Draft SEIA: PRC: Xiguan Reservoir Subproject, Guiyang Integrated

Summary Environmental Impact Assessment Final Draft Project Number: 38594 August 2011 PRC: Guiyang Integrated Water Resources Management (Sector) Project Prepared by the Tianjin municipal government for the Asian Development Bank. 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. SUMMARY ENVIRONMENTAL IMPACT ASSESSMENT (Updated) XIGUAN RESERVOIR SUBPROJECT GUIYANG INTEGRATED WATER RESOURCES MANAGEMENT PROJECT IN THE PEOPLE’S REPUBLIC OF CHINA June 2011 CURRENCY EQUIVALENTS (As of 19 August 2011) Currency Unit – CNY CNY 1.00 = $0.1565 $1.00 = CNY 6.3880 ABBREVIATIONS ADB – Asian Development Bank CNY – Chinese yuan EA – environmental assessment EIA – environmental impact assessment EMP – environmental management plan EPB – environmental protection bureau ESSD – Environment and Social Safeguard Division ESSG – Environment and Social Safeguard Group GIWRMP – Guiyang Integrated Water Resources Management Project GMG – Guiyang municipal government IA – implementing agency IEE – initial environmental examination IPM – integrated pest management LRB – land resources bureau MEP – Ministry of Environmental Protection O&M – operation and maintenance PMO – project management office PRC – People’s Republic of China RP – resettlement plan RMB – Chinese yuan SEAF – summary environmental assessment framework SEIA – summary environmental impact assessment SIEE – summary initial environmental examination TA – technical assistance WRB – water resources bureau WEIGHTS AND MEASURES ha – hectare km – kilometer km2 – square kilometer mg/l – milligram per liter 2 m – square meter mm – millimeter m3/s – cubic meter per second mu – 1 mu = 1/15 ha NOTE In the report, “$” refers to US dollars. 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. CONTENTS I. INTRODUCTION II. DESCRIPTION OF THE PROJECT III DESCRIPTION OF THE ENVIRONMENT A. General Project Setting and Physical Environment B. River System and Hydrology C. Water Quality D. Ecological Environment E. Social and Economic Conditions IV. ALTERNATIVES A. With or Without the Project B. Alternative Water Sources C. Alternative Sites for Dam D. Alternative Types for Dam E. Other alternatives V. ANTICIPATED ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES A. Positive impacts B. Identification of Adverse Environmental Impacts C. Environmental Impacts During Construction and Mitigation Measures D. Assessment of Important Environmental Impacts and mitigation Measures E. Moderate Environmental Impacts and Mitigation Measures VI. ECONOMIC ASSESSMENT VII ENVIRONMENTAL MANAGEMENT PLAN A. Environmental Management B. Environmental Monitoring C. Institutional Enhancement VIII PUBLIC CONSULTATION AND INFORMATION DISCLOSURE A. Public Consultation during Project Preparation B. Future Plans for Public Consultation & Information Disclosure IX. CONCLUSIONS A. Subproject Benefits B. Potential Adverse Impacts and Mitigation Measures C. Environmental Management Plan and Implementation D. Conclusions ATTACHMENTS Attachment 1: Environmental Management Plan FIGURES Figure 1 Location of Xiguan Reservoir Subproject Figure 2 Schematic map of subproject components Figure 3 Subproject alternative water sources TABLES: Table 1 Key Indexes of Xiguan Reservoir Subproject Table 2 Water Quality of Anliu River in the Subproject Area Table 3 Flora and fauna in the Subproject Area Table 4 Major social and economic conditions in subproject area Table 5 Comparison of Environmental Impacts of Dam Sites Table 6 Environmental Impacts Forecasting and Rating Table 7 Land Requisition Table 8 Change in Farmland in three affected villages Table 9 Investigation Results on Downstream Water Users Table 10 Environmental benefits and costs estimates I．INTRODUCTION 1. Purpose of the SEIA The Summary Environmental Impacts Assessment report (SEIA) was prepared based on the Chinese version Environmental Impacts Assessment report prepared for the Xiguan Reservoir subproject, one of the 42 (original 46) reservoir subprojects included in the Guiyang Integrated Water Resources Management Project (GIWRMP, the Project). The SEIA is to be submitted to ADB for review and disclosure on ADB website. 2. The GIWRMP A loan agreement has been signed by the ADB and the PRC Government on a loan of USD150 million for the GIWRMP in November 2009 to support Guiyang Municipality in addressing it’s increasing water shortage and water resources management issues. The GIWRMP includes the following subprojects: i) establishment of 1 medium-sized and 41 small-sized reservoirs; ii) rehabilitation and upgrading of nine irrigation systems; iii) provision of 127,890 small water storage structures; and iv) protection from soil and water losses in the upper catchments of the water sources (800 km2). 