M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
CONCEPTUAL PLAN
39
ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Table of Contents 1. INTRODUCTION ...... 44 1.1 BACKGROUND OF THE PROJECT ...... 44 1.2 SITE DESCRIPTION ...... 44 1.3 PROJECT COMPONENTS ...... 47 1.4 VEHICLE PARKING FACILITIES ...... 50 1.5 POWER REQUIREMENT ...... 50 1.6 BASELINE ENVIRONMENTAL STATUS...... 51 1.7 ENVIRONMENTAL COMPONENTS ...... 53 1.8 WATER REQUIREMENT ...... 53 1.9 SOLID WASTE GENERATION ...... 55 2. ENVIRONMENTAL IMPACT ASSESSMENT ...... 59 2.1 INTRODUCTION ...... 59 2.2 IDENTIFICATION OF IMPACTS ...... 59 Air quality ...... 60 2.3 IMPACT EVALUATION ...... 62 2.4 IMPACT ON AIR ENVIRONMENT ...... 72 2.4.1 Construction Phase ...... 72 2.4.2 Operation Phase ...... 73 2.5 IMPACT ON AMBIENT NOISE ...... 73 2.5.1 Construction Phase ...... 73 2.5.2 Operation Phase ...... 74 2.6 IMPACT ON LAND ENVIRONMENT ...... 75 2.7 IMPACT ON WATER RESOURCES ...... 75 2.7.1 Construction Phase ...... 75 2.7.2 Operation Phase ...... 76 2.8 IMPACTS DUE TO WASTE DISPOSAL ...... 76 2.8.1 Stacking and Disposal of Construction Materials ...... 76 2.8.2 Operation Phase ...... 76 2.9 IMPACTS ON ECOLOGICAL RESOURCES ...... 76 2.9.1 Construction Phase ...... 76 2.9.2 Operation Phase ...... 77
40
ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
2.10 IMPACT ON TRAFFIC LEVELS ...... 77 2.10.1 Construction Phase ...... 77 2.10.2 Operation Phase ...... 77 2.11 IMPACTS ON SOCIO ECONOMIC ENVIRONMENT ...... 78 2.11.1 Public Health and Safety ...... 78 2.11.2 Positive Impact ...... 79 3. ENVIRONMENTAL MANAGEMENT PLAN ...... 80 3.1 GENERAL ...... 80 3.2 AIR POLLUTION CONTROL AND MANAGEMENT ...... 80 3.2.1 Construction Phase ...... 80 3.2.2 Operation Phase ...... 81 3.3.1 Construction Phase ...... 82 3.3.2 Operation Phase ...... 82 3.4 SOLID WASTE MANAGEMENT ...... 83 3.4.1 Construction Phase ...... 83 3.4.2 Operation Phase ...... 84 3.5 WATER AND WASTEWATER MANAGEMENT ...... 86 3.5.1 Construction Phase ...... 86 3.5.2 Operation Phase ...... 86 3.6 STORM WATER MANAGEMENT ...... 87 3.6.1 Construction Phase ...... 87 3.6.2 Operation Phase ...... 87 3.7 LANDSCAPE AND ECOLOGICAL MANAGEMENT ...... 92 3.7.1 Construction Phase ...... 92 3.7.2 Operation Phase ...... 95 3.8 SOCIO ECONOMIC DEVELOPMENT PLAN ...... 97 3.8.1 Construction Phase ...... 97 3.8.2 Operation Phase ...... 97 3.9 ENERGY CONSERVATION ...... 98 3.9.1 Energy Saving Practices ...... 98 3.10 SOIL ENVIRONMENT...... 100
41
ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
3.11 FIRE PROTECTION MEASURES ...... 100 3.11.1 Fire Protection System ...... 101 3.12 RISK ASSESSMENT, DISASTER MANAGEMENT AND SAFETY MEASURES 102 3.12.1 First Aid Facilities:...... 106 3.13 DISASTER MANAGEMENT PLAN ...... 107 3.14 Environment Monitoring Plan for Construction and Operation Phase ...... 112
List of Tables
Table 1: Environmental Setting of the Project Site ...... 46 Table 2: Land Use Break up Details ...... 47 Table 3: Built up Area statement ...... 47 Table 4 : Summary of Built-up Area Calculations ...... 49 Table 5: Parking Provided ...... 50 Table 6: Occupancy Load Calculation ...... 54 Table 7: Water Requirement calculation...... 54 Table 8 : Evaluation of Construction Phase Impact ...... 63 Table 9: Hazardous Waste Generation and Disposal ...... 84 Table 10: Run –off Calculations ...... 89 Table 11: Five Yearly Rainfall ...... 92 Table 12 Distribution of Vegetation in the Study Area ...... 93 Table 13: Fauna in the Study Area ...... 94 Table 14 : Proposed Trees Plantation Within project Site ...... 96 Table 15: Proposed Shrubs & Flowers Plantation Within project Site ...... 96 Table 16 :The U-values of the roof and opaque wall of the building ...... 98 Table 17: Vertical Fenestration ...... 99 Table 18 Risk Assessment during Construction Phase ...... 103 Table 19 : Environmental Monitoring Plan ...... 113 Table 20: Budgetary allocation for environmental management during Construction phase ...... 114 Table 21: Budgetary allocation for environmental management during Operation phase ...... 114
List of Figures
42
ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Figure 1: Map Showing Location of the Project Site ...... 45 Figure 2: Area breakup detail ...... Error! Bookmark not defined. Figure 3: Water balance chart ...... 55 Figure 4: Solid Waste Management during construction phase ...... 84 Figure 5: Solid Waste Management...... 86 Figure 6: Cross section of recharge pit ...... 90
43
ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
1. INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE has proposed to construct Group development building T.S. NO. 495/1& 496/42, Block NO.26 OF Perambur Village, Arignar Anna Road, Avvai Nagar 1st, 2nd & 3rd Street, And Viysar Nagar 2nd & 5th Street, Perambur, Chennai - 600039. The proposal involves construction of Residential building of built up area of 22182 Sq.m. As per EIA notification 2006, any new or modernization building and construction project with built-up area more than 20,000 sq m and less than 1,50,000 sq m falls under Project schedule 8(a) and category B and thus requires to obtain environment clearance from concerned authority prior to the start of construction. The Conceptual Plan describes all the details of the project and its specific activities that will be considered for investigation of the significant adverse impacts. The report also provides specific measures that will be put to practice to minimize the impacts on the Environment.
1.2 SITE DESCRIPTION
The project site is located at Perambur village, Chennai District in the state of Tamil Nadu at latitude 13° 6'35.92"N and longitude 80°15'23.49"E.
Site Connectivity The Project Site is well connected by road, rail and air ways. The project Site is well connected by Perambur Highway at the tail of plot in the Southern direction. The nearest railway station is Perambur Railway Station located at 1.33 km in the South Western direction. The Chennai International Airport is situated at a distance of 15.85 km from project site on South Western direction.
44 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Figure 1: Map Showing Location of the Project Site
45 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
The Environmental setting of the project site is given in Table 1.
Table 1: Environmental Setting of the Project Site
S. Particulars Details No. 1. Site Location Village Perambur District Chennai St ate Tamilnadu 2. Coordinates latitude 13° 6'35.92"N longitude 80°15'23.49"E. 3. Nearest IMD station Nungambakkam- 4.69 km, SW 4. Highway (SH/NH) Perambur amin road 5. Nearest Bus Stand Vyasarpadi jeeva- 0.12 Km (S) 6. Nearest Railway station Perambur Railwa y Station – 1.33 km (S W) 7. Nearest Airport Chennai International Airport – 15.85 km (SW) 8. Nearest town/ city Perambur – 2.83 Km 9. Topography Plain 10. National parks / Wildlife Aringar Anna Zoological Park – 31.89 km ( SW ) Sanctuaries / Zoos Guindy National Park -11.82 Km (SW) 11. Reservoir/Lake Talo lake – 3.19 km (NW) Retteri lake – 6.02 km (NW) Korattur lake – 8.28 km (NW) ICF Lake – 4.26km (SW) Thanthan Kuppam Lake – 6.18km ( NW) Bay of Bengal – 4.82 km (E) Puzhal lake – 9.50 km (NW) 12. Reserved/ Protected Forests No reserve forest in 10km radius. 13. Seismicity Seismic Zone III
46 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
1.3 PROJECT COMPONENTS
The proposal involves construction of Group development building T.S. NO. 495/1& 496/42, Block NO.26 OF Perambur Village, Arignar Anna Road, Avvai Nagar 1st, 2nd & 3rd Street, And Viysar Nagar 2nd & 5th Street, Perambur, Chennai – 600039. The proposal involves construction of Residential building of built up area 21789 Sq.m. The area split up and space utilization details are given below Table 2.
Table 2: Land Use Break up Details
S.No Details Area in (Sqm) Percentage 1. Total Land Area 5294.00 2. Ground Coverage Area of Building 2131 40% 3. Roads and Pavements Area 1094 21% 4. Surface and Open Parking Area 1165 22% STP, Solid Waste Disposal and Other Utilities 2% 5. Area 110 6. Greenbelt development Area 794 15%
Total Built up Area and Floor wise area break up :
Built up area is calculated as per the latest Circular of MoEF, Dated: 2" April 2012. Built-up area is defined as ''The built-up or covered area on all the floors put together including basement(s) and other service areas, which are proposed in the building / construction project" as per the latest Circular of MoEF, Dated: 2" April 2012. Detailed built-up area calculations are given in Table 3 below.
