ENVIRONMENTAL MANAGEMENT PLAN - …environmentclearance.nic.in/writereaddata/FormB/EC/EIA_EMP/...Environmental Management Plan “BAY HILLS” ANANDA HOMES PVT. LTD. Residential Complex

ENVIRONMENTAL MANAGEMENT PLAN

“BAY HILLS”

ANANDA HOMES PVT. LTD.

(Residential Complex)

Sy. No. 93 (Part),95 (Part) & 96,

Neknampur Village,

Gandipet (Earlier RajendraNagar) Mandal,

Ranga Reddy District,

Telangana

Prepared by

Flat no: 7-3, Dhruvatara Apartments, Amrutha Estates, Somajiguda,

Hyderabad - 500 082; Ph: 040- 23314270 /271/ 66100103

Environmental Management Plan “BAY HILLS” ANANDA HOMES PVT. LTD. Residential Complex

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1.0 INTRODUCTION

M/s Ananda Homes Pvt. Ltd., has proposed to construct a Residential complex

under the banner “BAY HILLS” at Sy. No. 93 (Part),95 (Part) & 96, Neknampur

Village, Gandipet (Earlier RajendraNagar) Mandal, Ranga Reddy District, Telangana

As per the EIA notification, 2006 amended on 1st December, 2009, Building and

Construction projects (under Item 8a) with built up area ≥20000 Sq.m and <

1,50,000 sq.mtrs are categorized under B category.

1.1 DETAILS ABOUT THE PROJECT SITE

Latitude : 17°23'15.51"N 78°21'55.63"E

Location : Sy. 93 (Part),95 (Part) & 96

Type of the area : As per the Master plan of Hyderabad

Metropolitan Development Authority the area

proposed for Complex falls under Residential

zone (approved by Govt. vide G.O MS. NO.

288 M.A dated 03-04-2008.

Surroundings of the project site

:

North open land followed by road

East road

South private buildings

West open land followed by road

Topography : Topography of the site is more or less flay

without many undulations

Nearest Railway station :

Topographical map showing the site and other features is shown in Fig 1.1


2 | P a g e

PROPOSED

PROJECT SITE

TOPOGRAPHICAL MAP SHOWING THE LOCATION OF THE PROJECT SITE ( Fig 1.1)


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2.0 DETAILS OF THE PROJECT

The following are the brief details of the proposed Residential complex project site

S.No Details Description

i. Total Land Area Total: 21,196.57 Sq.m

ii. Survey nos. Sy.No. 93 (Part),95 (Part) & 96

iii. Expected project cost Rs. 129.6 Crores

iv. Total built-up area

80,150.13 Sq.m

Area statement for the proposed Residential

Complex project is furnished in Table 1.1

v. Water Requirement Total water demand is about 4 KLD during

Construction of Residential complex &

240 KLD during the operation of Residential

complex

Source of supply : Municipal supply

vi. Power requirement 1600 KvA (Maximum peak demand)

vii. Solid waste generation During operational phase:

Municipal solid waste : 0.81 MT/day

viii. Connectivity The proposed Residential complex site is well

connected by Osman sagar road followed by road

leading to Alkapuri.

ix. Additional facilities DG Sets

Sewage Treatment Plant

and other amenities

x. Back up supply DG sets of capacities 4 x 200 kVA will be provided

for backup supply

xi. Parking facilities 28,349.93 Sq.m (54.7 % of total floor area)


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TABLE 1.1 BUILT-UP AREA STATEMENT

Block Name Total Built-up area (Sq.m)

Residential Complex

Block – A (G + 5 floors) 14,359.35

Block – B (G + 5 floors) 8,017.29

Block – C (G + 5 floors) 10,846.25

Block – D (G + 5 floors) 6,980.24

Block – E (G + 5 floors) 5,020.91

Block – F (G + 5 floors) 5,021.84

Amenities (G + 3 floors) 1,554.32

Sub- total – I 51,800.20

Parking area

Cellar – I 18,424.15

Cellar – II 9,925.78

Sub- total – II 28,349.93

TOTAL (I + II) 80,150.13

2.1 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 Residential complex will be sourced from in and

around Hyderabad

2.2 WATER REQUIREMENT

The total water required for the proposed Residential complex will be met from Municipal

water supply and ground water resources. The total water requirement for proposed

