ENVIRONMENT IMPACT ASSESSMENT REPORT
FOR REDEVELOPMENT OF STAFF COLONY AT MODEL TOWN, NEW DELHI DEVELOPED BY NORTH DELHI MUNICIPAL CORPORATION [NDMC]
FILE NO. - IA/DL/NCP/99423/2019, PROPOSAL NO-. 21-24/2019-IA-III MONITORING PERIOD 01st March 2019 – 31st May 2019 PLOT AREA & BUILT UP AREA 9.51 Hectare; 5, 81, 685.54 m2 ENVIRONMENT CONSULTANT & ACCREDITATION
AMALTAS ENVIRO INDUSTRIAL CONSULTANTS LLP (AEC); (Certificate no.-NABET/EIA/1518/IA 0017) LABORATORY CONSULTANT & ACCREDITATION
J.P TEST & RESEARCH CENTRE NABL Accredited Laboratory (Certificate No. - Chemical: T 4181 & Biological: T 4182)
Table of Contents Chapter-1. Introduction ...... 5 1.0 Purpose Of The Report ...... 5 1.1 Project Proponent/Developer ...... 6 1.2 Project Background And Environment Consultant Engaged ...... 6 1.3 General Information ...... 7 1.4 Objective ...... 9 1.5 Scope of Work ...... 10 1.6 Structure of Report ...... 11 1.7 Compliance of Term of References ...... 12 Chapter-2. Project Description ...... 13 2.0. General ...... 13 2.1. Brief about Project Proponent ...... 13 2.2. Brief about Project ...... 13 2.3. Site Surroundings and Connectivity ...... 13 2.4. Salient features of the site ...... 15 2.5. Area Details ...... 16 2.6. Population Details ...... 17 2.7. Water Environment ...... 18 2.8. Rainwater Harvesting and Storm Water Drain ...... 26 2.9. Parking Details ...... 28 2.10. Power Requirement ...... 29 2.11. Earthing system ...... 30 2.12. Fire Fighting system ...... 30 2.13. Solid Waste Details ...... 31 2.14. Landscape Details ...... 38 Chapter-3. Description of Baseline Environment ...... 39 3.1. Methodology ...... 39 3.2. Land Environment ...... 40 3.3. Meteorology ...... 42 3.4. Air Environment ...... 46 3.5. Noise Environment ...... 65 3.6. Water Environment ...... 68 3.7. Soil quality ...... 75 3.8. Biological Environment ...... 79 3.9. Socio-Economic Study ...... 91 Chapter-4. Impact Analysis and Mitigation Measures ...... 94
1 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
4.1. Impact Appraisal Criteria ...... 94 4.2. Impact during Construction Phase ...... 114 4.3. Impact during Operation Phase ...... 126 Chapter-5. Analysis of Alternatives (Technology and Site) ...... 134 5.1 Introduction ...... 134 5.2 Building Material ...... 134 5.3 Alternatives considered for Selection of site ...... 137 Chapter-6. Environmental Monitoring Programme ...... 138 6.1. Introduction ...... 138 6.2. Objectives of Environmental Monitoring ...... 138 6.3. Purposed Schedule ...... 138 6.4. Environmental Policy ...... 140 Chapter-7. Additional studies (Disaster Management Plan) ...... 142 7.1. Purpose and Objective ...... 142 7.2. Identified Emergency Situations ...... 143 7.3. Specific Emergency Response Procedure ...... 147 7.1. Resettlement and Rehabilitation ...... 148 Chapter-8. Project Benefits ...... 149 Chapter-9. Environmental Management Plan and Environmental Monitoring Program ...... 150 9.1. Organization Structure for Implementation of EMP ...... 150 9.2. Environmental Monitoring Plan ...... 152 9.3. Awareness and Training ...... 157 9.4. Record Keeping and Reporting ...... 157 9.5. Proposed environment Management Plan ...... 158 9.6. EMP Budget ...... 170 Chapter-10. Summary and Conclusions ...... 171 Chapter-11. Disclosure of Consultants ...... 172 10.1. Introduction of Consultant ...... 172 10.2. Disclosure of Consultant Engaged ...... 172 10.3. Accreditation from Quality Council of India, QCI ...... 172 10.4. J.P. Test & Research Centre ...... 173
TABLE 1-1 : ENVIRONMENTAL ATTRIBUTES AND FREQUENCY OF MONITORING ...... 10 TABLE 2-1 GEO-GRAPHICAL CO-ORDINATES OF THE SITE ...... 13 TABLE 2-2 SITE SURROUNDINGS AND CONNECTIVITY ...... 14 TABLE 2-4 AREA DETAILS OF THE SITE ...... 16 TABLE 2-5 POPULATION DETAILS FOR PROPOSED BUILDING ...... 17 TABLE 2-6-CALCULATION FOR DAILY WATER DEMAND ...... 18 TABLE 2-7 WASTEWATER GENERATION DETAILS...... 19
2 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
TABLE 2-8 DESIGN PARAMETERS FOR SEWAGE COLLECTION SYSTEM ...... 23 TABLE 2-9 WASTEWATER DETAILS ...... 23 TABLE 2-10-CALCULATION FOR STROM WATER LOAD FOR THE PROPOSED SITE ...... 27 TABLE 2-11 ECS REQUIRED ...... 28 TABLE 2-12: PARKING PROPOSED ...... 29 TABLE 2-13-ELECTRICAL LOAD DETAILS ...... 29 TABLE 2-14: CALCULATION OF SOLID WASTE GENERATION OF PROPOSED BUILDING ...... 33 TABLE 2-15-OPTIMUM CONDITION FOR COMPOSTING ...... 36 TABLE 2-16-CHARACTERSTIC OF FINAL COMPOST ...... 36 TABLE 2-17 LANDSCAPE AREA DETAILS ...... 38 TABLE 3-1 CLIMATOLOGICALLY SUMMARY (OBTAINED FROM NEAREST IMD MET STATION AT SFD (2005-2010) ...... 43 TABLE 3-2 ANNUAL RAINFALL (MM) AT THE NEAREST IMD MET STATION ...... 43 TABLE 3-3 WIND SPEED AND DIRECTION ...... 44 TABLE 3-4 DETAILS OF MONITORING PROGRAMME FOR AMBIENT AIR QUALITY ...... 48 TABLE 3-5 BRIEF SUMMARY OF THE METHODOLOGY FOLLOWED FOR ANALYSIS OF AMBIENT AIR QUALITY ...... 48 TABLE 3-6 AMBIENT AIR QUALITY IN THE STUDY AREA (MARCH- MAY 2019) ...... 63 TABLE 3-7 NOISE QUALITY MONITORING STATION ...... 65 TABLE 3-8- AMBIENT QUALITY STANDARDS IN RESPECT OF NOISE ...... 66 TABLE 3-9 NOISE STANDERS FOR VEHICLES ...... 67 TABLE 3-10 OBSERVATION OF NOISE MONITORING LOCATION ...... 67 TABLE 3-11SURFACE WATER AND GROUNDWATER MONITORING STATIONS ...... 70 TABLE 3-12 MONITORING PROGRAMME FOR SURFACE WATER ...... 71 TABLE 3-13: MONITORING PROGRAMME FOR GROUND WATER ...... 72 TABLE 3-14 WATER QUALITY ANALYSIS- SURFACE WATER MONITORING (MARCH- MAY 2019) ...... 72 TABLE 3-15 WATER QUALITY CRITERIA AS PER CENTRAL POLLUTION CONTROL BOARD ...... 73 TABLE 3-16 GROUNDWATER ANALYSIS ...... 73 TABLE 3-17 DETAILS OF PROPOSED SOIL SAMPLING LOCATIONS ...... 75 TABLE 3-18: DETAILS OF MONITORING PROGRAM FOR SOIL QUALITY ...... 76 TABLE 3-19-METHODS FOR SOIL ANALYSIS ...... 77 TABLE 3-20-RESULT OF SOIL QUALITY ANALYSIS (MARCH- MAY 2019) ...... 77 TABLE 3-21: STANDARD SOIL CLASSIFICATION ...... 78 TABLE 3-22 FLORA IN CORE AREA ...... 82 TABLE 3-23- RESIDENTIAL AVIFAUNA OF THE STUDY AREA ...... 84 TABLE 3-24 MAMMALS OF THE STUDY AREA ...... 88 TABLE 3-25 REPTILES ASSOCIATED WITH STUDY AREA ...... 89 TABLE 4-1 IMPACT APPRAISAL CRITERIA ...... 94 TABLE 4-2 IMPACT SIGNIFICANCE CRITERIA ...... 96 TABLE 4-3 IMPACT IDENTIFICATION MATRIX FOR THE REDEVELOPMENT OF PROPOSED SITE ...... 112 TABLE 4-4 IMPACT SIGNIFICANCE -LAND ENVIRONMENT ...... 115 TABLE 4-5 IMPACT SIGNIFICANCE- AMBIENT AIR QUALITY ...... 117 TABLE 4-6 IMPACT SIGNIFICANCE- AMBIENT NOISE QUALITY ...... 118 TABLE 4-7 IMPACT SIGNIFICANCE WATER RESOURCES ...... 119 TABLE 4-8 IMPACT SIGNIFICANCE-ECOLOGY ...... 121 TABLE 4-9 QUANTIFICATION OF DIFFERENT CONSTRUCTION WASTE GENERATED ...... 121 TABLE 4-10 IMPACT SIGNIFICANCE-SOIL RESOURCE ...... 123 TABLE 4-11 IMPACT SIGNIFICANCE- TRAFFIC AND TRANSPORTATION ...... 124 TABLE 4-12 IMPACT SIGNIFICANCE-OCCUPATIONAL HEALTH & SAFETY ...... 126 TABLE 4-13 IMPACT SIGNIFICANCE-LAND ENVIRONMENT...... 127 TABLE 4-14 IMPACT SIGNIFICANCE -AMBIENT AIR QUALITY ...... 128 TABLE 4-15 IMPACT SIGNIFICANCE -AMBIENT NOISE QUALITY ...... 129 TABLE 4-16 IMPACT SIGNIFICANCE –WATER RESOURCE AND QUALITY ...... 131 TABLE 4-17 IMPACT SIGNIFICANCE –SOLID WASTE MANAGEMENT ...... 131 TABLE 4-18 IMPACT SIGNIFICANCE –TRAFFIC ...... 133 TABLE 4-19 IMPACT SIGNIFICANCE –SOCIO-ECONOMIC ENVIRONMENT ...... 133 TABLE 5-1 QUANTITY AND SOURCE OF CONSTRUCTION MATERIAL ...... 134 TABLE 6-1 : ENVIRONMENT MONITORING PLAN- CONSTRUCTION PHASE ...... 138
3 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
TABLE 6-2 : ENVIRONMENT MONITORING PLAN- OPERATIONAL STAGE ...... 139 TABLE 9-1 NATIONAL AMBIENT AIR QUALITY STANDARD ...... 153 TABLE 9-2- PRIMARY WATER QUALITY CRITERIA FOR DESIGNATED BEST USE CLASS ...... 154 TABLE 9-3 TREATED SEWAGE DISCHARGE GUIDELINES ...... 154 TABLE 9-4AMBIENT NOISE STANDARDS ...... 155 TABLE 9-5-STANDARD FOR OCCUPATIONAL NOISE EXPOSURE ...... 155 TABLE 9-6MONITORING SCHEDULE FOR DIFFERENT ENVIRONMENTAL PARAMETERS ...... 156 TABLE 9-7- RECORD KEEPING REQUIREMENT ...... 157 TABLE 9-8 ENVIRONMENT MANAGEMENT PLAN-CONSTRUCTION PHASE ...... 159 TABLE 9-9 ENVIRONMENT MANAGEMENT PLAN- OPERATION PHASE ...... 163 TABLE 9-10-EMP BUDGET...... 170
FIGURE 1-1 SITE SURROUNDINGS WITHIN 5 KM ...... 7 FIGURE 1-2 - EXISTING SITE PHOTOGRAPHS ...... 9 FIGURE 2-1 SITE LOCATION WITH GEO COORDINATES ...... 14 FIGURE 2-2 SITE SURROUNDINGS AND SENSITIVITY WITHIN 10+15 KM ...... 15 FIGURE 2-4 WATER BALANCE DIAGRAM DURING NON-MONSOON SEASON ...... 21 FIGURE 2-3 WATER BALANCE DIAGRAM DURING RAINY SEASON ...... 21 FIGURE 2-5 WATER BALANCE DIAGRAM DURING RAINY SEASON ...... 22 FIGURE 2-6 STP TECHNOLOGY PROPOSED ...... 25 FIGURE 2-7 RAINWATER STORAGE STRUCTURE ...... 28 FIGURE 2-8- TYPICAL COMPOSITION OF C& D WASTE ...... 32 FIGURE 2-9 SOLID WASTE MANAGEMENT FOR CONSTRUCTION PHASE ...... 33 FIGURE 2-10: SOLID WASTE MANAGEMENT SCHEME -DOMESTIC WASTE ...... 35 FIGURE 2-11-ORGANIC WASTE CONVERTOR ...... 37 FIGURE 3-1 SEISMIC ZONATION AND INTENSITY MAP OF INDIA SHOWING PROJECT SITE ...... 41 FIGURE 3-2 FIRST LEVEL SEISMIC HAZARD MICRO ZONATION MAP OF NCT, DELHI ...... 42 FIGURE 3-3 SEASONAL WIND ROSE DIAGRAM ...... 45 FIGURE 3-4 WIND ROSE DIAGRAM DURING MONITORING PERIOD [MARCH- MAY 2019] ...... 46 FIGURE 3-5 AMBIENT AIR QUALITY MONITORING STATIONS ...... 63 FIGURE 3-6 NOISE QUALITY MONITORING STATION ...... 66 FIGURE 3-7 DEPTH OF GROUND WATER LEVEL-NCT DELHI ...... 69 FIGURE 3-8 DECADAL FLUCTUATION IN GROUNDWATER LEVEL-NCT DELHI ...... 69 FIGURE 3-9 SURFACE WATER AND GROUND WATER MONITORING LOCATIONS ...... 71 FIGURE 3-10 SOIL QUALITY MONITORING LOCATIONS ...... 76 FIGURE 3-11 SOIL TEXTURE OF STUDY AREA ...... 79 FIGURE 9-1- ORGANIZATION STRUCTURE: ...... 151 FIGURE 11-1 : ACCREDITATION FROM QUALITY COUNCIL OF INDIA, QCI ...... 173 FIGURE 11-2- NABL CERTIFICATE ...... 174
4 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Chapter-1. INTRODUCTION 1.0 PURPOSE OF THE REPORT Every anthropogenic activity has some impact on the environment. More often it is harmful to the environment than benign. Mankind cannot live idle without taking up activities for their food, security and other needs. Consequently, there is a need to harmonies developmental activities with the environmental concerns. It is desirable to ensure that the development options under consideration are sustainable. In doing so, environmental consequences must be characterized early in the project cycle and accounted in the project.
Redevelopment shall be done over an area of approx. 23.51 Acres. Currently site is having 2 storey 512 dwelling units which shall be demolished before construction starts at site. The existing buildings were constructed and also became operational prior to the publication of EIA Notification 2006. Therefore, the existing buildings did not attract applicability of to obtain Environmental Clearance from SEIAA/MoEF&CC and no environmental clearance was issued, However as of now, built up area of the project shall be 5, 81, 685.54 m2 which comes under schedule 8 (b), and attracts the EIA applicability.
As per the EIA notification dated 14th September 2006; Environmental Clearance for new/expansion/modernization of Building and Construction project 8 (a) as well as township and area development project 8 (b) is to be sought from the Expert Appraisal Committee/State Level Environmental Impact Assessment Authority/State Expert Appraisal Committee. However due to absence of SEIAA/SEAC in Delhi at the moment, the EIA report is herewith submitted
Project or Activity Category with threshold limit Conditions, If any (A) (B) 1 2 3 4 5 8 Building /Construction projects/Area Development projects and Townships 8(a) Building and >20000 sq. mtrs and<1, 50,000sq. #(built up area for covered Construction projects Mtrs. of built-up area# construction; in the case of 8(b) Townships and Area Covering an area > 50ha and or facilities open to the sky, it Development built up area>1,50,000 sq. mtrs ++ will be the activity area) projects. ++All projects under Item 8(b) shall be appraised as Category B1 *Source: MoEF&CC Gazette Notification, GoI, dated 22.12.2014&MoEF&CC Gazette Notification, GoI, dated 14th September, 2006. Note 1. The projects or activities shall not include industrial shed, School, college, hostel for educational institutions, but such buildings shall ensure sustainable environmental management, solid and liquid and implement environmental conditions given at Appendix-XIV.
5 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Note 2 - General Condition shall not apply. Note 3-The exemptions granted at Note 1 will be available only for industrial shed after integration of environmental norms with building permissions at the level of local authority. Therefore, as per the EIA notification, proposed redevelopment comes under schedule 8(b) redevelopment of Staff Colony at Model Town, Delhi having total built up area 5, 81, 685.54 m2 1.1 PROJECT PROPONENT/DEVELOPER The redevelopment shall be done by North Delhi Municipal Corporation (NDMC). NDMC is one of the municipal corporations in Delhi, created after the former Municipal Corporation of Delhi was divided into three ("trifurcation"). Redevelopment of staff colony at Model Town shall be headed under the leadership of Architecture Department, NDMC. Architecture Department is the backbone of Engineering activities as it provides designs for various projects of Municipal Corporation Buildings based on which estimates are prepared and work taken up for execution for all civil project in North Delhi Municipal Corporation such as Schools, Hospitals, Community Buildings, Zonal office, Stadiums, Swimming pools, Parks, Landscaping, Street-scaping, Redevelopment projects, Facade control drawings/ Standard design of commercial spaces and office building etc. The existing flats including community/social facilities will be demolished and new set of flats, commercial and social facilities will be developed as per the norms of redevelopment projects, Executive agency details as follow. Project Developer: North Delhi Municipal Corporation Authorised Person: Sh. B. N. Perai Designation: Assistant Commissioner Address: North Delhi Municipal Corporation Office of Addl. Deputy Commissioner (L&E) 13th floor, Dr. SPM Civic Centre JLN Marg, Minto Road. New Delhi-100002 http://mcdonline.gov.in/tri/ndmc_mcdportal
1.2 PROJECT BACKGROUND AND ENVIRONMENT CONSULTANT ENGAGED Model Town comes under NDMC administration, having and NDMC is planning for redevelopment of existing staff colonies in Model Town as they were built a long time ago and are in crumbling condition now. Also NDMC want to increase the number of flats by taking the advantage of redevelopment norms. Redevelopment shall be done over an area of approx. 23.51 Acres. Currently site is having 2 storey 512 Dwelling units which shall be demolished before construction at site, However the proposed built area is 5, 81, 685.54 m2.
6 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
This project is independent and does not link with any other project/s which attracts directly or indirectly any provisions of schedule of EIA notification 2006 amended to date. The project falls under Category B1; Schedule (8b) according to EIA Notification, 2006 and amended till date. Amaltas Enviro Industrial Consultants LLP (AEC), is consultant for this project for conducting EIA studies. AEC is QCI/NABET accredited environment consultant. Baseline data collection and analysis has been conducted be external NABL and MoEF&CC accredited laboratory JP test & Research Centre, Noida The Application for obtaining the Terms of Reference was submitted to EAC on 15th March 2019 as proposal no. IA/DL/NCP/99423/2019 while the Terms of Reference was granted in 41st EAC meeting held on 27-29 May 2019.
1.3 GENERAL INFORMATION This is the redevelopment of Staff Colony at Model Town having total site area of 9.51 hectare. Site is well connected to transport facilities as well as surrounded by densely populated areas. Site surroundings within 5 km are shown in figure- 1-2, however existing site photos are shown in figure 1-3 Existing Site Features: Site is located on Arihant Marg near Majlis Park Metro station. It has green buffer on the North, Queen Mary and Srijan School on the East, Arihant Marg on the West side and Rajeshwar colony on the South.
Figure 1-1 Site surroundings within 5 km
7 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
8 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Figure 1-2 - Existing site photographs Photos showing existing condition6 of the residential quarters, surroundings of residences.
1.4 OBJECTIVE The main objective of this EIA study was to identify the impacts due to the construction and operation of the proposed project and propose suitable mitigation measures, wherever required. The objectives pursued were as listed below:
Establishment of baseline environmental and social scenario of the project and its surroundings; Identification, prediction and evaluation of the environmental and social impacts likely to arise during the construction and operation phase of the project Analysis of alternatives with respect to site location and project components Recommendation of mitigation measures so as to minimize pollution, environmental disturbance and nuisance during construction and operation of the proposed project. Formulation of Environmental Management Plan (EMP) for various environmental parameters. Designing and specifying the monitoring requirements necessary to ensure the effective and sustainable implementation.
9 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
1.5 SCOPE OF WORK To assess the environmental attributes of the study area, core area of 5 km radius around the proposed project site has been considered. The broad scope of the study includes: Desktop study/ literature review to collect data relevant to the study area; Analysis of Alternatives Primary data collection supplemented with secondary data collection so as to establish the baseline environmental status of the study area; Identify various existing pollution loads due to project activities in the study area; Evaluate the predicted impacts on the various environmental attributes in the study area Identify mitigation measures and prepare a n Environmental Management Plan (EMP) outlining the measures for improving environmental quality and scope for future expansions for environmentally sustainable development; Identify critical environmental attributes required to be monitored regularly. During preparation of EIA report of the project all the parameters mentioned in the table below have been taken into consideration. Study area for the project has been taken as 5 km. As for baseline, data has been collected during March 2019 to May 2019 as per the monitoring period approved by MoEF&CC to determine the existing conditions of various environmental attributes and are outlined in Table 1.2. Table 1-1 : Environmental attributes and frequency of monitoring
S. No. Attributes Parameters Frequency/ Methodology
1. Ambient Air PM10, PM2.5, SO2, NOX, CO As per CPCB guidelines at 05 Quality locations 2. Meteorology Wind speed and direction, At Site, continuous for study period temperature, relative with hourly recording and from humidity, rainfall and cloud secondary sources like IMD station at cover Wazirpur, Delhi. 3. Water quality Physical, Chemical and Ground water samples were collected Bacteriological parameters at 3 locations and surface water samples were collected at 3 locations during the study period. 4. Ecology Existing terrestrial and aquatic Primary data collection involving flora and fauna within 10km inventory, site observation and radius circle scheduling and secondary data from govt. department and publications.
10 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
5. Noise levels Noise levels in dB(A) Noise quality monitored at 05 locations 6. Soil Physico-chemical soil quality Soil quality monitored at 3 locations Characteristics 7. Land use Land use classification for Based on Survey of India Topo-sheet different categories and Satellite imagery, ground truth collection using GPS. Sophisticated software has been used. 8. Socio economic Demographic and Working On the basis of Field survey and Pattern Status primary consultation secondary data from govt departments. 9. Drainage Pattern Pattern and nature of streams Site survey &Based on data collected & Hydrology from secondary sources like Survey of India Maps, Hydrology Atlas of India, CGWB etc. 10. Risk assessment Identification of areas where Site specific Hazard Identification and and Disaster disaster can occur by fires and Risk assessment will be done initially Management Plan release of toxic substances (As and when there is change in stored quantity of hazardous materials or process at site) Source: (i) Guidelines of Central Pollution Control Board, New Delhi, and (ii) Model Terms of Reference (iii) Survey of India (iv) Census of India (v) CGWB (vi) Field Survey (vi) Delhi Jal Board 1.6 STRUCTURE OF REPORT The overall contents of the EIA report has been prepared as per the generic structure prescribed in the Annexure III of EIA Notification issued by Ministry of Environment & Forests, Govt. of India on 14th September 2006 and subsequent amendments. The report consists of eleven chapters. The content of the chapters is briefly described in this section.
Chapter-1 Introduction - The present chapter gives basic information about the project proponent along with project background. It also discusses purpose and scope of the EIA study. Chapter-2 Project Description- This chapter provides information related to various features of the proposed project incorporating land, water and power requirements, parking needs other proposed infrastructure facilities Chapter-3 Description of Baseline Environment- The various parameters of present environmental status are identified under different aspects, which include location and regional setting of the area, topographical aspect including land use, land cover and soil quality of the study area. Drainage aspect
11 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC consists of surface and groundwater quality. Meteorological aspect contains all the climatic factors and ambient air quality of the study area. Ecological environment describes the flora and fauna of the region. Human aspect includes the demographical features, socio-economic environment and infrastructure facilities of the study area. Chapter-4 Impact analysis and mitigation measures - This chapter provides impact on environment due to the project during construction and operation stages. It ascertains the impacts of the proposed project on the various components of environment. The mathematical modeling exercises pertaining to ground level concentrations of air pollutants have been presented in this chapter with suitable mitigation measures. Chapter-5 Analysis of alternatives (Technology and site) - This chapter describes systematic comparisons of feasible alternatives for the technology alternatives. Alternatives have been compared in terms of their potential environmental and social impacts, capital and recurrent costs, suitability under local conditions and monitoring requirements. Chapter-6 Environment Monitoring Plan - The monitoring of environmental parameters in construction as well as operation phase of the project for assessing the impact. Chapter-7 Additional Studies - The chapter provides detail about Risk associated with the project along with Disaster Management Plan. Chapter also describes the firefighting provision for the project. Emergency Preparedness plan is also included in this chapter. Chapter-8 Project Benefits- The benefits that will be accrued from the project in the locality in particular and society in general as well as development are identified and described in this chapter. Chapter-9 Environment Management Plan- This chapter deals with the management plan incorporating recommendations to mitigate the adverse impact likely to occur on environmental parameters due to establishment of the project and the organization structure, which will be responsible for environment monitoring have been detailed in this chapter. Chapter-10 Summary and Conclusions- The chapter deals with the conclusion of all the studies and analysis and its summary. Chapter 11 Disclosure of Consultants- This chapter includes the name of the consultant engaged with their brief resume and the names of the technical team involved in the report preparation and nature of consultancy rendered
1.7 COMPLIANCE OF TERM OF REFERENCES
The Terms of Reference was granted in 41st EAC meeting held on 27-29th May 2019. The point compliance to the Terms of Reference is attached as annexure-1
12 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Chapter-2. PROJECT DESCRIPTION 2.0. GENERAL This chapter provides details of the project including site location and settings in the surroundings, connectivity, project components and their development strategies
2.1. BRIEF ABOUT PROJECT PROPONENT North Delhi Municipal Corporation (NDMC) is one of the municipal corporations in Delhi, India created after the former Municipal Corporation of Delhi was divided into three ("trifurcation"). Also, it is one of five local bodies in the National Capital Territory of Delhi, the others being East Delhi Municipal Corporation, South Delhi Municipal Corporation, New Delhi Municipal Council and Delhi Cantonment Board. Redevelopment of staff colony at Model Town shall be headed under the leadership of Architecture Department, NDMC. Architecture Department is the backbone of Engineering activities as it provides designs for various projects of Municipal Corporation Buildings based on which estimates are prepared and work taken up for execution for all civil project in North Delhi Municipal Corporation such as Schools, Hospitals, Community Buildings, Zonal office, Stadiums, Swimming pools, Parks, Landscaping, Street-scaping, Redevelopment projects, Facade control drawings/ Standard design of commercial spaces and office building etc.
