commercial colony at plot no. m-1, village- samaspur
TRANSCRIPT
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision builders Pvt. Ltd. Page 7
CHAPTER 2
PROJECT DESCRIPTION
2.1 GOAL AND OBJECTIVES OF THE PROJECT
The guiding principles for the spatial development of the Commercial Project are:
To enhance the economic viability, productivity, appearance and function of the area
To develop attractive and highly functional retail and commercial areas that is market
responsive and serves the needs of the society.
Maintain high-quality, environmentally friendly, and efficient infrastructure systems and
networks through regular investment and maintenance to meet the changing needs of the
today and in the future.
2.2 SIGNIFICANCE OF PROJECT AT REGIONAL LEVEL
National Capital Region (NCR) has emerged next only to Bangalore as the commercial
hub of the nation. NCR alone accounts for over 35% of the total FDI inflows into India
(Source: CII).
NCR share is estimated to be around 20 Million sqft (of new built up area), given the
projection estimate of 2 million jobs moving to India (10% within the NCR) in the
next five years.
A large number of Fortune 100 companies are now exploring commercial facilities
from India. Within the commercial market, opportunity areas that emerged during
2002 were engineering design, biotech research, research outsourcing, customer
analytics, market research, equity research.
Areas around Delhi are the fore-runners in this success story. Faridabad has come a
long way, from being a satellite township of Delhi to being the hub for commercial,
Design companies, and MNCs dealing in software and IT services. Faridabad is fast
emerging as a commercial hub, with several large companies operating on a large
scale.
2.3 SIGNIFICANCE OF PROJECT AT LOCAL LEVEL
Achieving land potential in a rational and judicious manner is one of the prime
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision builders Pvt. Ltd. Page 8
objectives of this development. This will be done by minimizing the impact on
environmental resources, enhancing the infrastructure quality to allow uninhibited
freedom for human resource development and provide gainful economic opportunities
for employment. Urban environment on sustainable lines will be developed by
harnessing the existing environmental resources, adopting state of the art technologies
to minimize waste generation (through recycling) and dependency on motorized modes
of transportation.
This part of the district of Gurgaon is experiencing new and an upgraded emerging
trend in terms of improvement in infrastructure, new roads development, etc. As the
area will achieve good connectivity through sector level roads development by HUDA
and through railways/metros, hence these factors are likely to attract the commercial
sectors to come up and set their office. The project lead to following benefits:
Improvement in social infrastructure by providing additional employment
opportunities to the skilled as well as unskilled people;
Trigger growth in the district and in the region as the area will be developed
and will result in associated development;
The planned development with modern infrastructure facilities and source of
income would improve quality of life of local community.
2.4 PROJECT BACKGROUND
The Commercial Colony Project has been developed by M/s Sunvision Builders Pvt. Ltd. The
developer has successfully completed state of the art commercial projects with elite
professionalism. The project is located in Village- Samaspur, Bindapur, Sector-51, Mayfield
Garden, Gurgaon, Haryana on total land measuring 2.692 acre.
2.5 SITE SELECTION CRITERIA
The siting of developmental projects in India is managed by Siting Guidelines for
activities and projects delineated by the MoEF&CC and the CPCB. The overall purpose
of the guideline is to aid project proponents in judiciously selecting project sites,
keeping in mind various environmental settings.
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision builders Pvt. Ltd. Page 9
The site is selected as per the sitting guidelines. The project site and site surrounding
areas do not have any ecological sensitive area and will be designed to minimize the
environmental impact associated with the development.
The design brief places a strong emphasis on achieving a high level of environmental
performance, durability, and healthy indoor air quality through integrated design, best
practices and emerging technologies. Sustainability is integrated into all phases of the
design process using an integrated approach which balances social, economic, and
environmental factors.
2.6 NATURE AND SIZE OF THE PROJECT
The commercial colony Project will be developed over a total area of 10, 898.16 m2
(2.692 acre) and estimated built-up area of 32,331.99 m2 in Village- Samaspur,
Bindapur, Sector-51, Mayfield Garden, Gurgaon, Haryana.
The project comprise of office and shops. It will also involve development of internal
roads, sewer and storm water pipe network, waste management system, etc. along with
landscape areas within the project premises.