Residential complex project will be 240 KLD. 4 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

Residents 1530

(No. of units :

306

No. of persons

per unit : 5)

105 45 150

160.7 68.9 229.5

Visitors 153 10.5 4.5 15 1.6 0.7 2.3

Employees 30 13.5 31.5 45 0.4 0.9 1.4

Total 162.7 70.5 233.1


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Water Requirement for Landscaping:

Landscaping Area: 2,225.6 Sq.m

Water required per Sq.m of landscaping area: 2.3 Ltrs/day

Total Water required for landscaping: 5.1 KLD (say 6 KLD)

Break-up of Water Requirement (in KLD)

Requirement Quantity, KLD Source

Domestic 163 Municipal water supply

Flushing 71 Treated wastewater

Landscaping 6 Treated wastewater

Total Water Demand 240

WATER BALANCE

Input in KLD Output in KLD

Fresh

water

163 Wastewater disposed to Sewerage

lines

125

Recycled

water

77 Treated wastewater will be reused for

flushing purposes.

71

Treated wastewater will be reused for

greenbelt development.

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Evaporation / Losses 38

TOTAL 240 TOTAL 240

2.3 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 Residential complex will be 202 KLD.

The waste water generated will be treated in separate specifically designed STP and

treated waste water will be utilized for flushing operations and greenbelt development and

remaining will be discharged into the municipal drain.


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2.4 WATER BALANCE Water balance for Residential complex is furnished in the section 2.2. 2.5 CONSTRUCTION OF RESIDENTIAL 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. Construction of Compound wall

2. Greenbelt Development

3. Leveling of construction area

4. Excavation for Foundations

5. Foundation PCC, Concrete, Plinth Beam

6. Slab laying

7. Electrical works

8. Brick work

9. Plumbing & Drainage work

10. Stair case for all floors

11. Fixing of Doors & windows

12. Water Proofing works

13. Electrical wiring & Fixtures

14. Fixing of sanitary fittings

15. Plastering works

16. Painting work

17. STP Construction

18. Over head & Underground tank construction

19. Miscellaneous works & amenities development

20. Provision of Backup supply


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3.0 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.

3.1 SITE PREPARATION

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

preparation.

The soil type in the area of project site area is sand silty soil. Sparse vegetation is

observed in small portion of the Project area. Hence there will not be much removal

of top soil during construction activities.

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.

3.2 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

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

3.3 WATER ENVIRONMENT Water required during the construction the residential complex will be met from the ground

water resources. Total water requirement during construction period will be 4 KLD and

construction period lasts for period of 18 months.


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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

3.4 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.

3.5 LAND ENVIRONMENT 3.5.1 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.


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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.

3.5.2 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.

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.


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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

Three colours of wheeled bins:

o Dark grey for inert waste,

o Green for wood and ply waste and

o Blue for hazardous waste will be used.

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.

4.0 ENVIRONMENTAL MANAGEMENT PLAN DURING OPERATION PHASE 4.1 Air Emission Management

During operation of the proposed Residential 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, NMHC, 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

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 proposed complex.


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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) 34.6

PM(10) 47.6

SO2 16.8

NOx 28.8

CO 412

EMISSIONS:

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

Type of Stack

Stack height in m.

Emission Rate (QS) in gm/s

PM NMHC NOX CO

DG Sets

(4 x 200 KVA)

3

(above

building)

0.01

per

DG set

0.1

per

DG set

0.5

per

DG set

0.2

per

DG set

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

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

maximum Ground Level Concentrations will occur at a distance of 20 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, NOx & CO.


