1

Sichuan Urban Development Project (SUDP)

Financed by the World Bank Loan

Suining Environmental Improvement Project

(Infrastructure Construction in Xining District )

Environmental Impact Assessment Report

(Draft for Review)

Sichuan Research Institute of Environmental Protection (SRIEP)

August 2005

EA Certificate: GHP Class A No. 3205

Director of SRIEP: Mr. Liao Ji (Senior Engineer)

Deputy Director: Mr. Ye Hong (Senior Engineer)

Chief Engineer: Mr. Chen Daping (Senior Engineer)

Person in charge of the project:

Core Team of EA:

Name

Title

Number of EA Certificate

Work Contents

Signature

Fang Zili

Senior engineer

A32050007

Write Introduction, and Conclusions & Suggestions;

Revise the whole text of the report

Xie Qiang

Engineer

A32050022

EIA, Environmental protection measures and their economic & technical proof

Luo Menghua

Senior engineer

A32050039

Economic gain & loss of EI

Luo Wei

Engineer

A32050035

Physical & social situation, Existing environmental qualities

Tan Ting

Engineer

Environmental management & monitoring plans

Zuo Yuang

Engineer

Public survey, resettlement

Xu Liang

Engineer

Alternatives

Review:

Examination: EA Quality Examination Department of SRIEP

CONTENTS

1.0 INTRODUCTION

1.1 Need for the Project ……………………………………….... (1)

1.2 Objectives and Principles of the EIA ………........................... ()

1.3 Policy, Legal and Administrative Framework ………….…….()

1.4 Standards for the EIA ………………………………………....()

1.5 Category of the EIA

1.6 Scope of the EIA ……………………………………………...()

1.7 Factors of the EIA …………………………………………….()

1.8 Key Points of EIA ……………………………………………..()

1.9 External Environmental Relations and Main Protected

Objects ….…….…………………………………………….. ()

1.10 Pollution Control and Environmental Protection Objectives …………………………………………………... ()

1.11 P Procedures of the EIA ………………...…………………...()

2.0 PROJECT DESCRIPTION AND ANALYSIS

2.1 Project Description ……………………………………………()

2.2 Project Components and Analysis …………………..……..... ( )

2.3 Environmental Impact Characteristics and Mitigation Measures …………………………………………….……….. ()

2.4 Necessity and Rationality of the Project …………………...… ()

3.0 ENVIRONMENTAL SETTING

3.1 Physical Environment ……………………………………... ()

3.2 Socio-economic Environment ……………………..……….()

3.3 Xining District ……………………………………………… ()

3.4 Local Planning of Xining District ………………………….. ()

4.0 SURVEY AND ASSESSMENT OF EXISTING ENVIRONMENTAL QUALITY……………………………... ()

4.1 Environmental Monitoring and Assessment of

Existing Surface Water Quality…….. ……………………… ()

4.2 Environmental Monitoring and Assessment of Existing Quality…………………………………….……………….. ()

4.3 Environmental Monitoring and Assessment of Existing Noise Environment ……………………………………….……. ()

5.0 ENVIRONMENTAL IMPACT FORECAST AND ASSESSMENT………..………………………………………... ()

5.1 Socio-environmental Impact Analysis…. .………..………… ()

5.2 Eco-environmental Impact Analysis….……………………... ()

5.3 Water Environmental Impact Analysis…...……….………… ()

5.4 Air Environmental Impact Analysis…...………….………… ()

5.5 Noise Environmental Impact Analysis… ……….…….……. ()

6.0 ALTERNATIVES

6.1 Alternatives for Road Construction of Xining District ………()

6.2 Alternatives for Embankment Construction of

Guangjiyan River ……………………………………………. ()

6.3 Alternatives for Xingning Road Construction.….……………. ()

7.0 ENVIRONMENTAL PROTECTION MEASURES AND THEIR ECONOMIC AND TECHNICAL PROOF …………………………()

7.1 Measures for Soil & Water Losses Control and Ecological Restoration

7.2 Measures for Water Environmental Protection and Their Proof

7.3 Measures for Air Environmental Protection and Their Proof

7.4 Measures for Noise Control and Their Proof

7.5 Environmental Protection Measures and Cost Estimate

8.0 Resettlement

8.1 Impact Scope and Affected People …………………..…….. ()

8.2 Resettlement Action Plan ……………………………..…… ()

8.3 Environmental Impact of Resettlement …………………….. ()

9.0 ECONOMIC BENEFIT AND LOSS ANALYSIS OF ENVIRONMENTAL IMPACT ……………………….…...…… ()

9.1 Social and Environmental Benefits of the Project …………… ()

9.2 Economic Benefit of the Project ………………..…….…..….. ()

9.3 Economic Benefit and Loss Analysis of Environmental Impact

………………………………………………………………... ()

10.0 PUBLIC PARTICIPATION ……………………………...….....()

11.0 ENVIRONMENTAL MANAGEMENT PLAN AND ENVIRONMENTAL MONITORING SCHEME ………….….()

12. CONCLUSIONS AND SUGGESTIONS

1.0 INTRODUCTION

1.1 Need for the Project

Along the continuous development of the national economy and enlarging regional economic gap, the West China Development, has been initiated by the central government to speed up the development of the economy in western and middle areas of China, as well as to maintain social stability, reduce poverty and promote the balanced development of the national economy.

Suining City is directly under the administration of Sichuan Provincial Government, located in south western China and under the West China Development program. The city is located in the central part of Sichuan Basin, and is the joint between provnical capital Chengdu and one of the four municipalities with a provincial status, Chongqing. The urban center of Suining situates at the confluence of Chuan-e (Sichuan-Hubei) Highway and Mian-yu (Mianyang- Chongqing) Highway. Da-cheng (Dachaun-Chengdu) Railway and Cheng-nan (Chengdu-Nanchong) Expressway go through the city. Such convenient condition of communications makes Suining a transportation hub and an important distributing center in middle Sichuan. Since the reform and opening up policies, socio-economic development has been fast. The population in urban area of Suining City reached 423 200 in the year 2002. And the constructed urban area reached 21.6 km2 from 6.1 km2 in 1985. The whole city has already developed into a regional comprehensive center city.

In 2004, to speed up the urban development of the city, Suining Municipal Committee of CPC and Suining Municipal Government divided the urban area into four administration districts: Jiangdongxin (new area in the east of Fujiang river) District, Nanba Industrial Park, old urban center, and Economic Development Zone. At present, the most part of the old urban center has been constructed, thus few land in the district can be used for new development for meeting the demands of ever-increasing urban population. In industrial parks, most part of the land is planned to develop industries, so lands for other use are relatively small. Therefore, the two areas, Jiangdongxin District and Xining (west of Suining) District, can play a role of carrier to develop the city. Of the two areas, Jiangdongxin District has worse conditions for developing due to lack of infrastructure and lands, and beyond the Fujiang river. So only the area, Xining District has the advantages for development.

It is planned to cover a land area of 3.51 km2, and to have a population of 52 500 in Xining District. As a comprehensive economic zone of the economic development zones, there spread farmlands and few residential quarters in Xining District at present. Because of no traffic network available in the district, it develops slowly. If complete or perfect its traffic condition and infrastructure, rapid development will be achieved in Xining District then.

Xining District lies in the western part of Suining City, belonging to a sub-district under the Master Plan of Suining City. It is separated from the old urban area (urban center) by a canal, and adjacent to Guangde Temple and Wolong Park which are cultural relics at provincial protection level. This district covers an area of 3.2 km2, with a population of 35 000. The land of this district is flat, surrounded by green hills, with Guangjiyan River (a canal) running through. Mild climate, enough rain fall, clear season changes, together make this district a precious place for residence and business.

To sum up, the project of Xining District is very necessary and urgent. This project will also bring more jobs opportunities and incomes to Suining people. After the project is completed, investment and business environment will be improved, as well as the living standard of local people. The poverty problems also will be solved. The Development and Reform Committee of Sichuan Province authorized this project’s construction in October 2004, by the Document CFW No. [2004] 617.

Based on the requirements specified by Environmental Protection Law of the People’s Republic of China, Environmental Impact Assessment Law of the People’s Republic of China, Regulations of Environmental Protection Management for Construction Projects, Order No. 253 issued by the State Council of the People’s Republic of China, and Notice of Strengthening the EA Management Work of the Construction Projects Financed by Loans of International Financial Organizations, HJ [1993] No. 324 issued by State Environmental Protection Administration, State Planning Commission, Ministry of Finance, and People’s Bank of China, the Administration (Commission) of Economic Development Zone of Suining City entrusted Sichuan Research Institute of Environmental Protection* (hereafter SRIEP in short) to conduct the EIA work for Suining Environmental Improvement Project Infrastructure Construction in Xining District) Financed by the World Bank loan.