2.2. BRIEF ABOUT PROJECT Model Town comes under NDMC administration, and NDMC is planning for redevelopment of existing staff colonies in Model Town as they were built a long time ago and are in crumbling condition now. Also NDMC want to increase the number of flats by taking the advantage of redevelopment norms Redevelopment shall be done over an area of approx. 23.51 Acres. Currently site is having 2 storey 512 Dwelling units which shall be demolished before construction at site.
2.3. SITE SURROUNDINGS AND CONNECTIVITY LOCATION Site is located on Arihant Marg near Majlis Park Metro station. It has green buffer on the North, Queen Mary and Srijan School on the East, Arihant Marg on the West side and Rajeshwar colony on the South. Geographical co-ordinates of the site are given in table Table 2-1 Geo-graphical co-ordinates of the site
S. No. Details Latitude Longitude 1. Corner-A 28°42'59.94"N 77°10’55.00"E 2. Corner-B 28°42'50.18"N 77°10'50.65"E 3. Corner-C 28°42'44.56"N 77°10'56.55"E 4. Corner-D 28°42'455.81"N 77°11’03.66"E
13 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
5. Centre of the site 28°42'52.63"N 77°10'56.96"E
Figure 2-1 Site location with geo coordinates
Model Town is surrounded by important areas like Jahangir Puri, Gopal nagar, Rameshwar Nagar, Transport centre, Kewal Park, Indar Nagar etc. Site surroundings and site connectivity within 15 km are shown in below table Table 2-2 Site Surroundings and Connectivity
S.No. Particulars Name Distance and Direction 1. Nearest Railway Azadpur Metro Station Approx. 0.6 km, SSW Station Majlis Park Metro Station Approx. 0.8 km, N Model Town Metro Station Approx. 1.5 km, SSE New Delhi Railway Station Approx. 8.5 km, SE 2. Nearest Airport IGI Airport Approx. 19 km, SSW Safdurjung Airport Approx. 14 km, S 3. Nearest Populated Area Phase-3 Approx. 0.35 km, SW Kewal Park Approx. 0.3 km, W Inder Nagar Approx. 0.5 km, W Rishabh Park Approx. 0.2 km, E Rameshwar Nagar Approx. 0.1 km, S
14 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
4. State Boundary Delhi- UP Border Approx. 10 km, E Delhi-HR Border Approx. 15km, N 5. Nearest Road Shahid Ram Prasad Bismil Adjacent, E,S & SW Marg Arihant Marg Adjacent, W 6. Nearest School Queen Marry School Adjacent, E The Srijan School Adjacent, E GD Goenka Public School Approx. 0.25 km, E Model Town 7. Nearest Hospital Dr. Lal PathLabs Approx. 065 km, S Uday ENT Hospital Approx. 1.38 km, S 8. Place of Worship Arya Samaj Mandir Approx. 0.35 km, E Gurudwara Sri Guru Singh Approx. 0.6 km, SE Sabha, D Block 9. Water Bodies Naini lake Approx. 1.3 km, E Yamuna River Approx. 5.02 km, E 10. Forest Central Ridge Forest Approx. 10km S (Source: Google Earth Pro)
Figure 2-2 site surroundings and sensitivity within 10+15 km
2.4. SALIENT FEATURES OF THE SITE The salient features of the project are as follow.
15 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
This is re development of existing residential staff colony to residential cum commercial facility for Govt employees. Total area of the site is of 95,155 m2 (9.5 Hectare).The proposed building shall have 24 Residential Towers (with 3 basements), 1 Commercial Block (G+26) with community facilities;
2.5. AREA DETAILS Area details are given in table below. Table 2-3 Area Details of the Site
S.No. Description Area (m2) 1. Total Plot Area 95,155 (23.51 Acre) 1. Plot area for primary school 2,000 2. Plot area for secondary school 6,000 3. Plot area for dispensary 1,100 1,367 4. Plot area for religious building 10,334 5. Plot area for commercial building 400 6. Area for Taxi stand 73,954 7. Plot area for residential buildings 2. Permissible Ground Coverage (33.33% of Plot 31,715.162 area) 3. Proposed Ground Coverage (21.20 % of Plot Area) 20,413.695 GC for residential (T1—T24) 10938.406 GC for commercial (Tower-C-01) 3940.457 GC for dispensary 330 GC for primary school 600 GC for secondary school 2,100 GC for religious building 478.500 GC for club 1 & 2 2106.382 4. Permissible FAR (@3) 2,85,465 Additional area for amenities (@ 0.6% of per. FAR) 1,712.790 Total Allowed FAR 2,87,177.790 5. Proposed FAR(@2.97) 2,85,190.951 FAR for Commercial 28,602.830 FAR for social Infrastructure 28,546.785 Residential FAR 2,27,942.672 6. Stilt area 10,943.048 7. Built up area 5, 81, 685.54 8. Non FAR area Residential Towers 99,685.260 Commercial Tower 20481.655 Social infrastructures 31,077.049 9. Mumty area 274.059 10. Basement area –(B-1) 67,016.759 Parking area (B-1) 61,893.580 Basement area-(B-2& B-3) 67,016.759 Parking area (B-2&3) 64,836.898 11. Landscape area (33 % plot area) 31,345.75 12. Open Area 48,401.93
16 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
2.6. POPULATION DETAILS During Construction Phase The total manpower requirement during construction phase of the site will be an approximate 550-600 person which includes workmen, labourers, supervisors, engineers, architect and Manager. During Operational Phase The total population of the project will be 24,261 persons that include residents, staff and visitor population .The detailed population breakup is given in table below Table 2-4 Population details for proposed building
S.No. Unit Name Type of Area Occupant Load, Total Occupancy (m2)/DU Floor Area in Population m2/Person A. Residential Towers Group-A TOWER T-01 & T-03 Residential 124 6 persons/DU 744 (Type- V) TOWER T-02 Residential 68 6 persons/DU 408 (Type- V) TOWER T-04 Residential 70 6 persons/DU 420 (Type- IV) TOWER T-05, T- Residential 390 6 persons/DU 2340 06, T-07, T-08 & T- (Type- IV) 14 TOWER T-09 & T- Residential 188 6 persons/DU 1128 10 (Type- IV) Tower T-11 & T-12 Residential 172 6 persons/DU 1032 (Type- IV) Tower T-13 Residential 78 6 persons/DU 468 (Type- IVS) Tower T-15, T-16, T- Residential 312 6 persons/DU 1872 23 & T-24 Type-III Tower T-17, T-18, T- Residential 344 6 persons/DU 2064 21 & T-22 Type-III Tower T-19 & T-20 Residential 188 6 Persons/DU 1128 (Type- II) Sub-Total (A) 1934 11604 Club-1 2433.03 1.8 m2/person 1,352 Club-2 1673.820 930 B. Commercial Group- E&F Ground Floor Mercantile/Stre 2,494.976 3 m2/person 832 et Floor Retails Upper sales 5,059.931 6 m2/person 843 Floor Multiplex No of seats commercial 820 seats 1person/seat 820 Food court commercial 650 1.5 m2/person 433
17 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Banquet hall commercial 1500 1.5 m2/person 1000 Game Zone commercial 820 1.2 m2/person 683 Office Business 21,055.923 10 m2/person 2,106 C. Community Group- B&D facilities Religious Building1 820.2 1.40 m2/person 585 School (Pri. & Sec.)2 12,000 4m2/Person 3,000 Nursing Home3 1,100 15 m2/person 73
Total (A-C) 24,261
2.7. WATER ENVIRONMENT (Requirement and Consumption) Construction Phase The water requirement during the construction phase comprises of (i) fresh water for labourers, (ii) construction water. It is estimated approx. 27 KLD (for 600 workers) of fresh water will be required for drinking purpose which will be imported in form of bottled cans from the local fresh water supplier during the days of construction. It is envisaged that the embodied water of the major building materials together worked out to be 25.604 Kl/Sq m while the water consumed during the actual construction is 2 Kl/Sq m. Hence, the total embodied water during construction shall be approx. 16,000 ML (27.604 Kl/ Sq. m of built area,). The water requirement shall be met via treated/fresh water supply. (Source:- Assessment of water resource consumption in building construction in India,S. Bardhan, Dept. of Architecture, Jadavpur University, India) Operational Phase Total water requirement for proposed redevelopment is approx. 1,903 KLD. Water demand for main uses shall be approx.1, 584 KLD. The main sources fresh water will be DJB However the secondary sources of the water are Tanker supply (For Emergency Use only) Treated Effluent from an external centralized sewage treatment Plant Water Balance diagram during Non-Rainy season and Rainy season are shown below. Table 2-5-Calculation for Daily Water Demand S.No. Description Total Unit Water Total Water Population/area Consumption Requirement (m2) (lpcd) (KLD) A. Main Uses- Residential
18 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Residential Population 11,604 86 997.944 Club Population 2282 30 68.46 B. Main Uses- Commercial 0 Offices 2,106 45 94.77 Retail (staff) 168 45 7.56 Retail (visitors) 1,506 15 225.9 Multiplex 820 15 12.3 Food court 433 15 6.5 Game zone 683 15 10.25 Banquet hall 1000 15 15 Nursing Home 73 15 1.09 C. Main Uses- social 0 infrastructure Primary & Secondary 3000 45 135 school Religious building 585 15 8.78 WATER DEMAND FOR MAIN USES [A-C] 1583.554 Say 1,584 KLD D. Other Uses Landscape area 31,345.75 3l/m2 94.03 DG cooling (18,190 kVA) 0.9l/kVA/hr 98.22 HVAC (1,000 TR) Drift Loss ,Evaporation Loss etc. – 2% 127 Volume of Flow @ 4 USGPM/TR, 10 Hrs. Average Loading – 70 %" TOTAL WATER REQUIREMENT (A-C + D) 1902.804 KLD say 1,903 KLD * DG operational hours – 6 hrs, ** HVAC operational hours- 10 hrs Table 2-6 Wastewater generation details
S.NO. DESCRIPTION QUANTITY (KLD) 1 Fresh water Requirement (70% of water from main uses) 1,109 2 Flushing water requirement (30% of water from main uses) 475 3 Wastewater Generation @ (80% Fresh water + 100% of Flushing) 1,362 4 Blow down water from HVAC cooling (@ 30%) 38
TOTAL WASTEWATER GENERATION (3+4) 1400 KLD
STP CAPACITY 1,500 KLD (2 STP’s)
19 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
20 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Figure 2-4 Water balance diagram during non-monsoon season
Figure 2-3 water balance diagram during rainy season
21 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
2.8.1. WASTEWATER DETAILS During Construction Phase The quantity of sewage generation during the construction phase will be approx. 21.6 KLD. Thus the sewage will be treated by providing small septic tanks, soak trenches and sulabh shauchalaya type mobile toilets.
During Operational Phase Total quantity of wastewater generation will likely to be 1,400 KLD. The generated sewage will be collected and treated in the in-house Sewage Treatment Plants of total capacity of 1,500 KLD (2 STP’s) the treated wastewater will be re used for flushing and gardening. Surplus treated wastewater during dry season i.e. 326 KLD and during monsoon season i.e. 420 KLD will be discharge to nearby drain after treatment. Sewage Treatment Technology The design of sewage network shall be done in accordance with the CPHEEO guideline, NBC guidelines and reverent Indian Standards. Sewage generation is assumed to be 100% of flushing water and 80% of domestic water.
The following parameters/ site conditions shall be kept in mind when designing the sewage, Sludge and
Figure 2-5 Water balance diagram during rainy season storm water drainage system.
Natural slope of the area. Layout of different facility in the complex; Possibility of using complete or part of the existing sewage network; Sub-soil water table; Provision of Sewage lifting station; ( if required) Provision of venting arrangement for manholes; Construction of manholes & laying of pipes considering ground condition; Termination of vent cowl at terrace level; Provision of adequate slope for horizontal header in the under slung pipes especially for public toilets Sewage flow starts with fractional capacity and builds up to full capacity in due course. An operational plan to meet this demand from a low flow to full flow will be part of the design. A summary of board design parameters to be adopted for designing Sewage supply system is given below.
22 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Table 2-7 Design Parameters for Sewage Collection System Different Use Norm Used Type of Collection System Separate System Design Period -30 years for sewers and appurtenances -15 years for pumps and electric equipment’s
Peak Factor 3 Minimum velocity 0.6 m/sec Maximum velocity 3.0 m/sec Minimum size of pipe 250 mm (ID) Minimum depth of Sewer 1.0 m from FGL (0.6 m minimum cushion) Hydraulic Formula for calculation for design of Manning’s formula V= 1/n*(R^2/3) *(S^1/2 ) V= sewer lines (As per CPHEEO manual 3.4.2.1 page Velocity R = Hydraulic mean depth = A/P S = no-36) Slope
Flow conditions in pipe up to 400 mm dia 0.50 full Flow conditions in pipe up to 300 mm dia 0.67 full Manning’s Co-efficient ‘n’ 0.011 Shape of sewers Circular Material of sewers HDPE Manhole Sizes As per manual on sewerage and sewerage treatment/ IS4111:1985
For depth above 0.9m & up to 1.65m 900 mm diameter For depth 1.65m & up to 2.3m 1200 mm diameter For depth 2.3m & up to 9.0m 1500 diameter
Table 2-8 Wastewater Details
Particulars Quantity Daily load 1,400 KLD [2 STP’s] Technology Proposed MBR Duration of flow to STP 24 Hours Temperature 320 C Inlet Outlet (Treated Wastewater ) pH 6.0 – 9.0 7.0-8.0 T.S.S. (mg/l) 300-400 <20 BOD5 270 C (mg/l) 250-300 <10 COD (mg/l) 400-600 <50 Oil & grease ABS (mg/l) <50 <10
23 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
An external sewage network shall collect the sewage from all units, and flow by gravity to the proposed sewage treatment plant. Following are the benefits of providing the Sewage Treatment Plant in the present circumstances: Reduced net daily water requirements, source for Horticultural purposes by utilization of the treated wastewater. This shall consequently lead to a lower withdrawal from the underground aquifer water sources. Reduced dependence on the public utilities for water supply and sewerage systems. Sludge generated from the Sewage Treatment Plant shall be rich in organic content and an excellent fertilizer for horticultural purposes.
The MBR is a suspended growth-activated sludge system that utilizes micro porous membranes for solid/liquid separation instead of secondary clarifiers.
An external sewage network shall collect the sewage from all units, and flow by gravity to the proposed sewage treatment plant.
Following are the benefits of providing the Sewage Treatment Plant in the present circumstances:
Reduced net daily water requirements, source for Horticultural purposes by utilization of the treated wastewater. This shall consequently lead to a lower withdrawal from the underground aquifer water sources. Reduced dependence on the public utilities for water supply and sewerage systems. Sludge generated from the Sewage Treatment Plant shall be rich in organic content and an excellent fertilizer for horticultural purposes.
The STP is being proposed with state-of-the-art membrane separation technology called as Membrane Bio-Reactor (MBR) which can produce very good quality with highest possible bacterial reduction without adding any chemicals. MBR (Membrane Bio Reactor) is the latest technology in wastewater treatment. MBR has many advantages such as higher quality of treated water, smaller space for installation and easier operation compared to conventional activated sludge process.
Designed to produce high quality treated water from wastewater the Membrane Bio Reactor (MBR) is among the latest technologies in biological treatment.
The characteristic of the MBR process is the use of revolutionary submerged polymeric hollow fibre membranes in the biological process water tank, so as to produce high quality permeate from domestic sewage, primary and secondary waste water, cooling tower blow down etc. The MBR is also ideal for retrofitting/augmenting capacity/quality of existing wastewater plants.
24 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
The hollow fibers are combined into bundles and wound around a carrier cartridge, which gives the membranes the required strength and allows for high-pressure air scour for cleaning. The MBR can handle very high sludge concentrations in the aeration tank because of which the size of the aeration tank reduces four to five folds. As the membrane acts as a fine filter, it does not require any further treatment using sand filters, activated carbon filters, etc. The MBR is available in standard and customized modules.
PROCESS DESCRIPTION
Figure below shows the principle of the filtration for the flat sheet type submerged membrane. Activated sludge in the aeration tank is clearly removed by the flat sheet type submerged membrane. The membrane module consists of housing, aeration diffuser; permeate water manifold and membrane elements. The membrane element consisting of flat sheet membranes sandwiching a support panel is set up vertically. Feed water including activated sludge is filtrated by flat sheet membranes with pore size of 0.1 micron meter. The air bubbles supplied from the bottom of the membrane elements continuously scour off cake of activated sludge accumulated on the membrane surface. This is continuous filtration operation. The air bubbles are also used for the biological reaction to decompose organic substances included in the raw sewage.
Figure 2-6 STP Technology Proposed MBR Module The material of the membrane is PVDF (Poly vinylidene fluoride). PVDF is fluorine polymer, which has high stability for chemicals and good physical strength. The form of membrane is fibre reinforced flat sheet membrane. The membrane has small and uniform pore size. Therefore, the rejection property of
25 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC this membrane is excellent. Almost all particles with sizes more than 0.1 micron meter can be removed effectively using this membrane. Operation Sewage from main drain line is collected through gravity pipes into a screen chamber. This manually cleaned screen is provided to remove floating and big size particles, which may choke the pumps and pipe lines. Screened sewage is then passed through equalization tank to homogenize the sewage quality and also even out flow fluctuations and feed sewage of uniform quality at constant rate to subsequent treatment units. Air mixing is also provided to mix the contents of the equalization tank. A coarse bubble aeration grid is provided to distribute air uniformly at the base of the equalization tank.
After above treatment, raw sewage is fed into aeration basin, in aeration tank, MLSS (mixed liquor suspended solids) in the range of 12000 to 15000 mg/l are maintained. The high amount of bacteria gives better and complete removal of organic matter from the raw sewage in relatively small area. Oxygen required for the bacteria is supplied through the blower. The air is used both for scouring of membranes and supplying oxygen to bacteria.
The filtration is carried out by the suction pump directly sucking permeates water. The permeate water produced is clear and devoid of bacteria and viruses to the minimum levels.
As the membranes are continuously under operation, they are polluted with organic or inorganic substances. Hence, chemical cleaning is carried out once in two to three months for removing substances polluting and clogging the membranes. Normal cleaners used are sodium hypo chloride and citric acid.
Preventive measures to Avoid Leaching Treated sewage from Sewage Treatment Plant will be conveyed to Treated Sewage Tank through pipelines. All the joints from piping system will be checked periodically and carrying treated wastewater pipes will be laid in conduits wherever road crossings are expected. Thus no leaching of treated sewage into nearby water courses shall take place. Supervisors will be employed for overall operation & maintenance of water supply, waste water treatment and other utility services.
2.8. RAINWATER HARVESTING AND STORM WATER DRAIN
A rainwater harvesting system comprises components of various stages -transporting rainwater through pipes or drains, filtration, and recharging the ground water through tanks. Percolation structures will be constructed for ground water recharge. As the site is having high groundwater level so the rainwater storage tanks are proposed. Runoff from the first spell of rain carries a relatively large amount of pollutants from the air and catchments surface so the system will be provided with a filtration pit
26 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC consisting of layers of sand, gravel and pebbles of relevant sizes to remove impurities from the collected rainwater. Need for Rainwater Harvesting Surface water is inadequate to meet the daily demand and we have to depend on ground water. Due to rapid urbanization, infiltration of rain water into the sub-soil has decreased drastically and recharging of ground water has diminished. Rainwater harvesting prevents the flooding of low-lying areas in the site. Efficacy of Rainwater Harvesting The storm water disposal system for the premises shall be self-sufficient to avoid any collection/stagnation and flooding of water. The amount of storm water run-off depends upon many factors such as intensity and duration of precipitation, characteristics of the tributary area and the time required for such flow to reach the drains. The drains shall be located near the carriage way along either side of the roads. Taking the advantage of road camber, the rainfall run off from roads shall flow towards the drains. Storm water from various areas/shall be connected to adjacent drain by a pipe through catch basins. Therefore, it has been calculated to provide rainwater storage structures at selected locations, which will catch the maximum run-off from the area. 1) Since the existing topography is congenial to surface disposal, a network of storm water pipe drains is planned adjacent to roads. All building roof water will be brought down through rain water pipes. 2) Storm water system consists of pipe drain, catch basins and seepage pits at regular intervals for rain water harvesting and ground water recharging. The quantity of storm water load for the proposed construction project is given below. Table 2-9-Calculation for Strom Water Load for the Proposed Site S. Type of Catchment's Run off Peak rainfall intensity Rain water harvesting No. Surface Area (sq. mtrs) Coff. (in m) potential (in m3/hr) a.Building 1. Roof Area 20,413.695 0.8 0.035 571.583 2. Paved area 43,392.555 0.7 0.035 1063.11 3. Green area 31,345.75 0.1 0.035 109.71 Total Storm water load calculated 1744.403 b.Considering 15 mins retention period 436 3 c.Volume of rainwater harvesting storage structure (4mtrs * 3.5mtrs * 4 mtrs) 56 m RAINWATER HARVESTING STRUCTURE PROPOSED 8
27 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Figure 2-7 Rainwater storage structure
(Source: Central Ground Water Board, Manual on norms and standards for environment Clearance of large construction projects, MoEF&CC) * Dimensions may vary 2.9. PARKING DETAILS
Adequate provision will be made for car/vehicle parking at the project site. There shall be adequate parking provisions for visitors so as not to disturb the traffic and allow smooth movement at the site. Proposed project will be consists of basement and open parking. The parking space criteria and area requirement provided are summarized in the table below. Parking details are designed as per Delhi Building Bye Laws Table 2-10 ECS Required
(As per the EIA guidance Manual from MoEF& CC)
28 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Parking required (for Commercial) 1 car space for every 25 m2 FAR area = 31,345.750/25 = 1,142 ECS Parking required (for Residential) 1 tenement of 75 m2 built up area = 2,79,944.48/75 = 3,732 ECS Parking Required as per MoEF&CC = 4,874 ECS As per the Delhi Building Bye Laws Parking required (for Commercial) 1 ECS @ 50 Sqm of proposed FAR = 1 × 31,345.750/50 = 571 ECS Parking required (Residential) 1 ECS@ 100 Sqm of proposed area = 1 × 2,23,975.42/100 = 2,240 ECS Parking required 2,811 ECS
Table 2-11: Parking Proposed Stilt area for Parking 6,544.548 sq.mt. ECS Calculation @ 28 sq.mt /ECS 234 ECS Basement area for parking 1,91,567.38 sq.mt Basement B1 61,893.580 sq.mt. Basement B2 64,836.898 sq.mt. 64,836.898 sq.mt. Basement B3 ECS Calculation @ 32 sq.mt /ECS 5,994 ECS MLCP for Commercial 4,429.48 sq.mt Block C-01 MLCP 3rd to 6th (1,107.37 * 4) ECS Calculation @ 16 sq.mt /ECS 277 ECS Total Parking Proposed 6,497 ECS
2.10. POWER REQUIREMENT
The electrical load requirement has been calculated on the basis of covered area of various buildings/ blocks as per NBC 2016. State electricity board shall provide electric supply on 33 kV for meeting electrical load requirements of proposed project.
Table 2-12-Electrical Load Details Power Requirement Details Transformer Selection Demand load estimated for project is approx. 24.82 MW
Source of Power Supply To meet the load, the HT supply will be received at 33 kV from the Tata Power. Backup power supply DG Sets will be of arrangement 4× 500kVA, 8 × 1250KVA, 3 × 380KVA +5 × 1010KVA.
29 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Location of DG Sets DG sets shall be placed in basement Stack Height As per CPCB norms and Local Authority
2.11. EARTHING SYSTEM Earthing with Maintenance free Chemical earthing system/GI Earthing System/Copper Earthing system, as required, shall be provided for earthing sub stations equipment’s, Electrical Panel boards, UPS and other Equipment /installations in each building. Earthing shall be in conformity with provisions of rule 32,61,61, 67 & 68 of Indian Electricity Rules 1956 & as per IS-3043 as amended up to date. Copper/GI earth strips shall be used for connecting. Earth leakage circuit breakers shall be provided in the DBs for individual units. Separate and distinct earth stations with insulated electrode shall be provided for the following:
HT Panels Main LT Panels & LT Distribution Panels UPS system – Body & Neutral EPABX & LAN Server Transformers - Neutral & Body DG Sets - Neutral & Body Lifts Any other equipment as required.
All electrical installations shall be provided with double Earth connection and single phase electrical installations with one Earth connection as per IS specifications & NBC 2016.
2.12. FIRE FIGHTING SYSTEM Addressable Intelligent fire detection and Alarm system of latest technology with Fire alarm panels, multi Sensor detectors, smoke detectors, heat detectors, beam detectors, response indicators, manual call point and hooters, light strobe etc. shall be provided. It shall meet the requirement of NBC 2016/NDMC Specifications/ State By laws. License/Approval of Local Fire Authorities shall be provided for the complex. There shall be the proper Zoning of the complex/buildings considering the Non Critical & Critical areas. Repeater panels shall be provided in various buildings as required.
Fire Detectors and devices of other ancillary buildings/ blocks shall be connected to Fire Control Panel of the nearest building through necessary cables in DWC HDPE pipes. The monitoring of whole complex shall be in the Main Fire Control Room of Building. For Central Monitoring of all the Fire Panels, necessary devices like PC, Printer, modules & Software etc. of latest technology with minimum
30 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
1 TB hard disk shall be provided in the Control room. The details of the system proposed shall be as follows:
Addressable intelligent dual type Fire Detectors is suggested. Detectors should be with inbuilt short circuit isolator & automatic addressing. Detectors should be installed as per coverage defined in NFPA 72. It should include all rooms, halls, storage areas, basements, attics, lofts, and spaces above suspended ceilings including plenum areas utilized as part of the HVAC system. In addition, coverage should include all closets, elevator shafts, enclosed stairways, dumbwaiter shafts, chutes, and other subdivisions and accessible spaces. Each detector & devices shall have integrated short circuit isolator. Suitable numbers of input/ output (C/M) relay modules are suggested for connecting other equipment like Electrical Panels, lifts, firefighting system, AHUs etc. Spacing between two detectors shall not be more than 8 Mtr. or it shall be as per relevant code & manufacture standards. Cabling shall be with Fire Survival Armored copper cable. Suitable addressable loop powered sounders/ hooters for 100db sound level are suggested. Addressable manual call boxes shall be provided near all exits, stair cases, lift lobbies etc. as per relevant Norms. The Response Indicators shall be used in the waiting areas, Corridors, Common Area, conference Hall or in large room etc. Microprocessor IP based fire alarm control panel (fully redundant) for number of required loops with 24 hrs. Battery backup with LCD display, printer etc. shall be located in the fire control room. Fire Alarm Panels shall be integrated with PA system and with BMS also.
2.13. SOLID WASTE DETAILS During Construction Phase Solid wastes from construction sector can be categorized into two phases i.e. during construction & during operation. The construction phase waste will comprise of excavated & demolition material while operational phase waste may comprise of domestic, commercial, biomedical & industrial hazardous wastes, depending upon the type of the project. The different type of wastes need to be handled as per their needs and regulatory requirements Construction Phase The solid waste expected to be generated during the construction phase will comprise the construction and demolition waste, C& D waste has two major components.
