environmental monitoring reportthat means, january, february and march 2011. so, this document is...

Environmental Monitoring Report

Quarterly Report April 2011

VIE: Greater Mekong Subregion Kunming–Hai

Phong Transport Corridor Noi Bai–Lao Cai Highway

Project

Prepared by Vietnam Expressway Corporation for the Ministry of Transport and the Asian

Development Bank.

CURRENCY EQUIVALENTS (as of 30 April 2011)

Currency unit – dong (D)

D1.00 = $0.000048 $1.00 = D20,550

ABBREVIATIONS

ADB – Asian Development Bank EIA – environmental impact assessment EQR – environmental quarterly report km – kilometer L – liter m – meter mg – milligram ml – milliliter m3 – cubic meter MONRE – Ministry of Natural Resources and Environment MOT – Ministry of Transport NAN – non-accordance notification NB–LC – Noi Bai–Lao Cai PMU – project management unit PSC – project supervision consultants TSP – total suspended particles TSS – total suspended solids VEC – Vietnam Expressway Corporation

NOTE

In this report, "$" refers to US dollars unless otherwise stated. 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.

Loan 2391/2392 – VIE: GMS Kunming – Hai Phong Transport Corridor Noi Bai – Lao Cai Highway Project

Hanoi office : 12th floor, Ocean Park Building, Dao Duy Anh Street, Dong Da District Vinh Phuc office: Huu Thu Hamlet, Kim Long Ward, Tam Duong Dist, Vinh Phuc Province Madrid Spain head office: C/ Ramón de Aguinaga No 8, 28028 Madrid, Spain/ Web Page: www.getinsa.com

QUARTERLY ENVIRONMENTAL MONITORING REPORT

APRIL 2011


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INDEX

ABBREVIATIONS……………………………………………………………...……………3

1. INTRODUCTION. REPORT’S FRAMEWORK ............................................................. 4

2. CONSTRUCTION WORKS PROGRESS DURING THE PERIOD ............................... 7

2.1 PACKAGE A1 ................................................................................................................. 7

2.2 PACKAGE A2 ................................................................................................................. 9

2.3 PACKAGE A3 ............................................................................................................... 11

2.4 PACKAGE A4 ............................................................................................................... 12

2.5 PACKAGE A5 ............................................................................................................... 13

2.6 PACKAGE A6 ............................................................................................................... 14

2.7 PACKAGE A7 ............................................................................................................... 17

2.8 PACKAGE A8 ............................................................................................................... 18

3. CARRIED OUT TASKS DURING THE PERIOD ........................................................ 20

3.1 PACKAGE A1 ............................................................................................................... 20

3.2 PACKAGE A2 ............................................................................................................... 21

3.3 PACKAGE A3 ............................................................................................................... 23

3.4 PACKAGE A4 ............................................................................................................... 24

3.5 PACKAGE A5 ............................................................................................................... 25

3.6 PACKAGE A6 ............................................................................................................... 26

3.7 PACKAGE A7 ............................................................................................................... 27

3.8 PACKAGE A8 ............................................................................................................... 29

4. ENVIRONMENTAL MONITORING RESULTS. COMPLEMENTARY MEASURES TO

BE APPLIED ............................................................................................................... 31

4.1 PROBLEMS AND RECOMMENDATIONS. SUMMARY TABLE .............................. 31

4.3 WATER QUALITY ........................................................................................................ 60


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4.4 SOILS QUALITY ........................................................................................................... 75

4.5 NOISE AND VIBRATION LEVELS ............................................................................. 82

4.6 STREAMS AND RIVERSIDES MAINTENANCE ....................................................... 98

4.7 EROSION RISKS AND STABILITY IN SLOPES ..................................................... 106

4.8 HAZARDOUS SUBSTANCES MANAGEMENT ...................................................... 112

4.9 UNSUITABLE MATERIAL DISPOSALS AND BORROW PITS ............................. 119

4.10 WORKER’S CAMPS CONDITIONS .......................................................................... 128

4.11 WASTE AND CLEANLINESS IN SITE ..................................................................... 137

4.12 BIODIVERSITY PRESERVATION ............................................................................ 143

5. REFERENCE DOCUMENTS RELATIVE TO ENVIRONMENT ................................ 150

5.1 PACKAGE A1 ............................................................................................................. 150

5.2 PACKAGE A2 ............................................................................................................. 150

5.3 PACKAGE A3 ............................................................................................................. 151

5.4 PACKAGE A4 ............................................................................................................. 152

5.5 PACKAGE A5 ............................................................................................................. 153

5.6 PACKAGE A6 ............................................................................................................. 153

5.7 PACKAGE A7 ............................................................................................................. 155

5.8 PACKAGE A8 ............................................................................................................. 156

ANNEX 1: PHOTOGRAPHIC REPORT ............................................................................. 157


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ABBREVIATIONS

ADB Asian Development Bank

EIA Environmental Impact Assessment

EQR Environmental Quarterly Report

MONRE Ministry of Natural Resources and Environment

MOT Ministry of Transport

NAN Non Accordance Notification

NB-LC Noi Bai - Lao Cai

PSC Project Supervision Consultants

VEC Vietnam Expressway Corporation


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1. INTRODUCTION. REPORT’S FRAMEWORK

Within the framework of the Environmental Control Plans proposed by the contractors and

the duties of the Consultant in this matter contained in the Consulting Services Contract, the

environmental team of specialists in charge of inspecting the environmental conditions of the

works for the new highway, have done weekly inspections along the sites and surroundings

of all the Packages which nowadays have already begun their construction activities,

checking the environmental measures applied by the constructors and detecting any impacts

that could be generated by the building works during the period of reference of this report,

that means, January, February and March 2011. So, this document is defined as a Quarterly

Environmental Monitoring Report (hereinafter called EQR).

Noi Bai - Lao Cai highway is a part of Kunming - Hai Phong Transport Corridor, which has

been studied with a total length of 865 km passing Yunnan province of China and Lao Cai,

Yen Bai, Phu Tho, Vinh Phuc, Ha Noi, Bac Ninh, Hai Duong, Quang Ninh and Hai Phong

provinces of Vietnam.

Viet Nam Express Corporation (VEC), which is a state owner company, is the proposer of

this project. The executing agency of it, is the Ministry of Transport (MOT), and it’s being

financed by Asian Development Bank (ADB) an the Government of VietNam.

According to original design, Noi Bai - Lao Cai highway has a total length of about 262.4 km,

passing through 72 communes and 18 districts of provinces and cities as Ha Noi, Vinh Phuc,

Vinh Yen, Yen Bai, Phu Tho, and Lao Cai.

The construction of project is divided into two phases, in which the first phase will construct

244 km with 4 lanes from Ha Noi to Yen Bai and 2 lanes from Yen Bai to Lao Cai. The

second phase will be the widen section of the former with 6 lanes from Ha Noi to Yen Bai

and 4 lanes from Yen Bai to Lao Cai (Chinese border, 262 km).

Construction of the whole project, first phase, is divided into 8 packages including A1, A2,

A3, A4, A5, A6, A7 and A8. All of them have already begun their construction activities. The

length, location and the status of works in each package are described in the following

paragraphs.


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- Package A1 is about 26,60km of length with start point at station Km 0+070 and finish

at station Km 26+700. Package A1 goes through the Soc Son district of Hanoi City

and Vinh Phuc province. Working.

- Package A2 is about 22.120km of length and goes through the Vinh Phuc province

and a little of Phu Tho province. Package A2 has start point at station Km 26+700

and finish at station Km 48+820. It must cross Lo River, with a long bridge. Working.

- Package A3 is about 32.240km of length with start point at station Km48+360 and

end point at station km80+00. Package A3 goes through the Phu Tho province. The

Contractor divided Package A3 into 7 sections and 17 big and small bridges. The

most significative is the bridge to cross over Red River. Working.

- Package A4 has beginning point at km 80+000 of Cam Khe district, Phu Tho province

and ending point at Km109+750 of Tran Yen district, Yen Bai province. Total length is

29.750 m. Working.

- Package A5 has beginning point at Km109+750 of Tran Yen district, Yen Bai

province and ending point at Km150+900 of Van Yen district, Yen Bai province. Total

length is 41.150 m. Working.

- Package A6 lengthens from beginning point Km150+900 of Van Yen district, Yen Bai

province to Km190+420 of Van Ban district, Lao Cai province. Total length is 39.520

m. Almost alignment goes in through high mountains of Yen Bai and Lao Cai

province and overcome natural streams by 18 bridges. This section also includes 1

tunnel under range of mountain at Km186+500. Working.

- Package A7 lengthens from beginning point Km190+420 of Van Ban district, Lao Cai

province to Km 218+040 of Bao Thang district, Lao Cai province. Almost alignment

also goes in through high mountains and 18 bridges are needed. Khe Sang bridge is

the biggest one with a length of 287m. Working.

- Package A8 begins in station Km 218+040 of Bao Thang district, Lao Cai province

and finishes in Km 244+155 of Bao Thang district, Lao Cai province. 6 bridges

overcome streams and natural valleys. Suoi Trat bridge is the biggest one with the

length of 374,8m. Working.


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The environmental monitoring program is carried out in compliance with regulations of

Vietnam Government and ADB safeguard policy in order to control environmental impacts

and ensure the environment is well preserved. The VEC proponent should perform

environmental protection measures stated in the EIA report as well as requirements written in

the approval decision made by MONRE. In accordance with article 23 of the Environmental

Protection Law and article 15 of Decree 80/2006/ND-CP, MONRE will organize, direct, and

monitor the environmental protection measures performed by VEC as stated in the EIA

report approved.

At present, this environmental monitoring program is being undertaken by Environmental

specialists of Getinsa hired by Vietnam Expressway Corporation (VEC). EPMU, the Project

Manager, monitors the environmental protection measures for the contractors carrying on

their works incompliance with the environmental control and protection plan in the contract.

In addition to that, during monitoring process, the environmental specialists and contractors

will try to find out and mitigate unanticipated environmental impacts arising from the project

construction process.


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2. CONSTRUCTION WORKS PROGRESS DURING THE PERIOD

In this chapter, they are included all the works already done or in process during the period,

in each package and detailing the section where the works are developed.

2.1 PACKAGE A1

January

Sec 1: Km 0+900 ~ Km 4+350 Site clearing, Excavation and

Embankment work

Sec 2: Km 0+080 ~ Km 1+000 & Km

4+350 ~ Km 7+661 Site clearing and Embankment work

Sec 3: Km 7+661 ~ Km 10+771 Site clearing and Embankment work

Sec 4: Km 10+771 ~ Km15+030 Site clearing and Embankment work





Underpass QL2 Eearth work

Tan Loi bridge Bored pile work

Xuan Phuong bridge (Km 7+660.05) Mobilizing equipment and man power

NTT bridge (Km 7 + 854.7) Pier and PIC girder

Ba Thien bridge (Km 14+026)

I.C 3 bridge (Km 14+590) Pier and PCI girder

Bon bridge (Km 15+107) Bored pile work

TL302B bridge (Km 15+825) Foundation and pier work

TL-TK bridge (Km 19+120.05) Pier and PCI girder work

Cam I bridge (Km 21+910.05) Foundation and Pier work

Cam II bridge Bored pile work

TL302CII bridge (Km 22+480.05) PCI girder work

Army I bridge Bored pile work

NH2B bridge (Km 24+946) PCI girder work

February

Sec 1: Km 0+900 ~ Km 4+350 Site clearing and embankment work


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Sec 2: Km 0+080 ~ Km 1+000 & Km


Sec 3: Km 7+661 ~ Km 10+771 Embankment work

Sec 4: Km 10+771 ~ Km15+030 Embankment work





Underpass QL2 Excavation work

TL402 bridge (Km 3+053.55) Structure work

Trung Kien bridge (Km 4+491) Bored pile and abutment

Dai Duong bridge (Km 7+392.65) Bored pile and abutment

Xuan Phuong bridge (Km 7+660.05) No activities


Ba Thien bridge (Km 14+026) Substructure work



TL302B bridge (Km 15+825) Detour road work


Cam I bridge (Km 21+910.05) Substructure work

Cam II bridge Substructure work

TL302CII bridge (Km 22+480.05) PC voided Slab

Army I bridge Substructure work


March

Sec 1: Km 0+900 ~ Km 4+350 Site clearing and embankment work

Sec 2: Km 0+080 ~ Km 1+000 & Km



Sec 4: Km 10+771 ~ Km15+030 Embankment work





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Underpass QL2 Excavation work

TL402 bridge (Km 3+053.55) Structure work

Trung Kien bridge (Km 4+491) Bored pile and abutment

Dai Duong bridge (Km 7+392.65) Bored pile and abutment

Xuan Phuong bridge (Km 7+660.05) Substructure work


Ba Thien bridge (Km 14+026) Substructure work



TL302B bridge (Km 15+825) Substructure work


Cam I bridge (Km 21+910.05) Substructure work

Cam II bridge Substructure work

TL302CII bridge (Km 22+480.05) PC voided Slab & launching girders

Army I bridge Substructure work


2.2 PACKAGE A2

January

Sec 1: Km 26+700~Km 32+700 Site clearing, embankment and backfill

Sec 2: Km 32+700~Km 35+300 Site clearing and embankment

Sec 3: Km 35+300~Km36+910 Site clearing and embankment


Sec 5: Km 39+580~Km 40+690 Site clearing and earthworks




TL310 bridge (~Km 29+200) Bored pile works

Army II bridge (Km 27+015) Bored pile works

Army III bridge (Km 28+010)

Phung Nguyen bridge (Km 39+188) Pier works


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Lo river bridge (Km 48+000) Equipment mobilization and bored pile works