As soon as receiving the task, SRIEP sent its professionals to conduct the environmental reconnaissance, collect the relevant data, and produce the TOR for the EA of the project in July 2005. In August 2005, the TOR for the EA was reviewed by experts invited by Sichuan EPB, and then proved by Sichuan EPB with the Document of CHJH[2005] No. 344. After the TOR for the EA being proved, SRIEP conducted the monitoring on existing environment of the project area, and collected more relevant data according to the requirements of the TOR for the EA as well as the Document. Finally SRIEP produced the EIA Report of the Project.

1.2 Objectives and Principles of the EIA

According to the characteristics of this project, this project basically is of non-pollution, and the impact upon environment mainly happens in construction phase. During operation phase, pollution happens in the form of traffic noise. For this reason, Objectives and Principles of the Environmental Impact Assessment is decided as follows:

(1) To realize the harmonious development of this district’s infrastructure, nature, economy and environment, to adopt sustainable development strategies.

(2) To assess the feasibility and rationality of this project from environmental protection point of view.

(3) According to environmental assessment, to offer a gist for environment management and protection design in construction phase and operation phase.

(4) According to the principle “ combination of spot, face and line; stressing key point”, to assess with particular emphasis on aiming at different features of construction.

(5) From the angle of economy and technology, to assess the prevention and cure measures for pollution and the feasibility of compensation.

(6) According to the features of this project, to use analytical method and simple numeration to give prominence to the positive benefit of environment improvement, while doing the assessment.

1.3 Policy, Legal and Administrative Framework

1.3.1 Laws and Regulations

(1) Environmental Protection Law of the People’s Republic of China;

(2) Environmental Impact Assessment Law of the People’s Republic of China;

(3) Law of the People’s Republic of China on Urban Planning

(4) Law of the People’s Republic of China on the Prevention and Control of Atmospheric Pollution;

(5) Law of the People’s Republic of China on the Prevention and Control of Water Pollution;

(6) Law of the People’s Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste;

(7) Law of the People’s Republic of China on the Prevention and Control of Environmental Noise Pollution;

(8) Law of the People’s Republic of China on the Conservation of Relics;

(9) Law of the People’s Republic of China on Flood Prevention and Control;

(10) Law of the People’s Republic of China on Water and Soil Conservation.

1.3.2 Other Relevant Laws and Regulations of Environmental Protection

(1) Regulations of Environmental Protection Management for Construction Projects, Order No. 253 issued by the State Council of the People’s Republic of China;

(2) Tentative Management Regulation on Scenic Spots, and Detailed Implementing

Measures for Tentative Management Regulation on Scenic Spots (1985.6.7)；

(3) River Course Management Regulation of the People’s Republic of China;

(4) Decisions of the State Council on a Number of Problems of Environmental Protection, GF [1996] No.31 issued by the State Council of the People’s Republic of China;

(5) Notice of Further Promoting the Construction of Green Corridors throughout the Country, GF [2001] No.31 issued by the State Council of the People’s Republic of China;

(6) Decision of Sichuan Provincial People’s Government on Strengthening the Work of Environmental Protection, CFF [1996] No.142;

(7) Notice of Effectively Control of Urban Flying Dust, HF [2001] No.56 issued by State Environmental Protection Administration and the Ministry of Construction;

(8) Some Suggestions on Strengthening the Environmental Protection Management for Construction Projects in West China Development, HF [2001] No. 4 issued by State Environmental Protection Administration ;

(9) Notice of Strengthening the EA Management Work of the Construction Projects Financed by Loans of International Financial Organizations, HJ [1993] No. 324 issued by State Environmental Protection Administration, State Planning Commission, Ministry of Finance, and People’s Bank of China;

(10) National Compendium on Eco-environmental Protection, November 26, 2002, by the State Council of the People’s Republic of China;

1.3.3 Technical Codes or Specifications

(1) Technical Guidelines of EA (HJ/T2.1~2.3-1993);

(2) Technical Guidelines of EA (Acoustic Environment) (HJ/T2.4-1995);

(3) Technical Guidelines of EA (Non-pollution Eco-environment) (HJ/T1.9-1997);

(4) Specifications of Environmental Impact Assessment for Highway Construction (Tentative), Ministry of Communications, JTJ005-1996;

(5) Operational Directory for World Bank Financed Projects —— Environmental Assessment (OD4.01) issued by W. B. in July 1992;

(6) Data Collection of EA (W. B. Document No. 139, October 1993).

(7) Operational Directory for World Bank Financed Projects — Natural Inhabitation (OD4.04);

(8) Operational Directory for World Bank Financed Projects — Cultural Property (OD4.11);

(9) Operational Directory for World Bank Financed Projects — Non-voluntary Resettlement (OD4.12);

1.3.4 Data Relating to the Project

(1) Written Reply to the Proposal of Sichuan Urban Development Project (SUDP) Financed by W. B. Loan, CFGW [2004] No. 617 by the Development & Reform Commission of Sichuan Province, October 10, 2004;

(2) Letter of EIA Task Entrustment for Suining Environmental Improvement Project (Infrastructure Development in Xining District of Suining City);

(3) Proposal of Suining Environmental Improvement Project (Infrastructure Development in Xining District of Suining City), Sichuan Province Financed by W. B. Loan;

(4) Urban Master Plan of Suining City, and Detailed Controlled Planning of Xining District of Suining City;

(5) Relevant Data of nature, socio-economy, and eco-environments in the project area.

1.4 Standards for the EIA

1.4.1 Ecological Environment

As a criteria or requirement, the proposed actions will not change the existing situation of soil erosion, and will not cause any new geological disaster. The classification of soil erosion is given in Table 1-1 below.

Table 1-1 Standard for the Classification of Soil Erosion

Class

Erosion level

Erosion modulus (t/km2·a)

A

Slight erosion (no obvious erosion)

< 500

B

Light erosion

500 ~ 2500

C

Median erosion

2500 ~ 5000

D

Heavy erosion

5000 ~ 8000

E

Extreme erosion

8000 ~ 15000

1.4.2 Standard for Water Quality

The Category C of Environmental Quality Standard for Surface Water (GB3838-2002) is applied for assessing local surface water. The assessment parameters and their standard values are shown in Table 1-2.

Table 1-2 Water Quality Standard for the EA

Parameter

Standard value range

pH

6~9

CODCr

≤20

BOD5

≤4

DO

≥5

NH3-N

≤1.0

Petroleum & derivatives

≤0.05

Ar-OH (Volatile phenols)

≤0.005

Class A of Integrated Wastewater Discharge Standard (GB8978-1996) is used for assessing the wastewater in construction phase as well as operation phase. The standard values of 5 parameters are shown in Table 1-3.

Table 1-3 Wastewater Discharge Standard

Standard

pH

SS

NH3-N

CODCr

Petroleum & derivatives

Class A of Integrated Wastewater Discharge Standard (GB8978-1996)

6~9

≤70

≤15

≤100

≤5

* The unit of all the parameters in the Table is mg/L, except pH.

1.4.3 Standard for Ambient Air Quality

As the project area is a mixing area of residence, commerce, traffic, culture and education, so it belongs to the Category B of ambient air quality. The Class B of Ambient Air Quality Standard, (GB3095-1996) is used for the assessment. While the Class A of Ambient Air Quality Standard, (GB3095-1996) is used for the assessment of scenic or historic sites. The standard values are shown in Table 1-4.

The Class B of Integrated Emission Standard for Air Pollutants, (GB16297-1966) is used for assessing waste gas emission in the period both of construction phase and operation phase. The limits of 3 parameters are shown in Table 1-5.

Table 1-4 Ambient Air Quality Standard

NO2

TSP

SO2

Time

Class A

Class B

Class A

Class B

Class A

Class B

Daily average

0.08

0.12

0.12

0.30

0.05

0.15

1-hour average

0.12

0.24

0.15

0.50

Note: Unit: mg/m3

Table 1-5 Waste Gas Emission Standard

Standard

SO2

NO2

TSP

Limit value of fugitive emission of Integrated Emission Standard for Air Pollutants

0.40

0.12

1.0

Note: 1. Unit: mg/m3.

2. Values from Table 2 of Integrated Emission Standard for Air Pollutants.

3. Control points are set at 2 ~ 5 meters upwind of the fugitive emission sources, while monitoring points are set at 2 ~ 5 meters downwind of the emission sources.

1.4.4 Standard for Noise

During the project construction, Boundary Noise Limits for Construction Site (GB12523-1990) is used, see Table 1-6. For regional noise of Xining Sub-distric, Category B of Urban Regional Noise Standard (GB3096-1993) is adopted; while Category D of the standard is adopted for both sides of road, see Table 1-7.

Table 1-6 Boundary Noise Limits for Construction Sites

Construction phase

Main noise source

Limit value, LAeq (dB)

Daytime

Nighttime

Earthwork

Bulldozer, excavator, loading and unloading machine, etc.

75

55

Piling

Piling machine, etc.

85

Construction is prohibited

Structure

Mixing machine, vibrating needle, electric saw, etc.

70

55

Decoration

Crane, lifting machine, etc.

