Environmental Monitoring Report€¦ · Overview 1 1.1 Project Overview 1 1.2 Purposes and Implications 1 ... roads as well as the construction of bored pile bridge foundation and

Environmental Monitoring Report

Semestral Report August 2010

PRC: Central Yunnan Roads Development Project

Prepared by MOT Environmental Protection Center for Yunnan Wukun Expressway Company

and the Asian Development Bank.

This environmental monitoring report is a document of the borrower. The views expressed herein do not necessarily represent those of ADB's Board of Directors, Management, or staff, and may be preliminary in nature. In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of any territory or area.

Construction Period Environmental Monitoring-Translated by David.doc

National Western Development Corridor

Lanzhou-Mohan Expressway Wuding-Kunming Section

Construction Period Environmental Monitoring

Summary Report

(For 1

st Half of Year 2010)

MOT Environmental Protection Center August 2010

Client: Yunnan Wu-Kun Expressway Project Management

Office

Prepared by: MOT Environmental Protection Center

Director: JIN Shengli (Professorate Senior Engineer)

Technical Reviewer: LIU Cuilian (Senior Engineer)

Report Writer: LI Chao (Engineer, MOT Environmental

Monitoring Qualification Certificate No. 2009-097)

CONTENT

1. Overview 1 1.1 Project Overview 1 1.2 Purposes and Implications 1 1.3 References 2

1.4 Project Implementation Progress in 1st Half of 2010 3

1.5 Distribution of Monitoring Sites 3 1.6 Construction progress at the sites of construction period environmental monitoring 4 2．Monitoring Results & Assessment 6 2.1 Ambient Air 6 2.1.1 Assessment Standard 6 2.1.2 Monitoring Results & Assessment 6 2.2 Sound Environment 8 2.2.1 Assessment Standard 8 2.2.2 Monitoring Results & Assessment 9 2.3Water Environment 13 2.3.1 Assessment Standard 13 2.3.2 Monitoring Results & Assessment 14 3. Monitoring Conclusions 18 4. Existing Problems 19 5. Conclusion 19

National Western Development Corridor Lanzhou-Mohan Expressway Wuding-Kunming Section Construction Period Environmental Monitoring Summary Report for 1st Half of 2010

MOT Environmental Protection Center 1

A.

B. 1. Overview

1. 1. Overview

2. 1.1 Project Overview

Wuding - Kunming Expressway is a section of Lanzhou - Mohan Highway in Yunnan

Province as a part of the National Western Development Corridor Project. Upon completion,

the Project Expressway will open up and connect the northern gate of Yunnan Province into

the National Expressway Network and facilitate the earlier completion and opening of the

international corridor to Mohan Border Trade Port. Construction of the Project will have far-

reaching implications to facilitate the economic growth, enhance the emerging points of

economic growth and speed up the construction of the well-off and harmonious society in the

ethnic minority areas along the Project Expressway.

With a full length of 63.6km, the Project Expressway has a design speed of 100km/h for

the section from Wuding to Fumin and 80km/h for the section from Fumin to Kunming. Along

the whole expressway, there are 3 extra-large bridges with a full length of 8969.24km, 61

large bridges with a full length of 28657km, 5 medium bridges with a full length of 341km and

64 underpasses and culverts, 4 interchanges and 4 tunnels. Along the expressway, 4 toll

plazas (including 1 mainline toll plaza), 1 expressway management sub-center, 2 tunnel

management stations and 1 maintenance section and 1 service area will be provided.

Cities and towns that the expressway runs by include Wuding, Zhebei，Fumin, Daying and

Kunming.

The Project commenced in November 2009 and is scheduled to complete in 2 years.

3. 1.2 Purposes and implications

In the first half of 2010, MOT Environmental Protection Center carried out totally two

construction period environmental monitoring operations in accordance with the

requirements of the construction period environmental monitoring plan proposed in the

"Technical Service Contract for Construction Period Environmental Monitoring for Wuding-

Kunming Expressway", "Report of Environmental Impact Assessment for Wuding-Kunming

Expressway of Lanzhou-Mohan Highway under the National Western Development Corridor

Project" as well as the "Implementation Plan of Construction Period Environmental

Monitoring for Wuding-Kunming Expressway of Lanzhou-Mohan Highway under the National

Western Development Corridor Project".



The Environmental Monitoring Report for the 1st half of 2010 presents the monitoring

outcomes of environmental pollution to the living and learning environment of the local

villagers and school teachers and students as well as the local environment during the

construction of the subgrade, bridges and tunnels under the Project and provides a scientific

basis for strengthening management of environmental protection activities in the construction

period and inspection and acceptance of environmental protection aspect upon the

completion of highway projects.

