phoenix embassy tech zone pvt. ltd. (commercial office...

Addendum to EIA report PHOENIX

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1.0 INTRODUCTION

Phoenix is a corporate conglomerate with business interests in Realty, Automobiles, Power

and Mining.

Our roots firmly entrench the larger context of deep-seated knowledge about the domains

we operate in. Though we have our presence in varied industries, we see realty as our

primary growth engine. Our projects are staggering testimonies to luxury and comfort. We

are working towards creating a unique world of our own. From blueprint to execution,

Phoenix leaves its predominantly identifiable legacy on each project.

VISION

To be a leader in the infrastructure and construction sectors, set new benchmarks and

make Phoenix a name that the world can instantly associate with as a company capable of

executing any major project with professional ease and expertise.

MISSION

To excel in delivery of work.

To adhere to the highest standards of professional ethics.

To be a collective group focused on new technologies, new trends, and implement

them first.

To introduce several 'firsts' in the industry.

To maintain transparency with our Investors, Associates, Clients, Service Providers,

Employees and contribute to the society at large.

Phoenix Embassy Tech Zone Private Limited, (group company of Phoenix group) has

proposed to construct commercial office complex at Sy. No. # 118, 120, 121, 122 & 138,

Nanakramguda Village, Serilingampalli Mandal, Rangareddy District, Telangana accordingly

obtained Environmental clearance vide order no. SEIAA / TS / RRD – 216 / 2018 dated 26-

04-2018.

Now due to some techno economical reasons it has been been proposed to revise the Built-

up area.

Comparative statement showing the revised areas and earlier areas are shown below

Addendum to EIA report PHOENIX EMBASSY TECH ZONE PVT. LTD. Commercial Office complex

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COMPARATIVE STATEMENT OF THE BUILT-UP AREA AS PER THE ENVIRONMENTAL CLEARANCE ISSUED AND PROPOSED REVISION

Tower Configuration BUILT-UP AREA (SQ.M)

Change As per old EC proposed old EC Proposed

Tower # A 17 upper floors + mumty 29 upper floors 1,22,564.27 69,339.00 (-) 53,225.27

Tower # B 23 upper floors + mumty 29 upper floors 1,17,323.84 1,00,536.04 (-) 16,787.80

Tower # C 23 upper floors + mumty 29 upper floors 1,17,323.84 1,00,543.29 (-) 16,780.55

Tower # D 23 upper floors + mumty 29 upper floors 1,34,304.25 1,00,543.29 (-) 33,760.96

Tower # E -- 29 upper floors -- 1,00,543.29 (+) 1,00,543.29

Tower # F -- 27 upper floors -- 40,424.13 (+) 40,424.13

Amenities block 5 upper floors + mumty 3 upper floors 12,059.61 6,338.13 (-) 5,721.48

Total - A 5,03,575.81 5,18,267.17 14,691.36

Stilt floors

Tower # A

Stilt floors - 1, 2, 3, 4, 5, 6 & 7 Stilt floor - 1

1,48,963.19

30,324.24 (-) 1,18,638.95

Tower # B

Tower # C

Tower # D

Tower # E

Tower # F

Total – B 1,48,963.19 30,324.24 (-) 1,18,638.95

Basements

Tower # A

Basement - 1, 2, 3 & 4 Basement - 1, 2, 3 & 4 1,77,956.82 2,04,741.00 (+) 26,784.18

Tower # B

Tower # C

Tower # D

Tower # E

Tower # F

Total - C 1,77,956.82 2,04,741.00 (+) 26,784.18

Total (A + B + C) 8,30,495.82 7,53,332.41 (-) 77,163.41


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COMPARATIVE STATEMENT OF THE BUILT-UP AREA AS PER THE ENVIRONMENTAL CLEARANCE ISSUED AND PROPOSED REVISION

S.No Parameter As per EC issued Amendment proposed Remarks

1. Built-up area 8,30,495.82 Sq.m 7,53,332.41 Sq.m Built-up area decreased

2.

Configuration of the project

8,30,495.82 Sq.m (includes 4 Towers & Food court

Tower # A – 4 Basements + 7 stilt floors + 17 upper floors + mumty

Tower # B, C & D - 4 Basements + 7 stilt floors + 23 upper floors + mumty

Food court – 4 basements + Ground floor + 5 upper floors + mumty )

7,53,332.41 Sq.m (includes 6 Towers & Amenities

Tower # A, B, C, D & E – 4 Basements + 1 stilt floor + 29 upper floors

Tower # F - 4 Basements + 1 stilt floors + 27 upper floors

Food court – 3 upper floors )

Configuration changed

3. Type of the building IT / ITES towers Commercial Office complex Changed

4. Parking area

3,29,195.01 Sq.m Four wheelers : 6000 Two wheelers : 6000

2,35,065.24 Sq.m Four wheelers : 4500 Two wheelers : 4500

Parking area reduced

5. Project cost Rs. 1500 Crores Rs. 1500 Crores No change in project cost

6.