65

55

Table 1-7 Ambient Noise Standard

Category

Equivalent sound level, LAeq (dB)

Daytime

Nighttime

B

60

50

D

70

55

1.4.5 Standard for Sediment

Standard for Pollutants Control in Sludge Used for Farming, (GB 4284-1984) is adopted to assess the heavy metals in sediment of river. The detailed information is given in Table 1-8. At the same time, Standard for Identifying Hazardous Substances — Leached Toxicity Identification, GB 5085.3-1996 is used for analyzing harmful substances in sludge or sediment.

Table 1-8 Standard Values and Assessment Parameters

Parameter

Maximum allowable value

pH<6.5

pH>6.5

Cu

250

500

Zn

500

1000

Pb

300

1000

Cr

600

1000

Hg

5

15

1.5 Category of the EIA

1.5.1 Eco-environment

The project area is in Xining District of Suining City. The construction of the project will affect the local ecological environment, such as vegetation, etc. As the affected area is at the both sides of road construction within 300 m each, so the affected area is much less than 20 km2. The project construction will not obviously affect the biodiversity or damage the vegetation due to no rare and precious animals and plants in the area. And the physical and chemical properties of surface water will also not be obviously affected in the process of project construction. Therefore, the Category C will be used to assess the bio-environmental impact according to《HJ/T19-1997》.

1.5.2 Ambient Air

The impact of the project on ambient air occurs mainly in construction phase, as the major pollutant is flying dust. By calculation, the equal-standard value of emission (P) is much less than 2.5(108 , so the Category C will be used to assess the air environment.

1.5.3 Surface Water

The impact of the project on surface water occurs mostly in construction phase. The major sources of water pollution are production/construction wastewater and domestic/living wastewater. They are in small quantity and have a simple composition. After the completion of the project, wastewaters will be intercepted. So the environmental quality of local surface water (Category C water body) will improve at certain degree. According to 《HJ/T2.3-93》, the Category C will be used to assess the surface water environment.

1.5.4 Noise

The project area falls into Category B of Urban Regional Noise Standard (GB3096-1993). The number of affected people will not change so much before or after the project implementation. Category C will be used to assess the impact on acoustic environment according to《HJ/T2.4-1995》.

1.6 Scope of the EIA

The scope or range of environmental impact assessment is given in Table 1-9.

Table 1-9 Scope of the EIA

Environmental attribute

Scope or range

Socio-economic environment

Socio-economic development and resettlement in the directly affected project area of 3.51 km2 , and its surrounding areas

Eco-environment

Road construction route and its both sides with a width of 300 m, and some area used for road construction

Acoustic environment

Both sides of the road route, each has a width of 200 m from the central line of road

Air environment

Both sides of the road route, each has a width of 200 m from the central line of road

Water environment

Guangjiyan River and the segment of Fujiang River in the urban center of Suining

1.7 Factors of the EIA

1.7.1 Eco-environment

Soil and water losses, vegetation and land use

1.7.2 Socio-cultural & Economic Environment

Society, economy, living standard, land acquisition and resettlement, human health, historic and cultural sites, public opinions

1.7.3 Water Environment

Factors or parameters for assessing the current situation: pH, CODCr, BOD5, petroleum & derivatives, DO, NH3-N, Ar-OH (Volatile phenols)

Forecasting factor: CODCr

1.7.4 Air Environment

Factors or parameters for assessing the current/present situation: PM10, TSP, SO2, NO2

Forecasting factor: TSP (in construction phase)

1.7.5 Acoustic Environment

Construction noise, traffic noise in operation phase.

1.8 Key Points of EIA

Based on the further analysis of project as well as the proof of environmental protection measures, acoustic/noise environment, socio-environment, eco-environment and air environment will be the key points for assessment in construction phase, while regional acoustic/noise environment and socio-economic environment, especially the positive benefit of social environment, will be the key points for assessment in operation phase.

1.9 External Environmental Relations and Major Protected Objects

1.9.1 External Environmental Relations of the Project

The project area is located in Xining District of Suining City. It is in the west of urban center of Suining, being under the administration of economic & technical development zone. The vicinities of the project area are as follows:

East: 100 m from the urban center (old urban area);

West: Adjacent to Xining Township;

North: Near Guangde Temlpe (70m far) and Wolong Lake Park.

1.9.2 Major Environmental Protection Objects

The major objects of environmental protection of the project are given in Table 1-10 below.

Table 1-10 Major Environmental Protection Objects

Environmental attributives

Protected object

Location

Requirements

Eco-environment

Guangde Temple Scenic Area, at provincial conservation level

West side of 4th Road

Landscape and vegetation of Guangde Temple can not be damaged.

Vegetation and water & soil conservation of side slopes along the roads

Entire roads

Vegetation coverage can not decrease and soil erosion intensity can not increase in Xining District and along Xingning Road

Ambient air

Existing residential quarters in Xining District, and belt area along Xingning Road

Entire roads

(1) Air quality Existing residential quarters in Xining District and along Xingning Road will get to Class B of the Ambient Air Quality Standard

Guangde temple and Wolong Lake Park

West side of 4th Road

(2) Air quality at Guangde Temple and Wolong Lake Park will get to Class A of the Ambient Air Quality Standard.

Noise

Guangde Temple

West side of 4th Road

Meet the noise requirement of scenic spots

Wolong Lake Park

West side of 4th Road

Meet the noise requirement of scenic spots

Xining Township Middle School

South side of 2nd Road

Teaching environment

Dormitories of Chuanzhong Oil & Gas Company

East side of Erjinggou segment of 2nd Road

Residential environment

Surface water

Guangjiyan River, and the segment of Fujing River in the urban area of Suining

Water quality will get to Category C of Environmental Quality for Surface Water.

Category B drinking water source protection area of Nanbeiyan River

Water quality will get to Category C of Environmental Quality for Surface Water.

Social

environment

Living level of relocated people

Living level/standard of relocates will not descend.

1.10 Objectives of Pollution Control and Ecological Protection

(1) Control and mitigate soil erosion (water and soil losses) caused by the damage of ground cover vegetation and soils in the process of project construction so as to protect the ground cover vegetation as well as local eco-environment.

(2) Solve socio-economic problems aroused by the project construction; Local environmental quality will not be substantially affected by the project construction.

(3) Quickly recover or restore the vegetation that is damaged by the project construction so as to mitigate soil erosion (water and soil losses) in the project area.

(4) Strengthen the management of construction activities so as to prevent flying ash pollution on air over the local area.

(5) Ensure the emission standard attainment for all the pollutants.

1.11 Procedures of the EIA

The procedures of the environmental impact assessment of the project is give in Figure 1-1 below.

2.0 PROJECT DESCRIPTION AND ANALYSIS

2.1 Project Description

According to the Master Plan of Suining City, the highlight of “Recent Urban Development” is to evacuate partial population of urban center, and to develop Beiban, Qujiagou and Liutongba (Xining District). At present, in Xining District spread large area of farmland and few industrial enterprises. In 2005, the construction of Sui-yu Express Railway is nearly its end. Xining District faces a new era of development. As a new development area of the city, Xining District will play an important role in evacuating partial population of urban center, developing local tourism in which Guangde Temple – Wolong Park are of the main scenic spots, and speeding up the economic development of the whole city. The proposed Suining Environmental Improvement Project (Infrastructure Construction in Xining District of Suining City) is located in the western part of the urban area of Suining City. Figure 1 of Annex shows its geographical location.

2.1.1 Property of Project

New construction. One of the municipal works projects in Sichuan Province funded by the World Bank loan.

2.1.2 Scale of Project Construction

Twenty-one roads with a total length of 27.16 km and 9 river bridges will be constructed. The proposed Xingning Road has a total length of 8.52 km. River channel with a total length of 4.73 km will be rehabilitated or trained. Drainage pipes, including stormwater drains and sewers, have a total length of 21 km respectively, will be constructed. The total building demolition will have a floor area of 143 420.78 m2. The project components and their major environmental issues are shown in Table 2-1.

Table 2-1 Project Components and Major Environmental Issues

Project

Component

No.