Table 3: Built up Area statement Non FSI Parking Total FSI area Name of the Floor area area area Sqm Sqm Sqm Sqm Block A
47 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
STILT FLOOR 31.35 1425 1457.26
1ST FLOOR 597.74 597.74
2ND FLOOR 549.45 549.45
3RD FLOOR 549.45 549.45
4TH FLOOR 549.45 549.45
5TH FLOOR 549.45 549.45
6TH FLOOR 549.45 549.45
7TH FLOOR 549.45 549.45
8TH FLOOR 549.45 549.45
9TH FLOOR 549.45 549.45
10 TH FLOOR 549.45 549.45
11 TH FLOOR 549.45 549.45
Block B STILT FLOOR
1ST FLOOR 678.53 678.53
2ND FLOOR 678.53 678.53
3RD FLOOR 678.53 678.53
4TH FLOOR 678.53 678.53
5TH FLOOR 678.53 678.53
6TH FLOOR 678.53 678.53
7TH FLOOR 678.53 678.53
8TH FLOOR 678.53 678.53
9TH FLOOR 678.53 678.53
10 TH FLOOR 678.53 678.53
11 TH FLOOR 678.53 678.53
Block C
48 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
STILT FLOOR 19.36 654.61 673.97
1ST FLOOR 590.42 590.42
2ND FLOOR 590.42 590.42
3RD FLOOR 590.42 590.42
4TH FLOOR 590.42 590.42
5TH FLOOR 590.42 590.42
6TH FLOOR 590.42 590.42
7TH FLOOR 590.42 590.42
8TH FLOOR 590.42 590.42
9TH FLOOR 590.42 590.42
10 TH FLOOR 590.42 590.42
11 TH FLOOR 590.42 590.42
Table 4 : Summary of Built-up Area Calculations
Parking Area FSI Area Non FSI Area Blocks / others (Sq.m) (Sq.m) (Sq.m) BLOCK - A 6092.24 31.35 1425.91 BLOCK - B 746 3.83 BLOCK –C 6494.62 19.36 654.61 To tal 20051 51 208 0 Total Built up area 22182
Total Built up Area = 21789 Sq.m
Total no. of dwelling unit = 128 Nos.
49 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
1.4 VEHICLE PARKING FACILITIES
Parking will be provided as per the building bye laws of CMDA. Details of parking provided is given below in Table 5.
Table 5: Parking Provided
No. of No of two Area allotted S. No Details Car wheeler for parking in parks parks (Sq.m)
1. Total number of Parking in Stilt 112 18 1432
Total number of Parking in ground 2. 73 - 1085 level Tota l number of parking 3. 185 18 2517.80 provided
1.5 POWER REQUIREMENT
The power requirement for residential building is 1000 kVA. . It will be sourced from the nearby TNEB grid. DG sets of 2 nos. of 150 kVA capacities will be provided to cater essential load requirement during power failure.
The stack height for the DG sets are calculated based on the CPCB guidelines as shown below;
Stack Height Design Calculation for 250 KVA,
H = h + (0.2) (150) 0.5
= 42 + 0.2 (150) 0.5
= 44.44 ~ 44 m.
Where, H = Total height of stack in meters from ground level
50 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
h = Height of the building in meters
The stack height required as per CPCB norms is 44 m. The same will be provided for all 2 nos. of 150 KVA DG sets.
1.6 BASELINE ENVIRONMENTAL STATUS
Baseline studies were carried out to provide a detailed description of the ecosystem, landscape, infrastructure, cultural heritage and urban environment. A baseline study describes the initial state of the environment within the selected boundaries of the study area. The baseline data has been generated and secondary data collected from various Government and Semi-Government organizations. The details about the existing environmental values are projected based on the volume of the assessment accomplished during the period. The various environmental attributes were divided into primary and secondary studies. Primary attributes such as air environment, water, soil, noise & biodiversity environment were being assessed by conducting field studies, on-site monitoring. The baseline studies started with site visits and survey in the study area for fixing the monitoring locations for the primary data generation. The baseline environmental data for ambient Air, Noise, Soil and Ground water is enclosed in Annexure XI. The brief on the study of bio-diversity is summarized below.
1.1.1 Biodiversity Study Methodology The ecological status of the study area has been assessed based on the following methodology:
• Primary field surveys to establish primary baseline of the study area
• Compilation of information available in published literatures and as obtained from Forest survey of India, Botanical Survey of India and Zoological Survey of India.
51 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
The flora and fauna studies were carried out within 1 km radius around the proposed construction site.
Flora The Study of flora involved intensive sample survey of vegetation in the project site and other locations applying standard methods. To examine the trees and shrubs, quadrants of 25 x 25 m and for herbs 2 x 2 m were laid. In each of the larger quadrants (i) Species (ii) their number, and (iii) Girth at Breast Height (GBH), were measured. (Chaturvedi and Khanna, 1982).
Abundance, relative abundance, density and relative density of each species diversity and evenness for each of the Zones were calculated using the numerical data (Ludwig and Reynolds 1988, Lande 1996, Smith and Wilson 1996). The standard statistical analysis, the normal frequency diagram and distribution of plants in the study area were analyzed using the procedures of Raunkiaer, 1934. The analysis carried out as per Raunkiaer’s law of frequency classes provides the information on the Heterogeneity and Homogeneity of plants and its pattern of distribution in the study area. The species of vegetation found in each station were identified and listed according to their families, both in dicotyledons and monocotyledons of the plant kingdom. The plant species were classified as per the classifications of “Bentham and Hooker” and identified by using Gambles book on “Flora of Madras Presidency” and Mathew’s book on “Flora of the Tamil Nadu Carnatic”.
Fauna Both direct and indirect observation methods were used to survey the fauna. Visual encounter (search) method was employed to record vertebrate species. Additionally survey of relevant literature was also done to consolidate the list of vertebrate fauna distributed in the area (Smith 1933-43, Ali and Ripley 1983, Daniel 1983, Prater 1993, Murthy and Chandrasekhar 1988). Since birds may be considered as indicators for monitoring and understanding human impacts on ecological systems (Lawton 1996) attempt was made to gather quantitative data on the group by.
Point Survey Method: Observations were made in each site for 15 minutes duration.
52 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Road Side Counts: The observer traveled by motor vehicles from site to site, all sightings were recorded (this was done both in the day and night time). An index of abundance of each species was also established.
Pellet and Track Counts: All possible animal tracks and pellets were identified and recorded (South Wood, 1978).
Based on the Wildlife Protection Act, 1972 (WPA 1972, Anonymous. 1991, Upadhyay 1995, Chaturvedi and Chaturvedi 1996) species were short-listed as Schedule II or I and considered herein as endangered species. Species listed in Ghosh (1994) are considered as Indian Red List species.
Pellet and Track counts method was adopted for this development project and the assessment results are discussed in Chapter-3.
1.7 ENVIRONMENTAL COMPONENTS
The baseline environmental studies helped in assessing the existing environmental conditions of the study area and identifying the critical environmental attributes. This will facilitate the comparison of the resultant environmental conditions in the post study scenario with the pre- study conditions and will help in checking the environmental pollution.
1.8 WATER REQUIREMENT
The total water requirement during operation is 58 KLD. Source of water is CMWSSB. The wastewater generation from the project is estimated to be about 83 KLD, which will be treated in proposed sewage treatment plant of 50 KLD capacity & Greywater treatment plant of 40 KLD and will be recycled for reuse in flushing, gardening and remaining 46 KLD will be disposed into CMWSSB sewer. The estimation of water requirement and the water balance chart for both existing and proposed is shown in Table 6 and 7 .
53 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Table 6: Occupancy Load Calculation
Description for Project Occupancy S. No. Occupancy Load Components Area Details/ load (Nos.) Apartments Calculation
1. Residential Units 128 Nos. (5 person/unit) 640
Visitors & 10% of the residential 2. - 64 Maintenance staff population
Total Occupancy 704 Nos.
Table 7: Water Requirement calculation
F.WATER F.WATER FLUSHING PROJECT OCCUPANCY T.WATER REQ - S.NO REQ - WATER COMPONENTS LOAD REQ CLOTH & KITHCHEN REQ BATHING
RESIDENTYIAL 86400 38400 19200 28800 1 640 UNITS 135 60 30 45
2880 960 1920 2 VISITORS & STAFF 64 45 15 30
TOTAL 704 89280 38400 20160 30720
3 WATER REQ FOR GARDENING 794 3.5 2779
TOTAL WATER 92059
54 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Summary of water Requirement
Total water requirement = 92 KLD
Fresh water requirement for domestic purposes = 58 KLD
Fresh Water requirement for Flushing purposes = 31 KLD
Treated Water requirement for Gardening purposes = 3 KLD
Figure 2: Water balance chart
1.9 SOLID WASTE GENERATION
The solid waste from the proposed development will comprise of compostable wastes like domestic food waste, horticultural waste and recyclable waste like plastics, paper etc. As per the manual on municipal solid waste prescribed by Central Public Health and Environmental Engineering Organization (CPHEEO), the quantity of solid
55 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
waste generated varies between 0.2-0.6 kg / capita / day. Quantity of solid waste generated from the proposed residential building is given below in Table 9.
Table 9: Quantity of solid waste generated
Total solid Waste Project Occupancy Per Capita S. No. generation Components load generation Kg/day
Residential 640 0.5 320 1. Units
Visitors &
2. Maintenance 64 0.2 12.8 Staffs
Total Waste Generation in Kg/day
4. STP dry sludge - - 7.2
Source: Central Public Health and Environmental Engineering Organization (CPHEEO),
Per capita waste generation for residential are 0.5 kg / capita / day and for visitors & maintenance is 0.2 kg/day.
56 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Table 10: Waste Composition
Quantity S.No Description Mode of treatment / disposal (Tons/day)
Will be treated in organic waste convertor Biodegradable Waste within the project site. Manure generated 1 (@60% of waste 0.2 will be used for landscaping purpose generated) within project site.
Non-Biodegradable 2 waste (@30% of 0.1 Waste will be sold to recyclers waste generated
Will be used as a Manure for greenbelt 3 STP Sludge 7.2 kg/day development
Wastes generated from the households will be segregated into compostable waste, recyclable and inert waste in the source itself (by the occupants) in separate bins. Door to door waste collection system will be adopted. Compostable waste will be treated in organic waste convertor within the site. Manure generated will be used within the site for landscaping purpose. Recyclable fraction of waste will be sold to authorized vendors and inert waste will be send for land filling through authorized agency for waste collection in the area.
Organic waste convertor of various makes like Excel, Nachiket Engineering, Earth Care equipments are available. These OWC reduce volume of waste fed by 80% and convert it into manure that can be used for landscaping purpose. This manure can be stored, packed, sold and used for landscaping.