February

Sec 1: Km 26+700~Km 32+700 Site clearing; embankment; remove unsuitable

material

Sec 2: Km 32+700~Km 35+300 Site clearing; embankment

Sec 3: Km 35+300~Km36+910 Embankment

Sec 4: Km 36+910~Km 39+850 Embankment




Sec 8: Km 45+300~Km 47+660 No activities

Army II bridge (Km 27+015) Framework mobilization

Army III bridge (Km 28+010) Framework mobilization

TL310 bridge (~Km 29+200) Bored pile and foundation work

Tan Dung bridge Bored pile work

Ben Gao bridge Bored pile work

Song Dao bridge Bored pile work

Phung Nguyen bridge (Km 39+188) Sub-structure work and PCI girder

Lo river bridge (Km 48+000) Bored pile work

March

Sec 1: Km 26+700~Km 32+700 Site clearing; embankment; remove unsuitable

material

Sec 2: Km 32+700~Km 35+300 Site clearing; embankment

Sec 3: Km 35+300~Km36+910 Embankment





Sec 8: Km 45+300~Km 47+660 No activities

Army II bridge (Km 27+015) Substructure work

Army III bridge (Km 28+010) Substructure work

TL310 bridge (~Km 29+200) Bored pile and substructure work

Ben Tre bridge (Km 31+068) Bored pile work


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Tan Dung bridge (Km 31+245.05) Bored pile work

Ben Gao bridge (Km 35+211.05) Bored pile work

TL305 bridge (Km 37+951.55) Bored pile work

Song Dao bridge (Km 38+450.05) Bored pile work

Phung Nguyen bridge (Km 39+188) Sub-structure work and void slap girder

Lo river bridge (Km 48+181.30) Bored pile work

2.3 PACKAGE A3

January

TL323B Bridge – Km 51 Sub - structure

Bai Bang railway Flyover - Km60+967.05 Finished: 70 bored piles(left 35 bored piles)

IC8 - Km54+640 Preparation of bore pile space

Red river Bridge – km77+800 Drilling the first bore pile

National railway flyover – Km77+246 Finished: 60 bored piles (stop work)

Section 1: Km48+360-Km54+000 Site clearing and excavation&filling work


Section 3: Km59+600-Km65+390 Embankment work and topsoil remove




Section 7: Km77+620-Km80+000 Not yet active (Obstruction)

February

TL323B Bridge – Km 51 Sub – structure

Bai Bang railway Flyover - Km60+967.05 Finished: 75 bored piles(left 30 bored piles)

IC8 - Km54+640 Finished: 34 bored piles ( preparation to sub-

structure)

Red river Bridge – km77+800 Finished: 7 bored piles

National railway flyover – Km77+246 Sub - structure






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March

TL323B Bridge – Km 51 Execute sub-structure

BaiBang railway Flyover - Km60+967.05 Finished: 75 bored piles (stop work because rain)

IC8 - Km54+640 Execute sub-structure (stop work because rain)

Red river Bridge – km77+800 Finished: 11 bored piles

National railway flyover – Km77+246 Execute sub-structure

Ho Chi Minh IC- Km65+540 Finished: 2 bore piles

Section 1: Km48+360-Km54+000 Excavation & filling work

Section 2: Km54+000-Km59+600 Earth work and Implement box culvert

Section 3: Km59+600-Km65+390 Embankment work and Implement box and pipe

culvert



Section 6: Km73+070-Km77+620 Excavation & filling work and Implement pipe

and box culvert


2.4 PACKAGE A4

January

Ngoi Lao Bridge - Km77+200 Topographic drilling

Ngoi Van bridge – Km108+960 Topographic drilling

Dam Nang Bridge – Km108+227 Topographic drilling

Section 1: Km80+00-Km85+000 Not yet worked


Section 3: Km89+600-Km96+200 Site clearing




February

Ngoi Lao Bridge - Km77+200 Topographic drilling


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Ngoi Van bridge – Km108+960 Topographic drilling

Dam Nang Bridge – Km108+227 Topographic drilling

Section 1: Km80+00-Km85+000 Not yet working






March

Ngoi Lao bridge Km97+100 Preparation place for drilling bore pile

Ngoi Gianh bridge Km88+700 Not yet work

Ngoi Van bridge Km108+960 Preparation place for drilling bore pile



Section 3: Km89+600-Km96+200 Site clearing and top soil remove




2.5 PACKAGE A5

February

Section 1: Km109+750 - Km115+800 Site clearing work



Section 4: Km125+000 - Km130+000 Not yet active

Section 5: Km130+000 - Km136+400 Checking existing ground


Section 7: Km142+000 - Km148+000 Not yet active


March

Section 1: Km109+750 - Km115+800 Site clearing and excavation & filling work




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2.6 PACKAGE A6

January

Ngoi That bridge Access road

Ngoi Rom bridge Excavation of Foundation and inspection

Ngoi Cong bridge Excavation of Foundation, Bored Pile

preparation

Ngoi Giam I bridge Excavation of Foundation, Board pile

preparation

Ngoi Giam II bridge Assembly of footing rebar and formwork

Ngoi Hut bridge Excavation of Foundation

Ngoi Chac bridge Existing ground elevation inspection

Ngoi Pha bridge Existing ground elevation inspection

Ngoi Nhuoc bridge Excavation of Foundation (A1, A2), temporary

access road

Lang Nhay bridge Excavation of Foundation

Ngoi Don bridge Excavation of Foundation

Suoi Nau bridge Excavation of Foundation

Suoi Quan bridge Excavation of Foundation

Section 1: Km150+900 -

Km156+000

Site clearing and excavation & filling work


Km162+000



Km165+000



Km168+000


Section 5: Km168+000 - Site clearing and excavation work


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Km172+000


Km176+713



Km182+214



Km186+200

Site clearing and excavation work


Km190+420


February

Ngoi That bridge Structural Excavation without cofferdam

Ngoi Rom bridge Excavation of Foundation and inspection

Ngoi Cong bridge Excavation of Foundation, Bored Pile

preparation

Ngoi Giam I bridge Structural Excavation without cofferdam

Ngoi Giam II bridge Structural Excavation without cofferdam

Ngoi Hut bridge Structural Excavation without cofferdam



Ngoi Nhuoc bridge Structural Excavation without cofferdam

Lang Nhay bridge Structural Excavation without cofferdam

Ngoi Don bridge Structural Excavation without cofferdam


Suoi Quan bridge Structural Excavation without cofferdam

Lang Lau bridge Structural Excavation without cofferdam


Km156+000



Km162+000



Km165+000



Km168+000



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Km172+000



Km176+713



Km182+214



Km186+200



Km190+420


March

Ngoi That bridge Structural Excavation without cofferdam

Ngoi Rom bridge Structural Excavation without cofferdam

Ngoi Cong bridge Structural Excavation without cofferdam

Ngoi Giam I bridge Structural Excavation without cofferdam

Ngoi Giam II bridge Structural Excavation without cofferdam

Ngoi Hut bridge Structural Excavation without cofferdam



Ngoi Nhuoc bridge Structural Excavation without cofferdam

Lang Nhay bridge Structural Excavation without cofferdam

Ngoi Don bridge Structural Excavation without cofferdam


Suoi Quan bridge Structural Excavation without cofferdam

Lang Lau bridge Structural Excavation without cofferdam

Dai Viet bridge Structural Excavation without cofferdam









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2.7 PACKAGE A7

January

Khe Sang bridge Bore pile by manpower, 3 hole

Casting Abutment A1 (Class 2)

Khe U bridge Casting Abutment A1 (Class 2)

Tan An Bridge Structure excavation without cofferdam

Khe Can bridge Spread foundation P1

Khe Dai bridge Casting Abutment A1

Section 1: Km190+420-Km201+000 Rock excavation to fill; common excavation

and unsuitable material

Section 2: Km201+000-Km207+000 Rock excavation to fill; common excavation

and unsuitable material

Section 3: Km207+000- Km218+040 Common excavation and unsuitable material

February

Khe Sang bridge Casting Pier P2

Tan An Bridge Reinforcing steel bar

Section1: Km190+420-Km201+000

Rock excavation to fill

Unsuitable material

Common excavation

Section2: Km201+000-Km207+000 Rock excavation to fill and unsuitable

material

Section3: Km207+000-Km218+040


Unsuitable material

Common excavation

March

Section1: Km190+420-Km201+000 Unsuitable material and common excavation

Section2: Km201+000-Km207+000


Unsuitable material

Common excavation


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Section3: Km207+000-Km218+040 Unsuitable material and common excavation

Khe Sang bridge Reinforcing steel bar

Khe U bridge Reinforcing steel bar

Khe Can bridge Spread foundation P1

Chau Que Thuong bridge Bored pile works

Xom Danh bridge Spread foundation P1

2.8 PACKAGE A8

January

IC18 Ram A1 bridge Km 244+ 570 Bored pile works – Pier P1 and P2

Suoi Trat bridge Bored pile works – Pier P6

Ngoi Bo bridge Bored pile works – Pier P2

Section 1: Km218+300-Km225+000 Unsuitable material and common excavation




Section 5: Km235+000-Km238+000 Unsuitable material

Section 6: Km238+000-Km244+000 Excavation and embankment



February

Section 1: Km218+080-Km223+000 Common excavation

Section 2: Km223+000-Km225+000 Unsuitable material



Section 5: Km232+000-Km235+000 Embankment



Suoi Trat bridge Bored pile work

Ngoi Bo bridge Bored pile work

March



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Suoi Trat bridge Bored pile work

Ngoi Bo bridge Bored pile work

IC18 Ram A1 Km 244+ 570 Bored pile work


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3. CARRIED OUT TASKS DURING THE PERIOD

During the period of reference for this quarterly report, the environmental tasks carried out by the specialists were the following. The Weekly

Reports have been included in the corresponding Monthly Reports. So, it’s considered not necessary or useful to include again in this report.

3.1 PACKAGE A1

January

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

General Inspection in site

Punctual Inspection in site

Submitted Weekly Report

Submitted letters/notifications

Weekly/Monthly meetings

February

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






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March

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






3.2 PACKAGE A2

January

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31







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February

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






March

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31







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3.3 PACKAGE A3

January

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






February

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






March

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31



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3.4 PACKAGE A4

January

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






February

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31





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March

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






3.5 PACKAGE A5

February

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31







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March

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






3.6 PACKAGE A6

January

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






February

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31


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March

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






3.7 PACKAGE A7

January

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31



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February

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






March

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31







29 | P a g e

3.8 PACKAGE A8

January

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






February

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31






March

TASK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31



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4. ENVIRONMENTAL MONITORING RESULTS. COMPLEMENTARY MEASURES TO

BE APPLIED

4.1 PROBLEMS AND RECOMMENDATIONS. SUMMARY TABLE

4.1.1 Package A1

JANUARY

No Description Location Solution Responsible

1

Untidy and Unclean

sites and worker’s

camps

NH2B bridge

Collect debris,

rearrange site and

camp; implement

safety housekeeping

work every day

POSCO

2 Worker’s camps are

without septic tanks

TL302CII

bridge

Install the backhouse

with septic tanks for

workers

POSCO

3 Backhouses are not

suitable

I.C3 and NH2B

bridge

Install the suitable

backhouse with septic

tanks for workers

POSCO

4

Mud after recycling

bentonite spilled into

river

Bon bridge

Collect mud and

dispose of it properly;

install sediment trap to

prevent spill/leak of this

material onsite/offsite;

remove sediment

periodically

POSCO

FEBRUARY


1 Oil leaked on sites

Trung Kien

bridge; Km

17+100; Km

19+300

Place oil tray under

equipment during

maintenance

POSCO

2 Mud after recycling

bentonite spilled into

Trung Kien

bridge

Install sediment basin

with enough capacity POSCO


32 | P a g e

river and remove mud

periodically

3 Riverside is eroded Xuan Phuong

bridge

Install temporary pile

culverts with enough

capacity and

appropriate with high

velocity

POSCO

4 Backhouses are not

suitable

I.C3 and NH2B

bridge

Install the suitable

backhouses with septic

tanks for workers;

always keep septic

tank in cleanliness and

sanitary condition

POSCO

5 Concrete waste was

discharged on site TL402 bridge

Collect discharged

concrete waste and

dispose of it properly;

only discharged

concrete waste in

designated areas

POSCO

6 Worker’s camp without

septic tank

TL302CII

bridge

Provide enough

sanitary facilities for

workers

POSCO

MARCH


1 Drilling mud spilled into

river

Tan Loi bridge

(abutment 2)

Use sediment trap to

temporarily store mud POSCO

2 Oil leaked on site Tan Loi bridge

(abutment 2)

Collect contaminate soil

and check equipment

before work

POSCO

3

Washout concrete

vehicle out of

designated area

Tan Loi bridge

(abutment 2)

Collect disposed

concrete and dispose of

it properly; only washout

equipment and vehicle in

designated area

POSCO


33 | P a g e

4

Untidy and Unclean

sites and worker’s

camps

NTT bridge

and NH2B

bridge

Collect debris, rearrange

site and camp;

implement safety

housekeeping work

every day

POSCO

5 Worker’s camps are

without septic tanks

I.C3 and

TL302CII bridge

Install the backhouse

with septic tanks for

workers

POSCO

4.1.2 Package A2

JANUARY


1 Channel was block by

erosion

Tan Dung

bridge

Dredge channel,

stabilize slopes, inlet

and outlet of culvert

POSCO

2 Mud spilled into river Ben Gao

bridge

Dredge the river, apply

the sediment and

erosion control

measures

POSCO

3 Bentonite leaked offsite Ben Gao

bridge

Check and repair

leaking point, collect

leaked bentonite, apply

the sediment control

measures

POSCO

4

Site was dirty with

debris and leftover

material

Tan Dung

bridge

Clean the site and

implement the safety

housekeeping work

often

POSCO

5

Fueling areas are not

applied the

environmental

protection measure well

An Phat 1

section; Ben

Bao bridge

Apply the

environmental

protection measure at

fueling areas

POSCO

FEBRUARY


34 | P a g e


1 Casing was put in the

stream

Tan Dung

bridge

Remove the casing out

of water body when

workers back to work

POSCO

2 Small leak of oil Ben Gao

bridge

Always place the drip

pan under fuel pile

during fueling

equipment

POSCO

3 Mud after recycling

bentonite leaked offsite

Lo river bridge

– abutment 1

Collect the leaked mud

and repair the silt fence POSCO

4 Bentonite slurry leaked

in river

Lo river bridge

– pier 4

Patching holed points

and usually check for

and repair leak points

POSCO

5 Construction site is kept

in untidy condition

Lo river bridge

– abutment 2

Rearrange the site

when the workers back

to work

POSCO

6

Septic tanks were

obstructed and not

available for use

Lo river bridge

- worker’s

camp –

abutment 2

Empty and clean septic

tank POSCO

7 Water flow was blocked Song Dao

bridge

Reinstall new

temporary stream

crossing with suitable

pipe culverts

POSCO

MARCH


1

There no septic tank

was installed for

workers

TL402 bridge Provide enough sanitary

facilities for workers POSCO

2

Mud after recycling

bentonite leaked offsite

and to be discharge into

adjacent paddy field

Trung Kien

bridge

Install sediment basin

with enough capacity

and remove mud

periodically

POSCO

3 Mud and bentonite Bon bridge Install sediment trap; POSCO


35 | P a g e

slurry were discharged

into watercourse

store mud in sediment

trap and it must be

removed periodically;

ensure all the mud and

bentonite will be not

discharged or leak offsite

4

Temporary stream

crossing with not

enough capacity pipe

culvert

Riverside is eroded

Xuan Phuong

bridge

Install temporary pipe

culverts with enough

capacity and appropriate

with high velocity

Stabilize the inlets and

outlets of pipe culverts

POSCO

5 There was small leak of

oil Bon bridge

Apply the measures to

prevent leak of oil such

as place drip pan under

nuzzle; check and repair

leaked points

POSCO

6

Temporary pipe culverts

are not enough capacity

and easy to be blocked

by erosion and

sedimentation

Km 0+775; Km

2+280 ~ Km

2+960

Reinstall temporary pipe

culverts with suitable

capacities; stabilize

inlets and outlets of

temporary pipe culverts

to prevent erosion and

sedimentation blocking

water flow

POSCO

4.1.3 Package A3

JANUARY

No. Problem description Location Solution Responsible


36 | P a g e

1

Many superfluous

material are thrown

away in site.(fragment

of iron and bentonite

sacks)

Km60+900,

Km77+800

The Contractor must

control their worker and

clean site immediately.

