环评证书号：国环评证乙字第3217号



World Bank Financed

Environment Improvement Project

In Panzhihua City, Sichuan Province

Environmental Impact Assessment

Chengdu Hydropower Investigation Design & Research Institute of

China Hydropower Engineering Consultant Group Corporation

October, 2005

World Bank Financed

Environment Improvement Project

in Panzhihua City, Sichuan Province

Environmental Impact Assessment

Chengdu Hydroelectric Investigation Design & Research Institute of

China Hydropower Engineering Consultant Group Corporation

Preface

Panzhihua City is an important industry base of steel vanadium, titanium and energy in China. Industrial construction is put in the first place while urban construction lags behind relatively in the past. In order to build Panzhihua City into a modernized metropolis, the urban construction process must be accelerated and the urban environment, improved. The environment improvement project which World Bank loan will be used is just to meet the demand of Panzhihua City development.

The whole project consists of riverbank slope protection, upper section of Binjiang Road, interceptor and trunk sewers, scenery project and last section of Bingren Road. The four subsections are named as environmental improvement project along the Jinsha River. The gross investment budget of the project is RMB 1220.65 millions Yuan (nearly $ 147.42 millions), and the budget of RMB 577.94 millions Yuan (nearly $ 69.80 millions) will be from the World Bank loan.

The construction of the project will improve the urban environment infstructure of Panzhihua City and improve the landscape along the Jinsha River. It can also provide an essential basis for continued urban development and living environment, and lay a solid foundation for turning Panzhihua into a beautiful city. At the same time, it can improve traffic condition of the city, irmpove the urban zoning, and broaden the developmental space and development potential of the city.

This project is in accordance with the national policies. Based on the relevant laws, rules, policies and the specifications on environmental protection by China National Environment Protection Agency (NEPA) and the stipulations in the Guideline of Environmental Assessment by the World Bank, the environment impact assessment of the project should be carried out. For this reason, Chengdu Hydropower Investigation Design & Research Institute (CHIDI) of China Hydropower Engineering Consultant Group Corporation (CHECC) was commissioned to undertake the EIA of the proposed project by Panzhihua Urban Construction Investment Management Co., Ltd. Based on the analysis of project design files, the EA team carried out an project site survey and collected materials related to the project. According to "Technology Guideline of Environmental Impact Assessment", "Environmental Impact Assessment Specifications of Highway Construction Project" and the World Bank related environment assessment business policies, the project environmental impact pre-assessment report was completed in May, 2005, and submitted to the World Bank delegation for pre-assessment of the project. At the same time, "Environmental Impact Assessment Outline of the Environment Improvement Project in Panzhihua City" was completed. At the request of Sichuan Environment Protection Bureau (SEPB), Sichuan Environmental Engineering Evaluation Center hosted the technical appraisal meeting of the outline on May 18, 2005 in Chengdu. According to opinions and suggestions of the attending representatives and experts, the final edition of the outline was completed in August 2005..

According to the document issued by SEPB and opinions and requirements of the World Bank, the EA team carried out several rounds of site survey and investigation, and entrusted Panzhihua Environment Monitoring Station to monitor the acoustic environment and substrate sludge in the The Jinsha River River supplementally. On the basis of these work, "Environmental Impact Assessment Report of Environment Improvement Project in Panzhihua City" was prepared in October 2005 to submit to the World Bank for project appraisement, and to SEPB for examination.

The compilation of this report have obtained the supports from Panzhihua Urban Construction Investment Management Co., Ltd, related municipal departments of Panzhihua City government, Chengdu Municipal Engineering Design & Research Institute, and Southwest Jiaotong University, as well as guidance from from the World Bank experts. All these helps and instructions are appreciated.

