heat gain will be over the green surface. iii) Selection of Building Materials The building materials will be selected in such a way that the solar heat gain over the vertical surface and roof is minimized. iv) Trees and Vegetation Sufficient number of shading trees will be planted inside the project site to reduce the air temperature within the project site and surroundings. v) Reduction in Hard Surface Hard surface in the form of metallic road will be kept minimum. The colour of external surfaces of the building blocks will be of lighter shade. The pavements will be of porous and light coloured material and open joints.

9.9 What are the thermal characteristics of the building envelope? (a) roof, (b) external walls; and(c) fenestration? Give details of the material used and the U-values or the R values of the individual components.

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 21 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

Ans: The U and R values of different components to be used in the project, i.e., glass, wall and roof, are as given in the table below: S.No. Component U-Value R-Value 1 Glass Façade 3.3W/ms-°C -- 2 External Wall 0.44 W/m2-°C -- 3 Roof 0.797 W/m2-°C --

9.10 What precautions & safety measures are proposed against fire hazards? Furnish details of emergency plans.

Ans: Proposed project has already applied for obtaining the statutory NOC from fire department. Recommended measures by the said authority will be followed during the operational phase of the project. However, following basic precautions & safety measures have been proposed; . The staircases of the building will be enclosed types. . The staircases will be extended upto the terrace level of the buildings. . Walls of the lift enclosures will be at least two hours fire resisting types. . Adequate refuge area will be provided at the external walls of the buildings . Underground water reservoirs with adequate storage capacities, as recommended by the statutory authority, will be constructed. . Public address systems will be linked between all the floors of the building and the control room . First aid fire fighting arrangement in the style of placing suitable types of portable fire extinguishers, fire-buckets etc. in all floors of the buildings will be provided. . Floor numbers and directional sign of escape route shall be displayed prominently in all floors of the respective building. . Internal road will be sufficiently strong to withstand the load of fire tender.

9.11 If you are using glass as wall material provides details and specifications including emissivity and thermal characteristics.

Ans: Glass will not be used as wall material, as preliminarily assessed.

9.12 What is the rate of air infiltration into the building? Provide details of how you are mitigating the effects of infiltration

Ans: For residential apartments prime importance is given to natural wind circulation and illumination aspect. Moreover, as the complex has substantial open space, incoming breezes is considered as a treasure to the residents of the complex. Keeping that in mind, most of the exterior glazing of the proposed building blocks will be openable type. Thus, operable window area within the building will be maximum. Thus, scope of air infiltration through the glazed windows is also maximum. It is expected that air leakage through entrance doors and operable windows (in closed condition) will not exceed 5.0 l/s-m2.

9.13 To what extent the non-conventional energy technologies are utilized in the overall energy consumption? Provide details of the renewable energy technologies used.

Ans: Following the SEAC recommendation, 1% total connected electricity load will be catered by solar power. Solar energy will be used for internal road area and semi paved area illumination as well as for partial common area illumination. Solar lighting calculation is given below: Proposed Internal Road & Semi Paved area is 15,095.14 sq.m which will be partially illuminated by solar power. Thus, available area for partial solar illumination is 15,095.14 sq.m i.e. 162423.71 sq.ft. Considering external area illumination load as 2.5Watt/sq.m or 0.23 Watt/sq.ft (as per Indian Green

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 22 of 23 Proposed Expansion of Residential Complex at Bhatenda, Rajarhat, 24 Pgs. (North) Form – IA Developer – Ganesh Tracom Private Limited & Others

Building Council Manual), External area power requirement = 162423.71 X 0.23 = 37,357.45 Watt say 37,357 Watt Considering diversity factor = 0.80, required lighting load is 37357 X 0.8 = 29,885.6 Watt i.e. 29.886 kW Considering power requirement of each street light as 0.15 kW, number of street light fixture required 29.886/ 0.15 = 199.24, say 199 nos. 50% of Total Street light fixture to be catered with LED lamps to be catered by solar power. Thus, total number of solar street lighting fixture to be provided is 199 X 50% = 99.5 say 100 nos. Solar Power to be used for partial common area illumination is given below; In our project, total connected load as preliminarily assessed is 4624 kW. Total solar energy to be harvested as per SEAC recommendation is 1% of total connected load i.e. 4624 kW X 1% = 46.24 kW. Out of 46.24 kW, (37.357/2) = 18.68 kW is being used as outdoor solar illumination. Thus, rest (46.24 – 18.68) kW i.e 27.56 kW of Solar Energy will be used for partial common area illumination.

10. ENVIRONMENT MANAGEMENT PLAN

Ans: Enclosed in Annexure-10.0.

Consultant - CENTRE FOR SUSTAINABLE DEVELOPMENT, KOLKATA Page 23 of 23