Width (m)

Length (km)

Road hierarchy /bridge load grade

Property of construction

Major environmental issues

Main project

Roads

1

40

3.95

Trunk road, Grade B

New construction

2

30

3.69

Sub-trunk road, Grade B

Extension

In construction phase：

1. Aggravation of soil erosion;

2. Impacts of noise, flying dust, asphalt smoke, and wastewater on the environment;

3. Impact on human health.

4. Impact on vegetation coverage and water & soil conservation;

In operation phase:

1. Impact of resettlement on residents’ living quality;

2. Impact on local socio-economy;

3. Positive ecological and environmental benefits.

3

24

2.75

Sub-trunk road, Grade C

New construction

4

20

2.0

Branch road, Grade B

Extension

5

24

1.71

Sub-trunk road, Grade C

Extension

6

20

1.14

Sub-trunk road, Grade B

New construction

7

20

1.57

Sub-trunk road, Grade B

New construction

8

30

1.51

Sub-trunk road, Grade B

New construction

9

20

2.33

Sub-trunk road, Grade B

New construction

10

30

1.17

Sub-trunk road, Grade B

New construction

11

16

0.66

Branch road, Grade B

New construction

12

16

0.35

Branch road, Grade B

New construction

13

16

1.1

Branch road, Grade B

New construction

14

20

0.31

Branch road, Grade B

New construction

15

20

0.82

Branch road, Grade B

New construction

16

16

0.35

Branch road, Grade B

New construction

17

16

0.34

Branch road, Grade B

New construction

18

14

0.43

Branch road, Grade B

New construction

19

16

0.45

Branch road, Grade B

New construction

20

12

0.32

Branch road, Grade B

New construction

21

20

0.22

Branch road, Grade B

New construction

Xingning Road

24

8.52

Sub-trunk road, Grade C

New construction

Bridges

1#

30

56 m

Grade A

New construction (Quhe river)

2#

40

29 m

Grade A

New construction

(urban center)

3#

24

28 m

Grade A

New construction

4#

20

28 m

Grade A

New construction

5#

40

29 m

Grade A

New construction

6#

30

28 m

Grade A

New construction

7#

24

28 m

Grade B

New construction

8#

30

28 m

Grade A

New construction

9#

30

34 m

Grade A

New construction

Auxiliary project

River training

Rive channel training/rehabilitation of Guangjiyan

River with a length of 4.73 km

New construction

Sewers

Trunk sewers of 21 km, with diameter of d300 ~ d800, and berried depth at starting point of some 3.0 m.

New construction

Drains

Stormwater drains of 21 km, with diameter of d400 ~ d800, and berried depth at starting point of some 2.0 m.

New construction

Environmental improvement and landscaping

Environmental improvement:

Green space of 272 310 m2；

Roadside green space of 118 310 m2, among which Xingning Road 68 960 m2, and Binhe Road 154 500 m2.

New construction

Note: The standard of flood control for river channel rehabilitation is that it has capability against a serious flood which occurs once in 50 years.

Road Alignment/Route

The road network of Xining District takes a shape of lattice, in which 8 roads are of longitudinal direction, and 3 roads are of transversal direction. Those roads will be constructed based on the local landform and the location of Guangjiyan River. The distance from east to west is 3317 m, and the distance from south to north is 2158 m. The proposed roads with a total length of 27.16 km and 9 bridges will be constructed.

The following graph gives the number or codes of roads in Xining District:

The alignment/route of Xingning Road is: Yuesahn Village (terminal, starting point) — Shizihe Village — Shuiku Village —Yaowan Village — Suihui Road (terminal, ending point). The road has a total length of 8619.25 m. It passes through the entire development area longitudinally, being adjacent to Xining District, which is the key area of economic development, in the south, and adjacent to Suihui Highway, Chengnan Expressway, and extending to the railway station in the north.

Traffic flow forecast:

Based on Urban Traffic Planning of Suining City, Xingning Road and other 21 roads in Xining District are analyzed one by one in term of their traffic flow. The traffic trends between the railway station area and Liutongba area are mainly analyzed. Then the forecast traffic flows of those roads are given in Table 2-2.

Table 2-2 Traffic Flow Forecasts of Roads in Xining District and Xingning Road

(Unit: vehicles /h)

Road segment

2009

2019

2029

1

1997

2774

3425

2

1312

1823

2250

3

1266

1758

2170

4

316

439

541

5

1106

1537

1897

6

303

421

520

7

299

416

513

8

290

403

498

9

277

385

475

10

1286

1786

2205

11

267

371

458

12

278

386

476

13

258

358

442

14

241

335

413

15

232

322

398

16

226

313

387

17

240

334

412

18

246

342

422

19

240

333

411

20

240

333

411

21

239

331

409

Xingning Road

1462

2031

2507

2.1.3 Total Cost Estimate of the Project

The total investment or cost of the project is RMB 353.1370 million, among which

RMB 49.1345 million of Xingning Road, and RMB 304.0025 million of public facilities in Xining District.

The total dynamic investment/cost is 575.3046 million which includes RMB 134.3146 million of land acquisition and resettlement.

2.1.4 Time Schedule

The total construction period of the project is 42 months. It is proposed to commence in January 2005, and complete by the end of June 2008. The concrete time table see Table 2-3.

Table 2-3 Construction Progress of the Project

　 Year

Component

2005

2006

2007

2008

Remarks

Preparation

Road foundation works

Road pavement works

Bridge and culvert works

Greening works

River channel rehabilitation works

Drainage pipes works

2.2 Project Components and Analysis

2.2.1 Road Traffic

2.2.1.1 Road construction

At present, there is only one road of rural grade in Xining District, leading to Anju Town and the urban center of Suining City. The project involves the construction of 21 roads (18 of new construction and 3 of extension), with a total length of 27.16 km and a width of 12 ~ 40 m. The project also involves the construction of 9 river bridges. The proposed Xingning Road has a total length of 8.52 km. Table 2-4 shows the quantities of construction works. Figure 2 of Annex shows the road planning, and Figure 3 of Annex shows its external environmental relations.

Table 2-4 Road Works and Main Engineering Quantities

Name of road

Vehicle lane

(m2)

Pedestrian

(m2)

Earth works

Backfill (m3)

Excavation (m3)

No. 1

54560

34100

93000

303300

No. 2

65780

23920

102700

114500

No .3

37280

18640

44100

23000

No. 4

28000

12000

19800

23000

No. 5

27360

13680

29800

115100

No. 6

15960

6840

12500

78400

No. 7

21980

9420

16200

35100

No. 8

27720

10080

26700

80900

No. 9

32620

13980

63100

21900

No. 10

18720

9360

10400

17800

No. 11

6600

3960

3800

11300

No. 12

3500

2100

2500

12600

No. 13

11000

6600

4400

51000

No. 14

4340

1860

7100

1900

No. 15

11480

4920

8400

60200

No. 16

3500

2100

4700

3300

No. 17

3400

2040

6500

8800

No. 18

3440

2580

34600

200

No. 19

4300

2700

300

22800

No. 20

2560

1280

11800

100

No. 21

3080

1320

2300

1800

Xingning Road

137920

68960

237300

267200

Total

521900

258390

742000

1254200

2.2.1.2 Road alignment / route design

The route or alignment of Xingning Road: Yuesahn Village (terminal, starting point) — Shizihe Village — Shuiku Village —Yaowan Village — Suihui Road — Railway Station (terminal, ending point). The road has a total length of 8516.38 m.

The standard cross-section of Xingning Road is: 4 m of pedestrian + 16 m of vehicle lane + 4 m of pedestrian.

Three alternatives of Xingning Road are compared in Table 2-5.

Table 2-5 Technical and Economic Parameters of Xingning Road

Item

Scheme of Xinhning Road

Length

8.52 km

Width

24 m

Number of curves

14

Maximum radius of curve

500 m

Minimum radius of curve

50 m

Maximum longitudinal slope

5.0 %

Minimum longitudinal slope

0.39 %

Number of culverts

22

Total cost

RMB 35.4732 million

Per km cost

RMB 4.1635 million/km

Route/Alignment Design of Roads in Xining District:

The road network of Xining District is divided into 3 blocks with the boundary of Guangjiyan River which takes a shape of “S”. The three blocks are the east block, the middle block and the west block. Those blocks are connected by 3 trunk roads from east to west. While from south to north, 8 sub-trunk roads and branch roads are the frame of the network, with an average distance of 180 m. The minimum distance between road mouths is 90 m, and the maximum distance between road mouths is 900 m. The minimum radius of curve is 40 m, and the maximum radius of curve is 500 m. The maximum longitudinal slope is 5.94%, and the minimum longitudinal slope is 0.3%.

Intersections of roads are of plane pattern or at same elevation without central island or guiding island. At the intersection of trunk road and sub-trunk road, the vehicle entrance will be widen to three lanes so as to benefit the waiting vehicles when traffic lights turn red. Curbs at the intersection of trunk roads will have proper radius depending on the angle of crossing. Its minimum radius is 15 m, and the design speed is 30 km/h.

Insulation or isolation measures will be taken to separate the lanes of motor vehicle and bicycles or other man-power vehicles. Traffic lights will be installed at the intersections where the traffic flow is high.

2.2.1.3 Design traffic flow

According to Specifications for Urban Road Design, for motor vehicles which are not affected by plane interchanges, the potential vehicle flow is: 1640 vehicle/h when the design speed is 20 km/h; 1550 vehicle/h when the design speed is 30 km/h; and 1380 vehicle/h when the design speed is 40 km/h. The coefficient of road hierarchy is trunk road 0.8, sub-trunk road 0.85 and branch road 0.9, respectively.

The design width of Xingning Road is 24 m, among which 18 m of vehicle lanes for both motor-driven and manpower vehicles. There are 9 interchanges of the road. Their average distance is 960 m. By calculation, the affecting coefficient of interchange is 0.85, so the capacity of vehicle flow is 1120 vehicle/h. The two side lanes for manpower vehicles. Considering the affecting coefficient of manpower vehicle is 0.8, thus the traffic capacity of Xingning Road is 4032 vehicle/h.