CONTENT

Preface 3

CONTENT 5

1 Overview 8

1.1 Origin of the Assessment 8

1.2 Background of the Project 8

1.3 Objectives of the Assessment 15

1.4 Principle of the Assessment 15

1.5 Basis of the Compilation 16

1.6 Assessment Standards 18

1.7 Assessment Grades 21

1.8 Assessment Factors 22

1.9 Assessment Scope 23

1.10 Assessment Phases and Time Intervals 24

1.11 Objects of Environmental Protection 24

1.12 Assessment Procedure 25

2 Project Description 26

2.1 Basic characteristics of the project 26

2.2 Component of the project 27

2.3 Brief introduction to main part project 28

2.4 Construction planning 32

2.5 Land occupation 35

2.6 Analysis of the project 35

3 Analysis of Alternatives 43

3.1 Comparison of with or without this project 43

3.2 Local route comparison 44

4 Present Status of Environment 50

4.1 Natural environment status 50

4.2 Ecological environment status 52

4.3 Social environment status 56

4.4 Environment quality status 61

4.5 Relativity analysis of the World Bank safeguard policies 67

4.6 Environmental Sensitive Spots 68

4.7 Main environmental problems 71

5 Forecast and assessment on environmental impact 73

5.1 Environmental benefit 73

5.2 Water environment impact 74

5.3 Impact on ambient air quality 77

5.4 Acoustic environment impact 81

5.5 Ecological environment 86

5.6 Soil erosion 86

5.7 Solid waste impact assessment 92

5.8 Social environment 92

5.9 Analysis of environmental risks 93

6 Resettlement 94

6.1 Index of the affected 94

6.2 Objective of resettlement plan 94

6.3 Resettlement principle 95

6.4 Resettlement planning guideline 95

6.5 Resettlement scheme 96

6.6 Environmental capacity analysis of resettlement area 98

6.7 Resettlement planning 99

6.8 Environmental impact analysis 101

7 Environment Protection Measures 103

7.1 Water Environment Protection Measure 103

7.2 Air Environment Protection Measures 104

7.3 Acoustic Environment Protection Measures 106

7.4 Eco-environment Protection Measures 108

7.5 Water and Soil Conservation Measures 108

7.6 Solid Waste Disposal Measures 115

7.7 Social Environment Impact Mitigating Measure 115

7.8 Mitigation Measures of Environmental Impact in Resettlement Areas 117

7.9 Mitigation for Environment Risk 117

7.10 Effect Analysis of Environment Protection Measures 118

8 Environmental Monitoring, Management 123

8.1 Environmental Monitoring 123

8.2 Environmental Management and Supervision 128

8.3 Cost Estimation on Environment Protection 135

9 Public Consultation and Information Disclosure 138

9.1 EIA draft phase 138

9.2 EIA report phase 142

9.3 Information disclosure 153

10 Conclusions and Recommendations 154

10.1 Analysis of project rationality 154

10.2 Assessment conclusion of environmental status 154

10.3 Assessment conclusion of the environmental impact 155

10.4 Recommendations 157

Appendix 1 Trust Deed of EIA of the Proposed Project

Appendix 2 Environmental Protection Declaration and Registration Table

Appendix 3 Reply to the Project Suggestion Report Issued by Sichuan Development and Reform Committee

Appendix 4 Letter of Affirming the Execution Standard of the Proposed Project Environment Impact Assessment

Appendix 5 "The Letter of Affirming the Correlative Construction Contents of Subprojects of This Proposed Project" Issued by Panzhihua Government

Appendix 6 Public Participation Questionnaire (during outline phase)

Appendix 7 Public Participation Puestionnaire (during report phase)

Appendix 8 Environment Improvement Project in Panzhihua City Environmental Impact Assessment outline (Shortening)

Appendix 9 Environment Monitoring Report of Project Area

Appendix 10 Information Disclosure of EIA and the resettlment

Figures：

Figure 1 Map of the Project Geographic Position

Figure 2 Map of master plan in Panzhihua

Figure 3 Overall Plane Layout of the Project

Figure 4 Riverbank slope protection Project Schematic Drawing

Figure 5 Upper Section of Binjiang Road Schematic Drawing

Figure 6 Landscape Project Schematic Drawing

Figure 7 Intercepted Interceptor and trunk sewerss Schematic Drawing

Figure 8 Last Section of Bingren Road Schematic Drawing

Figure9 Map of Surrounding and Monitoring Sites Location

Figure 10 Representative Pictures of Sensitive Spots and Environmental Status

Figure 11 Map of Land Use Plan in Panzhihua City

Figure 12 Layout of Water Supply in Engineering Area

Figure 13 Layout of Drainage in Engineering Area

Figure 14 Layouts of Environmental Protection Measures

Figure 15 Schematic Drawing of Engineering Measures for Water Conservation of Typical Waste Disposal Fields

Figure 16 Schematic Drawing of Plant Measures for Water Conservation of Typical Waste Disposal Fields

Overview

1 Origin of the Assessment

The Environment Improvement in Panzhihua City is a sub-project of Sichuan Urban Developmente Project (SUDP), to be supported by a World Bank (WB) loan. It consists of environmental improvement along the Jinsha River and the construction of the Bingren Road last section. World Bank project task team inspected Panzhihua City on November 20th~28th, 2003, May 31th~June 5th, 2004 and October 18th~27th, 2004, respectively, and subsequently determined the contents of the urban environment improvement project. Sichuan Provincial Development and Reform Commission approved the project in October, 2004. The project will improve the environmental infrastructure of Panzhihua City, improve the living and transportation conditions and provide new space for urban development of the city.