Apart from the municipal waste, E-waste comprising of rejected CFL, bulbs, laptops, TV sets, computers etc will be generated. This waste will be insignificant in
57 ETL/EAQM/JUNE 2019/01
M/s LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
initial stage. Room will be provided within project site for storing discarded electronics. This will be sold to authorized vendors on regular basis.
58 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
2. ENVIRONMENTAL IMPACT ASSESSMENT
2.1 INTRODUCTION
This chapter presents the assessment of various impacts due to construction of Group development building at Vembadi Vinayagar Koil Street, Mugalivakkam, Kancheepuram district in the state of Tamil Nadu. Generally, the environmental impacts can be categorized as either primary or secondary. Primary impacts are those, which are attributed directly by the project and secondary impacts are those, which are indirectly induced and typically include the changed patterns of social and economic activities by the proposed project. The Proposed construction project would create impact on the environment in two distinct phases:
Impacts during the construction phase Impacts during the operation phase The construction and operational phase of the proposed construction project comprises of various activities each of which will have impact on some or other environmental parameters. Various impacts during the construction or operational phase and the environmental parameters have been studied to estimate the impacts on environment. The identification and details on impact of the project activity on each of the above environmental attributes are discussed below.
2.2 IDENTIFICATION OF IMPACTS
The principal project activities that will be carried out during the construction and operational phases and the expected impacts on the environment due to the development are discussed in detail. Like any other projects, it also has impacts on existing Environmental settings and if not properly evaluated and controlled, it may lead to imbalances. These could be reversible, irreversible, temporary or permanent. The aim is to highlight specific activities that may have an impact on the existing environment so that appropriate mitigation and abatement measures can be instituted
59 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
The identification of impacts is important as it leads to the other elements such as quantification and evaluation of impacts. Although a number of non-projects related impacts have been identified while describing the existing (baseline) environmental status, it is necessary at this stage to identify the types of the potential impacts which might be caused by the proposed development. Many techniques are available for identification of impacts. In case of this project, the "Matrix Method" was adopted, which involves an understanding of the cause-condition-effect relationship between an activity and environmental parameters. It is very useful as gross screening tool for impact identification method. This method has been basically advantageous in recognizing the series of impacts that could follow from the proposed activities.
The idea was to account for the project activity and identify the types of impacts that could initially occur. This process was repeated until all possible types of impacts were identified. With this method the potential impact of the proposed project has been identified.
Table 11 : Over view of potential impacts due to the proposed construction
Project
activities Air quality Level Noise Ground Water Quality Ground Water Quantity Soil Stability/ Erosion SoilQuality Traffic Level Vegetation Socio Economic Construction Phase
Site ST, - ST, - ST, - ST, Clearance & ve ve ve +ve Leveling
Site ST, - ST, - ST, - ST,
excavation ve ve ve +ve
Foundation ST, ST,
60 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
(Pile -ve +ve Foundation)
Material ST, - ST, - Storage & ve ve Handling
Generation and disposal ST, - ST, - of ve ve construction waste
Movement ST, - ST, ST, - ST, -
of Vehicles ve -ve ve ve
Labour’s ST, -
Camp ve
Operation Phase
Occupancy LT, - LT, - LT,
ve ve +ve
Operation of -ve -ve -ve DG Sets
Sewage LT, - LT, - LT, - Generation ve ve ve & Discharge
Rainwater LT, LT,
Harvesting +ve +ve
61 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Solid waste LT, -
Generation ve
Gardening & LT, LT, LT, LT, LT, LT,
Landscaping +ve +ve +ve +ve +ve +ve
Note: ST - Short Term Impact, LT - Long Term Impact, -ve - Negative Impact, +ve – Positive Impact Based on the above table, the possible impact during construction and operation phase has been projected, the impact evaluation and mitigation measures will be derived for air, water, soil, noise and ecological environment as per the positive and negative impacts, the most visible impact during construction phase is short time negative impact which is unavoidable, which can be mitigated by the pollution control measures, and there Is no any long term permanent impact is observed due to the construction of the proposed buildings.
During operation phase sewage generation is notified as long term negative impact for which construction of proper sewage treatment plant and effective way of utilization of treated wastewater will be proper mitigation measures and solid waste management will be other activity during construction and operation phase has to effectively managed by source segregation and installation of organic waste convertor. Detailed impact evaluation is discussed below.
2.3 IMPACT EVALUATION
Impact evaluation assesses the expected changes in the environment due to the proposed project. It is the tool for identifying the magnitude of impact and forms basis for the development of Environmental Management Plan. Weight age for each impact is given below. Evaluation of impacts considering both positive and negative effects on air, noise, land, water and socioeconomic environment during the construction and operation phase of the project is given in Table 12 and 13 respectively.
62 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Table 8 : Evaluation of Construction Phase Impact
Environme
Project Impact Weigh
ntal
Activities Type t age Parameter Significant Non Significant Direct Indirect Short Term Long Term Unavoidable Irreversible Mitigation Required CONSTRUCTION PHASE
Site Negativ Clearance & √ √ √ √ √ -4 e Leveling
Site Negativ √ √ √ √ √ -4 excavation e
Foundation
Negativ (Shallow √ √ √ √ 0 Foundation e AIR ) ENVIRON Material MENT Negativ Storage & √ √ √ √ √ -4 e Handling
Generation and Negativ disposal of √ √ √ -4 e constructio n waste
Vehicular Negativ √ √ √ -4 Movement e
63 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Labour’s No - Camp Impact
Public No Health & - Impact Safety
Economic No - Activity Impact
Site Negativ Clearance & √ √ √ 0 e Leveling
Site Negativ √ √ √ -4 excavation e
Foundation
Negativ (Shallow √ √ √ √ -4 NOISE Foundation e ENVIRON ) MENT Material Negativ Storage & √ √ -1 e Handling
Generation and No disposal of - Impact constructio n waste
64 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Vehicular Negativ √ √ √ -1 Movement e
Labour’s No - Camp Impact
Public No Health & - Impact Safety
Economic No - Activity Impact
Site No Clearance & - Impact Leveling
Site No - excavation Impact LAND Foundation ENVIRON Negativ MENT (Shallow √ √ -1 Foundation e )
Material Negativ Storage & √ √ √ √ -4 e Handling
65 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Generation and Negativ disposal of √ √ -4 e constructio n waste
Vehicular Negativ √ √ √ -1 Movement e
Labour’s No - Camp Impact
Public No Health & - Impact Safety
Economic No - Activity Impact
Site Negativ Clearance & √ √ √ -2 e Leveling
Site No WATER - ENVIRON excavation Impact
MENT Foundation
No (Shallow - Foundation Impact )
66 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Material Negativ Storage & √ √ √ √ -4 e Handling
Generation and Negativ disposal of √ √ √ √ -4 e constructio n waste
Vehicular Negativ √ √ 0 Movement e
Labour’s Negativ √ √ √ √ -4 Camp e
Public No Health & - Impact Safety
Economic No - Activity Impact
Site Negativ SOCIO Clearance & √ √ √ √ -2 e ECONOMIC Leveling ENVIRON Site Negativ MENT √ √ √ √ -2 excavation e
67 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Foundation
Negativ (Shallow √ √ √ √ -2 Foundation e )
Material Negativ Storage & √ √ √ 0 e Handling
Generation and Negativ disposal of √ √ √ √ -2 e constructio n waste
Vehicular Negativ √ √ √ √ -2 Movement e
Labour’s Negativ √ √ √ √ -2 Camp e
Public Health & Positive √ √ √ 6 Safety
Economic Positive √ √ √ 6 Activity
68 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Table 13: Evaluation of operation phase impact
Environ
mental Project Impact Weigh
Parame Activities Type t age ter Significant Significant Non Direct Indirect Short Term Long Term Unavoidable Irreversible Mitigation Required OPERATION PHASE
Occupancy No - Impact
Operation of Negative √ √ √ √ -8 DG Sets
Sewage
AIR Generation Negative √ √ 0 ENVIRO & Discharge
NMENT Rainwater No - Harvesting Impact
Solid waste Positive √ √ √ -6 Generation
Gardening & Positive √ √ √ 10 Landscaping
Occupancy No - NOISE Impact ENVIRO Operation of NMENT Negative √ √ √ √ -8 DG Sets
69 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Sewage No Generation -- Impact & Discharge
Rainwater No - Harvesting Impact
Solid waste No - Generation Impact
Gardening & Positive √ √ √ 10 Landscaping
Occupancy Negative √ √ 0
Operation of Negative √ √ √ 0 DG Sets
Sewage Generation Negative √ √ √ √ -8 LAND & Discharge ENVIRO Rainwater NMENT Positive √ √ √ 8 Harvesting
Solid waste Positive √ √ √ √ -8 Generation
Gardening & Positive √ √ √ 10 Landscaping
WATER Occupancy Negative √ √ √ √ -8
70 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
ENVIRO Operation of No impact √ √ √ √ -6 NMENT DG Sets
Sewage Generation Negative √ √ √ √ √ -8 & Discharge
Rainwater Positive √ √ √ 10 Harvesting
Solid waste Positive √ √ 0 Generation
Gardening & Positive √ √ √ 10 Landscaping
Occupancy Positive √ √ √ 10
Operation of No impact √ √ √ √ -6 DG Sets
Sewage SOCIO Generation Negative √ √ √ √ -6 ECONO & Discharge MIC Rainwater ENVIRO Positive √ √ √ 8 NMENT Harvesting
Solid waste Positive √ √ √ -6 Generation
Gardening & Positive √ √ √ 8 Landscaping
71 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
The above table acts as tool for identifying the magnitude of impact which forms the basis for the development of Environmental Management Plan. Weight age for each impact is tabulated above, which indicates the possible activities during construction and operation phase that are likely to impact the environment. The potential impacts, whether positive or negative, long term or short term, direct or indirect, whether the impact can alter or cause damage to the particular environment or can it be controlled from the source, can it be reversible, has been clearly identified in the above table.
2.4 IMPACT ON AIR ENVIRONMENT
2.4.1 Construction Phase Impacts of construction activities on air quality are cause for concern mainly in the dry months due to dust particles. The main sources of emission during the construction period are the movement of equipment at site and dust emitted during the leveling, grading, earthworks, and other construction related activities. The dust emitted during the above mentioned activities depend upon the type of soil being excavated. However, the impact will be for short duration and confined locally to the construction site. The composition of dust in this kind of operation is, however, mostly inorganic and non-toxic in nature.