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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

46.8 31.4 453

Maximum predicted incremental rise in concentration due to the project

0.1 2.6 1.6

Net Resultant concentration during the operation of the project

46.9 34 454.6

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

100 80 2000

The net resultant concentration of PM, NOx & CO is 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, NMHC, 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.

4.2 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


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

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. No waste water will be discharged

outside hence zero effluent discharge will be implemented.

During construction of 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.

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

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

septic conditions.


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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 – 220 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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4.3 SOLID WASTE In the proposed Residential complex, waste segregation will be done at the source by

placing two types of the bins at all the strategic locations.

Green: Bio-degradable waste (tissue paper, food waste etc)

Blue : Non-biodegradable waste (plastic, metal waste etc)

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 Residential complex

S. No WASTE QUANTITY DISPOSAL

1. Municipal Solid waste

Residential 0.8 MT/day

The garbage will be segregated at

source through collection bins into Bio-

degradable waste and Non Bio-

degradable waste. Plastic waste will be

given to the waste recyclers and bio-

degradable waste will be disposed to the

GHMC bins

2. Sludge from STP 20.2 Kg/day Stored in HDPE bags and will be used as

manure / given to farmers.

4. Waste oil 100 Lit

/Annum

Will be given to TSPCB approved

vendors.

4.4 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

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

to the proposed project.


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4.5 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 Fluidized

Aerobic 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.

4.6 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

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 complex area

Out of the total site area i.e. 2,225.6 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.

4.7. 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


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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 disposal will be designed as per NBC i.e. 150 mm dia covers the area 83.6 sq.m.

@ of 150mm/hour rain fall as per NBC.

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.

4.8 RISK ASSESSMENT AND MANAGEMENT PLAN FIRE PROTECTION SYSTEM

As per the provisions of the Telanagana state 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

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

Department.

DESIGN CRITERIA AND DESCRIPTION: Fire protection system will be designed and installed as per National Building Code

procedures.


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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.

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.


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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:

As per NBC- building has been classified, as Residential Buildings, Group-A.

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.

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.


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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 180lpm 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

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;


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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.

4.9 COST FOR ENVIRONMENTAL PROTECTION

The following will be the cost for Environmental protection

S. NO PURPOSE CAPITAL COST

(in Rs. Lakhs)

RECURRING COST

(in Rs.

Lakhs/annum)

1. Air emission management

Paving of internal roads 132.90 2

Chimney for DG sets 12.00 0.1

Greenbelt development 1.50 0.6

2. Water & waste water

management

Water meters 0.45 0.05

Dual plumbing system 10.00 0.1

STP 66.00 3

3. Rain water harvesting

system

Rain water harvesting pits 2.00 0.3

Rain water storage tank 10.00 --


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S. NO PURPOSE CAPITAL COST

(in Rs. Lakhs)

RECURRING COST

(in Rs.

Lakhs/annum)

4. Solid waste management

Two bins at every 750

Sq.m of amenities and at

each flat 4.59 1

7 no. chutes 0.90 0.05

5. Environmental monitoring -- 0.3

6. Other energy conservation

measures like Solar panels,

LED etc 20.00 0

Total 260.34 7.5

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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5.0 TRAFFIC CIRCULATION SYSTEM AND CONNECTIVITY

The proposed project site is well connected by Osman sagar road followed by road leading

to Alkapuri

The existing road is capable of absorbing this additional truck movement. Hence there will

not be any adverse impact on vehicular traffic due to the proposed residential complex.

In the proposed project we have provided parking space of 54.7% of total built up area for

the residential complex. The parking space provided will accommodate 500 four wheelers

and 600 two wheelers.

Hence there will not be any impact on traffic circulation system

6.0 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,SO2 & NOX


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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 PM, 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 2,225.6 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.

Documents

ENVIRONMENTAL MANAGEMENT PLAN - …environmentclearance.nic.in/writereaddata/FormB/EC/EIA_EMP/...Environmental Management Plan “BAY HILLS” ANANDA HOMES PVT. LTD. Residential Complex