POSCO

2

Oil tank is need to

installed safety

measure before using

in site

IC8-

Km54+640

The contractor must install

safety measure for oil

tanks follow the

Consultant's letter

regarding "instruct to fuel

in site"

POSCO

3 Waste Bentonite were

pour into surrounding. Km60+900

Contractor must make a

sediment control pond to

collect all mud Bentonite

POSCO

4 Many rubbish in site

Km51,

Km60+900,

Km73

The Contractor must

collect all rubbish in site

every day strictly follow

ECP.

POSCO

5 Oil is leaked out

ground Km54+600

Contractor must collect all

oil on ground by dry sand

then thrown away with

waste in site.

POSCO

6

Drainage canal is

prepared to build pipe

culvert.

Km51

The Contractor must pay

attention to maintenance

irrgation and drainage

POSCO

FEBRUARY



37 | P a g e

1

Dump trucks are over

load and don't cover

when they transport

material from borrow

pit to construction site.

Km71

The Contractor must cover

dump trucks and never

over load.

POSCO

2 Bentonite pour into

ground. Km77+700

The Contractor must

collect all fallen bentonite

on ground and control it

carefully.

POSCO

3 Much rubbish is near

worker's camp Km74+300

The Contractor must

collect all rubbish in site or

near worker's camps.

POSCO

4 Bridge construction site

is not cleaned Km54+600

The Contractor must

remove all mud bentonite

after few days when it's

dryer.

POSCO

5

The access road need

to be reinforced. It's too

much mud on surface.

Therefore, it's much

dust on dry days and

equipment can not

tranfer on rainy days.

Km77+700

(Red River

bridge),

Km54+600

(IC8)

The Contractor is

requested to spread stone

on surface of access

roads to improve it.

POSCO

MARCH


1

Dump trucks are over

load and don't cover

when they transport


pit to construction site.

Km71

The Contractor must cover

dump trucks and never

over load.

POSCO


38 | P a g e

2

Unsuitable material

was piled up in site.

Km68,

Km77+200

The Contractor has to

complete all legal

documents for disposal

and transport unsuitable

material to disposal area

after it stop rain.

POSCO

4.1.4 Package A4

JANUARY


1

Existing roads need to

be watered on dry days

by contractor. Dust is

much in the air.

Km93+260,

Km92+460

The Contractor must

water these existing

roads appropriatly on dry

days.

KEANGNAM

2

Drainage canal was

broken by excavator of

project.

Km102+250

The Contractor must give

their whole mind to

maintenance irrgation

and drainage follow

approval ECP.

KEANGNAM

FEBRUARY


1 Dump trucks are not

covered. Km89+800

The Contractor is

requested to cover and

never over load all dump

trucks.

KEANGNAM

2

Worker's camps

weren't installed

hygiene toilet and

waste bin.

General

The Contractor must

install hygiene toilet and

waste bin at all worker's

camps follow approval

ECP.

KEANGNAM

MARCH


39 | P a g e


1

Worker's camps

weren't installed

hygiene toilet and

waste bin.

General

The Contractor must

install hygiene toilet and

waste bin at all worker's

camps follow approval

ECP.

KEANGNAM

2

Earth is fallen to

drainage canal. It will

be blocked in near

future

Km108+965

The Contractor must

dredge all fallen earth in

drainage canal bed and

reinforce side of this

access road to avoid fall

solid substance into

drainage canal.

KEANGNAM

3

The dump trucks do

not cover and over load

when it transports


pit to the construction

site.

Km105+600

The Contractor must

cover all dump truck and

never load.

KEANGNAM

4

The surface of existing

road has much fallen

earth.

Km105+600

The Contractor has to

clean fallen earth on

existing road and water

appropriately on dry

days.

KEANGNAM

4.1.5 Package A5

FEBRUARY



40 | P a g e

1

During construction,

The unsuitable soil

prevented the water

flow of some the

ditches

Km119+000 –

Km119+700

Conducting and

instruction of Engineer

in the letter,

GET3/KEANGNAM/A5/

110 dated on 16th

February 2011

KEANGNAM

2

The Contractor has not

been Submit

Environmental

Monitoring Plan to the

Consultant for review

General

The Contractor must

submit Environmental

Monitoring Plan to the

Consultant and

implement to monitoring

environmental indicator

KEANGNAM

MARCH


1

At station Km118+930

during material

transportation, there is

much soil falling down

on provincial road.

Km118+930

Conducting the

instructions of Engineer

in letter,

GET3-KEANGNAM-11-

A5-002 dated on 3rd

March 2011.

KEANGNAM


41 | P a g e

2

At station Km122+030:

when it rains heavily, if

the Contractor don’t

take care and organize

the protection methods,

soil erosion might

happen leading to

erosion of Access

Road, which affects

safety of the Project.

Km122+030

Conducting the


in letter,

GET3-KEANGNAM-11-

A5-023 dated on 17th

March 2011

KEANGNAM

4.1.6 Package A6

JANUARY


1

When transporting

materials, many trucks are

not covered with canvas.

Some section

of package

A6 Implement the


in letter

GET3/DOOSAN/A6/394

dated on 30th

December 2010

DOOSAN

2

Soil was disposed into the

stream, which prevents the

water flow.

Km162+900

(Ngoi Giam

bridge);

Km 159+200

(Ngoi Cong

bridge):

3

There is much soil falling

down on the road during

material transportation.

Km155;

Km157;

Km159;

Km161;

Km172+600;

Km173;

Implement the


in letter

GET3/DOOSAN/A6/412

dated 7th January 2011

DOOSAN

4

Unsuitable materials were

disposed near the Red

River.

Km187+500

Implement the


in letter

DOOSAN


42 | P a g e

5

There is much unsuitable

material had been

disposed into the area that

the Contractor did not

submit as disposal area.

Km171+900

GET3/DOOSAN/A6/435

dated on 18th January

2011

6 Approval of disposal areas

for unsuitable material.

Km188+200;

Km190+110;

Implement the


in letter

GET3/DOOSAN/A6/460

dated on 24th January

2011

DOOSAN

FEBRUARY


1 Unsuitable soil disposed

near the river bank

Km161+100;

Km185+600;

Km165+050;

Conducting and


in the letter,

GET3/DOOSAN/A6/518

dated on 23rd Feb 2011

DOOSAN

2

During construction

material transportation,

many the trucks are not

covered with canvas.

Km186+740

Conducting and


in the letter,

GET3/DOOSAN/A6/518


DOOSAN

3 The waste water disposed

directly into the river.

Batching plant

at Km165

(Stone White

VINA

Subcontractor

Conducting and


in the letter,

GET3/DOOSAN/A6/518


DOOSAN

4

Environmental Monitoring

Plan has not been

submitted yet to Engineer

for review

General

Conducting and


in the letter,

GET3/DOOSAN/A6/519


DOOSAN


43 | P a g e

MARCH


1

The living conditions of

workers at their camp, who

are working at station

Km190+100 are bad. The

worker’s camp here has

not toilet, no sewage

treatment system

Km190+100

Conducting the


in letter,

GET3-DOOSAN-11-A6-

033 dated on 12th

March 2011.

DOOSAN

2

There are many errors in

the Contractor’s

Environmental Monitoring

Plan

General

Conducting the


in letter,

GET3-DOOSAN-11-A6-

050 dated on 21st

March 2011.

DOOSAN

3

At station Km172+300: this

station is near a pound,

when it rains heavily, if the

Contractor don’t take care

and organize the

protection methods, soil

erosion might happen

leading to erosion of pond

edge, which affects safety

of the Project

Km172+300

Conducting the


in letter,

GET3-DOOSAN-11-A6-

034 dated on 14th

March 2011.

DOOSAN

4.1.7 Package A7

JANUARY



44 | P a g e

1 Fire on the construction site.

Km191+353

Contractor must warn the workers about the dangers of fires on the works. In addition, it causes environmental pollution and the risks of explosion.

GRBCC

2

Dangerous roads can cause accidents to traffic participants.

Km194+200;

Required construction urgently installs advertising sign at the above locations.

GRBCC

3 The construction site is very indiscriminately unhygienic.

Km209+300;

Km191+353

Contractor should install garbage bins and transport to the prescribed treatment.

GRBCC

4 Electrical safety. Km207+935

Contractor has to train and direct workers the way of using electricity safety.

GRBCC

5 Safety for gas and oxygen tanks.

Km204+581;

The Contractor shall warn workers about the risks, dangers to workers have preventive measures.

GRBCC

6

Some landfills have been planted grass under the Consultant's guidance.

Km195+800

Requiring Contractor continue to planting grass at the remained locations under Consultant's guidance.

GRBCC

7

Unsuitable material disposals are resolved completely under the direction of the Environmental Police Lao Cai and supervision consultant.

Km194+200;

Km195+800;

Km199+500;

Km207+000

The location of landfill containing unsuitable material disposals is excavated. The soil which was dropped into the riverbed has transported and a grass has been planted to avoid, returned landscape to environment.

GRBCC


45 | P a g e

8

The contractor installed warning signs for traffic safety at the construction location of the cross-roads.

Km194+200

The Contractor recorded and implemented timely the Supervision Consultant's directions.

GRBCC

9

Rocks and soil fell into river-bed to obstruct the flow and polluted water environment.

Km204+581

Requiring the Contractor to dredge a river's flow, prevent water pollution of the rivers and streams

GRBCC

FEBRUARY


1

Rubbish and soil flew into the stream and obstruct the follow and cause water pollution.

Km191+353

Km204+581

Require the contractor to fish waste out of the stream, clear and return natural flow to the stream.

GRBCC

MARCH


1

Rubbish is untidily discharged into the works near worker's camps

The caste culvert No1 at Km194+670

Require the subcontractor to collect rubbish and transported to the approved wasteland areas.

GRBCC

2

Some landfills are requested to plant trees and grass in order to protect from eroding and land sliding into Red River.

Km190+400; Km195+800; Km199+500

Require the contractor to have plan for re-planting grasses in March because this time is good for trees and grasses to grow.

GRBCC

3 The flow is blocked while executing.

Km194+765

Km209+329

Require the subcontract to implement measure to dredge and clear the flow

GRBCC

4

There is no toilet and the garbage collection bins for worker at the worker's camps.

Km190+487

Require the subcontract to build the toilet and install garbage collection bins for workers.

GRBCC


46 | P a g e

4.1.8 Package A8

JANUARY


1

At the construction site of Suoi Trat bridge, bentonite outflow to stream.

Km 232+890

Requiring Contractor to have waste bentonite tank during the process of drilling borrow piles.

VINACONEX

2

At worker's camps of Viet Dung Co.,ltd and Tuan Tu Co.,ltd, the waste oil outflow to the ground.

Km232+900;

Km237+060

Requiring contractor to have trays for prevention of waste oil from out flowing to the ground during the maintained process.

VINACONEX

3

At the construction site of Ngoi Bo bridge, material disposals of borrow piles is not being transported to the landfill.

Km238+265

Contractor must have tray for containing material disposal of borrow piles and transport it to the approval wasteland area.

VINACONEX

4

There were not sandbags at the foot of surrounding wall at the location of IC18 bridge as consultant's guidance.

Km244+570

Contractor must seriously perform this problem follow consultant’s guidance.

VINACONEX

5

Domestic waste is not being collected and transported to the place of prescribed treatment.

Km232+900

Requiring contractor to install 02 rubbish bins at least for each worker's camp.

VINACONEX

6

At the construction site of Suoi Trat bridge has collected holes of bentonite. However, in the process of collecting, bentonite outflow to stream.

Km 231+890

Requiring Contractor to have measure for managing and collecting strictly waste bentonite, and preventing it from overflowing.

VINACONEX


47 | P a g e

7

According to Consultant's guidance, contractor use sand bags at the wall's foot.

Km244+570 VINACONEX

8 Labour safety while during the process of construction.

Km231+890;

The casting station of Tuan Tu Co., Ltd

Contractor is required to equip labour protection for workers. Contractor reminds workers to wear labour protections during the process of construction.

VINACONEX

9

At construction site of Suoi Trat bridge, Bentonite overflows into the stream and polluted water resource.

Km 231+890

Requiring the contractor have to manager and collect bentonite strictly to avoid overflowing out.

VINACONEX

10

At location of IC18 bridge, waste water and mud are overflows into the construction site and road.

Km244+570

The contractor must have measure of collecting waste water and mud during the process of construction.

VINACONEX

11

At the location of Suoi Trat bridge, electrical wires and circuit breaker are not safe.

Km231+890

The contractor is required to hang up at least 3 meter above the ground and the circuit breaker must be placed in secure location.

VINACONEX

FEBRUARY


1

Soil and benite overflow into the stream to obstruct the flow and cause water pollution.