The impact of such activities would be temporary and restricted to the construction phase. The impact will be confined within the project boundary and is expected to be negligible outside the plant boundaries. Proper upkeep and maintenance of vehicles, sprinkling of water on roads and construction site are some of the measures that would greatly reduce the impacts during the construction phase. Thus, it is inferred that no significant impacts are expected on the overall ambient air quality due to the proposed construction activities.
Transportation and Storage of Construction Materials
Transportation of heavy machinery and building materials implies heavy traffic on the roads leading to the site with possible negative impacts to the surrounding area
72 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
(dust, spillage, emissions and noise). The transport of materials such as concrete and asphalt, gravel, sand and cement to construction sites generate significant amounts of road dust, especially for sites that are relatively far from material manufacturers. It will also lead to inadvertent dispersal of materials during heavy rain or high wind during dry periods. Measures will be adopted for proper handling of construction materials to reduce the negative impact.
2.4.2 Operation Phase Ambient air quality at the proposed project site and its surroundings was monitored
and values of the pollutants RPM, PM 2.5, NO x and SO 2 are within the limits of NAAQS, 2009 prescribed by the central pollution control board. The test reports are enclosed as Annexure.
There is no major pollutant envisaged from the proposed development. It is likely that the air quality may be affected slightly due to the demolition activity and emissions from the vehicular movement. The emission from DG sets will be very negligible since it will be used only during power cut in the necessary area. These emissions are insignificant and the environmental pollutant levels are being maintained within the prescribed limits, which can be inferred from the baseline report enclosed. Hence there shall not be any adverse impact on the air environment due to the Proposed Residential complex.
2.5 IMPACT ON AMBIENT NOISE
2.5.1 Construction Phase During the construction phase, noise levels will increase due to use of machinery and heavy vehicles in the project area. In terms of noise emission; demolition, excavation and construction work can be divided into two phases, namely (1) Demolition and Earthworks and (2) building works. Hydraulic excavators and hammers for demolition, loading and unloading of construction materials, fabrication, handling of equipment and material, operation of power shovels etc. will be the major source of
73 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
noise during the construction phase. Various construction activities will cause short- term noise impact in the immediate vicinity of the project site.
The areas affected are those close to the site and hence the impacts are localized. At the peak of the construction, marginal increase in noise levels is expected to occur. The peak noise levels from continuous construction activity may be as high as 80 - 90 dB (A). The noise control measures during construction phase shall restrict the noise levels to lower levels. Hence the overall impact on the ambient noise levels will not be significant.
2.5.2 Operation Phase There will not be any major impact from noise. This is because no equipment or other infrastructure facility in the project generates noise more than 50-60 dB (A). However, the only noise generation source is the DG set. The promoters have decided to adopt adequate steps to maintain the noise levels within the prescribed limits. For the same all the DG facility will be equipped with acoustic enclosure. Apart from this honking will be prohibited at the site and speed limits will be restricted within the site. This will significantly help in controlling noise levels at the site. Further the green belt provided within the site will act as noise barrier between inside and outside environment. This will act as buffer and protects the site from high noise levels outside the site.
Traffic Noise
Traffic will increase during both construction and operation phase of the project. Vehicles associated with construction would generate intermittent noise throughout the vicinity of the proposed action. In the operation phase, vehicular parking is being provided in the basement, and stilt of the building where noise levels are expected to increase substantially during the peak hours due to starting, idling and roaring of vehicles.
74 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
2.6 IMPACT ON LAND ENVIRONMENT
No blasting will be done during construction phase of the project. The rehabilitation and resettlement issues are not involved in the project. Furthermore the existing environmental conditions of the project site reveal that the land is not contaminated or polluted.
Top soil will be excavated up to 15 cm from the project site. It will be stored in covered area during construction phase and will be used for landscaping in operation phase within project site. The upper/top level of soil will be affected during construction phase but this will be limited to a portion of the project area. Also the impact due to exploitation of ground water is insignificant in the site due to the sourcing of water from other sources during the operation phases.
2.7 IMPACT ON WATER RESOURCES
2.7.1 Construction Phase The required water quantity for construction will be utilized from the available resource in the project area. Impact on water quality during construction phase may be due to non-point discharges of sewage generated from the construction work force, stationed at the site. Construction activities for the proposed development can have minor impact on hydrology and ground water quality of the area if the construction waste leaches into ground.
Potential sources of impacts on the hydrology and ground water quality during the construction phase would be soil runoff, improper disposal of construction debris, spillage of oil and grease from the vehicles and wastewater stream generated from on site activities such as vehicles washing, workshop etc. Precautions and preventive measure will be taken at the site during construction to avoid any ground and surface water contamination hence the overall impact on water environment during construction phase due to proposed project is likely to be insignificant.
75 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
2.7.2 Operation Phase The total quantity of wastewater generation is likely to be 83 KLD in which 35KLD of greywater will be treated separatly in 40 KLD of greywater treatment plant and 48 KLD of black water will be treated in STP of 50 KLD and will be recycled for flushing, gardening remaining excess treated sewage will be disposed through CMWSSB Sewer line.
2.8 IMPACTS DUE TO WASTE DISPOSAL
2.8.1 Stacking and Disposal of Construction Materials Stacking of construction materials will be confined to the project site only and also temporary sheds will be provided to store the materials, hence no impacts on surrounding area will be envisaged. Solid wastes generated due to proposed project during construction phase include sand, gravel, stone, bricks, plastic, paper, wood, metal and glass. Recyclables will be sent to authorized recyclers. Hence there is no significant impact due to waste disposal during the construction phase.
2.8.2 Operation Phase
The solid waste generated from the project will be collected daily and moved to a common temporary storage facility by the staff dedicated for waste collection. The collected Solid waste will be disposed through Organic waste converter.
2.9 IMPACTS ON ECOLOGICAL RESOURCES
2.9.1 Construction Phase
The impact of construction activities will be primarily confined to the project site. The project site is a vacant land and devoid of any vegetation. Thus the site development work will not lead to any significant loss of any important plant species. Deposition of fugitive dust on leaves of nearby vegetation may lead to temporary reduction of photosynthesis. Such impacts will, however, be confined mostly to the
76 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
initial period of construction phase. Hence the proposed development will not lead to habitat destruction, fragmentation or vegetation damage.
2.9.2 Operation Phase No wastewater will be discharged into the surface water stream. Hence, there will not be any impact on the aquatic ecology. Also the proposed project is to be located in an earmarked Residential zone, which does not have any natural park or sanctuary or forest area in the immediate vicinity. The flora and fauna pattern in the area will not be disturbed due to the project. Hence the overall impact on ecological resources due to proposed project is likely to be insignificant. Moreover the entire project area would be landscaped with variety of plants.
2.10 IMPACT ON TRAFFIC LEVELS
2.10.1 Construction Phase The movement of construction equipments will be mostly within the site during the project. Vehicles bringing in raw materials like sand, cement and aggregate materials will be moving into the site from outside, which will be strictly controlled and monitored as per the traffic rules, to avoid any sort of disturbance to the traffic and safety of the surrounding areas. Hence the impact due to the vehicular movement during the construction phase would be minor or insignificant.
2.10.2 Operation Phase Based on the vehicular density observed during the traffic survey conducted on the main roads around the proposed site, the existing infrastructure is capable of taking up additional traffic loads. Hence there will not be any impact on the traffic pattern and density.
Traffic assessment of the Perambur main road was carried out to estimate the peak traffic load. The existing traffic load during the morning and evening peak hours were studied and the vehicle counts were categorized under different heads. The
77 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
different categories of vehicular load were converted to PCU equivalents by applying the respective “M” factors. The peak traffic load in terms of PCUs was arrived and the incremental traffic due to the project was worked out. This projected traffic load (incremental) was compared with the standard carrying capacity of the existing road. It was observed that the ratio between Volume and Capacity (V/C ratio) was well within the limits. Hence the impact of the traffic due to the proposed project is insignificant.
2.11 IMPACTS ON SOCIO ECONOMIC ENVIRONMENT
The required land for the development is owned by M/s. Lifestyle Housing and Infrastructure. The proposed residential complex will be open to members of all communities and castes. The above measure will encourage mixing of different caste people for their respective festivals and occasions. This will improve the social welfare and brotherhood among the various communities and castes.
Also the state of the art facilities proposed in the development is planned to cater the needs of the occupants which would be able to provide healthy working atmosphere. Hence it is obvious to assume that the activities of the proposed development will produce some positive impacts in the socio-economic status of the area.
2.11.1 Public Health and Safety
As the project is only a construction of residential complex and all the construction activities are confined to the project site, no health related impact would be envisaged within the project area. The people engaged in the construction activities will be directly exposed to dust generation, which is likely to cause health related impact. Appropriate mitigation measures like spraying of water will be adopted to minimize dust emission in the construction site. Laborers will be provided with suitable Personal Protective Equipment (PPE) as required under the health and safety norms. Regular health checkups will be organized.
78 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
2.11.2 Positive Impact
The project will facilitate maximum participation of the local work force for construction process; this will benefit the local economy, improvement in economic activity and enhancement in earning opportunities for the local population. The operation of the project and other allied facilities will improve the employment opportunities. The project will provide direct and indirect employment. About 100 – 150 persons will be employed during the operation stage for the purpose of day-to-day maintenance works. The employment will have positive impact on the local economy thereby increasing the quality of life. The proposed rain water recharge facility will augment the ground water level in the project area. The proposed project will also improve the aesthetics of the area due to the development of modern buildings.
79 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
3. ENVIRONMENTAL MANAGEMENT PLAN
3.1 GENERAL
Environmental Management Plan (EMP) is aimed at mitigating the possible adverse impacts of the project and for ensuring to maintain the environmental quality. The environmental management plan consists of the set of mitigation, management, monitoring and institutional measures to be taken to eliminate the adverse environmental impacts or reduce them to acceptable levels.
