E2450 V4

Liuzhou Environment Management Project II Public Disclosure Authorized Restructured Project

Environmental Impact Report

Public Disclosure Authorized

Public Disclosure Authorized Project Implementation Unit: Liuzhou Municipal Wastewater Treatment Co., Ltd. Prepared by: Liuzhou LiuHuan Environmental Protection Technology Co., Ltd. Certificate No.: GHPZYZ No. 2912 Drafted in: September 2014

Public Disclosure Authorized

ABBREVIATIONS AND ACRONYMS

LZEMP II Liuzhou Environment Management Project II WWTP Wastewater Treatment Plant LZSDC Liuzhou Sludge Disposal Center

TABLE OF CONTENTS

1 OVERVIEW ...... 1

1.1 BACKGROUND ...... 1

1.2 OVERVIEW OF ENVIRONMENTAL ASSESSMENT FINAL REPORT ...... 2

1.3 SCOPE OF ENVIRONMENTAL ASSESSMENT, ASSESSMENT PERIOD AND ENVIRONMENTAL

PROTECTION GOALS ...... 4

1.4 ENVIRONMENTAL IMPACT FACTORS AND ASSESSMENT FACTORS ...... 9

1.5 ENVIRONMENTAL POLICIES AND REGULATIONS DOCUMENTS ...... 10

2 PROJECT DESCRIPTION ...... 16

2.1 PROJECT NAME ...... 16

2.2 PLANT (FIELD) SITE AND LAND ACQUISITION AND OCCUPATION OF THE PROPOSED PROJECT .. 16

2.3 PROJECT CONSTRUCTION PLAN ...... 17

2.4 WORKS ASSOCIATED WITH THE PROJECT...... 21

2.5 PROJECT INVESTMENT ESTIMATION ...... 22

2.6 PROJECT IMPLEMENTATION PLAN ...... 22

3 REGIONAL ENVIRONMENTAL PROFILE AROUND THE CONSTRUCTION PROJECT ...... 24

3.1 OVERVIEW OF NATURAL ECOLOGICAL ENVIRONMENT ...... 24

3.2 SOCIAL ENVIRONMENT ...... 26

3.3 CURRENT POLLUTANT DISCHARGE OF WWTPS ...... 27

3.4 SURVEY AND EVALUATION OF ENVIRONMENTAL QUALITY STATUS ...... 33

3.5 DELINEATION OF DRINKING WATER SOURCE PROTECTION AREAS IN LIUZHOU ...... 40

3.7 OVERVIEW OF POLLUTION SOURCES AROUND THE PROJECT ...... 41

4 ENVIRONMENTAL IMPACT ASSESSMENT ...... 43

4.1 ENVIRONMENTAL IMPACT ANALYSIS DURING CONSTRUCTION PHASES ...... 43

4.1.4 ENVIRONMENTAL IMPACT ANALYSIS OF SOLID WASTES DURING CONSTRUCTION PERIOD ..... 50

4.2 ENVIRONMENTAL IMPACT ANALYSIS DURING OPERATION ...... 52

4.3 ANALYSIS ON SOCIAL ENVIRONMENTAL IMPACT ...... 71

4.4 ENVIRONMENTAL RISK ASSESSMENT ...... 71

4.4.1 ENVIRONMENTAL RISK IDENTIFICATION ...... 71

4.4.2 RISK ACCIDENT ANALYSIS ...... 72

4.4.3 ENVIRONMENTAL RISK ASSESSMENT ...... 73

4.4.4 ACCIDENT PREVENTION MEASURES AND COUNTERMEASURES ...... 73

4.5 CLEANER PRODUCTION ...... 74

5 ANALYSIS OF ALTERNATIVE PROGRAMS ...... 77

5.1 PURPOSES AND PRINCIPLES OF COMPARISON AND SELECTION ANALYSIS ...... 77

5.2 ZERO PROGRAM ANALYSIS ...... 77

5.3 COMPARISON AND SELECTION ANALYSIS ON WWTP PROGRAM ...... 78

6 PUBLIC PARTICIPATION AND INFORMATION DISCLOSURE ...... 83

6.1 PURPOSE, METHOD AND SCOPE ...... 83

6.2 INFORMATION DISCLOSURE ...... 83

6.3 PUBLIC PARTICIPATION AND SURVEY ...... 87

TABLE 6.6 SURVEY OF PUBLIC PARTICIPATION ...... 94

TABLE 6.8 STATISTICAL TABLE FOR CONTENT OF SURVEY AND SURVEY RESULTS

RELATING TO PUBLIC PARTICIPATION ...... 97

7 ENVIRONMENTAL MANAGEMENT PLAN ...... 100

7.1 PURPOSE OF ENVIRONMENTAL MANAGEMENT PLAN ...... 100

7.2 ENVIRONMENTAL MANAGEMENT MECHANISMS AND RESPONSIBILITIES ...... 100

7.3 MEASURES FOR PREVENTION AND MITIGATION OF ENVIRONMENTAL RISKS ...... 103

7.4 INVESTMENT ESTIMATION FOR ENVIRONMENTAL MITIGATION MEASURES ...... 104

7.5 ENVIRONMENTAL MONITORING PLAN ...... 105

7.6 REPORTING SYSTEM OF ENVIRONMENTAL MANAGEMENT PLAN ...... 107

7.7 ENVIRONMENTAL MANAGEMENT TRAINING PROGRAM ...... 109

8 CONCLUSIONS OF ENVIRONMENTAL ASSESSMENT ...... 110

LZEMP II - Restructured Project

1 Overview 1.1 Background 1.1.1 Development strategy of the government and project sources Liuzhou, as an ancient city with two thousand one hundred years of history, was the premise for the prefecture, county and government in the history, and was approved by the State Council in 1977 as a tourist open city. Liuzhou city, is located at the central north of Guangxi Zhuang Autonomous Region, and in the middle reaches of Liujiang River; its geographical location is east longitude 108° 50' to 109° 44', and north latitude 23° 54' to 24° 50'. Liuzhou’s administrative jurisdiction areas include four districts (Chengzhong District, Yufeng District, Liunan District and Libei District), Liudong New District and six counties (Liujiang County, Liucheng County, Sanjiang County, Rongan County, Rongshui County and Luzhai County), with a total an area of 18,707 square kilometers. Liuzhou, an important industrial city of Guangxi Zhuang Autonomous Region, has always been a hub of agricultural and sideline products and industrial products in Guangxi, and is the main channel of people flow and trade flow with relatively developed industry and business in South Central China and Southwest region of China. Hunan-Guangxi, Hunan-Guizhou and Zhicheng rail lines intersect herein; waterway can reach Guangzhou, people here can fly to Guangzhou and Chengdu and the highways extend in all directions. Since the reform and opening up, Liuzhou city’s economic and social and urban construction has being rapidly developed, the urban functions are gradually improved, the adjustment of industrial structure is accelerated, high-tech industries are rapidly developing, and certain results in the upgrading of traditional industries has been achieved. With economic development and the expansion of the city, wastewater quantity of urban areas in Liuzhou is growing, and with continuous improvement in the wastewater collection pipe network within the scope of wastewater treatment plants (WWTP), the quantity of wastewater into Liuzhou Longquanshan WWTP and Sewage Baisha WWTP will rapidly increase, and will exceed the size of the existing design, so that the existing treatment capacity cannot meet the needs of urban construction and development, which will lead to a lot of untreated wastewater directly into Liujiang River, thus seriously affecting the industrial and agricultural development, and especially posing a threat to the safety of drinking water sources. Rapid development of the city and a declining water quality of the environment have become increasingly prominent, which has caused great attention of the autonomous region and municipal government. The Party Committee of Guangxi Zhuang Autonomous Region, and the regional government issued a decision on comprehensively promoting the construction of urban wastewater and domestic garbage disposal facilities (GF [2008] No. 18) and issued the notification of Guangxi Zhuang Autonomous Region on comprehensively promoting the construction of urban wastewater and domestic garbage disposal facilities (GZF [2008] No. 26), to comprehensively promote the construction of the region's urban wastewater and domestic garbage disposal facilities.

1 LZEMP II - Restructured Project

Successful implementation of LZEMP can not only improve the quality of the water environment in Liuzhou and the investment environment, protect precious water resources and improve the environmental quality of life of urban residents, but also can have an extremely important role in sustainable development of Liuzhou city. Therefore, successive governments of Liuzhou have focused on the project as a top priority task in governmental work, but a shortage of the building funds has plagued the municipal government, and has also restricted the pace of building of comprehensive water environment governance in Liuzhou. Since the 18th Party Congress, Liuzhou has also ushered in a new round of economic construction boom, and the municipal finance has leapt to a new level; under the background of increased efforts to wastewater treatment fees, investment market being fully activated and many other favorable factors, Liuzhou government has determined to use foreign capital for launching LZEMP II - Restructured project, including Baisha WWTP II and Longquanshan WWTP III. If such projects can be successfully implemented, it will thoroughly improve the pollution of the rivers, brooks and gullies in the city and Liujiang River in Liuzhou section, and create a good environment for long-term, stable and long-lasting sustainable development of Liuzhou. LZEMP II- Restructured Project has been estimated a total investment of RMB 405,588,800. In order to accelerate the pace of wastewater treatment, the World Bank-Funded $ 49.65 million has been proposed, and the total loan is equivalent to RMB 302,865,000. 1.1.2 Contribution of the World Bank The World Bank and Liuzhou city have had a good working relationship in the urban environmental construction, and have made a positive contribution to improving the part of the urban environmental infrastructure and raising the level of urbanization. On August 11, 2005, the Ministry of Finance and the World Bank signed a loan agreement. This is also the first World Bank Loan Project in Liuzhou, and the project covers wastewater treatment, industrial pollution control, solid waste collection system and public toilets construction. The World Bank in accordance with the progress of construction disbursed the loan to ensure completion of all projects before December 2010. On August 11, 2010, the Ministry of Finance and the World Bank signed another loan agreement, that is, the second World Bank loan project of Liuzhou, and the project covers wastewater collection and treatment and sludge treatment. According to the progress of construction, the World Bank disburses the loan, to ensure that the project will be completed before the end of May 2017. Through these years of project implementation, the loans have been put to good use, and projects are being promoted orderly and fast, which has played a key role in improving the quality of the environment in Liuzhou. 1.2 Overview of Environmental Assessment Final Report 1.2.1 Purpose of environmental assessment According to the provisions of the Law of the People's Republic of China on Appraising of

2 LZEMP II - Restructured Project

Environment Impacts, Regulations on the Administration of Construction Project Environmental Protection, and Notification on strengthening the management of Environmental Impact Assessment on construction projects funded by international financial organizations and the requirements of the World Bank’s Safeguard Policies, as well as domestic and the World Bank’s Environmental Impact Assessment procedures, the positive environmental impacts from the implementation of the project are reviewed, the negative environmental impacts that may be resulted in are identified, screened and predicatively analyzed, and targeted and effective mitigation measures and an environmental management plan are raised for inevitable major negative environment impacts, which provide a basis for independent assessment of the World Bank on the project, and also provide a basis for decision-making and management to the integrated management and environmental management sectors of the government. 1.2.2 Category and Assessment Rating of Environmental Assessment Final Report According to the Notification on strengthening the management of Environmental Impact Assessment on construction projects funded by international financial organizations (HJ [1993] No. 324) of the former State Environmental Protection Administration and other ministries and the requirements of the World Bank’s Safeguard Policies OP4.01, combined with the identification and screening results of the project’s environmental assessment factors, the environmental assessment category of this project is determined as class A, that is, "a construction project likely to cause significant adverse environmental impacts; such projects require a comprehensive Environmental Impact Assessment" (HJ [1993] No. 324); "If a proposed project will have significant adverse environmental impacts, and there are a variety of these impacts which are sensitive or unprecedented, while it may be beyond the scope of the project site or facilities, the project is classified class A."(OP4.01). Therefore, the project’s environmental assessment final report (CEA) is prepared according to the content and scope of class-A project. The class of Environmental Impact Assessment on each sub-project is shown in Table 1.1. To determine the class of Environmental Impact Assessment on each sub-project is based on: (1) HJ2.2-2008 Technical Guidelines for Environmental Impact Assessment Atmospheric Environment (2) HJ/T2.3-93 Technical Guidelines for Environmental Impact Assessment Surface Water Environment (3) HJ610-2011 Technical Guidelines for Environmental Impact Assessment Groundwater Environment (4) HJ2.4-2009 Technical Guidelines for Environmental Impact Assessment Acoustic environment (5) HJ19-2011 Technical Guidelines for Environmental Impact Assessment Ecological impact Table 1.1 Rating of Environmental Impact Assessment on each sub-project Name of Atmospheric Surface Groundwater Acoustic Ecological Environmental No. sub-project environment water environment environment environment risk

3 LZEMP II - Restructured Project

environment

Longquanshan 1 Grade II Grade II Grade Ⅲ Grade II Grade Ⅲ Brief analysis WWTP III Baisha WWTP 2 Grade II Grade II Grade Ⅲ Grade II Grade Ⅲ Brief analysis II * Note: A brief analysis means judgment based on the recognition results of environmental impact and the provisions of technical guidelines for Environmental Impact Assessment, and its evaluation rating is lower than Grade Ⅲ, and therefore only a brief analysis of environmental impact is done without making quantitative predictions. 1.2.3 Preparation of Environmental Assessment Master Report Liuzhou Sewage Treatment Co., Ltd., after the project study, capacity assessment and other related procedures, has commissioned Liuzhou LiuHuan Environmental Protection Technology Co., Ltd. on the basis of the environmental assessment of each subproject carried out and the relevant environmental assessment reports completed to prepare the Environmental Impact Assessment on World Bank-Funded LZEMP II - Restructured Project (hereinafter referred to as the environmental assessment summary of this project or CEA). The specific preparation and approval of the Environmental Impact Assessment of each sub-project are shown in Table 1.2. The evaluation unit after receiving the commission, collected, sorted out and studied relevant information, explored the construction sites to be selected for the subprojects and the surrounding environment, conducted a preliminary analysis on the nature of construction of each subproject, content, scale, processes, main pollution factors and potential environmental impact, and prepared the Environmental Impact Assessment on World Bank-Funded LZEMP II - Restructured Project in accordance with national guidelines for Environmental Impact Assessment and specific technical requirements in the environmental assessment of the World Bank's safeguard policies. Table 1.2 Preparation and approval of the Environmental Impact Assessment of each sub-project Environmental Name of Impact Time for Prepared by Approved by sub-project Assessment approval document type Liuzhou LiuHuan Liuzhou Longquanshan Environmental Report Environmental 2014.7 WWTP III Protection Technology Protection Co., Ltd. Liuzhou LiuHuan Liuzhou Baisha WWTP Environmental Report Environmental 2014.7 II Protection Technology Protection Co., Ltd. 1.3 Scope of environmental assessment, assessment period and environmental protection goals 1.3.1 Scope of environmental assessment The scope of comprehensive environmental assessment of the project: (1) In accordance with the requirements of Technical Guidelines for Environmental Impact

4 LZEMP II - Restructured Project

Assessment, based on the rating of the proposed assessment, the scope of assessment on each sub-project is regarded as the basic scope of integrated environmental assessment on this project; (2) If there are environmental protection objectives (sensitive points) or the targets concerned about by the World Bank’s Safeguard Policies are close to the basic scope of assessment, they will be included in the scope of the assessment; (3) The elements and issues with a direct correlation with or potential impact on the project (such as the dams located at the upperstream and downstream reaches of rivers, groundwater tectonic units, and material and cultural resources with a certain historical value, etc.) are also included in the scope of the assessment; The scope of environmental assessment on various types of sub-projects is shown in Table 1.3. Table 1.3 Basic scope of Environmental Assessment on various types of sub-projects Assessment range Category of No. surface Acoustic Ecological sub-project Atmosphere Groundwater water environment environment About 15km long section About 9.5km2 of Liujiang range from the A square River from center of Within 1km area which 2km at the Longquanshan 200m range range outside midpoint is upstream WWTP, 2km at outside the red the boundary Longquanshan the center of reaches of the west, 1 the project Liujiang River line of of WWTP III Liujiang River site and side to which Longquanshan Longquanshan shore at the length is estuary tail WWTP wastewater east, 2 km at the 5km water flows to north, and 2km plant 13km at the at the south downstream reaches About 15km long section of Liujiang About 9.5km2 A square River from range from the area which 2km at the center of Baisha Within 1km midpoint is upstream WWTP, 2km at 200m range range outside Baisha WWTP outside the red the boundary 2 the center of reaches of the west, II the project Liujiang River Liujiang River line of Baisha of Baisha site and side to which shore at the WWTP wastewater length is estuary tail east, 2 km at the plant 5km water flows to north, and 2km 13km at the at the south downstream reaches 1.3.2 Environmental assessment period Environmental assessment of this project is mainly to analyze and assess the construction period and operation period of the project. 1.3.3 Environmental protection goals (sensitive points) In accordance with domestic laws and regulations on Environmental Impact Assessment and the provisions of the World Bank's safeguard policies, the environmental protection goals (sensitive points) for environmental assessment of this project are shown in Table 1.4 and Table 1.5, Figure 1.1 and Figure 1.2.

5 LZEMP II - Restructured Project

Table 1.4 Distribution of surrounding sensitive points at Baisha WWTP Distance from Baisha WWTP in No. Name of sensitive point Basic situation relative direction Affiliated Medical School, 1 Guangxi University of 4000 persons South, 20-180m Technology 2 Baisha Village 5000 persons South, 30-560m Liuzhou Xingzhi Primary 3 800 persons South, 370m School Affiliated Hospital of 4 Guangxi University of 628 ward beds South, 220-500m Technology 5 Bili Xingcheng 3000 persons Southwest, 245-600m West, 30-150m (about 40m from the Lvshui Yunjian 2700 residents 6 WWTP to the residential housing at Community(in construction) planned Lvshui Yunjian Community) 7 Riverside Century Town 4300 persons Northwest, 160-400m 8 Fuhong Weilanban 4300 persons Northwest, 250-470m Liuzhou Changtang Middle 9 2500 persons Northwest, 520m School Liugang living area and 10 6000 persons West, 400m Liuzhou 39th Middle School Table 1.5 Distribution of surrounding sensitive points at Longquanshan WWTP Distance from Longquanshan No. Name of sensitive point Basic situation WWTP in relative direction 1180 persons drinking 1 Jila village Northwest, 440m tap water 5 persons drinking tap 2 Jiangsi village East, 700m water Liuzhou 24th Middle 5000 persons drinking 3 Southwest, 590m School tap water 4500 persons drinking 4 Liuji living area Southwest, 780m tap water 3200 persons drinking 5 Hongtai Mingting West, 750m tap water Shengtong Xinyuan 750 persons drinking 6 West, 750m (under construction) tap water 1500 persons drinking 7 Taian community Northwest, 440m tap water Qiaodi Branch Third Brigade, Liuzhou Social 4 persons drinking tap 8 South10m Security Patrol and water Prevention Corps

6 LZEMP II - Restructured Project

图 1.1 白沙污水处理厂周围敏感点分布情况示意图

Affiliated Medical School of Guangxi 1 广西科技大学附属卫校 University of Science and Technology 2 回龙村 Huilong village 3 柳州市行知小学 Liuzhou Xingzhi Primary School Affiliated Medical School, Guangxi 4 广西科技大学附属医院 University of Technology 5 碧丽星城 Bili Xingcheng

7 LZEMP II - Restructured Project

6 绿水云间 Lvshui Yunjian Community 7 滨江世纪城 Riverside Century Town 8 富鸿蔚澜湾 Fuhong Weilanban 9 柳州市长塘中学 Liuzhou Changtang Middle School 10 柳钢生活区 Liugang living area 11 柳州市第三十九中学 Liuzhou 39th Middle School 12 柳北机械化屠宰厂 Liubei Mechanized Slaughterhouse 13 柳州市易森物质贸易有限公司汽车维修 Car repair station of Liuzhou Yisen Materials 站 Trade Co., Ltd. Liuzhou Jinhui Resources recycling 14 柳州市金回物资再生利用茂隆分公司 Maolong Branch Figure 1.1 Distribution diagram of 图 1.1 白沙污水处理厂周围敏感点分布情况 surrounding sensitive points at Baisha 示意图 WWTP

图 1.2 龙泉山污水处理厂周围敏感点分布情况示意图

1 鸡喇村 Jici village 2 江四村 Jiangsi village 3 柳州市第二十四中学 Liuzhou 24th Middle School

8 LZEMP II - Restructured Project

4 柳机生活区 Liuji living area 5 鸿泰名庭 Hongtai Mingting 6 盛通馨苑 Shengtong Xinyuan 7 泰安居 Taian community 8 柳州市社会治安巡逻防范 Qiaodi Branch Third Brigade, Liuzhou 总队桥堤支队三大队 Social Security Patrol and Prevention Corps 图 1.2 龙泉山污水处理厂周围敏感点分布 Figure 1.2 Distribution diagram of 情况示意图 surrounding sensitive points at Longquanshan WWTP

1.4 Environmental impact factors and assessment factors 1.4.1 Analysis of environmental pollution type Construction period: (1) Exhaust gas: construction dust generated during construction, flying dust generated from transport vehicles and so on. (2) Wastewater: mainly from domestic wastewater of construction workers during construction, and oily wastewater of construction machinery, which main pollution factors are CODCr, ammonia, petroleum oil and SS. (3) Solid wastes: construction waste, earthwork generated from cutting and filling; domestic garbage of construction workers and others. (4) Noise: from construction vehicles, construction machinery, etc. Operating period: (1) wastewater: plant wastewater is mainly from sludge thickening tank supernatant, sludge dehydration machine filtrate and domestic wastewater of employees, and the wastewater contains high organic pollutants and is sent back to the water pumping house through the plant sewer line into the wastewater treatment system for processing. (2) exhaust gas: it is mainly odor escaping from wastewater in treatment and emitting from sludge. Malodorous emission facilities at the WWTPs primarily contain grilles and water pumping house, grit chamber, biological pool, sludge thickening tank and sludge thickening and dehydration machine room, etc.; the emission mode is fugitive emission, and the main components of odor are hydrogen sulfide (H2S), ammonia (NH3) and the like. (3) Solid wastes: after coarse grids, fine grids and aeration settling basins run, there will be grid slag and sand, which need to be cleared; residual sludge after being concentrated and dehydrated needs to be addressed. (4) Noise: the main high-noise equipment at the WWTPs in operation are wastewater lift pump, sludge lift pump, blower, etc. 1.4.2 Identification results of environmental assessment factors Based on the above analysis, combined with the project’s category and characteristics, the identification results of environmental impact of the project sees Table 1.6.

9 LZEMP II - Restructured Project

Table 1.6 Screening results of the project’s environmental assessment factors environmental assessment factors Ecological Environmental Acoustic Surface water groundwater Solid wastes environment air environment pH, permanganate pH, permanganate index, COD , volatile Cr index, nitrates, phenol, dissolved volatile phenol, oxygen, BOD , NH3 5 ammonia nitrogen, Construction TSP, SO ammonia, SS, total Equivalent Land use, 2. total coliforms, waste and NO , H S, phosphorus, total continuous vegetation 2. odor 2 total bacteria remaining NH nitrogen, petroleum, A sound 3 counts, cadmium, sludge cadmium, lead, zinc, level (L ) lead, zinc, Aeq hexavalent chromium, chromium, arsenic arsenic, mercury and and mercury fecal coliform 1.5 Environmental policies and regulations documents 1.5.1 Laws, regulations and rules and normative documents (1) Law of the People's Republic of China on Appraising of Environment Impacts (published on October 28, 2002 and implemented on September 1, 2003); (2) Environmental Protection Law of the People's Republic of China (published and implemented on December 26, 1989); (3) Law of the People's Republic of China on Prevention and Control of Water Pollution (published on 1984.5.11 and implemented on February 28, 2008); (4) Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution (implemented on 2000.4.29); (5) Law of the People's Republic of China on Prevention and Control of Pollution From Environmental Noise (implemented in 1997); (6) Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Wastes (implemented in 2005); (7) Law of the People's Republic of China on Water and Soil Conservation (amended on 2010.12 and implemented on 2011.3.1); (8) No. 253 Order of the State Council, Regulations on the Administration of Construction Project Environmental Protection (published and implemented on 1998.11.18); (9) Implementation of the Law of the People's Republic of Soil and Water Conservation (1993.8); (10) Opinions on further preparation for environmental protection management of construction projects of the State Environmental Protection Administration (1993.1.11); (11) Regulations for acceptance of environmental protection of completed construction projects (No. 13 Order) of the State Environmental Protection Administration (published on December 27, 2001 and implemented on February 1, 2002); (12) List of Environmental Impact Assessment and classification management of construction projects of the State Environmental Protection Administration (implemented on 2008.10.1); (13) Interim Measures for Public Participation in Environmental Impact Assessment of the State

10 LZEMP II - Restructured Project

Environmental Protection Administration (published on 2006.2.22 and implemented on 2006.3.18); (14) Regulation on the dismantlement of urban houses (2001.6); (15) Notification about strengthening of risk prevention and strict management of Environmental Impact Assessment HF [2012] No. 98; (16) Guiding Catalogue of Industrial Structure Adjustment (2011 version) (amended in 2013); (17) Environmental Protection Ordinance of Guangxi Zhuang Autonomous Region (announced and implemented on March 26, 1999 corrected on December 3, 2005, implemented on February 1, 2006 corrected again on September 29, 2010 and implemented on 2011.11.1); (18) Methods for implementation of the Water and Soil Conservation Law of the People's Republic of China by Guangxi Zhuang Autonomous Region, Second Revision on June 3, 2004); (19) Regulations of Liuzhou urban construction waste 2007.4.16. (20) Environmental Protection Department of Guangxi Zhuang Autonomous Region, HGF [2010] No. 106 Notification on the issuance of Environmental monitoring methods for construction projects of Guangxi Zhuang Autonomous Region (Trial) (implemented on October 1, 2010); (21) Liuzhou Environmental Protection Bureau, Supplementary Regulations for the implementation of Environmental monitoring methods for construction projects of Guangxi Zhuang Autonomous Region by Liuzhou Environmental Protection Bureau (Trial), 2010.11.17; (22) The People's Government of Guangxi Zhuang Autonomous Region, GZH (2009) No. 62, Approval of the People's Government of Guangxi Zhuang Autonomous Region about agreement of the delineation program for Liuzhou urban drinking water source protection zones, 2009.3. (23) Liuzhou People's Government LZB [2012] No. 254, Notification of Liuzhou People's Government Office on the issuance of adjustment program for acoustic environment function zoning of Liuzhou urban areas and adjustment program for ambient air quality function zoning of Liuzhou 2012.10. (24) HB [2010] No. 157 Notification on the strengthening of sludge pollution control in municipal wastewater treatment plant (25) JB (2001) No. 77 Construction standard for urban wastewater treatment projects (26) GB15562.1-1995 Graphical signs for environmental protection - discharge port (source) (27) HJ [1996] No. 470 Technical requirements for standardized regulation of outfalls (Trial). 1.5.2 Technical Specifications (1) Technical Guidelines for Environmental Impact Assessment - General principles (HJ2.1-2011), an Environmental Protection Industry Standard of the People's Republic of China; (2) Technical Guidelines for Environmental Impact Assessment - Atmospheric Environment (HJ2.2-2008), an Environmental Protection Industry Standard of the People's Republic of China; (3) Technical Guidelines for Environmental Impact Assessment - Surface Water Environment (HJ/T2.3-93), an Environmental Protection Industry Standard of the People's Republic of China; (4) Technical Guidelines for Environmental Impact Assessment - acoustic environment (HJ2.4-2009), an Environmental Protection Industry Standard of the People's Republic of China;

11 LZEMP II - Restructured Project

(5) Technical Guidelines for Environmental Impact Assessment - Ecological Impact (HJ19-2011), an Environmental Protection Industry Standard of the People's Republic of China; (6) Guidelines for Environmental Impact Assessment - Groundwater Environment (HJ610-2011), an environmental protection standard, the People's Republic of China; (7) Standard for setting of town environmental sanitation facilities (CJJ27-2005) an industry standard of the Ministry of Construction, the People's Republic of China; (8) Technical methods for stipulation of local atmospheric pollutant emission standards (GB/T13201-91); (9) Monitoring Analysis Methods for Air and exhaust gas (China Environmental Science Press); (10) Monitoring Analysis Methods for Water and Wastewater (China Environmental Science Press); (11) Technical Specifications Requirements for Monitoring of Surface Water and Waste Water (HJ/T91-2002); (12) Technical Requirements for Monitoring of Total Amount of Pollutants in Waste Water (HJ/92-2002); (13) Technical Criteria for Urban Fugitive Dust Pollution Prevention and Control (HJ/T393-2007);