Km 231+890

Require the contractor to collect and transport the above soil and bentonite to the approved wasteland area and return a natural flow to the stream.

VINACONEX

2

Unsuitable materials is not transported to the approved wasteland area

Km238+265

Require the contractor to transport total unsuitable disposal materials to the approved wasteland area.

VINACONEX


48 | P a g e

3

Waste is discharged untidily at the worker’s camps of Vinaconex 34

Km241+000

Require the contractor to collect and transport soild waste to the place of treatment prescribed.

VINACONEX

MARCH


1

The subcontractor has transported soil and bentonite to dredge the flow and return natural flow to this stream.

Km 231+890 VINACONEX

2

Total unsuitable materila disposals are transported to the approved wasteland area.

Km238+265 VINACONEX

During the digging process of the bridge's post, waste land is not transported but left them near the river's side.

Km218+040

Require the contractor to transport the mentioned waste soils to the approved wasteland area.

VINACONEX

Waste land is provisionally collecting at the execution place.

Km238+265

Km244+570

Require the subcontractor to transport waste land away after completing every bored pile.

VINACONEX

The canal cut through the road-bed of the construction project

Km221+480

Require the subcontractor to maintain the flow of canals for production of the people before breaking away to do again the drainage system as designed.

VINACONEX


49 | P a g e

The canals are in site limited of construction areas

Km221+500- Km221+700

Require the subcontractor to work with People Committee to find solutions to maintain the irrigation system of the people and ensuring the progress of construction of the contractor.

VINACONEX

3

Bentonite is overflow into the stream while recovering

Km232+890

Require the contractor to dredge the entire quantity of bentonite that spilled down the stream and commit not to relapse this situation. If the contractor continues to violate, the Consultant will to stop giving payment related items.

VINACONEX


50 | P a g e

4.2 AIR QUALITY

4.2.1 Package A1

January

By observation during the month, we perceived that there is no significant impact on ambient

air quality detected. The weather is wet and many drizzling days in the month so the dust in

the air is reduced considerably. Besides, at the sensitive areas the Contractor has watered the

surface of existing roads suitably so the dust also is reduced.

Besides, the equipment and machineries have been checked before operation and at the

sensitive areas, the quantity of operation equipment are small so the air quality at these areas

are quite good.

At the I.C3, the backhouse is unsuitable so the fresh fecal matter is let in directly the

environment and this makes smell at this area although it is far away from the sensitive areas.

The PSC has requested the Contractor to remove this backhouse and install the new one

which meets standard with septic tanks to make sure the sanitary condition for workers and

protect the ambient environment.

February

During the month, the weather is wet with almost days of drizzle and after the New Year

holiday the quantity of construction work on the sites was small so the air at the sensitive areas

was not impacted by dust and exhaust fumes from equipment.

Besides, the PSC has inspected I.C3 and NH2B bridge construction sites in third week to

check the report of Contractor, however we didn’t see any improvement at these sections. The

fresh fecal matter is still let directly in channel and cause environmental pollution and bad

smell. The PSC has issued the letter and suspended the procedure of payment progress of

these sections.

In the fourth week, during the site inspection we found that the Contractor had removed the

unsuitable backhouses and fresh fecal matter together and the septic tank at I.C3 construction

site is being built. In addition, the septic tank at the NH2B bridge construction site was cleaned,

too. The PSC also recommended the Contractor to provide enough the sanitary facilities as

well as keep them in cleanliness condition for workers.


51 | P a g e

March

By observations during the month, we perceived that the construction activities of project did

not impacted adversely on ambient air quality, especially at the sensitive areas.

At the Km 4+220 (pagoda) and Km 19+650 (elementary school and resident area) there was

no construction work this month. At the Km 13+100 (resident area) the Contractor has watered

suitably the embankment surface and at QL2B bridge construction site the main construction

activity is launching PCI girders, therefore the level of dust in the air at these sections is

reduced.

4.2.2 Package A2

January

By observation during the month, we perceived that there is no significant impact on ambient

air quality detected. The weather is wet and many drizzling days in the month so the dust in

the air is reduced considerably. Besides, at the sensitive areas the Contractor has watered the

surface of existing roads suitably so the dust also is reduced.

Besides, the equipment and machineries have been checked before operation and at the

sensitive areas, the quantity of operation equipment are small so the air quality at these areas

are quite good.

February

During site inspections in month, we didn’t detect the adverse impact on ambient air quality

from the construction activities at the sensitive areas. Almost days of this month were drizzle

so the weather was wet and the quantity of construction work in this month was also small.

At the some interchange with existing roads such as TL305 bridge, TL309 bridge, Km 34+780,

we perceived that these section were clean and there was no sign of dirt or mud tracked onto

public roads during the site inspections.

The PSC has also recommended the Contractor to tightly control the construction sites to

make sure the negative impacts could be well mitigated.

March


52 | P a g e

During site inspection on March 23rd 2011, we detected that the level of dust in the air at the

detour road, TL305 bridge construction site was high. The PSC has requested the Contractor

to resolve this problem by watering suitably this stretch of detour road. Besides, the Contractor

was also requested to apply the measures to prevent tracking of dirt onto public road at this

section.

At other sections such as Km 34+780 (pagoda), Km 34+408.05 (TL309 bridge) we didn’t

detected the adverse impact on ambient air quality during site inspections in month.

In addition, we also recommended the Contractor to manage the construction sites well to

prevent negative impact on ambient environment.

4.2.3 Package A3

January

During recent January, Contractor has maintained fairly well surface of outside routing

assignment road (Km51, Km68, Km74+400...). Earth was scattered during tranport of materials

from mine to contruction site or inappropriate materials carried to dumping ground were

cleared. Besides, Contractor wetted road surface on dry days so dust was not much scattred in

the air.

February

In the first week (from 7th- 12th February), dust is much on access road from borrow pit to

construction site at Km71. Because the Contractor has not managed their sub-Contractor. All

dump trucks are over load and do not cover when they transport material from borrow pit to

construction site. The Contractor is warned to solve this violation matter immediately. They

must cover dump trucks and never over load. In the next week, when the Consultant inspected

on site, we have found that this matter is improved by Contractor.

In inspection tour on the third week (from 21st -26th February), the Consultant has found that

the access road at Km77+700 (Red river bridge) and Km54+600 (IC8) have much mud on

surface. That is a reason why in the dry days that road has much dust in the air. The

Consultant warned the Contractor of above matter and will recheck after 1 week.

March


53 | P a g e

Almost days in March, it was rain much. Therefore, there is no dust in the air. According result

of Environmental monitoring all the environmental pollutant ambient air arising from

construction activities in site is within the limits by Viet Nam standard (QCVN05:2009/BTNMT;

QCVN 06:2009/BTNMT; QCVN 27:2010/BTNMT). Detail of analysing for reference in Report

on Environmental monitoring March, 2011.

4.2.4 Package A4

January

Pursuant inspection tour from 17th to 21th January, 2011, the Consultant has found that there

were many fallen earth on surface of the road at stations Km96+400, Km92+280 – Km92+760,

Km93+260 which is the result of transport material or unsuitable material. The situation of this

road is particularly serious. The Consultant has warned the Contractor has to water

appropriately and recheck in next time.

February

The situation of air quality in February has not much changed against in January. The access

road or existing road are path way (Km92+280, Km93+260, Km89+800). Therefore the

Contractor is requested to water appropriately in dry days to avoid dust in the air.

In inspection tour on 21st -26th February, the Consultant has detected some dump trucks were

not covered. Earth was fallen on access road. The Contractor is requested to cover dump

trucks carefully and never over load. We will recheck in next week if this situation is still

continuous the Consultant will make site minutes.

March

It was rain in many days during March. Therefore, it is no dust in the air. But in inspection tour

on March 21st-26th, 2011, the Consultant has detected some dump trucks was not covered

and over load at Km105+600. Earth was fallen much on the surface of existing road. The

Contractor is requested to cover all dump truck and never over load when it transfers on

existing road. In dry days, the Contractor must water appropriately and collect all fallen earth

often.


54 | P a g e

4.2.5 Package A5

February

In this period, just several items of package A5 were in progress, air quality was generally

good. In February there were many rainy days, so the dust generated during transportation of

construction materials and excavation and fill works was reduced by natural factor.

In site inspections, the Consultant has frequently requested the Contractor to implement

measures to reduce air pollution in project area.

March

In weekly site inspections, the Consultant has frequently reminded the Contractor to implement

measures to prevent and minimize air pollution due to activities of the Project.

However, at stations Km118+930, the intersection area with provincial road, there was a much

soil dropped on the road during material transportation that can affect the air environment and

area safety. The Consultant has required the Contractor to collect dropped soil and clear the

road in order to ensure traffic as well as regional environment (Refer to the Consultant’s letter

No. GET3-KEANGNAM-11-A5-002 on 2nd March 2011 ).

This month, in weekly site inspections of the Consultant, air quality was generally maintained

in good conditions, the construction works haven’t affected seriously the regional air

environment. In March there were many rainy days, so the dust generated during

transportation of construction materials, excavation and fill works was reduced by natural

factor.

4.2.6 Package A6

January

In this period, air quality was generally good. Because of many rainy days in January, the dust

generated during transportation of construction materials and excavation and fill works was

reduced by natural factor. However, due to bad control of the Contractor at some stations,

many trucks weren’t equipped with canvas during material transportation at several stations

such as Km157, Km159. This created dust and affected the air environment, especially on


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sunny and windy days. The Consultant has reminded the Contractor on this issue in letter

No.GET3/DOOSAN/A6/394 on 30th December 2010.



February

In this period, air quality was generally good. At some stations, the Contractor has watered to

minimize dust during material transportation like at Km 163, Km 159…

However, due to bad control of the Contractor at some stations, many trucks weren’t equipped

with canvas during material transportation at station Km 186+740. This created dust and

affected the air environment. The Consultant has reminded the Contractor on this issue in

letter ref.GET3/DOOSAN/A6/519 on 23rd February 2011.



March

At this stage, the construction activities of the project haven’t affected the regional air quality

much. At some stations such as Km183-Km184, Km171-Km172, Km157-Km158,… the

material transporting works were carried out within the site. Beside, in March there were many

rainy days, so the dust was reduced by natural factor.

However, due to bad environment management, on some hot days in this month, at some

stations such as Km174+340, Km165+340,… there was much soil dropped on the road during

material transportation that can affect the air environment. The Consultant has required the

Contractor to implement some measures such as: collecting dropped soil on the transportation

roads, watering on the site and on the transportation roads.

In weekly site inspections, the Consultant has frequently reminded the Contractor to implement

measures to prevent and minimize air pollution due in the Project area.

4.2.7 Package A7

January


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In January 2011, cold days interspersed with drizzly days so construction activities of the

contractor did not cause any adverse impact on air quality inside and outside the scope of the

construction side. Also due to the high humidity of the air plus the drizzling days so land should

always is in the wet state, so the digging activities and land transportation without causing

dust.

In addition, the results of air quality monitoring four quarter - December 2010 of the contractor

indicated that the construction activities didn’t cause negatively affect on air quality in the

region. Here are the results of monitoring air quality of the contractors was made in December

2010.

Results of air quality analysis are compared with QCVN 05:2009 / BTNMT: National Technical

Regulation on ambient air quality and QCVN 06:2009 / BTNMT: The national standards on a

number of toxic substances in ambient air, and are measured as follows:

No

Sample

Monitoring parameters

TSP (mg/m3) CO (mg/m3) SO2 (mg/m3) NO2 (mg/m3)

1 KK01 0.053 0.031 0.011 0.013

2 KK02 0.107 0.996 0.031 0.025

3 KK03 0.059 0.027 0.010 0.014

4 KK04 0.061 0.025 0.007 0.016

5 KK05 0.033 0.014 0.010 0.011

6 KK06 0.031 0.017 0.015 0.012

7 KK07 0.030 0.030 0.030 0.030

8 KK08 0.007 0.017 0.013 0.015

9 KK09 0.030 0.010 0.007 0.006

10 KK10 0.085 0.033 0.010 0.006

11 KK11 0.031 0.023 0.014 0.007

12 KK12 0.028 0.020 0.014 0.008

13 KK13 0.030 0.024 0.009 0.005

14 KK14 0.009 0.013 0.012 0.004

QCVN 05: 2009/BTNMT

QCVN 06: 2009/BTNMT

0.30 30 0.35 0.20


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Note:

KK01: Xuan Sang 1 Primary School, Xuan Sang 1 Hamlet, Tan An Commune, Van ban District

(coordinates X: 2447621; Y: 437656)

KK02: Concrete mixing plant No.1, Ngam Thin Hamlet, Tan Thuong Commune, Van Ban

District (coordinates X: 2450769; Y: 431840)

KK03: Concrete mixing plant No.2, Dap Tran Hamlet, Tan Thuong Commune, Van Ban District

(coordinates X: 2450128; Y: 432378)

KK04: Bridge girder casting yard, Xuan Sang 2 Hamlet, Tan An Commune, Van Ban District

(coordinates X: 2446740; Y: 437982)

KK05: Equipment gathering yard, worker’s living area, Khe U Hamlet, Tan Thuong Commune,

Van Ban District (coordinates X:2454378; Y:430097)

KK06: Cam Con Primary School, Khe Mai Hamlet, Cam Con Commune, Bao Yen District

(coordinates X:2455549; Y:428569)

KK07: Cam Con Health Center, Tan Tien Commune, Bao Yen District (coordinates X:2459218;

Y:425187)

KK08: Drainage casting yard No.1, Khe Quat Hamlet, Tan An Commune, Van Ban District

(coordinates X:2448896; Y:435403)

KK09: Khe U Primary School, Khe U Hamlet, Tan Thuong Commune, Van Ban District

(coordinates X:2454480; Y:430171)

KK10: Residential areas at the right side of project road, Ban Ly Hamlet, Cam Con Commune,

Bao Yen District (coordinates X:2455100; Y:429124)

KK11: Tan Thuong Secondary School, Khe Tep Hamlet, Tan Thuong Commune, Van Ban

District (coordinates X:2451577; Y:431693)

KK12: Drainage casting yard No.2, Bong 1 Hamlet, Cam Con Commune, Bao Yen District

(coordinates X:2458097; Y:425895)

KK13: Cam Con Secondary School, Hamlet 2, Cam Con Commune, Bao Yen District

(coordinates X:2461778; Y:422467)

KK14: Tan An Kinder Garden, Tan Duong Hamlet, Tan An Commune, Van Ban District

(coordinates X:2450626; Y:434435)


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The results of air quality environmental monitoring in the above table are compared with the

limit values in the standards. It shows that most of the observation results are lower than the

prescribed limit values and ranges:

+ Dust concentration: Between 0.007 – 0.107 mg/m3.