3.2 AIR POLLUTION CONTROL AND MANAGEMENT
3.2.1 Construction Phase
The impacts will be due to the air emissions like Particulate matter (PM 10 & PM 2.5 , CO 2,
NOx and SO 2) due to material handling, vehicular movements and other site activities. The particulate matters will be reduced by frequent sprinkling water on the road surfaces and on other areas where dust is arising due to material handling. All the equipments and vehicles used in the construction and transportation of materials will be maintained properly and only low sulphur diesel will be used as fuel for DG sets and construction equipment and vehicles. Setting up temporary portable concrete plants and/or asphalt plants at construction sites can eliminate haulage of materials. Also proper coverage of material storage at site reduce dust emission due to wind.
The emissions from the DG sets will be let out only through the stacks with adequate heights as per CPCB norms. This will avoid the deposition of the particulate matters and other pollutants by facilitating the through dispersion of pollutants into the atmosphere. The stacking of all the construction materials will be confined only within the proposed site. Vehicles carrying the raw material and debris will be covered to minimize dust emissions while travelling. Adequate parking space will be provided for construction vehicle and machinery to prevent idling and thus will help in minimizing the emissions. Wheel wash facility will be provided at the exit point of the site.
80 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
3.2.2 Operation Phase Air emissions are observed during the operation phase of the project. The air emissions will be reduced by ensuring smoother flow of traffic within the premises by better traffic management plans. It is proposed to have trees all through the boundaries of the site and along the either side of the internal roads. This will reduce the particulate matters from being transported to the nearby areas. The air emissions from the Diesel Generators will be controlled by using low sulphur content high speed diesels, periodic maintenance of DG sets as per the defined schedule of manufacturer and by providing adequate stack heights as prescribed by CPCB. The stack height for the DG sets are calculated based on the CPCB guidelines as shown below;
The proposed project to have
2 nos. - D.G. Sets of 150 KVA Capacity each
Air Pollution Control (APC) Measures
The main source of air emissions from the proposed development is the Generator Sets the above proposed generator sets will be used only during TNEB power failure. To control the air emissions from these D.G sets, adequate stack height is provided to release the exhaust flue gases into the atmosphere at a height at which efficient dispersion takes place. Since the DG sets are operated only during power failure, the emission is not continuous and hence the impact due to these emissions is insignificant.
The stack height for the DG sets are calculated based on the CPCB guidelines as shown below;
Stack Height Design Calculation for 150 KVA
H = h + (0.2) (150) 0.5
= 42 + 0.2 (150) 0.5
= 44 m.
81 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Where, H = Total height of stack in meters from ground level
h = Height of the building in meters
The stack height required as per CPCB norms is 44 m.
The stack height required as per CPCB norms is 44 m. The same will be provided for all 2nos. of DG sets
3.3 NOISE CONTROL AND MANAGEMENT
3.3.1 Construction Phase The noise generated from the construction equipments will be reduced through proper maintenance of all the equipments which are involved in construction activities, confining the construction activities only during the day time and providing barricades all around the project area. The adverse impacts of noise especially on workers will be reduced by providing ear muffs to the workers in high noise zones. Noise control systems such as equipment foundation pads, dampeners, silencers and acoustic enclosures will be used for individual units as per the requirement to minimize the noise & vibration. Equipments will be selected to ensure that the noise level will be less than 55 dB(A). The earth moving equipments will be periodically checked and maintained for noise levels.
3.3.2 Operation Phase The increase in the ambient noise levels due to the vehicle transportation will be controlled by the development of the green cover all along the internal roads and by implementing better traffic management plans inside the site premises. The better traffic management plans will significantly reduce the noise generated due to the congestion caused by the movement of vehicles.
82 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
The generator noise is controlled by providing acoustic enclosures. Proper air ventilation system is designed to allow the maximum aspiration and cooling airflow required so that the engines do not overheat. Axial flow fan of required size & numbers provided for proper air ventilation. Acoustic louvers, splitter & insulated ducts are provided to suppress the noise where required. Also during operation care will be taken to ensure that there will not be any incremental load in the environment.
3.4 SOLID WASTE MANAGEMENT
3.4.1 Construction Phase Separate raw material handling yard will be demarcated. This will prevent the contamination of the soil due to the spillage of the construction materials. Cement will be separately stored under cover in bales. The raw material handling yard will be located within the project site and separated by enclosures/barricades. This will keep the working area clean and reduce the soil contamination. The solid waste expected to be generated during the construction phase will 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 proposed for storage of construction materials.
• The excavated material such as topsoil and stones will be 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 etc.
83 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Figure 3: Solid Waste Management during construction phase
3.4.2 Operation Phase During the operation phase the used oil from the DG sets will be collected in separate drums and handed over to the authorized recyclers by TNPCB.
Hazardous Waste: During the operation phase the used oil, DG filters, oil mixed cotton waste and oil containers from the DG sets will be collected in separate place.
Generation and disposal of Hazardous waste Quantity per annum is given in Table 13
Table 9: Hazardous Waste Generation and Disposal
Activity/Activities for which Quantity in Waste Description authorization is required S.No Tonnes/per category of waste annum Collection & Transport & Storage Disposal
84 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
DG Filters & MS drums Disposal through 1 35.1 filter 0.5 within the TSDF facility material premises MS drums Disposed to 2 5.1 Used oil 0.4 within the authorized re – premises processors Non- Hazardous Waste:
It is estimated that the municipal solid wastes will be generated in the following
Biodegradable wastes : 0.2 Tons/day Non-biodegradable wastes : 0.1 Tons/day Sludge from STP : 7.2 Kg/day
In the Residential Housing development, Wastes generated from the households will be segregated into Bio degradable waste and non- bio degradable waste in the source itself (by the occupants) in separate bins. The wastes from such bins are collected separately on daily basis and taken to a separate centralized collection facility by the agency dealing in collection and disposal of garbage. Appropriate site will be identified for keeping the biodegradable and Non-biodegradable waste. All the collection bins shall be properly maintained and cleared on regular basis. The Bio degradable wastes & inert fractions will be disposed off through the local municipality, and non-bio degradable recyclable waste will be handed over to authorized recyclers.
Horticulture wastes leaves, grass and vegetative residues shall be collected at the secured location such that it will not hinder daily activity schedule or washed away by the surface run-off causing choking of drains, etc. and will be separately treated and disposed off along with biodegradable waste.STP sludge will be stabilized, and dewatered for separation of solids, which will be used as manure in horticulture.
85 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Figure 4: Solid Waste Management
Solid waste
Source Separation
Non Biodegradable Waste Biod egradable Waste
Collection point Collection point
Sent to authorized recyclers Organic waste converter
3.5 WATER AND WASTEWATER MANAGEMENT
3.5.1 Construction Phase The wastewater generated by the construction workers will be treated and disposed through septic tank with soak pit arrangement. All the water storage tanks/containers will be maintained without any leaks. Runoff from the construction site shall not be allowed to stand or enter into the roadside. Adequate measures will be taken to collect such runoff and either are reused or disposed-off at the designated construction waste disposal location. Necessary precaution and preventive measures will be taken at the site during construction to avoid any groundwater and surface water contamination.
3.5.2 Operation Phase
It is proposed to use the recycled water for the part of the daily water demand in the premises. The total water requirement during operation is 180 KLD and the fresh water requirement is 111 KLD. The source of water is taken to be CMWSSB since the quality of borewell water from the baseline study was found to be TDS 5010 mg/L; Total hardness 2424 mg/L; sulphates 2150 mg/L and chlorides 1360 mg/L does not comply with drinking water specification as per IS 10500:2012. Hence it is not recommended for drinking purpose, and it is also not advisable for other domestic uses
86 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
due to very high salt content. In case of emergency, Water Treatment Plant will be proposed for domestic uses, for which the quality of treated water will be TDS < 500 mg/L; Total hardness < 300 mg/L; chlorides < 250 mg/L and sulphates < 200 mg/L. The components of water treatment plant will be aeration tank, settling tank, sand filter and carbon filter with iron removal media filled in it. The wastewater generation from the project is estimated to be about 83 KLD, which will be treated in proposed sewage treatment plant of 50 KLD capacity and will be recycled for reuse in flushing, gardening and remaining 46 KLD will be disposed into CMWSSB sewer. The sewage treatment design is described in the Annexure - VII .
3.6 STORM WATER MANAGEMENT
3.6.1 Construction Phase The surface runoff during the construction period will be directed into the drains separately provided for this purpose.
3.6.2 Operation Phase
Rain water from internal roads etc will be discharged through storm water drain sloping towards rain water collection sumps. The Rainwater down comer pipes from terrace level directly connected to rainwater inspection chambers interlinked and discharged to filtration bed to store Rain water of min. An overflow pumping main pipe will be laid as lead pipe from rainwater harvesting trench up to the road for draining the excess water during rainy seasons. As per Rain water harvesting & conservation manual by CPWD, Govt .of India, it is necessary to provide rain water sump with the capacity to meet per day fresh water requirement.
87 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
TABLE 3. RUNOFF CO-EFFICIENT OF VARIOUS SURFACES AS PER CPWD
S.NO VARIOUS SURFACE AREA CO-EFFICIENT
1 ROOF CATCHMENT 1.1 Tiles 0.8 -0.9
1.2 Corrugated metal sheets 0.7 -0.9
2 GROUND SURFACE COVERING
2.1 Rocky material catchm ent 0.2 -0.5
2.2 Residential complex in suburban areas 0.5 -0.7 apartment 2.3 Parks, cemeteries 0.10 -0.25
2.4 Unimproved land areas 0.10 -0.25
2.5 Asphaltic or concrete pavement 0.7 -0.95
2.6 Brick pavement 0.70 -0.85
2.7 Play ground 0.2 -0.35
DESIGN PARAMETERS:
Total Plot Area Considered : 5294 Sq.m Total roads and pavement area : 1094 Sq.m Total Greenbelt Area : 794 Sq.m Total Roof Area : 2131 Sq.m
Annual rainfall considered in Chennai : 1.2m
Co – efficient of runoff considered for roof area : 0. 85 Co – efficient of runoff considered for road/paved area : 0. 75 Co – efficient of runoff considered for landscape area : 0. 25
88 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Hence, the total quantity of rainfall will be: q= a x p x r q = quantity of rainwater run - off in cu.m a = area of catchments drained in Sq.m p = permeability factor r = rainfall intensity in m
Table 10: Run –off Calculations
Total Area in coefficient Annual rainfall Description Rainwater (Sqm) runoff (m) Runoff (Cum)
Road area 1094 0.75 1.2 984.6
Landscape area 794 0.25 1.2 238.2
Roof area 2131 0.85 1.2 2173.62
Total Annual Rainfall potential 3396.42
Considering 50 days rainy day in 365 days, per day 68 rainwater will be Rain water collection sump capacity (100 % of the roof top 43 collection per day is 43 cu.m/hr) RWH pit capacity (Dia 1.2m and Depth 1.5m) 1.7
No. of Pits Provided 15 Run-off to recharge pit 26 Details of recharge pit arrived based on soil conditions is briefed below
Recharge through Pit:
Recharge through Pits : 15 nos.