2.7 PROJECT SITE LOCATION
The project site is strategically located within the National Capital Region (NCR) of New
Delhi, in the State of Haryana. The site falls in the Village- Samaspur, Bindapur, Sector-
51, Mayfield Garden, Gurgaon, Haryana. The site is advantageously connected through
netaji subhash marg which is adjacent to the project site.
The nearest railway station is Gurgaon Railway Station, about 8.49 km away from the project
site in WNW direction. Indira Gandhi International Airport is 11.88 km away in N direction.
The location of the project site on the 500m Buffer Map and SoI Toposheet is given in
Figure 2.1 and Figure 2.2 respectively.
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision builders Pvt. Ltd. Page 10
Figure 2.1 Location of the Project Site on 500 m Buffer Map
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 11
2.8 ENVIRONMENTAL SENSITIVITY WITHIN 10 KM AND 15 KM
RADIUS OF THE PROJECT SITE
The map showing environment sensitivity within a radius of 10 km 15 km of the
project site is shown in Figure 2.2.
Fig. 2.2: SOI Toposheet Showing 10 and 15 km radius around Project site
2.9 SITE CONNECTIVITY
The connectivity of the site is as follows:
Road – At present the main connecting road to the site is netaji subhash marg located
adjacent to the project site, in E.
Rail –– The site is well connected to the rail network through the northern railway main
line and the nearest railway station is Gurgaon Railway Station at a distance of about
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 12
8.49 kms towards the WNN direction. The existing nearest metro station to the site is
HUDA city center which is located at a distance of approximately 2.65 km (NNE).
Air – The nearest airport from the site is Indira Gandhi International Airport, located at
a distance of 11.88 km towards the North side of the project site.
2.10 SITE AND SITE SURROUNDINGS WITHIN 500 M BOUNDARY OF
PROJECT SITE
The site is an undulating terrain with considerable variation in the highest and lowest
contour level. The site slopes slightly from West towards East. The site surroundings
comprise of rural setup and the land use in the surrounding area comprises of villages
with residential set up and barren land. The details of the surrounding features have
been given below
North: On the northern side of the project site, Neta Ji shubhash marg is located at a
distance of approx. 20 m.
South: Blossoms II, Mayfield Gardens lies adjacent to the project site in the South
direction.
East: Neta Ji shubhash marg is located at a distance of approx. 20 m in East direction of
the project site.
West: SH-13 is located at a distance of approx. 0.18 km in west direction from the
project site
2.11 PROJECT SITE PHOTOGRAPH
The photographs of the project site are shown below in Figure 2.3.
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 13
Figure 2.3 Site Photographs
2.12 PROJECT COMPONENT
2.12.1 Development Concept
The planning of the commercial development has been largely governed by the
manmade and the natural attributes of site. The project comprise of:-
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 14
a) Offices
b) Shops
Two level basements are developed for the said project.
Pedestrian pathways and footpaths of adequate widths are provided for pedestrian safety
and to reduce the vehicular movement within the site.
2.12.2 Land Use Distribution and Area Statement
The project has total area of 10,898.16 m2 (or 2.692 acres), which is located at Village-
Samaspur, Bindapur, Sector-51, Mayfield Garden, Gurgaon, Haryana.
The detailed area statement is provided below in Table 2.1 and Table 2.2.
Table 2.1 (a) Detailed Area Statement
SI.
No. Particulars Area (in m2)
1. Plot Area 10,898.16
2. Permissible Ground Coverage (@ 50%) 5449.08
3. Achieved Ground Coverage (@ 38.123%) 4154.71
4. Permissible FAR*(@ 1.75) 19,071.78
5. Achieved FAR (@ 1.735 of Plot Area) 18,909.41
6. Built Up Area 32,331.99
7. Landscape Area (@ 30.51% Plot Area)
Area under Shelter belt and avenue
plantation (@ 20.51%)
Area under Herbs, shrubs parks,
landscaping, and climber plants (@ 5 %)
Area under Water body: In saucer shape (@
5%)
3,326
2,236.10
544.91
544.91
8. Basement area (Including Services)
Basement 1
Basement 2
13,422.58
6711.29
6711.29
9. Service area 10522.58
10. Maximum Height of Building 31.10
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 15
Table 2.1 (b): FAR Breakup
Sr. No. Particulars Area (m2)
1. Ground floor covered area 4154.71
2. First floor covered area 3981.08
3. Second floor covered area 3386.20
4. Third floor covered area 2805.55
5. Fourth floor covered area 2559.82
6. Fifth floor covered area 2022.05
Total covered area 18909.41
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 16
Table 2.3 Status of Construction undertaken till date
S.