+ CO concentration: Between 0.010 - 0.996 mg/m3.

+ SO2 concentration: Between 0.007 – 0.031mg/m3.

+ NO2 concentration: Between 0.004 – 0.030 mg/m3.

February

The Contractor resumed the work from Feb 21st, 2011 and Consultant did not detect any

activity of adverse impact on air quality.

March

At the present, the construction activities of the contractor has not caused adversely affect on

air quality in the region. The coordination activities of land are carried out on routes, vehicles of

transporting land so hardly move out of the resident area, so these present activities didn't

increased the concentration of dust in the air.

In addition, in March because of the weather of drizzly weather and high humidity so the road-

beds are wet. Therefore, the movement of machinery, construction equipment and

transportation of raw materials hasn't caused dust pollution.

4.2.8 Package A8

January

In January 2011, cold drizzle alternating days so the construction actives of the contractor

does not cause adverse impacts on air quality inside and outside the scope of the construction

site. In addition, due to the high humidity of the air plus the drizzling days lead to the land

always be in the wet state, so the digging activities and land transportation without causing

dust.

February

In February, the Contractor began the construction only from February 21, Consultant did not

detect any activity of any adverse impacts of the contractor on air quality in this time.

March


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At the present, the construction activities of the contractor hasn't caused adversely affect on air

quality in the region. The coordination activities of land are carried out on routes, vehicles of

transporting land so hardly move out of the resident area, so these present activities didn't

increased the concentration of dust in the air.

In addition, in March because of the weather of drizzly weather and high humidity so the road-

beds are wet. Therefore, the movement of machinery, construction equipment and

transportation of raw materials has not caused dust pollution.

Result of the Contractor air quality monitoring (carried out by Green Environment Engineering

Joint Stock Company in February 2011) showed that construction works not effected to

ambient air quality.

No

Sampling Site

Air substances

Dust (TSP)

(g/m3)

CO

(g/m3)

SO2

(g/m3)

NOx (g/m3)

HC

(g/m3)

1 KK01 105 1850 34 12 510

2 KK02 112 1970 35 10 630

3 KK03 204 1910 32 11 750

4 KK04 298 2750 54 22 1550

5 KK05 213 1900 31 10 850

6 KK06 160 1720 30 7 700

7 KK07 212 1640 32 9 720

8 KK08 234 1770 38 13 940

QCVN 05: 2009/BTNMT

QCVN 06: 2009/BTNMT

300 30000 350 200 5000

Note:

KK-01: Near the starting point of project, Sonha primary School -No 2, Anthang branch

(GPS: E:48418960; N:2465164);

KK-02: Sonha primary School -No 2, Sonha commune (GPS: E:48416909; N:2467052);

KK-03: Near Nangsom pre-school, near gate of Kheden village, Sonha commune

(GPS: E:48415439; N:2468285);


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KK-04: Xuangiao road junction (GPS: E:48408457; N:2471454);

KK-05: Mixing concrete station - Near Xuangiao High school - Langpheo branch

(GPS: E:48409086; N:2470910 );

KK-06: Giaphu primary School -No 3 (GPS: E:48403182; N:2474612);

KK-07: Point of intersection with Binhminh road (IC 18) near petrol station

(GPS: E:48439948; N:2478869);

KK-08: Section of covering drain of precasting concrete (GPS: E:48404272; N:2472996).

Comparing the results of environmental monitoring of air quality in the table above with the

limit values showed that most of the observation results are lower than the prescribed limit,

except for a fall in third position with Spring Communications Dust concentration approximately

limits and ranges are as follows:

+ Dust concentration: Between 105 – 298 µg/m3.

+ CO concentration: Between 1640 – 2750 µg/m3.

+ SO2 concentrations: In about 30 – 54 µg/m3.

+ NOx concentration: Between 7 – 22 µg/m3.

+ HC concentrations (CxHy): In about 510 – 1550 µg/m3.

Causes dust concentration limits of approximately 3 Spring Communications is at the cross by

the traffic volume at this position is quite high in the early years, especially trucks carrying ore

from the Tang Loong industrial park and Coach back.

4.3 WATER QUALITY

4.3.1 Package A1

January

At the Bon bridge construction site, a little of mud spilled into adjacent river due to the

Contractor didn’t apply the sediment control measures to detain sediment on construction site

or prevent spill of it offsite. The PSC has requested as well as instructed the Contractor to

resolve this problem. We will recheck this area in the next site inspection.


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At the Xuan Phuong bridge and Tan Loi bridge construction sites, the Contractor narrowed the

water bodies of the stretches of adjacent rivers for construction works and temporary stream

crossings because the sites are close the rivers. The PSC has found the risks of erosion and

requested the Contractor to apply the measures to stabilize the slopes and control erosion to

prevent polluting the surface water quality or blocking water flows at these sections. Up to this

time, with the site inspections, we perceived that the surface water qualities in these areas are

not affected from the construction activities of project.

At the other sensitive areas, the surface water qualities are being kept in good condition.

Besides, the PSC has not found any adverse impact on underground water quality from the

construction activities of project.

February

At the Bon bridge construction site, during the site inspection in section week, we found that

the Contractor has dredged the river and there was no sign of bentonite/or mud spilled in

adjacent river.

At Trung Kien bridge, in second week we found that a little of mud after recycling bentonite

slurry spilled in the water course because the Contractor didn’t apply the sediment control

measures. The PSC has recommended the Contractor to apply the sediment control measure

to prevent spill of this material offsite. However, in the third week, during the site inspection we

perceived that the sediment control measure applied was not suitable (sediment basin is too

small) and the mud still leaked in water course. We have immediately requested the Contractor

to resolve this problem and in the weekly meeting, we repeated this problem again and request

the Contractor to control tightly the construction sites.

At the Xuan Phuong bridge, the Contractor has installed the unsuitable temporary pile culverts

with not enough capacity and it blocked the drift of waste and adrift plants such as water-fern.

This matter probably causes water pollution at this area. The PSC has issued the letter in the

third week to instruct the Contractor to install the appropriate culverts at this area to make sure

the water flow as well as ensure the safety. The PSC will recheck this problem in the next site

inspection on Tuesday, March 01st 2011.


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At the other sensitive areas such as Tam Long – Thien Ke bridge and Km 19+150 ~ Km

19+400, we didn’t detect any adverse impact on surface water quality during site inspections in

month.

Besides, there is no negative impact on ground water quality detected, too.

March

At Xuan Phuong bridge construction site, during the site inspection on March 08th 2011, we

perceived that the Contractor had installed more 2 pipe culverts and the adrift plants and waste

were no longer blocked. However, the PSC has recommended the Contractor to calculate the

highest level of water flow, especially in the coming rainy season as well as mobilize more pipe

culverts to make sure the water flow and safety for temporary stream crossing at this area.

Besides, we also detected that the Contractor discharged the waste water directly into river,

the PSC has warned the Contractor to avoid this action in the future.

At the Trung Kien bridge construction site, we detected that the Contractor had installed the

sediment basin to temporary stored mud before removing and prevent the leak of mud offsite.

However, the leaked mud has not been removed still. Besides, during the site inspection on

March 15th 2011, we detected that the mud after recycling bentonite had discharged offsite

and spilled into adjacent paddy field due to the negligence/unawareness of workers. The PSC

has requested the Contractor to immediately remove discharged mud as well as negotiate with

land owner for compensation. The Contractor was also requested to submit the report of this

problem settlement to Engineer in the end of this month.

During the site inspection on March 07th 2011, we detected that the Contractor had installed

the new bentonite slurry flow line but there was no sediment basin installed at Bon bridge

construction site. Besides, we also detected that the mud after recycling bentonite had been

discharged into watercourse. The PSC has requested the Contractor to immediately stop

construction work at this area temporarily till the sediment basin is installed. Besides, the

Contractor was also requested to check bentonite flow line to patch the leaked points to

prevent the leak of bentonite slurry offsite. And up to present, the construction activity at this

area is still being stopped due to the equipment has broken down.

Besides, there is no negative impact on ground water quality detected, too.


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4.3.2 Package A2

January

At the Ben Gao bridge construction site, the Contractor narrowed the water body of the stretch

of river for construction activities (bored pile work) and we found that there was a little of mud

spilled into river due to the Contractor didn’t apply the erosion and sediment control measures

to retain the sediment on construction site.

Besides, at the Tan Dung bridge construction site, the small erosion happened and blocked

the inlet of culvert of temporary stream crossing.

The PSC has requested the Contractor to solve these problems. With the Contractor’s report

and site inspection of PSC, we perceived that the Contractor has implemented the requests of

Engineer and made sure the water flows at these areas.

February

At Lo river bridge – Pier 4 construction site, we detected that the bentonite slurry was leaked in

river during the site inspections in the third week and fourth week. The PSC has requested the

workers to immediately revise the bentonite slurry flow line and patch the holed points. We

also recommended the site engineer and site inspector to control this problem tightly and will

recheck this area on the next site inspection on March 01st 2011.

At the other sections, we didn’t find the adverse impact on water quality embraced surface

water and underground water qualities.

March

During site inspections, we didn’t realize the serious problem which impacts on surface water

quality such as bentonite slurry leakage, hazardous substances leakage in river. However, on

March 16th 2011, we detected that the workers were discharging the drilling mud into river at

Pier 4, Lo river bridge construction site. The PSC has requested the Contractor to immediately

temporary stop the work at this site and remove the drilling mud to approved disposal place.

At the other sections such as Tan Dung bridge (Km 31+245.05), Ben Tre bridge (Km

31+075.65), section 7 (Km 43+400~Km 45+300 – reservoir), we didn’t find the adverse impact

on water quality embraced surface water and underground water qualities.


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4.3.3 Package A3

January

At Km77+700, Red River Bridge is currently executing the first bored pile. 700m was the

distance between Executed position and river bank. And now Consultant has not found any

harmful influence on water surface.

February

Until now, there is no construction activity which is implemented near 500m of Red river blanks

or a branch of Red river (Km67+000). The Consultant usually inspects these sensitive points

on February. However, we have not found any impact from construction work to water quality

of rive, stream or ponds in the scope of this project.

March

Dated March 23rd, 2011 the Contractor mobilize barge to execute on Red river. They lay stone

to reinforce access road in river blank and gather equipment and material to prepare drilling

bore pile on river. The Consultant has still inspected all construction activities in site, but until

now, we have found any impact from construction work to surface water quality of Red river.

Detail of analysing for reference in Report on Environmental monitoring March, 2011.

At Km67+000, the construction work is far 700m from branch of Red river. Therefore, no

construction activities effect to water quality here.

4.3.4 Package A4

January

Currently, bridge construction has not worked yet. However, Consultant warned Contractor to

pay attention to environmental protection and maintenance flow of canal or river. Contractor is

not allowed to pour waste or mud into stream, canal, pond or river.

February

At present, the Contractor is preparing place for drilling bore pile at Ngoi Gianh stream

(Km88+800), Ngoi Van stream (km108+960) and Ngoi Lao stream (Km97+200),. The


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Consultant has inspected these stations but we have not found any impact for water quality: no

waste, no fallen earth on flow, no leaking oil…

Beside, at Km 92+200 the Contractor is removing topsoil and embankment next to a big pond.

Although the Contractor made a bank of earth between construction site and this pond but

earth still easy scatter into pond. Therefore, the Consultant require the Contractor must

carefully when work to avoid polluted surface water here.

March

The Contractor has not executed bridge on Ngoi Gianh (km88+700), Ngoi Van (km108+960),

Ngoi Lao (Km97+100) and Dam Nang (Km108+250) which are valley zone in package A4. In

inspection tour on March 21st-26th, 2011 the Consultant has found that Ngoi Gianh stream is

full of mud by other project. We remind the Contractor should remark it and we will recheck

careful when the Contractor execute bridge on Ngoi Gianh stream.

4.3.5 Package A5

February

Up to now, construction activities of the project haven’t affected seriously the quality of surface

water and the quality of underground water hasn’t been affected.

However, due to weak environment management of the Contractor, at stations Km119+000-

Km119+700, during construction process, unsuitable soil has stopped the water flow of some

gutters. The Consultant has required the Contractor to install immediately temporary culverts in

these areas in letter ref.GET3/KEANGNAM/A5/110 on 15th February 2011.

March

Up to now, the construction activities of the Project haven’t affect seriously the quality of

regional surface and underground water. However, at some stations and routes of the project

which go through some lakes such as: Km121+600 (Nuoc Mat lake); Km126+000 (Ykan lake)

the water quality of these lakes could be affected. The Consultant has requested the

Contractor to have measures to protect and control the environment at these stations so that

the environment and the surface water quality are ensured during construction process.


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In weekly site inspections, the Consultant has frequently reminded the Contractor to manage

strictly the waste, especially the harmful waste to prevent bad effects on environmental quality,

especially in areas near water sources.

4.3.6 Package A6

January

Up to now, contraction activities of the project haven’t affected seriously the quality of surface


In this period, several bridges of the package A6 were in progress and some round culverts

were installed, this didn’t affect seriously the surface water quality of the streams and rivers

because no toxicants were discharged into the water.

Unsuitable soil was disposed and stored at some stations which were not accepted by the

Consultant, that could affect the water such as at stations Km162+900 (Ngoi Giam bridge);

Km159+200 (Ngoi Cong bridge); Km175+020; Km186+140; Km187+500; Km188+800 (Suoi

Nau bridge). But these effects are just local and temporary. The Consultant has requested the

Contractor to deal with them in letter No. GET3/DOOSAN/A6/394 on 30th December 2010;

No.GET3/DOOSAN/A6/435 on 18th January 2011; No.GET3/DOOSAN/A6/458 on 22nd

January 2011; GET3/DOOSAN/A6/471 on 25th January 2011.

