ENVIRONMENTAL IMPACT ASSESSMENT (EIA) FOR CHENNAI METRO RAIL PHASE-II PRIORITY CORRIDORS EIA REPORT NOVEMBER 2017 (A Government of India Enterprise) Detailed Project Report for Chennai Metro Rail Phase-II Corridors EIA Report for Priority Corridors Content CONTENT 0.0 EXECUTIVE SUMMARY……………………………..……………………….……..…..0.1 1.0 INTRODUCTION 1.1 Background ........................................................................................................ 1.1 1.2 Transport ............................................................................................................ 1.1 1.3 Objective and Scope of EIA Study .................................................................... 1.1 1.4 Legal and Policy Frame Work ............................................................................1.2 1.4.1 Water and Water Pollution ...................................................................... 1.2 1.4.2 Air Quality ............................................................................................... 1.2 1.4.3 Noise Quality .......................................................................................... 1.2 1.4.4 Solid Waste Management ....................................................................... 1.3 1.4.5 The Ancient Monuments and Archaeological Sites and Remains Act, 2010 ................................................................................................................ .1.4 1.5 Institutional Framework ..................................................................................... 1.5 1.5.1 Central and State Pollution Control Boards ............................................... 1.5 1.6 Approach and Methodology............................................................................... 1.5 1.6.1 Data Collection ......................................................................................... 1.6 1.6.2 Environmental Impact Assessment ........................................................... 1.8 1.6.3 Environmental Management Plant ............................................................ 1.8 1.6.4 Environmental Monitoring Plan ................................................................. 1.8 1.7 Format of The Report ......................................................................................... 1.8 2.0 PROJECT DESCRIPTION 2.1 Study Area ........................................................................................................... 2.1 2.2 Proposed Metro System .................................................................................... 2.1 2.3 Route Alignment ................................................................................................. 2.3 2.3.1 Corridor-3: Madhavram to Sholinganullur ................................................ 2.3 2.3.2 Corridor-5: Madhavaram to CMBT ……………………….…................... ... 2.4 2.4 Station Planning .................................................................................................. 2.5 2.5 Systen Design........................................................... ............................................ 2.5 2.5.1 Permanent way ......................................................................................... 2.5 2.5.2 Traction System ........................................................................................ 2.6 2.5.3 Rolling Stock ............................................................................................. 2.6 2.5.4 Ventilation and Air Conditioning System ................................................... 2.6 2.5.5 Signaling System ...................................................................................... 2.6 2.5.6 Fire Collection System .............................................................................. 2.6 2.6 Power Supply System................................................................................... ...... 2.7 2.7 Depot............................................................... ................................................... 2.7 2.8 Construction Activities ...................................................................................... 2.7 3.0 ENVIRONMENTAL BASELINE DATA 3.1 Environmental Scoping ..................................................................................... 3.1 November 2017 Page i Detailed Project Report for Chennai Metro Rail Phase-II Corridors EIA Report for Priority Corridors Content 3.2 Land Environment ........................................................................................... 3.10 3.2.1 Physiography .......................................................................................... 3.10 3.2.2 Soil…………………………………………………………………………... ... 3.10 3.2.3 Geology and Minerals ............................................................................. 3.14 3.2.4 Landuse and Landcover.......................................................................... 3.14 3.2.5 Seismisity ............................................................................................... 3.16 3.3 Water Environment .......................................................................................... 3.16 3.3.1 Water Resources .................................................................................... 3.16 3.3.2 Drainage ................................................................................................. 3.17 3.3.3 Water Quality .......................................................................................... 3.17 3.4 Meteorology and Air Environment………………………………………................3.20 3.4.1 Meteorology ............................................................................................ 3.20 3.4.2 Air Quality .............................................................................................. 3.14 3.5 Noise Environment .......................................................................................... 3.23 3.6 Ecological Environment ................................................................................. 3.24 3.6.1 Forest .................................................................................................... 3.24 3.6.2 Flora and Funa ....................................................................................... 3.24 3.7 Archaeological Sites or Monuments .............................................................. 3.25 4.0 NEGATIVE ENVIRONMENTAL IMPACTS 4.1 General……………………………………………………………………………... ....... 4.1 4.2 Environmental Impacts ....................................................................................... 4.1 4.3 Impacts Due to Project Location…………………………………………..…. ....…..4.1 4.3.1 Project Affected People (PAPs) ............................................................... 4.1 4.3.2 Change of Land Use ................................................................................. 4.1 4.3.3 Loss of Trees ............................................................................................ 4.1 4.3.4 Diversion of Utilities .................................................................................. 4.2 4.3.5 Impact on Archeological Monuments ........................................................ 4.2 4.4 Impacts Due to Project Design ........................................................................... 4.2 4.4.1 Right of Way ............................................................................................. 4.2 4.4.2 Alignment and Architectural Design…………………………..……… ….......4.2 4.4.3 Inter Modal Integration ............................................................................. 4.3 4.4.4 Use of Energy and Water at Stations & Depots ....................................... 4.3 4.5 Impact Due to Project Construction ........................ ………………………….......4.3 4.5.1 Air Pollution due to Construction ........................................................... 4.3 4.5.2 Noise Pollution ....................................................................................... 4.3 4.5.3 Vibration Impacts and Risk to Existing Buildings ................................... 4.4 4.5.4 Muck Disposal ...................................................................................... 4.5 4.5.5 Pre-casting yards and Material stockpiling ............................................. 4.5 4.5.6 Pollution due to Transportation of Construction Material and Soil ......... 4.5 4.5.7 Impacts due to Labour Camps .............................................................. 4.5 4.5.8 Increased Water demand ...................................................................... 4.6 4.5.9 Impact on Ground and Surface Water Quality ........................................ 4.6 4.5.10 Impact due to Land Subsidence ............................................................ 4.6 4.5.11 Soil Erosion.............................................................................................4.6 4.5.12 Impact due to Supply of Construction Material........................................4.6 November 2017 Page ii Detailed Project Report for Chennai Metro Rail Phase-II Corridors EIA Report for Priority Corridors Content 4.5.13 Traffic Diversions....................................................................................4.6 4.5.14 Impacts of Ambient Pollution on Human Health.....................................4.7 4.6 Impacts Due to Project Operation .................................................................. …..4.7 4.6.1 Noise Pollution........................................................................................4.7