89 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Recharge pits are normally excavated as any shape, which are sufficiently deep to penetrate the low-permeability layers overlying the permeable layer.
A portion of rain water falling over the roofs, road and paved area and the open area will be used for recharging the ground water. Recharge pits are normally excavated as any shape, which are sufficiently deep to penetrate the low-permeability layers overlying the permeable layer. They are similar to recharge basins in principle, with the only difference being that they are deeper and have restricted bottom area. In many such structures, the infiltration occurs vertically through the permeable layer is much higher than the low permeable layer occurring in the top.
Cross section of recharge pit:
Figure 5: Cross section of recharge pit
90 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
The pits will be filled with Boulders for 1.1m depth at bottom, 40mm Jelly Stone for 0.75m, 20mm Jelly stone for 0.3 m, coarse sand for .15 m at middle and 20mm jelly stone at the top in graded form. The silt content that will come with runoff will be deposited on the top of the fine sand layer and can be easily be removed. The top sand layer of the recharge pits will be periodically cleaned to ensure the proper recharge.
RECHARGE TRENCHES
Recharge trenches are normally excavated as linear pits, which are sufficiently deep to penetrate the low-permeability layers overlying the permeable layer. They are similar to recharge basins in principle, with the only difference being that they are deeper and have restricted bottom area. In many such structures, the infiltration occurs vertically through the permeable layer is much higher than the low permeable layer occurring in the top. Recharge Trench will be constructed in the premises of the company across the slopes.
Details of Recharge Trenches: Trench is maintained all along the boundary. It is planned to remove the entire impervious layer to facilitate rain water recharge. Pebbles of different size are provided in an ascending order in the tank and a layer of sand is be provided on top of the filter media. The rain water flowing through the open land, paved area and green belt area will be used for recharging to ground water through the above said trenches
Rain Water Storage Sump
The Rain water storage and harvesting plan has been designed as per the Rain water harvesting (RWH) & conservation manual by CPWD, Govt .of India, 2002 & in compliance with Ministry Notification dated 9th December 2016 under 20,000 to 50,000 Sqm category. Rain water storage sump 46 KLD capacity- 2 nos. is proposed for rainwater storage.
91 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Flood Occurrence:
The highest recorded monthly rainfall in that area and surroundings of Chennai is 1017.7 mm in 2015. Considering the previous 5 years day peak rainfall (Refer Table below from IMD) the storm water management has been done, the total peak flow at the site by taking 1.3 m of Annual rainfall in site, the runoff will be 5624.62 cubic meter/hr after development, the recharge pit, storm water collection sump and storm water collection drain have been designed in the site to the manage the rain water during heavy rainfall time.
INDIA METEOROLOGICAL DEPARTMENT - DISTRICT RAINFALL (MM.) FOR LAST FIVE YEARS
Note: (1) The District Rainfall (mm.) (R/F) shown below are the arithmetic averages of Rainfall of Stations under the District.
Table 11: Five Yearly Rainfall
Year Jan Feb Mar April May June July Aug Sep Oct Nov Dec 2013 0 24.3 13.7 0 16.7 73.8 135.3 153.3 172.8 137. 1 116.9 61.4 2014 0.5 3.4 0 0 35.7 117.6 50.9 130.9 130.6 196.3 135.0 106.9 2015 1.7 0 0 49.5 45.4 32.2 102.2 140.4 70.3 179.8 1061.3 574 2016 0.4 0 0 0 173.2 81.6 76.6 112.7 213.3 28.6 26.1 280.0 2017 16.4 0.1 0 0 14.4 67.8 98.8 228.6 98.7 287.6 335.7 49.3
Source: Consolidated Report from Indian Meteorological Department
3.7 LANDSCAPE AND ECOLOGICAL MANAGEMENT
3.7.1 Construction Phase It is proposed to plant plantation on landscape area and all through the boundaries of the site and along the either side of the internal roads. This will have positive impact over the fauna of the locality.
92 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
3.7.1.1 Pre-Construction Phase
a) Assessment of Flora in the Study Area
The Vegetation present within a defined area is termed as a plant community. This is determined by the nature of the dominant species it contains. By the term dominant species or dominance it is understood that species of plants having same life and growth, forms predominating in an area. A systematic order of angiosperm families recorded in the study area is given in Table 16. The distribution of vegetation at different sites, its density, dominance, frequency, Importance Value Index (IVI), economic importance, and medicinal uses were studied and the results are given in the following sections.
Table 12 Distribution of Vegetation in the Study Area
I. Agricultural Crops Nil
II. Plantation Nil
III. Natural Vegetation
a. Herbs & Flowers Heliconia psittacorum, Hibiscus rosasinensis, Prosopis juliflora, Glycosmis pentaphylla, Ixora coccinea, b. Shrubs bougain villae Azadirachta indica, Cocos nucifera, Carica papaya, Psidium c. Trees guajava, Emblica officinalis, Mimusops elengi, Nerium Oleander IV. Endangered Nil Species V. Endemic Species Nil
Mimosa pudica, Solanum trilobatum, Indigofera Tinctoria, VI. Medicinal Plants Costus pictus, Eclipta prostrata ,Gymnema sylvestre
93 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Assessment of Fauna in the Study Area
The details of fauna found in the study area are given in the Table No. 17
Table 13: Fauna in the Study Area
S. NO. Common Name Scientific Name Status BUTTERFLIES AND INSECTS 1. Dragon fly Agrion sp & Petalura sp C 2. Grasshopper Hieroglyphus sp C 3. Ant Monomorium indicum C 4. Termite Cryptotermes brevis C AMPHIBIANS 1. Common Indian Toad Bufo melanostictus C REPTILES 1. Common Garden lizard Calotes versicolor C 2. Common skink Mabuya carinata C BIRDS 1. Alexandrine parakeet Psittacula eupatria C , R 2. Shikra Acci piter badius C, R 3. Spotted Dove Streptopelia chinensis C, R 4. Little crake Porzana parva C, R 5. Spotted Owlet Athene brama C , R 6. Black Drango Dicrurus adsimilis C , R 7. Common Myna Acridotheres tristis C, R 8. House Crow Corvus splendens C, R 9. Jungle Crow Corvus macrorhynchos C, R MAMMALS 1. Indian Palm squirrel Funambulus palmarum C, R
94 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
2. House mouse Mus musculus C, R 3. Cat Felis catus C, R 4. Dog Canis lupus familiaris C, R
It is proposed to plant plantation on landscape area and all through the boundaries of the site and along the either side of the internal roads. This will have positive impact over the fauna of the locality.
3.7.2 Operation Phase The total landscape area will be around 794 Sq.m. It is also proposed to plant only the native species of plantations. In addition to augmenting present vegetation, it will also provide a dense tree cover, good sound and dust barriers. It will also check soil erosion, make the ecosystem more diversified and functionally more stable, make the climate more conducive and restore balance. As per MOEF EIA Notification, dated 09, December 2016, minimum of 1 tree for every 80 square meters of land should be planted and maintained. For plot area of 5294 Sq.m, total no. of trees to be planted is 66. As per guidelines of CPCB , the three main criteria for selection of plants may be as follows, • Trees, shrubs will have dense foliage with a large surface area, because leaves absorb pollutants. • Evergreen trees are found to be more effective. • The species chosen must be resistant to pollutants, particularly in the early stages of their growth. • The species chosen may be native species and drought tolerant. The following species are proposed for the plantations in the site in addition to the existing trees.
95 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
Table 14 : Proposed Trees Plantation Within project Site
Pongamia glabra Pungan
Thespesia populnea Poovarasu
Ficus religiosa Arasu
Azadirachta indica Vembu
Terminalia arjuna Neermarudhu
Calophyllum inophyllum Punnai
Syzygium cumini Naval
Ma dhuca longifolia Ilippai
Mimusops elengi Magilam
Table 15: Proposed Shrubs & Flowers Plantation Within project Site
S.No Scientific Name Common name 1. Acalypha indica kuppaimeni 2. Bougainvillea Vellai mandarai 3. Caesalpinnia pulchremma cemmayirkkonrai 4. Cassia alata semaiagathi 5. Ficus benjamina nintamaravagai 6. Heliconia psittacorum Kalvazhai 7. Hibiscus rosasinensis Sembaruthi 8. Ixora coccinea Idly poo 9. Nerium oleander white Sevvarali 10. Pennisetum sp Thenai 11. Pisonia alba Nanju Murichan 12. Plumbago capensis Karunkodivelli
96 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
13. Tecoma gaudichaudi Nagasambagam 14. Thuja orientalis Sagadam
3.8 SOCIO ECONOMIC DEVELOPMENT PLAN
3.8.1 Construction Phase Only locally available workforce will be used for the construction purpose. This will result in the improved economic condition of the people of that area, at least during the construction period. Medical checkups will be done at regular intervals to all the employees working. Trained first aid personnel will be made available round the clock throughout the construction phase. The safety procedures will be made available with the respective shift in charges and the same will be pasted in the workplaces. All the employees involved in the construction activities will be provided with the necessary Personal Protective Equipments (PPE) and instated to use it. Occupational health and safety orientation training will be given to all employees consisting of basic hazard awareness, site-specific hazards, safe working practices, and emergency procedures. Monthly safety assessment meetings will be conducted to identify potential safety issues (e.g., site access, construction, work practices, security, transportation of heavy equipment, traffic management, emergency procedures and fire control and management) and measures to mitigate them.