The existing peak traffic flow rate per hour is 8.3%. With the increase of traffic, peak traffic flow rate per hour will be increase. It is forecasted that the peak traffic flow rate per hour will increase by 11% and 12% in 2010 and 2020, respectively.

The design of Xingning Road of 2 directions and 4 lanes can meet the demands of hourly peak traffic flow in 2029.

2.2.1.4 Building material supply conditions

For the construction of project, some natural materials, such as sand, pebbles, broken rocks, and slag are needed. Sand and pebbles can be taken from the river bed of Fujiang River. It has good condition to excavate, and the transportation distance is less than 10 km. For taking such raw material, specific permit should be got from local governmental department. Broken rocks and slag can be got from ground leveling of Xining District as well as earth excavation of Xingning Road construction. It is estimated that the transportation distance is less than 5 km.

2.2.2 Bridge and Culvert Component

2.2.2.1 Bridge and culvert works

Nine bridges will be constructed in Xining District. Among them, one bridge crosses Nanbeiyan River, and 8 bridges cross Guanjiyan River. The maximum span is 56 m and the minimum span is 28 m, with a width of 20 ~ 40 m. Two culverts will be constructed. The bridge and culvert works of Xining District are shown in Table 2-6.

2.2.2.2 Design schemes of bridge and culvert

For 1st Bridge, there are two schemes: one is arc-type bridge, and the other is single span bridge of prefabricated concrete T beam with simple supporting pillars. The later one is recommended. Such scheme has some advantages of low cost, short construction period, good driving condition, good image, no extra decoration, less interference on surrounding environment, and be beneficial for civilization construction activities. The 1st Bridge will be located at Nanbeiqu River which is the drinking water source conservation area of Suining City. The proposed single span bridge of prefabricated concrete T beam with simple supporting pillars will have no impact on the water body.

Bridges 2nd ~ 9th will adopt the design of single span bridge of prefabricated concrete T beam with box-type simple supporting pillars. Among them, bridges 3rd, 4th and 8th are located at the interchanges of roads.

In order to guarantee the irrigation by the two sides of road, culverts will be constructed where Xingning Road goes. Most of them are of reinforced steel-concrete cover type, such design decrease the number of inverse-siphon facilities. Totally 22 culverts will be construction along Xingning Road. Bridge works of Xingning Road see Table 2-6.

Table 2-6 Bridge Works of Xingning Road

Bridge

Span

Length

Road No.

Area

Type

(m)

(m)

（m2）

1st（Recommended）

25+25

56

　

1658

Simple supporting beam

1st（Comparison）

15+25+15

56

　

1675

Arch

2nd

25

29

1st

1273

Simple supporting beam

3rd

24

28

5th

1299

Simple supporting beam

4th

24

28

4th

1118

Simple supporting beam

5th

25

29

1st

2022

Simple supporting beam

6th

24

28

2nd

720

Simple supporting beam

7th

24

28

3rd

609

Simple supporting beam

8th

24

28

2nd

1245

Simple supporting beam

9th

30

34

1st

1049

Simple supporting beam

2.2.3 Drainage Pipe Works

2.2.3.1 Existing sewage interception and urban drainage planning in Xining District

At present, no sewage intercepting facilities are available in Xining District. Domestic wastewater and industrial wastewater all discharge to Guangjiyan River. The existing WWTP only treat the sewage from the area south of Mingyue Bridge of the urban center of Suining City, and the area north of the WWTP. The WWTP adopts CASS technology of secondary treatment. It has a treatment capacity of 40 000 m3/d.

According to the detailed control planning of Xining District, separate drainage system is adopted in Xining District. That is, sewers receive wastewaters, and stormwater drains receive rainfalls. Each has its independent system. Stormwater will flows to the river nearby, while wastewater or sewage will go to sewers and then to wastewater treatment plants (WWTP). The treated effluent will discharge into the river.

According to Urban Master Plan of Suining City, a WWTP with a capacity of 10 000 m3/d will be built in Nanba Industrial District in the near future, and it will expend to 30 000 m3/d in the far future. The WWTP will treat the wastewater from economic development district and Qujiagou industrial division.

2.2.3.2 Stormwater drains works

There are two water bodies mainly in Xining District, they are Nanbeiyan River and Guangjuyan River (canals). Stormwater from roads of Xining District will flow to Guangjiyan River. Based on the principle that stormwater discharges into the nearest water body, the proposed stormwater drains will be laid along the slopes terms of the road elevation.

The total length of stormwater drains in the project area is 21 km. The trunk drain adopts reinforced steel bar concrete pipes with diameter of DN 400 ~ 800. Its starting point has a berried depth of some 2.0 m. Steel net with concrete will used to connect the pipes. Single grid type of drain inlet at the road side will be adopted as the stormwater inlet. The stormwater inlets will be connected by reinforced steel bar concrete pipes with diameter of DN300 mm. Steel net with concrete will used to connect the pipes. Manhole will have a slope of 1% to them. The branch drain of connecting the manhole adopts reinforced steel bar concrete pipes with diameter of DN300 mm too.

The manhole of stormwater has a circular or rectangular shape, and made of bricks. The stormwater manholes will be set based on the relevant specifications. Generally, the distance is in the range of 30 ~ 50 m.

2.2.3.3 Sewer works

A trunk intercepting sewer along the trunk road from east to west will be constructed in Xining District. And its branch sewers will also be constructed at the lower elevation area in term of the drainage area division. All the sewage will flow to a sewerage pump station which locates at an triangle area where the trunk road (40 m wide), Nanbeiyan River and Guangjiyan River intersect. The pump station has a capacity of 20 000 m3/d. Sewage will flow to the proposed WwTP in Nanba Industrial Zone through the pump station. It is estimated that the sewage quantity from Xining District is 16 400 m3/d. Table 2-7 gives a detailed information.

At present, Nanba WwTP has a treatment capacity of 30 000 m3/d. It will increase to 80 000 m3/d after the implementation of Phase II project. Although the completion of the proposed project of roads and drainage works will speed up the local development, the existing Nanba WwTP can still meet the demands of sewage treatment in a relative long period because the development in Xining District will have a step-by-step process of construction.

Table 2-7 Sewage Forecast

No

Place

Daily max. water supply

（m3/d）

Sewage discharge ratio

（%）

Daily max. sewage quantity（m3/d）

Daily average sewage quantity（m3/d）

1

Residence

25056

70

17539.20

14616

2

Administration

42.75

70

29.93

24.94

3

Commerce & finance

1277.255

70

894.08

745.06

4

Scientific research

76.25

70

53.38

44.48

5

Hospital

642

70

449.4

374.5

6

Warehouse

143.5

70

100.45

83.71

7

Public facilities

398

70

278.60

232.17

8

Road & square

1455.75

0

0.0

0.0

9

Sports & recreation

486

70

340.20

283.50

10

Green space

1635.30

/

/

/

11

Military affair

57

70

39.9

33.25

12

Water body & others

/

/

/

/

Total

31269.80

/

19725.14

16437.61

In the project area, the total length of trunk sewer is 21 km. Its starting point has a berried depth of some 3 m. Reinforced steel bar concrete pipes with diameter of DN 300 ~ 800 will be used to construct the trunk sewer. Steel net with concrete will be used to connect the pipes. The branch sewers will have a diameter of DN300. Diameters of trunk sewer and reserved branch sewer should be calculated based on the sewage quantity collected.

2.2.3.4 Quantity of drainage works

Table 2-8 Quantity of Drainage Works (unit: m)

Name of road

Sewage

Stormwater

D300

D400

D500

D600

D700

D800

D400

D500

D600

D700

D800

No. 1

　

1740

730

　

920

140

1690

1000

280

　

360

No. 2

2520

1050

　

　

　

　

1620

970

690　

　

　

No .3

870

400

370

820

　

　

1130

740

510

　

　

No. 4

720

550

700

　

　

　

2170

　

　

　

　

No. 5

　

220

810

　

　

　

220

510

300

　

　

No. 6

180

300

620

　

　

　

180

300

500

120

　

No. 7

450

1050

　

　

　

　

450

550

500

　

　

No. 8

1450

　

　

　

　

　

950

500　

　

　

　

No. 9

1600

480

220

　

　

　

1990

260

200

　

　

No. 10

790

　

　

　

　

　

640

260

　

　

　

No. 11

360

235

　

　

　

　

365

240

　

　

　

No. 12

　

215

　

　

　

　

　

215

　

　

　

No. 13

300

400

　

　

　

　

700

　

　

　

No. 14

270

　

　

　

　

　

270

　

　

　

　

No. 15

　

　

740

160

　

　

640

160

　

　

　

No. 16

250

　

　

　

　

　

250

　

　

　

　

No. 17

　

290

　

　

　

　

　

290

　

　

　

No. 18

350

　

　

　

　

　

350

　

　

　

　

No. 19

410

410

No. 20

280

280

No. 21

215

215

Total

8520

6390

4190

980

920

140

13075

5095

2290

120

360

2.2.4 River Channel Rehabilitation

From west to east, the river channel rehabilitation of Guangjiyan River will start from Yueshanpo, go along the existing river embankments/banks, and end at the gasoline station of petroleum company, 80 m downstream of the merging point of Nanbeiyan River. The embankments will be constructed by gravitational mortar pebbles, and have a total length of 4730.00 m. The landscaping and the greening works will be done together the river channel rehabilitation. The main quantity of river channel rehabilitation of Guanjiyan River is given in Table 2-9.