4. 1.3 References

（1） Environmental protection law of the People's Republic of China (Dec. 26, 1989)

（2） Regulations on Environmental Protection Management for Construction Projects

(Nov. 29, 1998)

（3） National Regulations on Environmental Monitoring and Administration (July 21,

1983)

（4） Measures on the Management of Pollution Source Monitoring (MEP Circular No.

(1999)246)

（5） Provisions on Environmental Protection Management in Transportation Sector

(MOT Environmental Protection Circular No. (1993)1386)

（ 6 ） Measures for Environmental Protection Management for Transportation

Infrastructure Construction Projects (MOC Ministerial Decree No. (2003)5)

（7） MOC Work Regulations on Environmental Monitoring (December 1982)

（8） Detailed Rules of Implementation on MOC Work Regulations on Environmental

Monitoring (Year 1987)

（9） Technical Specifications on Monitoring of Surface Water and Waste Water

(HJ/T91-2002)

（10） Methods for Air and Exhaust Gas Monitoring and Analysis (Edition 4)

（11） Technical Specifications on Environmental Monitoring (Noise Monitoring), State

Environmental Protection Administration, 1986

（12）"Report of Environmental Impact Assessment for Wuding-Kunming Expressway

of Lanzhou-Mohan Highway under the National Western Development Corridor Project"



（ 13 ） "Implementation Plan of Construction Period Environmental Monitoring for

Wuding-Kunming Expressway of Lanzhou-Mohan Highway under the National Western

Development Corridor Project"

5. 1.4 Project Implementation Progress in 1st Half of 2010

The main construction activities in the monitoring period lasting from April 2010 to

August 2010 mainly comprise of three parts, namely subgrade construction, bridge

construction and tunnel construction. The subgrade works in the early stage mainly include

retain walls, culverts and underpasses and by August 2010 the majority of the subgrade

works had commenced, except for a few individual sections. The main construction activities

include earthwork and stonework excavation and transportation for the high embankment

slopes, removal and deep excavation of top soil in the right of way, masonry works of the

debris dam around the dumping ground, construction of subgrade retaining walls and access

roads as well as the construction of bored pile bridge foundation and drilling and excavation

works of tunnels.

6. 1.5 Distribution of monitoring sites

Representative sensitive sites involving a relatively large number of affected HHs are

selected as sites for each phase of environmental monitoring in accordance with the principle

that “such sites will be the focal point of monitoring, be representative of the section where

they are located and able to give a feedback on the situation of the entire expressway” and

based on factors of terrain, landform and elevation difference of subgrade in the respective

road section.

Table No. 1 Distribution of Monitoring Sites

№ Monitoring

object Chainage

Name of monitoring site

Location of monitoring site

1

Noise at building

site boundary

K7+710 Yangliuhe Building site boundary

K11+660 Xiejiaying Building site boundary

K34+870 Xiaojiaying Building site boundary

K35+350 Kuinan Building site boundary

K35+580 Kuinan Primary

School Building site boundary

K43+240 Sancun Building site boundary

K62+750 Yingjiacun Building site boundary

2 Ambient air

K7+710 Yangliuhe Roof of the nearest row of houses

from the project expressway

K35+600 Kuinan Roof of the nearest row of houses




K43+200 Sancun Roof of the nearest row of houses


3 Surface water

K53+650 Shalanghe 50m upstream and 50m downstream

of the river-crossing bridge

K30+700 Tanglangchua

n

50m upstream and 50m downstream

of the river-crossing bridge

7. 1.6 Construction progress at the sites of construction period

environmental monitoring

Construction progress achieved at each of the monitoring sites by Phase 2 construction

period environmental monitoring in 2010 is shown in Table No. 2 and the progress of on-site

construction activities is shown in Figure No. 1.

Table 2 Distribution of Monitoring Sites

S.N. Name of

monitoring sites Construction Progress

1 Yangliuhe Construction work is not commenced yet and some houses are being demolished.

2 Xiejiaying Masonry works of subgrade retain wall, removal of top soil and diversion of river course are going on.

3 Xiaojiaying Embankment excavation and preparing

4 Kuinan No construction activity is going on, access road completed.

5 Kuinan Primary

School No construction activity is going on, access road completed.

