Revised COMPREHENSIVE ENVIRONMENTAL IMPACT ASSESSMENT for PROPOSED MULTIPURPOSE JAMRANI DAM PROJECT Submitted to MINISTRY OF ENVIRONMENT & FOREST , New Delhi Submitted by JAMRANI DAM CONSTRUCTION DIVISION-I, Irrigation Department, Kathgodam, Uttarakhand October, 2009 Environmental Impact Assessment (EIA) Report Jamrani Dam Construction Division-1, Irrigation of Jamrani Dam Multipurpose Project Department, Uttarakhand TABLE OF CONTENT CHAPTER 1 INTRODUCTION ........................................................................................................ 1-4 1.1 Introduction ............................................................................................................................... 1-7 1.1.1 Irrigation scenario of Uttarakhand .................................................................................... 1-7 1.1.2 Hydro Power Potential of Uttarakhand ............................................................................. 1-8 1.2 NECESSITY & JUSTIFICATION FOR IMPLEMENTING THE PROJECT ............................................. 1-9 1.3 JAMARANI MULTIPURPOSES DAM PROJECT: AN OVERVIEW .................................................. 1-10 1.3.1 Location and Approach .................................................................................................... 1-10 1.3.2 Project Features ............................................................................................................... 1-12 1.3.3 Main Dam ......................................................................................................................... 1-15 1.3.4 Coffer Dams ..................................................................................................................... 1-16 1.3.5 Reservoir .......................................................................................................................... 1-16 1.3.6 Gola (Kathgodam) Barrage ............................................................................................... 1-16 1.3.7 Power Generation ............................................................................................................ 1-17 1.4 PROJECT OPERATIONS ............................................................................................................. 1-20 1.4.1 Construction Material Requirement ................................................................................ 1-20 1.4.2 Anticipated Project Scheduling ........................................................................................ 1-22 1.5 PROJECT COST .......................................................................................................................... 1-22 1.6 POLICY, LEGAL AND ADMINISTRATIVE FRAMEWORK .............................................................. 1-22 1.7 SCOPING OF THE PROJECT ....................................................................................................... 1-24 CHAPTER 2 METHODOLOGY ...................................................................................................... 2-25 2.1 INTRODUCTION ........................................................................................................................ 2-25 2.2 PHYSICAL ENVIRONMENT STUDY ............................................................................................ 2-25 2.2.1 Landuse – Landcover Classification.................................................................................. 2-26 2.2.2 Slope ................................................................................................................................. 2-26 2.2.3 Soil .................................................................................................................................... 2-26 2.3 AIR, NOISE AND WATER ENVIRONMENT STUDY...................................................................... 2-27 2.3.1 Air Quality Assessment .................................................................................................... 2-27 2.3.2 Sound Level Measurement .............................................................................................. 2-27 2.3.3 Water Quality Assessment ............................................................................................... 2-28 2.4 BIOLOGICAL ENVIRONMENT .................................................................................................... 2-31 2.4.1 Floral Study ...................................................................................................................... 2-31 2.4.2 Faunal Study ..................................................................................................................... 2-33 2.4.3 Aquatic Fauna .................................................................................................................. 2-33 2.5 SOCIOECONOMIC STUDY ......................................................................................................... 2-34 2.5.1 Socioeconomic survey of project affected villages .......................................................... 2-34 2.5.2 SECONDARY SOURCES OF DATA ...................................................................................... 2-35 CHAPTER 3 PHYSICAL ENVIRONMENT ....................................................................................... 3-36 3.1 INTRODUCTION ........................................................................................................................ 3-36 3.2 CLIMATE ................................................................................................................................... 3-36 3.2.1 Meteorology..................................................................................................................... 3-36 3.2.2 Temperature .................................................................................................................... 3-37 3.2.3 Humidity ........................................................................................................................... 3-37 3.2.4 Rainfall ............................................................................................................................. 3-37 3.2.5 Cloud cover: ..................................................................................................................... 3-38 3.2.6 Special Weather Phenomena ........................................................................................... 3-39 3.3 GEOLOGY OF THE PROJECT AREA ............................................................................................ 3-39 3.4 TECTONICS AND SEISMICITY OF THE STUDY AREA .................................................................. 3-43 3.4.1 Seismology ....................................................................................................................... 3-43 1-1 Environmental Impact Assessment (EIA) Report Jamrani Dam Construction Division-1, Irrigation of Jamrani Dam Multipurpose Project Department, Uttarakhand 3.4.2 Report on the Microearthquake studies around Jamrani Dam Site ................................ 3-45 3.4.3 Analysis of Reservoir Induced Seismicity (RIS) possibility ................................................ 3-46 Location ............................................................................................................................................... 3-47 3.5 SOIL QUALITY ........................................................................................................................... 3-48 3.5.1 Soil and Soil Classification and physical parameters: ...................................................... 3-48 3.6 LAND USE / LAND COVER ......................................................................................................... 3-51 3.7 SITE ALTERNATIVES .................................................................................................................. 3-54 3.8 PRESENCE OF ECONOMICALLY IMPORTANT MINERAL DEPOSIT ............................................. 3-54 3.9 ARCHAEOLOGICAL / RELIGIOUS / HISTORICAL MONUMENTS ................................................. 3-54 CHAPTER 4 WATER ENVIRONMENT ........................................................................................... 4-55 4.1 INTRODUCTION ........................................................................................................................ 4-55 4.2 BASIN CHARACTERISTICS OF RIVER GOLA ................................................................................ 4-55 4.3 COMMAND AREA ..................................................................................................................... 4-55 4.4 HYDROLOGY ............................................................................................................................. 4-55 4.5 WATER QUALITY ....................................................................................................................... 4-56 CHAPTER 5 AIR AND NOISE ENVIRONMENT ............................................................................... 5-61 5.1 INTRODUCTION ........................................................................................................................ 5-61 5.2 AMBIENT AIR QUALITY ............................................................................................................. 5-61 5.2.1 Ambient Air Quality Monitoring Locations ...................................................................... 5-61 5.2.2 Ambient Air Quality Monitoring Results .........................................................................