NO.
TOWER
NO./NAME
APPROVED
AS PER
BUILDING
PLAN
(FLOOR-
WISE)
CONSTRUCTION
CARRIED OUT
TILL DATE
(FLOOR-WISE)
APPROVED
AS PER
BUILDING
PLAN (AREA-
WISE)
CONSTRUCTION
CARRIED OUT
TILL DATE (AREA-
WISE)
CONSTRUCTION
CARRIED OUT (%)
1 Tower G + 5 Floors G + 5 Floors 18,909.41 m2 18,909.41 m2 100 %
2 Basement I & II
(including services)
Basement I &
II Basement I & II 13,422.58 m2 13,422.58 m2 100 %
TOTAL 32,331.99 m2
32,331.99 m2 100 %
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 17
2.12.3 Project Site Section and Elevation
The maximum height of the building is 37.10 m including 6m DG sets stack height.
The permission for building height has been obtained from Airport Authority of India
(AAI), copy enclosed as Annexure-X.
The section and elevation plan is attached as Annexure-XII.
The details of population are given below in Table 2.4.
Table 2.4: Population Details
S.
No.
Unit Type Nos./Area PPU/Person/m2 Total
Population
1. Shops 9454.71 @ per 3 sq m 3152
Staff
@ 15% of Shops
population
472
Visitors @ 85% of Shops
population
2680
2. Office 9454.71 @ per 6 sq m 1576
Staff
@ 85% of office
population
1340
Visitors
@ 15% of office
population
236
Grand Total 4,728
2.13 UTILITIES PROPOSED DURING CONSTRUCTION AND OPERATION
PHASE
The infrastructure facilities planned for the project are highlighted in following sub-
sections and explained in detailed under Chapter 6.
2.13.1 Water Requirement and Supply
2.13.1.1 Water Requirement
During the operation phase, total water demand for the project is about 101 KLD. The
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 18
daily water demands of the project are given below in Table 2.4:
Table 2.5 Calculations for Daily Water Demand
S.
No.
Description Occupancy Rate of Water
Demand (lpcd)
Water Requirements
(KLD)
Fresh Flushing Fresh Flushin
g Total
A. Domestic Water Requirement
(i) Visitors 2916 5 5 14.48 14.48 29.16
(ii) Staff 1812 15 15 27.18 27.18 54.36
Total Domestic Water Requirement 41.66
say 42
KLD
41.66
say 42
KLD
83.52
KLD
Say 84
KLD
B. Horticulture
(3326 m2)
@ 5 l/sqm
17 KLD
Total Water Requirement 101 KLD
Table 2.6: Waste Water Generation Calculation
Domestic Water Requirement 84 KLD
Fresh 42 KLD
Flushing 42 KLD
Waste Water Generated (80% fresh of domestic + 100%
flushing)
34+42= 76 KLD + 6 =
82
STP Capacity 100 KL
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 19
FIGURE 2.4: WATER BALANCE DIAGRAM (SUMMER SEASON)
Recycled Water
FRESH WATER
(42 KLD)
SULLAGE GENERATED
(76 + 6 KLD)
STP CAPACITY 100 KL
HORTICULTURE
(17 KLD)
@ 80%
FLUSHING
(42 KLD)
@ 100%
Sullage
42 KLD
Discharge to Sewer
Only After Treatment (9.4 KLD)
@ 90 % 68.4
KLD
Wet Sludge
(7.4 KLD)
(98% of total untreated
water)
Evaporated water (0.2
KLD) (2% of total untreated
water)
@ 10 %
7.6 KLD
0.2 KLD
7.4 KLD
*Considering horticulture water demand @ 5 l/sqm
17 KLD
@ 80% of 6
KLD
9.4 KLD
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 20
Figure 2.5: WATER BALANCE DIAGRAM (MONSOON SEASON)
Recycled Water
FRESH WATER
(42 KLD)
SULLAGE GENERATED
(76 + 6 KLD)
STP CAPACITY 100 KL
HORTICULTURE
(2 KLD)
@ 80%
FLUSHING
(42 KLD)
@ 100%
Sullage
42 KLD
Discharge to Sewer
Only After Treatment (24.4 KLD)
@ 90 % 68.4
KLD
Wet Sludge
(7.4 KLD)
(98% of total untreated
water)
Evaporated water (0.2
KLD) (2% of total untreated
water)
@ 10 %
7.6 KLD
0.2 KLD
7.4 KLD
*Considering horticulture water demand @ 0.5 l/sqm
2 KLD
@ 80% of 6
KLD
24.4 KLD
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 21
Figure 2.6: WATER BALANCE DIAGRAM (WINTER SEASON)
Recycled Water
FRESH WATER
(42 KLD)
SULLAGE GENERATED
(76 + 6 KLD)
STP CAPACITY 100 KL
HORTICULTURE
(6 KLD)
@ 80%
FLUSHING
(42 KLD)
@ 100%
Sullage
42 KLD
Discharge to Sewer
Only After Treatment (20.4 KLD)
@ 90 % 68.4
KLD
Wet Sludge
(7.4 KLD)
(98% of total untreated
water)
Evaporated water (0.2
KLD) (2% of total untreated
water)
@ 10 %
7.6 KLD
0.2 KLD
7.4 KLD
*Considering horticulture water demand @ 1.8 l/sqm
6 KLD
@ 80% of 6
KLD
20.4 KLD
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 22
Sullage Generation & Treatment
It is expected that the project will generate approx. 82 KLD of wastewater. The wastewater
will be treated in onsite STP of 100 KL capacity.