31 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Major components includes Cement concrete, Bricks, Cement plaster, Steel (From RCC, door/window frames, roofing support, railings of staircases etc., rubbles, stone (marble, granite, sand stone),Timber/wood (especially demolition of old buildings). Minor components-Conduits (iron, plastics), Pipes (GI, iron, plastic), electrical fixtures (copper/ aluminum wiring, wooden baton, switches, wire insulation), panels (wooden, laminated), others (glazed tiles, glass panes) Construction waste is bulky and heavy and is mostly unsuitable for disposal by thermal or biological process such as incineration or composting. In India, when old buildings are demolished the major demolition waste is soil, sand and gravel accounting for bricks (26%) & masonry (32%), Concretes (28%), metal (6%), wood (3%) others (5%). Bricks, tiles, woods and iron metal are sold for reuse / recycling (BMTPC). Excavations, concrete, masonry and wood together constitute over 90% of all C & D waste. At site approx. 14,782 m2 area shall be demolished, would have same composition.
3% 5% 6%
26% Soil & Gravel Masonry Concrete
28% Metal Wood Others 32%
Figure 2-8- Typical composition of C& D Waste
The following steps will 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.
32 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Remaining soil shall be utilized for refilling / road work / rising of site level at locations/ selling to outside agency for construction of roads etc. C& D waste shall be stored and transported to Govt. approved recycling plant and disposal site for further treatment and disposal.
Figure 2-9 Solid Waste Management for Construction Phase During Operational Phase The project will adopt a systematic approach for solid waste collection and disposal. Solid waste generated from the project will be collected properly and will be managed as per MSW Rules, 2000 amended in 2016. Waste shall be mainly categories in two classes. 1. Bio degradable Waste 2 Non- biodegradable Waste. The biodegradable portion dominates the bulk of MSW. This is mainly due to food and yard waste. These solid wastes will be collected separately by putting three types of separate bins at the source of generation. For the biodegradable waste yellow bins will be provided, for the recyclable waste black bins and for the non-recyclable waste red bins will be provided. It is estimated that maximum solid waste generation would be about 8.45 TPD; Following are the solid waste generation rate has been considered as is given table. Table 2-13: Calculation of Solid Waste Generation of Proposed Building Category Counts (heads) Waste Generated (kg/day)
33 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Residents 11,604 @0.5kg/day 5,802 Staff/students 7,556 @0.25kg/day 1,889 Visitors/ Floating 5,100 @0.15kg/day 765 Landscape Waste (7.74 Acre) @ 0.2 kg/acre/day 1.55 Total Waste Generated 8457.55 say 8458 kg/day
(Source:http://cpheeo.nic.in/WriteReadData/Cpheeo_SolidWasteManagement/chap3.pdf ) Following arrangements will be made at the site in accordance to Municipal Solid Wastes (Management and Handling) Rules, 2000 and amended Rules; 2016. 2.14.1. Collection and Segregation of waste For Domestic Waste A door to door collection system will be provided for collection of domestic waste in colored bins from every unit. The local vendors will be hired to provide separate colored bins for dry recyclables and Bio- Degradable waste. For waste collection, adequate number of colored bins (Green and Blue & dark grey bins– separate for Bio-degradable and Non Bio-degradable) are proposed to be provided at the strategic locations of the area. Litter bin will also be provided in open areas like parks etc. 2.14.2. Treatment of Waste Domestic Waste Bio degradable Waste Bio-degradable waste will be subjected to the compost/resultant will be used as manure. STP sludge is proposed to be used for horticultural purposes as manure. Horticultural Waste is proposed to be composted and will be used for gardening purposes. Recyclable Waste The cropped grass will be spread on the green area. It will act as manure after decomposition. Recyclable wastes like paper, plastic, metals etc. will be sold off to recyclables. 2.14.3. Disposal Recyclable and non-recyclable wastes will be disposed through Govt. approved agency. Hence, the Municipal Solid Waste Management t will be conducted as per the guidelines of Municipal Solid Wastes (Management and Handling) Rules, 2000 and amended Rules, 2016. Solid waste management Scheme is depicted in the following figure.
34 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Solid waste
Non Biodegradable Biodegradable Waste Waste
Recyclable Non-Recyclable Green bins
Organic waste Blue bins Dark Grey Bins Composter
Govt. approved Govt. approved Manure Vendor agency
Figure 2-10: Solid Waste Management Scheme -Domestic Waste
The garbage will be collected and stored in garbage collection room and segregated as Biodegradable waste, Non-Biodegradable waste and Recyclable waste using different color coded bins
Bio degradable waste will be treated by OWC and used as a manure for gardening area Recyclable wastes are inert waste which will be disposed through authorized recyclers. The total excavated earth material will be used for refilling in the low lying area.
Technique for disposal of biodegradable waste Organic Waste Converter The Mechanical Composter involves a biomechanical process which decomposes bacteria and produces odorless pre-organic compost in 15 minutes. The machine occupies small area and provides a cleaner and better environment.
35 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Working Principle Mechanical Composter converts the organic waste into odorless, pre-compost manure in 15-20 minutes. The organic waste, free from foreign particles is fed into MC. The shredder reduces the organic waste into the optimum particle size for composting. Then it is mixed with moisture absorbing materials and Useful microorganisms. This mixture is then blended for a homogeneous mixture and is converted into pre compost manure in 20 minutes. The pre compost manure is then fed into aerated compost blocks or 12 - 15 days. The compost blocks or piles are specially designed for the pre-compost manure to have proper aeration and suitable environment to mature. The final manure will be rich in nutrients and used for the development of green belt. Salient Features of Organic Waste Converter (OWC) Quick, easy to operate, less space requirement and odor free manure compared to other waste conversion process Immediate and hygienic disposal of food waste Waste minimization strategy followed by 3R Technique (Reduce, Reuse, Recycle) Savings on Purchase of Manure for landscape Savings on Waste Disposal Expenses Elimination on the usage of chemical fertilizers Carbon credit revenue in the future Optimum Conditions for Composting During Composting process, optimum conditions shall be maintained to achieve better compost value. The parameters mentioned below shall be maintained accordingly during operation. Table 2-14-Optimum condition for composting S.No. Parameters Values 1. C/N ratio 30 : 1 2. Particle Size 1/8 to 2 inches 3. Oxygen 15 % - 20 % 4. Temperature 55 - 65.5 ⁰ C 5. Moisture 40 % - 60 % 6. pH 6.5 - 7.5
Table 2-15-Characterstic of Final Compost S.No. Parameters Concentration (% except pH) 1. Total Nitrogen 1.3 2. Total Phosphorus 0.2-0.5
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3. Total Potassium 0.5 4. Organic phosphorus 0.054 5. pH 8.6 6. Moisture 45-50 7. Organic Matter 30-70
Figure 2-11-Organic Waste Convertor
Benefits of organic waste converter: Large quantity of solid waste is converted to fertilizer in a very short period This fertilizer can be sold as compost to farmers, or used for gardening Machine requires less space and the efficiency is high Manpower and maintenance is very less This is one of the latest techniques of managing solid waste.
37 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
2.14. LANDSCAPE DETAILS Total green area proposed for project is 31345.75 m2 (33 % plot area). A combination of evergreen and ornamental, palms, shrubs and ground covers planted along the sides of the road and in open space and set back area within the complex layout. Landscaping is an important element in altering the microclimate of the place. Proper landscaping reduces direct sun from striking the buildings and heating up building surfaces, prevents reflected light carrying heat into a building from the ground or surfaces, creates different air flow patterns and can be used to direct or divert the wind advantageously by causing a pressure difference. Shade created by tress & the effects of grass & shrubs reduce air temperature adjoining the building and provide evaporative cooling A diverse variety of indigenous evergreen and ornamental trees would be planted. As the project site for construction consists of trees, herbs and shrubs it will require cutting of trees for construction purpose. At present approx. 650 trees will be translocate and 680 trees shall be planted, trees which will cut for them compensation tree plantation will be done at site as well as other lands under DDA. The plant species will be selected on the basis of Urban Standard Plantation norms and CPCB guidelines. Landscape Details are given in below table Table 2-16 Landscape area details
Plot Area 95,155 m2 Landscape area Proposed 31345.75 m2 (33 % plot area) As Per MoEF Guidelines One tree per 80 m2 of total area out of which minimum 50 % to be in the category of evergreen trees. Trees Required 95,155/80 = 1,189 Trees proposed at site 1,190 trees Shelter belt (@ 70% of green 19,982.55 m2 area) Shrubs, herbs, lawns, parks & 8,563.95 m2 climber plants, avenue plantation (@ 30% of green area)
38 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Chapter-3. DESCRIPTION OF BASELINE ENVIRONMENT This chapter provides the details pertaining to existing environment settings in the study area of the proposed redevelopment of Staff Colony at Model Town, New Delhi. Study Area: An area within 2/5 km radius from the periphery of project site earmarked as the study area. The generation of baseline data comprises of site visits, primary environmental monitoring, ecological surveys, social surveys, processing of satellite imagery and secondary data review from established sources such as Indian Meteorological Department, Census of India etc. NABL accredited lab was engaged to carry out the environmental monitoring for twelve weeks extending from March- May 2019. The monitored parameters included -ambient air quality, water quality, soil quality, noise levels, biological environment, social and traffic survey of the study area. Baseline data is enclosed.
3.1. METHODOLOGY The baseline assessment is based on project site area assessment and reconnaissance survey of the study area of 2/5 km radius around the site boundary. The studies were conducted by considering the following: The various environmental attributes were divided into primary and secondary studies. Primary attributes such as air environment, water, soil, noise, traffic, flora and fauna and socio-economic aspects were assessed by conducting field studies and on-site monitoring and review of the past studies conducted; and Secondary attributes such as land use studies, geology, physiological characteristics, have been assessed by literature review of studies conducted in the past and by various government publications and departments and other related past studies and literature etc. Primary environmental baseline data viz. ambient air quality, water quality, soil quality, noise level and traffic density was collected during March- May 2019 as per norms and standards prescribed by CPCB.
39 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
The various parameters surveyed and studied for the baseline study are discussed in the following sections components. Land Environment Meteorology Air Environment Ambient Noise Level Water Environment Soil Quality Biological Environment Solid waste and management Socio-economic status
3.2. LAND ENVIRONMENT
3.2.1 SITE SETTING AND TOPOGRAPHY The proposed site is connected to Delhi, Noida, and other NCR regions. It is surrounded by places such as Jahangir Puri, Mouziwal Bagh, Rameshwar Nagar, azadpur, Transport centre, Kewal Park, Indar Nagar within 5 km of the area of the site. Site is located on Arihant Marg near Majlis Park Metro station. It has green buffer on the North, Queen Mary and Srijan School on the East, Arihant Marg on the West side and Rajeshwar colony on the South Physically the natural capital territory of Delhi can be divided into 3 segments - the Yamuna flood plain, the Ridge and the Plain. The entire area of the national capital territory of Delhi is categorized as Bangar or the plain. The land of the plain is mostly fertile. The entire area of the site is monotonously flat. The project area possesses plain terrain. Highest elevation levels is 211 meters & the lowest levels is 215 meters.
3.2.2 PHYSIOGRAPHY The physiography of Delhi is dominated by the river Yamuna, and the Aravalli range, and the plains in between, formed by alluvium deposits of recent formation. The Delhi Ridge and its four sections, the northern, the central, the south central and the southern constitute the farthest extension of the Aravalli range, its spurs meeting the Yamuna at two points, in the north and the east.
3.2.3 GEOLOGY AND SEISMICITY Delhi, the capital of India is bounded by the Indo-Gangetic alluvial plains in the North and East, by Thar Desert in the West and by Aravalli hill ranges in the South. The terrain of Delhi is flat in
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general except for a low NNE-SSW trending ridge which is considered and extension of the Aravalli hills of Rajasthan. As per the seismic zoning map of India (IS: 1893, Part-1, 2002), the project site is located in the Zone IV, classified as MSK VIII i.e., area having high damage risk zone. The IS code assigns zone factor of 0.24 for Zone 4. The design of all the proposed facilities in the project will take into account the required seismic resistance. Below shown figures mentioning the Seismic Zone map for India Indicating project location and First Level Seismic Hazard Micro-zonation Map of NCT, Delhi
Figure 3-1 Seismic Zonation and Intensity Map of India showing Project Site
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Figure 3-2 First Level Seismic Hazard Micro zonation Map of NCT, Delhi 3.3. METEOROLOGY Meteorological parameters are responsible for dispersion and diffusion of pollutants in the atmosphere. Thus, the Assessment of the existing meteorological conditions in the vicinity of a source of pollutants is vital for assessing air quality in the area. The main parameters are temperature, humidity, rainfall, winds and cloud cover. The meteorology and air environment of the area are discussed in subsequent sections.
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3.3.1. LONG TERM METEOROLOGICAL DATA The most recent long-term climate trend data was obtained for the years (2005-2010), from the closest Indian Meteorological Department (IMD) surface station at IGI Airport, Palam, and Safdarjung. Mean monthly normal of atmospheric parameters, wind roses for each month giving the wind direction speed were collected and have been presented in Table below. Most probable wind speed class and wind direction in the area has been assessed and presented.
Table 3-1 Climatologically Summary (obtained from nearest IMD MET Station at SFD (2005-2010) Month Mean Monthly max. Mean Daily min. Total Rainfall Relative Temp. (0C) temp. (0C) (mm) Humidity (%) January 23.5 3.9 0.6 71.8 February 25.4 7.4 23.9 66.7 March 31.0 12.6 11.3 54.5 April 36.1 14.2 9.1 36.3 May 37.2 20.7 44.8 42.0 June 36.4 15.6 87.6 54.9 July 32.5 19.5 143.9 71.7 August 31.6 24.0 158.4 75.8 September 30.8 21.8 151.3 74.1 October 30.4 15.3 0.8 58.3 November 26.9 10.0 7.6 63.8 December 23.0 3.9 1.0 68.4 Average 30.4 14.1 640.6 61.5 3.3.2. PRECIPITATION The data obtained from IMD station at SFD for the average annual rainfall in the years 2005-2010 has been presented Table 3-2 Annual Rainfall (mm) at the nearest IMD MET Station Year Annual Rainfall (mm) 2007 610 2008 710.5 2009 486.2 2010 979.4 2011 409.5 Source : IMD, Years 2005-2010
The rainfall is fairly well distributed throughout the monsoon season starting from July which ends in September; with annual average rainfall over period of five years is 510 mm.
3.3.3. SURFACE TEMPERATURE During the summer months of April, May and June, temperatures rises to 40-45°C; winters are typically cold with temperatures during December and January falling to 6 to 7°C. February, March, October and November are climatically the best months. The average of mean monthly maximum temperature as assessed from the Climatological data gathered from IMD
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surface station at IGI Airport, Palam, SFD is 30.4°C and average of mean monthly minimum temperature is 14.1°C. The average of monthly relative humidity is 61.5%.
3.3.4. WIND DIRECTION AND SPEED Ground level pollutant concentration is inversely proportional to the wind speed. It can be referred from Table below that the wind speed is maximum in the month of May and blows at a speed of 13.09 kmph whereas month of November experiences lowest wind speed being 5.38 kmph. The predominant wind direction is West and North West. Table 3-3 wind speed and direction Month Wind Speed Pre dominant Wind Direction January 8.85 NW February 10.65 NW March 11.31 W April 12.25 NW May 13.12 NW June 11.25 W July 10.04 W August 9.43 W September 9.79 W October 7.38 W November 5.38 calm December 5.98 calm Average Mean 9.74 W,NW The predominant wind direction in May (during hot & dry condition) is North-West and in June & July (during monsoon season) the predominant wind direction is from Southeast
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Figure 3-3 Seasonal wind rose diagram 3.3.5. MIXING HEIGHT Mixing Height (MH) is the vertical extent through which the contaminant plume can be mixed. During the winter, average mixing height is lower as compared to other seasons and atmospheric dispersion is typically at a minimum and therefore the pollutants will not be as widely dispersed. During the summer months, the average mixing height is typically at its greatest resulting in increased mixing through a greater volume of the troposphere, and hence lower pollutant concentrations. As studied from secondary data, the monthly average mixing height over Delhi varies from 500- 1200 meters.
3.3.6. WIND ROSE During the monitoring period, the direction of the wind is predominantly from West followed by West North west and West South West same as long terms trend. The average wind speed during the monitoring period was observed as 2.26m/s and a very low calm period of 0.26% is reported. The wind rose diagram for the study period is presented in below diagram
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Figure 3-4 wind rose diagram during Monitoring Period [March- May 2019] 3.4. AIR ENVIRONMENT An important component of an EIA study is the assessment of prevailing ambient air quality status in the vicinity of project site. The tropical climatic conditions, especially monsoon winds prevailing in India mainly control the transport and dispersion of air pollutants during different seasons. Local topographical features along with predominant winds and weather conditions also play a vital role in dispersion of these air-borne particles. The baseline studies for air environment covers reconnaissance, identification of specific air pollutants expected to have significant impacts from the proposed project and assessing their prevailing levels in ambient air at representative locations within the impact zone around the project site. The sources of air pollution during construction and operational phases of the project are as follows Sources of Pollution during Construction Phase:
The construction phase includes site clearance and site preparation, infrastructure development, building construction and demolition, and other related activities, movement of construction
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vehicles and diesel based machine equipment. All construction sites generate high levels of dust (typically from concrete, cement, wood, stone, silica) During the construction phase of the project, the pollutants anticipated to be emitted are - particulate matter (SPM), carbon monoxide
(CO), and Sulphur dioxide (SO2) from all construction activities.
Sources of Pollution during Operational phase:
The operational phase includes emissions from vehicular movement and negligible emissions from sewage and solid waste handling and disposal. During the operational phase of the project,
the pollutants anticipated to be emitted are - nitrogen oxides (NOx), SPM, Sulphur dioxide (SO2) and CO from vehicle exhaust within the project site
5.2.1. SITE AREA SPECIFIC AMBIENT AIR QUALITY Source of air emission surrounding the site
The vicinity of the project site is characterized by urban setup with presence of industrial, residential, commercial and offices areas. Local activities in these areas within 2 kms of study area contribute to air pollution. Site surroundings have multiple sources such as vehicles, industries both large and small scale, and diverse area sources, such as DG sets, domestic burning, biomass-refuse burning etc. They all contribute towards air pollution in the study area. Site–specific Ambient Air Quality Monitoring
A site–specific background air quality monitoring program was conducted for the project site pre-
monsoon season, March- May 2019. Background data was collected for SPM, RSPM, SO2, NOx, CO at five (5) locations, primarily selected on the basis of predominant wind direction, which is North- West direction. The details of the AQ Monitoring locations are presented in Table below. The basic considerations while designing this air quality examination programme included: o Topography; o Representative location w.r.t upwind and downwind directions; o Representative location w.r.t regional background eg. Urban, semi-urban, rural area; o Ecologically sensitive locations within 10 km; o Availability of source of Power; and o Accessibility AAQ monitoring equipment were placed at sensitive receptors (i.e. within or nearby places), where safety and power were provided. Monitors were placed on one-storey dwellings, away from major roads and nearby flow obstructions (i.e. trees).
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Station No. Location Distance and direction from Project area/study Project area area AAQ1 Project site 0,Centre Core Area AAQ2 Model Town III 0.44 km, E (Downwind) Buffer area (Pocket-D) AAQ3 Mahendru Enclave 0.75 km, SE (Downwind) Buffer area AAQ4 Transport Centre, 0.73 km, W (Upwind) Buffer area Model Town AAQ5 Kewal park Ext. 0.67 km, NW (Upwind) Buffer area
The parameters to be monitored, frequency and number of samples taken at each station are presented in the table below
Table 3-4 Details of monitoring programme for Ambient Air quality
Particulars Details Frequency 24hrs, 2 times a week x 8 weeks
Parameters PM10, PM 2.5, SO2, NOx, CO and Dust Fall
Duration 24 hrs for PM10, PM 2.5, SO2, NOx, hourly Samples for CO The protocol and analysis procedures followed to examine the collected samples were as per IS-5182 (Indian Standards for Ambient Air Quality Parameters). The applied testing procedures are given below. Table 3-5 Brief summary of the Methodology followed for analysis of Ambient Air Quality
S.No. Pollutant Code of Practice Method of Measurement 1. Particulate Matter (size less than 10 IS-5182 (PART- Gravimetric
μm or PM10 23):2006 & CPCB 2. Particulate Matter (size less than 2.5 Guidelines
μm or PM2.5
3. Sulphur Dioxide (SO2) IS-5182 (Part-II):2001 & Improved West and CPCB Guidelines Geake
4. Nitrogen Dioxide (No2) IS-5182 (Part-VI): 2006 Modified Jacob & & CPCB Guideline Hochheiser (Na- Arsenite)
5. Carbon Monoxide (CO) IS: 5182 (Part-X) & Non Dispersive Infra- CPCB Guidelines Red (NDIR) spectroscopy
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Figure 3-5 Ambient air quality monitoring stations
Table 3-6 Ambient Air Quality in the Study Area (March- May 2019)
Parameters Observed AQ-1 AQ-2 AQ-3 AQ-4 AQ-5 Project site Model Mahendru Transport Kewal park Town III Enclave Centre, Ext (Pocket-D) Model Town
PM10 24 hourly NAAQS 100 100 100 100 100 (μg/m3) Minimum 69 92 95 92 69 Maximum 315 308 309 265 310.25 Average 186 198.8251 172.377 172.95 154.0395 98th Percentile 308.2 293.8921 286.58 263.86 295.445
PM 2.5 24 NAAQS 60 60 60 60 60 hourly (μg/m3) Minimum 41.8 50.47 46.3 51.3 39.7 Maximum 172.4 168.2 168.4 152 182.6 Average 101.1476 107.5802 93.552 94.83 87.93636 98th Percentile 166.88 158.792 161.2484 150.936 177.098
NAAQS 80 80 80 80 80
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SO2: 24 hourly Minimum 9.2 12.68 9.9 9.2 9.1 (μg/m3) Maximum 21.4 26.2 26.30 22.77 24.8 Average 15.66 18.65 16.87 16.59 16.53 98th Percentile 21.36 25.78 25.57 22.71 24.13 NOx: 24 hourly NAAQS 80 80 80 80 80 (μg/m3) Minimum 22.9 22.60 24.8 17.8 20.8 Maximum 40.2 39.1 39.6 39.5 40.6 Average 32.50 34.26 32.5 29.8 32.22 98th Percentile 39.92 39.08 39.6 39.4 40.56 CO: hourly NAAQS 4 4 4 4 4 (mg/m3) Minimum 0.52 0.82 0.48 0.14 0.49 Maximum 1.82 1.72 1.55 1.49 1.63 Average 1.19 1.26 0.99 1.03 1.02
98th Percentile 1.74 1.70 1.50 1.45 1.51 The analysis of the above results clearly shows that all the monitored values exceed the limits prescribed by Central Pollution Control Board for PM10 and PM2.5 respectively. The summary of results is presented in the following sub sections.
5.2.2. INFERENCES
Particulate Matter – PM 10
The PM-10 concentration recorded at all the five sampling locations exceeds the limits of prescribed CPCB limits of 100µg/m3. The minimum value recorded was i.e. 69 µg/m3 at AQ-4.
3 The maximum value recorded was 315 µg/m at AQ-1. High values of PM10 recorded can be attributed due to dust on the road due to vehicular movement, Construction and demolition activities within and in the vicinity.
Particulate Matter – PM 2.5
The PM-2.5 concentrations as observed in the study area varied from a minimum i.e. 39.7 μg/m3 recorded at AQ-5 to maximum i.e. 182.6 μg/m3 at AQ-5. All the values were observed to exceed the prescribed CPCB standards of 60μg/m3. The main sources of PM 2.5 generation are vehicular emission, open waste burning
Sulphur dioxide (So2)
3 The concentrations of sulphur dioxide in the region were observed to be in the range of 9.1 μ g/m
3 to 12.6 μ g/m . The minimum value was recorded at AQ- and the maximum value of SO2 was recorded at AAQ-2. All the values were observed to be within the prescribed limit by CPCB
Oxides of Nitrogen (NOx)
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3 The maximum NOx concentration observed was 40.6 μg/m at AQ-5. The minimum value recorded was 17.8 μg/m3 at AQ-4. The NOx concentrations were within the prescribe norms of 80 μg/m3 as per NAAQS guidelines.
Carbon Monoxide (CO) The maximum CO concentration observed was 1.82 mg/m3 at Project Site (AQ-1). The minimum value recorded was 0.14 mg/m3 at (AQ-4). The CO concentrations were within the prescribe norms of 4 mg/m3 as per NAAQS guidelines.
3.5. NOISE ENVIRONMENT The different sources of noise pollution during the construction phase include vehicles carrying construction and demolition material, operation of construction machinery and equipment at site. During the operational phase of the project, the noise pollution is expected to arise due to increase in vehicular movement in and around the site. Estimated traffic volumes and peaks at the selected locations have been presented in the results from the traffic baseline sampling study. An assessment of the baseline noise levels at five (5) locations within the 5 km radius study area was done. Table below presents the details of noise monitoring, which have also shown in Figure below Table 3-7 Noise quality Monitoring station
Station Location Distance and Project Criteria considered / No. direction from area/study area Land use Project area NQ1 Project site 0,Centre Project site (Residential ) NQ2 Commercial 0.34 km, NE Study area (Commercial) complex NQ3 Kids Innovation 0.50 km, NW Study area (silence Zone) School NQ4 Transport Centre, 0.73 km, W Study area (Industrial) Model Town NQ5 Rameshwar 0.45 km, N Study area (Residential) Nagar
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Figure 3-6 Noise Quality Monitoring Station
The Central Pollution Control Board constituted a Committee on Noise Pollution Control. The Committee recommended noise standards for ambient air and for automobiles, domestic appliances and construction equipments, which were later notified in Environment (Protection) Rules,1986 as given below:- Table 3-8- Ambient Quality Standards in Respect of Noise
Area Code Category of area Noise dB (A) Leq Daytime* Night time* A Industrial Zone 75 70 B Commercial Zone 65 55 C Residential Zone 55 45 D Silence Zone 50 40 (Source: Central Pollution control Board) Note: 1. Day time is reckoned in between 6 a.m. and 9 p.m.
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2. Night time is reckoned in between 9 p.m. and 6 a.m. 3. Silence zone is referred as areas up to 100 meters around such premises as hospitals, educational institutions and courts. The Silence zones are to be declared by the Competent Authority. Use of vehicular horns, loudspeakers and bursting of crackers shall be banned in these zones. 4. Mixed categories of areas should be declared as one of the four above mentioned categories by the Competent Authority and the corresponding standards shall apply. Noise standards for automobiles, domestic appliances and construction equipments have been notified in Part 'E', Schedule-VI of Environment (Protection) Rules, 1986, as amended on 19th May, 1993, noise standard for vehicles are as given in the Tables below.