3. Environmental Assessment for the GIWRMP Following PRC regulations, a general Environmental Impacts Report (EIR) for the overall project was prepared in August 2008, which had been approved by the Ministry of Environmental Protection (MEP) on 19 January 2009. This approval, according to the PRC regulations, covers all the subprojects under the project and no new environmental assessment approvals are needed for all the follow up subprojects including the Xiguan Reservoir Subproject. 4. For ADB’s environmental assessment purposes, the Project has been classified as Category A. The Project will be implemented under a sector loan modality, and six core subprojects have been prepared to ADB standards. A summarized SEIA for 3 core reservoir subprojects and a summarized SIEE for the other 3 core subprojects were completed in 2006, which have been reviewed by ADB environmental specialists, and posted on the ADB website on 21 August 2006. 5. Summary Environmental Assessment Framework For the remaining non-core subprojects, a Summary Environmental Assessment Framework (SEAF) was prepared and included, as Attachment 11 in the “Memorandum of Understanding (ADB appraisal mission with Guiyang Government, March 2009)”. The SEAF describes principle environmental assessment requirements for the non-core subprojects including environmental screening requirements for the reservoir subprojects. 6. Environmental Screening for Non-core Reservoir Subprojects In accordance with the SEAF, an environmental screening was carried out for the non-core reservoir subprojects in the period of September to December 2009 by Guiyang PMO and local PMOs with assistance of ADB’s environmental consultant and 5 of the remaining 39 non-core reservoir subprojects were 1 rated Category A and 34 Category B, which had been confirmed by ADB on Dec. 17, 2009. The Xiguan Reservoir Subproject is one of the 5 subprojects rated Category A and, according to the SEAF, a Chinese version of EIA and an English version of SEIA for the subproject needs to be prepared and submitted to ADB for review and approval before subproject implementation. 7. Bases of the SEIA The SEIA is primarily based on information contained in the Chinese EIA report for the subproject, which was prepared by an environmental assessment team from Guizhou Provincial Environmental Design Institute (GEDI) engaged by the Guiyang PMO. 8. The Chinese EIA and this SEIA were prepared in accordance with both PRC environmental laws and regulations and ADB environmental polices as well as with both PRC and ADB guidelines on environmental assessment. II. DESCRIPTION OF THE SUBPROJECT 9. The Xiguan Reservoir is located in Qingzhen City of Guiyang Municipality as shown in Figure 1. The reservoir will have a total storage capacity of 4.77 million m3 and a catchment area of 57.1km². The major output of the Xiguan reservoir subproject include: i) a reservoir which consists of a concrete gravity dam with a height of 29.9m, ii) two irrigation canals with a total length of 18.585km (rehabilitation), iii) a pumping station with a capacity of 18,900 m3 /day; and iv) water transmission pipelines/siphon with a total length of 4324.9m. Figure 2 shows the schematic map of major subproject components and Table 1 shows the major components and indexes of the subproject. 10. Major objectives of the subproject are to provide annually water supply of i) 5.70 million m3 to the Baihuayuan industrial zone for industrial consumption and ii) 1.62 million m3 to downstream 2,950 mu farmland for irrigation. The total cost is estimated to be CNY 123.7936 million. 11. The reservoir would inundate a total area of 786.39mu (52.43ha) land and the subproject needs for requisition permanently 873.4mu (58.23ha) land, which would affect 855 persons of which 362 persons need to be relocated (A Resettlement Plan is being prepared in accordance with ADB requirements). The subproject is planned to be implemented in 24 months. 2 Table 1: Major Components and Indexes of Xiguan Reservoir Subproject No Unit Quantity 1. Reservoir 1.1 Dam height m 29.9 1.2 Dam type Concrete gravity 1.3 Dam crest Length m 150 1.4 Reservoir catchment area km2 57.1 1.5 Average river flow m3/s 1.14 1.6 Reservoir storage capacity m3 4.77 million 2. Irrigation canal (rehabilitation) 2.1 Yuejin canal Km 10.0 2.2 Caishui Canal Km 8.585 2.3 Annual irrigation supply m3 1.62 million 3. Water supply scheme 3.1 Pumping station m3/d 18,900 3.2 Water

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