1.5.3 Relevant documents (1) Approval on the Proposal of LZEMP II —Baisha WWTP II of Liuzhou Development and Reform Commission, LFGH [2013] No.602; (2) Approval on the Proposal of LZEMP II —Longquanshan WWTP III of Liuzhou Development and Reform Commission, LFGH [2013] No.603; (3) Power of Attorney of Liuzhou Sewage Treatment Co., Ltd.; (4) Feasibility Study Report of LZEMP II —Baisha WWTP II; (5) Feasibility Study Report of LZEMP II —Longquanshan WWTP III; (4) Other information provided by Liuzhou Sewage Treatment Co., Ltd. about Baisha WWTP and Longquanshan WWTP; 1.5.4 Safeguard policies of the World Bank (1) OP/BP 4.01 Environmental Assessment; (2) BP17.50 Information Disclosure; (3) OP 4.11 Physical Cultural Resources. (4) Guidelines for Water and sanitation, health and safety; (5) General Guidelines for Environment, Health and Safety. 1.5.6 Environmental Quality Standards (1) Class Ⅲ standard of GB3838-2002 Environmental quality standard for surface water No. Item name Class Ⅲ standard of GB3838-2002 1 permanganate index(mg/L) ≤6

2 CODcr(mg/L) ≤20

3 BOD5(mg/L) ≤4.0

12 LZEMP II - Restructured Project

4 NH3-N(mg/L) ≤1.0 5 Petroleum (mg/L) ≤0.05 6 pH value (dimensionless) 6~9 7 Total Phosphorus(mg/L) ≤0.2 8 Total nitrogen(mg/L) ≤1.0 9 Fecal coliforms (pcs/L) ≤10000 10 Hexavalent chromium(mg/L) ≤0.05 11 Total lead(mg/L) ≤0.1 12 Zinc (mg/L) ≤1.0 13 Cadmium (mg/L) ≤0.01 14 Dissolved Oxygen (mg/L) ≥5 15 Volatile phenols (mg/L) ≤0.005 16 Arsenic (mg/L) ≤0.05 17 Mercury (mg/L) ≤0.001 SS is shown in Grade Ⅲ requirements of SL63-94 Quality standards for surface water resources (SS≤60 mg/L) (2) Class III standard of GB/T 14848-93 Quality standards for groundwater No. Item name Class III standard of GB/T 14848-93 1 pH value (dimensionless) 6.5～8.5 2 Nitrate(mg/L) ≤20 3 permanganate index(mg/L) ≤3.0 4 Ammonia nitrogen(mg/L) ≤0.2 5 Hexavalent chromium(mg/L) ≤0.05 6 Total coliform bacteria (pcs/L) ≤3.0 7 Total bacteria counts(pcs/mL) ≤100 8 Lead (mg/L) ≤0.05 9 Arsenic (mg/L) ≤0.05 10 Zinc (mg/L) ≤1.0 11 Cadmium (mg/L) ≤0.01 12 Volatile phenols (mg/L) 0.002 13 Mercury (mg/L) ≤0.001 (3) Ambient Air Quality Standard: Domestic standard: Grade II standard of GB3095-2012 Ambient Air Quality Standard WB standard: WHO Air Quality Guidelines Concentration limit (ug/m3) 1h on average 24h on average Annual average No. Name of pollutant Domestic WB Domestic WB Domestic WB SO2 standard standard standard standard standard standard 1 500 — 150 20 60 —

2 NO2 200 200 80 — 40 40 3 TSP — — 300 — 200 —

4 PM10 — — 150 50 100 20 Note: WB standard is the guideline values.

13 LZEMP II - Restructured Project

From the foregoing table, the average values of SO2 and PM10 in 24h and the annual average in the WB standard are more rigorous than the domestic standard, and in accordance with the General Guidelines for Environment, Health and Safety, the domestic standard, if exists, shall apply; but if the domestic standard does not exist, the WB standard shall apply. (4) Class 2 standard of GB3096-2008 Environmental quality standard for noise: Equivalent sound level Category LAeqdB(A) Remark Day Night 2 60 50 Other areas on both sides of Jiutoushan road

4a 70 55 35m range on both sides of Jiutoushan road (5) The maximum allowable concentration of harmful substances in the air of residential areas set out in TJ36-79 Sanitary standard for the design of industrial enterprise No. Item Standard value 1 H2S 0.01 2 NH3 0.2 (6) HJ350-2007 Standard of Soil Quality Assessment for Exhibition Sites (Trial) Standard Cd Cr Cu Pb Zn Class A 1 160 63 140 200 Class B 22 610 600 600 1500 1.4.2 Sewage drainage standard (1) wastewater drainage standard Effluent water from Baisha WWTP and Longquanshan WWTP follows Grade ⅠB standard of GB18918-2002 Discharge standard of pollutants for municipal wastewater treatment plant, as shown below: No. Pollutants Grade ⅠB standard 1 pH value (dimensionless) 6~9 2 Suspended matter (mg/L) 20

3 CODCr(mg/L) 60 4 BOD5(mg/L) 20 5 Petroleum (mg/L) 3 6 Animal and vegetable oil (mg/L) 3 7 Anionic surfactant (mg/L) 1 8 Ammonia nitrogen(mg/L) 8(15) * 9 Total nitrogen(mg/L) 20 10 Total Phosphorus(mg/L) 1 11 Chroma (diluted multiples) 30 12 Fecal coliforms (pcs/L) 104 13 Hexavalent chromium(mg/L) 0.05 14 Total lead(mg/L) 0.1 15 Zinc (mg/L) 1.0 16 Cadmium (mg/L) 0.01 *: The value outside brackets is the control indicator at water temperature > 12℃ and the value in brackets is the control indicator at water temperature≤12℃. (2) Waste gas emission standard

14 LZEMP II - Restructured Project

Grade II standard of GB18918-2002 Discharge standard of pollutants for municipal wastewater treatment plant in Table 4 is performed for WWTP boundary, and relevant standard are in the table below No. Item Standard value (Grade II) 1 Odor (dimensionless) 20 2 H2S 0.06 3 NH3 1.5

(3) GB12523-2011 Emission standard of environment noise for boundary of construction site: Day dB(A) Night dB(A) 70 55

(4) GB12348-2008 Emission standard for industrial enterprises noise at boundary Category Day dB(A) Night dB(A) Remark Class 4 70 55 North boundary of Longquanshan WWTP Other boundaries outside North boundary of Class 2 60 50 Longquanshan WWTP

15 LZEMP II - Restructured Project

2 Project description 2.1 Project name The restructured project of LZEMP II consists of two sub-projects, located in Libei District and Yufeng District, Liuzhou. The basic situation of each subproject is shown in Table 2.1. Table 2.1 Overview of Project Components

Category No. Name of sub-project Location Employer Yufeng Liuzhou Sewage 1 Longquanshan WWTP Ⅲ District Sewage treatment Treatment Co., engineering 2 Baisha WWTP II Libei District Ltd. 2.2 Plant (field) site and land acquisition and occupation of the proposed project After a comprehensive comparative analysis of technical and economic, environmental conditions, social impacts of the Environmental Impact Assessment for each subproject, the recommended construction plant (fields) sites with Environmental Impact Assessment approval accessible, and land acquisition and occupation of various plant (fields) sites see Table 2.2. Table 2.2 Recommended building plant (field) sites of the subprojects Recommended Compliance of plant (field) site of the project with Land acquisition and No. Project name proposed project associated occupation and environmental planning conditions In line with the The total land area is 64876m2, Liuzhou urban including a new land area of drainage 54996m2, the new land is the Within current planning, current vegetable land and Longquanshan controlled easily built buildings, and the Longquanshan WWTP and 1 detailed planning latter is temporary residential WWTP Ⅲ collective land of for Baisha area in buildings for external farmers, Jila Village south of Liuzhou and with a total construction area of the plant site Liuzhou city approximately 5000m2; master plan according to plan, the new land (2010-2020) is for Longquanshan WWTP The total land area is 29378m2, including a new land area of 23670m2, and the new land is collective land for Baisha In line with the Village and current Liuzhou urban Huilongchong. There is a drainage parking lot now on the planning, Within current collective land of Baisha controlled Baisha WWTP and Village, which does not involve Baisha detailed planning 2 collective land of demolition of residential WWTP II for the east area Baisha Village west buildings. Huilongchong will be of Liaoyuan road of the plant site diverted before Huilongchong in Liuzhou and land is occupied by the project, Liuzhou city and the diverted Huilongchong master plan will be covered; then, the land (2010-2020) will be used for construction of municipal roads, so the construction of the project will not affect drainage function of

16 LZEMP II - Restructured Project

Huilongchong. 2.3 Project construction plan 2.3.1 Construction content and scale of wastewater treatment projects The main construction contents see Table 2.3. 2.3 Construction scope, scale and related conditions

Length Design Drainag Disinfectio Discharg Name of of Scope of scale Treatmen e 3 n type of e sub-project service service (10000m /d t process directio tail water standard (years) ) n East and north sides near Riverside, west bordering to Liujiang County, north to Liujiang River at the north of Guizhou-Guang Recent: xi railway and 2 Grade Longquansha 2016 A /O Liujiang UV south bordering 10 ⅠB n WWTP Ⅲ Forward process River disinfection to South Loop : 2025 standard Road; the regional planning area 60km2, and a planned total population of about 669800 million people in 2025. Liuzhou Hebei peninsula is administratively divided into Libei District and Chengzhong District. East, south and west Recent: near Riverside, 2 Grade Baisha 2016 A /O Liujiang UV and north to the 8 ⅠB WWTP II Forward process River disinfection North Ring : 2025 standard Road; the regional planning area of 46.71km2, and a planned total population of about 495000 people in 2025. Note: The discharge standard means GB18918-2002 Discharge standard of pollutants for municipal wastewater treatment plant. Two WWTPs use the same wastewater treatment process, namely A2/O process; Grade ⅠB standard of GB18918-2002 Discharge standard of pollutants for municipal wastewater treatment plant is implemented for the tail water discharge. According to the feasibility study report, after comparative survey, analysis and evaluation on the water quality of local urban wastewater, the effluent quality of the WWTPs is determined, as shown in Table 2.4.

17 LZEMP II - Restructured Project

Table 2.4 Designed influent and effluent water quality of the project Name of sub-project COD Indicator BOD SS NH -N TP and process Cr 5 3 Influent water (mg/L) 300 120 160 25 3.5 Longquanshan WWTP Effluent water (mg/L) Ⅲ Removal rate (%) 80% 83.30% 97.5 68% 71.4%

Influent water (mg/L) 300 120 160 25 4

Baisha WWTP II effluent water (mg/L)

Removal rate (%) 80% 83.30% 97.5 68% 75% Note: GB18918-2002 Discharge standard of pollutants for municipal wastewater treatment plant is perform for the effluent water quality, and the execution standard level is mainly determined according to the drainage function of receiving water bodies. 2.3.2 Treatment process of WWTPs A2/O process of biological denitrification and phosphorus removal is adopted for the two subprojects, and the specific process is as follows:

18 LZEMP II - Restructured Project

噪声 臭气

铝盐间歇性投加 臭气 鼓风机房

曝 消 合流污水 进 细 旱流污水 选 二 毒 粗 水 格 气 厌 缺 好 尾水 沉 池 柳 格 泵 沉 择 氧 氧 氧

栅

池 砂 江

栅

房 池 池 池 池

池

混合液回流 臭气 栅渣 栅渣 沉砂 雨季溢流

臭气 污泥泵房 回流污泥

脱水残液 污泥机械浓缩、脱水间

厂区生活污水 泥饼外运

19 LZEMP II - Restructured Project

合流污水 Combined wastewater 噪声 Noise 进水泵房 Water pumping house 曝气沉砂池 Aerated grit chamber 铝盐间歇性投加 Aluminum intermittent dosing 选择池 Selection pool 缺氧池 Anoxic tank 二沉池 Secondary sedimentation tank 尾水 Treated water 栅渣 Screening slag 雨季溢流 Overflow during the rainy season 污泥泵房 Sludge pumping house 脱水残液 Dehydration residue 厂区生活污水 Domestic wastewater from plants 泥饼外运 Cake shipment 臭气 Odor 粗格栅 Coarse grid 细格栅 Fine grid 鼓风机房 Blower room 旱流污水 Dry flow wastewater 厌氧池 Anaerobic tank 好氧池 Aerobic tank 消毒池 Disinfection pool 柳江 Liujiang River 沉砂 Grit 混合液回流 Mixed liquor reflow 脱水残液 Dehydration residue 污泥机械浓缩、脱水间 Mechanical sludge thickening and dehydration room 回流污泥 Return sludge

20 LZEMP II - Restructured Project

2.4 Works associated with the project The land for the plant of Longquanshan WWTP III is mainly acquired at the south of Longquanshan WWTP I and II separately; its relying relationships with the first phase and the second phase are mainly: office buildings relying on first phase and second phase buildings; the existing buildings are used for coarse grid and lift pumping house, and the first phase three small pumps are replaced by large pumps in this Restructured Project; the vacant land in the first phase and second phase land is used for building fine grid and aerated grit chamber; an existing building is used as the blower room, and a blower is increased in this Restructured Project; an existing building is used for the sludge thickening and dehydration machine room, and this Restructured Project intends to replace the first phase three drum thickeners with trommel sludge concentrators, each of which processing capacity is 130m3/h and power is 1.5kw; tail water discharge pipes are shared with the first phase and second phase. The land for the plant of Baisha WWTP II is acquired at the west of the first phase, and the relying relationship with the first phase is: the office space, coarse grid and water pumping house, and sludge thickening and dehydration machine room rely on the first phase buildings, and some of the equipment is added or replaced; as since Baisha WWTP has been put into operation, the primary sedimentation tank is basically not used, the project intends to dismantle the first phase primary sedimentation tank, a biological pool of the project is built on the site of the primary sedimentation tank of the first phase works, and fine grille and aerated grit chamber, blower room, power transformation and distribution rooms, and sludge thickening tank are built at the southeastern part of the first phase land; the first phase ultraviolet disinfection channel is dismantled, and the first phase and second phase ultraviolet disinfection channels are co-built. Sludge generated from Longquanshan WWTP III and Baisha WWTP II is carried to the LZSDC for processing. According to the survey results, the works associated with the project are Longquanshan WWTP I and Ⅱ, Baisha WWTP, LZSDC, and Liuzhou suburban drainage works. The basic situations of other works associated with this project are shown in Table 2.5 and Table 2.6. Table 2.5 Responsible investigation of associated projects Treatmen Completi Treatmen Environmental compliance after Project name t process on time t scale running To the Longquanshan 100,000 A2/O end of Detailed in Section 3.3 herein WWTP Ⅰ m3/d 2004 To the Longquanshan 150,000 A2/O end of Detailed in Section 3.3 WWTP Ⅱ m3/d 2008 To the Baisha WWTP 100,000 A2/O end of Detailed in Section 3.3 Ⅰ m3/d 2008 Co-comb To the It has been put into trial operation, but Liuzhou WWTP ustion in end of 500m3/d there has been no acceptance for the rotary 2013 environmental protection

21 LZEMP II - Restructured Project

kiln

Liuzhou To the suburban ―― end of ――― ---- drainage project 2015 Table 2.6 Environmental Impact Assessment of associated projects Environmental Approval Project name Impact Approved by Remark time Assessment Unit Liuzhou Original district Environmental Longquanshan environmental Protection 1999.06.22 Public WWTP I protection Science participation has bureau Research Institute been done, and there are China-Japan State Environmental Longquanshan Friendly Environmental 2005.01.24 Management WWTP Ⅱ Environmental Protection Plan and Protection Center Administration monitoring China-Japan State program, along Baisha Friendly Environmental 2005.01.24 with a WWTP Ⅰ Environmental Protection comprehensive Protection Center Administration environmental Liuzhou Liuzhou impact analysis, Environmental Environmental in line with the LZSDC Protection 2010.03.11 Protection requirements of Science Bureau the World Bank’s Research Institute Environmental Guangxi Science Liuzhou Impact Liuzhou suburban Institute of Environmental 2010.03.15 Assessment drainage project Environmental Protection Protection Bureau Seen from Table 2.5, LZSDC has been put into use, and the sludge generated by the project can be properly disposed of. 2.5 Project Investment Estimation The project’s investment estimate is shown in Table 2.7. Table 2.7 Project Investment Estimation Investment WB loan Category No. Project Name Estimation ($ 10000) (RMB 10000) Urban 1 Longquanshan WWTP Ⅲ 21556.62 2498 wastewater treatment projects (2 2 Baisha WWTP II 19002.26 2467.0 pcs) Design review, project management and Consulting RMB 5.93 1 contract management consulting services million services Front-end fee 1 Front-end fee $ 75, 000 Total 2.6 Project Implementation Plan Depending on the circumstances, the total period of the project from pre-preparation to project completion is about two years. Implementation schedule for each sub-project (construction period) 22 LZEMP II - Restructured Project is shown in Table 2.8. Table 2.8 Project Implementation Plan No. Project name Implementation Plan WWTP: Longquanshan 2014.11～2015.01, Procurement (Tendering process); 1 WWTP Ⅲ 2015.02～2016.12, construction, commissioning, test run, and project acceptance completed. 2014.11～2015.01, Procurement (Tendering process); 2 Baisha WWTP II 2015.02～2016.12, construction, commissioning, test run, and project acceptance completed.

23 LZEMP II - Restructured Project

3 Regional environmental profile around the construction project The project is located in a built-up area of Liuzhou city, and the regional environmental profile, social status, and environmental quality conditions of its sub-project are summarized below. 3.1 Overview of natural ecological environment 3.1.1 Geographic location Liuzhou city, located in north-central Guangxi, is at north latitude 23° 5' ~ 26° 03' and east longitude 108° 32' ~ 110° 28'. Its east is adjacent to Longsheng County, Yongfu County and Lipu County of Guilin, its west connects to Huanjiang Maonan County and Luocheng Yizhou County in Hechi City, and Yizhou City, and its north and northwest are respectively adjacent to Dongdao Tong County in Hunan Province, Liping County and Congjiang County in Guizhou province. 3.1.2 Terrain, topography and geology Terrains in Liuzhou city are flat and slightly undulating, the ground elevation is 85-105 meters above sea level, and its east, west and north are surrounded by mountains, with typical karst features; because of Liujiang River flow through urban areas and the influences of climate, lithology and structure, a natural basin superimposed by geomorphology of river terraces and karst topography has formed, and its geomorphic units can be divided into: Hequ block in the central city, Liubei Gufeng karst plains, Liudong Gufeng, Fengcong karst zone, Liunan Fenglin Fengcong valley, Liuxi multi-level river terraces, Shatang synclinal basin and hilly karst and so on. The project is located within Libei District, and Libei District is mostly situated in the Grade II terraces of Liujiang River Valley. The terrain at the location of the project is gentle, with open topography. Since the Quaternary period, there are no found significant signs of new tectonic movement. The proposed site is relatively flat terrain, and the formation is relatively simple, with no significant adverse geological structure and adverse geology, with generally good geotechnical properties. The seismic intensity of Liuzhou city is less than Class VI. 3.1.3 Hydrology Liujiang River is the only major river flowing through the assessment area, a GradeⅠtributary of the Xijiang River, and the largest transit river in Liuzhou; it flows around the urban areas in a length of 75km, the basin area is 58,270 square kilometers, the highest water level is 92.43m, the lowest water level is 68.22 m, and the average annual flow is 1280m3/s; the driest flow rate of months at the guaranteed rate of 90% and 95% is 163 m3/s and 142 m3/s, separately, the river beds are 250 ~ 500m wide, the riverbed elevation is 62 ~ 66m, and the average annual temperature is 21.4 degrees. Liujiang generally enters into the wet season from June to August, and its dry season is from December to next February. Liujiang Honghua Hydropower Station, as the most downstream cascade developed at Liujiang River Main Level-9, is located about 60km at the downstream reaches of Liuzhou hydrological station. The power station was started under construction at the end of 2003, and began to store water and generate power in June 2005. The power station is a riverbed runoff power plant, and its 24 LZEMP II - Restructured Project running subsiding water does not have an impact on reservoir flood, dry season and annual monthly runoff distribution; 029 million m3 of daily regulation reservoir capacity has been set, and thus, the intraday allocation process of natural water can be changed at the peaking runtime. The water draw rate of the power station and ship lock ranges from 192 to 4800m3/s; the normal pool level is 77.5m, the backwater length of the reservoir is 108km, the average water depth of the dam after building the reservoir rises from 2.22m before building the reservoir to 13.13m, the surface width rises from 360m to 642m, and the average velocity ranges from 0.79m/s down to 0.08m/s. After the water station has stored water for power generation, the urban rivers turn into the reservoir area, the water surface and water depth increases, and the flow rate is greatly reduced. 3.1.4 Groundwater Groundwater in Liuzhou city is a low-salinity fresh water, containing rich calcium and magnesium components but low sodium, with moderate hardness, water temperature 22 ~ 24℃, so it is a good source of domestic water and industrial water. According to the occurrence conditions and hydrodynamic characteristics of groundwater in the location of Longquanshan WWTP, the groundwater in the field can be classified into perched water, which is unevenly distributed and mainly occurs in plain fill and silty clay, with no unified hydraulic connection. According to 1/20000 regional hydrogeological census data and the survey results, Longquanshan WWTP area belongs to a geomorphology of river terraces, where clay is overlaid and the Carboniferous system is underlain. The project is located in the discharge area of groundwater here, the groundwater type is fracture dive, and the site groundwater type is fracture dive, which mainly occurs in the caves and grike zones in underlying dolomitic limestone, receiving vertical replenishment by the lateral and upper Quaternary loose rock pore water near the groundwater, with weak pressure resistance and water level of about 77.0 ~ 77.5m; the groundwater flow is excreted from the southwest to the northeast to Liujiang River, and the project site is the regional groundwater discharge area. Baisha WWTP is located at the Grade II terraces of Liujiang River Valley, where the formation lithology is single, and the regional groundwater is classified into Quaternary loose rock pore water, and carbonate rock fissure cave water. The Quaternary loose rock pore water mainly occurs in the soil pores, and is mainly recharged by atmospheric precipitation; the site carbonate rock fissure cave water mainly occurs in the caves and grike zones in underlying dolomitic limestone, mainly receiving vertical replenishment by the lateral and upper Quaternary loose rock pore water near the groundwater, with weak pressure resistance. The water level is about 77.0 ~ 78.27m, and the groundwater flow is excreted from the southwest to the northeast to Liujiang River, and the project site is the regional groundwater discharge area. 3.1.5 Weather and climate Liuzhou city is located at the transitional zone of south subtropical areas to mid-subtropical areas, a subtropical climate zone, with mild climate and abundant rainfall. The average temperature of

25 LZEMP II - Restructured Project years is 21.1℃, the extreme maximum temperature 39.0℃, the extreme minimum temperature is -0.3℃, the annual average rainfall is 1502.0mm, the annual average relative humidity is 73%, the daily maximum rainfall IS 233.6mm, AND the average annual sunshine duration is 1518.5h. The most frequent wind direction is north northwest wind, with the frequency of 10%, followed by northeast and southerly wind, with the frequency of 9% and static wind frequency of 26%, and the average annual wind speed is 1.6m/s. North-South wind prevails in Liuzhou, with little east-west wind; northerly wind is mostly in the winter and southerly wind is mostly in the summer, and static wind frequency of urban areas is high. 3.1.6 Ecological Environment Liuzhou covers a total land area of 1,838,000 hectares, of which the area of forestry land is 1,141,000 hectares, accounting for 62.1% of the total area. Forest area is 1,096,000 hectares (including shrubs), containing 26.2 million cubic meters of standing trees, and the forest coverage rate is 59.7%, and that excluding shrubs is 43.5%. The forest area and the quantity of standing trees are ranked the forefront of Guangxi, where the fir output is ranked first in Guangxi, bamboo production is ranked second in Guangxi, the output of tea-oil trees and tung also ranks the forefront of Guangxi, and the rest are dozens of pine, camphor, maple, Chinese cherry, toon and other species. There are more than 5000 kinds of plants in the territory of Liuzhou, including 63 kinds of state-protected plants, and there are more than 300 kinds of wild animals, including 23 species under state protection. Liujiang River in Liuzhou (including Liucheng, Liujiang County) contains a total of 113 kinds of fish, including 1 kind of Rajiformes, 1 kind of Anguilliformes, 84 kinds of Cypriniformes, 10 kinds of Piciformes, 1 kind of Synbranchiformes, 1 kind of Perciformes, and 1 kind of Tetraodontiformes. The species with economic value are green, (grass), silver carp, bighead carp, crucian carp, dace, bream bream, ctenoluciidae, barbel, Xenocypris, Squaliobarbus, Spinibarbus, white snapper, catfish, mandarin fish, good fish, eel and so on. 3.2 Social Environment

26

LZEMP II - Restructured Project

白沙污水处理厂 Baisha WWTP 龙泉山污水处理厂 Longquanshan WWTP 图 3.1 各子项目厂址位置图 Figure 3.1 Site location map of each sub-project Baisha WWTP II is located at Baisha of Liubei District in Liuzhou and Longquanshan WWTP III is located at East Liaoyuan Road of Yufeng District, and the specific locations are shown in Figure 3.1. Within the site selection range and assessment range of Baisha WWTP II and Longquanshan WWTP Ⅲ, there are no trees, scenic spots, ecologically sensitive areas, drinking water source protection areas and other areas needed to be protected. Libei District is located north of Liuzhou city, and its built area started in 1979. There are three towns and seven subdistrict offices under its jurisdiction, and its administrative area is 320.03 square kilometers. The total population was 36.81 million people in 2013, including agricultural population of 8.44 million. The controlled land planned in detail for Baisha zone is bounded by Yuejin Road, its west is Yuejin Road, its east connects to Baisha embankment, its south leads to Hudong Bridge, and its north is adjacent to the bridge under planning at the north of Hudong Bridge, with a total planned area of approximately 349.05 hectares. Baisha zone is an urban center area mainly for residence and business, and is integrated with urban leisure and consumption, traditional business, culture and entertainment, sports and leisure and residential communities. Yufeng District, located at the southeast of Liuzhou, has Tianma, Jiahe, Rongjun, Jianpanshan, Wuliting, Bailian, and Yanghe eight subdistrict offices under its jurisdiction, with an administrative area of about 122 square kilometers, a total resident population of 228,000 people, and a total floating population of 80,000 people. East zone of Liaoyuan Road in Liuzhou is at the east of Liaoyuan Road, its north borders Shewan Road and Shuishan, its east is adjacent to Liujiang River, and its south is at Wuchalu turning and Longquan Mountain, with a total planned land area of approximately 606.19 hectares, including 387.64 hectares of urban construction land. East zone of Liaoyuan Road is one piece of the portal areas of Liuzhou City, a new landscape livable area in the city and a new urban comprehensive area with urban complex as the core. 3.3 Current pollutant discharge of WWTPs 3.3.1 Pollutant discharge before restructuring of Longquanshan WWTP (1) Wastewater According to the design, the designed water output of Longquanshan WWTP I and II has reached Grade ⅠB standard of GB18918-2002 Discharge standard of pollutants for municipal wastewater treatment plant, and the effluent pollutant discharge of Longquanshan WWTP I and II is shown in Table 3.1. Table 3.1 Effluent pollutant discharge of Longquanshan WWTP I and II Sewage COD (t/a) BOD (t/a) SS(t/a) NH -N(t/a) TP(t/a) quantity.(10000 m3/d) Cr 5 3 Design 25 5475 1825 1825 730 91.3 27 LZEMP II - Restructured Project

Actual 25 1806.8 565.8 866.9 164.3 91.3 Note: The actual calculation is on the basis of the average effluent concentration of January 2012 to June 2013. According to the Letter of Environmental Protection Accepting Opinion upon the Completion of

LZEMP (Longquanshan WWTP and Baisha WWTP) (HY [2010] No. 99), the effluent CODCr,

BOD5, SS, NH3-N, TP and other water pollutants from Longquanshan WWTP I and II are in line with Grade ⅠB standard of the Discharge standard of pollutants for municipal wastewater treatment plant (GB12348-2002). According to the on-line monitoring data of Longquanshan WWTP and quarterly supervisory monitoring data by the environmental protection department, the effluent CODCr, BOD5, SS, NH3-N, TP and other water pollutants from Longquanshan WWTP I and II are better than Grade ⅠB standard of the Discharge standard of pollutants for municipal wastewater treatment plant (GB12348-2002). (2) Exhaust gas Exhaust gas generated during the operation of the WWTP is odor. Grill pools, wastewater pumping house, sludge dehydration and thickening machine room, biological pool, etc. generate certain odor, which belongs to fugitive emissions. The main components of the odor are H2S and