6 Sancun Percussion bored pile under construction.

7 Yingjiacun House demolition in the right of way and bored pile for bridges

K7+710 Yangliuhe K34+870 Xiaojiaying



K11+660 Xiejiaying Monitoring Site and Construction Site

K35+350 Kuinan K35+580 Kuinan Primary School

K43+240 Sancun Monitoring Site and Construction Site

K62+750 House demolition and bored pile bridge foundation construction going

on at Yingjiacun



K30+700 Tanglangchuan K53+650 Shalanghe

Figure No. 1: Photographs of monitoring sites, rivers and construction sites along Wu-Kun Expressway

8. 2． Monitoring Results and Assessment

This construction period environmental monitoring is carried out in accordance with the

relevant requirements included in the “Implementation Plan of Construction Period

Environmental Monitoring for Wuding-Kunming Expressway of Lanzhou-Mohan Highway

under the National Western Development Corridor Project”.

9. 2.1 Ambient air

10. 2.1.1 Assessment standard

Assessment of the ambient air quality along the project expressway is carried out in

accordance with Class 2 standards specified in “Ambient Air Quality Standard” (GB3095-

1996) and the specific standard limits for total suspended particles (TSP) are shown in Table

No. 3 as follows.

Table No. 3: Ambient Air Quality Standard （GB3095-1996）

Unit：mg/m3

Pollutant Measuring Frequency Class II concentration limit

TSP Daily average 0.30

NO2

Daily average 0.12

Hourly average 0.24

11. 2.1.2 Monitoring Results and Assessment

In the first half of 2010, one monitoring was conducted over the ambient air quality and the results of this monitoring activity are shown in Table No. 4. For information regarding the distribution of TSP and NO2 concentrations of the monitoring sites, see Figure No. 2 and No. 3.

Table No. 4 Results of Ambient Air Quality Monitoring



Unit: mg/m3

Location of monitoring site

Date of sampling TSP daily average

NO2 daily average

Weather condition

Yangliuhe

April 18th 0.15 0.06 Clear



Kuinan

April 16th 0.19 0.06 Clear & gentle

breeze


breeze


Sancun


breeze


breeze


breeze

Figure No. 2: Distribution of TSP Concentration

of Monitoring Sites (April 2010)

0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

Apr.

18

Apr.

19

Apr.

20

Apr.

16

Apr.

17

Apr.

18

Apr.

15

Apr.

16

Apr.

17

Yangliuhe Kuinan Sancun

mg/m 3



Figure No. 3: Distribution of NO2 Concentration

of Monitoring Sites (April 2010)

It is known from Table No. 4 and Figure No. 2 and No. 3 as above that the TSP

concentrations measured during this monitoring process at the monitoring sites at Yangliuhe,

Kuinan and Sancun are in the range of 0.12 to 0.29mg/m3 while the NO2 concentrations

measured at these monitoring sites are in the range of 0.03 to 0.7mg/m3, both satisfying the

limit values for Class II stipulated in “Ambient Air Quality Standard” （GB3095-1996）.

12. 2.2 Sound environment

13. 2.2.1 Assessment Standard

Assessment of noise level at construction site boundary during the construction period of

the Project Expressway is conducted in accordance with “Noise Limit at Construction Site

Boundary (GB12523-90)”. See Table No. 5 for details of the standard limits.

Table No. 5: Noise Limit at Construction Site Boundary（GB12523-90）

Construction stage

Major sources of noise

Noise limit

LAeq（dB）

Day Night

0

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

mg/m 3

Apr.

18

Apr. 19

Apr. 20

Apr. 16

Apr. 17

Apr. 18

Apr. 15

Apr. 16

Apr. 17

Yangliuhe Kuinan Sancun



Earthwork and

stonework Bulldozer, excavator, loader, etc. 75 55

Piling Piling machines 85 No

construction.

Structure Concrete mixer, vibrator and electric saw 70 55

Finishing Crane, elevator, etc 65 55


Monitoring of noise on the boundary of construction site was conducted totally in 2

operations. Since no construction activities were going on at night in the road sections where

the 7 monitoring sites are located, only noise level in day time was monitored according to the

requirements in the “Implementation Plan of Construction Period Environmental Monitoring

for Wuding-Kunming Expressway”.

See Table No. 6 for the monitoring results. Trend of changes of the noise monitoring results

at each monitoring site are shown in Figure No. 4 to 10.