According to the reqirements of the environmental protection laws, regulations, policies and the specifications on environmental protection of China and requirements of the relevant World Bank operational policies, an environment impact assessment (EIA) for the project should be carried out. CHIDI was commissioned by Panzhihua Urban Construction Investment Management Co., Ltd. to undertake the EIA of the proposed project

2 Background of the Project

1 Panzhihua Urban Planning

1 Urban Development Plan

According to the Master Plan of Panzhihua City (1997-2020), the objective of Panzhihua City development is to build a modern city with an industry base related to natural resources in western China, a regional center in the boundary area of Sichuan and Yunnan Province and a garden city with mountain, river and the southern subtropical scene. Three zones are planned for City development, which are the urban centre, urban area and city area. The urban area is aobut 65 km2, from Geliping to the west, Jinjiang Town to the southeast, the foot of Dahei Mountain to the north, and Renhe Town to the south. The city area includes urban district, Miyi and Yanbian Counties with a total of about 7440.4 km2.

The urban center Panzhihua City consists of East District, West District and Central District. The Central District consists of Bingcaogang, Duren, Nongnongping and Panmi sub-district. The urban centre locates in Bingcaogang which has political, economical, cultural, technological, commercial and financial function. The area of the urban centre is about 40 km2 and the population is about 400 to 420 thousand. The west district consists of Geliping, Hemenkou and Taojiadu sub-district. The major functions of the district are energy generation, building material and timber machining. The area is 15～17 km2 and the population is 180~200 thousand. The east district’s functions are railway transportation pivots, material distributing and titanic industry. The planned area of this district is 9～10 km2, with population of 30 to 50 thousand.

According to the urban planning, the area of the control land will be within 60 km2 and the population will reach 1133 thousand by 2010. The GDP will reach 289 hundred million, about twice as the data in 2000. The per capita GDP will be 25.8 thousand. The ratio of primary, secondary and tertiary domain in civil economic is 3:57:40. The industrial structure will optimize constantly.

The proposed project accords with the overall plan of Panzhihua City. It is beneficial for environment and road network improvement, industrial structure adjustment, space distribution optimization and economic development. It is also helpful for improving ecological environment and river scenery along the Jinsha River.

2 Road Traffic Plan

Urban road system consists of express road, primary trunk road, secondary trunk road and sideways. The urban centre will be the core of the road network where roads stretch out along the south and north banks of the Jinsha River and Renhe Stream, forming a network. Roads in the urban area were designed and built according to the actual landform. By 2020 the trunk road in urban centre will reach the length of 465 km and the density of the network will be 7.65 km/km2. The ratio of the land used for road and city square will be 12.54%, the area of per capita land will be 11.58 m2.

The public traffic will be the first choice in urban road system. Network structure will be optimized, and vehicle component will be moderated. By 2020, the total length of the public transportation network would be 219.1 km with the density of the network of 3.65 km/km2.

According to the ‘urban traffic plan of panzhihua city for 2000~2020’, the road G108, S310, S216 will rebuild to second level road. A series second and third level county road will be constructed to communicate to the outside. Centre road plan emphasizes on the rebuilding of Bingren Line, Binjiang Road, Yanze Road, Yanhong Road, Honglan Road, Bingqing Road, Taoshi Line (from 06 bridge to Geliping) and Panmi Line to adapt the development of the Bingcaogang Ⅲ district, the area along the Jinsha River, Yanbian new town and Ertan landscape spot. The traffic road plan will also serve for the Panzhihua Steal factory, Mining Bureau, and Panzhihua Mine Factory. More investment will be used on rebuilding the Jinwu Road, Zonglong Line and Dujin line which form a chain line to adapt the development of the Jinjiang industrial developing district and bring the future economic developing hotspot into the new traffic network.

The project is a component of road traffic plan. The front section of Binjiang Road will connect Jiangnansilu Roads with the constructed Binjiang Road to form a double way in the downtown area. The last section of the Bingren Road is a extension of the front section. This road will connect the future urban centre with the Renhe district. The construction of the last section will strengthen the density of the urban road network and alleciate the pressure which brought by the traffic in urban centre. It will also make positive effect on developing the new urban. It is therefore that the road construction suit for the road traffic plan.