NH3, whose emission load is 0.6t/a and 2.89t/a respectively. According to the Letter of Environmental Protection Accepting Opinion upon the Completion of LZEMP - Water Environment Comprehensive Treatment Project (Longquanshan WWTP and

Baisha WWTP) (HY [2010] No. 99), the maximum concentration of H2S, NH3 and odor from Longquanshan WWTP I and II at fugitive emission monitoring points is in line with the Grade II standard of the Discharge standard of pollutants for municipal wastewater treatment plant

(GB12348-2002). Apart from final acceptance monitoring, the concentration of H2S, NH3 and odor from fugitive emissions of Longquanshan WWTP was not under supervisory monitoring. (3) Noise The main noise sources are wastewater treatment equipment and sludge treatment equipment, and the intensity of noise sources is 65 ~ 90 dB (A). According to the Letter of Environmental Protection Accepting Opinion upon the Completion of LZEMP - Water Environment Comprehensive Treatment Project (Longquanshan WWTP and Baisha WWTP) (HY [2010] No. 99), the monitoring value at boundary of Longquanshan WWTP I and II is in line with the Grade II standard of the Emission standard for industrial enterprises noise at boundary (GB12348-2008). Apart from final acceptance monitoring, the boundary noise from Longquanshan WWTP was not under supervisory monitoring. (4) Solid Waste Solid wastes generated from Longquanshan WWTP in the operation process mainly include grill slag, sand, sludge, mercury and chromium and other hazardous wastes. See Table 3.2. Table 3.2 Solid Wastes from Longquanshan WWTP I and II Category Grille slag and Sludge Hazardous wastes Domestic 28 LZEMP II - Restructured Project

sand containing mercury and garbage chromium Output 0.8(m3/a) 2.3(m3/a) 300(L/a) 9.1(t/a) Grill residue, sediment and domestic garbage are treated by the sanitation department commissioned. According to the Letter of Environmental Protection Acceptance Opinions of LZEMP - Water Environment Comprehensive Treatment Project (Longquanshan WWTP and Baisha WWTP) (HY [2010] No. 99), the leaching toxicities of total mercury, total cadmium, total chromium, total arsenic, total lead and total nickel in sludge from Longquanshan WWTP I and II are lower than those in Table 1 under the Identification standard for hazardous wastes Identification for extraction toxicity (GB5085.3-2007), and thus they do not belong to hazardous waste. All analysis results of heavy metals in sludge from Longquanshan WWTP are as follows: Table 3.3 Contents of heavy metals in sludge from Longquanshan WWTP I and II Unit (mg/kg) Disposal of sludge from Disposal of sludge from municipal wastewater Result municipal wastewater Longquanshan treatment plant--Quality of treatment plant - Quality of WWTP sludge used in the production Item sludge used in making brick of cement clinker CJ/T GB/T 25031-2010 314-2009 Total 298 ＜1000 ＜1000 chromium Total 8.97 ＜20 ＜20 cadmium Total lead 117 ＜1000 ＜300 Total copper 191 ＜1500 ＜1500 Total zinc 2026 ＜4000 ＜4000 Total nickel 64.6 ＜200 ＜200 Total arsenic 22.2 ＜75 ＜75 Total 1.95 ＜25 ＜5 mercury According to Table 3.3, the contents of heavy metals in sludge from Longquanshan WWTP reache the standards CJ/T 314-2009 Disposal of sludge from municipal wastewater treatment plant--Quality of sludge used in the production of cement clinker and GB/T 25031-2010 Disposal of sludge from municipal wastewater treatment plant - Quality of sludge used in making brick. Before completion of the LZSDC, sludge was transported to the brick yard for Xie brick production; after completion of the LZSDC (which has been put into operation at the end of 2013), sludge is transported via closed vehicles to the LZSDC for processing; the approved load per vehicle is

10m3 sludge, but the actual loading capacity per vehicle is about 8 ~ 9 m3 sludge, so the daily traffic volume of sludge is about eight vehicles, and the transport route is Yanghe Bridge → Yanghe Avenue→Xueyuan Road→ Eastern ring road → Zhegujiang River Bridge →Bailu 29 LZEMP II - Restructured Project

Bridge→Liutai Road→LZSDC. For Longquanshan WWTP, according to the requirements of HB [2010] No. 157 Notification on the strengthening of sludge pollution control in municipal wastewater treatment plant, every vehicle of sludge has been accompanied with a transfer order in quadruplicate: the generation unit, transport unit, receiving unit and environmental protection departments each hold one. The pollutant discharge from Longquanshan WWTP I and II are summarized in Table 3.3. Table 3.4 Pollutant discharge of Longquanshan WWTP I and II Category of Name of pollutant Pollutant discharge of I and II pollutants Wastewater (10000m3/a) 9125 Designed water output 5475 COD (t/a) Cr Actual water output 1806.8 Designed water output 1825 BOD (t/a) 5 Actual water output 565.8 Wastewater Designed water output 1825 pollutants SS(t/a) Actual water output 866.9 Designed water output 730 NH -N(t/a) 3 Actual water output 164.3 Designed water output 91.3 TP(t/a) Actual water output 91.3 Atmospheric NH3(t/a) 2.89 pollutants H2S(t/a) 0.60 Grille slag and sand 0.8 (10000 m3/a) Sludge (10000 m3/a) 2.3 Solid wastes Domestic garbage (t/a) 9.1 mercury and chromium 300 and other hazardous wastes(L/a) 3.3.2 Pollutant discharge before restructuring of Baisha WWTP (1) Wastewater According to the design, the designed water output of Baisha WWTP has reached Grade ⅠB standard of GB18918-2002 Discharge standard of pollutants for municipal wastewater treatment plant，and the effluent pollutant discharge of Baisha WWTP I is shown in Table 3.4. Table 3.5 Effluent pollutant discharge of Baisha WWTP I Sewage quantity COD (t/a) BOD (t/a) SS(t/a) NH -N(t/a) TP(t/a) (10000m3/d) Cr 5 3 Designed 10 2190 730 730 292 36.5 Actual 10 1003.8 255.5 376 73 29.2 Note: the actual discharge is estimated according to the average value of data of Baisha WWTP from January 2012 to December 2012 under actual operation. According to the Letter of Environmental Protection Accepting Opinion upon the Completion of LZEMP - Water Environment Comprehensive Treatment Project (Longquanshan WWTP and

Baisha WWTP) (HY [2010] No. 99), the effluent CODCr, BOD5, SS, NH3-N, TP and other water pollutants from Longquanshan WWTP I and II are in line with Grade ⅠB standard of the Discharge

30 LZEMP II - Restructured Project standard of pollutants for municipal wastewater treatment plant (GB12348-2002). According to the on-line monitoring data of Baisha WWTP and quarterly supervisory monitoring data by the environmental protection department, the effluent CODCr, BOD5, SS, NH3-N, TP and other water pollutants from Baisha WWTP Phase I are better than Grade ⅠB standard of the Discharge standard of pollutants for municipal wastewater treatment plant (GB12348-2002). (2) Exhaust gas Exhaust gas generated during the operation of the WWTP is odor. Grill pools, wastewater pumping house, sludge dehydration and thickening machine room, biological pool, etc. generate certain odor, which belongs to fugitive emissions. The main components of the odor are H2S and

NH3, whose emission load is 0.26t/a and 1.14t/a respectively. According to the Letter of Environmental Protection Accepting Opinion upon the Completion of LZEMP - Water Environment Comprehensive Treatment Project (Longquanshan WWTP and

Baisha WWTP) (HY [2010] No. 99), the maximum concentration of H2S, NH3 and odor from Baisha WWTP I at fugitive emission monitoring points is in line with the Grade II standard of the Discharge standard of pollutants for municipal wastewater treatment plant (GB12348-2002). Apart from final acceptance monitoring, the concentration of H2S, NH3 and odor from fugitive emissions of Baisha WWTP was not under supervisory monitoring. (3) Noise The main noise sources are wastewater treatment equipment and sludge treatment equipment, and the intensity of noise sources is 65 ~ 90 dB (A). According to the Letter of Environmental Protection Accepting Opinion upon the Completion of LZEMP - Water Environment Comprehensive Treatment Project (Longquanshan WWTP and Baisha WWTP) (HY [2010] No. 99), the monitoring value at boundary of Baisha WWTP I is in line with the Grade II standard of the Emission standard for industrial enterprises noise at boundary (GB12348-2008). Apart from final acceptance monitoring, the boundary noise from Baisha WWTP was not under supervisory monitoring. (4) Solid Wastes Solid wastes generated from Baisha WWTP in the operation process mainly include grill slag, sand, sludge, mercury and chromium and other hazardous wastes. See Table 3.6. Table 3.6 Solid Wastes from Baisha WWTP Category Grille slag and Sludge Hazardous wastes containing Domestic sand mercury and chromium garbage Output 0.31(m3/a) 1.3(m3/a) 300(L/a) 5.7(t/a) Grill residue, sediment and domestic garbage are treated by the sanitation department commissioned. According to the Letter of Environmental Protection Acceptance Opinions of LZEMP - Water Environment Comprehensive Treatment Project (Longquanshan WWTP and Baisha WWTP) (HY [2010] No. 99), the leaching toxicities of total mercury, total cadmium, total chromium, total arsenic, total lead and total nickel in sludge from Baisha WWTP I are lower than

31 LZEMP II - Restructured Project those in Table 1 under the Identification standard for hazardous wastes Identification for extraction toxicity (GB5085.3-2007), and thus they do not belong to hazardous wastes. All analysis results of heavy metals in sludge from Baisha WWTP are as follows: Table 3.7 Contents of heavy metals in sludge from Baisha WWTP I Unit (mg/kg) Disposal of sludge from Disposal of sludge from municipal wastewater Result municipal wastewater treatment plant--Quality of Baisha WWTP treatment plant - Quality of sludge used in the production Item sludge used in making brick of cement clinker CJ/T GB/T 25031-2010 314-2009 Total 179 ＜1000 ＜1000 chromium Total 6.79 ＜20 ＜20 cadmium Total lead 127 ＜1000 ＜300 Total copper 136 ＜1500 ＜1500 Total zinc 969 ＜4000 ＜4000 Total nickel 34.1 ＜200 ＜200 Total arsenic 23.4 ＜75 ＜75 Total 1.84 ＜25 ＜5 mercury As shown in Table 3.3, the contents of heavy metals in sludge from Longquanshan WWTP reache the standards CJ/T 314-2009 Disposal of sludge from municipal wastewater treatment plant--Quality of sludge used in the production of cement clinker and GB/T 25031-2010 Disposal of sludge from municipal wastewater treatment plant - Quality of sludge used in making brick. Before completion of the LZSDC, sludge was transported to the brick yard for brick production; after completion of the LZSDC (which has been put into operation at the end of 2013), sludge is transported via closed vehicles to the LZSDC for processing; the approved load per vehicle is

10m3 sludge, but the actual loading capacity per vehicle is about 8 ~ 9 m3 sludge, so the daily traffic volume of sludge is about four vehicles, and the transport route is Yuejin Road → Middle Shengli Road and West Shengli Road→ Shuangchong Bridge →West Tanzhong Road→Liutai Road→LZSDC. For Baisha WWTP, according to the requirements of HB [2010] No. 157 Notification on the strengthening of sludge pollution control in municipal wastewater treatment plant, every vehicle of sludge has been accompanied with a transfer order in quadruplicate: the generation unit, transport unit, receiving unit and environmental protection departments each hold one. Pollutant discharge of Baisha WWTP I is summarized in Table 3.6. Table 3.8 Pollutant discharge of Baisha WWTP I No. Name of pollutant Emissions 32 LZEMP II - Restructured Project

Wastewater Wastewater(10000m3/a) 3650 pollutants Designed water output 2190 COD (t/a) Cr Actual water output 1003.8 Designed water output 730 BOD (t/a) 5 Actual water output 255.5 Designed water output 730 SS(t/a) Actual water output 376 Designed water output 292 NH -N(t/a) 3 Actual water output 73 Designed water output 36.5 TP(t/a) Actual water output 29.2 Atmospheric NH3(t/a) 1.14 pollutants H2S(t/a) 0.26 Solid wastes Grille slag and sand (10000 m3/a) 0.3 Sludge (10000 m3/a) 1.3 Domestic garbage (t/a) 5.1 Mercury and chromium and other 300 hazardous wastes(L/a) 3.4 Survey and Evaluation of Environmental Quality Status 3.4.1 Status monitoring of atmosphere, surface water, groundwater and acoustic environment The regional environmental quality monitoring and evaluation results of Baisha WWTP II see Table 3.7, and the locations of monitoring points are shown in Figure 3.2. The regional environmental quality monitoring and evaluation results of Longquanshan WWTP III are shown in Table 3.8, and the locations of the monitoring points are shown in Figure 3.3. Table 3.9 Regional environmental quality monitoring and evaluation results of Baisha WWTP II Environment Item Content factors Sulfur dioxide, nitrogen dioxide, total suspended particulates, H2S Monitoring and NH3 were monitored during December 31, 2013 to January 6, time 2014; the concentration of odor was monitored during March 3 to 5, 2014 and March 7 to 10, 2014 Monitoring Odor: Liuzhou Environmental Protection Monitoring Station; other unit factors: Guangxi Poly Environmental Monitoring Co., Ltd. Fuhong Weilanwan (1 #), Riverside Century Town (2 #), Lvshui Yunjian Community (# 3), Affiliated Medical School of Guangxi Monitoring University of Science and Technology (4 #), Liuzhou Xingzhi Primary point School (5 #), and First Affiliated Hospital of Guangxi University of Science and Technology (6 #) Atmospheric Monitoring Sulfur dioxide, nitrogen dioxide, total suspended particulates, H S environment 2 factor and NH3, odor concentration Sulfur dioxide, nitrogen dioxide and total suspended particulates follow Grade II standard of GB3095-2012 Ambient Air Quality Executive Standard, H2S and NH3 follow the maximum allowable concentration standard of harmful substances in the air of residential areas set out in TJ36-79 Sanitary standard for the design of industrial enterprise, and there is no evaluation criteria for odor concentration TSP daily concentration value of Riverside Century Town and Monitoring Liuzhou Xingzhi Primary School exceeds the standard; the hourly result concentration and daily average concentration of SO2 and NO2 at each monitoring point can meet Grade II limit requirements of

33 LZEMP II - Restructured Project

GB3095-2012 Ambient Air Quality Standard; the hourly concentration value of H2S and NH3 at each monitoring point can meet the maximum allowable concentration of harmful substances in the air of residential areas set out in TJ36-79 Sanitary standard for the design of industrial enterprise, and the odor concentration is less than 10. The main reason for TSP daily average concentration of 2 # Riverside Century Town and 5 # Liuzhou Xingzhi Primary School exceeding the standard is great impact by regional construction dust and flying dust from transport vehicles. Monitoring January 12 to 14, 2014 and March 4 to 6, 2014 time Guangxi Zhongzhen Detection Technology Co., Ltd. (January 12 to Monitoring 14), and Liuzhou Environmental Protection Monitoring Station unit (March 4 to 6) Treated water from Baisha WWTP flows into the upstream reaches Monitoring of Liujiang River estuary by 500m (1 # -1 #), and the downstream section reaches by about 1000m (2 # -2 #) and 3000m (3 # -3 #) pH, permanganate index, CODCr, volatile phenol, dissolved oxygen, Monitoring BOD5, ammonia, SS, total phosphorus, total nitrogen, petroleum, factor cadmium, lead, zinc, hexavalent chromium, arsenic, mercury, fecal coliform. Follow Class Ⅲ standard of GB3838-2002 Enironmental quality Executive standard for surface water, and the suspended solids not included in Surface standard the standard are shown in SL63-94 Quality standards for surface water water resources environment The concentrations of total nitrogen and fecal coliform in monitoring factors at three sections of Liujiang River being evaluated exceeded the standard; other evaluation indicators in this monitoring period were able to reach Class III water quality standard of GB3838-2002 Environmental quality standard for surface water, and SS reached Grade Ⅲ requirements of SL63-94 Quality standards for surface water resources Monitoring result The reason for fecal coliform and total nitrogen exceeding the standard is warm and humid climate in Liuzhou, which is conducive to the breeding and reproduction of fecal coliform; tail water from WWTPs is centralized and discharged into the river section being evaluated; because Shatang WWTP has not been built, wastewater being collected within the scope of Shatang WWTP is untreated in the vicinity of Zhegujiang Bridge and is discharged through Xianglan River directly into Liujiang River. Monitoring January 2-4, 2014 time Monitoring Guangxi Poly Environmental Monitoring Co., Ltd. unit Monitoring Queershan Park (# 1) and Zhegujiang refrigerator (2 #) point Groundwater pH value, permanganate index, nitrates, volatile phenol, ammonia Monitoring Environment nitrogen, total coliforms, total bacteria, cadmium, lead, zinc, factor chromium (VI), arsenic, mercury Executive Implement Class Ⅲ water quality standard of GB/T14848-93 standard Groundwater Quality Standard The standard monitoring factors of total coliforms, total bacterial Monitoring counts and volatile phenols in groundwater at monitoring points in result the project area are bigger than 1, but other monitoring factors are

34 LZEMP II - Restructured Project

less than 1; in addition to total coliforms, total bacteria and volatile phenols, other monitoring factors can reach Class Ⅲ water quality standard of GB/T14848-93 Groundwater Quality Standards. The reason for the total coliforms and total bacterial counts in regional groundwater exceeding the standard may be warm and humid climate in Liuzhou, which is conducive to the growth of bacteria, and the impact by regional living surface sources. The reason for volatile phenols exceeding the standard may be caused by the infiltration of regional production wastewater from coking enterprise into groundwater. Monitoring January 2 to 3, 2014 time Monitoring Guangxi Poly Environmental Monitoring Co., Ltd. unit Six factory boundary noise monitoring points were set, of which 4 #, Monitoring 5 # factory boundary points are the boundary of the expanded point WWTP and three sensitive points are monitoring points Acoustic Monitoring environment Equivalent sound level L factor eq Executive Evaluate according to Class 2 standard of GB3096-2008 standard Environmental quality standard for noise The current sound monitoring values of the boundary and Monitoring surrounding sensitive points at Baisha WWTP during daytime and result nighttime are in line with the Class 2 standard of GB3096-2008 Environmental quality standard for noise.

The regional environmental quality monitoring and evaluation results of Longquanshan WWTP III are shown in Table 3.6, and the locations of the monitoring points are shown in 3.2. Table 310 Regional environmental quality monitoring and evaluation results of Longquanshan WWTP Ⅲ Environment Item Content factors Sulfur dioxide, nitrogen dioxide, total suspended particulates, H2S Monitoring and NH3 were monitored during December 31, 2013 to January 6, time 2014; the concentration of odor was monitored during March 3 to 5, 2014 and March 7 to 10, 2014 Monitoring Odor: Liuzhou Environmental Protection Monitoring Station; other unit factors: Guangxi Poly Environmental Monitoring Co., Ltd. Jiutoushan village (1#) , Taian community(2#) , Hongtai Monitoring Atmospheric Mingting(3#) , boundary south of the third phase project (4#) , point environment Liuzhou 24th Middle School(5#) and Liuji living area(6#) Monitoring Sulfur dioxide, nitrogen dioxide, total suspended particulates, H2S factor and NH3, odor concentration Sulfur dioxide, nitrogen dioxide and total suspended particulates follow Grade II standard of GB3095-2012 Ambient Air Quality Executive Standard, H S and NH follow the maximum allowable concentration standard 2 3 of harmful substances in the air of residential areas set out in TJ36-79 Sanitary standard for the design of industrial enterprise,

35

LZEMP II - Restructured Project

and there is no evaluation criteria for odor concentration

TSP daily concentration value of Jiutoushan village and Liuji living area exceeds the standard; the hourly concentration and daily average concentration of SO2 and NO2 at each monitoring point can meet Grade II limit requirements of GB3095-2012 Ambient Air Quality Standard; the hourly concentration value of H2S and NH3 at each monitoring point can meet the maximum allowable Monitoring concentration of harmful substances in the air of residential areas result set out in TJ36-79 Sanitary standard for the design of industrial enterprise, and the odor concentration is less than 10. The main reason for TSP daily average concentration of Jiutoushan village and Liuji living area exceeding the standard is great impact on the surrounding atmosphere by dust from factory transport vehicles running around the monitoring points. Monitoring December 26 to 28, 2013 and March 4 to 6, 2014 time Monitoring Liuzhou Environmental Protection Monitoring Station unit treated water from Longquanshan WWTP flows into the upstream Monitoring reaches of Liujiang River estuary by 500m (1 # -1 #), and the section downstream reaches by about 1000m (2 # -2 #) and 3000m (3 # -3 #) pH, permanganate index, CODCr, volatile phenol, dissolved oxygen, Monitoring BOD5, ammonia, SS, total phosphorus, total nitrogen, petroleum, factor cadmium, lead, zinc, hexavalent chromium, arsenic, mercury, fecal coliform. Follow Class Ⅲ standard of GB3838-2002 Environmental quality Executive standard for surface water, and the suspended solids not included in standard the standard are shown in SL63-94 Quality standards for surface water resources The monitoring values of pH, permanganate index, CODCr, volatile phenol, dissolved oxygen, BOD5, ammonia nitrogen, total Surface phosphorus, petroleum, cadmium, lead, zinc, chromium (VI), arsenic water and mercury at monitoring sections of Liujiang River being evaluated environment in this monitoring period were able to reach Class III water quality standard of GB3838-2002 Environmental quality standard for surface water, and SS reached Grade Ⅲ requirements of SL63-94 Quality standards for surface water resources. The monitoring value of fecal coliform at the monitoring section 1000m at the downstream reaches of tail water discharge outlet of Longquanshan WWTP was more than surface water Class Ⅲ standard, but that of other Monitoring sections reached Class Ⅲ standard. The monitoring value of total result nitrogen at three monitoring sections was more than Class Ⅲ standard The reason for fecal coliform and total nitrogen exceeding the standard is ① warm and humid climate in Liuzhou, which is conducive to the breeding and reproduction of fecal coliform; ②tail water from WWTPs is centralized and discharged into the river section being evaluated; ③because Lianhuashan pumping house has not been built, domestic wastewater along Liushi Road and in the vicinity of Lianhua Passenger Transport Station can not enter Longquanshan WWTP but is discharged directly into Liujiang River near Yanghe Bridge.

36 LZEMP II - Restructured Project

Monitoring January 2-4, 2014 time Monitoring Guangxi Poly Environmental Monitoring Co., Ltd. unit Monitoring Longquanshan WWTP(1#) point pH value, permanganate index, nitrates, volatile phenol, ammonia Monitoring nitrogen, total coliforms, total bacteria, cadmium, lead, zinc, factor Groundwater chromium (VI), arsenic, mercury Environment Executive Implement Class Ⅲ water quality standard of GB/T14848-93 standard Groundwater Quality Standards

Each water quality monitoring factor of groundwater at monitoring Monitoring points did not exceed the standard in the monitoring period, and all result could meet Class Ⅲ water quality standard of GB/T14848-93 Groundwater Quality Standard.

Monitoring January 2 to 3, 2014 time Monitoring Guangxi Poly Environmental Monitoring Co., Ltd. unit Seven factory boundary noise monitoring points were set, of which 4 # factory boundary point is the boundary of the expanded WWTP, and the boundary is adjacent to the sensitive point Qiaodi Branch Monitoring Third Brigade, Liuzhou Social Security Patrol and Prevention Corps point nearest to the project, so 4 # factory boundary point can reflect the Acoustic current acoustic environment quality of Qiaodi Branch Third Brigade, environment Liuzhou Social Security Patrol and Prevention Corps Monitoring Equivalent sound level L factor eq Executive Evaluate according to Class 2 and Class 4a standard of standard GB3096-2008 Environmental quality standard for noise The current sound monitoring value of the boundary north of the project during daytime and nighttime is in line with the 4a standard of Monitoring GB3096-2008 Environmental quality standard for noise, and the result monitoring values of other monitoring points meet Class 2 standard of GB3096-2008 Environmental quality standard for noise.