Figure No. 4: Trend of changes of the monitoring results of noise at construction site boundary: Yangliuhe

0

10

20

30

40

50

60

70

Apr.19 Apr. 20 July 31 Aug. 1

1st Monitoring 2

nd Monitoring

LAeq(dB)



Table No. 6: Monitoring Results of Noise at the Boundary of Construction Sites

№ Monitoring site

Monitoring Result LAeq（dB）

1st monitoring 2nd Monitoring

Date of monitoring

Monitored value

Assessment standard

Assessment result

Overlimit ratio

Date of monitoring

Monitored value

Assessment standard

Assessment result

Overlimit ratio

1 Yangliuhe April 19 49.0 65 Compliant / July 31 42.6 65 Compliant /

April 20 45.0 65 Compliant / August 1 59.7 65 Compliant /

2 Xiejiaying April 16 63.2 75 Compliant / July 31 50.3 65 Compliant /


3 Xiaojiaying April 16 54.9 65 Compliant / July 31 52.3 65 Compliant /


4 Kuinan April 16 51.6 65 Compliant / July 31 48.0 65 Compliant /


5 Kuinan

Primary School

April 16 52.8 65 Compliant / July 31 61.2 65 Compliant /


6 Sancun April 15 54.3 75 Compliant / July 30 69.1 85 Compliant /


7 Yingjiacun April 16 59.5 75 Compliant / July 30 60.8 75 Compliant /


National Western Development Corridor Lanzhou-Mohan Expressway Wuding-Kunming Section Construction Period Environmental Monitoring Summary Report for 2011


Figure No. 5: Trend of changes of the monitoring results of noise at construction site boundary: Xiejiaying

Figure No. 6: Trend of changes of the monitoring results of noise at construction site boundary: Xiaojiaying

46

47

48

49

50

51

52

Apr. 16 Apr. 17 July 31 Aug. 1

1st Monitoring 2nd Monitoring

0

10

20

30

40

50

60

70


1st Monitoring 2

nd Monitoring

0

10

20

30

40

50

60

70


Monitoring 2nd Monitoring

LAeq(dB)

LAeq(dB)

LAeq(dB)



Figure No. 7: Trend of changes of the monitoring results of noise at construction site boundary: Kuinan

Figure No. 8: Trend of changes of the monitoring results of noise at construction site boundary: Kuinan Primary School

Figure No. 9: Trend of changes of the monitoring results of noise at construction site boundary: Sancun

0

10

20

30

40

50

60

70

80

Apr. 15 Apr. 17 July 30 July 31

1st Monitoring 2

nd Monitoring

48

50

52

54

56

58

60

62


1st Monitoring 2

nd Monitoring

LAeq(dB)

LAeq(dB)



Figure No. 10: Trend of changes of the monitoring results of noise at construction site boundary: Yingjiacun

It can be seen from Table No. 6 and Figures No. 4 to 10 that the construction site

boundary noise level measured at the monitoring sites in the road sections for the 1st half of

2010 ranges from 42.6 to 69.1dB and the noise monitoring results of the majority of these

monitoring sites increased relatively along the development of the construction period.

Construction site boundary noise level measured at these monitoring sites complies with the

specified limit value in the “Noise Limit at Construction Site Boundary (GB12523-90)” and

little impact is produced on the sound environment at the sensitive sites along the project

expressway.

15. 2.3 Water environment

16. 2.3.1 Assessment Standard

For Shalang River (at K53+650) crossed over by the project expressway, water quality is

controlled in accordance with Class II standards specified in "Surface Water Environmental

Quality Standard" (GB3838-2002) while TSP control is carried out with reference to Class II

standards specified in "Quality standards for surface water resources" (SL63-93)

promulgated by the Ministry of Water Resources. For Tanglangchuan (at K30+700) , water

quality is controlled in accordance with Class V standards specified in "Surface Water

Environmental Quality Standard" (GB3838-2002) while TSP control is carried out with

reference to Class IV standards specified in "Quality standards for surface water resources"

(SL63-93) promulgated by the Ministry of Water Resources. See Table No. 7 for the specific

limit values specified in such standards.

Table No. 7 Limit values specified in the environmental quality standards for surface

water

58

58.5

59

59.5

60

60.5

61

61.5

62

Apr. 16 Apr. 17 July 30 July 31

1st Monitoring 2nd Monitoring

LAeq(dB)



Unit: mg/L (except pH)

Assessment standards pH COD Petroleum SS

Surface water environmental quality standard

(GB3838-2002), Class II

6～9 ≤15 ≤0.05 /


(GB3838-2002), Class V 6～9 ≤40 ≤1.0 /

Quality standard for surface water resources

(SL63-93) Class II / / / ≤25


(SL63-93) Class IV / / / ≤60


For the 1st half of 2010, totally two surface water quality monitoring activities were

carried out. See Table No. 8 and 9 for the water quality monitoring results. Trend of changes of

the water quality monitoring results are shown in Figure No. 11 and 12.