Table 3-9 Noise standers for Vehicles
S.No. Category of Vehicle Noise limit in dB(A) 1. Motorcycle, scooters and three wheelers. 80 2. Passenger Cars 82 3. Passenger or commercial Vehicle up to 4 MT 85 4. Passenger or commercial Vehicle above 4 MT upto 12 MT 89 5. Passenger or commercial Vehicle above 12 MT 91 (Source: Central Pollution control Board) The Observations of the noise monitoring were calculated as Leq Day and Leq Night. The results are presented in the and depicted in Table below
Table 3-10 Observation of Noise monitoring location
S.No. Site Zone Limit as per CPCB Observed Value Leq, guideline Leq, dB(A) dB(A) Day Night Day Night 1. Project site (Residential ) 55 45 62.8 54.5 2. Commercial (Commercial) 65 55 67.2 56.2 complex 3. Kids Innovation (silence Zone) 50 40 52.3 41.1 School 4. Transport Centre, (Industrial) 75 70 68.9 62.5 Model Town 5. Rameshwar (Residential) 55 45 58.4 49.2 Nagar
Day time Noise Level Noise levels during day time were observed to be in the range of 52.3 to 68.9 dB (A). The maximum noise level was 68.9 dB (A) at NQ-4 and a minimum of 52.3 (A) was observed at NQ-3.
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Night time Noise Levels Noise levels at night time were observed in the range of 41.1 to 62.5 dB (A). The maximum noise level was 62.5 dB (A) was observed at NQ-4 and a minimum of 41.1 dB (A) observed at NQ-3
3.6. WATER ENVIRONMENT This section discusses status of water resources and water quality in the project area. The data has been collected from various secondary sources and primary survey carried out in the impact zone. To assess the existing status of the water environment (pre-project) in the project study area, representative sampling locations for surface water and ground water were selected on the basis of their respective significance within the study area around project site and sent for laboratory testing. The standard methods prescribed for surface and groundwater samplings as well as the analytical procedures for individual parameters were followed in this study.
3.6.1 Water availability in the region Delhi depends largely on river Yamuna and partially on river Ganga for its share of raw water. For sustainable development of Delhi, it is essential to ensure adequate supply of water in terms of reliability, quality and quantity. Although, Delhi has an average water availability of 225 lpcd, the distribution of the same is not uniform. The water requirement has to be made from river water allocation and ranney wells in Yamuna flood plains. The future supply crucially depends on the progress of the proposed dams in U.P, Uttaranchal and H.P; Satluj Yamuna link canal and Sharda Yamuna link canal. Further it will also depend upon the conveyance system, which should be in place before the release of allocated water to Delhi. However to some extent localised ground water extraction and its supply after treatment to prescribed level of quality may also be required to meet up the demands. In addition, promotion of recycled wastewater based on techno economic feasibility is also to be done by the concerned agencies for water augmentation
3.6.2 Groundwater Characteristics National Capital Region (NCR) is basically a water scarce region, dependent upon surface water resources from outside its boundaries for its water supply. The complex situations of ground water occurrence in different formations, presence of saline ground water at varying depth in the aquifers and growing urbanization influences availability of ground water in different parts of NCR of Delhi. According to Central Ground Water Board, the net annual ground water availability of nine districts of NCT Delhi sub-region is 0.28 BCM. The total annual estimated ground water
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extraction is of the order of 0.48 BCM. The annual ground water extraction & use is highest in the South-West district. Groundwater Level According to secondary sources, Depth to water level: The depth to water level recorded in NCT Delhi during January 2016 ranges from 0.74 to 59.51 m bgl. A total of 115 stations have been analyzed district wise. An analysis of the data reveal that in South district 47% of the wells have water levels of more than 40 m bgl and 20% in the range of 20 to 40 m bgl. The water levels in the districts of Southwest and New Delhi are in the range of 10 to 20 m bgl in 42% of the area and a few patches of 20 to 40 m bgl water levels are also observed in New Delhi, South and Southwest districts. In rest of the district’s the water level ranges between 2 to 10 m bgl indicating that, only in 50% of the State the water levels are below 10 m bgl (Plate-14, Annexure-1 & 14) covering entire Yamuna Flood Plain and East, Northeast, Northwest and North districts. Maximum water levels in the states are observed in the monitoring wells at Godaipur, Jaunapur, Palam, and Pushp Vihar ranging between of 56 to 59 m bgl. When the data of January-2016 has compared with 10 year mean of January, it has been observed that 67% of monitoring stations of New Delhi and Northwest show a fall in water level where the highest fall is 4.23 m and 4.03 m respectively. The same condition prevails in South and Southwest districts in 54% of the area where the highest depletion is 7.20 m and 7.65 m respectively.
Figure 3-8 Decadal fluctuation in groundwater level- NCT Delhi Northeast and east have also suffered depletion of
Figure 3-7 Depth of Ground water level-NCT Delhi water table in the range of 5.09 to 5.40 m. The overall
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observation of water levels in the state indicates that the southern districts are facing maximum declining conditions. Whereas rest of the districts like Central, East, Northeast, West, South and Southwest shows fall in the range of 0.01 to 3.55 m. The overall data indicates that in South and Southwest districts the water levels are showing maximum fall. 3.6.3 Project area-Specific Water Sampling/Monitoring The surface and ground water samples were collected from different locations representing ground water and surface water receptor within the Study area. The criteria for selecting the locations of sampling were:
Landuse (nearness to habitation/ any waste disposal sites) Drainage patterns (man-made/ natural canals etc)
Two (2) surface water samples and three (3) ground water samples were collected for analysis. Table below gives the location details of the ground water and surface water sampling locations.
Table 3-11Surface Water and Groundwater Monitoring Stations
S.No. Location Location Code Distance from the Project Site (km) 1. Naini Lake SW1 1.39 km, SE 2. Yamuna River SW2 (upstream) 4.89 km, SSE 3. Yamuna River SW3 4.92 km, SSE (Downstream) 4. Project Site GW1 0,Centre 5. Model Town III (Pocket-D) GW2 0.44 km, E 6. Mahendru Enclave GW3 0.75 km, SE
The ground water samples were analyzed for parameters as per IS: 10500 standards and the analysis was undertaken as per IS 3025 and relevant APHA standard methods. In case of surface water, CPCB limits for classification of water were followed for assessment of water quality. Details of monitoring program for surface water quality and ground water quality has been given in below tables. The results of the analysis are also presented in subsequent table
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Figure 3-9 Surface water and Ground water Monitoring locations
Table 3-12 Monitoring programme for surface water
Particulars Details Frequency 3 grab sample Parameters Parameters as per CPCB Water Use Class Methodology Representative sampling across River, collection in sterilized inert sampling bottles and analysis according to standard BIS Methodology
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Table 3-13: Monitoring Programme for Ground Water
Particulars Details Frequency 3 grab sample for composite sampling from each station once during the Study Period Parameters Temperature, TDS, TSS, pH, TH, Ca, Mg, Conductivity, DO,
Zn, Cu, Cl, SO4, NO3, F, Fe, Pb and Coliform Methodology Sample collection in sterilized inert sampling bottles and analysis according to standard BIS Methodology (IS: 10500)
Table 3-14 Water quality analysis- Surface Water Monitoring (March- May 2019)
Parameters Unit SW-1 SW2- SW-3 Naini Yamuna Yamuna Lake river river upstream Down stream 1 pH value at 250C - 7.29 7.58 7.65
2 Turbidity NTU 14 16 18 3 Temperature oC 23.6 25.2 25.6
4 Total Hardness as CaCO3 mg/l 214 380 414 5 Total Dissolved Solids mg/l 475 915 948 6 Total Alkalinity as CaCO3 mg/l 192 352 378 7 Chlorides (as Cl) mg/l 86 89 96 8 Calcium (as Ca) mg/l 52.5 38.4 42.4 9 Magnesium (as Mg) mg/l 20.2 168 152 10 Sulphate (as SO4) mg/l 46 72 78
11 Nitrate(as NO3) mg/l 10.9 14.5 18.2 12 Fluoride (as F ) mg/l 0.4 0.8 0.6 13 Sodium (as Na) mg/l 64 115 122 14 Potassium (as K) mg/l 7 13 10 15 Phosphate as PO4 mg/l 0.69 0.82 0.93 16 Lead (as Pb) mg/l <0.05 <0.05 <0.05 17 Iron (as Fe) mg/l 0.16 0.22 0.19 18 Cadmium (as Cd) mg/l <0.01 <0.01 <0.1 19 Zinc (as Zn) mg/l <0.29 0.58 0.69 20 Total arsenic (as As) mg/l <0.01 <0.01 <0.01 21 Chromium (as Cr) mg/l <0.01 <0.01 <0.01 22 Nickel (as Ni) mg/l <0.1 <0.1 <0.1 23 Phenolic Compounds (as C6H5OH) mg/l <0.001 <0.001 <0.001 24 Dissolved Oxygen mg/l 6.5 3.5 3.2 25 Chemical Oxygen Demand mg/l 56 248 260 26 Biological Oxygen Demand (27°C 3 mg/l 8.3 34 38 days) Microbiological Parameters 27 Total Coliform MPN/100ml 2.3*103 2.4*103
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3.6.4 RESULTS The surface water sample was collected from Yamuna River upstream and downstream where: The Biological Oxygen Demand (BOD) levels were found to be very high, i.e. 38 mg /l.SW3) The pH from all the locations varies from 7.29-7.65.The dissolved oxygen varies from 3.2 mg/l to 6.5 mg/l. Surface water quality was analyzed for parameters as mentioned in the ‘Methods of Monitoring & Analysis published by CPCB (Annexure-IV)’ and it was rated according to the CPCB Water Quality Criteria against A, B, C, D & E class of water based on parameters identified in the criteria. Water samples were collected as Grab water sample from sampling location in a 5 liter plastic jerrycan and 250 ml sterilized clean glass/pet bottle for complete physico-chemical and bacteriological tests respectively. The samples were analyzed as per standard procedure/ method given in IS: 3025 (Revised Part) and standard method for examination of water and wastewater Ed. 21st, published jointly APHA, AWWA and WPCF. The surface water quality is compared with CPCB water quality criteria mentioned in Table below Based on above analysis, the quality of Surface water samples collected from Yamuna river can be classified as Class “E” of CPCB standards which is categorized as ‘Irrigation, Industrial Cooling, Controlled Waste disposal Table 3-15 Water Quality Criteria as Per Central Pollution Control Board
Table 3-16 Groundwater analysis
S. No. Parameters Unit Limit (as per IS:10500:2012)
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Desirable Permissib Project Model Mahaendr Limit le Limit site Town u enclave (GW1) (GW2) (GW3)
1. Color Hazen 5 15 <2 <5 <5 2. - Agreeable Agreeable Agreea Odour Agreeable Agreeable ble 3. NTU Agreeable Agreeable Agreea Taste Agreeable Agreeable ble 4. Turbidity - 1 5 <1 <1 <1 5. pH mg/l 6.5-8.5 NR 7.86 7.85 7.73 Total Hardness (as mg/l 6. 200 600 840 268 458 CaCO3) 7. Iron (as Fe) mg/l 1.0 NR 0.23 0.16 0.19 mg/l 8. Chlorides (as Cl) 250 1000 510 145 226 9. Fluoride (as F ) mg/l 1 1.5 0.7 0.5 0.7 10. TDS mg/l 500 2000 2260 865 1120 mg/l 11. Calcium(as Ca2+) 75 200 186 52 96 12. Magnesium (as mg/l 30 100 33.6 53.1 Mg2+) 91.4 mg/l 13. Copper (as Cu) 0.05 1.5 <0.01 <0.05 <0.05 mg/l 200 400 82 112 14. Sulphate (as SO4) 309 mg/l 45 NR 12.5 15.2 15. Nitrate(as NO3) 19.2 16. Phenolic mg/l 0.001 0.002 <0.001 <0.001 Compounds (as <0.001 C6H5OH) 17. Mercury (as Hg) mg/l 0.001 NR <0.001 <0.001 <0.001 mg/l 0.003 NR 18. Cadmium (as Cd) <0.003 <0.003 <0.003 19. Selenium ( as Se ) mg/l 0.01 NR <0.01 <0.01 <0.01 20. Arsenic (as As) mg/l 0.01 0.05 <0.01 <0.01 <0.01 mg/l 0.05 NR 21. Cyanide (as CN ) <0.01 <0.01 <0.01 22. Lead (as Pb) mg/l 0.01 NR <0.01 <0.01 <0.01 mg/l 5 15 23. Zinc (as Zn) 0.29 0.25 0.43 24. Anionic Detergent mg/l 0.2 1.0 <0.01 <0.01 (as MBAS) <0.01 25. Chromium (as Cr) mg/l 0.05 NR <0.01 <0.01 <0.01 mg/l 0.5 NR 26. Mineral oil <0.01 <0.5 <0.5 Total Alkalinity as mg/l 200 600 27. 586 372 410 CaCO3 mg/l 0.03 0.2 28. Aluminum (as Al) <0.02 <0.02 <0.02 mg/l 0.5 1.0 29. Boron (as B) <0.1 <0.1 <0.1
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Microbiological Parameters 30. Total Coliform mg/l Shall not be detected Not detected
31. E.coli mg/l Shall not be detected Absent
Ground Water quality Ground Water results are inferred below: Levels of Total Dissolved Solids (TDS) vary from 865-2260 mg/lt which is higher to desirable limit of 500 mg/l. The Alkalinity of ground water was within the permissible limit of 600 mg/l; Total hardness levels (268-840 mg/l) exceeded the respective desirable limits at all ground water sampling locations;(at Site GW-1, 840 mg/l ) All the ground water samples were observed to be free of contamination of bacteriological and fecal contamination
3.7. SOIL QUALITY The pre-project status with respect to soil characteristics (physical, chemical and bacteriological), land use pattern in the study area around the proposed project site forms the baseline status of land environment. A soil sampling program was carried out at representative four locations selected in the basis of type of land use (nearness to agricultural fields, drainage, source of pollution etc). The details of soil monitoring locations are given in table below.
Table 3-17 Details of Proposed Soil Sampling Locations
Station No. Location Distance and direction Project area/study area from Project area SQ1 Project site 0,Centre Project site SQ2 Model Town 0.44 km, E Study area III (Pocket-D) SQ3 Mahendru 0.75 km, SE Study area Enclave
The parameters to be monitored, frequency and methodology of sampling are as follows in table below
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Figure 3-10 Soil Quality Monitoring Locations
Table 3-18: Details of Monitoring Program for Soil Quality
Particulars Details Frequency One grab sample from each station– once during the Study Period Parameters Texture, % Moisture, % Sand, % Silt, % Clay, % Organic Matter, Bulk Density, pH, Electrical Conductivity, NKP, Sodium Absorption Ratio, B, Na, Pb, Fe, Zn and Water Holding Capacity Methodology Composite grab samples of the topsoil would be collected from 3 depths, and mixed to provide. A representative sample for analysis. They would be stored in PET containers and analyzed at the laboratory
Soil sampling was done to establish the baseline characteristics so as to assess the anticipated impacts due to proposed project. Soil samples were collected using auger from a depth of 30 cm (sub surface) from the upper surface. Samples were homogenized before testing. The samples were packed in dependable, waterproof containers and analysed as per ASTM, USEPA, IS: 2720, M.L.
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Jackson (Soil Chemical Analysis). The sampled soil quality results are presented in below table and characteristics are described further. Table 3-19-Methods for Soil Analysis
S.N Parameters Method 1. pH (30 gms/ 75 ml) pH meter 2. Electrical conductivity, μmho/cm (1:5 with water) Conductivity meter
3. Texture Grain size analysis 4. Chlorides as Cl, % by mass Volhard’s method 5. Sulphates as SO4, % by mass Gravimetric method 6. Magnesium as MgO, % by mass AAS 7. Aluminium as Al2O3, % by mass AAS 8. Total Phosphorus as P2O5, % by mass Gravimetric method 9. Calcium as CaO, % by mass AAS 10. Sodium as Na2O, % by mass AAS 11. Potassium as K2O, % by mass AAS 12. Nitrogen Kjeldahl method 13. Sodium absorption ratio By calculation 14. Moisture, % by mass Oven dry 15. Total Hydrocarbon, mg/kg Solvent extraction
Table 3-20-Result of Soil Quality Analysis (March- May 2019)
S.No Parameter Unit SQ-1 SQ-2 SQ-3 1 Texture - Sandy Loam Sandy Loam Sandy Loam Sand % 59.2 53.4 62.4 Silt % 21.5 25.2 17.8 Clay % 19.3 21.4 19.8 2 pH (1:2) - 7.96 8.03 7.76 3 Electrical Conductivity µmhos/cm 488 388 265 (1:2) 4 Cation exchange meq/100 gm 15.9 12.9 10.7 capacity 6 Exchangeable Sodium mg/kg 117 262 189 7 Exchangeable Calcium mg/kg 2080 1920 16660 8 Exchangeable mg/kg 552 504 420 Magnesium 9 Sodium Absorption - 0.59 1.37 1.07 Ratio
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10 Water Holding % 26.5 28.5 26.5 Capacity 11 Porosity % 32.9 31.7 36.2 12 Permeability cm/hr 2.1 2.2 2.4 13 Organic matter % 0.61 0.69 0.48 14 Bulk Density gm/cc 1.39 1.43 1.34 Available Nutrients: 15 Nitrogen as N kg/ha 219 268 210 16 Phosphorus(Olsen’s) as kg/ha 14.3 17.2 15.3 P 17 Potassium as K kg/ha 138 214 192
The results of the soil quality analysis were compared with the standard soil classification provided by the Indian Council of Agricultural Research (ICAR) and as given in Table below
Table 3-21: Standard Soil Classification Soil Parameters Classification pH Normal to Saline 6.0-8.5 Trending to become alkaline 8.5-9.0 Alkaline Above 9.0 Electrical conductivity (mmhos/cm) Up to 1.00 – Normal
1.01- 2.00 - Critical to germination 2.01-4.00 - Critical for growth of the sensitive crops Above 4.00 – Injurious to most crops Source: Indian Council of Agricultural Research, New Delhi
In qualitatively terms, soil texture refers to the feel of the soil material, whether coarse and gritty, or fine and smooth. In general, soil behavior can be inferred from the texture. At project site and within its 5 km radius, soil is sandy loam. The Sand percentage observed in the soil ranged from 53.4% to 62.4 %, silt 17.8 % to 25.2 % and clay 19.3 % to 21.4 %. Water holding capacity ranges from 26.5 to 28.5 % at all soil quality monitoring locations. Total nitrogen content present in the soil available in the region ranges between 210-268 mg/ha and phosphorus content was observed 14.3-17.2 mg/ha to all the locations monitored. This indicates that soil in the study area having low levels of Phosphorus and Nitrogen. Soil in the study area contains very low quantity of Micronutrient such as Copper and Zinc and Manganese.. Land parcels can be classified according to its possible use for irrigation based on soils. As the soils present in study area predominantly is sandy loam, land can be classified as class 1 i.e., the highest level of irrigation suitability and thus the highest payment capacity.
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SQ1 SQ2 SQ3
Figure 3-11 Soil Texture of study area
3.8. BIOLOGICAL ENVIRONMENT Natural ecosystem is a complete community of living organisms and non-living constituents in a given area and their interactions. An ecosystem has self-sustaining ability and controls the number of organisms at any level by cybernetic rules. The basic purpose to explore the biological environment
Under Environmental Impact Assessment (EIA) is to assess the potential ecological impacts of the proposed project upon ecology and develop adequate mitigation measures to keep ecological impacts within acceptable limits. An ecological survey of the study area was conducted, particularly with reference to listing of species and assessment of the existing baseline ecological conditions in the study area. The main objective of the ecological survey is aimed at assessing the existing flora and fauna components in the study area. Data has been collected through extensive survey of the area with reference to flora and fauna. With the change in environmental conditions, the vegetation cover as well as animals reflects several changes in its structure, density and composition. The present study was carried out separately for floral and faunal community of core and buffer zone respectively. Need to Study The present study was undertaken with the following objectives: To assess the nature and distribution of vegetation in and around the project site (within 10 km. radii)
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To assess the animal life spectra (within 10 km radii) To achieve the above objectives a study area was undertaken. The different methods adopted were as follows:
Compilation of secondary data with respect to the study area from published literature and various government agencies; Generation of primary data by undertaking systematic ecological studies in the area. 3.8.1. Selection of Sampling Location for the study of Flora and Fauna Core Zone (10 Collection site): Core zone is the area where project is to be constructed.as the site area is 19.15 Hectare so it is considered as core zone. All the flora and fauna of core zone has been recorded during the survey.
Buffer Zone (20 Data Collection Areas): The zone falling within 10 Km radius around the project area.
3.8.2. Methodology for Study of Flora For Primary Data Collection
Five sites were identified within the project site to ensure that the different ecosystem and land-use types in the area are suitably represented. At each site, floristic diversity was studied through quantitative sampling. A quadrate of approximately 20 m x 20 m was used to record species of flora species. Owing to the relatively short duration of the survey, the focus of the floristic observations was limited to the higher flora.
At each site, faunal diversity was studied through direct evidence, in the form of visual sightings or calls, and indirect evidence, such as nests, burrows, droppings, scats, moults, tracks, etc. Owing to the survey being conducted during the daytime only, the focus of the faunal observations remained limited to the diurnally active faunal species, mainly birds.
Different species were observed at different timing during the day
Bird: Birds were watched during dawn.
Nocturnal and Burrowing animals: After Sunset.
Animals: Morning & Evening
Collection of Secondary Data
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Secondary data is collected i.e., Compartment History prepared by the Forest Department, Working Plan of the Area other relevant records such as plantation journals and records of wildlife / forest offence cases.
Cropping Pattern: The main crops grown in Delhi are Wheat, Paddy, Jawar and Bajra but in terms of productivity, wheat is the predominant crop in Delhi followed by Paddy, Jawar and Bajra. Beside these crops fruits and vegetables are also cultivated
3.8.3. Flora of the Study Area Forest Types According to the Champion and Seth Classification of Indian Forests, the natural vegetation of the survey area represents the following forest-type: Type 6B/C1 (Group 6 – Tropical Thorn Forests, Sub-group B – Northern Tropical Thorn Forests, Subtype C1 – Desert Thorn Forest) The main type, 6B, is found over the major portion of the semi-arid to arid regions of Punjab, Haryana, Uttar Pradesh, Madhya Pradesh, Rajasthan and northern Gujarat. They mostly occur on flat alluvial or aeolian soils, but tend to extend into surrounding low and hilly country. The natural vegetation is dominated by Acacias and allied species, the trees varying from 4.5 to 10 m in height and tending to be collected in clumps, leaving bare ground in between. The woody vegetation is of all sizes, from the trees down to the dwarf shrubs, with no differentiation into stories. The perennial grasses also grow in clumps and tussocks. There is a thin growth of annual grasses after the rains. Besides the Acacias, thorny Mimosaceae species occur frequently in these forests, of which Prosopis cineraria is the most common. Among shrubs, Capparis species and Asclepiads are usually present. The most characteristic grasses are Lasiurus hirsutus and Panicum turgidum on Aeolian soils, Sporobolus marginatus on saline soils and Cenchrus sp. throughout the tract. The sub-type, C1, occurs where the country is flat to undulating and the soils are largely fluvial or Aeolian deposits in various stages of consolidation. The forest is extremely open, with a few scattered plants here and there. Consociations of Acacia senegal and Prosopis cinerarea are relatively prominent. Species associated with this forest type include: Trees like Acacia leucophloea, Acacia nilotica, Acacia senegal, Azadirachta indica, Balanites aegyptiaca, Cordia dichotoma, Dichrostachys cinerea, Flacourtia indica, Holoptelea integrifolia, Prosopis cineraria, Salvadora oleoides, Tecomella undulata, Vitex negundo and Ziziphus sp.; Shrubs like Alhagi camelorum, Calotropis procera, Capparis decidua, Capparis sepiaria, Clerodendrum phlomoides, Commiphora mukul, Grewia spp., Justicia adhatoda, Securinega leucopyrus, Tephrosia purpurea and Ziziphus nummularia;
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Herbs like Achyranthes aspera, Cassia sp., Echinops echinatus, Indigofera sp., Ocimum canum,Peristrophe paniculata, Sida sp., Solanum surattense and Xanthium indicum; Climbers like Asclepiad climbers, Cocculus hirsutus and Tinospora cordifolia; and Grasses like Aristida sp., Cenchrus barbatus, Cynodon dactylon, Eragrostis sp. and Themeda quadrivalvis 3.8.4. Quantification of Flora Description of Core Zone with flora Details:
Total area covered under core zone is site area i.e. 9.51 Hectare. List of woody and non woody plantation recorded during survey study is as follow
Table 3-22 Flora in Core area S. No. Scientific Name Vernacular Girth Height Spread Frequency Name (mtrs) (mtrs) (mtrs) (%) 1. Kigelia africana balam khira 1.85 20 18 0.47 2. Phyllanthus amarus Bhui amla 0.55 8 5 0.44 3. Aegle marmelos Bael 0.4 4 2 1.88 4. Alastonia Scholaris Saptaparni 2.6 20 15 11.32 5. Albizia lebbeck Siras 1.45 13 10 7.07 6. Arecaceae Palm 0.7 4 3 0.47 7. Artocarpus heterophyllus Kathal 0.8 8 10 0.47 8. Azadirachta indica Neem 1.15 12 10 24.05 9. Boinjovina 1.5 7 2 0.47 10. Bombax ceiba Semar 2.5 25 20 41.98 11. Callistemon Bottle brush 1.2 10 8 10.37 12. Cascabela thevetia kaniar 0.3 5 3 0.47 13. Citrus limon Nimboo 0.32 3 2 0.44 14. Cordia myxa Lasora 0.8 12 7 2.35 15. crataeva nurvala Varuna 1.1 12 10 8.01 16. Dalbergia sissoo Shisham 2.15 18 12 16.03 17. Delonix regia Gulmohar 0.85 12 13 6.13 18. Ehretia laevis chamrod 0.3 6 3 13.67 19. Eucalyptus Safeda 2.2 13 8 2.83 20. Ficus benjamina Whipping fig 1.5 6 9 16.4 21. Ficus Pertusa banyan 1.1 12 10 5.18 22. Ficus racemosa Gular 1.95 20 20 10.37 23. Ficus religiosa Pipal 4.4 25 20 47.16 24. Ficus virens Pilkhan 2.2 7 9 7.07 25. Hevea brasiliensis Rabar 0.6 8 9 2.83 26. Holoptelea integrifolia Papri 0.55 6 4 4.24 27. Hyophorbe lagenicaulis Bottle palm 1.55 16 6 7.07 28. Madhuca longifolia mahua 0.6 6 5 1.88
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29. Mangifera indica Mango 0.2 6 2 8.49 30. Melia azedarach Pride of India 1.45 18 13 6.60 31. Michelia champaca Champa 1.65 10 8 5.18 32. Morus nigra Shehtoot 0.7 6 3 31.13 33. Neolamarckia cadamba Kadam 6 10 7 1.88 34. Phoenix dactylifera Khajur 0.65 8 5 8.01 35. Pinus roxburghii Chir 1 14 7 3.30 36. Pithecellobium dulce Jungle Jalebi 1 10 8 1.88 37. Pongamia pinnata Sukha Tree 1.2 13 6 1.88 38. Populus Poplar 1.9 25 6 0.47 39. Prosopis chilensis angaraji babul 0.4 5 5 0.47 40. Prosopis julifera angaraji babul 0.5 4 4 0.47 41. Psidium guajava Guava 0.6 5 4 3.30 42. Punica granatum Anaar 0.7 5 3 0.47 43. Saccharum spontaneum Phul 0.65 6 6 0.47 44. Saraca asoca Ashok 0.5 11 2 52.35 45. Schleichera oleosa Kusum 0.9 10 8 4.24 46. Syzygium cumini Jamun 0.7 12 10 7.54 47. Tectona grandis Teak 0.7 8 7 1.88 48. Terminalia arjuna Arjun 1.4 10 12 7.07 49. Vachellia karroo Kikar 1.6 12 8 2.83 50. Ziziphus mauritiana Ber 2 10 14 0.44 (Source: Field visit by Ecology & Biodiversity Team)
Note:
Total number of trees present at the site is approximately 600-800.out of total, approx. 623 trees need to be fell/translocate in lieu of redevelopment. As the known fact that trees play an especially important role in enhancing our quality of life in the urban environment, they have ecological and environmental value. Keeping this in mind project proponent is planting saplings in the area given by DDA.For the extermination and compensatory plantation, contractor shall obtain the approval from DDA. 3.8.5. Fauna of the Study Area Avifauna
Observed Avifaunal Profile
The avifaunal profile recorded in the quadrat studies is dominated by birds associated with open scrub such as Grey Francolin, Green Bee-eater, Laughing Dove, Long-tailed Shrike, Indian Jungle Crow, Black Drongo, Indian Robin, Common Stonechat, Brahminy Starling, Common Babbler, Ashy-crowned Sparrow Lark and Rufous-tailed Lark.