37 LZEMP II - Restructured Project

图例 Diagram 大气监测点 atmospheric monitoring point

38 LZEMP II - Restructured Project

声监测点 acoustic monitoring point 地下水监测点 groundwater monitoring point 地表水监测点 surface water monitoring point 比例尺 scale Figure 3.3 Diagram of current environmental monitoring points of Longquanshan WWTP Ⅲ 3. 4.2 Current Survey and Assessment of ecological landscape environment 3.4.2.1 Current survey of terrestrial ecological environment (1) status quo of terrestrial vegetation The project is located at the shore of Liujiang River, where land development is mature, and the vegetation species are urban greening vegetation, mainly including Palmetto, bamboo, banana, Bauhinia, Durantarepenscv Goldenleares, Erythrina variegata, osmanthus, banyan trees, grasses and vegetables, not involving old trees and famous trees, native vegetation and plant species protected by the country. (2) status quo of terrestrial animal Human activities are frequent within the scope of land assessment on the project, and human inhabited areas are distributed; the degree of influence on ecological environment by human activities is high, artificial and semi-artificial ecosystems are dominant, wild animals mainly include rodents, insects and birds, and no nationally protected wildlife habitat and activities are found. 3.4.2.2 status quo of watery ecological environment After Honghua power station stores water and generates power, Liujiang River within the range of Liuzhou city is located within Honghua power station reservoir. According to surveys, there are 58 categories of 134 phytoplankton species, and 66 kinds of benthic animals in Liujiang River, mainly including arthropods, such as Corbicula fluminea, Tintinnidium fluviatile and other mollusks, of which Bellamya and are endemic species. According to the geographic zoning of fish, Liujiang River is located at Pearl River sub-region of Oriental Pearl South China; among 151 kinds of pure freshwater fish, there are a total of 54 unique species in South China, including unique 25 kinds in the Pearl River sub-region. The major fish in Liujiang River Basin contains eel, Southern Opsariichthys, Erythroculter hypselonotus, Ptychidio jordani, Osmanthus mud carp, Eastern Garra fish, carp, mud fish, finless eel, Siniperca kneri, and Clarias fuscus and so on. The compositions of fish species in Liujiang River are quite different, of which the fishing objects in downstream (below Luoqing river mouth) Liujiang mainly are Erythroculter spp, Cyprininae species, black carp, grass carp, silver carp, bighead carp, Semilabeo notabilis, Squaliobarbus curriculus, Dasyatis akajei, eel, catfish genus and mandarinfish class and other large fish species; Rongjiang River and upstream Xunjiang River, and Duliu River mainly accommodate white turtle species, Parator and other Barbinae fish as well as Otophysi and other medium-sized fish species; small fish grow in other tributaries. Rich biological resources in Liujiang River and fish bait biological resources form a complex

39 LZEMP II - Restructured Project aquatic ecosystem. After Honghua water power station has stored water and generated power, a large increase in the reservoir phytoplankton has taken place, but the number of diatoms decreases; the number of zooplankton and biomass in the reservoir increase, the quantity of benthos species reduces; the quantity of acute waterborne spawning (such as white snapper, dace and Ptychidio jordani) and the fish producing drifting dace eggs (such as black carp, grass carp, silver carp, bighead carp, Squaliobarbus curriculus and perch) in the reservoir is reduced. In recent years, in order to effectively prevent the depletion of fishery resources in Liujiang River, Liuzhou fishery sector has launched artificial restocking on a regular basis, mainly releasing silver carp and bighead carp. Under the circumstances consulted to Liuzhou fishery sector, no fish spawning field is distributed within the water areas of the project being assessed, and recently, no records on rare and protected aquatic organisms are found out. 3.4.2.3 Status quo of water and soil loss According to No.2 Bulletin on the Division of National Key Prevention Zones for Soil Erosion issued in 2006 by the Ministry of Water Resources and the Notification of the Regional Government on the Division of Key Prevention Zones for Soil Erosion (GZF [2000] No. 40) issued on August 24, 2000 by the Guangxi Zhuang Autonomous Region People's Government, the project area belongs to a key supervised area for soil erosion announced by Guangxi Zhuang Autonomous Region People's Government. The area where the project is located belongs to southwest mountainous area in the national soil erosion type of gradeⅡregionalization, and is Guizhong mountainous area in the soil and water conservation planning zones of Guangxi autonomous region; according to the Standards for classification and gradation of soil erosion (SL190-2007), the allowable soil loss is 500t/(km2.a), and soil erosion is mainly based on mild water erosion. Judging from the site investigation, the project area’s soil erosion is mainly mild water erosion; partially, bare ground excavation is caused by perturbations of other works in construction, and the intensity of soil erosion is mild ---- moderate erosion and obvious loss. 3.5 Delineation of drinking water source protection areas in Liuzhou First-grade Protection Zone: 1. First-grade Protection Zone of Liuxi Waterworks: 1.3km long and 110m wide section of Liujiang River on the right shore from Liuxi Waterworks intake 1km upstream to 0.3km downstream and 50m land along the shore under normal water level of Honghua power station; 2. First-grade Protection Zone of Chengzhong Waterworks: 1.3km long and 110m wide section of Liujiang River on the left shore from Chengzhong Waterworks intake 1km upstream to 0.3km downstream; 3. First-grade Protection Zone of Liunan Waterworks: 1.1km long and 110m wide section of Liujiang River on the right shore from Liunan waterworks intake 1km upstream to 0.1km downstream and coastal land outside the flood bank along west dike road; 4. First-grade Protection Zone od Liudong Waterworks: 1.1km long and 110m wide section of Liujiang River on the right shore from Liudong Waterworks intake 1km upstream to 0.1km downstream. 40 LZEMP II - Restructured Project

Second-grade Protection Zone: 1. Second-grade Protection Zone of Liujiang River: from 1km Xinwei upstream to 0.3km Liudong Waterwork intake downstream, deducting the above water scope of First-grade Protection Zone, the section of Liujiang River with a total length of 17.2km and the land 50m deep on both sides under normal water level of Honghua power station (where there are flood banks or Riverside Roads, the flood banks or Riverside Roads to the river; where there are no flood banks or Riverside Roads, 50m along the shore under normal water level of Honghua power station); 2. Second-grade Protection Zone of Xinxu River: 2km section of Xinxu River from its into Liujiang River estuary to the upstream segment and the land 50m deep on both sides. Quasi-protected zones: 1. Liujiang River quasi-protected zones: 10km long Liujiang river from Lutang section to 1km Xinxu section upstream and the land 1km deep on both sides under the normal water level of Honghua power station; 2. Xinxu River quasi-protected zone: 7km long section of Xinxu river from Xinxu river source to 2km Liujiang River estuary upstream and the land 1km deep on both sides. Baisha WWTP is located north of Baisha Village, Libei District, Liuzhou, and Longquanshan WWTP is located Jiutoushan road in Liuzhou; with reference to the delineation of Liuzhou drinking water source protection zones, the construction sites of Baisha WWTP and Longquanshan WWTP are located at the downstream reaches of Liuzhou drinking water source protection areas, outside the drinking water source protection zones of Liuzhou. 3.7 Overview of pollution sources around the project Baisha WWTPArea is mainly based in living district and school, and the surrounding businesses see Table 3.11. Table 3.11 Distribution of surrounding businesses at Baisha WWTP Direction and Content of No. Name of sensitive point distance relative to Main pollutants production WWTP Waste Liuzhou Jinhui Resources 1 Near the north recycling and Dust and noise recycling Maolong Branch packaging Liubei Mechanized Livestock Waste water, odor 2 Southwest 50m Slaughterhouse slaughter and noise Liuzhou Yisen Materials Second-hand Waste water, Trade Co., Ltd. and Liuzhou 3 South 20m car trading and exhaust gas and Liuming authorized service vehicle repair noise station of Isuzu Motors Longquanshan WWTP area belongs to one of the urban built-up areas, where the major pollution sources are from exhaust emissions and noise from vehicles, as well as equipment noise generated by Liuzhou Tianchong Heavy Machinery Co., Ltd., Liuzhou Zhanhang Electric Equipment Co., Ltd., Liuzhou Rixing Textile Co., Ltd. and other factories in the production process. The companies here see Table 3.12. Table 3.12 Distribution of pollution sources from enterprises around Longquanshan WWTP

41 LZEMP II - Restructured Project

Direction and distance No. Company Name Product Pollutant relative to the WWTP Liuzhou Gio Trade Co., Vehicle Vehicle noise and 1 North 12m Ltd. transport exhaust noise Wooden crates and a Liuzhou T'angge Wood Mechanical noise, and 2 Southeast 5m variety of Equipment Processing wood dust wooden pallets Mechanical noise, and a Northeast Machinery 3 Jinqiao Co., Ltd. small amount of craft 85m Parts waste gas Mechanical noise, and a Liuzhou YYongsheng Machinery 4 North 290m small amount of craft Machinery Parts Factory Parts waste gas Liuzhou Shenpeng Northeast Building Vehicle noise and flying 5 Building Materials Co., 243m Materials dust Ltd. Mechanical noise, and a Liuzhou Xinhui Precision Machinery 6 West 207m small amount of craft Machinery Co., Ltd. Parts waste gas Liuzhou Howard Mechanical noise, and a Chemical 7 Chemical Machinery Co., West 236m small amount of craft Machinery Ltd. waste gas LiuzhouYufeng Sanjian Mechanical noise, and a Hardware 8 Metal Machinery West 238m small amount of craft Machinery Processing Co., Ltd. waste gas Liuzhou Jiatian Drinking Drinking 9 West 245m Domestic wastewater Water Co., Ltd. Water Mechanical noise, and a Liuzhou Tengyue Machinery 10 West 248m small amount of craft Machinery Co., Ltd. Parts waste gas Liuzhou Yale Food Co., 11 West 456m Food Pacaging waste Ltd. Mechanical noise and Liuzhou Yuncheng 12 West 340m Plastic pipe craft waste gas and Knitting Co., Ltd. wastewater Liuzhou Zhanhang Mechanical noise, and a Electrical 13 Electrical Equipment West 475m small amount of craft Equipment Company waste gas Mechanical noise, and a Liuzhou Tianyi Auto 14 West 413m Auto Parts small amount of craft Parts Co., Ltd. waste gas, wastewater Liuzhou Rixing Textile Southwest Textile Mechanical noise and 15 Co., Ltd. 480m products craft waste gas Liuzhou Tianzhong Machinery Mechanical noise, and a Southwest 16 Machinery Technology and small amount of craft 78m Co., Ltd. equipment waste gas, wastewater Machinery Mechanical noise, and a Liuzhou Wuling Liuji Southwest 17 and small amount of craft Power Co., Ltd. 350m equipment waste gas, wastewater

42 LZEMP II - Restructured Project

4 Environmental Impact Assessment 4.1 Environmental Impact Analysis during Construction Phases 4.1.1 Water Environment Impact Analysis Wastewater during construction phases is mainly domestic wastewater of construction workers, construction wastewater and ground surface runoff formed by rain at the construction site. Main pollutants in the domestic wastewater are COD, BOD5, SS and NH3-N, which concentration is about 300mg/L, 180mg/L, 180mg/L and 40mg/L, respectively. Construction wastewater is mainly construction wastewater, water for all kinds of construction equipment and vehicle washing water during structural phase, and major pollutants are SS and a small amount of petroleum. The concentration of SS is about 1000mg/L. Sewage discharge during construction is shown in Table 4.1. Table 4.1 Sewage discharge during construction construction Domestic wastewater Construction Project name workers discharge wastewater discharge Baisha WWTP II 50 persons 6m3/d 2m3/d Longquanshan WWTP Ⅲ 50 persons 6m3/d 2m3/d (1) environmental impact analysis of surface water After domestic wastewater generated from construction workers is treated by septic tanks and canteen waste water is treated by grease traps, domestic wastewater from the construction site of Baisha WWTP is discharged into the treatment system of Baisha WWTP Ifor treatment, domestic wastewater from the construction site of Longquanshan WWTP is discharged into the treatment system of Longquanshan WWTP I and IIfor treatment, and the treatment results reach GradeⅠB standard of GB18918 Discharge standard of pollutants for municipal wastewater treatment plant before they are discharged into Liujiang River, with little effect on Liujiang River. Drainage in the construction process contains a lot of cement, mortar and massive garbage, etc., so construction units need to set up grit chambers and grease traps inside the field, for simple sedimentation and oil separation of construction wastewater, and set geotechnical cloth at the outlets to intercept large lumps and sediment; after treatment it can be used for watering the construction site to make dust fall and can also be comprehensively utilized. (2) Environmental impact analysis of groundwater Common groundwater pollution is surface groundwater contamination caused by the infiltration of vadose zone. Deep diving and confined water pollution is caused through a variety of well bores, potholes and faults, and they as a channel link the aquifers with ground pollution sources or contaminated aquifers, causing groundwater to be polluted. After pollutants enter into groundwater, as groundwater moves, the groundwater contamination is formed. According to 1/20000 regional hydrogeological census data and the survey results, Baisha WWTP

43 LZEMP II - Restructured Project area and Longquanshan WWTP area belong to a geomorphology of river terraces and the regional groundwater is classified into Quaternary loose rock pore water, and carbonate rock fissure cave water. The Quaternary loose rock pore water mainly occurs in the soil pores, and is mainly recharged by atmospheric precipitation; the site carbonate rock fissure cave water mainly occurs in the caves and grike zones in underlying dolomitic limestone, mainly receiving vertical replenishment by the lateral and upper Quaternary loose rock pore water near the groundwater, with weak pressure resistance. The project is located in the regional groundwater discharge area. The elevation of stable groundwater level at the area of Baisha WWTP is 77.0 ~ 78.27m, and groundwater flows from the northwest to southeast to Liujiang River; the project site is a regional groundwater discharge area. The lowest elevation of all structures in Baisha WWTP II is 79.2m, higher than the perennial stable elevation of regional groundwater, so the civil construction of Baisha WWTP II will not affect the groundwater runoff channel herein. The elevation of stable groundwater level at the area of Longquanshan WWTP is 77.0～77.5m, and the lowest elevation of all structures in Longquanshan WWTP II is essentially higher than 80.5m, higher than the perennial stable elevation of regional groundwater, so the civil construction of this project will not affect the groundwater runoff channel herein. Domestic wastewater and construction wastewater generated by the project during the construction period, after proper treatment, have little effect on groundwater. Construction wastewater, after oil removal and precipitation can be reused for the construction site. To prevent the construction wastewater from generating a pollution impact on groundwater quality, in the project construction, washing vehicles on the non-hardened field should be avoided, placing oil drums directly on the bare ground should be avoided, and dumping waste oil from construction machinery at the construction site is prohibited; after the above measures are taken, the project’s construction wastewater has little effect on groundwater quality. 4.1.2 Analysis on Atmospheric Environmental Impact 4.1.2.1 Dust The main sources of dust in this project are: ①dust from demolition, ②road transport dust caused by transport vehicles and ③wind dust from open yards and exposed fields. ①Dust from demolition One to two-story brick structures would be dismantled for the project, and the demolition method used in the demolition process is mainly dominated by mechanical demolition, combining manual demolition and mechanical demolition. Dust from demolition construction is of fugitive emission, and is mainly from housing demolition spots and construction waste dump sites. According to the analogy with the same types of projects, at TSP concentration 50m in the downwind direction from the demolition site is 0.398mg/m3. Civilized construction in the demolition process of buildings is essential, and construction waste generated during demolition of buildings is timely removed while timely watering with sprinkler enables dust to fall at the workplace, which can greatly reduce the

44 LZEMP II - Restructured Project impact of dust from demolition. Since the buildings to be demolited are simple, the range of influence after taking measures can be fundamentally controlled within 50m range around. The distance from Lvshui Yunjian Community and the affiliated medical school dormitory of Liuzhou Medical University to the major demolition sites (parking lot office building on the collective land of Baisha Village and bachelor quarters of Baisha WWTP) of Baisha WWTP II is about 100m, and there are no Environmentally Sensitive Points within 50m range around the major demolition sites, so the dust from the project demolition has little effect. The distance from Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps to the demolition point of Longquanshan WWTP III is greater than 50m, and there are no Environmentally Sensitive Points within 50m range around the buildings to be demolited, so the dust from demolition works for Longquanshan WWTP III has little effect. ②wind dust and power dust Dust arising from construction is mainly in the phase of civil construction. According to the reason for dusting, it can be classified into wind dust and power dust, of which wind dust is mainly floating dust from the surfaces of building materials (such as sand and cement) at open sites and of exposed construction areas, and dust is generated due to dry weather and high winds; within 200m range outside the construction site, TSP concentration in the atmospheric environment can be up to Grade II of GB3095-2012 Ambient Air Quality Standard. According to the distribution of sensitive points, the sensitive point of Baisha WWTP II Lvshui Yunjian Community, and the affiliated secondary health school of Liuzhou Medical College are within the exceeding scope, while the maximum number of people affected is 6000 persons. The sensitive point of Longquanshan WWTP Ⅲ, Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps is within the exceeding scope, and the maximum number of people affected is 4 persons. Power dust is mainly caused by resuspension of dust particles generated by external forces in the handling and mixing processes of building materials, of which the dust arisen from construction and vehicle handling is the most serious. According to the surveys, road transport dust mainly affects both sides of transport routes, and the major transportation routes for Baisha WWTP II are the municipal roads and Yuejin Road south of the WWTP, so the sensitive points along the municipal roads and Yuejin Road south of the WWTP will be affected by the project’s transport dust. The major transportation routes for Longquanshan WWTP III are the municipal roads, Jiutoushan road and Liaoyuan road east of the WWTP, but the eastern municipal roads have no Environmentally Sensitive Points, so the sensitive points along Jiutoushan road and Liaoyuan road will be affected by transport dust in the project. In order to minimize the regional atmospheric environmental impact during the construction of the project, construction units must harden the main construction road surfaces, set enclosures at construction plant boundaries, control the speed of construction vehicles, keep the site roads

45 LZEMP II - Restructured Project

clean, strengthen the stacking and management of various materials, spray water to make dust fall, and improve dust control measures at storage yards. 4.1.2.2 Exhaust gas

Construction vehicles, loaders, excavators, etc. will produce CO, THC. NO2 and other hydrocarbons atmospheric pollutants because of their fuel, but these pollutant emissions are very small and intermittent. Construction units must use transport vehicles and construction equipment in line with national emission standards, strengthen maintenance and repair of equipment and vehicles, and make machinery and vehicles in good working condition; the use of scrapped vehicles and eliminated equipment is prohibited, to reduce the impact of exhaust gas from construction machinery on the ambient environment. 4.1.3 Analysis on Acoustic environmental Impact 4.1.3.1 Environmental analysis in the demolition phase The noise attenuation with distance of construction equipment in the demolition phase is shown in Table 4.3 Table 4.2 Attenuation of main construction machinery noise with distance Unit: dB(A)

Distance from Distance from sound source construction point (m) ｍａｃｈｉｎｅ 5 10 20 40 60 80 100 150 200 300 ｅ Excavator 90 84 78 72 69 66 64 61 58 55 Electric drill 90 84 78 72 69 66 64 61 58 55 Artificial percussion 70 64 58 52 49 46 44 41 38 35 In the demolition process, the noise outside 180m in the day and outside 560m at night can reach Class 2 standard of GB3096-2008 Environmental quality standard for noise. Generally, demolition is carried out in the day, and the prediction results of sensitive points during demolition phase see Table 4.3. Table 4.3 Prediction results of sensitive points during demolition phase Unit: dB(A) Maximum Forecast Background Predicted Standard Added Exceeding Sensitive point contribution time value value limit value value value Lvshui Yunjian 54 50.4 55.6 5.2 +0 Community Affiliated medical school domitory of Liuzhou 54 50.8 55.7 4.9 +0 Medical University Day Riverside 60 Century Town 51.2 50.4 53.8 2.6 +0 Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol 56 46 56.4 10.4 +0 and Prevention Corps Note the amount of wall noise insulation is 10 dB (A), and the status value above is the monitoring value of January 2, 2014.

46 LZEMP II - Restructured Project

Seen from Table 4.3: In the day time, the contribution value and predicted value of demolition noise to Lvshui Yunjian Community, the dormitory and classroom of the affiliated medical school, Liuzhou Medical University, Riverside Century Town and Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps can reach the Class 2 standard of GB3096-2008 Environmental quality standard for noise. Demolition construction is prohibited for the project at night, so there is no noise. 4.1.3.3 Impact analysis of building construction noise Without considering the attenuation of construction noise by construction wall (barrier), only relying on geometric divergence attenuation, attenuation by air absorption, ground effect attenuation, and attenuation caused by other aspects, the intensity and scope of noise pollution during the project construction are predicted, and the prediction results see Table 4.4. Considering the attenuation of construction noise by construction wall (barrier), in case of Abar=10dB (A), the intensity and scope of noise pollution during the project construction are predicted, and the prediction results are shown in Table 4.5. Table 4.4 Predicted table of pollution intensity and range of construction noise (with no fence barrier) Unit: dB (A) Intensity Predicted value of noise at a different distance (m) from construction Machinery of noise machinery to plant boundary name source 10 20 30 60 100 150 200 350 Crane 75 55.0 49.0 45.5 39.4 35.0 31.5 29.0 24.1 Loader 86 66.0 60.0 56.5 50.4 46.0 42.7 39.9 35.1 Vibrator 100 80.0 74.0 70.5 64.4 60.0 56.5 54.0 49.1 Excavator 89 69.0 63.0 59.5 53.4 49.0 45.5 42.9 38.1 Bulldozer 98 78.0 72.0 68.5 62.4 58.0 54.5 52.0 47.1 Concrete delivery 100 80.0 74.0 70.5 64.4 60.0 56.5 54.0 49.1 pump Electric saw 100 80.0 74.0 70.5 64.4 60.0 56.5 54.0 49.1 Table 4.5 Predicted table of pollution intensity and range of construction noise (with fence barrier) Unit: dB (A) Intensity Predicted value of noise at a different distance (m) from construction Machinery of noise machinery to plant boundary name source 10 20 30 60 100 150 200 350 Crane 75 45.0 39.0 35.5 29.4 25.0 21.5 19.0 14.1 Loader 86 56.0 50.0 46.5 40.4 36.0 32.7 29.9 25.1 Vibrator 100 70.0 64.0 60.5 54.4 50.0 46.5 44.0 39.1 Excavator 89 59.0 53.0 49.5 43.4 39.0 35.5 32.9 28.1

47 LZEMP II - Restructured Project

Bulldozer 98 68.0 62.0 58.5 52.4 48.0 44.5 42.0 37.1 Concrete 100 70.0 64.0 60.5 54.4 50.0 46.5 44.0 39.1 delivery pump Electric saw 100 70.0 64.0 60.5 54.4 50.0 46.5 44.0 39.1 Table 4.5 shows that when there are fence barriers at the construction site, after 10m attenuation in the daytime and after about 10 ~ 100m attenuation at night, noise can achieve GB12523-2011 Emission standard of environment noise for boundary of construction site. Where construction machinery and equipment are under construction near field boundaries, the boundary noise is more than GB12523-2011 Emission standard of environment noise for boundary of construction site. According to the construction site area for the project construction site, in consideration of boundary fence attenuation, the contribution values of construction noise in the daytime and at nighttime to sensitive points can be calculated, and the results are shown in Table 4.6. Table 4.6 Contribution value of construction noise to sensitive point Unit: dB(A) Day contribution Night Predicted position Distance value contribution value Lvshui Yunjian Community 60m 59.2 59.2

Baisha Village 30 m 65.3 65.3 Affiliated medical school of 20m 68.8 68.8 Liuzhou Medical University Riverside Century Town 200m 39.7 39.7 Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol 10m 74.8 74.8 and Prevention Corps By superimposing the contribution value of construction noise to sensitive points and the current environmental value, the impact of construction noise on sensitive targets in the project can be calculated, and the details are shown in Table 4.7 and Table 4.8. Table 4.7 Predicted value of construction noise to sensitive point (Day) Unit: dB(A)

Background contribution Predicted Added Predicted position Standard Exceeding value value value value Lvshui Yunjian Community 50.4 59.3 59.7 9.5 - Baisha Village 50.8 65.3 65.5 14.5 5.5 Affiliated medical school of 68.9 60 50.8 68.8 18.9 8.9 Liuzhou Medical University Riverside Century Town 50.4 39.7 50.8 0.4 - Qiaodi Branch Third Brigade, Liuzhou Social 46 74.8 74.8 28.8 60 +14.8 Security Patrol and Prevention Corps Note: the current value above is the monitoring value of January 2, 2014, and the status data of Baisha Village are the monitoring data of the affiliated college of Guangxi Medical University. Table 4.8 Predicted value of construction noise to sensitive point (Night ) Unit: dB(A) 48 LZEMP II - Restructured Project

Background contribution Predicted Added Predicted position Standard Exceeding value value value value Lvshui Yunjian Community 41.6 59.3 59.4 18.2 +9.4 65.3 Baisha Village 42.1 65.3 23.2 50 +15.3 Affiliated medical school of 68.8 42.1 68.8 26.7 +18.8 Liuzhou Medical University Riverside Century Town 40.6 39.7 43.2 2.6 - Qiaodi Branch Third Brigade, Liuzhou Social 42 74.8 74.8 32.8 50 +24.8 Security Patrol and Prevention Corps Table 4.7 and Table 4.8 show that, under the most adverse effect, the maximum predicted value of construction noise from the project to Lvshui Yunjian Community, Baisha Village, the affiliated medical school of Liuzhou Medical University, Riverside Century Town, and Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps in the daytime is 59.7dB (A), 65.5 dB (A), 68.9 dB (A), 50.8 dB (A) and 74.8 dB (A) respectively, and that of Lvshui Yunjian Community and Riverside Century Town can reach Class 2 standard of GB3096-2008 Environmental quality standard for noise, but that of Baisha Village, the affiliated medical school of Liuzhou Medical University, and Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps exceeds Class 2 standard of GB3096-2008 Environmental quality standard for noise; in case of nighttime construction, in addition to Riverside Century Town, the four sensitive points exceed the standard, with the maximum value up to 24.8 dB (A). It was understood that the construction of WWTPs is arranged only in the daytime, so there is no construction noise at night. During the construction process, the project’s construction equipment should be arranged at a position away from the southern plant boundary, a playground is mainly situated on one side of the construction site of the project near the affiliated medical school of Liuzhou Medical University, and the construction site close to one side of the affiliated medical school of Liuzhou Medical University is mainly for the blower room and sludge thickening and dehydration machine room; the construction quantity of these two buildings is small, and they can be under concentrated construction within a short term, for instance they are arranged in the winter and summer and other legal holidays; after reasonable arrangements for the construction time, the project’s construction noise has little effect on the affiliated medical school of Liuzhou Medical University. The main construction building near Baisha Village is a sludge thickening and dehydration machine room, and the construction quantity of this building is small, with a total construction time of no more than two weeks; by the layout of construction equipment north of the sludge thickening and dehydration machine room site, after construction is prohibited at noon and night time, the project’s construction noise has little effect on Baisha Village. The main buildings close to Lvshui Yunjian Community are secondary sedimentation tank and bachelor quarters and garage, which construction quantity is large, so the Employer should arrange the construction time reasonably, but construction is prohibited during midday and evening breaks. Therefore, after reasonable arrangements for construction time and reasonable layout of the positions of construction

49 LZEMP II - Restructured Project equipment, the project’s construction noise has a small impact on the surrounding sensitive points. 4.1.4 Environmental impact analysis of solid wastes during construction period Solid wastes generated during the construction period of the project mainly are construction waste generated during construction and domestic garbage from construction workers. (1) Construction waste The generation of construction waste from the project is shown in Table 4.9. Table 4.9 Generation of construction waste from the project Construction Earthwork balance (10000 m3) Sub-project waste (t) Excavation Filling Abandon Borrow Baisha WWTP II 5000 5.8 5.7 0.1 0 Longquanshan WWTP Ⅲ 7000 3 14.3 0 11.3 Spoil and construction waste generated during the period of project construction are basically processed in accordance with relevant of the Regulations for Liuzhou urban construction waste. Construction unit according to relevant of the Regulations for Liuzhou urban construction waste should go to the city appearance and environmental sanitation administrative department for appropriate procedures, before dumping and transporting and stacking construction waste to a designated location, which can not be discarded or stacked at will; a plan for disposal and transportation of construction waste is prepared to avoid transporting in the peak; when vehicles transport construction waste and garbage, they must be wrapped and covered, and spilling along the road is not allowed; transport vehicles must run along the specified routes within the specified time. Construction waste should be carried by the unit which obtains a construction waste transport permit according to law. According to the information provided by Employer, a temporary disposal site for spoil is not located within the construction site of the project, and spoil is in good time carried away by the commissioned qualified transportation unit. Spoil and construction waste generated from the project during construction are processed in accordance with relevant provisions of the Regulations for Liuzhou urban construction waste, and then it has little effect on the surrounding environment. Longquanshan WWTP III is not provided with a borrow area, and the missing volume of soil is allocated through the construction site within Liuzhou. (2) Domestic garbage Due to a long construction period of the project, the majority of construction workers can live in simple sample rooms at the site; about 50 persons live at the construction site for each sub-project during the construction period; if domestic garbage is generated by 0.7kg/person per day, about 35kg domestic garbage is generated from each construction site per day, and a total of about 15.9t domestic garbage is generated throughout the construction period for each sub-project. Garbage is collected into construction waste pools in the site, and then is commissioned to be unified and processed by the sanitation department, which has little effect on the environment. In addition, some of packing bags, boxes, broken pieces of wood, etc., generated from the

50 LZEMP II - Restructured Project construction process should be classified and stacked, and some that can be reused are made full use, while the others can be incorporated into domestic garbage, which is unified and treated by the sanitation department in a timely manner to avoid "dirty, chaotic and poor" phenomena. 4.1.5 Impact analysis of soil erosion Soil erosion in the construction process of the project is mainly caused by ground surface disturbance and vegetation damage in the processes of three supplies and one leveling, digging and filling, and soil erosion is mainly based on water erosion. Rains encountered during construction will cause a certain degree of soil erosion, and if rainwater enters water bodies, it will cause water turbidity of rivers, thus affecting water quality, so soil conservation measures must be taken during the construction process, scientific organization of construction processes and construction time is made, large excavation during the rainy season is avoided, drainage ditches around the construction site are improved, spoil is timely removed and carried away, and timely vegetation recovery or greening of bare ground surface is done to reduce runoff erosion, so that the soil erosion generated during the project construction can be reduced to a minimum. 4.1.6 Impact analysis on the ecological environment during construction The project’s construction sites are relatively concentrated, with little impact on the surrounding areas, and the range involves mainly in sites and surrounding areas; in the construction process, the impact on the surrounding ecological environment is mainly involved in the following aspects: ① the vegetation at the original location of the project site mainly includes weeds and artificially planted shrubs. After construction, weeds will all be eradicated, and the quantity of weeds within the project area is a very small amount relative to the regional biomass, so the impact of weed eradication has a very small on regional ecology. Upon completion of the project, the plant area will be afforested with trees, shrubs and turf, while increasing regional biodiversity, in order to greatly improve the quality of ecological environment in the project area. ② No rare animals and plants being protected exist within the scope of the project, and existing organisms mainly include insects, ants, rats and weeds and so on. With the implementation of the project, the weeds within the project area will be destroyed, and animals (mainly including insects, ants, mice, etc.) will be forced to migrate to the surrounding areas, so the animals within the project area will reduce, while the animals inside the peripheral area will increase and the weeds to be destroyed are regional widespread species, so the project construction has little impact on the regional animals and plants. Overall, the impact of the construction phases of the project on the ecological environment is temporary and partial. 4.1.7 Impact analysis on urban landscape during construction The impact in the construction process of the project on the surrounding urban landscape is mainly manifested in the following aspects: ①some temporary buildings or the machinery and equipment parked in chaos during the