Water requirement 2,409 KLD

(Fresh water – 1341 KLD Treated waste water – 1068 KLD)

2,409 KLD (Fresh water – 1341 KLD

Treated waste water – 1068 KLD)

No change in total water requirement but change in Fresh water and treated

waste water due to change in NBC norms

7. Waste water generation 2211 KLD 2141 KLD

Reduction of waste water generation due to change in

change in NBC norms

8. STP capacity 4 x 600 KLD 4 x 600 KLD

No change in STP capacity proposed

9. Municipal solid waste generation

14.4 TPD 14.4 TPD No change in solid waste

generation

10. STP sludge 221.1 Kg/day 214.1 Kg/day

Reduction of STP sludge generation.


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2.0 DETAILS ABOUT THE PROJECT SITE

Latitude : 17°25'16.34"N 78°20'31.95"E

Location : Sy. No. # 118, 120, 121, 122 & 138,

Nanakramguda Village,

Serilingampalli Mandal, Rangareddy District,

Telangana

Type of the area : The project site area is dry, barren and rocky area

Surroundings of the project site :

North Private building

East Private building

South road

West Private building

Topography : Topography of the site is flat without many

undulations

Topographical map showing the site and other features is shown in Fig 2.1

Site surrounding map is furnished in Fig 2.2


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3.0 DETAILS OF THE PROJECT

The following are the brief details of the proposed Commercial office complex project after proposed amendment

S.No Details Description

I. Total Land Area Total: 59,885.3 Sq.m (14.8 acres)

II. Location of the site Sy. No. # 118, 120, 121, 122 & 138

III. Expected project cost Rs. 1500 Crores

IV. Total built-up area 7,53,332.41 Sq.m

(includes 6 Towers & Amenities

• Tower # A, B, C, D & E – 4 Basements + 1 stilt

floor + 29 upper floors

• Tower # F - 4 Basements + 1 stilt floors + 27

upper floors

• Food court – 3 upper floors )

V. Water Requirement Water required for the commercial office complex will

be sourced from HMWSB & Ground water resources.

Total water requirement will be 2409 KLD (Fresh

water – 1,341 & treated waste water – 1,068 KLD)

VI. Power requirement 50 MW

VII. Solid waste generation During operational phase:

Municipal solid waste : 14.4 MT/day

VIII. Connectivity The site is well connected by ISB road connecting Old

Mumbai Highway & Outer ring road

IX. Additional facilities DG Sets

Sewage Treatment Plant

X. Back up supply 32 x 2000 KVA DG sets will be installed for backup

power supply

XI. Parking facilities Total parking area : 2,35,065.24 Sq.m

Four wheelers : 4500

Two wheelers : 4500


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TABLE 1.1 BUILT-UP AREA STATEMENT

S.No Description Gross BUA

1. Tower – A (29 upper floors ) 69,339.00

2. Tower – B (29 upper floors ) 1,00,536.04

3. Tower – C (29 upper floors ) 1,00,543.29

4. Tower – D (29 upper floors ) 1,00,543.29

5. Tower – E (29 upper floors ) 1,00,543.29

6. Tower – F (27 upper floors ) 40,424.13

7. Food court (3 upper floors) 6,338.13

Sub - Total – A 5,18,267.17

1. Stilt floor – 1 ( Tower # A, B, C, D, E & F) 30,324.24

2. Basement Floor-1 (B1) 51,195.42



5. Basement Floor-4 (B4) (Stack) 51,181.86

Sub - Total – B 2,35,065.24

Total (A + B) 7,53,332.41

3.1 RAW MATERIALS

Raw materials are required for constructing walls, roofs, openings, panels, super structure

and paving purpose.

Walls: Fly ash-based lightweight aerated concrete blocks will be used for construction of

walls and rattrap bond method will be followed. This system of bonding saves 25% of the

total number of bricks and 40% of the mortar

Roof: pre-cast / aerated cellular concrete roofing slabs have been used for constructing

roof structures. These structures have high rating to fire resistance and provide better

insulation.

Openings: Precast RCC doors and window frames will be used for openings wherever it is

feasible. These are cheaper, stronger, fire resistant, and termite resistant, sustain

temperature and humidity variations and are effective substitutes to timber / wood.

Super structure: Light weight concrete will be made and mixed with conventional mix for

constructing super structure. Aluminum powder when added to lime reacts and form


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hydrogen bubbles and light weight cementitious material is formed. This material is high

strength to weight ratio and an insulation value of R-10 in a 20.32 cm thick wall.

Paving of roads: Grass pavers will be used on the road, parking and pedestrian areas.

Grass pavers will

Reduce heat island effect

Minimize storm water runoff

Beneficial for localized aquifer recharge

Source of Raw materials

All the raw materials required for the proposed commercial office complex will be sourced

from in and around Hyderabad

3.2 WATER REQUIREMENT

Water consumption in the proposed commercial office office complex is estimated to be

about 2409 KLD. Net water requirement after utilization treated waste water will be 1341

KLD only.

Water required for the proposed commercial office complex project will be met through the

municipal piped water supply.