Table No. 8 Water quality monitoring results for Shalang River Unit: mg/L (except pH)

River name and

chainage

Sampling

date

Sampling

site pH COD SS Petroleum

Shalang River

K53+650

April 15

50m

upstream 8.8 <10/8 4L* 0.02

50m

downstream 8.7 <10/7 4L* 0.02

April 19

50m

upstream 8.4 <10/7 4.5 0.01

50m

downstream 8.5 <10/5 7.3 0.01

July 30

50m

upstream 8.2 12 6 0.02

50m

downstream 8.2 13 8 0.02

July 31 50m

upstream 8.3 11 9 0.02



50m

downstream 8.3 12 7 0.02


(GB3838-2002), Class II 6~9 ≤15 / ≤0.05


(SL63-93) Class II / / ≤25 /

Assessment Result Complian

t

Complia

nt

Complia

nt Compliant

Table No. 9 Water quality monitoring results for Tanglangchuan

Unit: mg/L (except pH)

River name and

chainage

Sampling

date

Sampling

site pH COD SS Petroleum

Tanglangchuan

K30+700

April 15

50m

upstream 7.4 35 98 0.61

50m

downstrea

m

7.4 39 99 0.67

April 19

50m

upstream 7.7 33 67 0.39

50m

downstrea

m

7.7 37 59 0.46

July 30

50m

upstream 7.9 25 46 0.29

50m

downstrea

m

7.8 24 44 0.35

July 31

50m

upstream 7.8 24 49 0.24

50m

downstrea

m

7.8 26 43 0.25


(GB3838-2002), Class V 6~9 ≤40 / ≤1.0




(SL63-93) Class IV / / ≤60 /

Assessment result Compliant Compliant Overlimit Compliant

Figure No. 11 Trend of changes of surface water quality monitoring results: pH

Figure No. 12 Trend of changes of surface water quality monitoring results: COD

0 5

10 15 20 25 30 35 40

Shalang River K53+650 Tanglangchuan K30+700

Apr. 15

50m

upstr

eam

50m

dow

nstr

eam

Apr. 19

50m

upstr

eam

50m

dow

nstr

eam

July 30

50m

upstr

eam

50m

dow

nstr

eam

July 31

50m

upstr

eam

50m

dow

nstr

eam

Apr. 15

50m

upstr

eam

50m

dow

nstr

eam

Apr. 19

50m

upstr

eam

50m

dow

nstr

eam

July 30

50m

upstr

eam

50m

dow

nstr

eam

July 31

50m

upstr

eam

50m

dow

nstr

eam

Standard limit

5

6

7

8

9

Apr. 15

50m

upstr

eam

50m

dow

nstr

eam

Apr. 19

50m

upstr

eam

50m

dow

nstr

eam

Apr. 19

50m

upstr

eam

50m

dow

nstr

eam

Apr. 15

50m

upstr

eam

50m

dow

nstr

eam

July 30

50m

upstr

eam

50m

dow

nstr

eam

July 31

50m

upstr

eam

50m

dow

nstr

eam

July 30

50m

upstr

eam

50m

dow

nstr

eam

July 31

50m

upstr

eam

50m

dow

nstr

eam


Standard limit

mg/L

Standard limit

mg/L



Figure No. 13 Trend of changes of surface water quality monitoring results: SS

Figure No. 14 Trend of changes of surface water quality monitoring results: Petroleum

It can be seen from Table No. 8 and 9 and Figure No. 11 to 14 that:

During the 1st monitoring of 2010 at the monitoring sites of Shalang River and

Tanglangchuan crossed over the project expressway, the monitored concentrations of pH,

COD and petroleum at all the monitoring sites comply with the respective water quality

standards specified in "Surface water environmental quality standard" (GB3838-2000) and

the monitored concentration of SS complies with the relative water quality standards

specified in "Quality standard for surface water resources" (SL63-93), with the exception of

TSP that exceeded the limits of such standards.