51 LZEMP II - Restructured Project construction process will bring disharmonic factors and influence to the surrounding landscape. ② gravel, mud and construction waste piled at the construction areas, especially dirt generated or scattered from transport vehicles access to the site enable the roads around the construction sites to be dusty, resulting in an adverse impact on the urban landscape. The negative impact during the construction period is temporary, partial and reversible. According to the investigation into construction sites in the urban areas, as long as construction teams strengthen construction management, and adopt effective pollution control measures, such as building construction site fences, controlling the loading volume of transport vehicles, and timely cleaning vehicles access to the construction sites and sweeping scattered dirt, if and whenever they do a good job in civilized construction, the negative impacts from construction can be minimized. 4.2 Environmental Impact Analysis during operation The impact of tail water from the WWTP on the water environment and the impact of odor and sludge on the surrounding environment are dominant to the surrounding environment during the operational phases of the project. 4.2.1 Impact of project implementation on surface water environment 4.2.1.1 Impact of tail water discharge from the WWTPs on the water environment To analyze the impact of tail water discharge from the WWTPs on the water environment, according to the characteristics of the rivers with a permissible quantity of pollutants near the WWTPs, using the mathematical model recommended in HJ/T2.3-93 Guidelines for Environmental Impact Assessment (ground water environment), an environmental protection industry standard of the People's Republic of China, the impacts of tail water discharge up to the standards from such two WWTPs and of tail water untreated by a WWTP but discharged directly on the water environment were respectively predicted. Prediction results of water environmental impacts of Baisha WWTP II: When the influent and effluent water of Baisha WWTP meet the designed water quality, the concentration of effluent water is bigger than that of Baisha WWTP I under current actual operation, with a great impact on Liujiang River; it is predicted that when the influent and effluent water of Baisha WWTP meet the designed water quality: ① under normal operating conditions of the project, after wastewater is treated and discharged upon meeting the standard, the concentration of water quality of reduced section after superimposing the background concentration of river meets the standard, indicating that wastewater treatment in the project is under normal operation, and the wastewater is discharged in line with the standards from Baisha WWTP, with little impact on the water quality of the river being evaluated.②When Baisha WWTP II fails, wastewater is not treated but is directly discharged, the concentration of effluent water from wastewater pollutants is high, and it can cause excessive concentration of water in the river being evaluated after it is discharged into Liujiang River, with great impact on the quality of water in the

52 LZEMP II - Restructured Project

downstream river being evaluated; the largest concentrations of NH3-N and CODcr in the water 3km at the downstream section were 1.72mg/L and 20.89mg/L, exceeding Class Ⅲ standard of GB3838-2002 Environmental quality standard for surface water. ③ In the heavy rain season, the flow rate and velocity of Liujiang River increase significantly, while the influent concentration of pollutants into Baisha WWTP also declines dramatically, and the overflow will not bring obvious impact to Liujiang river water after ensuring that rainwater in the early rains can enter the WWTP for treatment. No intake point of drinking water exists within the evaluation range of about 15km long Liujiang River from the upstream reaches 1km at the Liujiang River estuary where the project’s tail water flows to the downstream reaches 14km, which does not belong to the protected area for drinking water source; the protected area for drinking water source in Liujiang River in Liuzhou is located at the upstream river of Hudong Bridge, about 4km at the upstream reaches of the project’s tail water discharge outlet, so the project’s tail water discharge has little effect on the protected area for drinking water source in Liujiang River in Liuzhou. Prediction results of water environmental impacts of Longquanshan WWTP Ⅲ: When the influent and effluent water of Longquanshan WWTP meet the designed water quality, the concentration of effluent water is bigger than that of Longquanshan WWTP I and II under current actual operation, with a great impact on Liujiang River; it is predicted that when the influent and effluent water of Longquanshan WWTP meet the designed water quality: ① under normal operating conditions of the project, after wastewater is treated and discharged upon meeting the standard, the concentration of NH3-N and CODcr in the water of the river section 4km at the downstream reaches of the tail water discharge outlet, after superimposing the background concentration of river, meets the standard, indicating that wastewater treatment in the project is under normal operation, and the wastewater is discharged in line with the standards from Longquanshan WWTP, with little impact on the water quality of the river being evaluated.②When Longquanshan WWTP II fails, wastewater is not treated but is directly discharged, the concentration of effluent water from wastewater pollutants is high, and it can cause excessive concentration of water in the river being evaluated after it is discharged into Liujiang River, accompanied with a long pollution zone. ③ In the heavy rain season, the flow rate and velocity of Liujiang River increase significantly, while the influent concentration of pollutants into Longquanshan WWTP also declines dramatically, and the overflow will not bring obvious impact to Liujiang river water after ensuring that rainwater in the early rains can enter the WWTP for treatment. No intake point of drinking water exists within the evaluation range of about 15km long Liujiang River from the upstream reaches 1km at the Liujiang River estuary where the project’s tail water flows to the downstream reaches 14km, which does not belong to the protected area for drinking water source; the protected area for drinking water source in Liujiang River in Liuzhou is located at

53 LZEMP II - Restructured Project the upstream river of Hudong Bridge, about 9km at the upstream reaches of the project’s tail water discharge outlet, so the project’s tail water discharge has little effect on the protected area for drinking water source in Liujiang River in Liuzhou. 4.2.1.2 Cumulative impact The Municipal WWTP is a social welfare undertaking. After the project is completed, it will greatly reduce the amount of pollutants discharged into Liujiang River, and help improve and maintain good water quality of Liujiang River. After running this project, pollutant reductions are shown in Table 4.10. Table 4.10 Pollutant reductions after completion of the project Pollutants Reduction before the Reduction by Reduction after the project project completion (t/a) the project (t/a) completion (t/a) CODCr 30660 15768 46428 BOD5 12775 6570 19345 NH3-N 2171.8 1116.9 3288.7 SS 17885 9198 27083 TP 337.6 178.9 516.5 Seen from Table 4.11, before the project is completed, after wastewater is processed by Baisha WWTP and Longquanshan WWTP, the reduction of COD into Liujiang River is 30660t/A, BOD reduction is 12775t/A, ammonia reduction is 2171.8t/A, SS reduction is 17885t/A and TP reduction is 337.6t/a. Upon the completion of the project, after wastewater is processed by Baisha WWTP and Longquanshan WWTP, the reduction of COD into Liujiang River is 46428t/A, BOD reduction is 19345t/A, ammonia reduction is 3288.7t/A,SS reduction is 27083t/A, TP reduction is 516.5t/a, and therefore, the running Baisha WWTP and Longquanshan WWTP are very significant for the reductions of pollutants into Liujiang River, which has a positive effect on improving the status of local surface water environment. Thus, the project construction will achieve significant positive environmental benefits. 4.2.2 Impact of the project implementation on the groundwater environment The project aims for the construction of WWTPs. Various wastewater treatment structures are of concrete structure, and have very strong anti-leakage performance, so the wastewater in various structures leaking into the groundwater is unlikely. Longquanshan WWTP has been in operation for many years; according to the monitoring data of groundwater inside Longquanshan WWTP in 2014, the monitoring factors are pH value, permanganate index, nitrates, volatile phenol, ammonia nitrogen, total coliforms, total bacteria count, cadmium, lead, zinc, chromium (VI), arsenic and mercury; each monitoring factor during monitoring could reach Class Ⅲ water quality standard of GB/T14848-93 Groundwater Quality Standard. The project in the operation period has little effect on the groundwater environment. 4.2.3 Impact of the project implementation on the atmospheric environment To analyze the impact of the atmospheric pollutants being discharged from the WWTPs during operation on the atmospheric environment, according to the weather characteristics of Liuzhou city, using the mathematical model recommended in HJ/T2.2-2008 Guidelines for Environmental

54 LZEMP II - Restructured Project

Impact Assessment (atmospheric environment), an environmental protection industry standard of the People's Republic of China, the impacts on the atmospheric environment were predicted. 4.2.2.1 Impact of Baisha WWTP II on the atmospheric environment (1) Strong pollution sources Odor is generated during the project operation. Odor is mainly from coarse grid and water pumping house, fine grid and aerated grit chamber, biological pool, sludge pumping house and sludge thickening tank, and odor belongs to fugitive emission. Its main components are H2S and

NH3, as well as methyl mercaptan, methyl sulfide, methyl disulfide, trimethylamine, styrene acetaldehyde and other substances. Odor intensity varies with seasonal temperature changes, that is, odor is strong in high summer temperatures, and it is weak in low winter temperatures.

H2S and NH3 are used in the Environmental Impact Assessment as characteristic odor pollutants in the proposed project to evaluate the environmental impact of odor from the WWTPs, and the intensity of odor sources is identified by analogy method. The generation and emission of odor pollutants are associated with management level of WWTPs, influent water quality of WWTPs, treatment processes of WWTPs and surface area of wastewater treatment structures, and have an incompletely proportional relationship with the treatment scale of WWTPs. Through comprehensive data analysis of Tianjin Jizhuangzi WWTP, Hangzhou Sibao WWTP, Shenzhen Baoan Gushu WWTP I, Liuzhou Baisha WWTP I and Longquanshan WWTP I and II, the intensity of sources generating odor substances in the project is determined, with reference to Table 4.11. The project’s coarse grid and water pumping house, and sludge thickening and dehydration machine room rely on the existing first-phase structures, so the intensity of emission sources from odor pollutants in coarse grid and water pumping house will not be repeatedly estimated. Table 4.11 List of strong odor sources from Baisha WWTP II

H2S NH3 Size Source point kg/h kg/h L(m) ×W(m) ×H(m) Phase-2 fine grid and aerated grit 0.0013 0.0068 34.9×10.9×3.4 chamber Phase-2 biological 0.0178 0.0960 112×58×1.8 pool Phase-2 water and sludge well (sludge 0.0006 0.0029 12.7×12.7×1.8 pumping house) Phase-2 sludge 0.0034 0.0184 36×18×11.7 thickening tank Total 0.0231 0.1241 —— Before and after implementation of Baisha WWTP II, emission loads of H2S and NH3 see Table 4.12.

Table 4.12 H2S and NH3 emissions before and after implementation of Baisha WWTP II Reductions in After renovation and Name of Phase I PhaseⅡ the old driven by restructuring of Baisha Variation pollutant project project the new WWTP

55 LZEMP II - Restructured Project

NH3(t/a) 1.14 1.09 0 2.23 +1.09 H2S(t/a) 0.26 0.20 0 0.46 +0.20 (2) Prediction results of environmental impact

After the evaluated project is completed, the contribution values of hourly concentration of H2S to each sensitive point are within the range of 0.0004mg/m3 (Riverside Century Town) ~ 0.0058mg/m3 (Baisha Village), and the contribution values account for 4.0 to 58.0% of the standard values, respectively; the contribution values of hourly concentration after superposing the background value are within the range of 0.0028mg/m3 (Bili Xingcheng) ~ 0.0088mg/m3 (Baisha Village), and the superimposed values account for 28.0 ~ 88.0% of the standard values, respectively; the contribution values of hourly concentration of NH3 to each sensitive point are within the range of 0.0019mg/m3 (Riverside Century Town) ~ 0.0311mg/m3 (Baisha Village), and the contribution values account for 0.95 to 15.55% of the standard values respectively; the contribution values of hourly concentration after superposing the background value are within the range of 0.0372mg/m3 (Bili Xingcheng) ~ 0.0741mg/m3 (Baisha Village), and the superimposed values account for 18.6 ~ 37.1% of the standard values, respectively. So, the contribution values of hourly concentration of H2S and NH3 to all sensitive points and their superimposed values can reach the maximum allowable concentration of harmful substances in the air of residential areas set out in TJ36-79 Sanitary standard for the design of industrial enterprise. (3) Protective distance A: protective distance of the atmospheric environment The project’s pollution sources are of fugitive emissions. The mode of atmospheric protective distance recommended by HJ2.2-2008 is used, and after calculation, the atmospheric protective distance of fugitive emission sources in Baisha WWTP II is shown in Table 4.13. Table 4.13 Atmospheric protective distance of fugitive emission sources in Baisha WWTP II No. Fugitive Name of Protective distance emission sources pollutant 1 H2S No exceeding point, with no need to set Phase-2 fine grid atmospheric protective distance and aerated grit chamber NH3 No exceeding point, with no need to set atmospheric protective distance 2 H2S Maximum exceeding distance为90m，建 Phase-2 biological 议protective distance100m treatment pool NH3 No exceeding point, with no need to set atmospheric protective distance 3 H2S No exceeding point, with no need to set Phase-2 water and sludge atmospheric protective distance well (sludge pumping house) NH3 No exceeding point, with no need to set atmospheric protective distance 4 H2S No exceeding point, with no need to set Phase-2 sludge t atmospheric protective distance hickening tank NH3 No exceeding point, with no need to set atmospheric protective distance From the above table, there is not a need to set atmospheric protective distance for other structures in Baisha WWTP II in addition to the biological pool, and the atmospheric protective

56 LZEMP II - Restructured Project distance of the biological pool is 100m. According to the project’s general layout and surrounding environment profile, the land for Baisha WWTP is within the range 100m west and south of the biological pool in the project, the range 100m north of the biological pool is the land for Baisha WWTP and for municipal roads and enterprises, and Baisha embankment and Liujiang River are 100m east of it, so the project’s atmospheric protective distance is 100m outside the boundary of Baisha WWTP at the east part of the biological pool’s structures, and 80m outside the boundary of Baisha WWTP at the north part of the biological pool’s structures. B: According to the provisions of JB (2001) No. 77 Construction standard for urban wastewater treatment projects, the distance from the residential areas outside the WWTP to the production facilities of the WWTP that produce odor is not less than 50-100m. Because there are a school and residential areas south of Baisha WWTP, and the school is relatively close to the plant, in order to protect sensitive populations, the distance between Baisha WWTP and the residential areas outside the plant is the bigger value under the provisions of JB (2001), No. 77 Construction standard for urban wastewater treatment projects, that is, the distance from the production facilities (coarse grid and water pumping house, fine grid and aerated grit chamber, sludge pumping house, sludge dehydration workshop, biological pool, etc.) that produce odor to the residential areas outside the plant should not be less than 100m. After the project is completed, the sensitive points around the 100m range of production facilities at Baisha WWTP that produce odor include the classrooms and dormitories, Affiliated Medical School of Guangxi University of Science and Technology, and Baisha Village. The surrounding settings of the production facilities at Baisha WWTP Ⅱthat produce odor are summarized as follows: the range 100m north of the biological pool is the land for Baisha WWTP and for municipal roads and enterprises, Baisha embankment and Liujiang River are 100m east of it, and the south land is for Baisha WWTP; the land range 100m north, west and south of the fine grid and aerated grit chamber is for Baisha WWTP, and the east land is used for Baisha WWTP, Baisha embankment and Liujiang River; the land range 100m north, east and west of the sludge thickening tank is for Baisha WWTP, and the southern 100m range is for Baisha WWTP, a stadium of the Affiliated Medical School of Guangxi University of Science and Technology, and classrooms and dormitories, the Affiliated Medical School of Guangxi University of Science and Technology; the land range 100m around the water and sludge wells (sludge pumping house) is for Baisha WWTP, planned roads and green space, so after the restructuring of Baisha WWTP, although the predicted values of H2S and NH3 at the sensitive points around reach the maximum allowable concentration of harmful substances in the air of residential areas set out in TJ36-79 Sanitary standard for the design of industrial enterprise, according to the general layout of Baisha WWTP and the surrounding profile, after the project is completed, the distance between the sludge thickening tank of Baisha WWTP II, the sludge dehydration workshop of I and the water pumping house of Inear the south boundary, and the southern residential area of Baisha Village, and classrooms and dormitories, the Affiliated Medical School of Guangxi University of Science and Technology is less than 100m, and the distance from 57 LZEMP II - Restructured Project the south of the WWTP to the sensitive points can not meet the requirements of 100m distance. Thus, in order to protect the atmospheric environment at the residential area of Baisha Village, and classrooms and dormitories, the Affiliated Medical School of Guangxi University of Science and Technology south of Baisha WWTP, the surrounding environment after restructuring of Baisha WWTP shall meet the requirements of (2001) No.77 Construction standard for urban wastewater treatment project. The Construction Unit plans to equip the supporting odor collection devices for the sludge thickening tank, sludge dehydration workshop, coarse grid and water pumping house near the southern boundary of Baisha WWTP. Odors will be collected and then processed and discharged through a biological deodorization tower. Biological deodorization method is a new technology developed in the 1950s, and it uses microbial degradation and conversion of smelly substances, of which the biological filtration deodorization method is currently the most studied and the most widely used with the most mature technologies. The main process includes three steps, namely water-soluble penetration, biological absorption and biological oxidation. The deodorization efficiency of the biological deodorization method is high, up to 85%, so after deodorization measures are installed at the sludge thickening tank, sludge dehydration workshop, coarse grid and water pumping house, odor emissions from the sludge thickening tank, sludge dehydration workshop, coarse grid and water pumping house will significantly decrease, and the distance from these three structures to the sensitive points outside the plant can be the small value as provided by (2001) No.77 Construction standard for urban wastewater treatment project, that is, the distance from the sludge thickening tank, sludge dehydration workshop, coarse grid and water pumping house to the residential areas outside the plant should be more than or equal to 50m. Currently, there are no environmental sensitive points, such as residential areas, school classrooms and dormitories within the 50m range around the sludge thickening tank, sludge dehydration workshop, coarse grid and water pumping house. Therefore, after the sludge thickening tank, sludge dehydration workshop, coarse grid and water pumping house are equipped with odor collection devices, the surrounding environment of Baisha WWTP would meet the requirements of (2001) No.77 Construction standard for urban wastewater treatment project and atmospheric protective distance. The specific circumstances of the project’s structures and plant boundaries, and surrounding environment are shown in Table 4.14.

58 LZEMP II - Restructured Project Table 4.14 Details of the project’s structures and plant boundaries, and surrounding environment Distance from buildings and structures to boundaries and situations(m) East boundary South boundary West boundary North boundary Protective Protective Distance Current case of Current case of Distance Current case of Distance Current case of Structures distance distance Distance of ex-plant ex-plant Distance of ex-plant Distance of ex-plant Distance of exceeding protective protective exceeding protective exceeding protective exceeding boundary distance/planning distance/planning boundary distance/planning boundary distance/planning boundary Open space and industrial enterprises, planned for Biological municipal 100 0 100 100 0 —— 330 0 —— 20 80 pool roads, municipal Baisha dike facilities and and Liujiang protected River green space Water Roads, open pumping 50 25 25 20 30 spaces and 400 0 —— 185 0 —— house the Stadium of Fine grid Guangxi and University of 100 14 86 70 30 420 0 —— 146 0 —— aerated grit Science and chamber Technology, Sludge the open dehydration 50 65 0 —— 20 30 spaces 340 0 —— 188 0 —— room planned for Sludge sanitation and thickening 50 130 0 —— 20 30 protected 290 0 —— 198 0 —— tank green space Sludge Open space, pumping 100 280 0 —— 150 0 —— 60 40 65 35 planned for house roads Project land Roads, open Open space and open spaces and and industrial space, the the Stadium of enterprises, open space Baisha dike Guangxi planned for Whole planned for —— — 100 and Liujiang — 30 University of — 0 — 80 municipal plant roads and River Science and roads, green area Technology, municipal the open facilities and spaces protected

59 LZEMP II - Restructured Project planned for green space sanitation and protected green space

60 LZEMP II - Restructured Project

In summary, by combination of the general layout of Baisha WWTP, after Baisha WWTP II is completed by taking measures, there should not be Environmentally Sensitive Points in the following range of Baisha WWTP: 30m range outside the south boundary, 100m range outside the east boundary, 80m range outside the north boundary and 0m range outside the west boundary. Currently, there are no residential buildings, school classrooms and dormitories, hospitals and other Environmentally Sensitive Points in 30m range outside the south boundary of Baisha WWTP, 100m range outside the east boundary and 80m range outside the north boundary. According to the controlled detailed planning for Baisha area in Liuzhou and the controlled detailed planning for southern Xianglan in Liuzhou, the land for roads, education and scientific research and design (Affiliated Medical School of Guangxi University of Science and Technology), sanitation facilities, and green area for environmental protection is in 30m range outside the south boundary of Baisha WWTP; the planned roads, green area for environmental protection for the WWTP, and municipal facilities construction land are in 80m range outside the north boundary of Baisha WWTP; Baisha embankment and Liujiang River are in the range of 100m protective distance outside the east boundary. Therefore, after the project is completed, the surrounding environment of Baisha WWTP meets the atmospheric protective distance and the requirements set out in JB (2001) 77 Construction standard for urban wastewater treatment projects with regard to the distance from the WWTP to the residential area outside the plant by taking measures. New residential buildings, school classrooms and dormitories, hospitals and other sensitive buildings should not be built on the land for education and research and design (Affiliated Medical School of Guangxi University of Science and Technology) within 30m range outside the south boundary of Baisha WWTP, in order to avoid the impact of odor from the project on such sensitive points. 4.2.2.2 Impact of Longquanshan WWTP IIIon the atmospheric environment (1) strong pollution sources Odor is generated during the project operation. Odor is mainly from coarse grid and water pumping house, fine grid and aerated grit chamber, biological pool, sludge pumping house and sludge thickening and dehydration machine room, and odor belongs to fugitive emission. Its main components are H2S and NH3, as well as methyl mercaptan, methyl sulfide, methyl disulfide, trimethylamine, styrene acetaldehyde and other substances. Odor intensity varies with seasonal temperature changes, that is, odor is strong in high summer temperatures, and it is weak in low winter temperatures.

H2S and NH3 are used in the Environmental Impact Assessment as characteristic odor pollutants in the proposed project to evaluate the environmental impact of odor from the WWTPs, and the intensity of odor sources is identified by analogy method. The generation and emission of odor pollutants are associated with management level of WWTPs, influent water quality of WWTPs, treatment processes of WWTPs and surface area of wastewater treatment structures, and have an incompletely proportional relationship with the treatment scale of WWTPs. Through

61 LZEMP II - Restructured Project comprehensive data analysis of Tianjin Jizhuangzi WWTP, Hangzhou Sibao WWTP, Shenzhen Baoan Gushu WWTP I, Liuzhou Baisha WWTP I and Longquanshan WWTP I and II, the intensity of sources generating odor substances in the project is determined, with reference to Table 4.15. The project’s coarse grid and water pumping house, and sludge thickening and dehydration machine room rely on the existing first-phase and second-phase structures, so the intensity of emission sources from odor pollutants in coarse grid and water pumping house, and sludge thickening and dehydration machine room will not be repeatedly estimated. Table 4.15 List of strong odor sources from Longquanshan WWTP Ⅲ H S NH Size Source 2 3 kg/h kg/h L(m) ×W(m) ×H(m) Fine grid and aerated 0.0013 0.0068 34.9×10.9×3.4 grit chamber Biological pool 0.0205 0.1107 113.12×66.22×2.5 Sludge pumping house 0.0008 0.0041 33.27×6.85×5.65 Total 0.0226 0.1216 —— (2) Prediction results of environmental impact

After the evaluated project is completed, the contribution values of hourly concentration of H2S to each sensitive point are within the range of 0.0005mg/m3 (Hongtai Mingting) ~ 0.0057mg/m3 (Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps), and the contribution values account for 5 to 57% of the standard values, respectively; the contribution values of hourly concentration after superposing the background value are within the range of 0.0035mg/m3 (Hongtai Mingting) ~ 0.0087mg/m3 (Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps), and the predicted values account for 35~ 87% of the standard values, respectively. So, the contribution values and predicted values of hourly concentration of H2S to all sensitive points and their superimposed values can reach the maximum allowable concentration of harmful substances in the air of residential areas set out in TJ36-79 Sanitary standard for the design of industrial enterprise. However, the predicted value of Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps close to the project is close to the standard value.

After the evaluated project is completed, the contribution values of hourly concentration of NH3 to each sensitive point are within the range of 0.0027mg/m3 (Hongtai Mingting) ~ 0.0308mg/m3 (Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps), and the contribution values account for 1.35 to 15.4% of the standard values, respectively; the contribution values of hourly concentration after superposing the background value are within the range of 0.0515mg/m3 (Hongtai Mingting) ~ 0.1028mg/m3 (Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps), and the predicted values account for 21.2~ 51.4% of the standard values, respectively. So, the contribution values and predicted values of hourly concentration of NH3 to all sensitive points and their superimposed values can reach the maximum allowable concentration of harmful substances in the air of residential areas set out in TJ36-79 Sanitary standard for the design of industrial enterprise.

62 LZEMP II - Restructured Project

(3) Protective distance A: atmospheric protective distance The project’s pollution sources are of fugitive emissions. The mode of atmospheric protective distance recommended by HJ2.2-2008 is used, and after calculation, the maximum exceeding distance of fugitive emission sources in Longquanshan WWTP III is shown in Table 4.16. Table 4.16 List of excessive distance of fugitive emission sources from Longquanshan WWTP III No. Fugitive emission Name of Maximum exceeding distance source pollutant 1 H2S No exceeding point, with no need to set Fine grid and aerated protective distance ce grit chamber NH3 No exceeding point, with no need to set protective distance 2 H2S Maximum exceeding distance is 100m Biological pool NH3 No exceeding point, with no need to set protective distance 3 H2S No exceeding point, with no need to set protective distance Sludge pumping house NH3 No exceeding point, with no need to set protective distance From the above table, the maximum exceeding distance of Longquanshan WWTP III is 100m, and H2S pollutant is generated from the biological pool. The land for Longquanshan WWTP is within the range 100m north and south of and 20m (Jiutou Mountain beyond 20m range) west and 80m (embankment roads beyond 80 range) east of the biological pool in the project, so the project’s atmospheric protective distance is in 80m range outside the boundary of Longquanshan WWTP at the west part of the biological pool’s structures, and 20m range outside the boundary of Longquanshan WWTP at the east part of the biological pool’s structures. B: According to the provisions of JB (2001) No. 77 Construction standard for urban wastewater treatment projects, the distance from the residential areas outside the WWTP to the production facilities of the WWTP that produce odor is not less than 50-100m. In order to protect sensitive populations, the distance between Longquanshan WWTP and the residential areas outside the plant is the bigger value under the provisions of JB (2001), No. 77 Construction standard for urban wastewater treatment projects, that is, the distance from the production facilities (coarse grid and water pumping house, fine grid and aerated grit chamber, sludge pumping house, sludge dehydration workshop, biological pool, etc.) that produce odor to the residential areas outside the plant should not be less than 100m. After the project is completed, now, there are no sensitive points around the 100m range of production facilities at Longquanshan Sewage Treatment I and IIthat produce odor. The surrounding settings of the production facilities at Baisha WWTP III that produce odor are summarized as follows: the range 100m south and north of the biological pool is the land for Longquanshan WWTP and for other wastewater treatment facilities and green space, mountains are within 100m range of its west; within the east 100m range, there are mainly the land for Longquanshan WWTP, and a scope of cold water washing

63 LZEMP II - Restructured Project land, but there are no residential buildings and other sensitive points.a greening zone of Longquanshan WWTP is within 100m range around the fine grid and aerated grit chamber. Within 100m range of the sludge pumping house, there are open spaces for Longquanshan WWTP, green areas for environmental protection and Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps. The Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps is a temporary placement building, only with 4 staffs. Thus, there are no long-term residential buildings, school classrooms and dormitories, hospitals and other sensative buildings within the range of protective distance of Longquanshan WWTP III. The specific circumstances of the project’s structures and plant boundaries, and surrounding environment are shown in Table 4.17.