29 KLD will be the water requirement during construction period.

The following is the break-up of the total water consumption for project.

Water Requirement for Domestic and flushing:

Description No. of Persons LPCD Water Requirement, KLD

Domestic Flushing Total Domestic Flushing Total

Employees 50,000 25 20 45 1250.0 1000.0 2250.0

Food court 1200 40 30 70 66.0 18.0 84.0

Visitors 2000 6 9 15 25.0 50.0 75.0

Total 1341 1068 2409


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Break-up of Water Requirement (in KLD)

Requirement Quantity, KLD Source

Domestic 1341 Municipal water supply

Flushing 1068 Treated wastewater

Total Water Demand 2409

3.3 WASTEWATER GENERATION

In the proposed project the waste water generated during construction will be sanitary

wastewater which will be treated in septic tank followed by soak pit.

Total waste water generation during the operation of commercial office complex will be

2141 KLD. The waste water generated will be treated in separate specifically designed STP

and treated waste water will be utilized for flushing operations, HVAC and greenbelt

development and remaining will be discharged into the municipal drain.

3.3.1 WATER BALANCE

WATER BALANCE

Input in KLD Output in KLD

Fresh water 1341 Treated waste water for flushing 1068

Recycled

water

1068 Treated waste water for HVAC 1061

Treated waste water for greenbelt

development 12

Consumption / Evaporation 268

TOTAL 2409 TOTAL 2409

3.4 CONSTRUCTION OF COMMERCIAL OFFICE COMPLEX

In the construction process the following activities will be taken up phase wise manner.

The activities are summarized as below.

S. No. Type of Work

1. Excavation for Foundations

2. Foundation PCC, Concrete, Plinth Beam

3. Slab laying


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4. Electrical works

5. Brick work

6. Plumbing & Drainage work

7. Stair case for all floors

8. Fixing of Doors & windows

9. Water Proofing works

10. Electrical wiring & Fixtures

11. Fixing of sanitary fittings

12. Plastering works

13. Painting work

14. STP Construction

15. Over head & Underground tank construction

16. Miscellaneous works & amenities development

17. Provision of Backup supply

4.0 ENVIRONMENTAL MANAGEMENT PLAN DURING CONSTRUCTION PHASE

Environmental pollution is inevitable during the construction phase. The project proponent

should take appropriate steps to control pollution during construction phase. The following

are the factors requiring control during construction phase.

4.1 SITE PREPARATION

In the proposed project, all necessary control measures will be taken during site

preparation.

To keep the damage to top soil minimum, excavators will be utilized for construction

Top soil excavated during construction activities will be stacked at safe place for

reuse at a later stage of construction.

4.2 AIR ENVIRONMENT

Dust is the major emission during the construction period. The following control

measures will be followed during the construction period

Application of dust suppressants will be done

Locally available gravel will be applied to the roads and lots, to prevent the dust

emanation

Measures will be taken to cover the stored materials to prevent the dust emission

during high winds


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Speed of the vehicles in the project area will be limited 20 Kmph

Rescheduling the works during high speedy winds

Inspection will be done for use of covering sheet to prevent dust dispersion at

buildings site

4.3 WATER ENVIRONMENT

Water required during the construction of commercial office complex will be met from the

ground water resources. Total water requirement during construction period will be 29 KLD

and construction period lasts for period of 24 months.

The following control measures will be taken to reduce the reduce the water requirement

during construction

Curing water will be sprayed on concrete structures; free flow of water will not be

done for curing.

After liberal curing on the first day, all concrete structures will be painted with

curing chemical to save water. This will stop daily water curing hence save water.

Concrete structures will be covered with thick cloth/gunny bags and then water

will be sprayed on them. This will avoid water rebound and will ensure sustained

and complete curing.

Ponds will be made using cement and sand mortar to avoid water flowing away

from the flat surface while curing.

Waste water management during construction

Waste water generation will be minimized by following above control measures

Sanitary waste water generated during construction stage will be sent to septic tank

followed by soak pit

4.4 NOISE ENVIRONMENT

The main sources of noise in the process of construction activities will be cement concrete

mixing, welding, aluminum channel folding, drilling and DG sets etc.

Diesel generator sets will be provided with integral acoustic enclosure at the

manufacturing stage itself

Equipment like earmuffs, earplugs etc. will be used for hearing protection for

workers.


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4.5 LAND ENVIRONMENT 4.5.1 Solid waste generation & Management

Proper planning and management during construction period is very much vital. We

proposed to implement the following control measures to mitigate the waste generation

Delivery of material on site will be done over a durable, impervious and level

surface, so that first batch of material does not mix with the site surface. Availability

of covered storage will be assured.

The recyclable items like metal, plastic will be sent to recyclable industry, and rest of

this scrap will be stored in a covered area.

Wherever materials (aggregates, sand, etc.) are more likely to generate fine

airborne particles during operations, nominal wetting by water will be practiced.

Workers / labour will be given proper air masks and helmets.