February

Up to now, contraction activities of the project haven’t affected seriously the quality of surface


In this period, many bridges of the package A6 were in progress and some round culverts were

installed, this didn’t affect seriously the surface water quality of the streams and rivers because

no toxicants were discharged into the water. But at station Concrete mixing plant Km165

(Stone White Vina Co.), waste water follows drainage, run into river Ngoi Hut but not through

any waste water treatment system. The Consultant has requested the Contractor to install

waste water treatment system for this plant in letter ref.GET3/DOOSAN/A6/518 on 23rd

February 2011.

Besides, due to bad environment control and protection of the Contractor, unsuitable soil was

disposed near Red river at some stations such as Km161+100; Km165+050, that can affect


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Red river’s corridors as well as quality of river water. The Consultant has required the

Contractor to stop disposing unsuitable soil at these stations and promptly move them to

disposal area which is approved by the Consultant.

March

Construction activities of the project this month haven’t affected seriously the quality of surface

water and underground water.

In this period, many bridges of the package A6 were in progress and some RC pipe culverts

were installed, this didn’t affect seriously the surface water quality of the streams and rivers

because no toxicants were discharged into the water.

But due to bad environment control and protection of the Contractor, unsuitable soil was

disposed near Red river at some stations such as Km190+140; Km187+300; Km171;

Km161+100, that can affect Red river’s corridors as well as quality of river water. The

Consultant has required the Contractor to stop disposing unsuitable soil at these stations and

promptly move them to disposal area which is approved by the Consultant.

4.3.7 Package A7

January

At the location of Khe U bridge, consultant found that during the construction process, soil and

sand were flew into the stream and intercepted the flow & effected on the water quality of the

above stream. Consultant has requested the contractor to resolve the above problem

immediately and contractor has mobilized machinery and manpower to recover it.

The locations of bridge’s cross-section through the streams are Khe U, Khe Sang, Ngoi Bong

Bridge. The construction activities of these construction sites still doesn't cause any adverse

impacts on water quality of these streams because the Contractors have implemented

measures as installation of culverts through construction sites, mud protection from

overflowing into streams and garbage collection at construction sites.

However, during the late construction process, consultant has to remind the contractors keep

construction sanitation to minimize adverse impacts on water quality of these streams.

No Parameters Unit NM-1A NM-1B NM-2A NM-2B NM-3A NM-3B QCVN


68 | P a g e

08:2008/

BTNMT(A2)

1 pH - 7.4 7.65 7.8 7.56 8.0 7.65 6-8.5

2 Temperature oC 21.5 21.5 20.9 20.8 21.7 21.65 -

3 DO mg/L 8.8 8.05 7.6 7.58 7.5 8.05 ≥5

4 TSS mg/L 67 23 44 22 10 19.8 30

5 COD mg O2/L

4.8 6.8 7.7 5.6 2.0 16.0 15

6 BOD5 mg/L 2 6.57 5 5.62 1 6.1 6

7 Coliform MPN/ 100mL

93 90 230 195 90 95 5000

8 Grease and oil

mg/L 0.10 0.12 0.11 0.11 0.11 0.15 0.02

9 NO3- mg/L 0.31 0.143 0.54 0.174 0.25 1.434 5

10 NH4+

- N mg/L 0.93 0.92 1.04 0.99 0.85 0.92 0.2

11 SO42- mg/L 3.07 2.98 3.06 2.95 1.65 1.72 -

12 PO43- mg/L 0.01 0.14 0.01 0.10 <0.01 0.08 0.2

13 Total Nitrogen mg/L 1.57 1.046 1.82 3.179 1.26 2.964 -

14 Total Phosphorous

mg/L 0.13 0.036 1.10 0.002 0.10 0.058 -

15 Fe mg/L 1.620 0.231 1.320 <0.2 0.478 0.205 1.0

16 Cd mg/L <0.0002

<0.0002

<0.0002

<0.0002 <0.0002 <0.000

2 0.005

17 As mg/L 0.001 0.001 0.001 0.001 0.001 0.001 0.02

18 Mn mg/L 0.150 0.161 0.200 0.192 0.053 0.075 -

19 Pb mg/L 0.003 0.003 0.003 0.003 0.001 0.002 0.02

20 Zn mg/L 0.009 0.006 0.049 0.058 0.012 0.025 1.0


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Note:

NM-1A: 100m upstream of Com Stream (Coordinates X: 2446740, Y: 437982)

NM-1B: 100m downstream of Com Stream (Coordinates X: 2446740, Y: 437982)

NM-2A: 100m upstream of Khe Sang Stream (Coordinates X: 2446740, Y: 437982)

NM-2B: 100m downstream of Khe Sang Stream (Coordinates X: 2446740, Y: 437982)

NM-3A: 100m upstream of Khe Quat Stream (Coordinates X: 2448055, Y: 436942)

NM-3B: 100m downstream of Khe Quat Stream (Coordinates X: 2448055, Y: 436942)

No Parameters Unit NM-4A NM-4B NM-5A NM-5B NM-6A NM-6B

QCVN 08:2008/

BTNMT(A2)

1 pH - 6.9 7.2 7.4 7.59 6.2 6.92 6-8.5

2 Temperature oC 24.1 24.1 23.9 23.9 18 18 -

3 DO mg/L 6.3 6.73 8.0 7.2 6.23 7.0 ≥5

4 TSS mg/L 43 25 12 21 20 24 30

5 COD mg O2/L 5.2 6.4 3.4 5.6 5.8 16.8 15

6 BOD5 mg/L 2 6.78 1 4.92 3 5.72 6

7 Coliform MPN/100mL

230 237 2 5 230 228 5000

8 Grease and oil

mg/L 0.12 0.12 0.12 0.14 0.10 0.13 0.02

9 NO3- mg/L 0.29 0.284 0.43 1.001 0.37 1.383 5

10 NH4+

- N mg/L 0.74 0.79 1.08 1.02 1.02 0.98 0.2

11 SO42- mg/L 4.33 4.25 2.95 3.02 2.94 3.01 -

12 PO43- mg/L <0.01 0.03 <0.01 0.25 <0.01 0.07 0.2

13 Total Nitrogen

mg/L 1.94 1.445 1.55 1.841 1.47 2.061 -

14 Total Phosphorous

mg/L 0.12 0.023 0.08 0.031 0.09 0.016 -


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15 Fe mg/L 1.330 0.221 0.545 0.254 1.980 <0.2 1.0

16 Cd mg/L <0.0002

<0.0002

<0.0002

<0.0002

<0.0002

<0.0002

0.005

17 As mg/L 0.001 0.001 0.001 0.001 0.001 0.001 0.02

18 Mn mg/L 0.266 0.305 0.062 0.085 0.300 0.298 -

19 Pb mg/L 0.001 0.002 0.001 0.001 0.001 0.001 0.02

20 Zn mg/L 0.010 0.023 0.003 0.004 0.009 0.011 1.0

Note:

NM-4A: 100m upstream of Khe U Stream (Coordinates X: 2454378, Y: 430097)

NM-4B: 100m downstream of Khe U Stream (Coordinates X: 2454378, Y: 430097)

NM-5A: 100m upstream of Bong Stream (Coordinates X: 2457976, Y: 425879)

NM-5B: 100m downstream of Bong Stream (Coordinates X: 2457976, Y: 425879)

NM-6A: 100m upstream of Cam 4 Stream (Coordinates X: 2452027, Y: 431655)

NM-6B: 100m downstream of Cam 4 Stream (Coordinates X: 2452027, Y: 431655)

No Parameters Unit NM-7A NM-7B NM-8A NM-8B

QCVN 08:2008/

BTNMT(A2)

1 pH - 7.7 7.56 6.1 6.8 6-8.5

2 Temperature oC 20.9 20.8 21.5 21.5 -

3 DO mg/L 7.4 7.58 8.9 8.1 ≥5

4 TSS mg/L 44 23 22 18 30

5 COD mg O2/L 7.9 10.4 3.2 8.0 15

6 BOD5 mg/L 5.0 5.52 1 6.0 6

7 Coliform MPN/100mL 230 243 230 232 5000

8 Grease and oil mg/L 0.12 0.14 0.13 0.11 0.02

9 NO3- mg/L 0.55 1.110 0.48 0.361 5

10 NH4+

- N mg/L 0.98 0.88 0.85 0.93 0.2


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11 SO42- mg/L 3.03 2.95 5.09 4.93 -

12 PO43- mg/L 0.01 0.09 0.01 0.03 0.2

13 Total Nitrogen mg/L 1.79 2.007 1.46 1.616 -

14 Total Phosphorous mg/L 0.10 0.027 0.37 0.037 -

15 Fe mg/L 1.23 0.210 1.200 0.230 1.0

16 Cd mg/L <0.0002 <0.0002 <0.0002 <0.0002 0.005

17 As mg/L 0.001 0.001 0.001 0.001 0.02

18 Mn mg/L 0.18 0.135 0.131 0.145 -

19 Pb mg/L 0.002 0.002 0.001 0.001 0.02

20 Zn mg/L 0.045 0.013 0.009 0.008 1.0

Note:

NM-7A: 100m upstream of Mai Hong Stream (Coordinates X: 2448160, Y: 436866)

NM-7B: 100m downstream of Mai Hong Stream (Coordinates X: 2448160, Y: 436866)

NM-8A: 100m upstream of Ban Ly 1 Stream

NM-8B: 100m downstream of Ban Ly 1 Stream

The analytical results of 16 surface water sample showed that: almost all of parameters are

lower than allowable limit values of Standard QCVN 08:2008/BTNMT (A2). However, the

concentration of grease and oil, NH4+, TSS and Fe in some samples are over the allowable

limit values.

February

At the position of Khe Sang Bridge at Km191 + 353 and Khe U Bridge at Km204+581, rubbish

and soil flew into the stream. The Consultant required the Subcontractor to pick waste and

dredge off the flow to return natural flow for these streams.

March

On March 11th, at the construction site of Tan An bridge of Km194+765 and Tan Tien bridge of

Km209+329, during the process of digging abutment piers, the Subcontractor hasn't


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transported waste land and temporarily left them on the construction site so this waste land

has been landslide down the stream to obstruct the stream's flow and increase the

concentration of suspended solids. This affects on the water quality of the river and stream.

Consultant has asked the subcontractor to dredge and clear the flow at the above places

before March 17th, 2011.

On March 22sd, at the location of Tan An Bridge ofKm194 +765 the Subcontractor didn't have

measures is dredged and clear the flow of streams through the construction location.

Consultant asked the Subcontractor to seriously implement and compose the warning letter

Ref: GET4 GRBCC-334 dated on March 23rd, 2011.

4.3.8 Package A8

January

At the construction site of Suoi Trat Bridge, the process of bore piles of the contractor there is

currently no collection tanks of bentonite. Bentonites overflow into Suoi Trat stream to cause

water pollution and affect on the people's life at downstream. Consultant issued an official

warning letter and required the contractor to install collection tanks of bentonite before Jan 5,

2011

At the construction site of Ngoi Bo Bridge, duirng bore pile process a large amount of waste

soil is not transported. Consultant has asked the contractor to install collection tanks and

transport waste soil before Jan 5, 2011 in case when water rises or when it rain heavily, will

sweep away this waste soil to downstream, causing water pollution.

On Jan 5, 2011, the Consultant inspects and found that collection tank of bentonite has

installed in Suoi Trat Bridge, but in the recovery process bentonite spill out and flow downs the

stream. Consultant has requested the contractor to immediately overcome the above

problems. At the construction site Ngoi Bo, the construction activities of contractors is pausing

so the contractor has not transport the amount of waste soil away. Consultant required the

contractor transfered this waste soil as soon as the contractor resume the construction

progresses.

February

On February 21st, 2011, in the execution of Suoi Trat bridge bentonite is overflown during

recovery. Consultant required the Contractor to recovery the overflowing bentonite and repair


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the path of recovered bentonite in order to ensure the bentonite is not overflown while

recovering. This work must be completed before February 28th, 2011.

March

On February 21st at the construction site of Suoi Trat bridge, while constructing the

Subcontractor left soil and rock and betonite spill down the stream affecting water quality.

Consultant has requested the Contractor to dredge and clear the river to ensure the circulation

flow and does not affect on water quality according to the content of Ref. GET4-Vinaconex -

264 dated on February 24th, 2011. To the date of February 28th, the two Subcontractors have

overcome this above problem under the direction of Consultant.

On March 21st, while construction process, the subcontractor let bentonite to spill over the

collection area and affect on the water quality of Suoi Trat stream. Consultant has made a

report on the scene and issue the warning letter that required the contractor to overcome

seriously the problem before March 31st, 2011.

Result of the Contractor water quality monitoring (carried out by Green Environment

Engineering Joint Stock Company in February 2011) showed in following table.

Results of surface water quality analysis are compared with QCVN 08:2008 / BTNMT -

National Technical Regulations on surface water quality as follows:

No

Parameters

Unit

NM-1A

NM-1B

NM-2A

NM-2B

NM-3A

NM-3B

QCVN 08:2008/

BTNMT(A2)

1 pH - 6.73 7.12 6.91 6.74 6.77 7.52 6.5-8.5

2 Temperature oC 17.9 18.1 22.7 22.0 19.1 20.2 -

3 DO mg/l 7.55 7.20 7.40 8.20 7.30 7.50 >5

4 TDS mg/l 622 654 611 788 641 665 -

5 TSS mg/l 16.8 18.1 19.5 29.9 17.9 19.3 30

6 COD mg/l 7.5 8.1 9.4 12.2 10.8 12.5 15

7 BOD5 mg/l 2.5 2.8 2.9 3.4 3.1 3.3 6

8 Coliform MPN/ 550 680 720 840 770 780 5000


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No

Parameters

Unit

NM-1A

NM-1B

NM-2A

NM-2B

NM-3A

NM-3B

QCVN 08:2008/

BTNMT(A2)

100ml

9 Oils & grease

mg/l 0.007 0.008 0.006 0.014 0.008 0.010 0.02

10 NO2- mg/l 0.008 0.008 0.009 0.009 0.008 0.009 0.02

11 NO3- mg/l 3.60 3.71 3.65 3.67 3.20 3.44 5

12 NH4 – N mg/l 0.125 0.132 0.146 0.215 0.154 0.158 0.2

13 PO43- mg/l 0.128 0.131 0.122 0.136 0.115 0.128 0.2

14 Ni mg/l <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 0.1

15 Fe mg/l 0.213 0.226 0.205 0.314 0.237 0.545 1.0

16 Cd mg/l <0.002 <0.002 <0.002 <0.002 <0.002 <0.002 0.005

17 Hg mg/l <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 0.001

18 As mg/l 0.007 0.007 0.007 0.008 0.007 0.008 0.02

19 Cu mg/l 0.011 0.012 0.014 0.014 0.015 0.016 0.2

20 Pb mg/l <0.002 <0.002 <0.002 0.005 0.008 0.008 0.02

21 Zn mg/l 0.006 0.006 0.008 0.016 0.011 0.012 1.0

Note:

NM-1A: Upstream bridge across Nhu stream (100m) (GPS :48420023E; 2463882N);

NM-1B: Downstream bridge across Nhu stream (100m) (GPS: 48419964E; 2464573N);

NM-2A: Upstream bridge across Trat stream (100m) (GPS: 48409292E; 2470972N);

NM-2B: Downstream bridge across Trat stream (100m) (GPS: 48409215E; 2471061N);

NM-3A: Upstream bridge across Ngoi Bo river (100m) (GPS: 48404733E; 247586N);

NM-3B: Downstream bridge across Ngoi Bo river (100m) (GPS: 48404840E; 2474631N).