64 LZEMP II - Restructured Project

Table 4.17 Details of the project’s structures and plant boundaries, and surrounding environment Distance from buildings and structures to boundaries and situations(m) East boundary South boundary West boundary North boundary Protectiv Distance e Distance Distance protecti Current case Current case Current case Current case Structure of distance of of ve Distanc of ex-plant of ex-plant Distanc of ex-plant Distanc of ex-plant s exceedi Distanc of exceedi exceedi distance e protective protective e protective e protective ng e exceedi ng ng distance/planni distance/planni distance/planni distance/planni boundar ng boundar boundar ng ng ng ng y boundar y y y Riverbanks Biological 100 80 20 and Liujiang 110 0 —— 20 80 Longquanshan 375 0 —— pool River Enterprises and open Water spaces, pumping 100 300 0 —— 450 0 —— 40 60 110 0 —— planned for house roads and green area Enterprises Fine grid and open and spaces, aerated 100 270 0 —— 290 0 —— 30 70 240 0 —— planned for grit roads and chamber green area Sludge Riverbanks dehydrati 100 40 60 and Liujiang 310 0 —— 250 0 —— 150 0 —— on room River Open space and Qiaodi Branch Third Brigade, Liuzhou Social Sludge Riverbanks Security Patrol pumping 100 60 40 and Liujiang 70 30 and 140 0 —— 470 0 —— house River Prevention Corps are temporary placement buildings,plann ed for

65 LZEMP II - Restructured Project

protected green space Open space and Qiaodi Branch Third Brigade, Liuzhou Social Longquanshan Jiutoushan Security Patrol ; Enterprises road, Jiutou Riverbanks and and open mountain and Whole —— — 90 and Liujiang - 30 Prevention - 80 spaces, - 90 open spaces, plant River Corps are planned for the open temporary roads and space planned placement green area for warehouse buildings,plann ed for protected green space

66 LZEMP II - Restructured Project

In summary, by combination of the general layout of Longquanshan WWTP, after Longquanshan WWTP III is built, there should not be Environmentally Sensitive Points within the following range of Longquanshan WWTP: 90m range outside the north boundary, 90m range outside the East boundary, 30m range outside the southern boundary and 80m range outside the west boundary. Currently, only Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps within the above ranges is temporary placement buildings. According to the controlled detailed planning for East Liaoyuanlu Area in Liuzhou, the Approval of the adjustment program for land block of Tianyi company under the controlled detailed planning for East Liaoyuanlu Area in Liuzhou and the controlled detailed planning for West Yangheqiao Area in Liuzhou, Jiutoushan road, woodland (Jiutou mountain) and storage space are in 90m range outside the north boundary of Longquanshan WWTP; embankment roads, green land and Liujiang River are in 90m outside the East boundary; green land and second-class industrial land (Liuzhou Machinery Factory) are in 30m range outside the southern boundary; second-class industrial land and Longquan Mountain are in 80m range outside the southwest boundary; there is no sensitive point at the northwest space, and a green area for environmental protection for the WWTP, municipal facilities construction site, planned roads and green spaces are in 80m range outside the northwest boundary; the distance from the residential land provided in the Approval of land adjustment program of Tianyi company to the green area for environmental protection west of Longquanshan WWTP is 100m and to the structures of Longquanshan WWTP that produce odor is bigger than 100m, so, according to the plan, there are no environmental sensitive points within 100m range of the surrounding structures of Longquanshan WWTP that produce odor, and the ambient environment meets the atmospheric protective distance and the requirements of JB (2001) No.77 Construction standard for urban wastewater treatment projects with regard to the distance from the WWTP to the residential area outside the plant. 4.2.4 Impact of the project implementation on the acoustic environment (1) Noise source strength of WWTP The main noise sources of the project are from the submersible wastewater pumps, blowers, suction dredgers and other machinery and equipment, and the noise source intensity ranges from 65 to 90dB (A). (2) Prediction Analysis on Acoustic environmental Impact Prediction is carried out by using the industrial noise prediction model in HJ2.4-2009 Guidelines for Environmental Impact Assessment - acoustic environment. ① Baisha WWTP II The contribution values of noise from the equipment of Baisha WWTP II to the boundary and the predicted values to the sensitive points are shown in Table 4.18 and Table 4.19. Table 4.18 List of contribution values of noise from project equipment to the boundary of Baisha WWTP

67 LZEMP II - Restructured Project

contribution value Standard value Exceeding Boundary point Time dB(A) dB(A) dB(A)

1＃ North Day 34.04 60 － boundary Night 34.04 50 － 2＃ East Day 40 60 － boundary Night 40 50 － 3＃South by east Day 33.45 60 － boundary Night 33.4 50 － 4＃South by Day 21.33 60 － west boundary Night 21.33 50 －

5 ＃ West Day 41.92 60 － boundary Night 41.92 50 － Table 4.19 List of predicted values of noise from project equipment to sensitive points Unit: dB(A) Day Night Sensitive Curre contri Predic Stand Excee contri Predic Stand Exce point of the Added Curren Added nt bution ted ard ding bution ted ard eding project value t value value value value value value value value value value value Baisha 50.8 28.72 50.83 0.03 － 42.1 28.72 42.29 0.19 － Village Affiliated 60 Medical 50.8 28.77 50.83 0.03 － 42.1 28.77 42.3 0.2 － School of 50 GuangxiLvshui 50.4 22.87 50.41 0.01 － 41.6 22.87 42.65 1.05 － UniversityYunjian of Riverside ScienceCommunity and 49.4 20.91 49.41 0.01 － 40.6 20.91 40.65 0.05 － Century Town Technology Note: the current value above is the monitoring value of January 2, 2014, and the status data of Baisha Village are the monitoring data of the affiliated college of Guangxi Medical University. Note: The above status quo value using 2 January 2014 to monitor the value, Baisha Village status quo data monitoring data affiliated with Guangxi Medical University medical school. Table 4.18 shows that after the project is completed, after mechanical noise resulting from the running equipment at Baisha WWTP is insulated by the engine room wall and attenuated by distance, the contribution value and predicted value at boundary during the day and night reach Class 2 standard of GB 12348 -2008 Emission standard for industrial enterprises noise at boundary, and the added value is not obvious; the added value of noise at the sensitive points Baisha Village, Affiliated Medical School of Guangxi University of Science and Technology, Lvshui Yunjian Community and Riverside Century Town is small, and the predicted values during the day and night are up to Class 2 standard for acoustic environment functional area in GB 12348-2008 Emission standard for industrial enterprises noise at the front boundary. Table 4.19 shows that after the project is completed, after the added value of mechanical noise resulting from the running equipment of Baisha WWTP at the sensitive points Baisha Village, Affiliated Medical School of Guangxi University of Science and Technology, Lvshui Yunjian

68 LZEMP II - Restructured Project

Community and Riverside Century Town is small, and the predicted values during the day and night are up to Class 2 standard for acoustic environment functional area in GB 12348-2008 Emission standard for industrial enterprises noise at the front boundary. ②Longquanshan WWTP Ⅲ The contribution values of noise from the equipment of Longquanshan WWTP III to the boundary and the predicted values to the sensitive points are shown in Table 4.20 and Table 4.21. Table 4.20 List of contribution values of noise from project equipment to the boundary of Longquanshan WWTP

Contribution value Standard value Exceeding Boundary point Time dB(A) dB(A) dB(A)

1＃ North Day 26.85 70 － boundary Night 26.85 55 － 2＃ Northeast Day 24.87 60 － boundary Night 24.87 50 － 3＃Southeast Day 27.91 60 － boundary Night 27.91 50 － 4＃South Day 37.29 60 － boundary Night 37.29 50 －

5 ＃ Southwest Day 29.98 60 － boundary Night 29.98 50 －

6 ＃ Northwest Day 39.33 60 － boundary Night 39.33 50 － Table 4.21 List of predicted values of noise from project equipment to sensitive points Unit: dB(A) Day Night Sensitive Curre contri Predic Stand Excee Curre contrib Predic Stand Exce Added Added point nt bution ted ard ding nt ution ted ard eding value value value value value value value value value value value value Qiaodi Branch Third Brigade, 46 36.91 46.51 0.51 60 － 42 39 43.17 1.17 50 － Liuzhou Social SecurityNote: The above present values are monitoring values of January 2, 2014. Patrol and TablePrevention 4.20 shows that after the project is completed, after mechanical noise resulting from the runningCorps equipment at Longquanshan WWTP is insulated by the engine room wall and attenuated by distance, the contribution value and predicted value at the north boundary during the day and night reach Class 4 standard of GB 12348 -2008 Emission standard for industrial enterprises noise at boundary, and the contribution value and predicted value of noise at other boundaries during the day and night are up to Class 2 standard of GB 12348-2008 Emission standard for industrial

69 LZEMP II - Restructured Project enterprises noise at the front boundary, so the added values are not obvious compared with those before the completion of the project. Table 4.21 shows that after mechanical noise resulting from the running equipment at Longquanshan WWTP is insulated by the engine room and workshop wall and is attenuated by distance, the added value is small, 1.17 dB (A) after it is superimposed to the background value of the sensitive point Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol and Prevention Corps. The predicted value of noise during the day and night is still up to Class 2 standard for acoustic environment functional area in GB3096-2008 Environmental quality standard for noise. 4.2.5 Analysis on Environmental Impact of solid wastes from the project The generation of solid wastes from the project is shown in Table 4.22. Table 4.22 Generation of solid wastes from the project Domestic Sub-project Grille slag Sand Sludge garbage Longquanshan 7.5m3/d(moisture 1.25m3/d(moisture 25 m3/d(moisture 10kg/d WWTP Ⅲ content 80%) content 80%) content 为 75%) 6m3/d(moisture 1m3/d(moisture 29m3/d(moisture Baisha WWTP II 10kg/d content 80%) content 80%) content 为 75%) Sludge is transported to the LZSDC for centralized processing, and grill slag, sludge and domestic garbage are uniformly cleaned up by the sanitation department. After grill slag, sludge and domestic garbage are uniformly cleaned up by the sanitation department, they has little effect on the surrounding environment. After the project is completed, the mercury and chromium and other hazardous wastes generated from the testing workshops at Baisha WWTP and Longquanshan WWTP are collected in accordance with relevant provisions of hazardous wastes, and then are stored temporarily in special collection barrels, which are labeled with warning labels and are placed at a specific area of the warehouse, and are completely isolated from other items; the warehouse is kept windproof, rainproof and prevent leakage. The mercury and chromium and other hazardous wastes are entrusted to be treated by the qualified unit. The collection, temporary storage and treatment of mercury and chromium and other hazardous wastes are in line with the requirements of GB18597-2001 Standard for Pollution Control on Hazardous Waste Storage and its modification list. Sludge Treatment Works of Liuzhou WWTP Project: In order to properly treat the sludge from the WWTPs, a cement co-combustion sludge project has been under joint construction of Liuzhou Sewage Treatment Co., Ltd., and Guangxi Yufeng Co., Ltd.. The treatment process is to collaboratively treat sludge from the WWTPs by use of cement production line rotary kilns of Guangxi Yufeng Co., Ltd., the designed treatment capacity is 500 m3/d, and hte designed treatment object is sludge from Liuzhou Longquanshan WWTP, Baisha WWTP, Guantang WWTP, and Yanghe WWTP. Currently, the project has been built and put into the commissioning phase, and the project is expected to be put into operation before 2016, so the project can rely on the sludge treatment works of Liuzhou WWTP to dispose of sludge generated

70 LZEMP II - Restructured Project by the project in a bio-safe manner, and the treated sludge has little effect on the surrounding environment. 4.2.6 Analysis on Ecological Environment Impact

After the completion of the WWTPs, the concentration and amount of CODCr, BOD5, SS, ammonia and other pollutants being regionally discharged into Liujiang River have been greatly reduced, which has a positive meaning for the protection of water quality and biodiversity of Liujiang River. 4.3 Analysis on Social Environmental Impact Liuzhou City is the industrial center in Guangxi Autonomous Region. Since the reform and opening up, with rapid economic and urban development in Liuzhou and increasing people's lives, the requirements for environmental protection are also increasingly high. In recent years the country has further increased the intensity of environmental governance, and the discharge requirements of urban wastewater have become more stringent. Back in February 2005, Liuzhou Municipal Party Committee and Municipal Government proposed implementation of the "Bishui Lantian" project, launched comprehensively the prevention and control of water pollution, treated the water environment comprehensively as funded by the World Bank, and combined with the river regulation works, improved the wastewater collection pipe networks and built WWTPs. Therefore, the construction of the project continues the "Bishui Lantian" project which implementation was proposed by Liuzhou Municipal Party Committee and Municipal Government; it is able to improve the ecological environment of the city and surrounding areas, maintain the normal operation of basic functions of the city, and greatly promote the coordinated social, economic and environmental development. The new land to be acquired for restructuring of Baisha WWTP II is 23670m2, which is the collective land of Baisha Village and Huilongchong at present. Now the collective land of Baisha Village is a parking lot, which does not involve the demolition of residential buildings. Before the project occupies the land of Huilongchong, Huilongchong will be diverted, the diverted Huilongchong will be capped, and the land of the capped Huilongchong will be used for construction of municipal roads, so the construction of the project will not affect drainage function of Huilongchong; after receiving a reasonable compensation, the land acquisition for the project will have little effect on the villagers of Baisha Village. The new land to be acquired for restructuring of Longquanshan WWTP III is 54996m2, which is mainly the collective land of Jila village; the collective land of Jila village is used as vegetable land and easily built structures at present, and the structures are temporary housing for exotic vegetable farmers. Therefore, after receiving a reasonable compensation, the land acquisition for the project will have little effect on the villagers of Jila Village. 4.4 Environmental Risk Assessment 4.4.1 Environmental Risk Identification Through the analysis of the chosen wastewater treatment process for the WWTPs and the facilities built in the entire wastewater treatment system, major aspects involved in the risky

71 LZEMP II - Restructured Project pollution accidents of the WWTPs are reflected in the following areas. (1) due to power outages, equipment damage, wastewater treatment facilities not running properly, and parking maintenance and so on at the WWTPs cause untreated wastewater to be directly discharged into the rivers, leading to accident pollution. (2) activated sludge deterioration, sludge bulking or sludge disintegration and other abnormal conditions lead to the loss of sludge and lowering treatment effect, so that the effluent water can not meet the discharge standards. (3) the treatment structures are damaged as a result of earthquakes and other natural disasters, and wastewater overflows the plants and areas and waters near, resulting in serious local pollution. 4.4.2 Risk Accident Analysis There are a lot of factors leading to accidents for the WWTPs, and design, equipment, management and other factors could lead to the WWTPs not to work properly, but generally the likelihood of an accident of wastewater direct discharge is small and it is easy to handle and recover. (1) Electrical and mechanical failure After WWTPs are built and put into operation, once the mechanical facility or electrical failure, it can cause wastewater treatment facilities can not operate normally, and wastewater is discharged accidentally. Activated sludge in the wastewater treatment process is long-term cultivated and domesticated, and if long-term power outage, the activated sludge will be choked to death by hypoxia, leading to the process to be destroyed, but restoring the process of wastewater treatment and re-cultivating and domesticating activated sludge will take a long time. Dual power supply is designed for the WWTPs, so electric power supply is guaranteed. Advanced products are selected and used as machinery and equipment, with a high level of automation, so the chance of an accident caused by electric mechanical failure is very low. (2) shutdown maintenance of WWTPs Maintenance risks resulting during normal operation of maintaining the wastewater treatment system may bring about the system maintenance staff to health damage. Where a structure of the wastewater treatment system is in abnormal operation, it must be excluded immediately, when the operator is required to enter the borehole operations, but all kinds of toxic gases in the borehole would harm the operator. The WWTPs will train operators on safety, and provide them with gas masks and other safety supplies based on the actual situations, so as to minimize the risk. (3) sludge bulking and sludge disintegration Sludge bulking means extremely loose sludge structure, increasing volume, floating block, and difficult to settle and separate, which will affect the quality of effluent water. Sludge bulking will basically occur in all types of activated sludge processes, but it is difficult to control in the event of occurrence, and it will usually take a long time to adjust. The main signs of sludge bulking are

72 LZEMP II - Restructured Project loose structure, light mass, and poor precipitation compression performance; rising ratio of sludge settling, sometimes up to 90 percent and the sludge volume index up to 300 or more; loss of a lot of sludge, and turbid effluent water; secondary sedimentation difficult to achieve solid-liquid separation, and low-concentration reflux sludge, sometimes accompanied by the generation of large amount of foam, unable to maintain normal operation of biological treatment. Sludge bulking is classified into filamentous bulking and non-filamentous bulking, of which 90% is caused by filamentous bacteria, and only about 10% IS caused by non-filamentous bacteria. Organisms in the activated sludge systems are in dynamic equilibrium, ideal floc units have good precipitation performance, filamentous bacteria and zoogloea bacteria mutually compete and interdependent, and filamentous bacteria present in the floc benefit the protection of formed floc structure and can increase its strength. However, as induced by sludge bulking inducement, filamentous bacteria is dominated in the competition with zoogloea bacteria, and a large number of filamentous bacteria protrude floc units to undermine their stability. The engineering design with a high degree of automation aims for automatic monitoring of the concentration of toxic substances and sludge and other indicators in wastewater, and once it is abnormal, immediate remedial measures are taken to reduce the risk of sludge bulking or disintegration. 4.4.3 Environmental Risk Assessment Analysis on environmental impact of wastewater accidental discharge According to the surrounding profile of the WWTPs, when an accident occurs, untreated wastewater is directly discharged into Liujiang River, so that concentrations of COD and others in Liujiang River significantly increase, leading to quality deterioration of water in Liujiang River. 4.4.4 Accident prevention measures and countermeasures In case that accidents of the WWTPs are arisen from equipment failure, maintenance or poor treatment effect due to changes in process parameters, the prevention and control measures are as below: (1) WWTPs are provided with dual power supply, spare power supply is considered in the water pump design, and reliable performance and high quality products are used as mechanical equipment. (2) to enable the WWTPs under accidental conditions to quickly resume normal operation, a corresponding buffer capacity should be kept to the volume of major hydraulic structures, and the appropriate equipment should be spared, such as return pump, return pipe, valves and instrumentation. (3) high quality products with a low accident rate, easy for maintenance must be selected as various mechanical appliances, instruments and other equipment and devices for the WWTPs. One key equipment should be used while the other is for standby, there should be spare parts for the components easy to damage and they can be replaced in the event of an accident. (4) strengthening monitoring accident signs, making regular inspection, adjustment, maintenance

73 LZEMP II - Restructured Project and repair, timely detecting signs of abnormal operation that may cause accidents, and eliminate accident potentials. (5) strictly controlling the water quantity, water quality, residence time, load strength and other parameters of control process units to ensure the stability of the treatment effect; providing automatic analysis monitoring instruments of flow and water quality, and strengthening the maintenance and repair of machinery and equipment, so that the equipment is in the best condition. If irregularities are found, an action must be taken immediately. (6) enhancing training the WWTP staffs on theoretical knowledge and skills. (7) strengthen running management and monitoring of quality of influent and effluent water. 4.5 Cleaner Production 4.5.1 Resource Utilization WWTP Project belongs to environmental protection engineering and public utility engineering, the central task of the project is to target water pollution control, and millions of households will be protected and benefited. The resource utilization of WWTPs includes the occupation and development and utilization of resources. In terms of the use of land resources, land is a national non-renewable resource, and the construction of WWTPs needs for land. To make rational and efficient use of land, the site selection will strictly follow the viewpoints of urban planning by the administrative department of urban planning, the pre-approval views of the department of state land and resources on project land, and the Environmental Impact Assessment approval opinion of environmental protection department, in addition to meeting the requirements of overall urban planning and drainage engineering planning, and the requirements of less demolition, less occupation of fertile land, and being located in the dominant downwind direction of the city, etc. At the same time, on the basis of meeting the requirements of greening for the project construction and maintaining a certain health protective distance, the buildings and structures in the plant areas should follow the principle of compact layout, in order to save land. The land indexes of Baisha WWTP II and Longquanshan WWTP III are 0.37m2/m3·d, 0.65 m2/m3·d, respectively, far below the land index provided in the Construction standard for urban wastewater treatment projects (revision), and therefore, the land for the project is reasonable. In terms of the use of power resources, all of the electrical equipment in the plant areas are preferred efficient and energy-saving products, high quality and efficient submersible wastewater pumps equipped with variable frequency motor and so on are adopted. In the process of engineering design, new technologies are actively and steadily use, both focusing on advanced technologies and considering the maturity and usability of technologies, so that the project design is more reasonable, more saving and more optimized to maximize saving power consumption and lowering the operating costs of WWTPs. After sludge from the sludge treatment works is dewatered by centrifugal dehydration machine, the moisture content is below 80%; due to a long sludge age in the process of biological

74 LZEMP II - Restructured Project wastewater treatment, and stable sludge nature, the sludge reduction, stabilization and harmless treatment are basically realized. According to relevant measuring data, sludge contains a lot of heat, and the heat value is 1000 ~ 15000kJ/kg (dry mud). In addition, sludge is also rich in nitrogen, phosphorus and potassium, with high-efficiency organic fertilizer. Combined with the actual situation of the project, digestive treatment is required for the use of sludge heat, and a series of structures and equipment about digester, heating, mixing and biogas processing and use shall be increased, so the amount of investment and management complexity will increase, which is not only economically costly for small and medium sized WWTPs, and the processes are complicated and difficult from a technical point of view. A sludge disposal project of Liuzhou Municipal WWTP located in Yufeng Cement Plant has been put into trial operation, which transports sludge to the sludge disposal plant of Liuzhou Municipal WWTP for incineration to become cement clinker, so that the treated sludge is exploitable and changes “waste” into wealth, thus creating applied value of sludge, and achieving sludge resource. 4.5.2 Energy Saving Measures At present, though many domestic WWTPs have built perfect wastewater sludge treatment processes, they often can not insist on running, but only run or stop for some time, mainly because the energy consumption of such treatment plants is too high, that is, " building a treatment plant is affordable, but it can not afford using." Therefore, energy efficiency is very important. The energy saving is considered in the project in terms of process plan selection, equipment selection and operation and management to reduce operating costs. In the design process of the project, four new technologies are actively and steadily used, that is, focusing on advanced technologies, and also considering the maturity and practicality of technologies, so that the project design is more reasonable, more saving and more optimized, and the specific performance is manifested in the following aspects: ⑴ there are two wastewater treatment structures in the project, which can run independently. They can run in a single pool at a low concentration of influent water or with a small initial amount of wastewater to save energy. ⑵ using advanced technologies and sophisticated biological wastewater treatment processes. ⑶ using sludge thickening tank for sludge thickening, with low power consumption. ⑷ compact layout of structures reduces the loss of water heads at contact pipe drains. ⑸a microcomputer measuring and control management system with advanced technology is used in the whole plant for decentralized detection and control, and centralized display and management, so that the number of units of a variety of devices in operation or their run time can be automatically adjusted based on wastewater quality, flow rate and other parameters, which not only improves the internal management, but also enables the entire wastewater treatment system to operate in the most economical state, so as to achieve the lowest operating costs. 4.5.3 Energy consumption indicator and analysis Power consumption per ton of wastewater treated in the project is 0.22kw·h/m3, in line with the

75 LZEMP II - Restructured Project requirements of the Construction standard for urban wastewater treatment projects; therefore, from the point of view energy analysis, the total energy consumption indicator of the project is up to the advanced level of the domestic industry.

76 LZEMP II - Restructured Project

5 Analysis of alternative programs 5.1 Purposes and principles of comparison and selection analysis The purpose of the comparison and selection analysis on alternative programs is to optimize the project from an environmental point of view and minimize the impact on the environment through comparative analysis on several projects by the means or programs available. General principles for comparison and selection analysis on alternative programs: (1) quantifying comparison and selection: For each alternative program, the environmental impact of the project implementation is quantified as far as possible; (2) comprehensive comparison and selection: comprehensive comparative analysis is made from environmental, technical, economic, social and other aspects; (3) consistent comparison and selection: the selected program must comply with the requirements of the relevant development plan and standard, and adapt to local conditions. 5.2 Zero program analysis Zero program means that this comprehensive environmental regulation project is not implemented, but comparison and selection are made from environmental gains and losses and socio-economic point of view, and the results are shown in Table 5.1. As can be seen from Table 5.1, no environmental impact generated by the project is increased in the zero program, but the existing urban wastewater treatment capacity has been unable to meet the needs for sustained socio-economic development and increasing people's living standards, and increasing wastewater being directly discharged into the environment without any treatment will undoubtedly seriously contaminate surface water; although the implementation program of the project will bring some environmental impacts, in addition to permanent land occupation irreversible among these impacts, the rest can usually be prevented and cut down by taking appropriate measures for environmental protection; the environmental impacts during the construction period are temporary, but the social and environmental benefits from the project implementation and operation will be long-term, and especially it has a positive effect on further protection of water quality of Liujiang River. Therefore, from the point of view of promoting socio-economic development and environmental protection, the implementation program of the project is better than zero program, and the project construction is necessary. Table 5.1 Comparison and selection analysis on the zero program of the project Category Implementation program of the project No-project program (zero program) (1) in compliance with national technical (1) maintaining the status quo, such policies of urban domestic wastewater as vegetation not to be destroyed treatment and pollution control and (2) not changing the land use value technical policies of eutrophication (not occupying land, etc.) control of lakes and reservoirs (3) there are no damaged vegetation (2) in compliance with the outline of the and construction dust and other Main Twelfth Five-Year Plan for Liuzhou environmental impacts advantages Economic and Social Development, and Environmental Protection Plan (3) helping to further protect and improve the water quality of Liujiang river (4) making additional wastewater

77 LZEMP II - Restructured Project

treatment capacity of Liuzhou up to 180,000 m3/d (1) land occupation: 108983m2 Untreated wastewater flows directly (2) destroying vegetation in construction, into surface water bodies, which resulting in dust seriously pollutes the surface water Main (3) Equipment noise, sludge and disadvantages wastewater generated in the operation period, which may cause adverse effects on the environment Comprehensive From a social and environmental point of view, the implementation of the project analysis program is better than zero program 5.3 Comparison and selection analysis on WWTP program The project’s subprojects are an Expansion Project of WWTP, so the plant site is determined. Thus, the designed influent water quality, wastewater treatment process and disinfection process of the WWTP are mainly compared and selected in the following. 5.3.1 Comparison and selection analysis on the designed influent water quality of WWTP The designed influent water quality of the WWTP is usually determined according to the measured data of wastewater quality and the outdoor drainage design specifications, based on comprehensive consideration of the influent water quality of the same type of urban WWTPs and future development of the city.

The designed influent water quality of Baisha WWTP Project (I): BOD5=120mg/L; SS=160mg/L;

CODcr=300mg/L; NH3-N =25mg/L; TP=4mg/L. The designed influent water quality of

Longquanshan WWTP Project (I and II): BOD5=140mg/L; SS=160mg/L; CODcr=300mg/L; NH3-N =25mg/L; TP=3.5mg/L. The designed influent water quality of Baisha WWTP Project (I) is basically the same as that of Longquanshan WWTP Project (I and II). The measured influent water quality of Longquanshan WWTP Project (I and II) is shown in Table 5.2. Table 5.2 Monthly average value of the measured quality of water into Longquanshan WWTP COD BOD SS NH -N TP Time 5 3 (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) 2012.01 147 58.2 162 19.7 3.12 2012.02 150 51.8 102 19.4 3.17 2012.03 185 65.3 171 15.1 3.37 2012.04 183 73.4 190 16.4 3.35 2012.05 137 63.6 136 12.1 2.93 2012.06 70.2 24.7 59.7 7.90 1.36 2012.07 86.6 28.6 79.5 12.4 1.96 2012.08 96.2 34.4 122 12.5 1.86 2012.09 122 40.0 117 13.1 2.44 2012.10 179 68.0 188 15.9 3.28 2012.11 128 43.7 128 12.2 2.66 2012.12 134 44.3 111 14.3 2.66 2013.01 146 74.8 108 19.3 1.99 2013.02 173 79.4 96.9 23.0 2.86 2013.03 140 65.2 110 18.4 2.33 2013.04 93.8 44.7 60.0 12.7 1.60 2013.05 59.9 28.5 51.9 9.81 1.35 2013.06 107 39.2 139 10.8 1.89

78 LZEMP II - Restructured Project

Average value 129.87 51.5 118.4 14.7 2.45 Designed value 300 140 160 30 3.5 The measured quality of water into Baisha WWTP is shown in Table 5.3. Table 5.3 Monthly average value of the measured quality of water into Baisha WWTP COD BOD SS NH -N TP Time 5 3 (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) 2012.01 207 106 85.7 17 1.96 2012.02 285 178 110 20.4 2.38 2012.03 214 74 107 19 2.5 2012.04 238 82.6 136 16.2 3.28 2012.05 154 79.2 105 13.2 1.83 2012.06 116 40.4 81.8 11.2 1.31 2012.07 119 39 65 12.3 1.54 2012.08 123 38.4 75.5 12.6 1.56 2012.09 121 36.4 63.4 15.7 1.43 2012.10 141 44 88.6 18.5 1.73 2012.11 141 40.5 61.7 19.4 1.58 2012.12 153 52.6 82 19.2 2.04 Average value 166.83 67.6 88.5 16.2 1.93 of 2012 Designed value 300 120 160 25 4 According to the designed water quality and measured water quality of Longquanshan WWTP and Baisha WWTP, the designed influent water quality of Baisha WWTPＩand the average value of the measured water quality of Longquanshan WWTP and Baisha WWTP are compared, thus to recommend the best program for this project. The program comparison is shown in Table 5.4. Table 5.4 Technical comparison table for programs Designed Average value of measured influent Designed influent quality of Baisha water quality quality of Longquanshan WWTP and WWTP Project (I) Comparative item Baisha WWTP BOD5=120mg/L; SS=160mg/L; BOD5=60mg/L; SS=103mg/L; Introduction CODcr=300mg/L; NH3-N =25mg/L; CODcr=149mg/L; NH3-N =16mg/L; TP=4mg/L TP=2.2mg/L With high load resistance, a need to Advantages Lower investment adapt to regional development With no load resistance, the influent Disadvantages High investment quality in the dry season exceeds the designed influent quality Conclusion Recommended program Comparison program As shown in Table 5.4, the designed influent water quality of Baisha WWTPＩused as the project’s designed influent water quality, and according to the regional characteristics, TP of Longquanshan WWTP III is fine adjusted and the designed influent water quality of TP is 3.5 mg/L. 5.3.2 Sewage treatment process As for the wastewater treatment process to be selected for the project, the quantity of wastewater, effluent quality, economic conditions and local management level will be taken full account of, and priority use of the safe, reliable, low-power and low-input treatment process with advanced technology, little land area and easy to manage and operate is made. According to the influent and effluent quality requirements for WWTP, combined with the scale of the proposed WWTP, land use conditions, management level and other factors, after overall

79 LZEMP II - Restructured Project consideration, the project intends to choose A2/O process and pre-anaerobic Carrousel 2000 oxidation ditch process for technical and economic comparison, so as to recommend the best program for this project. Program One: A2/O process A2/O process is the anaerobic/anoxic/aerobic activated sludge process. Within Its structure, an anoxic zone is added after the anaerobic zone of A/O process and before the aerobic zone, and the aerobic zone with a nitrification function can enable the mixed liquid in the aerobic zone to flow back to the anoxic zone for denitrification. While wastewater flows through three different functional areas, under the effect of different microbial flora, organic matters, nitrogen and phosphorus in the wastewater are removed, thus to achieve the purpose of simultaneous biological removal of phosphorus and nitrogen. The process is the simplest nitrogen and phosphorus removal process; under anaerobic, anoxic and aerobic conditions alternate operation, it can suppress the propagation of filamentous bacteria, overcome sludge bulking, and make SVI value generally less than 100, in favor of mud-water separation, and only mixers are set in the anaerobic and anoxic segment. Because anaerobic, anoxic and aerobic zones are strictly separated, it benefits growth and reproduction of different microbial flora, and the effect of nitrogen and phosphorus removal is good. Currently, the process runs well and is widely used at home and abroad. In order to remove the impact of nitrate in return sludge in A2/O process on anaerobic phosphorus release, the return sludge can be reflowed twice, or water enters into two points and other measures are taken. Thus, A2/O, inverted A2/O and UCT and other processes are generated. A2/O process is generated on the basis of improvements in conventional A2/O process. That is, a selection zone (pre-anoxic zone) is added before the anaerobic zone in the conventional A2/O process, and return sludge flows back from two points, of which 20% to 50% flows back to the selection zone, and 50% to 80% flows back to the anoxic zone. Sewage and some return sludge flow into the selection zone and stay there for a residence time of 20 ~ 30min, when microbes remove nitrate nitrogen in the return sludge by using organic matters in influent water, and eliminate the adverse effect of nitrate nitrogen on anaerobic tank, thus to ensure the stability of the anaerobic tank and to improve the efficiency of phosphorus removal. Meanwhile, the improved A2/O process retains the mixed liquid of conventional A2/O process to reflow, thus ensuring the effect of nitrogen removal. It follows that the improved A2/O process has good effects of nitrogen and phosphorus removal. Program Two: pre-anaerobic Carrousel 2000 oxidation ditch process Sewage flows through the grit chamber and is measured by the electromagnetic flow meter, and then flows into the pre-anaerobic Carrousel 2000 oxidation ditch biological treatment tank, and the tank is composed of anaerobic tank and Carrousel 2000 oxidation ditch, in order to complete the process of biological removal of nitrogen and phosphorus and degradation of organic pollutants. The process is supplied with oxygen by vertical aerators.