Skilled labour and good workmanship will be employed for judicial utilization of

materials and minimizing the waste.

Proper estimate of material will be done to minimize the undue wastage.

Contaminated runoff from storage will be captured in ditches or ponds with an oil

trap at the outlet.

Materials wasted on site will be reused at the same place.

4.5.2 Waste management & recycling

The construction waste includes debris, concrete (often recycled and reused at the site),

steel and other metals, pallets, packaging and paper products, fluorescent tubes, wood

beams, joists, studs, baseboards, cabinets and cupboards, railings, brick, doors and

casings, interior windows, bathroom fixtures, light fixtures, ceiling grid and tile, furnishings

etc.

Waste recycling Plan

Waste and recycling plans will be developed prior to beginning construction activity. The

plan aims at identifying wastes to be generated, and designate handling, recycling and

disposal method to be followed.


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Handling Handling of waste material requires special precautions such as personal protective

equipment and special procedures to prevent the injury. Safe operating methods will be

developed for waste collection, storage, and disposal operations in a manner to protect the

health and safety of personnel, minimize environmental impact and promote material

recovery and recycling.

Waste Segregation

Gross segregation of construction wastes into roadwork materials, structural building

material, salvaged building parts and site clearance wastes will be done and additional

segregation will be done to facilitate reuse/ recycling.

Storage

Adequate provision will be made for storage of solid waste and for easy access to the

dustbins

• for labours from source to the place of storage, and

• from the place of storage to a collection point specified by the waste

collection authority and/or contractor

Two colours of wheeled bins:

o green for wet waste

o blue for dry waste.

A minimum of 4% of the total site area will be allocated for storage and pretreatment of

the waste. This storage area will be covered to prevent any impact on surrounding.

5.0 ENVIRONMENTAL MANAGEMENT PLAN DURING OPERATION PHASE 5.1 Air Emission Management

During operation of the commercial office complex, the emissions will be mainly from DG

Sets which will be used for backup power supply and vehicles. Emissions will be mainly

Particulate matter, Hydrocarbons, Nitrogen dioxide and Carbon monoxide.

The following control measures will be taken up during the operation

All the internal roads will be grass paved. This will reduce the dust generation due to

the vehicular movement


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Stack of adequate height will be provided to the DG Sets as per CPCB guidelines

Green belt will be developed in the premises of complex which will act as sink for air

emissions

Hence there will not be any impact on surrounding environment due to the air emissions

from the commercial office complex.

BASELINE DATA

Baseline data has been monitored at the site for particulate Matter (PM2.5), particulate

Matter (PM10), Sulphur dioxide (SO2) & Nitrogen oxides (NOx) concentrations. The following

table shows the baseline concentrations.

PARAMETER 98th Percentile CONCENTRATION

(g/m3)

PM(2.5) 34.5

PM(10) 56.2

SO2 18.6

NOx 33.8

CO 550

EMISSIONS: The emission data from the stacks is shown in below Table.

Type of Stack Stack height in m.

Stack dia. in m

Emission Rate (QS) in gm/s

PM CO HC NOx

32 x 2000 30 0.5 0.2

per DG set

1.9 per DG

set

0.7 per DG

set

5.1 per DG

set

Industrial Source Complex (ISC-3) Model has been applied for prediction of incremental rise

in Ground Level Concentrations of PM, CO, HC & NOx due to the proposed Project. The

maximum Ground Level Concentrations will occur at a distance of 200 m from the stack in

the down wind direction. The emissions due to vehicular traffic are also considered in the

Modeling. The following table shows the Net resultant concentrations of PM, CO, HC & NOx.


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NET RESULTANT MAXIMUM CONCENTRATIONS DUE TO THE PROJECT

Item PM

µg/m3 NOx µg/m3

CO µg/m3

Maximum baseline Concentration in the study area 56.2 33.8 550

Maximum predicted incremental rise in concentration due to

the proposed commercial office complex 1.8 5.8 4.2

Net Resultant concentrations during operation 58.0 39.6 554.2

National Ambient Air Quality Standards vide order No. S.O. 826 dated 16-11-2009

100 80 2000

The net resultant concentration of PM10, NOx & CO are within the National Ambient Air

Quality Standards. Hence there will not be any adverse impact on air environment due to

the proposed project.

Recommendations

a. Stack emissions for PM, HC NOX and CO shall be monitored regularly to meet the

statutory requirements.

b. All the internal roads shall be grass paved to reduce the fugitive dust due to vehicle

movement.

c. Greenbelt shall be provided around the boundary and along the internal roads.

5.2 WATER POLLUTION MANAGEMENT

Water usage for applications such as flushing and washing will be as high as 93% of water

demand in any building. In view of the above, we proposed to adopt the following measures

to reduce this demand

Water meter conforming to ISO standards will be installed at the inlet point of water

uptake and at the discharge point to monitor the daily water consumption. This would

also enable the user to identify if there are any points of leakages.

Dual flush systems will be installed in order to allow different volume of water for

flushing liquids and solids.

