Public Disclosure Authorized World Bank Financed Guilin Lingui District (West) WWTP Upgrading and Improvement Project Public Disclosure Authorized Environmental Impact Report Public Disclosure Authorized Executive agency: Guilin Sewerage Company Prepared by: Beijing Zhongzihuayu Environmental Public Disclosure Authorized Protection Technology Co., Ltd. Certificate No.: State Class A EIA Certificate No. 1051 Date: December 2018 Contents 1. Introduction ....................................................................................................... 1 1.1 Project Introduction ........................................................................................ 1 1.2 Rationale .......................................................................................................... 2 1.3 Environmental functional zoning and evaluation criteria ............................ 4 1.4 Environmentally sensitive sites and protection targets ............................. 10 2. Engineering Analysis ...................................................................................... 11 2.1 Overview of existing facilities ...................................................................... 11 2.2 Overview of proposed project ...................................................................... 12 3. Due Diligence of Linked Projects ................................................................... 20 3.1 Towngas China (Guilin) Co., Ltd. ................................................................. 20 3.2 Guilin Shangyao WWTP sludge disposal project ....................................... 21 3.3 Guilin Lingui District (East) WWTP .............................................................. 23 4. Environmental Baseline Survey ..................................................................... 25 4.1 Environmental Performance Survey of the Existing Facilities .................. 25 4.2 Natural Environment ..................................................................................... 27 4.3 Social Environment ....................................................................................... 29 4.4 Status Quo Investigation and Evaluation of Environmental Quality ......... 31 5. Environmental Impact Assessment and Mitigation Measures ..................... 39 5.1 Environmental impact analysis and mitigation measures in the construction period ............................................................................................. 39 5.2 Environmental impact analysis and mitigation measures in the operation stage ..................................................................................................................... 46 5.3 Equipment maintenance and management measures ............................... 53 5.4 Emergency response measures for fuel gas leakage ................................ 54 6. Social impacts of land acquisition and resettlement ................................... 55 7. Alternative Analysis ........................................................................................ 56 7.1 Purposes and principles ............................................................................... 56 I 7.2 With-/Without-project analysis ..................................................................... 56 7.3 Comparison of alternatives .......................................................................... 57 8. Public participation and information disclosure .......................................... 64 8.1 Purposes, approaches and scope of public participation ......................... 64 8.2 Information disclosure .................................................................................. 64 8.3 Public participation ....................................................................................... 68 9. Environmental Management Plan .................................................................. 74 9.1 Purposes of Environmental Management Plan ........................................... 74 9.2 Environment Management Agencies and Their Responsibilities ............. 74 9.3 Environmental Impacts and their Mitigation Measures .............................. 78 9.4 Environmental Monitoring Plan.................................................................... 86 9.5 Monitoring training plan ............................................................................... 89 9.6 Reporting mechanism nd requirements for implementation of the Environmental Management Plan ...................................................................... 92 10. EIA Conclusions and Recommendations .................................................... 94 Attached Figures Figure 1: Project Location Map Figure 2: Project Layout Plan Figure 3: Process Flowchart of the Project Figure 4: Map of Local Environment and Distribution of Environmental Protection Targets in the Project Area Figure 5: Map of Distribution of Air and Noise Environment Status Quo Monitoring Sites Figure 6: Map of Distribution of Surface Water Environment Status Quo Monitoring Sites Figure 7: Location Map of Linked Projects Annexes II Annex 1: Approval by Guangxi Zhuang Autonomous Region Environmental Protection Bureau of the Environmental Impact Report of Guangxi Guilin Xicheng District Wastewater Management Project Annex 2: Approval by Guangxi Zhuang Autonomous Region Environmental Protection Department of the Request for Final Acceptance of Environmental Protection of Guangxi Guilin Xicheng District Wastewater Management Project Annex 3: Approval by Guilin Lingui District Environmental Protection Bureau of the Environmental Impact Report of Lingui District (West) WWTP Upgrading and Improvement Project Annex 4: Approval by Guilin Municipal Environmental Protection Bureau of the Environmental Impact Assessment Report of Lingui New District WWTP Upgrading, Improvement and Modification Project Annex 5: Quality Status Monitoring Report of Air Environment Annex 6: Quality Status Monitoring Report of Surface Water Environment Annex 7: Quality Status Monitoring Report of Acoustic Environment Annex 8: Approval of the Environmental Impact Assessment Report of Guilin Shangyao WWTP Annex 9: Approval of Final Acceptance of Environmental Protection of Guilin Shangyao WWTP Annex 10: Sludge Test Reports of Lingui District WWTP III 1. Introduction 1.1 Project Introduction Accompanying the relocation of Guilin Municipal Government to Lingui District and the gradual settlement of various enterprises into Guilin Xicheng Economic Development Zone is the growth of working and residential population in Lingui District and the resulted increase of domestic sewage. Lingui District Wastewater Treatment Plant (WWTP) is responsible for collection and treatment of domestic sewage in Lingui District. Since it was put into operation in 2008, many WWTP equipment have suffered from various degrees of damage or aging, resulting in a decline in sewage treatment efficiency and consequent impacts, to a certain extent on the sewage treatment work. The increase of resident population of Lingui District has been accompanied with the increase of sewage and sludge. As a result, the existing treatment process of the WWTP is found difficult to satisfy the new national requirements of environmental protection. According to the provisions of the National Water Pollution Prevention and Control Plan and the Work Arrangements of Guilin Municipality in Implementing the Water Pollution Prevention and Control Action Plan, the effluent of the municipal WWTPs must satisfy Class 1A standard by the end of 2018. Therefore, the construction of the Guilin Municipal Wastewater Treatment Plant (West) Upgrading and Renovation Project has become very necessary. Lingui District Wastewater Treatment Plant is divided into two parts, the East WWTP and the West WWTP. The East WWTP has a treatment capacity of 30,000 tons/day and adopts the A2O process to achieve an effluent quality specified in the “Discharge Standard of Pollutants for Municipal WWTPs” (GB18918-2002). Formerly Lingui Xicheng District Wastewater Treatment Plant built in August 2005 and completed and put into operation in December 2008, it adopts the CAST process and has a treatment capacity of 30,000 m3/d to achieve effluent quality standard of Class 1B specified in the “Discharge Standard of Pollutants for Municipal WWTPs” (GB18918-2002). However, due to the outdated equipment in the West WWTP, its treatment capacity can no longer meet the needs of Lingui District. Therefore, it is urgently needed to upgrade and improve Lingui District (West) Wastewater Treatment Plant and replace the old equipment and implement enclosed deodorization of the related facilities. The East and West WWTPs are jointly responsible for treatment of wastewater in Lingui District, with the West WWTP mainly collecting domestic sewage in the urban area while the East WWTP mainly collecting sewage from parts of the urban area and Miaoling Community. About 95% of the sewage collected by the East WWTP is domestic sewage and the remaining 5% industrial wastewater (It is required that the industrial wastewater must reach Class 1 standard of the Integrated Wastewater Discharge Standard (GB8978-1996) before being connected to the municipal pipelines and transported to the municipal WWTPs for treatment). 1 In order to reduce the discharge of urban sewage pollutants, improve water environment quality of the watershed and guarantee physical health of residents and speed up economic development in the urban area of Guilin, Guilin Municipal Drainage Co., Ltd.