80 LZEMP II - Restructured Project

Effluent water out of the biological pool is solid-liquid separated by secondary sedimentation tank, the supernatant water overflows through the weir, and it flows back into Liujiang River after disinfection during the dry season and is pumped into Liujiang River by Huilongchong pumping station during flood period. Part of sludge after precipitation flows back to the anaerobic tank and Carrousel 2000 oxidation ditch anoxic zone, and the remaining sludge is lifted to the thickening and dehydration workshop; after sludge is dewatered, dewatered sludge cakes are outward transported. Oxidation ditch pool has unique characteristics, and is featured as both completely mixed and plug flow; its maintenance and management are simple. But a mechanical surface aerator is used for the oxidation ditch, so water depth should not be too large, the power efficiency of oxygen is low, energy consumption is high, and the floor area is large. These two programs above can achieve water quality standard required by the project design, but there are technical and economical differences; now technical advantages and disadvantages and economic relevant indicators of the two programs are listed in the Table 5.5. Table 5.5 Technical comparison table for wastewater treatment process programs Program Two (pre-anaerobic Item Program One (A2/O) Carrousel 2000 oxidation ditch process) Treatment effect Good Good Advanced and mature Advanced, mature and Advanced, mature and technology widely used widely used Power efficiency High Low Number of structures Many A few Process flow Simple Simple Operation, management and Complex Simple maintenance Operational reliability and High High flexibility Floor area Small Large Number of devices Many A few Oxygenation efficiency High Low Energy consumption Low High Good treatment effect, stable The technical program of effluent quality, advanced A2/O process has good and mature technology, effect, stable effluent quality widespread domestic Advantages and advanced and mature applications, etc., and technology, and is widely relatively simple operation, used at home management and maintenance In case of using blast aeration, there will be many equipment and the operation and management are Large floor space and low Disadvantages relatively cumbersome, but power efficiency the floor space is small and the energy consumption is low Conclusion Recommended program Comparative program

81 LZEMP II - Restructured Project

After integrating the above comparison, and at the same time, considering the A2/O process adopted for the Baisha WWTP Project (I) and Longquanshan WWTP Project (I and Phase Ⅱ), the actual running effect is good, and the A2/O biological denitrification and phosphorus removal process is proposed to be still used for the current Restructured Project. 5.3.3 Treated water disinfection process Disinfection methods currently used are liquid chlorine, sodium hypochlorite, chlorine-ammonia, chlorine dioxide, ultraviolet light and ozone. According to the actual needs of the project, liquid chlorine, UV and chlorine dioxide are selected for comparison, as detailed in Table 5.6. Table 5.6 Comparison table of disinfection programs Factor Liquid chlorine UV Chlorine dioxide Dosage 5～10mg/L 2～6mg/L Contact time 30min 10～100S 20min Investment Low High Very high Pay attention to safety, prevent UV lamps need for Pay attention to safety and O and M chlorine leakage, and regular exchange prevent explosion note chlorine bottles frosting Residual Yes No Yes chlorine High sterilization efficiency, short contact With continued Do not form chloroform time required; physical disinfection of organic halides; good and chemical properties residual chlorine; low bactericidal effect, do not Main of water are not changed, cost; simple operation accept pH influence; with a advantages organic chlorides and and accurate dosage; strong oxidation, in addition chlorophenol taste not without huge to manganese oxide, iron produced; with complete equipment and other substances sets of equipment; easy to operate Where there is a high content of organic matters in raw water, With no continuous Can not be stored, but site it will produce disinfection, vulnerable to prepared for use at any Main chloroform and other repeated contamination; time; complex preparation disadvantages organic halides; it will high power consumption equipment; high taste chlorophenol and the useful life of requirements for operation where water contains lamps to be improved and management phenol; chlorine itself is toxic Conclusion Comparative program Recommended program Comparative program Through the above comparison, ultraviolet disinfection has small floor space, simple operation, good sterilization effect and many other advantages, so the ultraviolet disinfection process is used in the project.

82 LZEMP II - Restructured Project

6 Public Participation and Information Disclosure 6.1 Purpose, method and scope LZEMP II - restructured project plans to apply for World Bank loan, which is designed to further accelerate the comprehensive environmental regulation of Liuzhou and the construction of urban environmental infrastructure in Liuzhou, and to create the conditions for harmonious development of the local economy and society. The implementation of this project will help improve the water environment of Liujiang River basin, will be conducive to improving the ecological functions of the basin and enhance the city's style and taste, and will benefit improving the quality and level of people's lives, thus to lay a solid foundation for the sustainable development of Liuzhou city. However, because the construction and operation of the project will result in environmental impacts on surrounding areas of each sub-project, which will be directly related to the vital interests of the towns and villages and people near the project, according to China's environmental protection laws and regulations as well as the requirements of the World Bank's safeguard policies (OP4.01), an announcement of public participation on the general project and two sub-projects was issued and opinion polls was conducted. The survey methods include releasing the announcement on public participation and public participation questionnaire and holding forums, and the scope is residents within 2 sub-project sites and the spheres of influence. 6.2 Information Disclosure According to the provisions of the Interim Measures for Public Participation in Environmental Impact Assessment, the Measures for Environmental Information Disclosure (Trial) and the World Bank’s OP/BP4.01 Environmental Assessment and BP17.50 "Information Disclosure, this information disclosure on environmental assessment was conducted by means of public participation in public announcement via the Internet, posting notices, etc. The announcement was planned to be released for two rounds, of which the first round was arranged in the preparation phase of Environmental Impact Assessment report for each sub-project, and the second round was arranged in the phase of completion of the draft general report on Environmental Impact Assessment. The first round of information disclosure was carried out twice, respectively when conducting Environmental Impact Assessment on each sub-project, and it was released on Liuzhou Environmental Protection website for the two sub-projects respectively. The details are shown in Table 6.1 and Figure 6.1 ~ 6.2. The first information announcement in the first round of information disclosure was made to the public after receiving the Environmental Impact Assessment commission, mainly explaining to the public the information each sub-project’s location, construction content and other profiles, and no objection or question was received during the public notice; the second information announcement in the first round of information disclosure was made to the public after the completion of draft Environmental Impact Assessment report of each sub-project, mainly presenting a brief Environmental Impact Assessment report to the public and explaining the extent of potential environmental impacts by each sub-project, taken

83 LZEMP II - Restructured Project

environmental protection measures and evaluation results, etc., while the public participated in surveying the information relevant to the concerns of the project construction, but no objection or question was received during the public notice. The second round of information disclosure was publicized in July 2014 on the website of Liuzhou City Government Network and Liuzhou Environmental Protection Bureau, with regard to the General Report and Environmental Management Plan in full. The second round of announcement mainly explained the predictions on pollution impacts by the entire project and the preventive measures taken, as well as the feedback on the viewpoints raised from the public in the survey, and received public comments again, in order to obtain the public understanding of the project construction and the taken mitigation measures. No objection or question was received during the public notice. Table 6.1 Summarization of information disclosure Environmental Time for No. Content Publicity way and query site of EA Impact Report(EA) EA notice The first publicity Liuzhou Environmental Protection Project December Bureau announced on Baisha WWTP II construction 2013 website(http://www.lzepb.gov.cn) site, content, The first Post notices on all sensitive points scale, rating publicity Liuzhou Environmental Protection procedure and Longquanshan December Bureau announced on evaluation unit, WWTP Ⅲ 2013 website(http://www.lzepb.gov.cn) etc. Post notices on all sensitive points Liuzhou Environmental Protection Brief Draft Bureau announced on Baisha WWTP II Environmental April 2014 website(http://www.lzepb.gov.cn) The Impact Report Post notices on all sensitive points second Liuzhou Environmental Protection publicity Brief Draft Longquanshan Bureau announced on Environmental April 2014 WWTP Ⅲ website(http://www.lzepb.gov.cn) Impact Report Post notices on all sensitive points The second publicity All Liuzhou city government website Environmental (http://www.liuzhou.gov.cn) ; Impact Report Liuzhou Environmental Protection 3 General report and July 2014 Bureau announced on environmental website(http://www.lzepb.gov.cn) management plan

84 LZEMP II - Restructured Project

The first public show on the Internet

The second public show on the Internet

Figure 6.1 The first round of information disclosure to the first public show of Baisha WWTP II

85 LZEMP II - Restructured Project

Figure 6.2 The first round of information disclosure of Longquanshan WWTP Ⅲ

86 LZEMP II - Restructured Project

Figure 6.3 The second round of information disclosure of the project 6.3 Public Participation and Survey 6.3.1 Survey Method and Content The public surveys were the same twice done by use of questionnaires, and the public participation in the survey for the first time was carried out by the Project Employers and

87 LZEMP II - Restructured Project

Environmental Impact Assessment unit by questionnaires, forum and other forms in April ~ May, 2014 after the brief announcement of the first round of each sub-project’s Environmental Impact Assessment report was published. The second public participation in the survey was carried out by the Project Employers and Environmental Impact Assessment unit by questionnaires and collective interviews in August 2014after the announcement of the second round of summary reports was published. In the surveys, the Environmental Impact Assessment Unit presented in the questionnaire clearly to the public the brief descriptions of the projects, including key environmental impacts expected to be generated from the projects. 6.3.2 Analysis of questionnaire results The contents of two questionnaires are basically the same, the interviewees are approximately the same, and the second survey complements the first survey. Since the two sub-projects are far away from each other, and the surrounding environmental profiles and the distribution of sensitive points are large in difference, the surveys and statistical analysis on the two sub-projects were separately conducted. The project questionnaire is shown in Table 6.2-6.4 and survey results are shown in Table 6.5 -6.8.

Table 6.2 LZEMP II ——Baisha WWTP II Public opinion questionnaire of Environmental Impact Assessment

Ⅰ. Introduction to basic situations of project construction 1. Construction Unit: Liuzhou Sewage Treatment Co., Ltd. 2. Environmental Impact Assessment Unit: Liuzhou LiuHuan Environmental Protection Technology Co., Ltd. 3. Project Description: Baisha WWTP I covers a land area of 70141m2, and the total size of its wastewater treatment capacity is 100,000 m3/d. Now, the quantity of wastewater into Baisha WWTP has basically reached the design capacity 100 000 m3/d. With the completion of North Outer Ring Expressway and some trunk roads in Bailu and Xianglan Areas, the development of industrial parks is stepping into a fast pace, the construction and improvement of wastewater collection pipe networks are ongoing, along with a rapid increase in the quantity of wastewater, and the quantity of wastewater flowing into the plant is about to be more than the existing treatment capacity, so the size of current operation can not meet the needs of urban construction and development, and the restructuring of the WWTP is imperative. The new land planned for the project is 40,600 square meters, the designed wastewater treatment capacity is up to 80,000 m3/d, and the wastewater treatment process used is A2/O Grade II biological treatment + UV disinfection treatment process. The main construction content of the project is fine grid and aerated grit chamber, A2/O biological pool, secondary sedimentation tank, ultraviolet disinfecting tank, sludge thickening and dehydration machine room, supporting plant roads, water supply and drainage works, electrical works, street lighting works, afforestation works and other ancillary supporting facilities. The estimated total investment of the project is RMB 202,020,000. 4. Main environmental problems generated by the project in the operation period, environmental measures and effect (1) wastewater: Under normal operating conditions of the project, after wastewater is treated and is discharged upon meeting the standard, the contribution to evaluating the concentration of river is not obvious, and the concentration of water quality of reduced section after superimposing the background concentration of river meets the standard, indicating normal operation of wastewater treatment in the

88 LZEMP II - Restructured Project project; the wastewater discharge in line with the standard does not affect the assessment on water quality of river. ② where the wastewater treatment equipment of the project fails, wastewater is directly discharged without treatment, the effluent concentration of wastewater pollutants is high, and it will cause excessive concentration of the water quality of the river being assessed after it flows into Liujiang River, leading to a long excessive pollution zone, indicating when the project’s wastewater treatment equipment fails, the impact of tail water being discharged directly to Liujiang River has a very large impact on the water quality of the river being assessed. (2) Exhaust gas: odor generated during the project operation is mainly from the coarse grid and water pumping house, fine grid and aerated grit chamber, biological pool, sludge pumping house and sludge dehydration and thickening machine room, and odor is of fugitive emission. Odor is mainly composed of H2S and NH3. Through rational layout, the project’s biological pool and Baisha WWTP I biological pool are proposed to collect odor; after deodorization by use of biological deodorizing tower, odor during the operation period of the project has little effect on the surrounding sensitive points, and the ambient environment of Baisha WWTP can meet the requirements of air and health protective distance. (3) Noise: The main noise source of the project is from wastewater treatment equipment in operation. Low-noise equipment is selected and used in the project, along with strengthening greenery planting around the project and other measures. It is predicted and analogized that the contribution value of operating noise from WWTPs running is compliant by sound functional area, with little impact on the surrounding sensitive points. (4) Solid Waste: Solid waste are mainly sludge and domestic garbage of employees. After the project’s sludge is dewatered, it is transported to the Sludge Disposal Centre at Liuzhou WWTP for centralized processing, which has little impact on the surrounding environment; domestic garbage is uniformly collected, transported and treatment the sanitation department commissioned, which has little effect on the surrounding environment.

Ⅱ.Basic information of investigators

Name Age

Gender Education

Profession Contact method

Work or living place

Ⅲ.Content of survey

1、Are you satisfied about the present situations of regional environmental quality？ A. Well Satisfied B. Satisfied C. Dissatisfied

2. What’s impact of odor from the current Baisha WWTP in operation on you？ A. No effect B. Small effect C. Large effect

3、Do you know the basic situations of the construction project A. understand B. gained some understanding C. do not understand

4、After this project is put into operation, what environmental problems you will worry about？(Multiple choices) A. odor B. noise C. sludge

89 LZEMP II - Restructured Project

5、Do you think whether the project construction is conducive to the development of local economy: A. favorable B. unfavorable C. unclear

6、Your opinion to the project construction: (if opposed to, please indicate the reason for the opposition) A. agree B. disagree

7、What’s your advice to the project’s environmental protection work:

Note: (1) please use “√” to indicate your attitude to every question, such as “A √”; you can choose more than one option;

Surveyed by: Survey time:

Liuzhou Sewage Treatment Co., Ltd. Liuzhou LiuHuan Environmental Protection Technology Co., Ltd.

Table 6.3 LZEMP II - Longquanshan WWTP III Public opinion questionnaire of Environmental Impact Assessment

Ⅰ. Introduction to basic situations of project construction 1. Construction Unit: Liuzhou Sewage Treatment Co., Ltd. 2. Environmental Impact Assessment Unit: Liuzhou LiuHuan Environmental Protection Technology Co., Ltd. 3. Project Description: Longquanshan WWTP I and II cover a land area of 121800m2, and the total size of their wastewater treatment capacity is 250,000 m3/d. Now, the quantity of wastewater into Longquanshan WWTP has basically reached the design capacity 250,000 m3/d. As the improvement of wastewater collection pipe networks with the service scope is ongoing, and the development of east industrial parks at the south of Liushi Road is stepping into a fast pace, the construction and improvement of such wastewater collection pipe networks take pace, along with a rapid increase in the quantity of wastewater, and the quantity of wastewater flowing into the plant is about to be more than the existing treatment capacity, so the size of current operation can not meet the needs of urban construction and development, and the restructuring of the WWTP is imperative. The new land planned for the project is 78,830 square meters, the designed wastewater treatment capacity is up to 100,000 m3/d, and the wastewater treatment process used is A2/OGrade II biological treatment + UV disinfection treatment process. The main construction content of the project is fine grid and aerated grit chamber, A2/O biological pool, secondary sedimentation tank, ultraviolet disinfecting tank, sludge pumping house, supporting plant roads, water supply and drainage works, electrical works, street lighting works, afforestation works and other ancillary supporting facilities. The estimated total investment of the project is RMB 182,940,000. 4. Main environmental problems generated by the project in the operation period, environmental measures and effect (1) wastewater: Under normal operating conditions of the project, after wastewater is treated and is discharged upon meeting the standard, the contribution to evaluating the concentration of river is not obvious, and the concentration of water quality of reduced section after superimposing the background concentration of river meets the standard, indicating normal operation of wastewater treatment in the project; the wastewater discharge in line with the standard does not affect the assessment on water quality of river. ② where the wastewater treatment equipment of the project fails, wastewater is directly discharged without treatment, the effluent concentration of wastewater pollutants is high, and it will

90 LZEMP II - Restructured Project cause excessive concentration of the water quality of the river being assessed after it flows into Liujiang River, leading to a long excessive pollution zone, indicating when the project’s wastewater treatment equipment fails, the impact of tail water being discharged directly to Liujiang River has a very large impact on the water quality of the river being assessed. (2) Exhaust gas: odor generated during the project operation is mainly from the coarse grid and water pumping house, fine grid and aerated grit chamber, biological pool, sludge pumping house and so on, and odor is of fugitive emission. Odor is mainly composed of H2S and NH3. Through strengthening the operation and management of the WWTP, reducing the odor emission, and making rational layout of the position for wastewater treatment structure with a high concentration of odor, odor during the operation period of the project has little effect on the surrounding sensitive points. (3) Noise: The main noise source of the project is from wastewater treatment equipment in operation. Low-noise equipment is selected and used in the project, along with strengthening greenery planting around the project and other measures. It is predicted and analogized that the contribution value of operating noise from WWTPs running is compliant by sound functional area, with little impact on the surrounding sensitive points. (4) Solid Waste: Solid wastes are mainly sludge and domestic garbage of employees. After the project’s sludge is dewatered, it is transported to the Sludge Disposal Centre at Liuzhou WWTP for centralized processing, which has little impact on the surrounding environment; domestic garbage is uniformly collected, transported and treatment the sanitation department commissioned, which has little effect on the surrounding environment.

Ⅱ.Basic information of investigators

Name Age

Gender Education

Profession Contact method

Work or living place

Ⅲ.Content of survey

1. Are you satisfied about the present situations of regional environmental quality？ A. Well Satisfied B. Satisfied C. Dissatisfied

2. What's impact of odor from the current Longquanshan WWTP in operation on you A. No effect B. Small effect C. Large effect

3、Do you know the basic situations of the construction project A. understand B. gained some understanding C. do not understand

4、After this project is put into operation, what environmental problems you will worry about？ (Multiple choices) A. odor B. noise C. sludge

5、Do you think whether the project construction is conducive to the development of local economy: A. favorable B. unfavorable C. unclear

6、Your opinion to the project construction: (if opposed to, please indicate the reason for the opposition) A. agree B. disagree

91 LZEMP II - Restructured Project

7、What’s your advice to the project’s environmental protection work:

Note: (1) please use “√” to indicate your attitude to every question, such as “A √”; you can choose more than one option;

Surveyed by: Survey time:

Liuzhou Sewage Treatment Co., Ltd. Liuzhou LiuHuan Environmental Protection Technology Co., Ltd. Table 6.4 LZEMP II -restructured project Public opinion questionnaire of Environmental Impact Assessment

Ⅰ. Introduction to basic situations of project construction 1. Construction Unit: Liuzhou Sewage Treatment Co., Ltd. 2. Environmental Impact Assessment Unit: Liuzhou LiuHuan Environmental Protection Technology Co., Ltd. 3. Project Profile: LZEMP II - restructured project includes two sub-projects, that is Longquanshan WWTP III and Baisha WWTP II. The design scale of Longquanshan WWTP III is 100, 000m3/d, and the design scale of wastewater treatment capacity for Baisha WWTP II is 80, 000m3/d; A2/O Grade II of biological treatment + ultraviolet disinfection process is adopted as the wastewater treatment process of such two subprojects. Two subprojects have a total budgetary investment of RMB 384.96 million. (1) wastewater: Under normal operating conditions of the project, after wastewater is treated and is discharged upon meeting the standard, the contribution to evaluating the concentration of river is not obvious, and the concentration of water quality of reduced section after superimposing the background concentration of river meets the standard, indicating normal operation of wastewater treatment in the project; the wastewater discharge in line with the standard does not affect the assessment on water quality of river. ② where the wastewater treatment equipment of the project fails, wastewater is directly discharged without treatment, the effluent concentration of wastewater pollutants is high, and it will cause excessive concentration of the water quality of the river being assessed after it flows into Liujiang River, leading to a long excessive pollution zone, indicating when the project’s wastewater treatment equipment fails, the impact of tail water being discharged directly to Liujiang River has a very large impact on the water quality of the river being assessed. (2) Exhaust gas: odor generated during the project operation is mainly from the coarse grid and water pumping house, fine grid and aerated grit chamber, biological pool, sludge pumping house and sludge dehydration and thickening machine room, and odor is of fugitive emission. Odor is mainly composed of H2S and NH3. Through rational layout, after odor is collected from coarse grid and water pumping house, sludge dehydration and thickening machine room and sludge thickening tank in the Baisha WWTP, odor from Baisha WWTP and Longquanshan WWTP has little effect on the surrounding sensitive points, and the distance from Baisha WWTP and Longquanshan WWTP to the surrounding sensitive points meets relevant requirement. (3) Noise: The main noise source of the project is from wastewater treatment equipment in operation. Low-noise equipment is selected and used in the project, along with strengthening greenery planting around the project and other measures. It is predicted and analogized that the contribution value of operating noise from WWTPs running is compliant by sound functional area, with little impact on the surrounding sensitive points. (4) Solid Waste: Solid wastes are mainly sludge and domestic garbage of employees. After the project’s sludge is dewatered, it is transported to the Sludge Disposal Centre at Liuzhou WWTP for centralized

92 LZEMP II - Restructured Project processing, which has little impact on the surrounding environment; domestic garbage is uniformly collected, transported and treatment the sanitation department commissioned, which has little effect on the surrounding environment.

Ⅱ.Basic information of investigators

Name Age

Gender Education

Profession Contact method

Work or living place

Ⅲ.Contnet of survey

1、Are you satisfied about the present situations of regional environmental quality？ A. Well Satisfied B. Satisfied C. Dissatisfied

2. What's impact of odor from the current WWTP in operation on you? A. No effect B. Small effect C. Large effect

3、Do you know the basic situations of the construction project A. understand B. gained some understanding C. do not understand

4、After this project is put into operation, what environmental problems you will worry about？(Multiple choices) A. odor B. noise C. sludge 5、Do you think whether the project construction is conducive to the development of local economy: A. favorable B. unfavorable C. unclear

6、Your opinion to the project construction: (if opposed to, please indicate the reason for the opposition) A. agree B. disagree

7、What’s your advice to the project’s environmental protection work:

Note: (1) please use “√” to indicate your attitude to every question, such as “A √”; you can choose more than one option;

Surveyed by: Survey time:

Liuzhou Sewage Treatment Co., Ltd. Liuzhou LiuHuan Environmental Protection Technology Co., Ltd.

93 LZEMP II - Restructured Project

Ⅰ.Survey results of Baisha WWTP II Survey summary of Baisha WWTP II is shown in Table 6.5. Table 6.5 Summary of basic situations of respondents for Baisha WWTP II Number of Item Content Ratio (%) persons Male 45 47.37 Gender Female 50 52.63 18~30 years old 48 50.53 31~40 years old 28 29.47 Age 41~50 years old 15 15.79 50 years old above 4 4.21 Elementary school, middle school 12 12.63 Education High school, college 30 31.58 University, college 53 55.79 Affiliated Medical School of Guangxi University of Science 20 21.05 and Technology Baisha Village 30 31.58 Liuzhou 39th Middle School 3 3.16 Affiliated Medical School, Guangxi University of 10 10.53 Individual Technology Bili Xingcheng 4 4.21 Lvshui Yunjian Respondents Community(under 4 4.21 distribution construction) Riverside Century Town 12 12.63 Fuhong Weilanban 4 4.21 Liugang living area 8 8.42 Liuzhou Xingzhi Primary —— —— School Liuzhou Changtang Middle —— —— Unit School Affiliated Secondary Healthy School, Liuzhou Medical —— —— College Farmers 20 21.05 Workers 20 21.05 Profession Teachers 22 23.16 Individuals 22 23.16 Doctors 11 11.58 95 copies of individual public participation questionnaires and 3 copies of unit public participation questionnaires were taken back from the first survey of Baisha WWTP II. Survey results: (i) Survey results of individuals Survey results of individuals are shown in Table 6.6. Table 6.6 Survey of public participation Survey Percentage No. Content of survey Public options statistics (%)

94 LZEMP II - Restructured Project

(persons) Are you satisfied A. Well Satisfied 24 25.3 about the present B. Satisfied 55 57.9 1 situations of regional environmental C. Dissatisfied 16 16.8 quality？

What’s impact of A. No effect 20 21.1 odor from the current 2 Baisha WWTP in B. Small effect 72 75.8 operation on you？ C. Large effect 3 3.1 Do you know the A. understand 9 9.5 3 basic situations of the B. gained some understanding 61 64.2 construction project C. do not understand 25 26.3 After this project is A. odor 63 66.3 put into operation, 4 what environmental problems you will B. noise 12 12.6 ？ worry about C. sludge 30 31.6 Do you think whether A. favorable 78 82.1 the project construction is 5 B. unfavorable 0 0 conducive to the development of local C. unclear 17 17.9 economy:

What’s your opinion A. agree 94 98.9 6 to this project？ B. disagree 1 1.1 Please make your opinion on 7 environmental 1 Try not to let the wastewater and sludge into the river. protection of the 2 Propagandize in place, and the results should be made public. project: (1) a total of 100 personal public participation questionnaires were issued in the public participation in this project survey and 95 copies were taken back. The public participation recovery is 95%. The survey is compliant with the evaluation provisions, and the results are real and effective. (2) analysis of the survey results: ① among the satisfaction survey of regional status quo, 25.3% of respondents were well satisfied with the regional environment, 57.9% of respondents were satisfied with the regional environment, and 16.8% of respondents were not satisfied with the region, of who the respondents that felt dissatisfied are mostly the teachers of the Affiliated Medical School of Guangxi University of Science and Technology and the residents of Riverside Century Town and Fuhong Weilanban; the reason that the school teachers were not satisfied is because exhaust gas produced by some of auto repair shops nearby the school is relatively pungent and unbearable; the residents of Riverside Century Town and Fuhong Weilanban think there is a drainage ditch (Huilonggou) near the place of their residence, where odor comes perennially out, and they hope to get resolved.