3 The plan of urban water source, water supply and drainage project

According to the plan, the water source of Panzhihua city is surface water which comes from the Jinsha River and the The Yalong River River except for some unit individually. By 2010, the scale of the supply water in urban centre will reach 226 thousand m3/d. Water supply and sewage capacity in urban area of Panzhihua City is listed below.

Water supply and sewage capacity in urban area of Panzhihua City

Table 1-1

|Item | Per capita |Per capita |Popularization ratio |Serving people |Per capita sewage |

| |living water |comprehensive water |for water supply | |capacity |

| |consume |consume |(%) |(10 thousand) | |

| |(L/d) |(L/d) | | |(L/d) |

|Time | | | | | |

|2005 |200～250 |600 |98 |51 |150～200 |

|2050 |300～350 |700 |100 |65 |300 |

Industry waste water should be treated to the required effluent quality before discharge, and the total capacity of the sewage will be controlled. The principle of disposal for urban waste water is to protect the drink water in the near future, then protects the quality of river in the far future. Nine sewage WWTPs will be constructed, such as Geliping, Tanjiadu, Hemenkou-Qingxiangping, Duren, Bingcaogang, Nongnongping, Panmi, Jinjiang and Renhe. The scale of the Bingcaogang sewage WWTP which has already been built is 30 thousand m3/d, while Renhe sewage WWTP, which is under construction, is 20 thousand m3/d.

The interceptor and trunk sewers of this project consists of the first and second grade interceptor and trunk sewers in Qingxiangping sewage WWTP, Wushisi~ Bingcaogang interceptor and trunk sewers and some sub-trunk pipe. To suit for the interceptor and trunk sewers construction, Qingxiangping sewage WWTP is planned to be constructed at the same time (details see Appendix 5).

The scale of the sewage WWTPs in Panzhihua City

Table2-2 Unit ：10 thousand m3/d

|Item |Geliping |Taojiadu |Hemenkou －Qingxiangping |

|PH |6~9 |Coliaerogenes organisms |≤10000 per L |

|COD |≤20 mg/L |Cd |≤0.005 mg/L |

|BOD5 |≤4 mg/L |As |≤0.05 mg/L |

|DO |≥5 mg/L |Cr |≤0.05 mg/L |

|Non-ionic Ammonia |≤0.02 mg/L |Pb |≤0.05 mg/L |

|Nitrate |≤20 mg/L |Hg |≤0.0001 mg/L |

|Nitrite |≤0.15 mg/L |Cyanide |≤0.2 mg/L |

|Petroleum Category |≤0.05 mg/L |Total Phosphorus |≤0.1 mg/L |

|Volatile Phenols |≤0.005 mg/L |Ammonia Nitrogen |≤1.0 mg/L |

Environment Quality Standards Ⅲ for Substrate Sludge

Table 1-2 Unit: mg/kg

|Item |Standard Value Ⅲ |Item |Standard Value Ⅲ |

|Cu |≤400 |Cd |≤1.0 |

|Pb |≤500 |Hg |≤1.5 |

|Zn |≤500 |As |≤30 |

4 Ambient Air Quality

Assessment of air quality adopts class Ⅱ limited value in Ambient Air Quality Standard (GB3095-1996). Details are listed in Table 1-3

Ambient Air Quality Standard

Table 1-3

|Standard |Standard value（mg/m3） |

| |SO2 |TSP |PM10 |NO2 |

|Class 2 |Daily Average≤0.15 |Daily Average≤0.30 |Daily Average≤0.15 |Daily Average≤0.10 |

| |Hour Average≤0.50 | | |Hour Average≤0.15 |

5 Acoustic Quality

According to Standard of Environmental Noise of Urban Area (GB3096-93), in the assessment area, class Ⅳ standard is carried out in both sides 30m±5m range of the road and class Ⅰ is carried out at school, hospital and sanatorium, and class Ⅱ is carried out in other areas. The environmental noise standard value sees Table 1-4.

Environmental Noise Standard for Urban Areas

Table1-4 Unit: LAeq(dB)

|Category |Equivalent Sound Level |Suitable area |

| |Day time |Night time | |

|class Ⅰ |55 |45 |School, hospital and sanatorium |

|Class Ⅳ |70 |55 |In the range of 30m±5m on both sides of the road |

|class Ⅱ |60 |50 |Other areas |

6 Ecological Environment

Standard for the ecological environment is to improve the dwelling environment and to ensure no deterioration of ecosystem integrity and species diversity along the line due to the project construction. The long-term average value of soil erosion quantity of the affected area is adopted as reference. The grading standards for erosion intensity see Table 1-5.