2.13.1.2 Water Source
During construction phase, STP treated effluent was provided through Private Water
Tankers by HUDA. During operation phase, the source of fresh water supply will be
HUDA.
2.13.2 Sewage System
During the Construction Phase, waste water generated from labour camp & project site,
which was disposed off through mobile type toilets/modular STP. During Operation
Phase, it is expected that the project will generate approx. 82 KLD of waste water
which will be treated in existing STP of capacity 100 KL. The treated effluent from
existing STP will be reused within project site for flushing and horticulture.
FAB TECHNOLOGY
Sewerage System
An external sewage network shall collect the sewage from all units, and flow by gravity to
the sewage treatment plant.
Following are the benefits of providing the Sewage Treatment Plant in the present
circumstances:
Reduced net daily water requirements, source for Horticultural purposes by utilization
of the treated waste water.
Reduced dependence on the public utilities for water supply and sewerage systems.
Sludge generated from the Sewage Treatment Plant shall be rich in organic content
and an excellent fertilizer for horticultural purposes.
a. Sullage Details
(a) Daily load : 82 KLD
(b) Duration of flow to CSTP : 24 hours
(c) Temperature : Maximum 32oC
(d) pH : 7 to 9.5
(e) Colour : Mild
(f) T.S.S. (mg/l) : 100-400 mg/l
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 23
(g) BOD5 (mg/l) : 200-300 mg/l
(h) COD (mg/l) : 500-700 mg/l
b. Final discharge characteristics
(a) pH : 6.5 to 7.5
(b) Oil & Grease : <10 mg/l
(c) B.O.D. : <10 mg/l
(d) C.O.D. : <50mg/l
(e) Total Suspended Solids : <10 mg/l
c. Treatment Technology
The technology is based on attached growth aerobic treatment followed by clarification by a
tube settler. Lime will be dosed in for suppression of foaming tendencies. The clarified water
will be filtered in a pressure sand filter after dosing of coagulant (alum) for removal of
unsettled suspended impurities. This water will be passed through an activated carbon filter
for removal of organics. The filtered water from ACF is then UV treated& stored in the
flushing tank.
The attached growth fluidized aerobic bed reactor (FAB) process combines the biological
processes of attached & suspended growth. It combines submerged fixed film with extended
aeration for treatment of the waste water.
The waste water after screening is collected in an equalization tank. The equalization tank is
required for preventing surges in flow & facilitating equalization of characteristics over the
entire quantity of effluent in a given time. A provision for pre-aeration is made in the
equalization tank in order to ensure mixing & to prevent the sewage from going septic.
The equalized sewage is then pumped into the FAB reactor for biological processing. The
water enters the bottom of the reactor & flows up through the fixed film media which grossly
enhances the hydraulic retention time & provides a large surface area for growth of biological
micro – organisms. The FAB reactor is aerated by fine pore sub – surface diffusers which
provide the oxygen for organic removal. The synthetic media floats on the water & the air
agitation ensures good water to micro-organism contact.
