E4512 v1 REV Public Disclosure Authorized Chongqing Small Town Integrated Water Environmental Improvement Project Comprehensive Environmental Impact Assessment Public Disclosure Authorized By: Chongqing Holly Environmental Impact Assessment Co. Ltd September 2014 Public Disclosure Authorized Public Disclosure Authorized - 1 - Name of Project: Chongqing Small Town Integrated Water Environmental Improvement Project Type of Document: Comprehensive Environmental Impact Assessment Report EA Agency: Chongqing Haoli Environmental Impact Assessment Co. Ltd Legal Representative: Kang Lin Task Team Leader: Kang Lin, Xiang Wei Task Team Members: Xiang Wei, Qiu Jianming, Chen Jing, Kang Bin - 2 - Preface ............................................................................................................................................................ 8 1 General Introduction ................................................................................................................................. 10 1.1 Project Background ......................................................................................................................... 10 1.2 Brief Description of the Project ...................................................................................................... 12 1.3 Objectives of this EIA ...................................................................................................................... 13 1.4 EIA Category of this Project ........................................................................................................ 14 1.5 Evaluation Methodology ............................................................................................................... 14 1.6 Focus of This EIA .......................................................................................................................... 14 1.6.1 Focus of Environmental Assessment on Flood control Component ............................... 14 1.6.2 Focus of Environmental Assessment on Sewage Collection Component ....................... 15 1.7 Evaluation Procedures .................................................................................................................. 15 2 Environmental Policies, Laws and Regulations and References for EIA Preparation ...................... 17 2.1 Laws and Policies ............................................................................................................................ 17 2.1.1 Relevant Domestic Laws and Policies.................................................................................. 17 2.1.2 Safeguard Policies of the World Bank and EHS Guidelines ................................................ 20 2.1.3 Assessment Standards ........................................................................................................ 21 2.2 Relevant Plans and Environmental Function Zoning ................................................................ 25 2.2.1 Relevant Plans .................................................................................................................... 25 2.2.2 Conformance of the Proposed Project with Relevant Local Policies and Plans ........... 26 2.3 Scope and Factors of Assessment ................................................................................................. 28 2.3.1 Scope of Assessment ........................................................................................................... 28 2.3.2 Impact Assessment Factors ................................................................................................ 32 2.4 Environmentally Sensitive Spots and Protection Objects ............................................................. 41 3 Project Description ............................................................................................................................... 51 3.1 Project Contents ................................................................................................................... 51 3.1.1 Basic Components ......................................................................................................... 51 3.1.2 Investment and Fund Sources ...................................................................................... 51 3.1.3 Construction Period ...................................................................................................... 51 3.1.4 Layout Plan .................................................................................................................... 51 3.2 Project Objectives ................................................................................................................. 55 3.3 Construction Methods .......................................................................................................... 55 3.3.1 Construction Process .................................................................................................... 55 3.3.2 List of Construction Methods ....................................................................................... 55 3.3.3 Introduction to Construction Methods ........................................................................ 59 3.4 Prediction of Sewage Quantity ............................................................................................. 60 3.4.1 Prediction of Sewage Quantity for Rongchang Component ........................................ 60 3.4.2 Prediction of Sewage Quantity for Shizhu Component ............................................... 61 4 Overview of Environment .................................................................................................................... 63 4.1 Current Status of Natural Environment ............................................................................... 63 4.1.1 Geological Location ....................................................................................................... 63 4.1.2 Climate and Meteorology ............................................................................................. 64 4.1.3 Topography, Landform and Geology ............................................................................ 65 4.1.4 Hydrology and Water Conservancy .............................................................................. 67 4.2 Current Status of Ecological Environment ............................................................................ 69 - 3 - 4.2.1 Flora and Fauna ............................................................................................................. 69 4.2.2 Soil Conditions and Water Loss and Soil Erosion ......................................................... 79 4.3 Current Social and Economic Status ............................................................................................... 81 4.3.1 Society .................................................................................................................................. 81 4.3.2 Industrial Economy ....................................................................................................... 84 4.3.3 Transportation ..................................................................................................................... 86 4.3.4 Tourism and Historical and Cultural Sites..................................................................... 87 4.4 Current Situation of Sewage Management in Project Area .......................................................... 92 4.5 Current Situation of Flood Control Facilities in Project Area ............................................... 93 4.6 Due Diligences for Relevant Works .................................................................................... 94 4.6.1 Due Diligence for Sewage Treatment Plant .................................................................. 94 4.6.2 Due Diligence for Sewage Pipe Network ...................................................................... 97 4.6.3 Due Diligence for Flood Control Works ........................................................................ 99 4.6.4 Due Diligence for Sludge Disposal Site ....................................................................... 100 4.6.5 Industrial Pollution Control in the Project Area ......................................................... 103 5 Current Situation of Environment Quality ......................................................................................... 104 5.1 Noise ................................................................................................................................... 104 5.2 Atmospheric Environment .................................................................................................. 106 5.3 Water Environment........................................................................................................... 107 5.4 Quality of Dredging Sludge ............................................................................................... 111 6 Environmental Impact Analysis .......................................................................................................... 113 6.1 Experiences and Lessons Learnt from Previous Projects under World Bank Loan in the Project Area ........................................................................................................................................ 113 6.2 Environmental Impact Prediction and Assessment during Construction ................................... 115 6.2.1 Prediction and Assessment of Acoustic Environmental Impact ...............................