Sensors based fixtures will be fitted which function only in presence of users. These

sensor-operated taps help in reducing water consumption and also result in

maintaining better hygiene

Tap aerators will be installed which facilitate cleaning through increasing the pressure


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at which the water is delivered even at low flow rates.

Pressure reduction device will be installed which will affect the discharge rate and also

to maintain uniform flow at different levels.

Waste water generation

Only source of waste water generation will be sanitary waste water which will be treated in

STP with Moving bed Bio-Reactor technology. The treated waste water will be utilized for

non-potable purposes like Toilet flushing & gardening.

During construction of commercial office complex, Dual Plumbing system will be done. Two

separate water tanks will be provided for storingTreated wastewater & another for fresh

water. Separate pipeline system will be provided to treated wastewater tank to pump the

water for toilet flushing & gardening purposes. There by net water withdrawal will be

reduced.

For the proposed project, it is proposed to set up 4 no.s of Sewage Treatment Plant

capacity 600 cum/day.

Design details of proposed STP

Process Description

BAR SCREEN: the influent passes through an in-line screen for removal of coarse

suspended solids. These screens would be manual.

OIL AND GREASE TRAP: Complete oil and grease trap with siphon arrangement to arrest

all oil contents in the trap will be provided. This trap will have specific RCC partition with

underflow arrangement to trap oil contents in each chamber. In last chamber there will be

a siphon arrangement as outlet for sewage. The tarp oil contents can be cleaned manually.

There can be a provision of oil skimmer application on higher volume of oil contents.

COLLECTION CUM EQUALIZATION: The oil free water is then collected in a collection

cum equalization tank to meet the peak hour’s requirement and to get a homogenous

mixture. Equalization tank helps in sedimentation of grit in the absence of grit chamber. An


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aeration grid can be provided to keep the suspended matter in suspension and to avoid

septic conditions.

AERATION REACTORS: The influent from the equalization tank(s) is pumped to our

packaged system. The treatment occurs in various aerobic chambers provided in the

system. The system will have the flexibility of varying the sequence of aerobic chambers

depending upon flow rates.

CLARIFIER: The wastewater from bioreactors will be pumped to a secondary clarifier so

as to settle out the solids. A chemical dosing system will be provided before clarifier to aid

in solid settling. The supernatant from the clarifier will be fed to surge tank whereas the

sludge will be sent to sludge drying bed. A part of sludge is re-circulated as MLSS to

aeration tank.

CHLORINATION CUM DISINFECTION: Clarified water is fed to the chlorine contact

tank or surge tank. A chlorination system will dose chlorine on a continuous basis. This tank

will also act as housing tank for filter feed pumps.

MULTI MEDIA FILTER (MMF): The disinfected water will then be passed through

Multimedia filter(s) to reduce suspended load and turbidity, BOD, colours, odour and fine

particles. It finally polishes the treated water and also reduces the residual chlorine. The

wastewater so treated can be utilized for gardening or for flushing and recycling.

The backwash from the MMF unit will be fed back into the collection tank.

SLUDGE DISPOSAL: A proportion of sludge from the clarifier and bioreactor is pumped

via the hydro cyclone into the sludge holding tanks/ Sludge drying beds (SDB). Supernatant

from the sludge holding tanks is decanted and returned to collection tank for re-processing.

A part of sludge is periodically re-circulated as MLSS to bioreactors.

ELECTRICAL CONTROLS: STP will have a complete centralized control panel mounted

on the skid. It will have both automatic and manual operation mode. The control system

shall include circuit breakers, motor, starters and timers all housed in a weatherproof

cubicle type panel board.


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DESIGN INLET AND OUTLET CHARACTERTICS

Parameters Inlet Outlet

Temperature Ambient Ambient

pH 6.0- 8.5 6.5-8.0

TSS 150-200 mg/l <10 mg/l

BOD 250-300 mg/l <10 mg/l

COD 450 -550 mg/l <60 mg/l

O & G 5-10 mg/l <5 mg/l

WASTE WATER TREATMENT SCHEME Capacity of STP : 4 x 600 KLD

DISINFECTION

SLUDGE

RAW SEWAGE SCREENING

OIL & GREASE TRAP

SEWAGE COLLECTION CUM EQUALIZATION TANK

SURGE TANK

ACTIVATED CARBON FILTER

FINAL COLLECTION (WILL BE USED FOR GARDENING,

FLUSHING ETC.)

SLUDGE

DRYING BED/

SLURRY

COLLECTION

TANK

MBB REACTOR

TUBE SETTLER

PRESSURE SAND FILTER


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5.3 SOLID WASTE In the commercial office complex, waste segregation will be done at the source by placing

two types of the bins at all the strategic locations.

Green: wet waste

Blue : dry waste

The plastic waste will be disposed off to the waste recyclers and bio-degradable waste will

be disposed to the GHMC bins. Exploration will be done to supply bio-degradable waste to

the agencies undertaking bio-composting activities.