The FAB treatment is an attached growth type biological treatment process where in, the
majority of biological activity takes place on the surface of the PVC media. Continuous
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 24
aeration ensures aerobic activity on the surface of the media. Micro – organisms attach
themselves on the media & grow into dense films of a viscous jelly like nature. Waste water
passes over this film with dissolved organics passing into the bio-film due to concentration
gradients within the film. Suspended particles & colloid may get retained on this sticky
surface where they are decomposed into soluble products. Oxygen from the aeration process
in the waste water provides oxygen for the aerobic reactions at the bio-film surface. Waste
products from the metabolic processes diffuse outward & get carried away by the waste water
or air currents through the voids of the media.
The aerated effluent passes into a tube deck settler for clarification. The theory of gravity
tube settler system is that the carrier fluid maintains laminar flow in the settling media at
specified maximum viscosity. These two parameters of a carrier fluid, flowing through a
hydraulic configuration, will determine the velocity gradients of the flow, the height of
boundary layer at the inclined surface and the residence time within the media.
The carrier fluid must be viscous Newtonian, exhibiting a Reynolds number of less than 1000
and preferably, a number under 400. The laminar flow, through the inclined tubes, will
produce velocity gradients sufficiently large to form an adequate boundary layer, where the
velocity of fluid approaches zero. Boundary layers are necessary in functioning tube settlers,
to allow suspended solids to separate from the viscous carrier fluid. Under gravitational
forces, they will settle to the hydraulic surface of the tube and subsequently from the clarifier
media.
Since the tubes are inclined at 60 degrees, solids settled on the tubes are continually
discharged down. This downward rolling action increases particle contact and hence further
agglomeration, which increases the sludge settle ability. Studies show that these
agglomerated sludge particles can have a settling rate in excess of ten times the settling rate
of the individual floc particles in the influent. These heavy agglomerated masses quickly slide
down the 60 degree inclined tube and settle at the bottom of the tank.
At the bottom of the Tubedeck, where the sludge leaves the Tube surface, the larger
agglomeratedcaptures smaller particles in the upcoming stream. This solid contact
phenomenon greatly enhances the capture efficiency.
Stages of Treatment: The treatment process consists of the following stages:
Equalization
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 25
Bio- Degradation
Clarification & Settling
Filtration
Figure 2.7: Schematic Diagram of STP
Sewer System
The alignment and slope of the sewer line will follow the road network, drains or natural
ground surface and will be connected to the trunk sewers. The discharge point will be a
treatment plant, a pumping station, a water course or an intercepting sewer. Pumping stations
would be provided at places where the natural slope of the terrain is insufficient to permit
gravity flow or the cost of excavation is uneconomical to do the same.
2.13.3 Rainwater Harvesting System
The storm water collection system for the premises shall be self-sufficient to avoid any
collection/stagnation and flooding of water. The amount of storm water run-off depends upon
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 26
many factors such as intensity and duration of precipitation, characteristics of the tributary
area and the time required for such flow to reach the drains. The drains shall be located near
the carriage way along either side of the roads. Taking the advantage of road camber, the
rainfall run off from roads shall flow towards the drains. Storm water from various plots/shall
be connected to adjacent drain by a pipe through catch basins. Therefore, it has been
calculated to provide 3 rainwater harvesting pits at selected locations, which will catch the
maximum run-off from the area.
1) Since the existing topography is congenial to surface disposal, a network of storm
water pipe drains is planned adjacent to roads. All building roof water will be brought
down through rain water pipes.
2) storm water system consists of pipe drain, catch basins and seepage pits at regular
intervals for rain water harvesting and ground water recharging.
3) The peak hourly rainfall of 45 mm/hr shall be considered for designing the storm
water drainage system.
4) For basement parking, the rainwater from ramps will be collected in the basement
storm water storage tank. This water will be pumped out to the nearest external storm
water drain.
Rain water harvesting has been catered to and designed as per the guideline of CGWA. Peak
hourly rainfall has been considered as 45 mm/hr. The recharge pit of effective diameter and
depth, of a Recharge pit is 3 m and 4 m respectively is constructed for recharging the water.
The ground water level in the area is 40-52 meters bgl. The bottom of the recharge structure
will be kept 5 m above the water table. At the bottom of the recharge well, a filter media is
provided to avoid choking of the recharge bore. Design specifications of the rain water
harvesting plan are as follows:
Catchments/roofs would be accessible for regular cleaning.
The roof will have smooth, hard and dense surface which is less likely to be damaged
allowing release of material into the water. Roof painting has been avoided since most
paints contain toxic substances and may peel off.