3.8.2 Operation Phase The local people will be employed in the as service providers/maintenance staffs. This will improve the circulation of money in the study area. The project also stimulates the auxiliary developments around the project area. This will result in the development of necessary infrastructure and amenities at least around the project site.
97 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
3.9 ENERGY CONSERVATION
Energy conservation will be one of the focuses during the project planning and operation stages.
3.9.1 Energy Saving Practices • Using the energy efficient light fixtures like LED in common areas/rooms. • Solar panels. • Using variable frequency drive(VFD) for pumps in water supply and treatment plants Energy Conservation Measures
Building Construction Data In accordance with Energy Conservation Building (ECBC) Code 2007 norms, Chennai comes under warm & humid climate zone. Hence, based on the ECBC norms, U Values considered are as follows:
Roofs & Opaque Walls
Roofs and opaque walls shall comply with either the maximum assembly U-factor or the minimum insulation R-value. R-value is for the insulation alone and does not include building materials or air films. The roof insulation shall not be located on a suspended ceiling with removable ceiling panels.
Table 16 :The U-values of the roof and opaque wall of the building
The U-values of the roof and opaque wall of the building will meet the requirements as specified in the Energy Conservation Building Code (ECBC) Permissible U - ECBC Resultant Value due to the Value as per Clause: Component proposed configuration ECBC (Reference) (W/m 2°C) (W/m 2°C)
98 ETL/EAQM/JUNE 2019/01
M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN
4.3.1 Roof U-0.261 R-3.5 4.3.3 Wall U-0.44 R-2.1
Vertical Fenestration
Vertical fenestration shall comply with the maximum area weighted U-factor and maximum area weighted SHGC requirement. Vertical fenestration area is limited to a maximum of 60% of the gross wall area for the prescriptive requirement.
Table 17: Vertical Fenestration
40% WWR=40% Electrical & LV Systems a. Copper conductor cables are specified for sizes of 16 sq mm and below, this will reduce losses and improve reliability. b. All lifts shall be provided with AC variable voltage, variable frequency drives (ACVVF). c. Power factor shall be maintained 0.95 or higher. This will reduce electrical power distribution losses in the installation. d. Timers and photo-electric sensors shall be used to switch ON / OFF external landscape and facade lighting. e. Compact Fluorescent Lamps (CFL’s) with high frequency ballast shall be used for plant rooms, corridors and BOH areas. f. All fluorescent light fixtures are specified to incorporate electronic chokes which have less watt-loss compared to electro-magnetic chokes and result in superior 99 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN operating power factor. This indirectly saves energy. Electronic chokes also improves life of the fluorescent lamps. g. All fluorescent light fixtures are specified to incorporate high frequency ballast. Due to high frequency ballast florescent tube consume less energy. h. Energy efficient fluorescent lamps & CFL lamps which give approx. 30% more light output for the same watts consumed and therefore require less nos. of fixtures and corresponding lower point wiring costs. i. An APFC relay based on thyristor switching is proposed to effect the power factor correction / improvement within a few cycles of deviation from the setting & also to reduce inrush currents. j. Transformers shall have minimum no load losses as compared to conventional transformers. Plumbing & Fire Fighting a. VFD based hydro pneumatic system. b. Efficient condensate return & recovery system for domestic hot water. c. Pumps & equipment selected on “best” energy efficiency point. 3.10 SOIL ENVIRONMENT The sub-soil is made of Brown Silty Fine to Medium Sand with Brick and stone Pieces occurs upto 2.5 m followed by Gray Very soft to soft clay occurs upto 6.00m followed by, Brown grey fine to medium sand with silt extends upto 10.0 m followed by, brown silty fine to medium sand extends upto 20.5 m followed by, brown fine to medium sand with silt occurs upto 20.5m. 3.11 FIRE PROTECTION MEASURES It is proposed to provide extensive fire protection system for the entire apartments. It is proposed to provide the facility externally in the area and internally 100 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN only in the common areas. The facility is to be terminated at the tapping point on each floor but the total system is being planned compactable to entire building. The following fire protection measures have been adopted in the existing building. a) Separation of living rooms from service facilities such as kitchen, laundry stores etc by fire resistant walls . b) Provision of enclosed pressurized stair cases, corridors assembly points and refuge areas equipped with fire proof doors c) Use of furnishings, partitions lining materials and interior decorations that have low flame spread. d) Installations of fixed and portable fire detection and extinguishing systems, including hydrants hoses sprinklers and other automatic detection and warning systems. e) Provision of emergency lighting and power supply to facilitate safe exit and operation of fireman’s lifts, fire pumps and other emergency appliances. h) Preparation of “Emergency Plan” that would lay down responsibilities assigned to employees during and after an emergency like fire. i) Safe location and installation of fuel storages, transformers, and other electrical equipment, air conditions plant, refuse and waste yards. The various fire risks in the hotel and the measures to be followed are enlisted below 3.11.1 Fire Protection System In addition to fire protection system the portable fire extinguishers of various types are provided in pump room, transformer room, DG room for fighting light hazard fire. All the extinguishers used in the project area will be with BIS mark and are located at an easily accessible position without obstructing the normal passage. 101 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN 3.12 RISK ASSESSMENT, DISASTER MANAGEMENT AND SAFETY MEASURES A well - defined Risk Management Plan is made as follows: STEP 1: Define the Projects/Tasks Site Clearing Excavation Raft RCC slab Block work / plastering External plastering Joinery - frame fixing Flooring Interior works Windows fixing Flooring False ceiling Painting Services I.Electrical II.Plumbing III.Fire fighting Equipments i. Elevator ii. STP /WTP iii. Hard and landscape STEP 2: Identify the Hazards a) Are you using (Tick boxes) [ √ ] plant/equipment [ √ ] scaffolding 102 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN [√]portable electrical equipment [ √ ] ladders [x ] pressure vessels/boilers [√]lifts/hoists/cranes/dogging/rigging/lo [ x ] hazardous substances ad shifting machinery b) Does the project/task involve (Tick boxes) [ √ ] using tools/equipment with [√] working around electrical installations moving part(s) [ √ ] working near traffic [ √ ] using tools/equipment that [ √ ] working at a height (>3m) vibrate [ √ ] working in isolation [ x ] working with x-rays ,or lasers [√] working in a confined space [ √ ] electrical wiring [ √ ] manual handling [ x ] asbestos removal [√] repetitive or awkward movements [ √ ] welding [ x ] lifting or moving awkward or heavy [ x ] hazardous waste objects [ √ ] excavation / trenches (>1.5m) C) Is there (Tick boxes) [ √ ] noise [ √ ] slippery surfaces/trip hazards [√ ] dust/fumes/vapours/gases [ x ] poor ventilation/air quality [ x ] extreme temperatures [ x ] a poorly designed work area for the [ x ] risk of fire/explosion project/task STEP 3: Identify the Hazards Table 18 Risk Assessment during Construction Phase Air Water Noise Soil Occupational Activities Pollution Pollution Pollution Pollution Hazard A. Material Handling: Cement +M - - +M +M 103 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN Steel - - + - +M Sand - - - - - Stone - - - - +L Wood - - - - - Glass - - - - +H Hardware - - - - - Colour - +H - +H - B. Construction Machinery Rotary +L - +H - +H Driller Mixers +M - +M +L +M Excavator +L - +L - +H Material Lift - - +L - +H Risk Factor: + : Positive - : Negative L : Low M : Medium H : High For any projects/tasks that present a high or extreme risk, a Safe Work Method Statement must be completed. STEP 4: Control the Risk Note how you will control the risk following the priorities listed to the right. This may include controls like redesigning the workplace, using guards or barriers, ventilation, using lifting equipment or personal safety equipment. • Eliminate the Hazard • Keep the Hazard and People Apart 104 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN • Change the Work Methods • Use Personal Protection Note any specific risk assessments required for high-risk hazards. Check whether any hazards noted in step 2 require further assessment or action. [ x ] hazardous substance risk [√ ] confined spaces risk assessment assessment [ √ ] sound level test [√] test and tag electrical equipment a) Note Permits/Licenses/Registration required [x ] Demolition work [ x ] Friable asbestos removal [√ ] Electrical wiring [ x ] Ionizing radiation sources [ x ] Pressure vessels [√] registers for chemicals, Personal protective Equipment, training, ladders, lifting gear b) Note certificates of competency/licenses for operators [ √ ] Scaffolding [ √ ] Pesticide application [ √ ] Rigging [ √ ] Crane operation [ √ ] Load shifting machinery operation [ √ ] Hoist operation c) Note emergency systems required [ √ ] first aid kit [ √ ] Fire control [ √ ] extended first aid kit [√] remote communication mechanism [ √ ] emergency stop button [ x ] others [√]additional emergency procedures STEP 5: Actions required to control the Risk A. During construction to reduce pollution: • Manual water sprinkling during dust excavation 105 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN • Using RMC to reduce air pollution • Dust cover for Trucks • New Construction Machinery • Equipment will work intermittently • Rotary drillers instead of acoustic drillers • Vehicular trips will not be at peak traffic hour • Ear Plugs to workers • No noise polluting work in night shifts B .Safety & Hygienic Measures: • Adequate drinking water, toilet and bathing facilities • There will be free medical camps and first aid rooms for workers • Safety equipments like helmets, safety shoes etc. to personnel and visitors • Personnel protective equipments like leather gloves, goggles and ear muffs when required • Personnel working on heights will wear safety equipments and will not work alone. • To prevent any accidents, the entire area under construction will be cordoned off with tin sheets and safety tape is run outside this fence • Regular pest control will be done • Adequate fire fighting equipments will be provided Operational Phase: Risks in the complex will be due to natural calamities like earthquake, flooding and others such as fire and accidental hazards. All precautions will be taken to control these risks. For earthquake resistance, the structural design shall be as per is certified as per IS code 875 and IS- 1893-2002 for Seismic Zone III of Chennai. 