The result of surface water quality analysis showed that most parameters are located below

the level prescribed for that surface water quality at monitoring sites no sign of pollution.


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4.4 SOILS QUALITY

4.4.1 Package A1

January

At present, the Contractor is implementing the construction work in compliance with the site

limit and the PSC didn’t find any negative impact on soil quality, specially the productive soil in

the agriculture areas surrounding the sites. However, the PSC always recommend the

Contractor to manage tightly material especially liquid and hazardous materials to prevent

potential adverse impact on ambient environment including soil.

February

At the sections Km 17+100 and Km 19+300 and Trung Kien bridge, during the site inspection

in the third week we found there were little of oils leaked on site because the workers didn’t

place drip pans under equipment during maintenance. The PSC requested the Contractor to

collect leaked oil and contaminated soil as well as comply with Engineer’s instruction for

Vehicle and Equipment maintenance. Besides, in this site inspection, at TL402 bridge

construction site we also found that the concrete waste was discharged on undesignated area

(on embankment area) and we has requested the Contractor to collect this material and

dispose it in designated places.

During the next site inspection in the fourth week, we perceived that the Contractor had

collected leaked oil and contaminated soil at mentioned sections and collected concrete waste

at TL402 bridge construction site.

In addition, we also didn’t find the adverse impacts on productive soil during site inspections in

month.

March

At the fueling area in Bon bridge construction site, we detected that there was a small leak of

oil during site inspection on March 01st 2011. The PSC has requested the Contractor to apply

the measures to prevent leak of oil such as place drip pan under nuzzle, fuel tank; checking

and repair leak point as well as must be attended at all times during fueling.


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In addition, we also detected that at Trung Kien bridge construction site, due to the negligence

of workers, the mud after recycling bentonite slurry had discharged offsite and spilled into

adjacent paddy filed during site inspection on march 07th 2011. This problem impacted

adversely on productive soil and probably poisons the plants at this area. The PSC has

requested the Contractor to resolve this problem as well as dealing with land owner for

compensation. The report of this problem settlement must be submitted to the Engineer in the

end of this month.

4.4.2 Package A2

January

At the Ben Gao bridge construction site, due to the Contractor didn’t apply the sediment control

measures and didn’t check the leak of bentonite flow line so the little of bentonite slurry leaked

in productive soil which is next to the site. The PSC has requested the Contractor to check and

repair the leaking point of bentonite flow line; collect leaked bentonite and disposed of it

properly. The Contractor has submitted the report with attached pictures of this matter

resolving to Engineer. We will recheck this problem on site in the next site inspection.

At the other areas, there is no impact on soil quality from construction activities of project

detected.

February

By observation during the site inspection in the third week, we detected that there was a little

of oil leaked in fueling area at Ben Gao bridge construction site because the Contractor did’t

use automatic shut-off nozzle but also didn’t place the drip pan under during fueling

equipment. The PSC has requested the Contractor to use drip pan and control fueling activity

tightly to prevent the leak of oil onsite and in the next site inspection on February 23rd 2011,

we perceived that leaked oil and contaminated soil were removed.

At the Lo river bridge – abutment 1 construction area, during the site inspection on February

18th 2011, we found that there was a little of mud after recycling bentonite slurry spilled offsite

in productive soil because the silt fence was broken. In the next site inspection in fourth week,

we found that the Contractor has collected leaked mud and stop bentonite slurry flow line at

this area.


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At the other areas, there is no impact on soil quality from construction activities of project

detected.

March

We didn’t find any serious problem which impacts adversely on soil quality during the site

inspections this month.

At the Lo river bridge, pier 2 construction site, although the leaked mud was removed from

productive soil, however the silt fence has not been repaired despite many requirements of the

Engineer. During the site inspection on March 23rd 2011, the PSC has warned the site

manager and requested the Contractor to immediately resolve this matter and we found that

the Contractor has complied with request of the PSC.

Besides, the PSC has also requested the Contractor to tightly control hazardous substances

management usually such as oil, grease… to prevent leakage of these substances causing

soil pollution, especially productive soil.

4.4.3 Package A3

January

The last week of December (from 27th to 31st December 2010),Bentonite discharged was still

poured uncontrolledly onto soil-bed in contruction site of Bai Bang railway overpass

(Km60+900). Bentonite flowed into field area which was near contruction site, after long time, it

could impact harmfully on quality of farmland and crop. Consultant already noted this warning

in Contractor contruction site diary and would compose warning letter if Contractor still

postponed not to solve above issue. The first week of January (from 3rd to 7th January 2011)

Consultant rechecked contruction site and the result was that more mud in contruction site was

dredged; Contractor digged a furrow drain and blocked stream flow of Bentonite not to

overflow into below field area.

According to the result of second investigation ( from 10th to 14th January 2011), Consultant

found that there were so much oil available on the soil-bed, Contractor was required to clear

them immediately.

February


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In February, Soil quality has not much changed compare with it in January. Except, the first

week, the Consultant has detected bentonite is poured uncontrolled on ground at Km77+700

(Red river bridge construction). The first reason is the Contractor does not observe

Environmental control plan. And the second is they can not manage their sub-Contractor. The

Contractor is requested to collect all fallen bentonite on ground and control it carefully to avoid

damage to soil quality. After that, in the inspection tour in the second week, the Consultant

inspected in this station and has not found fallen bentonite in site.

March

During March, fuel, oil, bentonite… were managed closer by the Contractor and strictly

inspection by the Consultant. The oil or bentonite spill risks were not detected in site. Beside,

the worker collected rubbish or domestic waste in site and near worker’s camps. Therefore,

soil quality was not affected by construction activities in this month. The Consultant still remind

the Contractor pay attention to maintenance control well all hazardous substance in site to

avoid risk and damage to soil quality.

4.4.4 Package A4

January

During January, the Consultant has not found any serious impact for soil quality. However,

during construction progress, it would have many impacts for soil environment so the

Consultant still strictly warning the Contractor must specially concentrate to controlling and

management fuel in site, avoid to leaking, overflowing oil on ground.

February

There are some differences between February and January. In inspection tours in February,

the Consultant has not detected leaking oil on ground.

The Contractor has just installed a mixing concrete station at Km91+000. If concrete is poured

into ground, it will effect to soil quality. Therefore, the Consultant will pay attention to this point

when we inspect in site.

March


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The construction site quasi-stop execute all month because it was rain almost days of March.

Machine and fuel ungrouped in site. Beside, the worker collected rubbish or domestic waste in

site and near worker’s camps. The Consultant has not found any impact from construction

activities to soil quality.

4.4.5 Package A5

February

To date, the Contractor has executed construction activities on the site within project term that

did’t affect negatively the soil quality, especially agricultural land of local people around the

site.

In environment inspections, the Consultant has always required the Contractor to control tightly

the wastes, especially the harmful waste to prevent bad effects on soil quality.

March

To date, the Contractor still executes the construction activities on the site within the limits of

the project and therefore they have not affected negatively the soil quality, especially

agricultural land of local people around the site.

At some fuel stations of the Contractor, the Consultant has requested the Contractor to check

regularly the equipments which store fuel in order to avoid leakage of material which affects

soil quality.

Besides, in weekly site inspections, the Consultant has required the Contractor to control

disposal areas which store unsuitable soil and promptly move them to treatment areas which is

approved by the Consultant to ensure the environment as well as the soil quality.

4.4.6 Package A6

January

In this period, the site clearing activities, excavation and fill have been carried out on the entire

route of Package A6. To date, the Contractor still executes the construction activities on the

site within the limits of the project and therefore they have not affected negatively the soil

quality, especially agricultural land of local people around the site.


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However, a large amount of unsuitable soil was disposed at some stations such as

Km171+900; Km175+020 which had not been submitted as disposal area by the Contractor.

This can affect the soil quality due to the mix of different soil types. The Consultant has

requested the Contractor to deal with this promptly in letter No.GET3/DOOSAN/A6/435 on

18th January 2011 and No. GET3/DOOSAN/A6/471 on 25th January 2011;


the wastes, especially the harmful waste to prevent bad effects on soil quality. Besides, the

Consultant has requested the Contractor to finish the documents of unsuitable disposal areas

as soon as possible and to submit them to the Consultant promptly so that they can be

considered and accepted.

February

To date, the Contractor still executes the construction activities on the site within the limits of

the project and therefore they have not affected negatively the soil quality, especially


However, unsuitable soil was disposed at some stations such as Km161+100; Km165+050

which had not been submitted as disposal area by the Contractor. This can affect the soil

quality due to the mix of different soil types. The Consultant has requested the Contractor to

deal with this promptly in letter No. GET3/DOOSAN/A6/518 on 23rd February 2011.


the wastes, especially the harmful waste to prevent bad effects on soil quality.

March

This month, the Contractor still executes the construction activities on the site within the limits

of the project and therefore they have not affected negatively the soil quality, especially


The Consultant has required the Contractor to control tightly the wastes and to consolidate the

equipments for preventing material leaking at fuel stations of the Contractor in order not to

affect the environment as well as the soil quality.


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4.4.7 Package A7

January

Current construction activities of the Contractor in this month do not cause harmful effects to

soil quality. The layers of organic soils and unsuitable material disposals was transported to

the fixed and temporary landfills to can be re-used later for growing grass of talus.

The Contractor should pay more attention to other activities such as oil and waste oil tanks to

avoid oil and waste oils from spilling on the ground in the long time can lead to soil and

groundwater pollution.

February

In the inspection of construction on Feb 25th, 2011 at Khe Sang, Khe U and Khe Dai bridges,

Consultant did not detect any activity of the Sub contractor adversely impacts on soil quality in

the surrounding areas of their construction.

March

Current construction activities of the Contractor in this month did not cause harmful effects to

soil organic quality. The layers of organic soils and unsuitable material disposals were

transporte to the defined and temporary landfills in order to be reused later for growing grass of

slope.

The Contractor should pay more attention to other activities such as oil and waste oil tanks

management to avoid oil and waste oils from spilling on the ground because in the long time

they can be the cause of soil and groundwater pollution.

4.4.8 Package A8

January

During the periodic inspection on December 31, 2010, Consultant found that the waste oil form

Tuan Tu Company at Km237+060 and Viet Dung Company Km232+900 spill over on the

ground and polluted the soil environment. The Consultant has requested the Contractor to

overcome the above problems before Jan 5, 2011.

Worker's camps of Viet Dung Co. ltd at Km232 +900, oil waste spill into the ground and this

situation have been overcome under the opinion of the Consultant. However, oil waste spill


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over on the ground of Tuan Tu Company at Km237+060 and still has not been overcome

throughly so the Contractor is required immediately to handle this problem.

February

In February, the Contractor began the construction only from February 21st, 2011 but

Consultant did not detect any activity of any adverse impacts of the Contractor on soil quality.

March

Current construction activities of the contractor in this month did not cause harmful effects to

soil organic quality. The layers of organic soils and unsuitable material disposals were

transported to the defined and temporary landfills in order to be reused later for growing grass

of slope.

The Contractor should pay more attention to other activities such as oil and waste oil tanks

management to avoid oil and waste oils from spilling on the ground because in the long time

they can be the cause of soil and groundwater pollution.

4.5 NOISE AND VIBRATION LEVELS

4.5.1 Package A1

January

During the month with the site inspection, we perceive that the sensitive areas such as temple,

pagoda, schools and resident areas are not affected by noise from construction activities of

project. Besides, these also no construction activity made the considerable vibration affect

these sensitive areas.

February

At the sensitive areas such as section Km 4+220 (pagoda), Km 13+100 (resident area), Km

19+650 (school) there was no construction work carried out during the month, therefore these

areas were not affected by noise or vibration from construction activities of project this month.

March


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At Km 13+100, the construction quantity this month is very small and the main construction

activity is material transport so the noise and vibration rising from construction work of project

was no considerable.

At the sensitive areas such as section Km 4+220 (pagoda), Km 19+650 (school) there was no

construction work carried out during the month, therefore these areas were not affected by

noise or vibration from construction activities of project this month.

4.5.2 Package A2

January

During the month with the site inspections, we perceive that the sensitive areas such as

temple, pagoda, schools and resident areas are not affected by noise from construction

activities of project. Besides, these also no construction activity made the considerable

vibration affect these sensitive areas.

February

At the sensitive areas such as Km 34+780 (Hoang Van pagoda and resident area) we didn’t

detect the adverse impact of noise of vibration from the construction activities of project.

Besides, the quantity of construction work at this area is small so there were not many

equipment operated here.

March

During site inspections this month we didn’t detected the negative impact of noise and

vibration which raise from construction activities of project on sensitive areas (Km 34+780 –

pagoda; Km 34+480 – resident area). In addition, the quantity of construction work at this area

is small so there were not many equipment operated here.

4.5.3 Package A3

January

Construction sites near resident areas as Km48+360, Km55+500, Km67+800, Km78+900

have not worked yet. At Km52-Km54+400; Km58-Km59; Km61-Km67; Km70-Km76+400,

Km77+200+-Km77+800, Km60+900… almost current construction areas are far from resident


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areas. At present, the Consultant has not found any serious effect by noise or vibration to

sensitive points along package A3.