The following will be the solid waste generation during operation of the commercial office

complex

S. No WASTE QUANTITY DISPOSAL

1. Municipal Solid

Waste

14.4 T/day The garbage will be segregated at source

through collection bins into wet waste and

dry waste. Plastic waste will be given to the

waste recyclers and dry will be disposed to

the GHMC bins. Kitchen and food waste will

be biocomposted in the complex premises

2. Sludge from STP 214.1 Kg/day Stored in HDPE bags and will be used as

manure / given to farmers.

3. Waste oil 3000 Lit

/Annum

Will be given to TSPCB approved vendors.

Organic waste convertor As per the Municipal Solid waste management rules, 2006, we will install 1.0 T Organic

waste convertor to compost the Kitchen and food waste.

5.4 NOISE LEVEL MANAGEMENT

DG sets will be provided with acoustic enclosure, which would restrict the noise level to 75

dB(A) at a distance of l m from the acoustic enclosure. The DG sets would be mounted on

the anti vibration pads to restrict the vibration. There will be slight increase in traffic noise

due to the proposed project. However the Noise levels will be within the standards


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prescribed by CPCB / TSPCB. Hence there will not be any impact on Noise environment due

to the proposed project.

5.5 LAND ENVIRONMENT

All the pavements in the site area will be grass paved, which will mitigate the dust

generation from the vehicles. Vehicle speed in the complex area will be reduced which will

reduce the emissions. Greenbelt will be developed in the complex area which will acts as

sink for the emissions.

Hence there will not be any deposition of pollutants in the surrounding area.

The sanitary waste water generated from the complex will be treated in STP with Moving

Bed Bio-reactor system. Treated waste water will be reused for non-potable purposes like

flushing and greenbelt development. Remaining treated waste water will be discharged into

the municipal drain

The solid waste generated from the complex will be disposed as per norms.

Hence there will not be any impact on land environment due to the proposed complex

Recommendations

a) Land scaping can be done periphery of the compound wall.

5.6 GREEN BELT DEVELOPMENT

Greenbelt will be developed all around the periphery of the compound wall along with some

part of the Greenbelt will be developed in Open spaces. The greenbelt will be developed

simultaneously with the plant construction. This will further mitigate the pollution impacts.

Greenbelt plantation

Greenbelt is developed in a set of rows of trees planted in such a way that they form an

effective barrier between the plant and the surroundings. The main purpose of greenbelt

development is to contribute to the following factors.

To maintain the ecological homeostatus.

To attenuate the dust emissions and lower SO2 levels

To prevent the soil erosion.

To attenuate the noise levels.

To utilize the treated effluents.


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Selection of species

The following main criteria will be followed for selection of plants:

• Trees, shrubs having dense foliage with a large surface area, as leaves absorb

pollutants.

• Evergreen trees as they are found to be more effective.

• The species resistant to pollutants, particularly in the early stages of their growth.

The following species are planned to be selected for greenbelt development in the complex

premises

Acacia arabica (Babul)

Citrus species

Dyospyros species

Ficus bengalensis (Banyan)

Ficus religiosa (Peepal)

Lillium spp. (Lily)

Polyathia lotigifolia (Ashok)

Tamarindus indica (Imli)

Thuja occidentallis (Cedar)

Prospis Juliflora (Mesquite)

Zizypus jujuba (jujuba), etc.

Greenbelt development plan

Green belt will be developed all around the Office complex area

Out of the total site area i.e. 6075.0 Sq.m of area will be allocated for greenbelt

development.

The tree species to be selected for the plantation are pollutant tolerant, fast

growing, wind firm, deep rooted.


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5.7. RAINWATER HARVESTING Rain Water from the various roofs will be drained through rain water vertical down take

uPVC pipes. These vertical down take pipes will be located at suitable locations inside the

shafts or embedded inside the wall. All the terraces will be sloped in a slope of 1:100

sloping towards down vertical pipes. Rain Water khurras will be of suitable size with MS/CI

grating provided at roof with each rain water vertical down take.

Rain Water vertical down take of uPVC pipe will be left 75mm above the finished ground

level with elbow spouts. Under these spouts there will be a storm water catch basin so the

rainwater from the roofs will be discharged directly into the catch basin to avoid the

flooding into the surrounding areas. These catch basins will also be used for drainage of

the open surface surrounding the catch basin. There will be a catch basin along the

roadside to take care of the roadside storm water drainage. These catch basins will be

connected to the main storm water drainage system, which may be divided into two or

three parts to reduce the depth of the manhole as to suite the site conditions. The

discharge from these main drains will be discharged in to rain water-harvesting pits. These

pits will be located at different location to suite site conditions. The overflow from these

pits will be collected into an overflow sump. There will be a provision of submersible pump

in sump pit the overflow water from these pit pump out side or can be discharged directly

into existing storm water drain by gravity.

In the Site, it is proposed to have rain water storage tank. Excess rain water will be

diverted to recharging pits.

Harvested Rainwater

Rain water harvesting structures will be constructed to harvest the run-off water from roof

tops by laying a separate storm water drainage system for recharging of ground water.

