Environmental Impact Assessment (DRAFT) Project number: 51005-002 June 2018 People’s Republic of China: Chongqing Longxi River Basin Integrated Flood and Environmental Risk Management Project Prepared by the Chongqing Municipal Government for the Asian Development Bank 2 CURRENCY EQUIVALENTS (as of March 2018) Currency Unit - Yuan (CNY) CNY 1.00 = US$ 0.16 US$ 1.00 = CNY 6.32 ABBREVIATIONS ADB - Asian Development Bank LIC - Loan implementation consultant CNY - Chinese Yuan MEP - Ministry of Environmental Protection CS-EMP - Construction Site EMP MSW - Municipal Solid Waste CSC - Construction supervision company Mu - Chinese land unit (1 ha = 15 mu) EA - Executing Agency NDRC - National Development and Reform Commission EHS - Environmental, health and safety OPF - Operators of project facility EIA - Environment Impact Assessment PIC - Project Implementation Consultant EMA - Environmental monitoring agency PMO - Project Implementation Unit EMP - Environmental management plan PMO - Project Management Office EPB - Environmental Protection Bureau PPTA - Project Preparatory Technical Assistance EPD - Environmental protection department PRC - People’s Republic of China FERM - Flood and environmental risk management REA - Rapid environment assessment FSR - Feasibility Study Report SPS - Safeguard Policy Statement GAP - Gender action plan TOR - Terms of Reference GDP - Gross Domestic Product TRTA Transaction Technical Assistance GHG - Greenhouse Gas WSCP - Water and soil conservation plan GRM - Grievance redress mechanism WSP - Water Supply Plant IA - Implementing Agency LAR - Land Acquisition and Resettlement WEIGHTS AND MEASURES oC degree centigrade m2 square meter dB decibel m3/a cubic meter per annum g gram m3 cubic meter ha hectare m3/d cubic meter per day km kilometer m3/s cubic meter per second km2 square kilometer mg/l milligram per liter kW kilowatt mg/m3 milligram per cubic meter L liter mm millimeter LAeq Equivalent continuous A-weighted sound t metric ton MW megawatt t/d metric ton per day m meter t/a ton per annum NOTE In this report, "$" refers to US dollars. This environmental impact assessment is a document of the borrower. The views expressed herein do not necessarily represent those of ADB's Board of Directors, Management, or staff, and may be preliminary in nature. Your attention is directed to the “terms of use” section of this website. In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of any territory or area. 3 Table of Contents I. EXECUTIVE SUMMARY ....................................................................................................................................... 7 A. INTRODUCTION ......................................................................................................................................................... 7 B. BACKGROUND .......................................................................................................................................................... 7 C. PROJECT COMPONENTS .............................................................................................................................................. 8 D. PROJECT BENEFITS AND FEATURES ................................................................................................................................ 9 E. BASELINE ENVIRONMENT .......................................................................................................................................... 10 F. POTENTIAL ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES .................................................................................. 11 G. PUBLIC CONSULTATION AND GRIEVANCE REDRESS MECHANISM ...................................................................................... 13 H. CLIMATE CHANGE ................................................................................................................................................... 13 I. ENVIRONMENTAL MANAGEMENT PLAN....................................................................................................................... 14 J. RISKS AND ASSURANCES ........................................................................................................................................... 14 K. CONCLUSION.......................................................................................................................................................... 14 II. POLICY, LEGAL AND ADMINISTRATIVE FRAMEWORK ....................................................................................... 15 A. OVERVIEW ............................................................................................................................................................. 15 B. PRC ENVIRONMENTAL LAWS, REGULATIONS, GUIDELINES, AND STANDARDS ..................................................................... 15 C. INTERNATIONAL AGREEMENTS ................................................................................................................................... 17 D. APPLICABLE ADB POLICIES AND WORLD BANK’S EHS .................................................................................................... 17 E. ASSESSMENT STANDARDS FOR PROPOSED PROJECT COMPONENTS ................................................................................... 18 F. DOMESTIC EIA PREPARATION AND APPROVAL .............................................................................................................. 23 III. DESCRIPTION OF THE PROJECT ......................................................................................................................... 24 A. RATIONALE ............................................................................................................................................................ 24 B. IMPACT, OUTCOME AND OUTPUTS ............................................................................................................................. 26 C. DESIGN SCHEME AND CONSTRUCTION METHODS .......................................................................................................... 31 D. ASSOCIATED FACILITIES ............................................................................................................................................ 38 IV. DESCRIPTION OF THE ENVIRONMENT (BASELINE) ............................................................................................ 39 A. OVERVIEW OF CHONGQING MUNICIPALITY .................................................................................................................. 39 B. ENVIRONMENTAL SETTING OF LONGXI RIVER BASIN ....................................................................................................... 39 C. ENVIRONMENTAL BASELINE FOR CHANGSHOU DISTRICT ................................................................................................. 52 D. ENVIRONMENTAL BASELINE FOR DIANJIANG COUNTY ..................................................................................................... 57 E. ENVIRONMENTAL BASELINE OF LIANGPING DISTRICT ...................................................................................................... 61 V. ANTICIPATED IMPACTS AND MITIGATION MEASURES ..................................................................................... 67 A. PROJECT AREA OF INFLUENCE AND SENSITIVE RECEPTORS ............................................................................................... 67 B. ANTICIPATED PROJECT BENEFITS AND POSITIVE IMPACTS ................................................................................................ 71 C. PRE-CONSTRUCTION PHASE ...................................................................................................................................... 73 D. CONSTRUCTION PHASE ............................................................................................................................................ 74 (1) GEOLOGY AND SOIL ............................................................................................................................................ 74 (2) WATER QUALITY, WASTEWATER MANAGEMENT AND HYDROLOGY .............................................................................. 78 (3) SEDIMENT DREDGING .......................................................................................................................................... 80 (4) AIR QUALITY ...................................................................................................................................................... 83 (5) NOISE .............................................................................................................................................................. 84 (6) VIBRATION ........................................................................................................................................................ 87 (7) SOLID WASTE .................................................................................................................................................... 87 (8) ECOLOGY .......................................................................................................................................................... 89 (9) SOCIAL ISSUES ...................................................................................................................................................