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Delhi zoo is at the distance of 1.54 km from the site.A good range of open land associated species were recorded. They include resident species such as Buceros bicornis, Ocyceros birostris, Pavo cristatus, Platalea leucorodia, Egretta garzetta, Threskiornis melanocephala, Gallus gallus, Cygnus atratus, Phasianus colchicus, Chryslophus pictus, Psittacus erithacus. Another significant component comprises birds associated with habitation, cultivation and gardens, including Indian Peafowl, Common Hoopoe, Indian Roller, Common Pigeon, Jungle Babbler, Common Myna, Red-vented Bulbul, Ashy Prinia, Common Tailorbird, Purple Sunbird and House Sparrow. There is also a distinct component comprising birds showing a preference for forests, plantations, groves or orchards, including Rose-ringed Parakeet, Asian Koel, Southern Coucal, and Spotted Owlet.Raptors sighted include Common Kestrel, Black-winged Kite, Black Kite and Shikra. Table 3-23- Residential Avifauna of the Study area
S.No. Scientific Name Common Name IUCN Status* WPA Schedule 1. Francolinus francolinus Black Francolin LC IV 2. Francolinus pondicerianus Grey Francolin LC IV 3. Coturnix coromandelica Rain Quail LC IV 4. Perdicula asiatica Jungle Bush Quail LC IV 5. Perdicula argoondah Rock Bush Quail LC IV 6. Pavo Cristatus Indian Peafowl LC I 7. Sarkidiornis melanotos Knob-billed Duck LC 8. Nettapus coromandelianus Cotton Pygmy Goose LC IV 9. Anas poecilorhyncha Indian Spot-billed LC IV Duck 10. Tachybaptus ruficollis Little Grebe LC IV 11. Mycteria leucocephala Painted Stork NT IV 12. Ciconia episcopus Wolly necked Stork LC IV 13. Ephippiorhynchus asiaticus Black-necked Stork NT IV 14. Threskiornis melanocephalus Black-headed Ibis NT IV 15. Platalea leucorodia Eurasian Spoonbill LC I 16. Nycticorax nycticorax Black crowned Night LC IV Heron 17. Ardeola grayii Indian Pond Heron LC IV 18. Ardea cinerea Grey Heron LC IV 19. Ardea purpurea Purple Heron LC IV 20. Bubulcus ibis Cattle Egret LC IV 21. Casmerodius albus Great Egret LC IV 22. Mesophoyx intermedia Intermediate Egret LC IV 23. Egretta garzetta Little Egret LC IV
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24. Anhinga melanogaster Darter NT IV 25. Phalacrocorax niger Little Cormorant LC IV 26. Falco chicquera Red-necked Falcon NT I 27. Falco jugger Laggar Falcon NT I 28. Elanus caeruleus Black-winged Kite LC IV 29. Milvus migrans Black Kite LC IV 30. Haliastur indus Brahminy Kite LC IV 31. Haliaeetus leucoryphus Pallas’s Fish Eagle 32. Pernis ptilorhynchus Oriental Honey LC IV Buzzard 33. Neophron percnopterus Egyptian Vulture EN IV 34. Gypus bengalensis White-rumped Vulture CR I 35. Gypus indicus Indian Vulture CR I 36. Sarcogypus calvus Red-headed Vulture CR IV 37. Circaetus gallicus Short-toed Snake Eagle LC IV 38. Spilornis cheela Crested Serpent Eagle LC IV 39. Accipiter badius Shikra LC I 40. Butastur teesa White-eyed Buzzard LC IV 41. Aquila hastata Indian Spotted Eagle VU 42. Aquila rapax Tawny Eagle LC IV 43. Aquila fasciata Bonelli’s Eagle LC IV 44. Ardeotis nigricepas Great Indian Bustard CR I 45. Amaurornis phoenicurus White-breasted LC IV Waterhen 46. Amaurornis akool Brown Cake LC IV 47. Turnix suscitator Barred Buttonquail LC IV 48. Porphyrio porphyrio Purple Swamphen LC IV 49. Gallinula chloropus Common Moorhen LC IV 50. Fulica atra Eurasian Coot LC IV 51. Grus Antigone Sarus Crane VU IV 52. Burhinus(oedicnemus) indicus Indian Thick-knee LC - 53. Esacus recurvirostris Great Thick-knee NT - 54. Hydrophasianus chirurgus Pheasant-tailed Jacana LC IV 55. Metopidius indicus Bronze-winged Jacana LC IV 56. Vanellus malabaricus Yellow-wattled LC IV Lapwing 57. Vanellus indicus Red-wattled Lapwing LC IV 58. Charadrius dubius Little Ringed Plover LC IV 59. Rostratula benghalensis Greater Painted-Snipe LC IV 60. Cursorius coromandelicus Indian Courser LC - 61. Glareola lacteal Small Pranticole LC -
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62. Sterna aurantia River Tern NT - 63. Sterna acuticauda Black-bellied Tern EN - 64. Rynchops albicollis Indian Skimmer VU 65. Pterocles exustus Chestnut-bellied LC IV Sandgrouse 66. Pterocles indicus Painted Sandgrouse LC IV 67. Columbia livia Common Pigeon LC - 68. Streptopelia decaocto Eurasian Collard Dove LC IV 69. Streptopelia tranquebarica Red Collared Dove LC IV 70. Stigmatopelia chinensis Spotted Dove LC IV 71. Stigmatopelia senegalensis Laughing Dove LC IV 72. Treron phoenicopterus Yellow-footed Green LC IV Pigeon 73. Psittacula eupatria Alexandrine Parakeet NT 74. Psittacula krameri Rose-ringed Parakeet LC IV 75. Psittacula cyanocephala Plum-headed Parakeet LC IV 76. Hierococcynx varius Common Hawk- LC IV Cuckoo 77. Eudynamys scolopaceus Asian Koel LC IV 78. Taccocua leschenaultii Sirkeer Malkoha LC IV 79. Centropus parroti Southern Coucal LC IV 80. Tyto alba Barn Owl LC IV 81. Otus bakkamoena Indian Scops Owl LC 82 Athene brama Spotted Owlet LC IV 83. Bubo Bubo Eurasian Eagle Owl LC IV 84. Bubo coromandus Dusky eagle owl LC 85. Caprimulgus asiaticus Indian Nightjar LC IV 86. Caprimulgus affinis Savanna Nightjar LC IV 87. Apus affinis Little Swift LC - 88. Upupa epops Common Hoopoe LC 89. Coracias benghalensis Indian Roller LC IV 90. Halcyon smyrnensis White-throated LC IV Kingfisher 91. Alcedo atthis Common Kingfisher LC IV 92. Ceryle rudis Pied Kingfisher LC IV 93. Merops orientalis Green Bee-eater LC - 94. Ocyceros birostris Indian Grey Hornbill LC - 95. Megalamia zeylanica Brown-headed Barbet LC 96. Megalamia haemacephala Coppersmith Barbet LC IV 97. Dendrocopos mahrattensis Yellow-crowned LC IV Woodpecker
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99. Tephrodornis pondicerianus Common Woodshrike LC IV 100. Coracina macei Large Cuckooshrike LC - 101. Pericrocotus cinnamomeus Small Minivet LC IV 102. Lanius vittatus Bay-backed Shrike LC IV 103. Lanius schach Long-tailed Shrike LC - 104. Lanius meridionalis Southern Grey Strike LC - 105. Dicrurus macrocercus Balck Drongo LC - 106. Dicrurus caerulescens White-bellied Drongo LC IV 107. Rhipidura aureola White-browned Fantail LC - 108. Dendrocitta vagabunda Rufous Treepie LC - 109. Corvus splendens House Crow LC IV 110. Riparia paludicola Plain Martin LC V 111. Ptyonoprogne concolor Dusky Crag Martian LC - 112. Petrochelidon fluvicola Streak-throated LC - Swallow 113. Cecropis daurica Red-rumped Swallow LC - 114. Mirafra erythoptera Indian Bush lark LC IV 115. Ammomanes phoenicura Rufous-tailed Lark LC IV 116. Eremopterix griseus Ashy-crowded Sparrow LC IV Lark 117. Galerida cristata Crested Lark LC IV 118. Alauda gulgula Oriental Sky Lark LC IV 119. Pycnonotus Leucotis White-eared Bulbul LC IV 120. Pycnonotus cafer Red-vented Bulbul LC IV 121. Prinia hodgsonii Grey-breasted Prinia LC - 122. Prinia gracillis Graceful Prinia LC - 123. Prinia sylvatica Jungle Prinia LC - 124. Prinia socialis Ashy Prinia LC - 125. Prinia inornata Plain Prinia LC - 126. Prinia buchanani Rufous-fronted Prinia LC - 127. Cisticola juncidis Zitting Cisticola LC - 128. Orthotomus sutorius Common Tailorbird LC - 129. Turboides caudatus Common Babbler LC IV 130. Turboides malcolmi Large Grey Babbler LC IV 131. Turboides striata Jungle Babbler LC IV 132. Chrysomma sinense Yellow-eyed Babbler LC IV 133. Zosterops palperbrosue Oriental White-eye LC IV 134. Salpornis spilonotus Spotted Creeper LC - 135. Acridotheres ginginianus Bank Myna LC IV 136. Acridotheres tristis Common Myna LC IV 137. Gracupica contra Asian Pied Starling LC -
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138. Sturnia pagodarum Brahminy Starling LC IV 139. Copsychus saularis Oriental magpie Robin LC IV 140. Saxicoloides fulicatus Indian Robin LC IV 141. Saxicola caprata Pied Bushchat LC IV 142. Cercomela fusca Brown Rock Cat LC IV 143. Dicaeum agile Thick-billed LC IV Flowerpecker 144. Cinnyris asiaticus Purple Sunbird LC IV 145. Passer domesticus House Sparrow LC - 146. Gymnoris xanthocollis Chestnut-shouldered LC - Petronia 147. Ploceus benghalensis Black-breasted Weaver LC 148. Ploceus philippinus Baya Weaver LC IV 149. Euodice malabarica Indian Silverbill LC IV 150. Amandava amandava Red Avadavat LC - 151. Lonchura punctulata Scaly-breasted Munia LC IV 152. Motacilla maderaspatensis White-browed Wagtail LC IV 153. Anthus rufulus Paddyfield Pipit LC IV *Conservation status assigned by International Union for Conservation of Nature and Natural Resources (IUCN), where CR –Critically Endangered, EN – Endangered, LC – Least Concern, NT – Near Threatened and VU – Vulnerable WPA - Wildlife (Protection) Act, 1972 Reference: R. Grimmett, C. Inskipp & T. Inskipp (2011) Birds of the Indian Subcontinent. Oxford University Press; the IUCN Red List of Threatened Species 2016-2 Species listed in BOLD were sighted in the study area during the survey Mammals
Table below presents the list of the mammalian species associated with the study area. Table 3-24 Mammals of the Study area
S.No. Scientifc Name Name IUCN* WPA Schedule
1. Macaca mulatta Bonnet Macaque LC II 2. Semnopithecus entellus Nothern Plains Langur LC II 3. Muntiacus muntjak Indian Muntjac LC III 4. Rusa unicolor Sambhar III 5. Boselaphus tragocamelus Nilgai LC III 8. Sus scrofa Indian Wild Pig LC III 10. Felis chaus Jungle Cat LC II 12. Paradoxurus hermaphroditus Common Palm Civet LC II 13. Viverrricula Indica Small Indian Civet LC II 14. Herpestes edwardsii Grey Mongoose LC II 15. Herpestes auropunctatus Small Indian Mongoose LC IV 16. Hyaena Hyaena Striped Hyaena III 18. Canis aureus Golden Jackal LC II
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19. Vulpes benghalensis Indian Fox LC II 21. Lepus nigricollis Indian Hare LC IV 23. Suncus etruscus Indian Shrew LC - 24. Paraechinus collaris Indian Hedghog LC IV 25. Hystrix Indica Indian Crested Porcupine LC IV 26. Funambulus pennantii Five-striped Palm Squirrel LC - 27. Tatera indica Indian Gerbil LC - 28. Vandeleuria oleracea Indian Long-tailed Tree LC V Mouse 29. Muc musculus House Mouse LC V 30. Mus booduga Little Indian Field Mouse LC V 31. Milardia meltada Soft-furred Field Rat LC V 33. Bandicota indica Large Bandicoot Rat LC V 34. Bandicota bengalensis Lesser Bandicoot Rat LC V 35. Rattus Rattus House Rat LC V 36. Rhinopoma microphyllum Greater mouse-tailed Bat LC - 37. Rhinopoma hardwickii Lesser mouse-tailed Bat LC - 38. Megaderma Iyra Greater False Vampire LC - 39. Rhinolophus lepidus Blyth`s Horseshoe Bat LC - 40. Pipistrellus Coromandra Indian Pipistrelle LC - 41. Pipistrellus tenuis Indian Pygmy Bat LC - 42. Scotozous dormeri Dormer`s Bat LC - 43. Scotophilus heathii Asiatic Yellow House Bat LC - *Conservation status assigned by International Union for Conservation of Nature and Natural Resources (IUCN), where CR – Critically Endangered, EN – Endangered, NA – Not Assessed, LC – Least Concern, NT – Near Threatened and VU –Vulnerable WPA - Wildlife (Protection) Act, 1972 Reference: R. Grimmett, C. Inskipp & T. Inskipp (2011). Birds of the Indian subcontinent. Oxford University Press; the IUCN Red List of Threatened Species, 2016 -02 Species listed in BOLD were sighted in the study area during the survey
Reptiles Lists some species of reptiles associated with the study area are presented in table below.
Table 3-25 Reptiles Associated with Study Area
S.No. Scientific Name Common Name IUCN WPA Status* Schedule
1. Ramphotyphlops braminus Common Worm Snake NA IV 3. Gongylophis conicus Common Sand Boa NA IV 4. Eryx johnii Red Sand Boa NA IV 5. Coelognathus Helena helena Common Trinket Snake NA IV 6. Ptyas mucosa Indian Rat Snake NA II 7. Oligodon taeniolatus Russell`s Kukri Snake LC IV 8. Oligodon arnensis Common Kukri`s Snake NA IV 9. Lycodon sriatus Barred wolf Snake NA IV 10. Lycodon aulicus Common Wolf Snke LC IV
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11. Xenochrophis piscator Checkered Keelback Snake NA II 12. Amphiesma stolatum Striped Keelback NA IV 13. Boiga trigonata Indian Cat Snake LC IV 14. Psammophis condanarus Condanarus Sand Snake LC IV 15. Psammophis leithii Leith`s Sand Snake NA IV 16. Bungarus caeruleus Common Krait NA IV 17. Naja naja Spectacled Cobra LC II 18. Daboia russelii Russell`s Viper LC II 19. Echis carinatus Saw-scaled Viper NA IV *Conservation status assigned by International Union for Conservation of Nature and Natural Resources (IUCN), where CR – Critically Endangered, EN – Endangered, NA – Not Assessed, LC – Least Concern, NT – Near Threatened and VU –Vulnerable WPA - Wildlife (Protection) Act, 1972 Reference: R. Grimmett, C. Inskipp & T. Inskipp (2011). Birds of the Indian subcontinent. Oxford University Press; The IUCN Red List of Threatened Species, 2016 -02 3.8.6. Ecological Important Area Yamuna River Yamuna River falls at the distance of approx. 4.32 km from the site and falls within study area. It is largest tributary of River Ganges. It has a total catchment area of 3, 66,223 km2 spread over seven northern states. Yamuna flows through the states of Uttaranchal, Uttar Pradesh (U.P.), Himachal Pradesh, Haryana, Rajasthan, Madhya Pradesh and the entire state of Delhi. The river supports a rich bio diversity of flora fauna in various stretches, one of the studies has shown that ghariyal are found in the sun near Gohani village, approximately 10km upstream from the Chambal-Yamuna confluence. The gharials (Gavialis gangeticus) are a critically endangered species. Cladocera as the dominant group followed by Rotifera, Copepoda, Protozoa and Ostracoda also found. But over the years the river has become highly polluted. The river water is extensively used for irrigation and receives heavy load of domestic and industrial wastes along its 1200 km journey through the states of Haryana, Delhi and Uttar Pradesh.
Earlier the most polluted stretch of Yamuna was located between Wazirabad in Delhi to Etawah in Uttar Pradesh. Recently the polluted stretch has increased and shifted its starting point to Panipat, Haryana. So 100 Km of polluted stretch has been added.
To save and revive the Yamuna river initiatives has been taken up by govt. like YAP (Yamuna Action Plan) - YAP was formally launched in 1993. The YAP has so far completed two phases as YAP-I and YAP-II. The YAP-I covered Delhi, eight towns in Uttar Pradesh and six towns in Haryana. Under YAP II, emphasis was on the 22-km stretch of Yamuna in Delhi. Now we have YAP-III, phase III of Yamuna Action Plan for Delhi.
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(Sources: http://www.cifri.res.in/b184.pdf,Yamuna cleaning)
3.8.7. Legally Protected areas Some of the legally protected areas fall in study area. They are as follow
Ridge Reserve Forest: Forest is located at the distance of approx. 9 km from the Project Site. It comes under Delhi government. Sometimes simply called The Ridge, is a ridge in the National Capital Territory of Delhi in India. The ridge is a northern extension of the ancient Aravalli Range, some 1500 million years old (compared to just 50 million for the Himalaya). The ridge consists of quartzite rocks and extends from the Southeast at Tughlaqabad, near the Bhatti mines, branching out in places and tapering off in the north near Wazirabad on the west bank of the river Yamuna, covering a distance of about 35 kilometres
3.9. SOCIO-ECONOMIC STUDY This section presents the baseline status of the socio-economic aspects in the Project area and details of the stakeholder consultation undertaken for the project.
3.9.1. APPROACH & METHODOLOGY The methodology adopted for impact assessment is as follows: a) The details of the activities and population structure have been obtained from Census 2011 and analyzed Primary data was collected by a door-to-door survey in urban area and household’s living therein. The data collected during the above survey was analyzed to evaluate the prevailing socio- economic profile of the area. Based on the above data, impacts due to construction operation on the community have been assessed and recommendations for further improvement have been made. Concept & Definition a) Study Area: The study area, also known as impact area has been defined as the sum total of core area/project area and buffer area with a radius of 10 Kilometers from the periphery of the core area/project is. The study area includes all the land marks both natural and manmade, falling herein. b) Household: A group of persons who normally live together and take their meals from a common kitchen are called a household. Persons living in a household may be related or unrelated or a mix of both. However, if a group of related or unrelated persons live in a house but do not take their meals from the common kitchen, then they are not part of a common household. Each such person is treated as a separate household. There may be one member households, two member households or multimember households. c) Sex ratio: Sex ratio is the ratio of males to females in a population. It is expressed as number of females per 1000 males.
91 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC d) Literates: All persons aged 7 years and above who can both read and write with understanding in any language are taken as literate. It is not necessary for a person to have received any formal education or passed any minimum educational standard for being treated as literate. People who are blind but can read in Braille are also treated as literates. e) Literacy rate: Literacy rate of population is defined as the percentage of literates to the total population aged 7 years and above. f) Labour Force: The labour force is the number of people employed and unemployed in a geographical entity. The size of the labour force is the sum total of persons employed and unemployed. An unemployed person is defined as a person not employed but actively seeking work. Normally, the labour force of a country consists of everyone of working age (around 14to 16) and below retirement (around 65) that are participating workers, that is people actively employed or seeking employment. People not counted under labour force are students, retired persons, stay-at home parents, people in prisons and discouraged workers. g) Work: Work is defined as participation in any economically productive activity with or without compensation, wages or profit. Such participation may be physical and/or mental in nature. Work involves not only actual work but also includes effective supervision and direction of work. The work may be part time or full time or unpaid work in a farm, family enterprise or in any other economic activity. h) Worker: All persons engaged in 'work' are defined as workers. Persons who are engaged in cultivation or milk production even solely for domestic consumption are also treated as workers. i) Main Workers: Those workers who had worked for the major part of the reference period (i.e. 6 months or more) are termed as Main Workers. j) Marginal Workers: Those workers who did not work for the major part of the reference period (i.e. less than 6 months) are termed as Marginal Workers k) Work participation rate: The work participation rate is the ratio between the labour force and the overall size of their cohort (national population of the same age range). In the present study the work participation rate is defined as the percentage of total workers (main and marginal) to total population. Findings of the study: Description of the Study Area: The study area of the Proposed Re-development of staff colony by NDMC at Model Town Delhi, Model Town Tehsil of North West district has total population of 595,810 as per the Census 2011. Out of which 319,197 are males while 276,613 are females. In 2011 there were total 121,110 families residing in Model Town Tehsil. The Average Sex Ratio of Model Town Tehsil is 867.As per Census 2011, all of the population of Model Town Tehsil lives in rural areas. The average literacy rate in rural area is 83.9% and the sex ratio of Model Town Tehsil is 867.The population of Children of age 0-6 years in Model Town Tehsil is 69702 which is 12%
92 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC of the total population. There are 37368 male children and 32334 female children between the ages 0-6 years. Thus as per the Census 2011 the Child Sex Ratio of Model Town Tehsil is 865 which is less than Average Sex Ratio ( 867 ) of Model Town Tehsil. The total literacy rate of Model Town Tehsil is 83.93%. The male literacy rate is 78.03% and the female literacy rate is 69.59% in Model Town Tehsil. As per Census 2011, there are total 121,110 families under Model Town Tehsil living in urban areas while 121,110 families are living within rural areas. Thus around 100% of total population of Model Town Tehsil lives in urban areas while 0% lives under rural areas. Population of children (0 - 6 years) in urban region is 69,702 while that in rural region is 0.In Model Town Tehsil out of total population, 201,062 were engaged in work activities. 96.5% of workers describe their work as Main Work (Employment or Earning more than 6 Months) while 3.5% were involved in Marginal activity providing livelihood for less than 6 months. Of 201,062 workers engaged in Main Work, 215 were cultivators (owner or co-owner) while 683 were Agricultural laborer.
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Chapter-4. IMPACT ANALYSIS AND MITIGATION MEASURES This chapter discusses various environmental and social impacts that have been identified, predicted and quantified during the course of this study. These include positive and negative, direct and indirect, local and regional and also reversible and irreversible impacts due to project construction and operation. The impact assessment forms the basis for development of Environmental Management Plan. The potential impacts during construction phase and operation phase of the project have been identified and discussed, along with the suggested mitigation measures in following sections,
4.1. IMPACT APPRAISAL CRITERIA The criterion which has been employed to appraise impacts on various social and environmental components is as presented as Table 4-1 below
Table 4-1 Impact appraisal criteria
Criteria Sub - Defining limit Remarks Classification Insignificant/l Impact is restricted except for ecology ocal spread within the foot prints (which is defined as of the Project limited loss of vegetation boundary only at site) Medium Impact is spread up to except for ecology Spread: refers to area spread 3 km from the (which is defined as loss of of direct influence boundary of the vegetation at site including from the impact of a Project large trees with limited particular project disturbance to adjoining activity. flora & fauna) High spread Impact is spread up except for ecology beyond3 km from (which is defined as footprint boundary loss of vegetation at site of the Project and/or damage to adjoining flora and fauna Insignificant / Impact is likely to be the anticipated recovery of Duration: based on Short restricted for duration the affected environmental duration of impact and Duration of less component within 2 years the time taken by an than 2 years; environmental Medium When impact extends With an anticipated component to recover Duration up to five years recovery of the affected
94 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC back to its best possible environmental component pre-project state within 6years Long duration when impact extends With anticipated recovery beyond five years; of prevailing condition to happen within 6 years or beyond or upon completion of the project life. Insignificant when resulting in However, it shall be intensity changes in the reconsidered where the environmental baseline values are already baseline conditions is high. up to 10% Low intensity when resulting in for ecology it refers to changes in the minimal changes in the baseline conditions up existing ecology in terms to20% of their reproductive capacity, survival or Intensity: defines the habitat change magnitude of Impact Moderate when resulting in for ecology, it refers to intensity changes in the changes that are baseline conditions for expected to be recoverable up to 30% High intensity when change resulting While for ecology, high in the intensity refers to changes baseline conditions that result in serious beyond destruction to species, 30% productivity or their habitat.
Nature: refers to Beneficial Useful to Environment whether the effect is and Community considered beneficial or Adverse Harmful to Environment adverse and Community A significance assessment matrix was developed to assess the impact based on the appraisal criteria developed above which is as given in Table 4-2.