Table 2-9 Main Engineering Quantity of Embankment of Gunagjiyan River

Name

Component

Unit

Quantity

Embankment of gravitational mortar pebbles

Excavation

m3

397320

Backfilling

m3

217580

M10 mortar pebbles

m3

106140

Slice rock pavement

m2

63382

Large pebbles

m3

26015

Lawn bricks

m2

23650

Greening slope

m2

10595

Fence

m

9460

Earth weir

m3

8000

2.2.5 Engineering Quantity of Environmental Improvement and Landscaping

(1) Total green space 272 310 m2, among which

Green spaces: 236 484 m2 (86.84% of the total),

Square pavement: 16 100 m2 (5.91% of the total),

Lane area of parks: 2300 m2 (0.84% of the total),

Water area: 926 m2 (0.34% of the total),

Riverbank pedestrian path area: 16500 m2 (6.59% of the total).

(2) Road Greening

Road trees: Some 6012 trees will be planted with a space distance of every 5 m (one side, total length of road 15 030 m).

Road greening area: 118 310 m2 , of which 68 960 m2 in XinningRoad.

(3) Green space area of Binhe Road 154 500 m2 , among which

Cultural Square 14000 m2　　　

Recreation square 6000 m2

Commercial square 24000 m2　　

Relics exhibition area 6500 m2

Ecological green land 4500 m2

2.3 Identification of Environmental Impact Factors

The emission of pollutants occur mainly in construction phase of the project, while in operation of the project, traffic noise and automobile exhaust will be the major pollution due to the increase of traffic flow.

2.3.1 Identification of Environmental Impact Factors in Construction Phase

(1) Flying Dust

Flying dust generated from construction activities is one of the major reasons that cause the increase of TSP and PM10 levels in air. It has notable adverse effect on the ambient air in a small area, and reduce the air quality directly.

(2) Waste Gases in Construction Phase

In order to mitigate the impact caused by waste gases, during the construction period, asphalt, which is used for road and bridge construction, will be got from local asphalt melting plant of The Road Repair & Maintenance Brigade of Suining City in Chengnan Industrial Zone through purchasing. So it is no needed to set a special asphalt melting site for the project construction.

(3) Spoils and Debris

The Suining City has a landform of low hilly land. In order to comply with the relevant technical standard or code, road construction and river channel rehabilitation will involve the processes of high filling and deep excavation. It is primarily estimated that the earth excavation is 1 652 520 m3, and the earth filling is 959 80 m3. The earth excavation is larger than earth filling by 691 940 m3 . All the excavated earth will be used for backfilling, greening or landscaping.

(4) Construction Noise

The main noise sources are transportation vehicles, construction machines and power tools. It is estimate that the noise level is in the range of 75 ~110 dB(A).

(5) Wastewater in Construction Phase

Wastewaters generated in the period of construction phase are domestic wastewater of constructors and construction wastewater. In construction phase, it is supposed that 500 of constructors and on-site managerial staff (maximum) will take part in the construction activities. The quantity of domestic wastewater in construction phase is some 50 m3/d. Construction or production wastewater from concrete mixing, equipment cleaning and site cleaning are the main wastewaters generated from construction activities. The main pollutant of those wastewaters is SS, being in the range of 1000 ~ 3000 mg/L. They are weak acidic, and contain small amount of oils.

(6) Land Acquisition and Resettlement

The project will occupy a total land of 2331.57 mu, among which farmland 1431.57 mu, and enterprises’ land 900 mu. (1 mu = 1/15, or 15 mu = 1 ha) The project will demolish total floor area of buildings of 143 420.78 m2, among which 845 65.53 m2 of farmers’ house (including 661 m2 of private stores or shops), and 58 855.25 m2 of enterprises and schools.

2.3.2 Environmental Impact Characteristics and Mitigation Measures in Operation Phase

In operation phase, the major environmental issues are noise and exhaust generated from automobile or motor vehicles running. In the meantime, it will have positive impacts of speeding up the urbanization, improving the investment environment, and raising the land value.

(1) Impact on Acoustic Environment

According to design data and analogical survey, the automobile flow of different type is given in Table 2-10 by calculation.

Table 2-10 Traffic Flow Forecast of Different Type of Automobiles (unit: vehicles/h)

Road grade

Type

2009

2019

2029

Daytime

Nighttime

Daytime

Nighttime

Daytime

Nighttime

Trunk road

Small

1248

277

1734

386

2140

476

Median

437

97

607

134

749

165

large

312

68

433

95

535

118

Total

1997

442

2774

615

3425

759

Sub-trunk road

Small

820

183

1139

254

1406

309

Median

287

64

399

88

492

108

large

205

44

285

63

352

77

Total

1312

292

1823

405

2250

494

Branch road

Small

198

44

274

60

338

74

Median

69

15

96

21

118

26

large

49

11

69

15

85

19

Total

316

70

439

96

541

119

Three types of automobile have average radiation sound level (dB) as follows, see Table 2-11.

Table 2-11 Average Radiation Sound Level of Automobiles

Type

Average Speed（km/h）

Radiation Sound Level(dB)

Small sized（S）

80

77.7

Median sized（M）

80

88.2

Large sized（L）

80

91.6

(2) Impact on Air Environment

The main pollutants in automobile exhaust are: Co, CH, and NOx. For the assessment, CH and NOx (calculated by NO2) are considered. Through considering the ratio of different type of automobile as well as the traffic flow, the pollutant emission forecast are given in Table 2-12.

Table 2-12 Pollutant Emission Forecast of Automobiles in Proposed Roads

(unit: mg/vehicle . m)

Road grade

Year Pollutant

Trunk road

Sub-trunk road

Branch road

2009

CO

30.05

18.73

4.7

NOx

1.96

1.20

0.33

2019

CO

41.3

27.14

6.53

NOx

2.72

1.79

0.43

2029

CO

51

33.5

8.01

NOx

3.36

2.21

0.53

(3) Impact on Socio-environment

After operation of the road, the traffic condition in the urban area of Suining City will be improved, and it also will promote the development of the city. It will promote the economic development of Suining, improve the infrastructure condition of Suining, and improve the living standard of citizens, especially the villagers living presently along the road.

2.4 Necessity and Rationality of the Project

Xining District is in the Economic and Hi-tech Development Zone of Suining City. The eastern new district started late, with insufficient infrastructure facilities, and separated apart by Fujiang River, thus it develops slowly. The old urban area (urban center) has left little land for further construction, and cannot meet the need of growing population. Industrial District is mainly used for industry construction and leaves little land for other use, either. To quicken the development of Suining City, more people will flood into the city and so only the Development Zone could play the role to solve the problem. While the Northern District of the Development Zone has less and less land for further development. Xining District, as a comprehensive economy district, is also developing slowly for traffic difficulty. Thus, Xining District will with no doubt develop faster after improving the traffic facilities and infrastructures facilities. This project goes on with the Detail Design of Xining District in terms of direction of route and technical parameter and the Master Plan of Suining City. The Master Plan (or Overall Urban Development Planning) of Suining City see Figure 4 of Annex.

Xinning Road lies in the western side of the Economic and Technologic Development District. It is an important part of the Western Ring Road. The construction of Xinning Road will enhance the relation of the divisions within the Development District, divert the south-to-north traffic in the center of city, and promote the development of the land on both sides of the road. The planed route is presently hilly terrain, including farmland, some pounds, which are suitable for road construction.

According to rough estimation, the project will need earth excavation 1 651 520 m3，earth backfilling 959 580 m3，earth abandoning or spoils 691 940 m3 . All the spoils will be used for filling the bottomland or low land in greening project within Xining District. Gravels and broken stone bits can be obtained within a short distance in the district and so there is no problem for fetching and abandoning earth and stones.

There are no cultural relics and precious trees along Xinning Road. The major historical site within Xining District is the provincial preserved site, Guangde Temple. Because of the 70m distance from the temple to the road and a river between them, the construction and operation of the road will not have negative impact on Guangde Temple. The stability of the land along the road is good, with little bad terrain. So generally speaking, the environment exerts no obvious restrict. The project forms no obvious restrict to the development and environmental protection of Suining City.

The construction of public facilities in Xining District all adopts underground pipe network, and separate drainage system. Underground pipe network favors improving the whole city environment, sewage management and flood discharge. At the same time, the main artery or trunk road will play both the role of traffic passage and the landscape of the city, and the green belts on both sides of the road would be good place for walking. Thus, this project is feasible from the angle of environmental protection.

