Technical Assistance Consultant’s Report Project Number: 44020 March 2012 People’s Republic of China: Gansu Urban Infrastructure Development and Wetland Protection Project FINAL REPORT (Volume V of V) Prepared by HJI Group Corporation in association with Easen International Company Ltd For the Gansu Provincial Finance Bureau This consultant’s report does not necessarily reflect the views of ADB or the Government concerned, and ADB and the Government cannot be held liable for its contents. (For project preparatory technical assistance: All the views expressed herein may not be incorporated into the proposed project’s design. Gansu Urban Infrastructure Development and Supplementary Appendix 11 Wetland Protection Project (TA 7609-PRC) Final Report Supplementary Appendix 11 Dingxi Subproject Environmental Impact Assessment Report ADB Gansu Dingxi Urban Road Infrastructure Development Project Environmental Impact Assessment Report Gansu Provincial Environmental Science Research Institute, Lanzhou August 2011 Environmental Impact Assessment for ADB Urban Infrastructure Development Project Dingxi TABLE OF CONTENTS I. OVERVIEW .................................................................................................................................... 1 1.1 Evaluation Criterion ............................................................................................................ 1 1.1.1 Environmental Function Zoning .............................................................................. 1 1.1.2 Environment Quality Standards .............................................................................. 1 1.1.3 Pollutant Emission Standards ................................................................................. 3 1.2 Identification of Main Environmental Problems and Environmental Impact Factors .......... 4 1.2.1 Identification of Main Environmental Problems ....................................................... 4 1.2.2 Identification and Screening of Environmental Impact Factors ............................... 4 1.3 The Main Contents of Assessment ..................................................................................... 8 1.4 The Class and Scope of Assessment ................................................................................. 8 1.4.1 Assessment Class ................................................................................................... 8 1.4.2 Assessment Scope ................................................................................................. 9 1.5 The Focus and Time of Assessment ................................................................................ 10 1.5.1 Assessment Time .................................................................................................. 10 1.5.2 Assessment Focus ................................................................................................ 10 1.6 Environmental Protection Targets and Environmental Sensitive Points .......................... 10 1.6.1 Environmental Protection Targets ......................................................................... 10 1.6.2 Distribution of Environmental Sensitive Points ..................................................... 11 II. PROJECT OVERVIEW AND ANALYSIS .................................................................................... 14 2.1 Loan Project Overview ..................................................................................................... 14 2.1.1 Project Name and Construction Nature ................................................................ 14 2.1.2 Project Location .................................................................................................... 14 2.1.3 Road Routines and Major Control Points .............................................................. 14 2.1.4 Major Project Contents .......................................................................................... 15 2.1.5 Main Technical Standards .................................................................................... 15 2.2 Project Construction Scale ............................................................................................... 19 2.2.1 Scale of Road Works and Engineering Technical Specifications ......................... 19 2.2.2 Road Ancillary Works ............................................................................................ 27 2.2.3 Crossing Ditch Bridge Engineering ....................................................................... 28 2.2.4 Drainage Works .................................................................................................... 29 2.2.5 Lighting Engineering ............................................................................................. 31 2.2.6 Road Service Function Optimization ..................................................................... 31 2.3 Project Investment and Financing .................................................................................... 32 2.4 Project Using Land, Demolition, and Resettlement and the Amount of Earthwork .......... 33 2.4.1 Project Using Land ................................................................................................ 33 2.4.2 Project Demolition and Resettlement .................................................................... 34 2.5 Project Environmental Impact Analysis ............................................................................ 34 2.5.1 Project Construction Period Environmental Impact Analysis ................................ 34 2.5.2 Operation Period Pollution Sources and Environmental Impact Analysis ............ 39 III. FEASIBILITY ANALYSIS ............................................................................................................ 42 3.1 Project Planning Conformity ............................................................................................. 42 3.1.1 The Conformity Analysis of Gansu Province Road Network Planning ................. 42 i Environmental Impact Assessment for ADB Urban Infrastructure Development Project Dingxi 3.1.2 The Conformity Analysis of New Urban Planning ................................................. 43 3.1.3 The Conformity Analysis of Land Utilization Planning .......................................... 43 3.1.4 Dingxi Conformity Analysis for Environmental Protection during the Plan ........... 43 3.2 Zero Scheme Analysis ...................................................................................................... 44 3.2.1 Zero Scheme Alternatives ..................................................................................... 44 3.2.2 Analysis for Social Impact ..................................................................................... 44 3.2.4 Environmental Impact Analysis ............................................................................. 45 3.2.6 Contrast Analysis of Zero Schemes and Planning of the Implementation Scheme 47 3.3 The Comparison, Selection, and Optimization of the Scheme ......................................... 47 3.3.1 The Comparison and Selection of Scheme .......................................................... 48 IV. THE SITUATION OF THE CONSTRUCTION AREA ENVIRONMENT ...................................... 50 4.1 The Situation of the Natural Environment ........................................................................ 50 4.1.1 The Geographical Position .................................................................................... 50 4.1.2 Landforms ............................................................................................................. 50 4.1.3 Geological Structure .............................................................................................. 50 4.1.4 Hydrology .............................................................................................................. 51 4.1.5 Flood Discharge River ........................................................................................... 52 4.1.6 Natural Ecology ..................................................................................................... 52 4.1.7 Natural Hazard ...................................................................................................... 53 4.1.8 Earthquake ............................................................................................................ 53 4.1.9 Climate and Weather ............................................................................................ 53 4.2 Social Environment Situation ........................................................................................... 54 4.2.1 Administrative Districts and Population Distribution ............................................. 54 4.2.2 Industry Profiles .................................................................................................... 54 4.2.3 Agricultural Production Situation ........................................................................... 55 4.2.4 Transportation and Communication ...................................................................... 55 4.2.5 Culture Education .................................................................................................. 55 V. INVESTIGATION AND EVALUATION OF ENVIRONMENTAL QUALITY STATUS .................. 56 5.1 Environmental Quality Overview ...................................................................................... 56 5.1.1 Surface Water Environmental Quality Overview ..................................................