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1


Apr. 15

50m

upstr

eam

50m

dow

nstr

eam

Apr. 19

50m

upstr

eam

50m

dow

nstr

eam

July 30

50m

upstr

eam

50m

dow

nstr

eam

July 31

50m

upstr

eam

50m

dow

nstr

eam

Apr. 15

50m

upstr

eam

50m

dow

nstr

eam

Apr. 19

50m

upstr

eam

50m

dow

nstr

eam

July 30

50m

upstr

eam

50m

dow

nstr

eam

July 31

50m

upstr

eam

50m

dow

nstr

eam

0

20

40

60

80

100

120


Apr. 15

50m

upstr

eam

50m

dow

nstr

eam

Apr. 19

50m

upstr

eam

50m

dow

nstr

eam

Apr. 15

50m

upstr

eam

50m

dow

nstr

eam

Apr. 19

50m

upstr

eam

50m

dow

nstr

eam

July 30

50m

upstr

eam

50m

dow

nstr

eam

July 31

50m

upstr

eam

50m

dow

nstr

eam

Be

low

dete

ctio

n

limit

Standard limit

July 30

50m

upstr

eam

50m

dow

nstr

eam

July 31

50m

upstr

eam

50m

dow

nstr

eam

mg/L

Standard limit

Standard limit

Standard limit



pH：The pH values measured each of the water quality monitoring sites of these rivers

ranged from 7.4 to 8.8 and little changes were noticed of the pH values at the upstream and

downstream cross sections at the same monitoring site.

COD: The COD concentrations of Shalang River and Tanglangchuan respectively range

from 2 to 12mg/L and 24 to 39mg/L, both being below the limit values specified in the

national standard. Little changes were noticed of COD concentrations at the upstream and

downstream cross sections of the same monitoring site, indicating that little impacts are

produced on the water quality of the local water bodies during the construction of the project

expressway.

Petroleum: The concentrations of petroleum in Shalang River and Tanglangchuan

respectively range from 0.01 to 0.02mg/L and 0.24 to 0.61mg/L, both being below the limit

values specified in the national standard. Little changes were noticed of petroleum

concentrations at the upstream and downstream cross sections of the same monitoring site.

SS: The SS concentration measured in Shalang River is less than 10mg/L, below the

limit values specified in the national standard while that in Shalangchuan ranges from 43 to

99mg/L in the first monitoring of Year 2010 and exceeds the limits of the national standard

mainly because of the high turbidity caused by heavy precipitation.

18. 3. Monitoring Conclusions

The monitoring data demonstrates that the project area had a sound ambient air, water

and sound environment during the monitoring activities for the 1st half of 2010.

（1）Ambient air

For the year, the ambient air quality monitoring results of TSP and NO2 met the

standard limits of Class II specified in "Ambient Air Quality Standard" (GB3095- 1996).

（2）Water environment

During the 1st monitoring of 2010 at the monitoring sites of Shalang River and

Tanglangchuan, the monitored concentrations of pH, COD and petroleum at all the

monitoring sites comply with the respective water quality standards specified in "Surface

water environmental quality standard" (GB3838-2000) and the monitored concentration of SS

complies with the relative water quality standards specified in "Quality standard for surface

water resources" (SL63-93), with the exception of TSP that exceeded the limits of such

standards.

（3）Sound environment

The construction site boundary noise level measured at the monitoring sites for the 1st

half of 2010 complies with the specified limit value in the “Noise Limit at Construction Site



Boundary (GB12523-90)” and little impact is produced by the project expressway on the

sound environment at the sensitive sites.

19. 4. Existing problems

20. The main problems existing during the construction period of the

Project include: the monitoring results of the monitoring factors of surface water

quality in the two phases of monitoring are found subject to relatively significant

changes and dumping of construction wastes produced by the riverside sections

produced certain impacts on the water quality of the respective rivers. In addition,

heavy dust is raised during subgrade construction in some individual sections and

the frequency of water spraying and dust suppression is relatively low.

21. 5. Conclusion

In the first half of 2010, Wu-Kun Expressway Project Management Office and the

construction and supervision companies paid relatively serious attention to issues of

environmental protection arising from construction of the project expressway. However,

some individual problems still exist. It is thus suggested that the construction companies take

further actions of environmental protection as proposed in the EIA Report and make

continuous and stronger efforts in environmental management of the sensitive sites along the

project expressway by making proper control of the distribution density of the construction

plants, increasing the frequency of water spraying and providing covering facilities to areas

where serious pollution may arise in the course of construction to control dust raising and

well managing construction plants in road sections along the rivers to prevent possible oil

pollution of local water bodies.

Documents

Environmental Monitoring Report€¦ · Overview 1 1.1 Project Overview 1 1.2 Purposes and Implications 1 ... roads as well as the construction of bored pile bridge foundation and