Grading Standards for Water Erosion Intensity

Table 1-5

|Erosion Class |Erosion Modulus [t/(km2·a)] |

|Very Slight Erosion |15000 |

2 Standards for the Discharge of Pollutants

1 Waste water

Standard for wastewater discharge adopted ClassⅠin Sewage Comprehensive Discharge Standard (GB8978-1996). Details see Table 1-6.

2 Air Pollutant

Standard for discharge of air pollutants during construction period adopted class Ⅱ in Integrated Emission Standard of Air Pollutants (GB16279-1996). The standard values see Table 1-6.

3 Noise

Standard for noise during construction period adopted the correlative items in Noise Limits for Construction Site (GB12523-90). Details see Table 1-6.

Standars for Pollutant Discharge

Table 1-6

|No. |Item |Standard |Standard value |

|1 |Water waste |GB 8978－1996class1 |BOD5：≤20mg/L CODCr： ≤100mg/L |

| | | |SS： ≤70mg/L pH：6～9 |

| | | |petroleum：≤10mg/L |

|2 |Air pollutant |GB 16297－96class 2 |TSP：≤1.0mg/m3(Discharges the monitoring density limiting value |

| | | |without the organization) |

| | | |NOX：≤0.12mg/m3(as above) |

|3 |Noise |GB 12523－90 |Excavation ：day ≤75dB night ≤55dB； |

| | | |Structural construction ：day ≤70 dB night ≤55dB； |

| | | |Decorative construction ：day ≤62 dB night≤55dB |

3 Assessment Grades

According to the infection which brought from the project, affirmed by Approval Letter on EIA outline for Panzhihua Environment Improvement Project, the project should compile a report of EIA.

The determination of the EIA Grades is based on the influencing degree and scope. According to the approved outline of EIA, the assessment grades details of each environmental element are listed as followed.

1 Surface Water Environment

The wastewater of the project is far less than 5000m3/d. The major pollutant is SS and organic compound in manufacturing wastewater and living wastewater respectively. The complicated degree of the water quality in both wastewaters is simple. The scale of the surface water belongs to the large scale river. Standard of the water environmental quality adopted class Ⅲ. According to the ‘Technical Specifications for Environmental Impact Assessment—Surface Water Environment’ (HJ/T 2.3-93), the assessment grade for surface water adopted class Ⅲ in the project.

2 Ambient Air

The data of Pi of the main air-pollutants during and after construction of the project is far below 2.5×108 m3/h. The geometry of the construction area belongs to complicated mountainous area. According to the ‘Technical Specifications for Environmental Impact Assessment—Ambient Air’ (HJ/T 2.2-93), the assessment grade for ambient air of the project adopted class Ⅲ.

3 Acoustic Environment

The construction area locates on Grade 2, Grade 3 and Grade 4 region of the ‘Standard of the Environmental Noise in Urban Region (GB 3096-93) respectively. Noise of the environment improvement project along the Jinsha River exists mainly along the project line during construction. The noise pollution would strengthen obviously after the Bingren Road last section is put into operation. According to the Technical Specifications for Environmental Impact Assessment—Acoustic Environment’ (HJ/T 2.2-93), the grade for the acoustical environment impact assessment adopted Class II in the project.

4 Ecological Environment

The prospect project is non-pollute environmental impact project. There is little impact on the biocommunity, territorial environment and physical chemistry character of water and soil during and after the project construction. The influenced scope of the project is less than 20 km2, the biomass and the diversity of the species decrease would be less then 50%. It will not make the species which is in severe danger annihilation. According to the Technical Specifications for Environmental Impact Assessment—Non-pollute Environmental Impact ’, the grade for the ecological environment impact assessment adopted Class III in the project.

4 Assessment Factors

1 Constructional Phase

(1) Acoustic Environment: Leq (A)

(2) Ambient air: asphalt smoke, dust

(3) Surface Water Environment：SS

(4) Ecological Environment: plant, landscape, soil and water loss

(5) Soild Waste: Construction waste

(6) Social Environment: land utilization, resettlement, manufacturing and living condition

2 Operation Phase

(1) Acoustic Environment: Leq (A)

(2) Ambient air：NOx

(3) Surface Water Environment：COD、BOD5

(4) Ecological Environment: landscape, soil and water loss

(5) Social Environment: social economy, living quality.