3.0 ENVIRONMENTAL SETTING

3.1 Physical Environment

3.1.1 Geographical Location

This project lies in the western side of Suining City, in the west of Kaishan East Road, extending westward to Liutongba, eastward to Nanbei River, northward to Guangde Temple, Wolongshan Park, Nanya Temple, and southward to a 100m distance of southern Guangjiyan River. In the past, this district belonged to the government of Xining Town, which included Dabanqiao Village, Jinmei Village, Yueshan Village and part of Bajiaoting Committee’s land. At present, it belongs to the government of the Guangde Street Office of Suining Development Zone. Suining City lies in the middle of Sichuan Basin, the middle reaches of Fujiang River, with its geographical coordinates east longitude 105(34(22.5(，north latitude 30(30(33(. The old urban area of Suining City is 3km wide from east to west, 5km long from north to south, and its area is 15km2. It lies at the joint of Sichuan-Bubei and Mianyang-chongqing roads, 230km from Chongqing City, 180km from Mianyang City, 100km from Nanchong City and 170km from Neijiang City, and 80km railroad of Da-cheng (Dazhou-Chengdu) Railway is in Suining City. The old urban area was constructed along the western side of Fujiang River in the river valley plain, looking at each other with Hedong and Renli Towns, with Nanqiang Town in the south. The location of project area see Figure 4 of Annex.

3.1.2 Terrain, Topographical Features, and Geology

The surface configuration within Suining City is high in the western and north-eastern area, with edge above sea level around 500m and the peak 536.9m above sea level, Wenbi Mountain in Renli Town, and it is low in the middle and southern area, with lowest point 249m above sea level in the middle of Fujiang River at the joint of Lujia River of Shanxin Town in southeast and Chenjia River of Yongan Town of Tongnan; the average altitude of the whole city is 280~380m, with maximum elevation difference 287.9m and majority elevation difference under 100m. The massif within the city winds and weaves, forming the shape of the Chinese character “川 ”. In the middle area, Longdou, Hengshan, Juxianzhichi and Majia Town form a line of massif to divide the Fujiang River and Qiong River.

Suining City lies on the terrace of the right bank of Fujiang River, with topographical features: high in the western and northeastern areas and low in the middle and southern areas. Geology Report believes that beside farmland, other rock and earth layers could be taken as natural base.

Xining District is upland with a single dyke, and its elevation is about 270~375, with small hills distributed within. The topographical structure of Suining City is simple, belonging to the Drape Belt in the middle of Sichuan Sedimentation of the Third Sedimentation Belt of New Huaxia Sires, and the surface structure is the result from Indo-Chinese Epoch to Himalayas Epoch. According to geological categories, the geological structure’s feature is about from east to west or from south to north and form north to east, mostly appearing in arc shape. Within the city area, there is no big rupture, and wide and slow drapes often in ordered anticline and syncline, except a secondary constitution—Tianshan Temple turbine-like structure upon the East to West Belt 15km away from Shehong County in the west. Most of the revealed layers of the city belong to Jurassic System, Cretaceous System, and Quaternary System.

Suining City is a region stricken by earthquake with an intensity of 6 degree, so the lifeline project and big high-layer public buildings will set up defense at 7 degree of earthquake intensity.

3.1.3 Meteorology

Suining City belongs to subtropical moist monsoon climate with features of mild, clear separation of four seasons, plenty of rainfall, longer frost-free period, more fog and clouds, and less sunshine.

The annual average temperature is 17.4℃. The extreme maximum temperature is 39.3℃, and the extreme minimum temperature is -3.8℃. The annual average relative humidity is 80%. The annual average precipitation is 1006.9 mm. The annual maximum precipitation is 1371.4 mm, and the annual minimum precipitation is 736.7 mm. The annual average evaporation is 967.4 mm. The annual average sunshine time is 1306.9 ~ 1471.8 hours. The average atmospheric pressure is 970.9 ~ 981.3 Pa. The annual average wind speed is 0.6 ~ 1.8 m/s. The maximum wind speed is 18 m/s. The predominate wind direction is N (19%), and the annual average calm frequency is 68%.

3.1.4 Waters

3.1.4.1 Surface water

Suining City has 46 creeks and rivers, interleaving everywhere. Xining District has rivers: Guangjiyan River, Nanbeiyan River and Fujiang River. Fujiang River originates from Shanheyi on the southern side of Ming Mountain, is 670km long with acreage of catchments 34600km2 , runs from Xiangshan of Shexing County, through the center of Suining urban area, to Shanxing Town and out of Suining to join in Jialingjiang River. Within Suining City, the running distance of Fujiang River is 176km, its rain-gathering acreage is 3953km2 , year flux 14.925billion m3, average ratio of river way dropping 0.54‰, river width 80-200m with narrowest width about 40m, the maximum flood peak flowrate 9960 m3 /second, the average flowrate 128.5 m3 /s, and the minimum flowrate 60 m3 /s.

Nanbeiyan River is a canal which is a water diversion channel of Xiobaita Power Plant at Longfeng. It originates from the Huangniantuo of Fujiang River. Its total length is 26.6km, and 18 m of fall. The maximum flowrate 151 m3/s, its minimum flowrate 70 m3/s, the design velocity is 0.9 m3/s, maximum velocity 1.15 m3/s, ratio of water level change about 0.7, average water level above city zone about 2m. The water quality is good and is the source of drinking water of Suining City.

Guangjiyan River is an upstream canal of Fujiang River, the main surface water running through Xining District, and its main function is irrigation. Because Nanbeiyan River as the water source conservation area of Suining City, Guangjiyan River does not run into but under through Nanbeiyan River to join in Fujiang River. Within Suining City, Fujiang River is mainly used for industry, agriculture, irrigation, hydropower station, navigation and flood discharge.

3.1.4.2 Groundwater

Within the city zone, groundwater is mainly Fujiang River plain loose-rock small opening underwater type and red layer hill original rock cranny water type.

Fujiang River plain lose-rock small opening underwater is mainly distributed along the first grade terrain and flood plain. Water source mainly comes from rainwater, rivers and filtering water from rice paddy, gathering within the Forth loose layer in the form of small opening water. The groundwater’s burial depth is 3~5m, the extent of water level change 1~3m, waterpower grade 0.3%. Movement of groundwater is mainly vertical to rivers and slightly downward. Generally speaking, groundwater supplies the water of Fujiang River, and the water close to riverbank of Fujiang River is also the supply of groundwater. The volume of a single well on Fujiang River plain is 100~150m3/d, and that of a well near riverbank 2800m3/d.

Red layer hill original rock cranny water is distributed around within the city hilly zones: Zhongtongshaxi Group, Suining Group and Shangtongpenglai Town Group on Jurassic system. The major supply of ground water is rainwater and they are stored in reticulation cranny of air slake belt, constitution cranny and eroded cranny of leached belt. From the angle of groundwater distribution, the eastern zone of Fujiang River is rich in groundwater, while the western zone poor. Because of the flatness of layers within city zone, with terrace obliquity 1~5degree, bits and pieces of water bearing layers, the surface water easily flow away and hardly gather underground and so the volume of groundwater is usually a little. Influenced by rainfall, the volume of groundwater changes greatly from season to season. In flood season, there is a great amount of groundwater; in dry season, a lot of wells and springs dry up. The burial depth of groundwater in eastern zone of the city is 20~30m, that of western zone 10~20m. The largest volume of a single well is 50~100m3/d, the smallest volume 10~50m3/d.

3.1.5 Vegetation and Others

From the angel of geographical location and climate condition in Suining City, the original vegetation belongs to sub-tropical evergreen broad-leave forest. Because of agriculture development, the original vegetation was replaced by capacious crop vegetation, with spotted small manmade woods, trees around houses, bushes, grassy slopes and stony wasteland.

The type of vegetation within city zone is very simple. Woods are often mainly made up by evergreen cypresses, with simple structure, and clear layers i.e. arbor layer, bush layer, and grass layer. Arbors including thistles and thorns, Coriaria sinica, thorn pear, lespedeza, transplant seedlings and so on; grass layer includes pachyrhizus vines, wild cotton, dandelion, cogon, blond hair grass, cotton grass, Kongyi grass, yellow congongrass, centipede grass, Dallis grass, dog-tail grass, thin stem grass, Iridaceae and so on.

The construction zone of this project is mainly farmland vegetation, spotted trees around houses and some bushes. No precious or protected plants were found distributed within the zone possibly influenced by project construction.

3.1.6 Natural Resources

3.1.6.1 Mines

Suining City is short of metal mines and rich in non-metal mines. Exploited and used mines are bittern, sand gold, shale, sandstone and so on. Bittern is one of the important mines within the city, is distributing in Penglai, Guihua, Paosheng and other places. Only in Penglai Town, bittern storage reaches 4.24 billion ton, 0.848 billion ton available for exploitation, which contains salt more than 70 million ton, and provides material for salt and salt industries. The storage of purple shale and pottery clay and sandstone is rich and used as the material of decoration brick and ceramic tile production.