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 27
All gutter ends will be fitted with a wire mesh screen and a first flush device would be
installed. Most of the debris carried by the water from the rooftop like leaves, plastic
bags and paper pieces will get arrested by the mesh at the terrace outlet and to prevent
contamination by ensuring that the runoff from the first 10-20 minutes of rainfall is
flushed off.
No sewage or wastewater would be admitted into the system.
No wastewater from areas likely to have oil, grease, or other pollutants has been
connected to the system.
Calculations for storm water load
Roof-top area = Ground Coverage = 4154.71 m2
Green Area = 3326 m2
Paved Area = Total Plot Area – (Roof-top Area + Green Area)
= 10898.16 – (4154.71 + 3326)
= 3,418.16m2
Runoff Load
Roof-top Area = Ground Coverage = 4154.71 x 0.045 x 0.8 = 149.56 m3/hr
Green Area = 3326 x 0.045 x 0.1= 14.96 m3/hr
Paved Area = 3,418.16 x 0.045 x 0.75 = 115.36 m3/hr
Total Runoff Load = Roof top Area + Green Area + Paved Area
=149.56 +14.96 + 115.36 m3/hr
= 279.88 m3/hr
Taking 15 minutes Retention Time, Total volume of storm water = 279.88/4= 69.97 m3
Taking the effective length, Width and Depth of a Recharge pit 3 m and 4 m respectively,
Volume of a single Recharge pit = πr2h m3= 3.14 x 1.5 x 1.5 x 4 = 28.26 m3
Hence No. of pits required = 69.97/28.26 = 2.47 Pits.
As 1 pit/acre is required so, total 3 rain water harvesting pits will be required for 2.69 acre
land.
Total No. of 3 Rain Water Harvesting pits are constructed for artificial rain water recharge
within the project premises.
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 28
FIGURE 2.8: TYPICAL RAIN WATER HARVESTING PIT DESIGN
2.13.4 Power Requirement and Supply
The power supply will be supplied by Dakshin Haryana Bijli Vitran Nigam (DHBVN). The
connected load for the Commercial colony Project will be approx. 2,300 kW (2,705.88
KVA).
There is provision of 3 no. of DG sets of total 3,250 KVA capacity (1 × 1500 kVA + 1 × 250
kVA) and 1X1500 on standby mode for power back up in the Project. The DG sets will be
equipped with acoustic enclosure to minimize noise generation and adequate stack height for
proper dispersion.
2.13.5 Parking
Adequate provision will be made for car/vehicle parking at the project site. There shall also
be adequate parking provisions for visitors so as not to disturb the traffic and allow smooth
movement at the site.
Parking Required:
As per MoEF&CC norms and Haryana bye-laws:
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 29
For commercial facilities =1ECS/50 m2 of FAR
=18909.41/50 = 377.078
Total parking required as per MoEF norms = 378 ECS
Parking Proposed:
Area proposed for Open parking (Mechanical Parking) = 2164.16 m2
Area required for 1 ECS of open parking = 25 m²
Parking proposed for open parking = 78 ECS
Area proposed for Basement I parking = 5261.29 m2
Area required for 1 ECS of Basement parking = 35 m2
Parking proposed for Basement I parking = 150 ECS
Area proposed for Basement II parking = 5261.29 m2
Area required for 1 ECS of basement parking = 35 m2
Parking proposed for Basement II parking = 150 ECS
Total Parking proposed = 378 ECS
2.13.6 Municipal Solid Waste Management
Solid waste would be generated both during the construction as well as operation phase. The
solid waste generated during the construction phase was comprise of excavated materials,
used bags, bricks, concrete, MS rods, tiles, wood etc. The following steps are proposed to be
followed for the management solid waste:
Construction yards are provided for storage of construction materials.
The excavated material such as topsoil and stones was stacked for reuse during later
stages of construction
Excavated top soil will be stored in temporary constructed soil bank and will be
reused for landscaping.
Remaining soil shall be utilized for refilling / road work / rising of site level at
locations/ selling to outside agency for construction of roads etc.
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 30
Figure 2.9: Solid Waste Management Scheme (Construction Phase)
During the operation phase, waste will comprise of domestic as well as landscape waste. The
solid waste generation shall be approx. 890.56 kg per day (@ 0.25 kg per capita for staff, @
0.15 kg per capita per day for the visitor, 0.25 kg per capita per day for the maintenance staff
members, landscape waste @ 0.2 kg/acre/day).