5 Assessment Scope

According to the scale and layout of the construction, the Assessment Scope is divided into direct and indirect parts influenced by the construction. Areas influenced by the noise and waste smoke mostly locate alone the Panzhihua City Road. In the outline of the EIA, scope of the assessment of the Environmental Impact in the project is listed according to degree of the impact.

1 Surface Water Environment

The scope of the EIA is the urban section of Jinsha River which lies from Geliping to the 1km downstream of the environmental improvement project along the Jinsha River. The total length of the river reach is 54km.

2 Ambient Air

The scope of the assessment is in the range of 200m on both sides of the road and 500m around the construction site which includes process of the concrete.

3 Acoustic Environment

The scope of the assessment is in the range of 200m on both sides of the road, and 200m around the construction site.

4 Ecological Environment

Aquatic ecosystem: same as surface water assessment scope.

Terrestrial ecosystem: In the range of 200m on both bank of the environmental improvement project along the Jinsha River, and in the range of 300m on both sides of the Bingren Road last section, with gross area of 24.99km2.

Water and soil conservation: all the construction sites including permanent and temporary sites and the directly influenced area including constructional road, with gross area of 847.61ha.

5 Social Environment

The scope of the assessment is the whole city, especially the affected areas along the construction line.

6 Assessment Phases and Time Intervals

The information of social economy is based on the data of the year of 2003, and the other information is based on the data of investigation and monitoring in 2004, data from the year of 2000 to 2004 is also used for reference.

Construction phase: Jan. 2006~ Aug. 2008, 2.5 years in all

Initial term in operation phase: 2008

Medium term in operation phase: 2011

Long term in operation phase: 2015

7 Objects of Environmental Protection

1 Objects of Preventive Protection

(1) Strengthen the Environmental management and monitoring in the project. Grasp the status of the environmental quality and pollution condition in time so as to to adopt the appropriate environment protection measure.

(2) Ensure the normal working and living conditions in the construction area. Maintain and improve the living level and living quality of the resettlements. Protect the public health, and prevent infectious disease caused by the construction process by adopting suitable prevention measures.

(3) Improve transportation management in construction period, and prevent the traffic jam which brought by the construction.

2 Goal of Pollution Control

(1) Goal of the water pollution control: Quality of waste water discharge should meet the Grade 1 level of ‘Sewage Comprehensive Discharge Standard’ (GB 8978-1996). Maintain the function of water body along the project. The water quality should meet class Ⅲ of ‘Environmental Quality Standards for Surface Water’. Details are list in Table1-7.

(2) Goal of the air pollution control: Quality of air pollutant should accord with the Class 2 level of ‘Standard of Comprehensive Discharge of Air Pollutant’ (GB 16297-1996). Quality of ambient air should accord with the Class 2 level of ‘standard of Ambient Air’. Decrease the influence of construction dust on residents around. Details see Table1-7.

(3) Goal of the noise control: Noise in construction sites should meet ‘Limit of the noise in constructional field’ (GB 16297-1996). Reduce the influence of noise on the operators and residents. According to the demand of the World Bank, acoustic environment quality for sensitive objects such as school, hospital and sanatorium should adopt class 1 level of ‘Standard of urban noise’ (GB 3096-93), the others adopt class 2 level in the assessment scope. The areas in the range of 30m±5m from the road’s red line should adopt class 4 level. Details are list in Table1-7.

3 Goal for Ecology Reconvering and Harnessing

Pay fully attention to the prevention of new slopes and the construction waste disposal fields. Conserve the soil and water resource by adopting engineering and plant measures. The prevention rate of the construction waste should reach 95%. The land improvement rate of the disturbed area will reach 95%. The plant recover ratio will be higher than 65%. Mitigate and control the effect of the soil erosion caused by construction process, and improve the landscape and ecological environment along the road.

Goal of pollution control of the project

Table 1-7

|Item |Major environmental |Goal of pollution control |

| |factors | |

| | |Construction phase |Operation phase |

|Water environment |SS |≤70 mg/L |≤70 mg/L |

| |pH |6～9 |6～9 |

| |COD |≤100 mg/L |≤100 mg/L |

|Ambient air |TSP（mg/m3） |≤1.0 |≤0.30 |

| |SO2（mg/m3） |— |≤0.15 |

| |NOX（mg/m3） |≤0.12 |≤0.10 |

|Acoustic environment | |Daytime |Night time |Daytime |Night time |

| |Piling | ................
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