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Table 4-2 Impact significance criteria
Spread Duration Intensity Overall significance Adverse Beneficial Local Short Low Insignificant Insignificant Local Short Moderate Minor Minor Local Medium Low Local Medium Moderate Medium Short Low Moderate Moderate Local Long Low Local Short High Local Medium High Local Long Moderate Medium Short Moderate Medium Medium Low Medium Medium Moderate Medium Long Low Medium Long Moderate High Short Low High Short Moderate High Medium Low High Medium Moderate High Long Low Local Long High Major Major Medium Short High Medium Long High High Short High High Medium High High Long Moderate High Low Low High Low High
The reversible and irreversible nature of impacts will also be considered. Any minor or moderate impact of irreversible nature will be considered as a moderate and major impact. The impacts for the proposed project are covered under the following subsections: Construction Phase Operation Phase
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Table 4-3 Impact identification matrix for the redevelopment of proposed site
MAIN ACTIVITIES ENVIRONMENT AND SOCIAL COMPONENTS
use
Soil
noise
Social
Water Water
OHAS
quality quality
pattern
Ecology
resource resource
ransport
Ambient Ambient
aesthetic
Traffic/t
Land
air quality CONSTRUCTION PHASE Construction activity
Site Clearance √ √ √ √ √ Excavation √ √ √ Transportation & Unloading of construction √ √ √ material
Storage and Handling of construction material et. √ √ Preparation/Mixing of construction material √ √ √ √ √ Operation of construction machinery √ √ √ √ Construction and Erection of buildings √ √ Operation of DG sets √ √
Handling and Disposal of construction wastes √ √ √ √ Requirement of utilities such as water, power, √ √ √ √ √ sanitation facilities
Labour engagement Employment of workers
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Water requirement √ Power requirement √ √ Waste handling and disposal √ √ Sewage disposal √ √ OPERATIONAL PHASE
Employment of labours and staffs √ √ Water requirement √ Power requirement √ √ Waste handling and disposal √ √ √ Sewer Generation √ Operation of DG sets for power backup √ √ Vehicle Movement within the site √ √ √ √
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4.2. IMPACT DURING CONSTRUCTION PHASE The activities that take place during construction phases of the project are site clearance, operation of machineries, transportation and unloading of materials, demolition of existing structures, construction and erection of buildings. During construction phase, the potential primary and secondary impacts on the environment, their significance and mitigation are discussed in the following sub-sections. It is likely that the following parameters will be impacted:
· Land Environment · Air Quality · Ambient Noise Quality · Water Resources and Quality · Biological Environment · Soil · Traffic &Transport · Solid Waste · Livelihood · Socio-Economic Environment · Occupational Health and Safety
4.2.1. IMPACT ON LAND ENVIRONMENT Some of the anticipated impacts on the land environment due to the project are:
Change in Land use and Aesthetics: The proposed project is to be developed in an area of 9.51 hectare. The site was and has been designated for residential use as per the Delhi Master Plan 2021. The project will involve construction of roads and other infrastructures, green areas, open spaces, commercial spaces etc. With these upcoming structures, it is expected that the land use pattern of the area will be enhanced without compromising on the socio-economic status of the local people. The site is located in an urban landscape. The development of the project will lead to a positive change in aesthetics and visual appeal of the region. Change in Topography: The site comprises of flat land with gentle slope towards south east. The construction activities such as excavation works for foundations of various project-components, development of drains and erection of the associated structures and buildings will slightly change the topography of the area. However as the land is relatively flat, hence no major change is envisaged. Mitigation Measures Cutting and filling operations will be limited, only as and when necessary.
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During excavation works, the topsoil will be preserved in stockpiles. At such locations, the depth of borrow pits shall not exceed 45 cm and it may be dug out to a depth of not more than 30 cm after stripping the 15 cm top soil aside The movement and parking of heavy machinery and other vehicles will be restricted to identified routes; thereby limiting the possibility of compaction. The project will ensure that the existing elements of the natural environment (ponds, trees etc.) are integrated in the urban design. Natural features will be maintained, preserved and further developed. An attempt should be made to preserve, establish and promote a vegetative cover, appropriate to the site prior to the onset of intense rain or windstorms. Good housekeeping at labour resting areas and the construction area will ensure the aesthetics of the area. All debris and excavation material will be stored securely and removed within a stipulated period. Proper routing and adequate capacity of the storm water run-offs drains/garland drains with catch pits will be provided at the construction areas to collect the construction waste water/runoff. Significance of Impact The overall impact is assessed to be moderate, however with the implementation of mitigation measures the impact can be contained with minor residual impacts. Table 4-4 Impact significance -Land Environment
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL
Without Moderate Medium Moderate Moderate Mitigation Land Environment With Local Medium Low Minor Mitigation
4.2.2. IMPACT ON AMBIENT AIR QUALITY
During the construction phase, the major pollutant of concern will be particulate matter (PM10 and PM
2.5).The dust emissions will vary substantially from day to day based on the level of activity, the specific operations and the prevalent meteorological conditions. The construction activities will involve:
• PM emissions from excavation activities;
• NOx, SO2 and CO emissions due to operation of construction equipment’s, machinery and vehicular movement.
• PM, NOx, SO2 and CO emissions from operation of Diesel generator set. The excavation activities for the Project shall be carried out in phases. Power shall be sourced from the grid during the construction activities; 250 KVA x 4 Nos, of capacity will be used for power back-up.
115 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Anticipated Impact Dust generated by various construction site activities can make a significant contribution to local air pollution. High levels of dust, combined with other outdoor air pollutants, can cause respiratory problems. Dust also reduces visibility, dirties clothing and buildings, and increases the rate of corrosion. The construction activities and machine operation during the construction phase shall lead to temporary impact on vicinity, as the current ambient air quality parameters have high values then permissible limits however good site practices are the major mitigation measures for prevention or minimization of air pollution from construction activities. Mitigation Measures Dust Control Measures • The humus rich top soil shall be removed and stored in an appropriate manner prior to excavation so that the original soil-profile can be restored while relocating it. • Wet suppression shall be applied to at least 80 percent of disturbed surface areas on a daily basis especially during dry and windy days. • Downwash of trucks (especially tyres) shall be done prior to departure from site to reduce the mud and dirt carryout. • The vehicle speeds on unpaved roads shall be restricted 25 kmph. • Limited vehicular movement shall be permitted on disturbed soils. • Contractors shall be required to maintain valid PUC – Pollution under Control certificates and to maintain proper maintenance records for their fleet. • During material handling, the materials should be dropped from a low height in order to reduce any fugitive dust emissions. • All areas for storing C&D wastes / construction material shall be demarcated and preferably barricaded particularly those materials that have potential to be dust borne. • Dry sweeping of work areas shall be prohibited • Haul trucks should be covered with suitable covering material like tarpaulin sheets to prevent fugitive emissions during transportation of construction materials. Fuel Emissions Control • DG sets will be used as a backup source only; • DG sets will be regularly maintained to comply with emission norms; • The stack height for DG sets shall be provided as per the CPCB norms; Significance of Impact The overall impact is assessed to be moderate, however with the implementation of mitigation measures the impact can be contained with minor residual impacts.
116 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Table 4-5 Impact significance- Ambient Air Quality
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL
Without Mitigation Moderate Medium Moderate Moderate
Ambient Air Quality With Mitigation Local Medium Low Minor
4.2.3. IMPACT ON AMBIENT NOISE QUALITY Sources of Noise Pollution during Construction Phase During the construction phase of the site, the sources of noise pollution are expected mainly from: Construction equipment and machinery engaged for construction activities (such as excavation, grading, erecting equipment, piling, etc) such as air compressors, backhoe, concrete mixer, concrete mixer, cranes, dump-truck, pile driver, and radial arm saw, DG set etc. The operation of heavy equipment is likely to temporarily increase the ambient noise levels of the area. An increase of 1 to 3 dB (A) noise levels of is expected in the adjoining area during day time during peak construction activities. Anticipated Impact Noise generated can cause disturbance to the local population and can even lead to sleep disorder. Workers working close to high noise area can be exposed to occupational hazards of noise depending on the duration of exposure. Mitigation Measures The project will ensure that the EPC contractors should implement the following: The construction areas shall be provided with sheet barriers or temporary walls along the boundary close to any habitations; Rubber padding shall be provided in the construction machinery for vibration control; No noise generating activity shall be permitted from 22:00P.M-6:00 AM. The EPC contractors will adopt measures such as regular maintenance of its vehicles and repair of its equipment/ machinery. Construction workers working near high noise generation shall be provided with ear plugs/ ear muffs to limit exposure to occupational hazards. Significance of Impact The overall impact on the noise quality is assessed to be moderate. It is assessed that with implementation of suggested mitigation measures the overall impact can be maintained as minor.
117 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Table 4-6 Impact significance- ambient noise quality
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL
Without Mitigation Moderate Medium Moderate Moderate Ambient Noise Quality With Mitigation Local Medium Moderate Minor
4.2.4. IMPACT ON WATER RESOURCE AND QUALITY The potential impact on water resources and quality from the construction phase of the project arises from the following: Water usage The water requirement for the construction phase will include water for construction activities such as dust suppression, curing and formation of concrete mixtures and water for domestic consumption. The water required for both domestic purpose and construction activities will be sourced from DJB through water tankers while drinking water for the labourers will be supplied through packaged drinking water cans. Sediment run off from construction area Waste water generated from the site during the construction contains suspended materials, spillage and washings from the areas that may percolate in the ground or get mixed with the sewage water. The construction activities will result in disturbance of topsoil rendering it vulnerable to erosion and runoff. The potential impact on water quality can be due to the runoffs from the site which can lead to contamination of adjoining land and ground water. Unplanned disposal of sewage from construction camps
It is expected that during construction phase there will be generation of sewage from portable toilets. About 27 m3/day of sewage is expected to be generated due to working of 550-600 labours at the construction campsite. Improper disposal of sewage can also lead to contamination of nearby water sources. Mitigation Measures Following mitigation measures are suggested: Water Consumption Awareness on optimal water consumption shall be provided to the labourers. Concrete structures shall be sprayed with water to allow curing and reduce flowing away of water. After curing, the concrete structures shall be painted with curing chemical to reduce further dependence of water for curing.
118 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Effluent/Sewage Disposal To minimise adverse impacts due to the discharge of untreated sewage outside the project site, adequate number of portable toilets, soak pits shall be provided onsite for disposal of sewage as per the design aspects of Bureau of Indian Standards; The workers shall be strictly instructed and informed to avoid random disposal of wastewater. Construction Wastewater Management Avoid excavation during monsoon season; To prevent the runoff from stockpiles generated during excavation, garland drains shall be constructed; Segregation and pre-treatment of oil and grease containing effluents from machinery (e.g. use of a grease trap)shall be undertaken prior to discharge into sewer systems; Silt fencing shall be provided to protect the water quality in the nearby water bodies from sediments. Significance of Impact The overall impact on the water resources is assessed to be moderate, however with the implementation of mitigation measures the impact can be maintained as minor.
Table 4-7 Impact significance Water resources
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL
Without Mitigation Moderate Medium Moderate Moderate Water resource and With Mitigation Local Low Moderate Quality Minor
4.2.5. IMPACT ON ECOLOGY The site area is a flat land with tree cover and vegetation along with residential areas at/ around the site. The survey-area (extending up to 10 km from the boundary of the project site) consists of open forest, with much of the land converted into non forest area and occupied by habitations. In core zone, around 600-800 trees have been found however in buffer zone site is having ecological important area i.e. central ridge forest, Some of the anticipated impacts on the ecological environment due to the project during construction phase are: Species identified in the survey area will be temporarily affected and may be migrated to nearby areas. However, the degree of impact will be low as the disturbance is going to confine to the construction period only.
119 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
The project construction activities will necessarily comprise of removal of vegetation and tree cover. Translocation of 623 trees on the site will involve temporary removal of local floral species found on the site. Air, noise and visual disturbance generated during the site development can affect the behavior of fauna (especially bird, butterflies and other insects, reptiles and very small mammalian species) within and also the nearest adjacent habitats. Mitigation Measures The following mitigation measures need to be put in place address the potential impacts on ecology due to construction activities:
The plantation should undertake to mitigate natural vegetation loss and all new plantation undertaken in the project area will involve only native species. Every care will be taken to prevent the introduction of any alien species into the project area. The construction contractors shall be instructed to avoid removal of any natural vegetation to the maximum extent possible; Tree cutting will be done systematically, depending on the area of construction. A pile of brash and logs in the area shall be kept to develop alternate habitat in the area. No hunting activity shall be permitted within and around the project area and strict guidelines will be given to contractors to ensure that such activities are not practiced; In case of any wildlife being spotted within the project site, trained personnel from the Forest Department and Wildlife Warden’s office and approved experts shall be intimated for rescue of the wildlife; The project activities shall ensure measures as suggested for ambient air quality and traffic and transport of material so as to minimize impacts on the ecology of the site and its surroundings; Levels of noise shall be maintained at a minimum during construction activities. Cutting or lopping of trees shall be avoided. Mature trees and standing trees should not be cut to the extent possible. The construction contractors will be instructed to provide fuel for any heating requirements at site and not to use firewood from adjoining areas. Significance of Impact The overall impact on the ecology is assessed to be moderate. It is assessed that with implementation of suggested mitigation measures the overall impact on ecology can be maintained as minor.
120 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Table 4-8 Impact significance-Ecology
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL
Without Mitigation Regional Medium Moderate Moderate
Ecology With Mitigation Local Medium Moderate Minor
4.2.6. IMPACT ON SOIL QUALITY The project site has dominant soil texture of sandy clay loam. During the construction phase, demolition of existing buildings and creation of new blocks shall be done, for their construction heavy machinery shall be used During the construction phase total excavated soil qty is approx. 1,60,000 cum, the excavation of foundations and basements shall be done. So the anticipated impact on soil quality shall be as follow Anticipated Impact Installation of heavy construction machinery causing soil compaction: Movement of heavy vehicles and machinery on unpaved surface can result in compaction of soil which can increase the run off potential thereby decreasing the possibility for recharge. The compaction of soils in the areas meant for temporary uses can render the area less fertile. Soil Contamination: Potential contamination of soil may occur due to accidental spills of lubricating oil, fuel oil, paint, thinner during their handling and storage Soil Erosion: Erosion of the top soil may result from exposure of loose soil surfaces to rain and wind during site clearing, earth moving, and excavation activities. The loss of top soil may result in lack of good soil for landscaping and greenbelt development in the later stages Waste Management: The construction phase will involve generation of construction waste/ debris, waste oil and chemicals from construction machinery and domestic solid waste from campsite etc. The construction phase will involve generation of construction and demolition waste/ debris, waste oil and chemicals from construction machinery and domestic solid waste from campsite etc. There is potential for spread of construction waste to areas outside the construction site and contaminate wells, soil etc. if adequate management measures are not put in place. Table 4-9 lists various C&D waste generated during construction phase. Table 4-9 Quantification of different construction waste generated
S.No. Constituents Quantity of Waste generated (tones/annum) 1. Soil, sand and gravel 4.2-5.14 2. Bricks and Masonry 3.6-4.4
121 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
3. Concrete 2.4-3.67 4. Metals 0.6-0.73 5. Bitumen 0.25-0.30 6. Wood 0.25-0.30 7. Others 0.1-0.15 http://www.tifac.org.in/offer/tlbo/rep/TMS150.htm
S.No. Constituents Built up area to be demolished 1. Concrete, RCC, brick work, flooring, and Approximately 14,782.63 Sq. Mtr of area will water supply pipes, sanitary installation, be razed. Which includes existing quarters rainwater pipes with fittings and fixtures. plumbing lines, toilets, sub stations etc.
Mitigation measures Soil Management Topsoil (upper 30 cm) shall be removed prior to commencement of bulk earthwork and reused later for landscaping purpose .This is done to ensure that the good quality top soil is not lost; Minimum clearance of trees shall be carried out and the vegetative cover shall be redeveloped wherever possible; The excavated soil material shall be stacked in earmarked areas only; Excavated soil shall be used/transported at the earliest for filling low lying areas at the site; It will be the responsibility of the Contractor to get the permission for yard for dumping the surplus excavated earth from local authority Soil Erosion Control Measures Major activities pertaining to site grading and excavation for foundation and backfilling shall be avoided during monsoons and shall be planned for dry season. Retention wall or bund shall be provided around the storage areas for excavated soil and other construction material to check the flow of sediments with storm water in case of rain; Completed earthworks shall be re-vegetated as soon as possible Soil Compaction Movement of heavy machinery in the site area shall be restricted to minimize the possibility of compaction; Prevention of Contamination by Waste Management Construction and Demolish Waste Excavated materials shall be used for backfilling material in other locations simultaneously;
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Construction wastes from site such as metal cuttings debris, plastic packing material, wooden logs etc will be segregated and kept in specially identified waste bins. The recyclable items like metal and plastic shall be stored separately and sent to recyclable industry Potentially hazardous waste shall be segregated from non-hazardous construction site debris. The contractor shall educate the workers and subcontractors about hazardous waste storage and disposal procedures; C& D Management rules 2016 shall be followed strictly. The EPC contractor shall be responsible for the collection, segregation and transportation of the left over C&D waste to the Recycling plant. Significance of Impact The overall impact on the soil resources is assessed to be moderate. It is assessed that with implementation of suggested mitigation measures the overall impact on soil resource can be maintained as minor
Table 4-10 Impact significance-Soil Resource
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL Without Mitigation Regional Medium Moderate Moderate Soil Resource With Mitigation Local Medium Moderate Minor
4.2.7. IMPACT ON TRAFFIC AND TRANSPORT The construction phase will entail transportation of construction materials and movement of labour. It is expected that, adjacent road will be mainly used for this purpose, the other important roads that will be used for transportation are: The potential impact due increase in traffic and transportation during construction phase would be: Increased potential for traffic hazards on the adjacent roads of the area, due to the construction activities. The condition of roads may deteriorate during the construction phase due to frequent movement of heavy vehicles and equipment. Disruption of traffic is anticipated on connecting roads due to unplanned entry to the site, parking of trucks, breakdowns, etc. Mitigation measures The movement of traffic entering the site shall be properly managed so as to cause minimum problems to local users on this road;
123 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
The EPC contractors will undertake consultation with local Police prior to movement of the construction traffic particularly for the movement of heavy machinery; The construction vehicles shall be allowed to move in the site only through exclusive entry and exit points; Adequate training shall be given to the drivers of construction vehicles for speed restrictions; and Roads damaged due to project vehicle shall be repaired and maintained at regular intervals during the construction period. Transportation movement shall be done during non-peak hours. Significance of Impact The overall impact on the traffic and transportation is assessed to be moderate to high. It is assessed that with implementation of suggested mitigation measures the overall impact can be maintained as moderate. Table 4-11 Impact significance- Traffic and Transportation
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL
Without Mitigation Regional Long High Major
Traffic and Transport With Mitigation Local Long Moderate Moderate
4.2.8. IMPACT ON SOCIO ECONOMIC ENVIRONMENT Proposed project shall be re developed for the government employees residing in Model Town colony, so the population shall get relocated in nearby govt flats for meanwhile. Total 512 families will get re locate.
The construction activities might bring about certain impacts which might affect the population in nearby villages. The impacts enlisted below are limited to construction phase only and can be mitigation by implementing proper measures, as mentioned in the later section. The construction activities and big machineries which will be operated in the construction phase are bound to generate a higher decibel of noise which might disturb the local adjoining residential area for a very short duration. In addition, during the operation phase, the vehicular movement of buses and cars will also tend to create higher noise exposure in the surrounding villages. With the commencement of construction activities, accumulation of water in the dugout areas of the site might result in being breeding place for mosquito breeding and spread of vector borne diseases.
124 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Once the construction activities commences, problem of traffic congestion in the area might arise because of movement of heavy vehicles, to and fro from the site. Mitigation measures The following mitigation measures can be implemented to counter the probable impacts that might emerge: Locals from nearby areas will be engaged in all construction activities and during the operation phases, as per their skill set, to supplement their income. Once the construction activities commences, care should be taken that drivers will valid licenses should only operate vehicles hauling the big machineries. A speed limit should be determined and followed for all vehicles passing that particular route. The operations of big machines will be restricted to day time only No noise generating activity will be permitted from 22:00P.M-6:00AM ;To minimize adverse impacts due to the discharge of untreated sewage outside the project site, adequate number of portable toilets, soak pits shall be provided onsite for disposal of sewage. The project will ensure that the existing elements of the natural environment (ponds, trees etc.) are integrated in the urban design. Natural features will be maintained, preserved and further developed. Preference of giving the locals from the area an opportunity of being hired in various jobs that might emerge during the course of the project activities should be made available.
4.2.9. IMPACT ON OCCUPATIONAL HEALTH & SAFETY The workers engaged in construction activities will be exposed to occupational health and safety hazards and risks. Falls from elevation associated with working with ladders, scaffolding, and partially built or demolished structures are among the most common cause of fatal injury at construction sites. Construction activities may also pose significant hazards related to the potential fall of materials or tools, as well as ejection of solid particles from abrasive or other types of power tools which can result in injury to the head, eyes, and extremities. The workers will also be exposed to temporary hazards such as physical contact, spills, dust, emissions, and noise due to vehicular movement and use of lifting equipment in the movement of machinery. The key health and safety concerns associated with construction activities are: Injury due improper handling, operation and execution Occupational hazards like high noise, electric shocks etc. Trip and fall, inadequate fall safe arrangements Diseases from unhygienic surrounding Exposure to hazardous substances etc.
125 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Mitigation measures The contractor will ensure that: The construction staff and contractors involved in the construction activities shall be trained on the necessary precaution and safety practices prior to commencement of construction activity The necessary safety measures shall be taken up before and during the construction activities for all electrical driven machinery A work permit system shall be implemented for all works related to working at heights (typically when working over 2m and above) .All works related to working at heights shall be undertaken only during the daytime when sufficient sunlight is available; Workers shall be provided with required PPEs to be used at site; All excavation activities shall be conducted in supervision of the site contractor; Proper signage shall be provided in places of excavated areas; Storage of explosives and blasting activities (if required) shall be undertaken as per the requirements of PESO and established good practices. The switchyard building and transformer areas shall be provided with adequate fire extinguishers and sand buckets at all strategic locations to deal with any incident of fire; Significance of Impact Table 4-12 Impact significance-Occupational Health & Safety
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL Without Regional Medium Moderate Moderate Occupational health Mitigation and safety With Local Medium Moderate Minor Mitigation
4.3. IMPACT DURING OPERATION PHASE During operation phase, the potential primary and secondary impacts on the environment, their significance and mitigation are discussed in the following sub-sections. It is likely that the following parameters will be impacted: Land Environment Air Quality Ambient Noise Quality Water Resources and Quality Ecology Solid Waste Management Traffic &Transport
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Socio-Economic Environment
4.3.1 IMPACT ON LAND ENVIRONMENT Some of the anticipated impacts on the land environment due to the project are: Change in Runoff and Drainage pattern: With the development of the project, pervious vegetative area will be replaced by impervious and paved surfaces leading to lesser infiltration and thereby increased runoff. This can lead to more localized flooding. Potential Loss of Green spaces: Concreting of the huge land area would reduce the natural greenery of the area. However, the large landscaping planned and suggested in the Master plan for the project, would compensate for this loss. Mitigation measures Bios wales shall be developed on the green areas in order to reduce surface runoff and enhance infiltration and groundwater recharge. Bios wales are conveyance systems carrying storm water runoff that provide an alternative to storm sewers. They improve the water quality by infiltrating the first flush of storm water runoff and filtering the large storm flows; They consist of a shallow channel with gently sloped sides and filled with deep-rooted native plants. Bios wales utilize existing natural drainage for maintaining the flow of water they convey. Once established, they require less maintenance than turf grass because they need less water and no fertilizer.
Significance of Impact Table 4-13 Impact significance-Land Environment
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL Without Mitigation Regional Medium Moderate Moderate Land Environment With Mitigation Local Medium Moderate Minor
4.3.2 IMPACT ON AIR ENVIRONMENT A site–specific baseline air quality monitoring program was conducted for the existing project site and the results are briefed in above section 3.4. Existing baseline condition reveals that
concentration of CO, NOx, SO2 are below the prescribed limits by NAAQS. However,
3 3 concentrations of PM10 and PM2.5 exceed the limits by NAAQS of 100μg/m and 60μg/m respectively. High levels of concentration as evaluated from baseline monitoring are due to prevailing smog in the city which has been formed by burning of crop residue. The major impacts on ambient air could be vehicular emissions from increase in traffic volume and emission from power backup/ DG sets.
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It is proposed that power will be mainly supplied from the BSES; however scenarios of power failures are expected during operation phase of the project. Diesel generator sets have been proposed to provide the power back up for the proposed facility. All the above activities will generate emissions and may affect the local air quality.
Mitigation measures Power backup Supplies The DG sets shall be provided for power back up in case of any power failure. Following precautionary measures shall be taken care of: DG sets shall be located downwind of the residential areas; Stack heights for DG sets shall be maintained as per CPCB/ MoEFCC norms; Vehicular Emissions Vegetative barriers in the form of green belt shall be provided around the project complex which will minimize the built up of pollution level by acting as pollution sinks. Only CNG using public vehicles shall be allowed to ply on the site Significance of Impact The overall impact on ambient air quality is assessed to be moderate. It is assessed that with implementation of suggested mitigation measures the overall impact on ambient air quality can be maintained as minor. Table 4-14 impact significance -ambient air quality
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL Without Medium Medium Moderate Moderate Mitigation Air Environment With Local Medium Moderate Minor Mitigation 4.3.3 IMPACT ON NOISE ENVIRONMENT Noise level survey was carried out with respect to the proposed project in order to assess the background levels. The noise levels at 5locations within the radius of 5 km of the project area conform to the standards prescribed by CPCB for residential zones. The proposed development will involve activities that will generate noise. The major activities which can emit noise are as follows: Increase in traffic along the road due to the proposed site will increase the noise level at intersections and highways. Mitigation Measures DG sets shall be provided with acoustic enclosures; Trees with heavy foliage shall be planted as vegetative barriers to minimise the noise pollution Traffic analysis shall be done and better alternatives should be found.
128 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Significance of Impact The overall impact on the noise levels in the area will be moderate with the commissioning of the operations and increase in traffic ; however with the implementation of suggested buffer areas, green barriers and attenuation measures the overall impact can be maintained as moderate to Minor.
Table 4-15 Impact Significance -Ambient Noise Quality
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL Without Local Long Moderate Moderate Noise Mitigation Environment With Local Medium Low Minor Mitigation 4.3.4 IMPACT ON WATER ENVIRONMENT The project will use water from the allocated underground reservoirs of Delhi Jal Board to meet the requirement for residential development as per Delhi Master Plan 2021.No ground water usage will be made for any of the activities. The recycled water will be used for the non-potable water requirements of the site such as flushing and DG cooling. The use of treated wastewater to meet the water requirements for the project shall reduce the stress on the water resources in the region. The entire treated wastewater shall be reused and there will be no discharge of untreated sewage on land or in any surface water body. With the project proposing to implement the rainwater harvesting for the ground water recharge, conservation through awareness programs to bring about greater water efficiency, and reuse of treated wastewater on the proposed site during operation of the project for use in horticulture and other auxiliary purpose, the impact on water resources would be minimized.
Mitigation Measures Water Conservation The following measures are recommended to reduce the water usage: Water meters conforming to ISO standards shall be installed at the inlet point of water uptake and the discharge point to monitor the daily water consumption and identify leakages if any. In charge shall be responsible for carrying out systematic leak tests all year round; Appropriate flow restrictors shall be installed for economizing on water consumption. The flow restrictors shall be typically sized for following discharge:
Flushing 3/6LPF
Wash Basin 8.3LPM
Shower 9.5LPM
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Kitchen Sink 9.5LPM
Urinal 2LPF
* LPF= liters/flush, LPM-Liters/min
Source: EIA manual for large construction projects, MoEF&CC
Efficient Water saving devices/ fixtures shall be installed in kitchens and toilets to reduce the water consumption per flush. Dual flush systems can be installed to allow different quantities of water for flushing of solids and liquids. Dual plumbing shall be made installed to segregate the fresh water use with supply of recycled water for non-potable water requirements such as flushing, horticulture, etc. The location of harvesting structures should be such that it is not exposed to any hazard of water contamination from any other sources. Wastewater Management Water Conservation In charge shall periodically monitor the quality of rainwater to be used for landscaping. Water used for landscaping should conform to the BIS irrigation standards Parameters Values TDS (mg/l) 2100 Chlorides as chlorine(mg/l) 500 Boron(mg/l) 2 Sulphates(mg/l) 1000 Conductivity(us/cm) 2.25 pH 6-8
Before the onset of rainy season, the rain water storage tank should be flushed off all the sediments and debris. The water used for cooling purpose (recycled water) shall be tested for hardness. It is recommended that water with hardness less than 50ppm shall be used for air conditioning applications. The STP In charge should analyse the quality of treated water before using it for cooling purpose in order to prevent any scale formation or corrosion. The water supply and wastewater lines shall be colour coded to differentiate; Significance of Impact The overall impact on the water resources and quality is assessed to be minor considering the existing allocation and zero discharge of wastewater.