95 LZEMP II - Restructured Project

②the surrounding impacts of odor from Baisha WWTP in operation basically focus on two options, namely small impact and no impact, respectively, accounting for 75.8 and 21.1%, but the large impact accounts for 3.1%; through the understanding, the residents of Riverside Century Town consider a large impact, and they think the drainage ditch (Huilonggou) where they live near is caused by which the wastewater of Baisha WWTP is not compliant in the process of treatment but is discharged to Huilonggou; after verification the smelly gas from Huilonggou is mainly caused by the non-compliant water from the upstream reaches of Huilonggou. Currently, Liuzhou Sewage Treatment Co., Ltd. is remedying Huilonggou. ③9.5% of people have understood this project, 64.2% of people have slightly understood the construction of this project, and 26.3% of people do not understand the project. ④for the environmental issues the respondents are most concerned about after completion of the project, odor accounts for 66.3%, followed by mud and noise, accounting for 231.6% and 12.6% respectively. ⑤ 82.1% of respondents believe that the construction of this project is beneficial to the development of local economy, 17.9% of respondents take a wait-an-see attitude to the impact on local economic development after the completion of this project, and there are not people who think this project is detrimental to the local development. ⑥ through the understanding of the project-related content, 98.9% of the public agreed the project construction, and 1.1% of the public (a person, a teacher from the Affiliated Medical School of Guangxi University of Science and Technology) did not agree the project construction, because with the rapid development of Liubei Industrial Park, after the completion of the second phase of this project, its processing capacity will soon reach a saturation point, and this will not reduce the amount of wastewater discharge to the surrounding residents. This evaluation attaches very importance to these unfavorable opinions. And the public who did not agree was interviewed by telephone and after patient and careful interpretation, this person who did not agree changed the opinion but was in favor of the project construction. (2) Unit survey results Three units surveyed believe that odor from Baisha WWTP in operation has no effect on them, and they all agree with the construction of the project. Ⅱ. Survey results of Longquanshan WWTP III sub-project: The survey summary of Longquanshan WWTP III subproject is shown in Table 6.7. Table 6.7 Basic information of investigators in Longquanshan WWTP Ⅲ Number of Item Content Ratio (%) persons Male 60 62.5 Gender Female 36 37.5 18~30 years old 44 45.8 Age 31~40 years old 26 27.1 41~50 years old 16 16.7

96 LZEMP II - Restructured Project

Number of Item Content Ratio (%) persons 50 years old above 10 10.4 Elementary school, middle school 30 31.3 Education High school, college 29 30.2 Respondents University, college 23 23.9 distribution Others 14 14.6 Jila village 35 36.5 Taian community 25 26 Individual Liuji living area 20 20.8 Hongtai Mingting 16 16.7

Liuzhou 24th Middle School —— —— Unit Qiaodi Branch Third Brigade, Liuzhou Social Security Patrol —— —— and Prevention Corps Farmers 16 16.7 Workers 30 31.3 Profession Teachers 20 20.8 Individuals 10 10.4 Others 20 20.8 96 copies of individual public participation questionnaires and 2 copies of unit public participation questionnaires were taken back from the survey of Longquanshan WWTP Project Ⅲ. (i) Survey results of individuals Survey results of individuals are shown in Table 6.8. Table 6.8 Statistical table for content of survey and survey results relating to public participation Survey statistics Percentage No. Content Public options (persons) (%) A. Well 25 26.0 Are you satisfied with the Satisfied 1 current environmental B. Satisfied 30 31.3 situation of the region？ C. Dissatisfied 41 42.7 What's impact of odor from A. No effect 48 50.0 the current Longquanshan 2 B. Small effect 33 34.4 WWTP in operation on you? C. Large effect 15 15.6 A. understand 47 48.9 Do you know the basic B. gained 3 situations of the some 38 39.6 construction project？ understanding C. do not 11 11.5 understand After this project is put into A. odor 80 83.3 operation, what 4 environmental problems B. noise 66 68.8 you will worry about？ C. sludge 54 56.3 Do you think whether the A. favorable 91 94.8 5 project construction is B. unfavorable 4 4.2

97 LZEMP II - Restructured Project

conducive to the development of local C. unclear 1 1.0 economy？ Your overall view for the A. agree 96 100.0 6 construction of this project B. disagree 0 0.0 (1) a total of 100 personal public participation questionnaires were issued in the public participation in this project survey and 96 copies were taken back. The public participation recovery is 96%. The survey is compliant with the evaluation provisions, and the results are real and effective. (2) analysis of the survey results ① the public surveyed are mostly well satisfied with the regional current environment, accounting for 26%; those satisfactory account for 31.3%, and those dissatisfied account for 42.7%. The main reason that they were not satisfied is because the mechanical noise from the machining industry in the production process in the project area and the dust generated during vehicle transport have a large impact on the area. ② the public surveyed believe that odor from the current Longquanshan WWTP in operation has no impact on the surrounding environment, accounting for 50%; those with little impact account for 34.4%; and those with great impact account for 15.6%. ③ the understanding of the public surveyed about the basic situation of the construction project is good understanding, accounting for 48.9%; slight understanding, accounting for 39.6%, and non-understanding, accounting for 11.5%. ④ the environmental issues that are concerned about by the public surveyed after this project is completed and put into operation are odor, accounting for 83.3%, noise, accounting for 68.8% and sludge, accounting for 56.3%. ⑤ as for whether this project is conducive to local economic development, 94.8% of the public surveyed think it favorable, 4.2% of the public feel negative, and 1% of the public are unclear. ⑥ through understanding of the project-related content, 100% of the public are in favor of the project. Ⅱ.Unit survey results Two units surveyed believe that odor from Longquanshan WWTP in operation has no effect on them, and they both agree with the construction of the project. 6.3.3 Public Participation in Survey Results and Discussion Through face to face conversations with the public surveyed and according to statistical findings, we learned that the public are very concerned about the impacts from the project on the surrounding environment, all the units surveyed agree the construction of Baisha WWTPⅡ sub-project, 98.9% of individuals ARE in favor of the project construction, and 1.1% of individuals (1 person) did not agree the project construction, because with the rapid development of Liubei industrial park, after the completion of Baisha WWTP Ⅱ sub-project, its processing capacity will

98 LZEMP II - Restructured Project soon reach a saturation point, but this will not reduce the amount of wastewater discharge from surrounding residents. After telephone interviews and explanation, the public that did not agree changed its opinion, and was in favor of the construction of Baisha WWTP II subproject. All the units surveyed agree the construction of Longquanshan III subproject, and 100% surveyed individuals support the project construction. In summary, the vast majority of the public surveyed agree the construction of the LZEMP II - restructured project.

99 LZEMP II - Restructured Project

7 Environmental Management Plan 7.1 Purpose of Environmental Management Plan Environmental Management Plan aims at proposing appropriate mitigation measures for all the potential environmental impacts, especially negative impacts analyzed from this Environmental Impact Assessment, and proposing an environmental management system to ensure the implementation of these measures, in order to implement environmental responsibilities and the division of work for all parties concerned with the project; also, training programs are proposed to strengthen the capacity building of the Environmental Management Plan for the project implementation. An environmental monitoring plan is proposed for checking the results implementation. 7.2 Environmental management mechanisms and responsibilities Project Employer, design unit, Environmental Impact Assessment Unit, supervision unit, construction units, monitoring unit, operating units and other units at different phases of the project, as well as major stakeholders and other main environmental management agencies hold varying responsibilities for environmental management and different staffing requirements, and the specific requirements are detailed in Table 7.1. Table 7.1 List of environmental management agencies Main responsibilities for Phase Stakeholders Staffing environmental management 1. responsible for a series of environmental protection management during project design and preparation; Employer (Liuzhou 2. implementing environmental Sewage Treatment Co., protection funds; 2 Ltd.) 3. responsible for liaison with governmental environmental authorities and coordination with the implementation of environmental management issues 1. incorporating the environmental Design and protection measures into the design preparation scheme and budgets; Design unit 2 writing the environmental mitigation 1 measures in the Environmental Management Plan into the technical specifications of tender documents. 1. providing technical support for the engineering design of environmental protection; Environmental Impact 2 preparing Environmental Impact 3 Assessment Unit Assessment documents; 3. preparing Environmental Management Plan.

100 LZEMP II - Restructured Project

1. responsible for a series of environmental protection management during the construction phase of the project, and implementing environmental protection funds; 2. management and supervision of the environmental protection work during construction; Employer 3. responsible for liaison with 2 governmental environmental authorities and coordination with the implementation of environmental management issues. 4. tracking the implementation of the Environmental Management Plan, and reporting regularly to the same level of authorities, and provincial Project Office and the World Bank. 1. in accordance with the tender documents, contracts, the Environmental Management Plan, etc., carrying out the environmental protection measures and work during the construction period; Construction 2. accepting the guidance and period supervision of the Project Employer’s environmental management personnel and environmental supervision engineers and the relevant government departments; Accepting technical support from Contractor environmental advisory bodies. 2 Supervising the contractor to fulfill the environmental mitigation measures in the contract, supervising the implementation of the contractor on the site, and cooperating with the Construction Unit to carry out Engineering/environment environmental management of the supervisor project 1 1. in accordance with the Project Employer’s commission and the environmental monitoring plan proposed by the evaluation, completing the environmental monitoring during construction and operation periods of the project; According 2 If there is an unusual situation in to the construction, as commissioned by scope of Environmental the Employer, monitoring the entrusted monitoring unit abnormal situation. tasks

101 LZEMP II - Restructured Project

1. checking the environmental protection measures of the Employer and construction units randomly; receiving the implementation reports on the Environmental Management Plan submitted by the Project Employer and project office, and administration according to the reports; 2 If there is an unusual situation in Local environmental construction, arranging emergency protection bureau measures; 1 1. according to the Project Employer’s commission and the Environmental Impact Report as well as environmental design outcomes, providing technical support for environmental protection during the period of the project construction; 2. providing the contractor with technical guidance for environmental protection, and doing a good job in Technical environmental training during the assistance/consultant period of the project construction. Unlimited 1. responsible for environmental protection management after operation, and implementation of the Environmental Management Plan as well s the mitigation measures and monitoring during operator; 2. responsible for liaison with related government departments and coordination and implementation of Employer or operating environmental management issues. units Environmental emergency treatment 2 According to the Project Employer’s commission and the environmental According monitoring plan proposed by the to the evaluation, completing environmental scope of Operation Environmental monitoring during the operation entrusted period monitoring unit period of the project. tasks 1. carrying out environmental protection acceptance; 2. management and oversight of environmental standards during operation; 3. supervision and inspection of the operation of supporting environmental protection facilities for the built facilities; 4. supervision and management Local environmental included in conventional pollution protection bureau sources 2 Social public or private organizations Community supervision Unlimited The project involves two sub-projects, both of which are domestic wastewater treatment projects,

102 LZEMP II - Restructured Project and their processing scale is similar and the treatment processes are the same, so there are a lot in common with regard to the environmental impacts between similar projects. The same mitigation measures can be taken for these common environmental impacts, and these common measures for each wastewater treatment subproject are not repeated. Meanwhile, specific mitigation measures for each wastewater treatment subproject are proposed for special environmental impacts caused by different construction sites. As for the potential adverse environmental impacts identified from environmental assessment, the countermeasures and mitigation measures proposed respectively for the preparation, construction and operation periods of subprojects are shown in the Environmental Management Plan booklet. Because the project is LZEMP II -restructured project, an urban wastewater treatment project, its environmental management is substantially similar to the urban wastewater treatment projects in the World Bank-Funded LZEMP II, and the original Environmental Management Plan is still applicable. The Environmental Impact Assessment based only on the restructuring characteristics is to supplement (see this chapter) the original Environmental Management Plan, without further preparation. 7.3 Measures for prevention and mitigation of environmental risks The preventive measures proposed for the potential environmental risks identified during construction and operation periods from the environmental assessment see Table 7.2. Table 7.2 Preventive measures of risks Phase Precautionary measures Performer Supervisor Sewage treatment subproject - risk of accidental discharge Dual power supply aims to prevent accidental discharge caused by power failure Establish the necessary preparatory systems or equipment: a surpassing pipeline should be arranged inside the WWTP, so that when an accident has occurred, wastewater can transcend part or all of the structures into the next Grade Ⅰstructure or accident overflow; not less than 2 tanks are set for each unit Preparation process in the wastewater treatment process; during units of Environmental accident maintenance, to ensure that one tank is feasibility Impact disabled, and the rest are still running normally under study, Assessment operating conditions of increasing the load, the impact on preliminary Unit Design the effluent quality is based on the adverse conditions to design, Feasibility phase ensure the size of each tank. The main power equipment tender study and in the WWTP, such as water pumps and sludge pumps specification initial should be provided with 1-2 sets of spare equipment, to Liuzhou examination promptly replace the equipment when an accident Sewage and approval occurs. WWTP should use dual power supply in order to Treatment unit minimize the occurrence of power outage. In order to Co., Ltd. enable wastewater to smoothly flow among the treatment structures, the elevation of each treatment structures must be determined, especially two or more structures in parallel operation; it should be taken into account that when a structure fails, the remaining structures have to bear all traffic situations. Therefore, sufficient room must be kept to determine the elevation, to prevent the occurrence of gushing phenomenon due to not enough

103 LZEMP II - Restructured Project

Phase Precautionary measures Performer Supervisor water head, thus affecting the normal operation of such structures. WWTP in the design should be equipped with rainwater pipe, which can discharge rainwater in a timely manner to the stormwater treatment system, in order to avoid waterlogging accidents and environmental pollution. The outlet pipe of the WWTP should be higher than the flood stage of Tuwei River, and it can smoothly drain. Strictly standardize operations: the probability of a WWTP that cannot discharge wastewater according to standard is small, and this can be completely prevented as long as strengthening management. To this end, the WWTP needs to develop operation and management procedures for WWTP units, post responsibility system, regulations concerning rewards and disciplinary sanction and other rules and regulations, to achieve standardized and institutionalized management of the WWTP; Liuzhou Local operators must be certified before work, and strictly Sewage environmental O & M implement operation and management regulations, to Treatment protection maximize controlling the chance of accidental discharge Co., Ltd. bureau of wastewater caused by operator error factors. Develop a timely treatment plan for accidents: Develop contingency plans for handling accidents, establish an accident handling mechanism, and implement the responsibilities of various parts, each job and operation and management personnel; once there is an accident, take timely actions and notify the environmental protection, municipal and water management departments for troubleshooting in the shortest time. 7.4 Investment estimation for environmental mitigation measures The Restructured Project of LZEMP II itself is an environmental building project. To prevent and control potential secondary pollution during construction and operation of the project, through feasibility study and Environmental Impact Assessment, the investments for mitigation of adverse environmental impacts have been taken into account. After the feasibility study and Environmental Impact Assessment consulting sectors communicated with each other, these investments have been considered among the total cost of the project. The environmental investment estimates for each sub-project are shown in the following table. Table 7. 3 Environmental investment budget for Baisha WWTP Ⅱ

Investment amount Investment project (RMB 10000) Noise, dust prevention and control measures 10 One-o Co ff Construction wastewater, domestic wastewater of nst 20 enviro construction workers and soil and water loss control ruc nment Construction waste and domestic garbage disposal tion 15 al fees per protec Environmental Monitoring 6 iod tion Environmental Supervision 5 invest Op Noise prevention and control of blowers, wastewater ment 20 era pumps, sludge pumps and other mechanical equipment

104 LZEMP II - Restructured Project

tion Construction of the sludge treatment system 1563 per Greening 52.8 iod Construction of the odor collection system 200 Environmental Impact Assessment, and environmental 35 acceptance monitoring upon completion Total 1926.8 Operation of environmental protection facilities during protection period (environmental monitoring, sludge treatment, preventive measures for 1.10 million/year environmental risks and maintenance of other environmental protection facilities)

Table 7.4 Environmental investment budget for Longquanshan WWTP Ⅲ

Investment amount Investment project (RMB 10000) Noise, dust prevention and control measures 5 Construction wastewater, domestic wastewater of 20 One-o construction workers and soil and water loss control Co ff Construction waste and domestic garbage disposal nst 15 enviro fees ruc nment Environmental Monitoring 6 tion al per Environmental Supervision 5 protec iod Noise prevention and control of blowers, wastewater tion 18 invest pumps, sludge pumps and other mechanical equipment ment Construction of the sludge treatment system 388 Greening 127 Environmental Impact Assessment, and environmental 35 acceptance monitoring upon completion Total 619 Operation of environmental protection facilities during protection period (environmental monitoring, sludge treatment, preventive measures for 1.00 million/year environmental risks and maintenance of other environmental protection facilities) 7.5 Environmental monitoring plan 7.5.1 Monitoring purposes and monitoring agency Environmental monitoring includes two phases, that is, construction period and operation period of the project; its purposes are to comprehensively and timely grasp the pollution dynamics of the proposed project, understand the degree of changes in the environmental quality of the project construction area arisen form the project building, the scope of influence, and the environmental quality dynamics during the operation period, feed back information to competent authorities timely, and provide a scientific basis for environmental management of the project. Environmental monitoring during construction period and operation period is undertaken by the project contractor or the Environmental Monitoring Station commissioned by the operator, of the city where the project is located, and the undertaking units are certified national environmental quality monitoring units, with complete equipment and rich technical strength, and can well complete the environmental monitoring tasks undertaken.

105 LZEMP II - Restructured Project

According the predicted results of environmental impact, the sensitive concerns where contamination may be obvious are regarded as monitoring points, the pollution during the project construction and operation periods is tracked and monitored, and the content of monitoring covers the noise, air and surface water with large environmental impact. Monitoring factors are determined based on the characteristic factors of engineering pollution. The monitoring and analysis methods for respective projects in the Technical Specifications for Environmental Monitoring promulgated by the State Environmental Protection Administration are adopted. The national standards confirmed for Environmental Impact Assessment of each subproject are implemented as the evaluation criteria. 7.5.2 Environmental monitoring plans and budgets for construction period and operation period Environmental monitoring plans and budgets of the subprojects during construction period and operation period are shown in Table 7.5 and 7.6. Table 7.5 Environmental monitoring plan and budgets for Baisha WWTP II Unit Annual Monitoring Monitoring Monitoring Monitoring Monitoring Phase price cost element place item frequency agency (RMB) (RMB) Pollution Equivalent 1m outside source of continuous A 960 960 boundary One time in Construction Noise sound level construction, period Surrounding Equivalent 720 720 Acoustic 2 days/time sensitive continuous A environment point sound level Subtotal 1660 An upwind 2560 10240 H2S control point 2560 10240 and four NH3 1 Exhaust gas downwind time/season, 2560 10240 monitoring Odor 2 days/time points at concentration boundary 2080 8320 Qualified pH, COD , SS, 1 Water inlet Cr monitoring Wastewater BOD , NH -N, time/season, and outlet 5 3 unit TN, TP 2 days/time Operation Equivalent period 1 time/year, 2 Noise Boundary continuous A 960 960 days/time sound level Leaching toxicity Sludge Sludge outlet test(As, Hg, 1 time/year 980 980 PB. Cr, Cd, Cu, Zn) COD , Total —— 10 treated water Cr Phosphorus, Online Wastewater discharge Ammonia monitoring outlet nitrogen Subtotal 40980

106 LZEMP II - Restructured Project

Table 7.6 Environmental monitoring plan and budgets for Longquanshan WWTP Ⅲ Unit Annual Monitoring Monitoring Monitoring Monitoring Monitoring Phase price cost element place item frequency agency (RMB) (RMB) Pollution Equivalent 1m outside source of continuous A 960 960 boundary One time in Construction Noise sound level construction, period Surrounding Equivalent 720 720 Acoustic 2 days/time sensitive continuous A environment point sound level Subtotal 1660 An upwind 2560 10240 H2S control point 2560 10240 and four NH3 1 Exhaust gas downwind time/season, 2560 10240 monitoring Odor 2 days/time points at concentration boundary 2080 8320 Qualified pH, COD , SS, 1 Water inlet Cr monitoring Wastewater BOD , NH -N, time/season, and outlet 5 3 unit TN, TP 2 days/time Operation Equivalent period 1 time/year, 2 Noise Boundary continuous A 960 960 days/time sound level Leaching toxicity Sludge Sludge outlet test(As, Hg, 1 time/year 980 980 PB. Cr, Cd, Cu, Zn) COD , Total —— 10 treated water Cr Phosphorus, Online Wastewater discharge Ammonia monitoring outlet nitrogen Subtotal 140980 7.6 Reporting System of Environmental Management Plan The project during construction period and operation period has impacts on the environment, so, for the characteristics of environmental impacts during the construction and operation periods, appropriate environmental protection measures are respectively taken to reduce various impacts to the extent acceptable. In order to ensure that environmental measures can be given play to effectively, an environmental management and monitoring procedure is worked out. World Bank Loan Project management office will track and report the monitoring of environmental measures on the basis of fulfilling its project management functions. This chapter describes general environmental measures and the responsibilities of related units. World Bank Loan Project management office is responsible for tracking and reporting the implementation of environmental monitoring measures for the project. (1) Information exchange Necessary exchange of information is conducted among different departments and different

107 LZEMP II - Restructured Project positions within the organization as required by environmental management, and the organization also informs relevant information to external organizations (relevant parties, the public, etc.). Internal information exchange can be carried out by meetings, internal presentations and other means, but there must be a formal monthly meeting, and all the information exchanges should be documented and archived. External information exchange is carried out every six months or once a year, and the information exchange with cooperative units must be recorded and archived. (2) Records In order to effectively run the environmental management system, the organization must establish a sound recording system, and record the following aspects: Environmental staffing of the Project Employer and construction contractors, the measures taken to mitigate the environmental impacts during construction period and operation period, the implementation and effects of environmental management training, environmental monitoring data during construction period and operation period, environmental nuisance incidents and handling, and social supervision situations. (3) Report Contractors, project supervision unit and project management office during project implementation should record the project progress, the implementation of management plans, the results of environmental quality monitoring and report timely to the authorities concerned. The purpose is to ensure that relevant requirements and measures of the environmental management plans can be implemented, and to identify problems timely, to analyze and summarize, in order to control the adverse environmental impacts in the follow-up work of the project. Mainly including the following three parts: 1) The supervision unit and contractors make detailed records on the implementation of environmental management plans and measures in the monthly supervision reports and report promptly to the project management office; 2) The monitoring unit takes charge of monitoring according to the monitoring plan, makes a brief explanation to the data, describes the existing problems and non-compliance phenomena, analyzes the causes and recommends corrective measures and summarizes the environmental impacts into monthly supervision reports; 3) The prepared project progress reports (such as monthly, quarterly and annual reports) must include the implementation of environmental management plans, the summarized periodic reports of supervision and monitoring departments, the implementation results, existing problems and corrective measures and so on, and if necessary, include resident complaints and solutions; The annual EMP implementation report of the project must be completed and submitted to the World Bank before March 31 in the following year. EMP implementation report can include the following main elements: 1) Implementation of Environmental Management Plan: What happens to the environmental management system, the main content of this phase of construction, the implementation of

108 LZEMP II - Restructured Project mitigation measures, existing problems and their causes, and corrective measures for the next step 2) environmental monitoring results and their descriptions, existing problems and their causes, and recommended corrective measures 3) implementation of training programs, existing problems and their causes, and recommended corrective measures; 4) whether there is a public complaint; if so, record the main content, solution and public satisfaction of the complaint; EMP implementation plan for next year. Project Employer during the project implementation will require the project contractors, project supervisors and environmental monitoring agency to report actually emerging environmental pollution accidents during various phases of the project implementation and the processing situations in a timely manner to the Project Employer and the local environmental protection bureau. Under normal circumstances, the construction supervisors in the preparation of monthly construction supervision report will truthfully reflect the content of environmental management plan; in addition, the Project Employer and the environmental supervision engineers of the supervision agency every half year must report the implementation of the periodically prepared environmental management plan to the environmental protection department, and the project management office will report to the World Bank. 7.7 Environmental Management Training Program Environmental capacity-building training is one of the technical support components of the project. In order to ensure the environmental management work is smoothly and effectively carried out, the staffs of the Project Employer/Construction Unit, operating units, competent authorities, contractors, project supervisors, local project management office, Environmental Protection Bureau and other relevant parties are required to be trained with regard to environmental management plan and other relevant knowledge and skills, and different training should be also done for different positions. The training objects of environmental training of the project includes the staffs of the contractors and their environmental protection members at the construction site, team leaders, supervising engineers, Employer unit, operating units and other environmental management personnel. The specific environmental training program for the project is shown in Table 7.7: Table 7.7 Project environmental training program Time Number of Cost (RMB Target group Content (day) persons 10000)

Mitigation measures in the Environmental Management 2 persons Contractors and Plan during construction, each their environmental 4 combined with job training in construction staffs and team 10 terms of environmental section leaders at protection and safety construction sites Simple monitoring methods and 2 persons 1 control measures for noise each

109 LZEMP II - Restructured Project

during construction (self-test) construction section Measures and requirements relating to the environmental 1-2 persons management plan; each construction-related 1 construction environmental regulations, section Supervision construction planning, 5 engineers supervision rules Ambient air monitoring and 1-2 persons control technology, noise each monitoring and control 1 construction technology section

1 Measures for the environmental management plan during operation period, and operation and maintenance of environmental protection facilities 2. Project management procedures and reporting Employer mechanisms Unit/operating unit 3. Monitoring standards, testing and its methods, sample transport, Several 3 10 environmental data quality control, use of management equipment, etc. personnel 4. Environmental risk contingency: impacts of potential leakage and spillovers on the environment and personal bodies, emergency response procedures, and location and use of facilities, etc. Total / 10 25

8 Conclusions of Environmental Assessment (1) Implementation of this project will further accelerate the integrated environmental management of Liuzhou city areas and the construction of urban environmental infrastructure, and it is of great significance for protecting the water quality of Liujiang River, and promoting the coordinated development of society, economy and environment. (2) Site locations for the two subprojects are reasonable in the overall urban planning and the regional detailed controlling planning. (3) The objective that the centralized treatment rate of wastewater in Liuzhou should reach 85% or more proposed by the Notification on issuance of the task decomposition scheme for construction projects of urban wastewater and domestic garbage treatment facilities in Guangxi Zhuang Autonomous Region (GZF [2008] No.27) is implemented in the project. (4) After completion of the project, the reductions of wastewater into the surface water bodies: COD15768t/A BOD 6570t/A SS 9198 t/a, NH3-N 1116.9 t/A TP 178.9 t/A, so the water quality of

110 LZEMP II - Restructured Project

Liujiang River can be effectively protected. Through public participation and information publicity, after a questionnaire survey analysis, the following conclusions on the project construction are drawn: the public have a full analysis and recognition on the good environmental benefits generated by the project implementation. The environmental issues that may be generated from the project implementation, and the proposed solutions are required to be better designed and reflected in the overall report, and these suggestions and opinions are given a high priority and adopted by the Environmental Impact Assessment Unit in the change process of the overall report. Overall, the positive benefits after the project is completed will be outstanding; the project construction is in line with the guidelines of our social, economic, environmental coordinated development, and in line with the principles of Environmental Impact Assessment; under the premise of the implementation of pollution control measures presented in the Report in accordance with the "three-simultaneous" requirements for environmental protection, the resulting negative effects can be greatly reduced, and the environmental benefits of the project will be much more than the negative environmental benefits, so the project construction is of environmental feasibility.

111