Ground rainwater harvesting system:

Artificial recharge or ground water rainwater harvesting is a process by which the rain

water from paved areas will be collected through a storm water network. And will be

connected to Rainwater harvesting pit.


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Rooftop rainwater harvesting system: In rooftop harvesting, the roof becomes the catchments, and the rainwater will be collected

from the roof of the each building. Rainwater from roof or terrace will transported using

PVC gutters. Rainwater harvesting pits collect all the rainwater. So that groundwater table

will be recharged and utilized for future use.

5.8 RISK ASSESSMENT AND MANAGEMENT PLAN FIRE PROTECTION SYSTEM

As per the provisions of the Fire Service Act, 1999, buildings of height more than 18 m are

required to obtain prior clearance from Telangana State Disasters Response & Fire Services

Department from fire safety point of view. For the proposed commercial office complex,

we will obtain NOC from Telangana Pradesh State Disasters Response & Fire Services

Department.

DESIGN CRITERIA AND DESCRIPTION:

Fire protection system will be designed and installed as per National Building Code

procedures.

HYDRANT SYSTEM (INTERNAL & EXTERNAL):

Water supply for hydrant system (Internal & External) is required to be capable of

providing the water pressure and flow characteristics required by systems being served.

External yard hydrants near to the face of the building with maximum spacing of 45 mts

between hydrant points.

Internal fire hydrant station consisting of landing valve and swinging type hose reel will

be provided at;

- All floors at every 1000 sq.m interval at each floor landing near the staircase.

PROPOSED DESIGN:

Fire Hydrant system (Internal & External): System will be hydraulically designed to provide

water flow at a minimum pressure of 3.5 Kg. / cm2 at the outlet of remotest hydrant valve.


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Each hydrant station will comprise of single headed landing valve, swinging type hose reel

and other equipments.

Internal hydrants will be provided for every 1000sqm floor area at each floor landing near

the staircase.

The minimum flow rate will be 2280 lpm.

Internal hose connection and hose station will be unobstructed and will be located near the

Staircase, opening to the common area. The shaft size will be of 1.2mts x 1.2mts. The

hydrant riser will be terminated with air release valve at the highest point to release the

trapped air in the pipe network.

The External hydrants will be provided near the face of the building with the maximum

spacing of 45mts between two external hydrants.

The ring main in the ground level will be connected with internal hydrant system through

isolation valve and flow switches, also the external hydrant will be tapped from the same.

Four way Fire Brigade inlet connection at ground level at suitable location to fill the rising

mains of hydrant system, in case of failure of pumps.

Water storage capacity: 150,000 litres underground storage and 20,000 litres overhead

storage tanks will be provided as per NBC.

AUTOMATIC SPRINKLER SYSTEM:

The purpose of automatic sprinkler system is to control the growth and spread of fire to

provide increased protection to occupants and the building structure.

Code Requirements:

Sprinkler isolation valve to have tamper proof alarm fitted.

After each flow switch, test drain to be provided.

Ceiling voids over 800mm to have sprinklers in upper layer.

In Guest rooms sidewall sprinklers to be extended coverage, quick response type.

Proposed Design:

The sprinkler system will be hydraulically designed in accordance with the above

requirement.


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Minimum pressure: Note less than 20 psi (1.38 bars) for remotest sprinkler.

The sprinklers in the buildings will be fed from separate sprinkler riser located in the

internal FHCs. Each floor will be considered as separate zone to be annunciated separately

at Fire control room. The sprinklers piping network at each floor will be provide with

suitable size of butterfly valve with inbuilt supervisory switch, flow switch and test drain

assembly.

The sprinklers will be provided in all areas except in electrical room, transformer room and

switch room.

Isolation control valve (ICV) will be provided for sprinkler system at suitable location, for

alarming in case of fire.

Ball valves of suitable size will be provided for drain of sprinkler system at the farthest

point, and will be taken to nearest drain outlet by means of piping.

FIRE PUMPS:

Common electrical driven fire pumps for hydrant & sprinkler system and common jockey

pumps will be used for hydrant and sprinkler system. However the diesel engine driven for

both the system will be common with necessary reducing valve (if required) to compensate

the difference between operating pressure of both the systems.

The electrical pump will be of 2280 lpm at required head as per NBC 2005. The minimum

pressure required at the farthest and remotest hydrant valve is 3.5 Kg/ cm2 and pump head

is calculated accordingly.

Common jockey pump for both the systems will be of 180 lpm at required head.

Common stand by diesel engine driven pumps for both the systems will be of 2280 lpm at

required head.

The jockey pump shut down will be automatic, whereas the main pumps and the diesel

engine for both the system will have manual shut down.

Fire pump test connection with flow measuring station will be provided with piping to re-

circulate the pump's discharge to water supply tank or to the pump suction.