130 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Table 4-16 Impact Significance –Water resource and quality
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL
Water Without Mitigation Local Long Moderate Moderate Resource and With Mitigation Local Medium Low Minor Quality
4.3.5 IMPACT DUE TO SOLID WASTE MANAGEMENT The project will generate approximately 6.59 TPD of MSW per day during operational phase. The potential impacts associated with disposal of solid waste include the following:
Inadequate collection and treatment of municipal solid waste can lead to unhygienic conditions leading to spread of diseases and other vectors Improper transportation of municipal solid waste may lead to generation of odour; The accumulation of waste along streets can clog drains and cause localized flooding; Mitigation Measures An integrated solid waste management will be put in place for collection, transport, treatment and disposal of solid waste generated from the activities; Municipal solid waste Management and handing rules, 2016 shall be followed. The e-waste generated shall be sold to authorised recyclers in accordance with e-waste Management Handling Rules, 2016. The recyclable waste like glass, metal, plastics, paper etc shall be collected separately and sold to authorized recyclers/ vendors. An onsite organic waste convertor has been planned in approx. 1000 m2 area inside project premises for processing of kitchen and garden waste Significance of Impact The overall impact of the solid waste generated from the commissioning of the project is moderate; however with the implementation of suggested collection, treatment and disposal measures the overall impact can be maintained as minor.
Table 4-17 Impact Significance –Solid waste management ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL Without Mitigation Local Long Moderate Moderate Solid Waste With Mitigation Local Long Low Minor
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4.3.6 IMPACT ON TRAFFIC & TRANSPORT ENVIRONMENT A well planned transport infrastructure with adequate public transport infrastructure already exists near the area, the details for the same have been provided in chapter two of the report. The potential impacts on traffic and transport for proposed project include the following: Increase in traffic volume due to proposed developments and likelihood of congestion on the existing and proposed road network; Random parking of vehicles and unplanned loading/ unloading areas can lead to confusion. Mitigation Measures Traffic Analysis: This includes various transport improvement strategies and proposed alternatives keeping in mind the vehicular density of the area surrounding project site, Alternatives are proposed in order to reduce the traffic congestion due to goods and passenger movement on the roads connecting to the project site. In order to accommodate the increased traffic, following measures have been suggested: Traffic diversion shall be encouraged by proposing alternate routes. Hierarchy in roads should be adopted to segregate the traffic according to the size, frequency and density of traffic. Comprehensive traffic and travel surveys shall be conducted every 5 years to monitor traffic characteristics and travel behavior to develop strategies for effective transportation. Planning of pedestrian facilities: Pedestrian facilities shall be planned for movement of pedestrians on all major corridors and junctions in the study area. The pedestrian facilities which shall be provided for the safe movement of pedestrians are Footpaths along the road Zebra markings Grade-separated pedestrian facilities viz. subways and pedestrian over-bridge for across movement of pedestrian. Pedestrian Guard Rails, Road safety Signage and overhead signs shall be placed on a structurally sound gantry or cantilever structure made of circular pipes or steel sections Parking demand management: The parking facilities shall be developed as per the guidelines and provisions. Significance of Impact The overall impact on the Traffic in the area will be moderate as the future traffic projections are considered in planning roads and RRT; timely implementation of suggested roads infrastructure and management measures can maintain the impact as moderate
132 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Table 4-18 Impact Significance –Traffic
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL
Without Mitigation Local Long High High Traffic With Mitigation Local Medium Moderate Moderate
4.3.7 IMPACT ON SOCIAL ECONOMY AND LIVELIHOOD Once project becomes operational, certain impacts might emerge which will affect the local population positively. The anticipated impacts have been given below: With the onset of new project activities, employment opportunities might increase among the local population. The unskilled local population of the adjoining areas will find job opportunities as drivers, security guards, cleaners, housekeeping etc. which will improve their economic condition. With the execution of the project, there will be more transport facilities plying to the area thus, benefitting the population living in the area in the long run.The expected improvement of the following public amenities in the area due to project development. Improve building structures with Green building concepts Proper garbage disposal system; smooth traffic movement; Aesthetics of the surroundings will improve. Establishment of proper connectivity of internet facilities in the area; Significance of Impact The overall impact on socio-economic scenario will be positive which when coupled adequate management measures can improve the economic scenario of the region with a moderate to high intensity of change. Table 4-19 Impact Significance –Socio-economic Environment
ASPECT SCENARIO SPREAD DURATION INTENSITY OVERALL Socio- Without Mitigation Local Long Moderate Moderate Economic With Mitigation Local Long High High Environment
133 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Chapter-5. ANALYSIS OF ALTERNATIVES (TECHNOLOGY AND SITE) 5.1 INTRODUCTION
This chapter presents a comparative analysis of various alternatives considered to avoid or minimize the impacts that would be inevitable in technically advanced processes. Screening procedure for the alternatives considered is discussed in the following sections. The consideration of alternatives to a proposal is a requirement of the Environmental Impact Assessment (EIA) report. Alternative site selection has involved some analysis methods. Different criteria’s are used and followed to select the alternative site. Finalization of various options such as construction materials, keeping in view of the essential points and environmental safety aspects and well connectivity to Railway network, Road network, Airport and Seaport are considered. The alternative site selections with mitigation measures and without mitigation measures are calculated and analyzed before choosing the proposed site alternatives. The objective of this chapter is to highlight some of the salient issues considered for exercising the alternative options.
5.2 BUILDING MATERIAL Analysis of alternative building materials as compared to conventional technologies or methods of construction, which are energy intensive in nature, can help to identify sources which can lead to energy conservation to a great extent thereby taking a step forward towards sustainability. Scope of this section covers the selection guidelines for alternate materials and technologies at various stages of building construction. The tentative quantities of the construction material for concreting is as follows:
Table 5-1 Quantity and source of construction material
S. no Construction Material Qty Source 1. Stone Aggregate 20mm 1,90,000 Cum Within 5 km of radius 2. Stone Aggregate 10mm 1,10,000 Cum 3. Coarse Sand (Only for concreting ,to 1,70,000 Cum be add for other job) 4. Cement (Only for concreting ,to be add 1,20,000 Tonne ACC/ULTRATECH for other job) AMBUJA / NUVOCO / JK CEMENT 5. Flyash 28,000 Tonne NTPC Dadri 6. Reinforcement steel 50,000 mt. SAIL/ TATA STEEL LTD./ RINL/JINDAL STEEL & POWER LTD / JSW / or as approved by ae, NDMC from time to time as primary producer 5.2.1. WALL Conventionally, sun burnt clay bricks are cemented in the construction of walls. The strength of these construction materials cannot be compromised which will otherwise pose a threat to the life and property
134 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC of the occupants. However, presently, materials with similar properties are easily available that are made of waste products, thereby reducing the waste burden and conserving natural resources. Thus, the project proposes the use of the following for walls:
• Brick and block products with waste and recycled contents such as fly ash (15 to 35%), blast furnace slag (20 to 25%), sewage sludge, waste wood fibre etc. • Fly ash based lightweight aerated concrete blocks – fly ash being a waste product of thermal power plant poses the challenge of disposal. Hazardous in powder form, it is rendered harmless when molded as bricks. Fly ash-based lightweight aerated concrete blocks are manufactured for walling and roofing purposes by mixing fly ash, quick lime, or cement and gypsum with a foaming agent like aluminum powder. • Fal-G products – are manufactured by use of two waste products being fly ash, calcite gypsum (a byproduct of phosphogypsum or natural gypsum) along with lime. • Materials proposed for use in the wall openings such as doors and windows include: • Precast thin lintels, use of Ferro-cement-sunshade cum lintel etc. • Renewable timber • Steel manufactured from recycled content • Aluminum manufactured from verified recycled content • Saw dust based doors and window frames • Ferro-cement shutters, PVC doors and windows, Rice husk boards, Natural fibre- reinforced • Polymer composite door panels • The finishing for the openings will be by the use of Fly ash, Ceramic tiles, and Terrazzo floors
5.2.2. ROOF The conventional material used for roofing is RCC, as it is suitable for longer spans. The constituents of RCC, i.e. cement, sand, aggregate and steel are energy intensive materials and high embodied energy content. Alternately, it is proposed to use lightweight synthetic aggregates such as fly ash based aggregates, which is suitable for manufacture of brick, blocks, and is good substitute for clinker and natural aggregates. When pre-cast/aerated cellular concrete walling blocks and roofing slabs are used in multi- storied structures, they reduce the weight, resulting in a more economical design. They have high rating to fire resistance and provide better insulation and thus improved energy efficiency. These are manufactured by the aerated cellular concrete manufacturing process.
135 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
5.2.3. SUPERSTRUCTURE Structural frame of building comprises of footing, columns, beams and lintels, over which the envelope of building is supported. A variety of metals are used in buildings, but the major building material used structurally is steel. Steel has a high-embodied energy and recyclable content, as well as scrap value. Aluminum forms the second most common material used for roofing sheets, window frames, and cladding systems, which has the highest recyclable content. Hence, bulk of the metal needs for the building shall be met by steel and aluminum. Problem with RCC. The choice of cement will be:
• Use of fly ash and/or blast furnace slag concrete: The amount of cement used in concrete can be reduced by replacing a portion of the cement with coal fly ash (waste material from coal burning power plants) and/or GGBF (ground granulated blast furnace) slag in conventional mixes.
• Recycled aggregates: Recycled aggregates include crushed concrete, brick, glass, or other masonry waste can also be used in conventional mixes
• Lightweight concrete: Aluminum powder when added to lime reacts and form hydrogen bubbles, and a lightweight cementations material is formed which could be used in conventional mixes
5.2.4. ROADS AND OPEN SPACES Roads and open spaces consist of compound walls, grills, roads, sidewalks, parking lots, drains, curbs, landscaped areas, street furniture, tree covers, and flowerbeds. In line with environment friendly design it is proposed to provide: • Permeable paving- Permeable (porous) paving will be provided to control surface water runoff by allowing storm water to infiltrate the soil and return to the ground water. The traffic areas will however continue to be impermeable. • Gravel/crusher fines - Loose aggregate materials from masonry wastes will be used to cover pedestrian surfaces. • Use of grass pavers on the road, parking and pedestrian areas to reduce the heat island effect. • Use of steel in fencing, grills, tree covers, and benches and even in streetlights will be replaced by bamboo in the green areas
5.2.5. ENERGY CONSERVATION To achieve conservation of energy, appropriate design of a building is of paramount importance. Accordingly, it is proposed to incorporate the guidelines of Energy conservation Building Code, 2016 for the structures of the Institutional project.
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The concept of passive solar design emphasizes architectural design approaches that minimize building energy consumption by integrating conventional energy-efficient devices, such as mechanical and electrical pumps, fans, lighting fixtures, and other equipment, with passive design elements, such as building sitting, an efficient envelope, appropriate amounts of fenestration, increased day lighting design, and thermal mass. The basic idea of passive solar design is to allow daylight, heat, and airflow into a building only when beneficial.
The project layout has been finalized after careful sitting consideration of various components to optimize availability of natural sunlight. Advanced Solar Passive Techniques are employed to achieve energy efficiency. Glazed windows are located to receive maximum sunlight in winter. To reduce heat losses during the night these windows are often single-glazed. The orientation of the building will be done in such a way that maximum daylight is available. The orientation of the building would be done in such a manner that most of glazed areas in north and east. Lesser opening will be provided on the west facing walls. Landscape and greens areas will be so spaced so as to cool the surrounding environment, which will reduce energy consumption. Green belt in the site will be maintained by the project proponents, which would have an overall cooling effect on the surroundings. To make it a self-sustainable campus, the campus will comprise of solar panel laid on the natural slope. All the panels will be made to face southern face so that maximum energy can be captured. The solar is deliberately kept away from the residential and hostel zones to reduce urban heat island effect.
5.3 ALTERNATIVES CONSIDERED FOR SELECTION OF SITE
This is redevelopment project, so no site alternatives are considered.
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Chapter-6. ENVIRONMENTAL MONITORING PROGRAMME
6.1. INTRODUCTION The purpose of the monitoring programme is to ensure that the specified mitigation measures defined in the EMP are complied with and leads to the desired benefits for the target area and its population. To ensure the effective implementation of the EMP and gauge the efficiency of the mitigation measures, monitoring shall be undertaken both during the construction and operation period of the project.
6.2. OBJECTIVES OF ENVIRONMENTAL MONITORING The objectives of environmental monitoring program for the project are given below;
• To provide a short term and long term environmental impacts of the project. • To comply the regulatory requirements as provided by state board and central board. • To provide a data to conduct an audit. • To provide a compliance report required by the regulatory authority.
It is essential that an effective environmental monitoring plan must be designed and followed Also a system of reporting of noncompliance/ violation related to environmental norms have also prepared in consultation with project management to address the issue as per the hierarchical management cell.
6.3. PURPOSED SCHEDULE Environmental monitoring programme is a vital process of any management plan of the development project. This helps in assessing the potential problems that result from the proposed facility, changes in environmental conditions and effectiveness of implemented mitigation measures. Regular monitoring in a systematic and standardized manner helps in assessment of current environment and provides information on operational performance of installed pollution control facilities. Proposed schedule of environmental monitoring for both construction and operation phase is presented in table given below in Table 6.1 Table 6-1 : Environment Monitoring Plan- Construction phase
Source Monitoring Location Parameters to be Frequency Monitored Ambient Air Quality At 1 location at PM2.5, PM10, Twice a week for one boundary of the project SO2,NO2, CO months; in each site. season At 4 Locations within the surroundings (2 km) from Project site
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Ambient Noise At 1 location at Day and night noise Once in six months boundary of the project level site. At 4 Locations within the surroundings (2 km) from Project site Ground water At 1 location at As per drinking water Once in six months boundary of the project standards IS10500 site. At 2 Locations within the surroundings (2 km) from Project site Surface water Nearby surface water As per CPCB Standards Once in six months body (2 Locations) Soil As suggested by PCB As per IS standards As per conditions mentioned in EC letter or Consent letter Occupational Health Pre-employment check Vision, Audiometry, Once after appointment Monitoring up Spirometry, Chest ski gram, Blood test (RBCs), Hepatitis etc. Periodical check up Spirometry, Blood test Once in year (RBCs), Anemia, Hepatitis etc. Post-employment Vision, Audiometry, Once before release check up Spirometry, Chest from duty ski gram, Blood test (RBCs), Hepatitis etc.
Table 6-2 : Environment Monitoring Plan- Operational stage
Source Monitoring Location Parameters to be Frequency Monitored DG set DG stacks PM, SO2, NO2 Twice in a year or as emissions per requirement of SPCB
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DG set noise At 1 m distance from Noise level Twice in a year or as enclosure per requirement of SPCB STP Inlet and Outlet pH, BOD, Suspended Daily (as per SCADA) or as per requirement of Solid, Oil & Grease SPCB Ambient Air At 1 location at boundary PM2.5, PM10, Once in six months Quality of the project site. SO2,NO2, CO Ambient Noise At 1 location at boundary Day and night noise Once in six months of the project site. level Ground water At 1 location at boundary As per drinking water Once in six months of the project site. standards IS10500
6.4. ENVIRONMENTAL POLICY
The developers believes that responsible environmental stewardship comprises diligent application of well-established natural resource management, controls and practices for the protection, reclamation of the mined out land, preservation of biodiversity and proper disposal of waste following the best environmental practices during the development and operation of project.
Environmental policy prescribed for standard operating process to bring into focus any violation/deviation of the environment and forest norms/conditions that the mine operations will implement operational and risk management practices that provide for maximum protection of people and the environment. To this end, the owner resolves that will follow the below mentioned practices: Operate in accordance with prescribed industry standards while complying with all applicable environmental, health and safety laws and regulations.
6.4.1. OBJECTIVES Policy shall be complied by following objectives Establish and maintain a well-defined environmental, health and safety management to guide its operations. Ensure that all employees, officers, understand and adhere to its environmental related management program. Provide operations with the necessary resources, expertise and training to effectively carry out its EHS management programs. Provide regular basis training program to the labors working on project site. Engage workers and other staff at all levels in programs directed towards minimizing adverse effects on the environment resulting from Construction/ Industrial activity.
140 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Work proactively with governments and the public in the development of cost effective and realistic regulations that promote enhanced environment and safety protection. Promote environmental awareness among its employees, residents, labours and their families and the communities in which it operates. Require those who provide services and products to practice good environmental stewardship. Organize regular health check-up camp on project site for workers or nearby villagers. Mitigate environmental impacts through efficient use of resources and the reduction of input materials and waste. Maintain a high degree of emergency preparedness on site.
6.4.2. ARRANGEMENT FOR ENVIRONMENT PROTECTION AND CONSERVATION
The Project will be supervised & controlled by the management supported by a team of technically and statutorily qualified personnel apart from the operating staff of skilled, semi-skilled, unskilled and other categories.
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Chapter-7. ADDITIONAL STUDIES (DISASTER MANAGEMENT PLAN) A disaster is an event trigger by natural or man-made causes that lead to sudden distribution of normalcy of life, causing widespread damage to life and property. Distribution can be caused due to occurrence of frequent hazards like earthquakes, fires, cyclones, terrorism, and chemical explosions. Level of risk majorly depends upon the various hazards for which any specific area is prone to also on the various physical, social-economic and institutional parameters. This chapter will cover an outline of disaster management plan to handle emergency situations as identified for the project and their respective emergency response
7.1. PURPOSE AND OBJECTIVE The objective of emergency response is to: Ensure safety of people; protect the environment and safeguard commercial considerations of the project and the community; Immediate response to emergency situation with effective communication network and organized procedures; Obtain early inputs of emergency conditions so as to prevent impact on personnel, community, assets and environment; Safeguard personnel to prevent injuries or loss of life by: Protecting personnel from the hazard; Evacuating personnel from the site when necessary; Minimize the impact of the event on the project, community and the environment by: Limiting the hazard as far as possible; Limiting the potential for escalation; and To localise the spread of impact.
For meeting the emergencies caused by major accidents, planning response strategies are termed as Disaster Management Plans (DMPs). DMPs cannot be considered in isolation or act as a substitute for maintaining good safety standards in premises of every facility. The best way to protect against major accidents occurrence is by maintaining very high levels of safety standards. Generally, the following five phases are involved in an emergency: Discovery and Notification: An event with an imminent threat of turning into an accident must first be discovered and the discoverer quickly notifies the same to the Auxiliary Team Controller, who will eventually inform safety officer. Evaluation and Initiation of Accident Control: Based on the evaluation of available information, the safety officer makes a rapid assessment of the severity of the likely accident and initiates the best course of action.
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Suppression and Counter Measures: Action is first taken to contain and control the accident by eliminating the causes which may lead to the spread of accident. Measures are also taken to minimize the damage to personnel, property and environment. Clean-up and Disposal: After the accident is effectively contained and controlled, the clean-up of the site of the accident and safe disposal of waste generated due to the accident are undertaken.
Documentation: All aspects of accidents, including the way it started and progressed as well as the steps taken to contain and the extent of the damage and injury, must be documented for subsequent analysis of accident for prevention in future, damage estimation, insurance recovery and compensation payment. It may be noted that some aspects of documentation, such as, photographs of the site of accident and main objects involved in the accident, survey for damage estimation, etc. may have to be carried out before the clean-up and disposal phase. However, the effort in all cases is to recommence the operation as soon as possible.
7.2. IDENTIFIED EMERGENCY SITUATIONS Broadly, the emergency situations identified for the premises of site can be classified as: Natural Hazard These are often sudden and intense resulting into considerable destruction, injuries and deaths. Population is the key factor inside premises; which is likely to perceive major impact because of magnitude and frequency of the hazard. o Flood o Earthquake
Man-Made Hazard These are anthropogenic in nature, can be sudden or progressive, which impacts with such severity that the affected community has to respond by taking immediate and exceptional measures including help from outside the community. . Fire and Explosion . Structural Collapse . Electrocution . Bomb Threat . Road Accidents and transportation of hazardous material, if any; Each of the above events, which are not limited to these only, will be assessed in detailed as to the possibility of occurring during general operations of the premises, any construction activity, or non- routine activities along with the consequences that the event may cause.
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7.2.1 PREPAREDNESS FOR THE EMERGENCY The goal of preparedness for any emergency is to achieve a satisfactory level of readiness to respond to any disaster in order to save lives, minimize disaster damage, and enhance disaster response operations. The basic approach towards emergency preparedness will comprise of the following activities: Identify all risk associated with each building tower, so as to anticipate the actions to be taken as an emergency response be required. Establish an Auxiliary Management Team (AMT) to implement Emergency Procedures at each building; Develop a work plan with details regarding the course of action to be followed in order to minimize personal injury and property damage in the event of fire, flood, loss of ground, or natural disaster. Train the personnel in planning and responding to an emergency; Prepare a facility-wide, list of names and telephone numbers which will be available at each building in the premises. The list will include details of all management, trained emergency responders, and Fire and Police Departments. Test the arrangements and procedures in practice, as often as appropriate;
7.2.2 ROLES AND RESPONSIBILITIES The details given in the subsections identify the inter-linkage and synchronization among the following: Site Main controller for each block Auxiliary Team controller with designated officers for the emergency management will be called Auxiliary Management Team (AMT); External agencies for local support The primary roles of Site Main controller are to:- Respond to the on-site response plan in case of any emergency pertaining to the site; Utilize site and local resources; Set up Emergency Control Centre to direct emergency operations. Assess the magnitude of the situation and decide if evacuation is required from the affected areas; Direct the safe shutting down of the installations in consultation with ATC and other important officers, if necessary. Liaison with District Magistrate, Police, Fire Brigade and other agencies, if necessary in coordination with communication/liaison officer. Communicate all the things to Auxiliary Management Team via Auxiliary Team Controller till the affected area is cleared.
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Declare the “All Clear Situation” after the emergency is cover.
Auxiliary Management Team (AMT) AMT at the operating site under its control will have following role:
Control the emergency and render the building or premises safe by the application of local resources; and Support the local response effort by co-coordinating additional equipment, personnel, and other external resources. The auxiliary Management Team will comprise of: Auxiliary Team Controller–shall be the person who will supervise the following officers, forming as a team. Fire/ Safety Officer; Evacuation Officer; Communication/Liaison Officer and; Medical Officer. The primary roles of Auxiliary Team controller are to:- Coordinate with Site Main Controller to address the emergency with the help of Auxiliary Management Team. Provide advice on possible effect on areas and outside the premises to the local & district administration about the incident and probable need for evacuation; Direct all the operations within the affected areas with priorities for safety personnel minimize damage to the property and environment; Ensure that the non-essential staff, workers of the areas affected are evacuated to the gathering areas and the area is searched for casualties; Direct the supervisor of the affected areas for the safe guarding of the personnel, minimize the damage to site and environment; The role of the members of Team is a detailed below: Fire/ Safety Officer Reports to Auxiliary Team Controller and assist him in all matters; Consult site supervisor of the area regarding special precautions such as type of material involved in fire; Arrange first aid to the casualties and other emergency equipments; In post accident condition to gather information on the material /equipment involved in the accident and its danger potential, its effect on humans and environment;
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Assist site controller in maintaining the emergency equipment; and Assist the site controller in conducting / evaluating mock drills. All the fire fighters shall work under his guidance at the time of emergency. Evacuation Officer Proceed to emergency area and report to Auxiliary Team Controller and acts as per the instructions; Consult the affected area site supervisor for evacuation of the employees; Advice all the employees expect auxiliary management team to assemble at gathering area; If required nearby employees also to be evacuated; To perform head count at gathering area and shall record names; Compare the names with the attendance list if any missing inform to Auxiliary Team Controller. Proceed to the emergency area and report to the Auxiliary Team Controller after getting the information regarding emergency through telephone or through messengers; He will reserve specified messengers to act as runners between the auxiliary main controller and himself; He handles all the transmission to the emergency control centre and dispatched from it, including those to outside agencies and technical information source; As per the auxiliary main controller’s instructions, he will pass information to other members, if required. Communication/Liaison Officer As soon as he receives the information he should proceed to the emergency control centre and report to the auxiliary main controller; He has to co-ordinate with all the outside agencies who offer assistance to an emergency response supporting team; He shall know who represents the various agencies and where and how to contact them; Some of the agencies liaised with are the law, enforcements, public fire services, red cross, rescue and emergency services, local government officials (Police), utility personnel (telephone, electrical, water), health officials, hospitals and ambulance services, lawyer for legal advice (if necessary). He is to ensure that casualties received adequate attention and the alternate transport, when in need; When emergency is prolonged he shall co-ordinate with supply officer to arrange for the relief of rescue or fire fighting personnel and organize refreshments or catering facilities; He is responsible for evacuation of the nearby area people, if situation warrants.
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Medical Officer: On receipt of information keep him ready and alert his staff to attend serious and urgent cases; The medical officer is responsible for providing first aid to those injured/ rescued and making that they are promptly transported for further treatment if required; Co-ordinate the supply officer for medical supplies; He should familiar with antidotes for specified materials.
7.3. SPECIFIC EMERGENCY RESPONSE PROCEDURE Actions are mainly procedures which are to be performed during or immediately after a disaster to minimize suffering and losses through emergency communication, medical assistance, evacuation and search and rescue. Procedures for such events are required and must be understood by all staff, which to be detailed out at later stage. Procedure: Fire A fire is the unplanned and undesired combustion of materials that poses a threat to employees, visitors and property. The purpose should be to reduce the possibility of a fire in the practice, as well as specify the equipment and policies that are to be used in case of a fire. The designated fire officer makes it mandatory to ensure that every employee is taught how to use a fire extinguisher. Fire extinguishers are to be located at conspicuous locations with basic instructions. Procedure is as follows: On hearing the alarm designated fire officer shall immediately contact the Control Room extension to confirm the location and extent of the fire. To inform Auxiliary Team Controller; Proceed to the location of the fire and take charge of the operation. Depending on the extent of the fire or its potential for spreading, he shall utilize the resources at his command to contain or extinguish the fire until the fire brigade arrives. All Staff with no designated fire duties shall see that their work area is left safe and report immediately to the nearest assembly point. Account for all staff on record. Inform the security personnel at the gate to expect the fire brigade and to direct them by the chosen route. Procedure: Earthquake An earthquake is a sudden shaking of the earth caused by the breaking of rock beneath the earth's surface and followed by a series of vibrations. Earthquakes can cause buildings and bridges to collapse, telephone and power lines to fall.
