47048-002 Environmental Impact Assessment
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Environmental Impact Assessment (Draft) Project Number: 47048-002 January 2015 People’s Republic of China: Hubei Enshi Qing River Upstream Environment Rehabilitation Project Prepared by the Enshi Tujia and Miao Autonomous Prefecture Government for the Asian Development Bank CURRENCY EQUIVALENTS (as of 31 October 2014) Currency unit – Yuan (CNY) CNY1.00 = $0.1635 $1.00 = CNY6.1145 ABBREVIATIONS ADB Asian Development Bank GHG Greenhouse gas BOD5 5-day biochemical oxygen demand GRM Grievance redress mechanism CNY Chinese Yuan HPG Hubei Provincial Government COD Chemical oxygen demand IA Implementing Agency DO Dissolved oxygen MOE Ministry of Environment EA Executing Agency PMO Project Management Office EIA Environmental impact assessment EIR Environmental Impact Report RP Resettlement Plan EIT Environmental Impact Table SOE State Owned Enterprise EMP Environmental Management Plan SPS Safeguard Policy Statement EPB Environmental Protection Bureau WHO World Health Organization FSR Feasibility Study Report WRB Water Resources Bureau FYP Five Year Plan WTP Water Treatment Plant GDP Gross domestic product WWTP Wastewater Treatment Plant WEIGHTS AND MEASURES oC degree centigrade m2 square meter dB decibel m3/a cubic meter per annum km kilometer m3/d cubic meter per day km2 square kilometer mg/kg milligram per kilogram kW kilowatt mg/l milligram per liter L liter mg/m3 milligram per cubic meter m meter t metric ton t/a ton per annum NOTE (i) In this report, "$" 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. 2 TABLE OF CONTENTS I. EXECUTIVE SUMMARY .................................................................................................................. 1 II. INTRODUCTION .............................................................................................................................. 7 A. Background ............................................................................................................................... 7 B. Project Rationale ....................................................................................................................... 7 C. The Proposed Project ................................................................................................................ 8 D. Environmental Safeguards ........................................................................................................ 9 E. Data Sources ............................................................................................................................. 9 III. POLICY, LEGAL AND ADMINISTRATIVE FRAMEWORK .............................................................10 A. Planning Context .....................................................................................................................10 B. PRC Legal and Administrative Framework .............................................................................10 C. Implementation Arrangements ................................................................................................12 D. Asian Development Bank Environmental Requirements ........................................................12 E. Assessment Standards ...........................................................................................................13 1. Evaluation against Ambient Standards .............................................................. 13 2. Evaluation Standards for Construction Activities ................................................ 14 3. Evaluation Standards for Operations ................................................................ 15 4. Area of Influence ............................................................................................ 16 IV. DESCRIPTION OF THE PROPOSED PROJECT ..........................................................................17 A. Project Overview .....................................................................................................................17 B. Output 1: Improved Water Pollution Control ...........................................................................18 1. Sewage Pipe Network: Enshi City ..............................................................................18 2. Sewage Pipe Network: Lichuan City ..........................................................................20 3. Wastewater Connections to Households ...................................................................21 4. WWTPs: Enshi City ....................................................................................................21 5. WWTP: Lichuan City ..................................................................................................23 6. WWTPs – Existing Facilities ......................................................................................25 7. Pilot Project on Non-point Source (NPS) Pollution ....................................................26 C. Output 2: Enhanced Flood Management ................................................................................26 1. Flood Control and Riverbank Remediation ................................................................31 2. River Dredging ...........................................................................................................34 3. Dredge Spoil Temporary Storage and Treatment Sites .............................................36 4. Non-structural Flood Control Measures .....................................................................40 5. River Maintenance Program ......................................................................................40 6. Wetland Creation ........................................................................................................41 7. Ancillary Facilities of River Rehabilitation ..................................................................42 8. Lichuan Water Source Protection Zone .....................................................................42 D. Landscaping Supplies and Technique .....................................................................................43 E. Land Requirements .................................................................................................................45 V. DESCRIPTION OF THE ENVIRONMENT (BASELINE DATA) ......................................................46 A. Sub-Regional Environmental Setting ......................................................................................46 1. Climate .......................................................................................................................46 2. Geology ......................................................................................................................46 3. Landform ....................................................................................................................46 4. The Qing River Basin .................................................................................................46 B. Physical Environment at the Project Sites ..............................................................................48 1. Ambient Air Quality at all Project Sites .......................................................................48 2. Noise Environment .....................................................................................................50 3. Water Quality ..............................................................................................................51 4. Water Volumes and Flooding .....................................................................................52 5. In-stream Sediment Quality ........................................................................................56 C. Biological Environment of the Project Area .............................................................................62 1. Vegetation communities and flora ..............................................................................62 2. Terrestrial Fauna ........................................................................................................65 3. Aquatic Fauna ............................................................................................................68 4. Protected Areas, reserves, and physical cultural resources ......................................69 D. Socio-economic Profile of the Project Area .............................................................................70 1. Population ..................................................................................................................70 2. Ethnic Minorities .........................................................................................................71 1 3. Public Facilities ...........................................................................................................71 4. Poverty .......................................................................................................................71 E. Climate Change .......................................................................................................................72