3.1.6.2 Energy sources

Suining City has certain energy sources, which mainly are oil and gas. Moxi Gas Field has been proved up to have an acreage of 120km2, gas storage 25billion 120km2; in Penglai, Guihua and Jinhua, oil layers have been discovered and are lies in the Jurassic system layers of Daanzai Group and Secondary Alternated System layers of Xiangxiqun, Leitianjin Group, Jialinjiang Group and other places, and they are mainly gas fields. Huayingshan is rich in coal and has coal storage 18million ton. Waterpower storage is 0.5424million kilowatt. Biological energy ----sewage gas exploitation has great potentials.

3.2 Socio-environment Environment

3.2.1 Division of Administration and Population

January 5th of 1950 saw the foundation of People’s Government of Suining County. January 13th saw the establishment of Commissioner Office of Suining Sub-area and Chengguan Town was the location of both the office and government. On February 8th, 1985, the State Council authorized to remove county and establish a municipality to govern the city proper and Shehong County, Pengxi County and Daying County.

Suining City lies in the middle of Sichuan Basin, with a width of from east to west, length from south to north 52km and total acreage 1873.31km2

Suining City governs 21 towns, 13 small towns and 5 street offices. The middle area of Suining City is the location of the city government, and is the political, cultural and economical center of Suining City.

According to statistics, in the year 2002, the total population of Suining City is 1.432 million, including non-peasant 0.271 million, account for 18.9% of the total population. The population density is 764 person/km2.

3.2.2 Socio-economy

The total domestic output value of Suining City in year 2002 is RMB 14.062 billion, including first industry added value RMB 4.449 billion, second industry added value RMB 4.797 billion, third industry added value RMB 4.816 billion and local fiscal income RMB 0.408 billion.

3.2.3 Agriculture Output

The total domestic output value of the urban center of Suining City in the year 2002 is RMB 5814.55 million, including first industry RMB 1908.24 million, and third industry RMB 1889.63 million and its agriculture total output value is RMB 2982.66 million, peasants average income RMB 2116, total acreage of planted farmland 153326 ha, total crop output 153326 ton with crop unit output 5220 kg/ha, total cotton output 3149 tons with unit output 903 kg/he, total oil plants output 52834 tons, total fruits output 13525 tons, total aquatic products output 9860 tons, total amount of live pig in the end of the year 910 000 heads, cattle 1 heads, sheep 129 000 heads, and poultry 8.67 million.

The crop vegetation planted on farmland includes graminaceous plants, such as rice, wheat, corn, jowar, sugar cane; and convolvulaceous plants such as sweet potato; leguminous plants such as soybean, peanut, horsebean, pea, mung bean, cowpea, navy bean, haricot bean; cruciferous plants such as cole, radish; malvaceous plants such as cotton; jute and solanacous plant such as tobacco. Stockbreeding mainly includes family pig feeding, and other avocations include seiciculture, apiculture and so on.

3.2.4 Industrial Production

Textile, food, machinery industries are the support of Suining City’s industry, together with electronics, chemical, and leather industries to form a light industry system. According to statistics, within the urban area of Suining City there is a state-owned enterprise, with total output value of RMB 2.53 million in 2002, 99 collective enterprises with total output value of RMB 340.55 million, and 521 private enterprises with output value RMB 1697.89 million.

3.2.5 Traffic

Suining City lies in the middle of Sichuan Basin, and is an important hinge place of traffic. After the operation of Chengda Railway and Chengnan Highway, the traffic condition of Suining City has been greatly improved. Through railway, one now could reach Chengdu, Nanchong City, and Dazhou City. By highway, one now could reach Mianyang City, Chengdu, Chongqing and so on.

Suining City at present has 30.67 km roads, with an area of 750,400 m3 acreage and 2.5m2/person, occupying 10% of the land of the city, and the density of road network is 4 km/km2（figures above includes only over 10m long road of old urban city）. Compared with the national standard of roads and roads of other cities, Suining City’s roads are still in low level, needing more construction. Within the whole city, only Suizhou Road can be taken as a main artery with 40m wide redline, 7 km long from north to south, shoulders almost all traffic flow of the city. So traffic jam happens frequently and restricts the development of the northern district of the city.

3.2.6 Education and Public Health

Suining City has 93 cultural centers and stations, 2 art performance troupes, 4 libraries, 213 medical and health organizations with 6071 sickbed, 523 people per sickbed, 5679 health technicians, 2360 primary schools, 133 middle schools, and one teacher’s training college.

3.2.7 Tourism and Protection of Cultural Relics

Suining City has picturesque mountains, lots of places of interest and historical site. It was ever famous for “ Suining Eight Spots” and “ Suining Twelve Spots”. There are protected sites of provincial importance, such as Lingquan Temple and Lingquan Scenic Spot, and tourist places such as Qi Mountain, Heming Mountain, Qi Mountain Academy of Classic Learning; tumulus such as Dengzhi’s Grave; old architectures such as Baifu Court, Bilu Temple; stone inscriptions such as Shifougou Statues of Tang Dynasty. The main historical site of Xining District is Guangde Temple in the middle and northern part of the district. The shortest distance between the temple and the designed road is 70m and there is Guangjiyan River between them.

3.3 Xining District

3.3.1 Survey of Social and natural environment of Suining District

Xining District is one of the economic and technological development zone of Suining City. It lies in the northwest of Suining City, west to Yueshanpo, east to Nanbeiyan River, north to First Water Factory of Suining City, south to Taohua Mountain, with a total area of 3.51 km2, and a population of 42000. As part of the economic and technological development zone of Suining City, its function is mainly to develop tourism, secondly to develop industry and goods transportation, and thirdly to afford people’s residency.

The main rivers in Xining District are Guangjiyan River, Nanbeiyan River and Fujiang River. Guangjiyan River is an upstream canal of Fujiang River, and its main function is irrigation.

Nanbeiyan River is a canal which is a water diversion channel of Xiobaita Power Plant at Longfeng. The water quality is good and is the drinking water source water of Suining City. The vegetation in this district is mainly farmland vegetation with spotted trees around houses and spotted bushes, but without precious preserved plants discovered.

The major large enterprises in this district are Chuanzhong Oil and Gas Company and Keweida Company. Industries are most dispersed, such as a plant oil factory near Nanya Temple, a fertilizer factory and a pencil factory along Juxian Road, Chuanzhong oil mining area and an oil machine-mending factory within the area of Liutongba. In short, the industries in this district have no sordid basis, but only out of date buildings and facilities, and a small scale.

The residency lands of this district are the dormitory area in the eastern side of Chuanzhong Oil and Gas Company, with 6 to 7 storey resident buildings that have a certain facilities, resident lands with insufficient facilities dispersed in countryside and towns. This district has one middle school, 3 primary schools and a kindergarten and all are in small scale and have poor facilities. There is a branch station of the police office and no playground for residents.

The acreage ratio of road in Xining District is low. There is east-to-west Juxian Road, connecting Xining District and central area of Suining City in the east and reaching Daanju Town in the west. The Sui-yu Railway goes through the middle area of this district from north to south elevated all the way. There is South Train Station of Suining under construction.

3.3.2 The Present Situation of Land Use in Xining District

At present, the lands for city construction and for village and town construction are intermixed together. The land occupied by city construction is 26.51 ha, 6.3% of the total used land. The land occupied by village and town construction is 324.87 ha, 92.45% of the total used land. The statistic of overall situation of land occupation of Xining District is in Table 3-1.

Table 3-1 Statistics of Land Occupation of Xining District

No.

Code

Names of land occupation

Area

Proportion in construction land（%）

Proportion in total land （%）

Remark

1

R

Second type land for residency（R21）

2.30

4.04

15.2

1.15

——

Land for public facilities（R22）

1.74

2

C

Land for broadcast and TV（C33）

0.51

1.07

4.0

0.30

——

Land for education and scientific research（C6）

0.56

3

M

Second type land for industry（M2）

2.20

14.86

56.1

4.23

——

Third type land for industry（M3）

12.66

4

W

Land for storage（W1）

1.68

1.68

6.4

0.48

——

5

U

Land for water supply（U11）

0.91

4.10

15.5

1.17

——

Land for post and telecommunications facilities（U3）

0.72

Land for funeral and interment facilities（U6）

2.47

6

D

Land for military use （D1）

0.76

0.76

2.8

0.22

Sub-

total

Land for city construction

26.51

100

7.55

——

Land for water area and others（E）

324.87

——

92.45

——

Total

Total planned land

351.38

——

100

——

3.4 Local Planning of Xining District

3.4.1 Functional Orientation of Xining District

According to Master Plan (or Overall Planning) of Suining City（2000～2020）, there will be 8 areas: the old urban area as the center of administration, business and trade, finance, and information; Qujiaogou as the gate of traffic and storage, West Mountain as the area for junior colleges and tourism; Liutongba as the area of traffic gate, business and trade, residency, and industry; Nanba as a industry area, Yongxing as a traffic gate, business and trade, residency, and industry; Dongba as the center of the city administration, business and trade, finance, art and sports; Renli as a industry area. Xining District is included in Liutongba Division, which neighbors West Mountain and meets Nanba in the east. According to Controlled Detail Programming of Xining District of Suining City, the major function of Xining District is tourist service and entertainment, bas