Following is the configuration of fire pumps proposed;

a) One common Electrical driven pump for Hydrant and sprinkler systems.

b) One common stand by diesel driven pump for hydrant & sprinkler system


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c) Common jockey pump

SYSTEM OPERATION:

When the sprinkler head, hydrant valve or hose reel opens, the pressure drop in respective

piping network which will be sensed by pressure switches installed on delivery header of

pumping system. This in turn switches on the jockey pump automatically to meet the

water requirement. In case of further drop, the main pump will start automatically to meet

the water requirement. The jockey pump will start and shut down automatically as per

pressure gauge settings, whereas the main pump common for both the systems and the

diesel engine driven pump will start automatically but shut down has to be done manually.

PORTABLE FIRE EXTINGUISHERS:

Proposed Design

Hand held fire extinguishers will be located as per NBC-2005 and will be located adjacent to

fire hose reel cabinet. The fire extinguishers will be designed based on the requirement of

Local authority.

Portable fire extinguishers will be provided at the locations mentioned below;

i. Dry chemical powder type extinguisher ABC type, conforming to IS: 2171 provided

near:

a. Car parking areas

b. In all stores, Main switch board room, transformer room, generator room and

pump room.

ii. Water type fire extinguisher conforming to IS: 940 located near:

a. Near staircase landing on every floor.

b. In kitchens, stores etc.

iii. Mechanical foam type extinguisher at HSD storage, D.G. Rooms, Fire water pump

house and near transformers.


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6.0 BUDGET ALLOCATION FOR ENVIRONMENTAL PROTECTION 6.1 AIR EMISSION MANAGEMENT

The following table furnishes the cost for Environmental protection for each section

S. NO PURPOSE CAPITAL COST

(in Rs. Lakhs)

RECURRING COST

(in Rs. Lakhs/annum)

1. Air emission

management

Chimney for DG sets 22.0 0.2

Greenbelt development 7.5 3.0

2. Water & waste water

management

Water meters 0.45 0.05

Dual plumbing system 20 0.2

STP 720.00 238.7

3. Rain water harvesting

system

Rain water harvesting

pits 3.0 0.3

4. Solid waste

management

Three bins at every 750

Sq.m 2.4 3.0

Organic convertor 15.0 2.0

5. Environmental

monitoring -- 1.2

6. Other energy

conservation measures

like Solar panels, LED

etc

125.0 0

Total 915.35 248.65

The in- charge who is experienced in environmental aspects will look after monitoring

schedules and will coordinate with the Govt. authorities.


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7.0 TRAFFIC CIRCULATION SYSTEM AND CONNECTIVITY

• The site is well connected by ISB road connecting Old Mumbai Highway and Outer

ring road

• The existing road can absorb the additional traffic due to the proposed project

Hence there will not be any adverse impact on vehicular traffic due to the proposed project

of commercial office complex.

In the commercial office complex project, we will provide parking space of 65.7% of total

built up area. The parking space provided will accommodate 6000 four wheelers and 6000

two wheelers.

Hence there will not be any impact on traffic circulation system

8.0 POST PROJECT MONITORING STRATEGY

The monitoring of various environmental parameters is necessary which forms part of the

environmental protection measures. Monitoring is an important feature because the

efficiency of control measures can only be determined by monitoring. A comprehensive

monitoring program is given under. Locations and frequency of monitoring as per the

guidelines of TSPCB and MOEF are tabulated below.

MONITORING SCHEDULE FOR ENVIRONMENTAL PARAMETERS

S. No. Particulars Frequency of Monitoring

Duration of sampling

Parameters required to be monitored

1. Water quality

A. Ground Water quality in the site

Once in a month except for heavy metals.

Grab sampling (24 hourly)

As per IS: 10500

B. Wastewater Once in a month Grab sampling As per IS: 2490

2. Air Quality

A. Stack Monitoring

Once in a month PM, HC, CO & NOX


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9.0 SOLAR ENERGY UTILIZATION

In this proposed commercial office complex

Total external power requirement will be met through solar energy

Solar mounted street lights will be installed in the site premises

600 KVA capacity solar panels will be installed on the terrace to meet common

lighting requirement.


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CONCLUSIONS

1. Dust curtains will be used to reduce the dust emissions during construction of proposed

project.

2. The flue gases from the D.G. Set will be let out through a stack of adequate height for

effective dispersion of emissions into the atmosphere. The resultant Ground Level

Concentrations of PM10, HC, CO & NOX in the post project scenario are within the

National Ambient Air Quality Standards (NAAQS). Hence there will not be any adverse

impact on air environment due to the proposed project.

3. All Driveways & internal roads will be grass paved.

4. Wastewater generated from the apartment will be treated in sewage treatment plant

and will be utilized for non-potable purposes like Toilet flushing & gardening.

5. Rain Water Harvesting pits will be provided to augment the precious rain water and

ground water recharge

6. The Solid waste in the form of garbage will be segregated at source into bio-degradable

and non-bio-degradable waste. Plastic waste will be given to the authorized recyclers

and bio-degradable waste will be sent to GHMC.

7. Greenbelt of 6,075 Sq.m will be developed all around the project site and in the open

area

8. Adequate firefighting equipment’s will be implemented as per the, etc. as per National

Building Code.

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