Table 2.7: Calculation of Solid Waste Generation
S. No. Category kg per capita per day Waste generated
(kg/day)
1. Staff 1812 @ 0.25 kg/capita/day 453
2. Visitors 2916 @ 0.15 kg/capita/day 437.4
3. Landscape waste
(0.821 acres) @ 0.2 kg/acre/day 0.164
TOTAL SOLID WASTE GENERATED 890.56 kg/day
Following arrangements will be made at the site in accordance to Municipal Solid Wastes
(Management and Handling) Rules, 2016.
Collection and Segregation of waste
1. The local vendors will be hired to provide separate colored bins for dry recyclable
and bio-degradable waste.
Solid Waste
Construction
Waste
Construction waste,
Broken Bricks,
Waste Plaster
Empty Cement
Bags
Used in re-filling,
raising site level
Sold to agency for
recycling
Excavated Soil
Top soil conserved for landscaping,
balance used in re-filling
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 31
2. For waste collection, adequate number of colored bins (Green and Blue & dark
grey bins– separate for Bio-degradable and Non Bio-degradable) are proposed to
be provided at the strategic locations within the project site.
3. Litter bin will also be provided in open areas.
Treatment of waste
Bio-Degradable waste
1. Bio-degradable waste will be subjected to composting by organic waste converter and
the compost will be used as manure.
2. STP sludge is proposed to be used for horticultural purposes as manure.
3. Horticultural Waste is proposed to be composted and will be used for gardening
purpose.
Recyclable waste
i. Grass Recycling – The cropped grass will be spread on green area. It will act as
manure after decomposition.
ii. Recyclable wastes like paper, plastic, metals etc. will be sold off to recyclers.
iii. E-waste will be disposed through local approved e-waste recycling agency.
Disposal
Recyclable and non-recyclable waste will be disposed through approved agency.
Solid waste management Scheme is depicted in the following figure:
Figure 2.10: Solid Waste Management Scheme (Operation Phase)
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 32
2.13.8 Energy Conservation Measures
Appropriate energy conservation measures & management plan will be adopted in order to
minimize the consumption of non-renewable fuel.
The details of measures adopted along with details of percentage saving are described in
the Environment Management Plan (Chapter – 6).
2.13.9 Fire Safety Facilities
Firefighting system will be designed as per the provisions of National Building Code
(NBC) of India 2016 and Fire Protection Manual issued by Tariff Advisory Committee
and the latest Indian and International standards/codes. The fire protection system will
cover the entire internal and external premises of the buildings.
Following systems are planned to be provided for the building:
>An automatic sprinkler system,
>External yard hydrant system,
>Hose reel system
>Fire extinguisher system
>Fire water storage system, etc.
2.13.10 Building Materials and Technologies for Construction
The building materials will be purchased from reputed local manufacturers with valid test
certificates only and preference with be given to local markets. All material will be
delivered to site and shall be processed for final installation at site only. List of building
materials being used at site:
1. Coarse sand
2. Fine sand
3. Stone aggregate
4. Stone for masonry work
5. Cement
6. Reinforcement steel
7. Pipe scaffolding (cup lock system)
Commercial Colony
At plot no. M-1, Village- Samaspur, Bindapur, EIA/EMP REPORT
Sector-51, Mayfield Garden,
Gurgaon, Haryana
M/s Sunvision Builders Pvt. Ltd. Page 33
8. Bricks
9. CLC fly ash blocks
10. Crazy (white marble) in grey cement
11. P.V.C. conduit
12. MDS, MCBs
13. PVC overhead water tanks
14. 2 1/2'’ thick red color paver tiles
15. PPR (ISI marked)
16. PVC sullage lines
17. S.W. sewer line up to main sewer
18. PVC rain water down take
19. Stainless steel sink in kitchen
20. Joinery hardware- ISI marked
2.14 RESOURCE AND MANPOWER
To the maximum extent possible, local labor has been employed during construction
phase. However, semi-skilled manpower and technical personnel has been hired from
outside. During the peak period of construction, approximately 200 labor has been hired
for the development, out of which mostly has been hired from nearby areas and few of
them has resided in labour camp that has been developed on temporary basis & was
destroyed the same after completion of construction phase.
2.15 PROJECT COST
The total project cost including the land cost and construction cost is INR 92.9 Crore.