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Procedure is as follows: All persons shall protect him/ her as best as possible during an earthquake by finding the nearest safe location, such as: Beneath a study desk Between a door structure In a wide open area Outside and away from the building All persons must leave the building after the shaking stops. Procedure: Bomb Threat Actions taken in response to such a threat should be prompt and assure the safety of residents while a bomb threat may be a hoax, all such threats should be treated seriously. Procedure is as follows: Do not touch anything electrical including turning lights on or off. Do not take a phone off the hook or replace it. Do not use radios or cellular telephones. Do not move anything that looks out of place, If a suspected bomb device is found, take note of the location, but do not touch it. Notify the police regarding the where about of any suspected bomb device. Once it is determined that a bomb threat has been made, the Site Main Controller will coordinate evacuation of the facility by telling residents that there is a gas leak or similar condition that requires immediate evacuation.
7.1. RESETTLEMENT AND REHABILITATION The redevelopment project shall involve shifting of existing staff colony’s population for a while. However the government accommodation or proper alternate shall be given to them in meanwhile
148 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Chapter-8. PROJECT BENEFITS
In Delhi, there has been a frequent complaint of shortage of government accommodation for employees. All the existing government residential colonies for the employees are older than 50-60 years and population accommodation is less. So as per the current scenario keeping the population growth in mind and facilities to central government employees, idea of redevelopment of existing colonies came. These projects are aimed at increasing the available residential units by almost two fold. These redevelopment proposals are large-scale developments characterized by high-rises and manicured landscapes. They also seem energy intensive and isolated from their immediate built context. The Project proposes to obtain green building GRIHA certification for the project whereby it will conserve/save approx. 35-40 % of water then conventional usage. The project also proposes to reduce energy consumption and also provide solar/ renewable power to offset the annual power consumption thereby further reducing carbon footprints of the project The construction of redevelopment project shall be done on large scale which will give the employment opportunities to the nearby unskilled, semi-skilled and skilled labour, approx. 550-600 persons shall get employment during the construction stage,
Infrastructure development shall take place as detailed traffic analysis is being done and alternatives are proposed for roads transport, water and sanitation will be improved by proposing wastewater treatment facility, solid waste management facilities etc. Overall project shall have positive benefit.
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Chapter-9. ENVIRONMENTAL MANAGEMENT PLAN AND ENVIRONMENTAL MONITORING PROGRAM The Environmental Plan (EMP) is specified in order to describe the mitigation measures for all the impacts associated during all the phase of the project. The EMP intends to delineate the monitoring and management measures to minimize such impacts by allocating management responsibility and suggesting skill requirement for implementation of these measures effectively. The project proponent should ensure that all the contractors should comply with the EMP while executing various activities of the project. For an effective implementation of monitoring and management plan, an organization structure defining the roles and responsibilities of various officers is proposed below. An environmental monitoring plan specifying the parameters, monitoring schedule and a comprehensive environmental management plan identifying the impacts and mitigation measures are included in the sections below.
9.1. ORGANIZATION STRUCTURE FOR IMPLEMENTATION OF EMP A project management team will be formed by NDMC to manage the proposed project during construction and operation phase. It will comprise of Project manager, Planning, Engineering, Finance and Operation Departments. The team will handle the following responsibilities: Environment Management Periodic review of environmental status; Implementation and maintenance of green buffer areas; Management of water bodies; Review of STP operations; Monitoring of collection and treatment of waste; Compliance to conditions stipulated in Environmental Clearances (EC) and consents; Implementation of EMP; Undertake awareness activities for industries and residential areas. Social Management Undertake continuous engagement with local community; Address grievances of the industries, local community and residents.
9.1.1 ROLES AND RESPONSIBILITIES To achieve the above objectives, the adopted organization structure of the project management team is discussed below:
150 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Project
Management Head
Planning Engineering Finance Operations
Figure 9-1- Organization Structure:
Note: This is only a proposed hierarchal grouping; the project proponent should be able to develop a similar hierarchal group as per his company requirement.
It is proposed that the Project Management Team project will be collectively responsible for: Review/ inspection of STPs Management of water bodies Landscaping, Maintenance of green buffers Compliance conditions of Environmental Clearance and consents Implementation of EMP Monitoring and disposal of waste Awareness activities, if any Reporting any accidents related to health and safety- fire hazards, general hazards and preparation of action reports Inspection and Auditing It will be ensured that all the contractors comply with the requirements of conditions for all applicable permits and guidelines; The inspections and audits will be undertaken by Project Management Team directly or through external agencies/experts; The inspection and audit findings of project team will be implemented by the contractors in their respective areas. The entire process of inspections and audits will be documented; Review Mechanism Reporting of environmental, health, safety and social performance reports or check list, incident record register etc. will be developed and implemented through a program of reporting and reviewing throughout the project. Reports from inspection, audits and other improvement program will be regularly communicated;
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The communication process will involve regular team briefings, group meetings and meeting with stakeholders; All contractors engaged will be required to adhere to the reporting requirements in terms of timely report submission with required details; All complaints and enquiries will be addressed with records maintained in an assigned register by the safety officer of each contractor; Internal and external reporting mechanism will be developed, internal reporting will comprise of the concerned officials from project management team, the representatives of the contractors and the top officials of NDMC and the internal reporting will be undertaken on quarterly basis while the external reporting will be undertaken yearly.
9.2. ENVIRONMENTAL MONITORING PLAN
To ensure the effective implementation of the Environmental Management Plan (EMP), it is essential that an effective monitoring program should be designed and carried out. It provides basis for evaluating the efficiency of mitigation measures and suggest further actions that need to be taken to achieve the desired effect. The monitoring programme should include: Visual observations; Selection of environmental parameters at specific locations; and Sampling and regular testing of these parameters 9.2.1. MONITORING METHODOLOGY Monitoring methodology covers the following key aspects: Components to be monitored; Parameters for monitoring of the above components; Monitoring frequency; Monitoring standards; Responsibilities for monitoring; and Monitoring cost 9.2.2. MONITORING STANDARDS The Central Pollution Control Board (CPCB) has developed National Standards for Effluents and Emission under the statutory powers of the Water (Prevention and Control of Pollution) Act, 1974 and the Air (Prevention and Control of Pollution) Act, 1981. These standards have been approved and notified by the Government of India, Ministry of Environment & Forests, under Section 25 of the Environmental (Protection) Act, 1986. Till now, Effluent standards for 37 categories of industries and Emission Standards for 31 categories of industries have been evolved and notified besides standards for ambient air quality, ambient noise, automobile and fuels quality specifications for petrol and diesel
152 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Ambient air quality National Ambient Air Quality Standards (NAAQS), as notified under Environment (Protection) Rules 1986 and revised through Environment (Protection) Seventh Amendment Rules, 2009 are given in table below: Table 9-1 National ambient air quality Standard Pollutant Time Concentration in Ambient Air Weighted Industrial, Ecologically Sensitive Average Residential, Area (Notified by Rural and other Central Government) Areas
Sulphur Dioxide (SO2), Annual * 50 20 µg/m3 24 Hours ** 80 80
Nitrogen di oxide (NO2), Annual * 40 30 µg/m3 24 Hours ** 80 80 Particulate Matter (Size Annual * 60 60
less than 10µm) or PM10, 24 Hours ** 100 100 µg/m3 Particulate Matter (Size Annual * 40 40
less than 2.5µm) or PM2.5, 24 Hours ** 60 60 µg/m3 3 Ozone (O3) , µg/m 8 Hours * 100 100 1 Hour ** 180 180 Lead (Pb) , µg/m3 Annual * 0.50 0.50 24 Hours ** 1.0 1.0 Carbon Monoxide (CO), 8 Hours ** 02 02 mg/m3 1 Hour ** 04 04 3 Ammonia (NH3), µg/m Annual * 100 100 24 Hours ** 400 400 3 Benzene (C6H6), µg/m Annual * 05 05
Benzo(a)Pyrene (BaP) Annual * 01 01 Particulate phase only, ng/m3 Arsenic (As), ng/m3 Annual * 06 06
Nickel (Ni), ng/m3 Annual * 20 20
Annual arithmetic mean of minimum 104 measurements in a year taken twice a week, 24 hourly at uniform interval ** 24 hourly or 8 hourly or 01 hourly values as applicable shall be complied with 98% of the time in a year. 2% of the time they may exceed, but not on 2 consecutive days. Note: Whenever and wherever monitoring results on two consecutive days of monitoring exceed the limits specified above for the respective category, it shall be considered adequate reason to institute regular or continuous monitoring and further investigation. (Source: Central Pollution Control Board)
Water quality standard The designated best use classification as prescribed by CPCB for surface water is as given in below
153 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Table 9-2- Primary water quality criteria for designated best use class
Designated-Best-Use Class of water Criteria Drinking Water Source A Total Coliforms Organism without conventional MPN/100ml shall be 50 or less treatment but after pH between 6.5 and 8.5 disinfection Dissolved Oxygen 6mg/l or more Biochemical Oxygen Demand 5 days 20°C 2mg/l or less Outdoor bathing B Total Coliforms Organism (Organized) MPN/100ml shall be 500 or less pH between 6.5 and 8.5 Dissolved Oxygen 5mg/l or more Biochemical Oxygen Demand 5 days 20°C 3mg/l or less Drinking water source C Total Coli forms Organism after conventional MPN/100ml shall be 5000 or treatment and disinfection less pH between 6 to 9 Dissolved Oxygen 4mg/l or more Biochemical Oxygen Demand 5 days 20°C 3mg/l or less Propagation of Wild life D pH between 6.5 to 8.5 and Fisheries Dissolved Oxygen 4mg/l or more Free Ammonia (as N) 1.2 mg/l or less Irrigation, Industrial E pH between 6.0 to 8.5 Cooling, Controlled Waste Electrical Conductivity at disposal 25°C micro mhos/cm Max.2250 Sodium absorption Ratio Max. 26 Boron Max. 2mg/l Below-E Not Meeting A, B, C, D & E Criteria
(Source: Central Pollution Control Board) As per the EHS guidelines, the treated sewage discharge is to meet the guidelines provided in below table Table 9-3 Treated sewage discharge guidelines
S.No. Parameters Guideline Values 1. pH 6-9 2. BOD 30 mg/l 3. COD 125 mg/l 4. Total Nitrogen 10 mg/l 5. Total Phosphorous 2 mg/l 6. Oil and Grease 10 mg/l
154 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
7. Total suspended solid 50 mg/l 8. Total coliform Bacteria 400 MPN*/100 ml *MPN-Most Probable Number Ambient Noise Standards As per EHS guidelines, for residential, institutional and educational area, the one hourly equivalent noise level (Leq hourly) for day time is 55 dB (A) while the Leq hourly for night time is prescribed as 45 dB (A). Noise standards notified by the MoEF&CC vide gazette notification dated 14 February 2000 based on the A- weighted equivalent noise level (Leq) are as presented in table below. Table 9-4Ambient Noise Standards
Area Code Category of area Noise dB (A) Leq Daytime* Night time* A Industrial Zone 75 70 B Commercial Zone 65 55 C Residential Zone 55 45 D Silence Zone 50 40 (Source: Central Pollution control Board) Note: 1. Day time is reckoned in between 6 a.m. and 9 p.m. 2. Night time is reckoned in between 9 p.m. and 6 a.m. 3. Silence zone is referred as areas up to 100 meters around such premises as hospitals, educational institutions and courts. The Silence zones are to be declared by the Competent Authority. Use of vehicular horns, loudspeakers and bursting of crackers shall be banned in these zones. 4. Mixed categories of areas should be declared as one of the four above mentioned categories by the Competent Authority and the corresponding standards shall apply. Noise standard for Occupational Exposure Noise standards in the work environment are specified by Occupational Safety and Health Administration (OSHA, USA) which in turn are being enforced by Government of India through model rules framed under the Factories Act.
Table 9-5-Standard for Occupational Noise Exposure
Total Time of Exposure per Day in Sound Pressure Level in dB(A) Hours (Continuous or Short term Exposure) 8 90 6 92 4 95 3 97 2 100 3/2 102 1 105 ¾ 107
155 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
½ 110 ¼ 115 Never >115 No exposure in excess of 115 dB (A) is to be permitted.
9.2.3. MONITORING PLAN MATRIX A monitoring plan matrix is being developed to specify the time frame when the environmental control activities need to be carried out, who is responsible and what methods will be used to measure effectiveness. Monitoring plan for various performance indicators for construction and operation phase is summarized in table below Table 9-6Monitoring Schedule for Different Environmental Parameters
Component Monitoring Location Frequency Responsibility Parameters CONSTRUCTION PHASE
Air RSPM, SO2, NOx, Project Site Three, 8 –hr, Project Manager- CO sample Environment per day once every season for two years Water Quality Monitor the Project Site Annual Project Manager- effluent released (1 sample/year) Environment during the for project two years Noise Monitoring the Project Site Quarterly Project Manager- noise level due to (4 samples/year) Environment construction for machinery two years Soil Organic matter, C, Project Site 1sample/year for Project Manager- H, N, Alkalinity, two Environment Acidity, heavy years metals and trace metal. Alkalinity, Acidity Traffic Project Manager- Environment Operational Phase Air RSPM, SO2, Near DG sets Quarterly (4 Project Manager- NOx, CO samples/year)at 1 location for 1 year excluding monsoon season Water Monitor the RWH Pre & Post Environment Resource activities Monsoon
156 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Water quality Monitor the grey Parameters for Weekly Project Manager- water quality horticulture use (Continuous) – BOD, pH, S.S, Coliforms Noise Monitor the noise Equivalent Quarterly Environment due to the noise (4 samples/year) additional levels for traffic generated two years Soil Organic matter, Quarterly (4 Project Manager- C, samples/year)at H, N, project site for 1 Alkalinity, year Acidity, heavy metals and trace Metal. Alkalinity, Acidity. Traffic Additional traffic Quarterly Environment on roads due to development of site
9.3. AWARENESS AND TRAINING Trainings are necessary for effective implementation of environment management plan. Contractors appointed must be made aware of the importance of waste segregation and disposal, water and energy conservation. This awareness can be provided through leaflets and periodic meetings. They should be informed of best environmental management practices. The specific trainings relevant for the personnel at site include the following: Collection, transport, treatment and disposal of solid and hazardous waste. Monitoring of ground water and wastewater samples Techniques for waste minimization, water conservation & energy conservation. Applicable environmental, health and safety regulations and compliance requirements for the same.
9.4. RECORD KEEPING AND REPORTING Records should be maintained for regulatory, monitoring and operational issues. Typical record keeping requirements for the proposed project is summarized in table below. Table 9-7- Record Keeping Requirement
Parameters Particulars Solid Waste Handling and Disposal Daily quantity of waste received Daily quantity recycled Daily quantity sent for landfill Sewage Treatment Daily quantity of raw and treated sewage
157 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Treated wastewater quality Regulatory Licence (Environmental) Environmental Permits / Consents from MOEF Copy of Waste manifests as per requirement
Monitoring and survey Records of all monitoring carried out during different stages of the project Accidental Reporting Date and time of the accident Sequence of the event leading to the accident Name of the hazardous waste involved in in the accident Chemical data sheet assessing effect of accident on health and environment Emergency measure taken others Log book of compliance Employee environmental, health and safety records Equipment inspection and calibration records, where applicable Vehicle maintenance and inspection records
9.5. PROPOSED ENVIRONMENT MANAGEMENT PLAN An Environment Plan has been developed following the identification of impacts and mitigation measures. The mitigation measures suggested will be as according to the monitoring schedule The EMP includes the following: Mitigations suggested for adverse environmental and social impacts and associated risks; Personnel responsible for implementing the mitigation measures at various stages of the project; The environmental impacts and mitigation measures suggested for various environmental components for the construction and operation phase of the project are provided in below tables.
158 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Table 9-8 Environment Management Plan-construction phase
S.NO. COMPONENT IMPACT IDENTIFIED SUGGESTED MITIGATION RESPONSIBILITY MEASURES 1. Land Environment Topography of the area Land clearing activities should be kept Contractor, Project will change. lesser to the absolute minimum Management Team infiltration and thereby The movement and parking of heavy increase runoff reduce machinery and other vehicles will be overall greenery of the area restricted to identified routes to establish a vegetative cover, appropriate to the site prior to the onset of intense rain or windstorms Good housekeeping at labour resting areas and the construction area Proper routing and adequate capacity of the storm water run-offs drains with catch pits 2. Ambient Air Emissions from Humus rich top soil should be Contractor, Project Quality construction and removed and stored in an appropriate Management Team demolition activities and manner equipment’s, vehicles Wet suppression should be applied to Improper handling and at least 80 percent of all inactive storageof construction disturbed surface material Limited vehicular movement shall be Fugitive dust emissions permitted Emissions from onsite the heights from which materials are operationof diesel dropped should be reduced generators
159 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Burning of waste at sites Covering of haul trucks with suitable covering material DG sets will be used as a backup source only Demolish waste should be stored in temporary site and transported to the Recycling plant 3. Ambient Noise Noise due to Construction Adequate planning to avoid high Contractor, Project Quality and demolition activities noise activities to be undertaken. Management Team (such as excavation, Acoustic enclosures, noise barriers to grading, erecting be provided in areas of high noise equipment, razing existing generating sources. structure. Piling, etc) Rubber padding to be provided for Noise due to operation of vibration control heavy equipment and Limitations on movement of vehicles machinery during night time Construction Movement of vehicles workers to use ear muffs in areas with potential for high noise generation. Provision of rubber padding Regular maintenance of vehicles and repair of equipment. Noise barriers will be provided between the activities and the receptors. Restriction on use of equipment generating high noise during night time.
160 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Working hours and construction activities to be limited. 4. Water Resource Sediment run off from Water should be sprayed on concrete Contractor, Project and Quality construction area structures to allow curing Management Team construction activities will Rainwater harvesting system shall be resultin disturbance of developed for all the labour resting topsoil areas Unplanned disposal of adequate number of toilets (at least 8 sewage from construction toilets per 100 labour) and soak pits camps To prevent the runoff from stockpiles Improper disposal of generated during excavation silt sewage fencing will be provided to protect water quality 5. Soil Resources Movement of heavy Topsoil (upper 30 cm) will be Contractor, Project vehicles and machinery on removed and stored separately prior to Management Team unpaved surface commencement of bulk earthwork Potential contamination of Minimum clearance of vegetation soil may occur due to shall be carried out accidental spills of Excavated soil shall be lubricating oil used/transported at the earliest for Erosion of the top soil due filling low lying areas Retention wall to tree cutting or bund shall be provided around the Generation of construction storage areas and demolition waste/ Restricted movement of heavy debris, waste oil and machinery in the site area to minimize chemicals the possibility of compaction; Adequate hazardous waste collection and storage facilities shall be provided
161 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Covered garbage bins shall be provided for the construction camps. Tree plantation should be initiated in construction phase.
6. Traffic and The condition of roads Construction vehicles will be allowed Contractor, Project transport may deteriorate during the to move in the site only through Management Team construction phase exclusive entry and exit points. Disruption of traffic is Adequate training to the drivers of anticipated on connecting construction vehicles for speed roads due unplanned entry restrictions and to crew members will to the site be provided. Roads damaged due to project vehicle will repaired and maintained at regular intervals. Transportation should be done in non- peak hours 7. Occupational Injury due improper Manual transfer of heavy loads to be Contractor, Project Health and handling, operation and minimized by proper work site layout. Management Team Safety execution Good housekeeping practices to be Trip and fall, inadequate exercised. fall safe arrangements Proper signage to be provided around Exposure to hazardous construction site. substances Use of Personal Protection Equipment (PPEs) to be mandated at work site. Workers to be provided with health and safety training.
162 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Use of temporary fall protection measures in scaffolds and out edges of elevated work surfaces, such as hand rails and toe boards to prevent materials from being dislodged shall be done. Safety harness to be ensured for workers while working at heights. First aid and essential medical services to be provided at site 8. Ecology Clearing of vegetation Loss of vegetation would be Contractor, Project included trees on the site compensated by the greenbelt Management Team will involve removal of development, which should be local floral and faunal initiated while construction is being species found on the site. done, however try to retain maximum Air, noise and visual no of trees. disturbance may be Adequate compensation as per generated during the site requirement of forest department shall development that can be made. affect the behavior of fauna
Table 9-9 Environment Management Plan- Operation phase S.NO. COMPONENT IMPACT IDENTIFIED SUGGESTED MITIGATION RESPONSIBILITY MEASURES 1. Ambient Air Emission from power DG sets will be located in the Project Quality backup/DG sets downwind direction with respect to Management Team residential areas.
163 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Emissions from increase in SPV developed for overview of traffic volume power supply shall ensure that the power failure is maintained at minimal. Stack heights for DG sets to be maintained as per CPCB/MoEFCC norms. All emission sources to be provided with adequate stack height as per CPCB / MoEFCC norms. Good housekeeping to be practiced. Vegetative barriers in form of green belt will be provided around the site which will minimize the built up of pollution level. Alternative routes for transportation should be recommend
2. Ambient Noise Noise due to other facilities Sound attenuators / acoustic lining Project Quality around the site shall be installed in ducts in accordance Management Team Movement of vehicles with requirements DG sets will be provided with acoustic enclosures; Trees with heavy foliage will be planted to minimise the noise pollution A minimum distance of 50m-70m will be provided between the buildings and the rail tracks 3. Water Resource Delhi Jal Board which has a Water consumption will be Project and Quality reserve quantum thus impact on fresh minimized by a combination of water Management Team water resources saving devices and other domestic water
164 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
conservation measures. Furthermore, to ensure ongoing water Conservation, an awareness programme will be introduced for the residents. The following section discusses the specific measures, which will be implemented: Domestic and Commercial Usage Use of water efficient plumbing fixtures (ultra-flow toilets and urinals, low flow sinks, water efficient dishwashers and washing machines). Water efficient plumbing fixtures Use less water with no marked reduction in quality and service. Leak detection and repair techniques. Sweep with a broom and pan where possible, rather than hose down for external areas. Meter water usage; employ measurement and verification methods. Monitoring water use is a precursor for management. Awareness campaign to disseminate knowledge on strategies and technologies that can be used for water conservation. Landscaping-Plants with similar water requirements shall be grouped on common zones to match precipitation heads and emitters.
165 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Rainwater harvesting shall be proposed. Use of low-volume, low-angle sprinklers for lawn areas. Select controllers with adjustable watering schedules and moisture sensors to account for seasonal variations, and calibrate them during commissioning. Selecting a drought resistant grass, and using lawn chemicals and fertilizer sparingly also reduces watering needs. Place 3 to 5 in. of mulch on planting beds to minimize evaporation. Promoting Reuse of Water after Treatment and Development of Closed Loop Systems To promote reuse and development of closed loop system for water, segregation of two wastewater scheme namely i) Harvested Storm Water ii) Waste water generated. All along the roads storm water drains would be provided to collect water during rains. They would be adequately sized to prevent over flooding of the site.
4. Solid Waste Inadequate collection and An integrated solid waste Project Management Disposal treatment of domestic waste management will be put in place for Team Unhygienic conditions, odour collection, transport, treatment and problem Localized flooding due to disposal of solid waste generated from the activities
166 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
accumulation of waste along streets The recyclable waste like glass, which can clog drains metal, plastics, paper etc likely to be Contamination of soil and generated from different land uses, will be groundwater collected separately and sold to authorized Improper transportation of recyclers/ vendors municipal solid waste For processing of biodegradable waste, an onsite organic waste convertor (1 nos. of 500 kg) will be setup
5. Socio Economic employment opportunities The project level project Project Management might increase among the local implementation agency to undertake CSR Team population more transport facilities program to ensure communal harmony plying to the area and cooperation. Coming up of commercial Mechanism to train and improve complex catering to staff employment the skill sets of the local community. as well as small business shops,
167 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
9.6. EMP BUDGET Table 9-10-EMP Budget
S.No. EMP Details Remarks Capital Cost Operating Cost (INR) /annum CONSTRUCTION PHASE 1. Environment As per requirements of EC and 12,00,000 monitoring during Consent to Establish construction 2. Sheet Barrier for Noise Incorporated into Construction 1,00,000 50,000 reduction contractors scope 3. Portable Toilets for Either rented or procured 25-30,000/unit 7,50,000 workers 4. Waste Management for Incorporated into Construction 1,80,000 2,25,000 Labour Rest room contractors scope 5. Dust Control During moderate operation levels 1,80,000 about 5-10 tankers (10m3) of water will be required on daily basis per package, depending on the season of the year. Total 24,05,000 OPERATIONAL PHASE 1. Rainwater Harvesting Integrated in the project cost 2,00,000 2. Acoustic Enclosures for 40,000 high noise generating equipment 3. Sewage Treatment Plant Integrated in the project cost 2,20,00,000 20,00,000 (energy + work force 4. Air Pollution As per requirements of EC and 1-2 Crores 5,50,000 Monitoring Consent to Operate 5. Noise Monitoring As per requirements of EC and 1,25,000 Consent to Operate 6. Solid Waste Integrated in the project cost 22,00,000 Management 7. Horticulture and Integrated in the project cost 80,00,000 landscaping 8. EHS management team Environment Cell 2,02,000 9. Internal Traffic Signage/ signals/ monitoring 2,00,000 Management TOTAL 1,35,17,000
170 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Chapter-10. SUMMARY AND CONCLUSIONS Based on the Impact assessment studies and the nature of impacts of the Redevelopment of Staff Colony at Model Town, New Delhi, it is envisaged that this project is one of the positive steps in developing green building concept. It can be concluded from the impact matrix that the proposed project would have an overall positive impact. The associated potential adverse environmental impacts are mostly minimal and can be mitigated to an acceptable level by adequate implementation of the measures as stated in the Environmental Management Plan (EMP). After incorporation of environmental management plans, the environmental sustainability will be improved. Hence, the proposed project is a welcome development and may be accorded environmental clearance
171 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Chapter-11. DISCLOSURE OF CONSULTANTS
10.1. INTRODUCTION OF CONSULTANT Amaltas Enviro Industrial Consultants LLP (AEC) Is an ISO 9001:2008, is certified company. It has been accredited by Quality Council of India (QCI / NABET) as an Environment Consultancy Organization approved by the Ministry of Environment, Forests and Climate Change (MoEF&CC), Government of India, after meticulous inspections on various quality parameters in terms of Environmental Functional Areas (EFA) and available Infrastructural facilities as per prescribed standards and guidelines of the Ministry.
10.2. DISCLOSURE OF CONSULTANT ENGAGED
Name and address of Amaltas Enviro Industrial Consultants ISO 9001:2008 the Consultant (AEC) Certified, . QCI-NABET Accredited.
Project Name: Redevelopment of staff colony at Model Town, New Delhi
10.3. ACCREDITATION FROM QUALITY COUNCIL OF INDIA, QCI
172 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC
Figure 11-1 : Accreditation from Quality Council of India, QCI
10.4. J.P. TEST & RESEARCH CENTRE
J.P. test research Centre is a MoEF&CC recognized Environmental Laboratory. This is NABL accredited and provides sampling, monitoring and analysis of all environmental parameters such as Air Quality, Meteorology, Water Quality, Noise, Soil Quality and Traffic Monitoring. JP test house has been appointed
173 ENVIRONMENT IMPACT ASSESSMENT REPORT PROJECT- Redevelopment of Staff Colony at Model Town, New Delhi DEVELOPED BY-North Delhi Municipal Corporation, NDMC by Amaltas for conducting baseline environmental monitoring including ambient air quality, meteorology, water quality, soil quality, noise monitoring on site.
Figure 11-2- NABL Certificate
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