3.12.1 First Aid Facilities: 106 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN Construction projects will come under the highly hazard or specific hazard category. Requirement of the first aid provision at work depends on several factors including size of the undertaking, number of employees, hazard arising , access to medical services, workers in isolated locations, etc., Construction phase we have plan to appoint one trained first aider for this proposed development project, and a registered nurse. First Aid Room: Location, Work Space, Work Environment, Signs & Management – the First Aid room easily accessible during working hours and also close to road access. The first aid room should be easily recognizable signs. First Aid Minimum Requirements for this proposed construction project: Furniture & Fittings: Wash basin with hot and cold water supplies, Desk, work bench or dressing trolley, Telephone, Electric power points, Couch with blankets and pillows. Medical Requirements : Examination Table, Examination Lamp, Stretcher Lifting Frame or similar device for transporting patients, First aid kit, Dressing clothes and gloves, soap, disposable towels, trays and bowls. 3.13 DISASTER MANAGEMENT PLAN A disaster or emergency is a threatening condition that requires urgent action. Effective emergency action can avoid the escalation of an event into a disaster. Emergency management involves plans and institutional arrangements to engage and guide the efforts of government, non-government, voluntary and private agencies in comprehensive and coordinated ways to respond to the entire spectrum of emergency needs. The overall objective of an Emergency Response Plan (ERP) is to make use of the combined resources at the site and outside services to achieve the following: 1. To localize the emergency and if possible eliminate it; 107 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN 2. To minimize the effects of the accident on people and property; 3. Make the rescue and medical treatment of casualties more effective; 4. Safeguard other people; 5. Evacuate people to safe areas; 6. Informing and collaborating with statutory authorities; 7. Initially contain and ultimately bring the incident under control; 8. Preserve relevant records and equipment for the subsequent enquiry into the cause and circumstances of the emergency; 9. Investigating and taking steps to prevent reoccurrence. The ERP is therefore related to identification of sources from which hazards can arise and the maximum credible loss scenario that can take place in the concerned area. The plan takes into account the maximum credible loss scenario - actions that can successfully mitigate the effects of losses/ emergency need to be well planned so that they would require less effort and resources to control and terminate emergencies, should the same occur. Main hazards identified for the project include hazards pertaining to fires in buildings and fire in diesel storage areas, earthquake and LPG leakage and an ERP pertaining to these is described in the following section. RESPONSE IN CASE OF FLOOD a. Flood preparedness: 1. Familiarize yourself with local emergency plans. 2. Know where to go and how to get there should you need to get to higher ground, the highest level of building or to evacuate. 3. Make a flood emergency plan for the relevant type of local flood risk with plns such as evacuation, shelter, locations for high ground. 4. Build or restock your emergency preparedness kit, including a minimum of 3 days of food and water, flashlight, batteries, cash and first aid supplies. 5. Consider buying flood insurance. 108 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN 6. Stay tuned to your phone alerts, TV, Radio for weather updates, emergency instructions or evacuation orders. b. Response procedures for Occupants: 1. If advised to evacuate home, do immediately 2. If there is possibility of flash flood, move immediately to higher ground. 3. Bring outdoor furniture and move essential items to an upper floor 4. Turn off utilities at the main switches or valves. 5. Disconnect all electrical appliances RESPONSE IN CASE OF EARTHQUAKE a. Earthquake Preparedness 1. Know how and where to take cover during a quake 2. Anchor furniture over 42”. Do not stack furniture 3. Move tall bookcases away from exits. Do not use them as room dividers 4. Anchor computers, equipment, and display cases 5. Store heavy items at floor level 6. Back up critical data. Keep duplicates off-site b. Response Procedures for Occupants If indoors: 1. Take cover under a piece of heavy furniture or against an inside wall and hold on. 2. Stay inside: The most dangerous thing to do during the shaking of an earthquake is to try to leave the building because objects can fall on you. If outdoors: Move into the open, away from buildings, streetlights, and utility wires. Once in the open, stay there until the shaking stops. If in a moving vehicle: 109 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN Stop quickly and stay in the vehicle. Move to a clear area away from buildings, trees, overpasses, or utility wires. Once the shaking has stopped, proceed with caution. Avoid bridges or ramps that might have been damaged by the quake. 1. After the earthquake be prepared for aftershocks. 2. Although smaller than the main shock, aftershocks cause additional damage and may bring weakened structures down. 3. Aftershocks can occur in the first hours, days, weeks, or even months after the quake. 4. Help injured or trapped persons. 5. Give first aid where appropriate. Do not move seriously injured persons unless they are in immediate danger of further injury. Call for help. 6. Remember to help those who may require special assistance--infants, the elderly, and people with disabilities. 7. Stay out of damaged buildings. 8. Use the telephone only for emergency calls. c. Response Procedure for Emergency Team 1. Formulate an Emergency Response Team for earthquake response. 2. Using the public address system, inform people of response procedures discussed above. 3. Inform the necessary authorities for aid. 4. Ensure no person is stuck beneath any debris, in case of a structural failure. 5. Ensure that all occupants standing outside near the buildings are taken to open areas. 6. Ensure that the first aid ambulance and fire tender vehicles are summoned if necessary. 7. Inform the nearby hospitals if there are any injuries. 8. Check the utilities and storage tanks for any damage. 110 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN RESPONSE IN CASE OF FIRE a. Fire Preparedness 1. Note the location of alarms and extinguishers. Know how to use them 2. Leave fire doors closed at all times 3. Clear obstructed corridors, aisles and room exits 4. Limit use of extension cords and multiple outlets 5. Do not use mechanical rooms or utility rooms for storage b. Response Procedures for Occupants 1. Required response during in the event of a fire should be described in signs located in the lobby. 2. On sighting a fire, it should be immediately informed to the environment manager giving the exact location and type of fire in detail. 3. Initiate the Emergency Response Team for fires. 4. If the fire is small, engage in extinguishing the fire using the nearest fire extinguisher. 5. Guide the Emergency Response Team staff to the emergency assembly point. 6. The Emergency Response Team should immediately inform the nearest dispensary and security force. If required a fire tender should be summoned. 7. The response team should immediately move to the point of fire and take all necessary steps to stop the fire. If the fire is not controllable and spreads then the manager in charge should inform the district authorities and call for external help. 8. The Emergency Response Team will provide immediate relief to the injured at the scene of incident. Any injured persons should be evacuated on priority to the dispensary or one of the nearest hospitals based on their condition. c. Instructions for occupants 1. Get out of buildings as quickly and as safely as possible. 2. Use the stairs to escape. When evacuating, stay low to the ground. 3. If possible, cover mouth with a cloth to avoid inhaling smoke and gases. 111 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN 4. Close doors in each room after escaping to delay the spread of the fire. 5. If in a room with a closed door. 6. If smoke is pouring in around the bottom of the door or if it feels hot, keep the door closed. 7. Open a window to escape or for fresh air while awaiting rescue. 8. If there is no smoke at the bottom or top and the door is not hot, then open the door slowly. 9. If there is too much smoke or fire in the hall, slam the door shut. 10. Stay out of damaged buildings. 11. Check that all wiring and utilities are safe. A state of the art fire fighting system is proposed for the project to prevent and control fire outbreaks. The fire fighting system will consist of portable fire extinguishers, hose reel, wet riser, yard hydrant, automatic sprinkler system, and manual fire alarm system. The buildings will also be provided with automatic fire detection and alarm system. 3.14 ENVIRONMENT MONITORING PLAN FOR CONSTRUCTION AND OPERATION PHASE Environmental monitoring plan is a vital process of any management plan of the development project. This helps in signaling the potential problems that resulting from the proposed project and will allow for prompt implementation of effective corrective measures. The environmental monitoring will be required for the construction and operational phases. The main objectives of environmental monitoring area: To assess the changes in environmental conditions, To monitor the effective implementation of mitigation measures, Warn significant deteriorations in environmental quality for further prevention action. The emissions from each of the diesel generator shall be monitored for exit concentration of Sulphur dioxide, Oxides of Nitrogen and Particulate Matter on regular 112 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN intervals. The frequency of monitoring shall be decided in consultation with the TNPCB. Sampling ports in the stacks/vents shall be provided in accordance with CPCB guidelines. Table 19 : Environmental Monitoring Plan S. No. Description Frequency of Sampling and Analysis Construction Phase 1. Ambient Air Quality Once in six month – 24 hourly 2. Stack Emissions from DG set Once in six month 3. Ambient Noise Level Once in six month 4. Soil Quality Once in six month 5. Ground Water Once in six month Operation Phase 1. Ambient Air Quality Once in six month – 24 hourly 2. Stack Emissions from DG Set Once in six month 3. Ambient Noise Level Once in six month 4. Treated Sewage Once in a week 5. Ground Water Once in six months The implementation of the pollution control and environmental monitoring and management programme is the basis of mitigation of impacts. The environmental expenditures show commitment of the management on environmental front 113 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN Table 20: Budgetary allocation for environmental management during Construction phase Description Budgetary Allocation (Rs. In Lakhs) Capital Expenses Operational Expenses Drinking Water & Sanitation 1.0 1.5 (Temporary Toilet) Facilities Storm Water Management 0.5 2.5 Solid Waste/Debris 0. 6 3.5 Management Environmental Monitoring 0 4 Dust Suppression Measures 2.0 3 Occupational Health & Safety 1.5 4 Total 6.0 7.5 Table 21: Budgetary allocation for environmental management during Operation phase Description Budgetary Allocation (Rs. In Lakhs) Capital Operational/ 114 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN Expenses Maintenance Expenses (Per Annum) Sewage Treatment Plant & Recycling 90 System Labour 3.6 Power 1.8 Consumables 1.8 (chlorine, oil & Grease) Fresh water supply - 20 Rain Water Harvesting System 15 3 Solid Waste Management 4 Collection and segregation manpower 3.36 Composting power 3.36 Environmental Monitoring - 4 Energy Conservation 15 4 115 ETL/EAQM/JUNE 2019/01 M/s. LIFESTYLE HOUSING AND INFRASTRUCTURE CONCEPTUAL PLAN Green area Development 15 Sweeper 1.8 Gardner 1.8 Manure 1 Excess treated water disposal - 20 Total 129 49.52 ********* 116 ETL/EAQM/JUNE 2019/01