February

According Noise monitoring result when the Consultant take it in site we have some conclusion

as bellow:

Location Monitoring value (dBA)

Standard Value (dBA)

TCVN 5949:1998 (LAeq) Remark

6h -18h 18- 22h 22h- 6h 6h -18h 18- 22h 22h- 6h

Km 48+500

(resident area)

59 51 42 60 55 50 Not yet work

Km 55+550

(resident area)

53 48 37 60 55 50 Not yet work

Km 67+700

(resident area)

58 53 42 60 55 50 Not yet work

Km 78+900 (resident area intermix trading, service).

48 44 39 75 70 50 Not yet work

At monitoring points, construction work is not implemented so above monitoring value is Noise

base data for Package A3. The current construction areas which are operating far from

resident areas as Km52-Km54+400; Km58-Km59; Km61-Km67; Km70-Km76+400,

Km77+200+-Km77+800, Km60+900…

March

According Noise monitoring result when the Consultant takes it in site we have some

conclusion as bellow:


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Location Monitoring value (dBA)

Standard Value (dBA)

QCVN 27:2010/BTNMT

6h -12h 12- 15h 15h- 18h 6h-18h

Km48+500 (resident area) 51 57 58 60

Km55+550 (resident area) 53 60 59 60

Km67+700 (resident area) 50 58 57 60

Km78+900 (resident area

intermix trading, service). 52 58 56 60

Noise monitoring results at the positions are in the Standard Value. The Contractor is

requested to maintain control of construction activities to noise arising from the allowed limit.

4.5.4 Package A4

January

Almost construction site which are working , are far from resident areas. Except construction

area at Km92+800 in section 3, there are about ten households scattered along left side.

Therefore, in order to controlling disadvantage impacts of noise to sensitive areas near site,

the Consultant requested Contractor Keangnam to submit noise report if they has plan for any

work carried out at night next to sensitive points (resident areas, school, pogoda ...).

February

The Construction work is still not executed at Km91+150 (school), Km106+700(school),

Km95+100 (residential area), Km108+227(residential area) which is sensitive areas along

package A4. The Consultant has not found any impact of noise and vibration from the

construction activities to sensitive areas.

The Construction sites are working now at Km81-Km82, Km89+800, km92-km94, km97-km98,

km103-km104, km105-km108… almost are far from residential areas.


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March

The Construction work is still not executed at Km91+150 (school), Km106+700(school),

Km95+100 (residential area), Km108+227(residential area) which is sensitive areas along

package A4. The Consultant has not found any impact of noise and vibration from the

construction activities to sensitive areas.

The Construction sites are working now at Km81-Km82, Km89+800, km92-km94, km97-km98,

km103-km104, km105-km108… almost are far from residential areas.

4.5.5 Package A5

February

During this period, noise and vibration have not seriously affected the construction areas on

the site and residential areas, schools, temples, churches, hospitals ....

In February, the Consultant has measured the noise level in some areas with the sound meter

SC-2c.

No Location Date Time Noise level (dBA)

Max Min Average

1 Km112+500 11/02/2011 09h45 AM 57 43 50.0

2 Km118+930 15/02/2011 15h45 PM 59 52 55.5

All of the noise observation areas above are near residential areas (with maximum permitted

noise level of 60 dBA from 6h00 AM to 18h00 PM). This noise level does not exceed TCVN

(Vietnamese Standards) 5949-1998 (Acoustics – Noise in public and residential areas

maximum permitted noise level)

The Consultant has also advised the Contractor to reduce construction at night in the sensitive

and residential areas.

In coming months, the Consultant will regularly test noise level in the sensitive areas and

residential areas with the sound meter SC-2c to timely detect the areas with the noise levels

over permitted TCVN in order to advise the Contractor to implement the noise minimization

measures that are appropriate in those areas.


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March

During this period, noise and vibration have not seriously affected the construction areas on

the site and residential areas, schools, temples, churches, hospitals ....

In March, the Consultant has measured the noise level in some areas with the sound meter

SC-2c.


Max Min Average

1 Km117+050 10/03/2011 10h00 AM 58 46 52.0

2 Km118+820 10/03/2011 16h15 AM 60 53 56.5

3 Km121+433 23/03/2011 09h30 AM 59 50 54.5



(Vietnamese Standards) 5949-1998 (Acoustics – Noise in public and residential areas







measures that are appropriate in those areas.

4.5.6 Package A6

January

The package A6 goes through the mountainous region of Yen Bai province, and through

residential areas and other sensitive areas not much. During this period, noise and vibration

have not seriously affected the construction areas on the site and residential areas, schools,

temples, churches, hospitals....

In January, the Consultant has measured the noise level in some areas with the sound meter

SC-2c.


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Max Min Medium

1 Km157+500 12/01/2011 09h30 AM 58 47 52.5

2 Km163+200 12/01/2011 14h00 AM 60 53 56.5

3 Km165+350 21/01/2011 10h00 AM 61 51 56.0

4 Km176+500 21/01/2011 14h15 PM 58 45 51.5

5 Km184+500 21/01/2011 15h45 PM 59 49 54.0



5949-1998 (Acoustics – Noise in public and residential areas maximum permitted noise level)





over permitted TCVN (Vietnamese Standards) in order to advise the Contractor to implement

the noise minimization measures that are appropriate in that area.

February

The package A6 goes through the mountainous region of Yen Bai province, and less through

residential areas and other sensitive areas. During this period, noise and vibration have not

seriously affected the construction areas on the site and residential areas, schools, temples,

churches, hospitals, ....

In February, the Consultant has measured the noise level in some areas with the sound meter

SC-2c.


Max Min Average

1 Km157+500 12/02/2011 10h00 AM 59 45 52.0

2 Km163+200 12/02/2011 15h15 PM 61 51 56.0

3 Km165+350 14/02/2011 09h00 AM 56 49 52.5

4 Km176+500 14/02/2011 14h30 PM 59 47 53.0


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5 Km184+500 14/02/2011 16h00 PM 57 50 53.5


noise level of 60 dBA from 6h00 AM to 18h00 PM). This noise level does not exceed

TCVN(Vietnamese Standards) 5949-1998 (Acoustics – Noise in public and residential areas







measures that are appropriate in that area.

March

The package A6 goes through the mountainous region of Yen Bai province, and less through

residential areas and other sensitive areas. During this period, noise and vibration have not

seriously affected the construction areas on the site and residential areas, schools, temples,

churches, hospitals, ....

In March, the Consultant has measured the noise level in some areas with the sound meter

SC-2c.


Max Min Average

1 Km155+360 04/03/2011 10h30 AM 57 51 54.0

2 Km163+200 04/03/2011 14h45 AM 59 50 54.5

3 Km165+350 24/02/2011 09h45 AM 60 56 58.0

4 Km176+500 24/02/2011 16h15 PM 58 56 57.0


noise level of 60 dBA from 6h00 AM to 18h00 PM). This noise level does not exceed

TCVN(Vietnamese Standards) 5949-1998 (Acoustics – Noise in public and residential areas



90 | P a g e






measures that are appropriate in that area.

4.5.7 Package A7

January

At the present, the construction sites of bridges such as Khe Sang at Km191+353, Tan An

bridge at Km194+756, Khe Can bridge Km195+360, Khe U bridge at Km204+581, Ngoi Bong

bridge at Km207+935 also are far away from residential and sensitive areas like schools and

hospitals. Therefore, the contractor's activities are drillers, air compressors; diesel engines

didn’t cause adverse impact on noisy and vibration to these areas.

In addition, the construction of road base operations, transportation of materials can also

cause impacts on noisy and vibration but the impacts is appraised to be acceptable and in

accordance with limited noise and vibration levels .

Noise measuring results are compared with TCVN 5949:1998: Acoustics-noise in public and

residential areas. Maximum allowable noise level is shown in the following table:

Sample

Noise level (dBA)

Leq Lmax L50

L1 L2 L3 TB L1 L2 L3 TB L1 L2 L3 TB

N01 52.5 48.6 49.5 50.2 82.2 71.8 84.5 80.5 38.4 39.5 49.5 42.5

N02 58 55.7 57.4 57.0 72.5 72.8 72.9 72.7 49.7 49.8 49.5 49.7

N03 51.1 51.7 38.2 47.0 63.5 62.7 54.9 60.4 41.9 42 36 40.0

N04 47 60.7 46.5 51.4 72.5 81.9 72.8 75.7 29.1 37.2 33.5 33.3

N05 47.3 55.0 50.1 50.8 72.8 77.9 75.3 75.3 41.9 39.7 40.2 40.6

N06 46.5 47.3 50.5 48.1 62.3 66.9 58.1 62.4 39.3 37.3 38.1 38.2


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N07 46.2 42.2 46.8 45.1 72.6 73.5 74.9 73.7 31.8 38.2 37.1 35.7

N08 46.5 42.5 50.7 46.6 64.4 64.0 65.7 64.7 40.6 36.3 48.1 41.7

N09 50.1 32.3 30.7 37.7 72.8 72.6 74.0 73.1 49.7 48.7 34.1 44.2

N10 57 59.7 59.8 58.8 79.9 82.7 83 81.9 41.3 32 45 39.4

N11 47.8 46.9 47.4 47.4 72.3 72.0 74.4 72.9 36 34.8 36.4 35.7

N12 50.4 60.2 55.5 55.4 72.2 71.5 70.0 71.2 35.5 40.3 45.6 40.5

N13 49.3 46.5 52.0 49.3 72.9 73.2 73.6 73.2 36.3 38.9 35.5 36.9

N14 50.1 47.2 48.3 48.5 65.6 64.8 67.6 66.0 40.6 43.3 42.1 42.0

TCVN 5949:1998

75 - -

Note:

N01: Xuan Sang 1 Primary School, Xuan Sang 1 Hamlet, Tan An Commune, Van ban District (coordinates X: 2447621; Y: 437656)

N02: Concrete mixing plant No.1, Ngam Thin Hamlet, Tan Thuong Commune, Van Ban District (coordinates X: 2450769; Y: 431840)

N03: Concrete mixing plant No.2, Dap Tran Hamlet, Tan Thuong Commune, Van Ban District (coordinates X: 2450128; Y: 432378)

N04: Bridge girder casting yard, Xuan Sang 2 Hamlet, Tan An Commune, Van Ban District (coordinates X: 2446740; Y: 437982)

N05: Equipment gathering yard, worker’s living area, Khe U Hamlet, Tan Thuong Commune, Van Ban District (coordinates X:2454378; Y:430097)

N06: Cam Con Primary School, Khe Mai Hamlet, Cam Con Commune, Bao Yen District (coordinates X:2455549; Y:428569)

N07: Cam Con Health Center, Tan Tien Commune, Bao Yen District (coordinates X:2459218; Y:425187)

N08: Drainage casting yard No.1, Khe Quat Hamlet, Tan An Commune, Van Ban District (coordinates X:2448896; Y:435403)

N09: Khe U Primary School, Khe U Hamlet, Tan Thuong Commune, Van Ban District (coordinates X:2454480; Y:430171)


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N10: Residential areas at the right side of project road, Ban Ly Hamlet, Cam Con Commune, Bao Yen District (coordinates X:2455100; Y:429124)

N11: Tan Thuong Secondary School, Khe Tep Hamlet, Tan Thuong Commune, Van Ban District (coordinates X:2451577; Y:431693)

N12: Drainage casting yard No.2, Bong 1 Hamlet, Cam Con Commune, Bao Yen District (coordinates X:2458097; Y:425895)

N13: Cam Con Secondary School, Hamlet 2, Cam Con Commune, Bao Yen District (coordinates X:2461778; Y:422467)

N14: Tan An Kinder Garden, Tan Duong Hamlet, Tan An Commune, Van Ban District (coordinates X:2450626; Y:434435)

As mentioned above, all the noise monitoring results are compared with Vietnam standard

TCVN 5949-1998 for the region that mixing between production and residential areas. Most of

the measured data are approximately or lower than the prescribed level in ISO 5949-1998, and

the ranges of measured results are as follows:

Leq noise levels ranged from 37.7 dBA to 58.8 dBA. The highest value was found in residential

areas that located on the right side of project, in Ban Ly Hamlet, Cam Con Commune, Bao Yen

District

As the same as noise monitoring, the results of vibration monitoring will be compared with

TCVN 6962:2001: Vibration and shock-Vibration emitted by construction activities and

industrial production. Maximum allowable level for environment in public and residential areas

are as follows

SampleLaeq (m/s2) Lveq (m/s) Frequ

ency (Hz) L1 L2 L3 TB L1 L2 L3 TB

V01 0.00155 0.00170 0.00162 0.00162 0.000309 0.000339 0.000323 0.000324 8Hz

V02 0.000945 0.00118 0.00114 0.00109 0.000190 0.000235 0.000227 0.000217 8Hz

V03 0.00128 0.00139 0.00127 0.00131 0.000255 0.000277 0.000253 0.000262 8Hz

V04 0.00148 0.00196 0.00183 0.00176 0.000294 0.000390 0.000365 0.000350 8Hz

V05 0.00106 0.00139 0.00114 0.00120 0.000210 0.000277 0.000227 0.000238 8Hz

V06 0.00154 0.00129 0.00133 0.00139 0.000306 0.000256 0.000265 0.000276 8Hz

V07 0.00143 0.00156 0.00164 0.00154 0.000284 0.000311 0.000326 0.000307 8Hz


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SampleLaeq (m/s2) Lveq (m/s) Frequ

ency (Hz) L1 L2 L3 TB L1 L2 L3 TB

V08 0.00140 0.00113 0.00121 0.00125 0.000278 0.000224 0.000240 0.000247 8Hz

V09 0.00138 0.00164 0.00132 0.00145 0.000274 0.000326 0.000262 0.000287 8Hz

V10 0.00182 0.00167 0.00179 0.00176 0.000361 0.000333 0.000356 0.000350 8Hz

V11 0.00141 0.00157 0.00141 0.00146 0.000281 0.000313 0.000281 0.000292 8Hz

V12 0.00188 0.00167 0.00165 0.00175 0.000375 0.000332 0.000328 0.000345 8Hz

V13 0.00180 0.00172 0.00183 0.00178 0.000357 0.000342 0.000363 0.000354 8Hz

V14 0.00118 0.00139 0.00122 0.00126 0.000234 0.000277 0.000243 0.000251 8Hz

TCVN 6962: 2001

0.055

Note:

V01: Xuan Sang 1 Primary School, Xuan Sang 1 Hamlet, Tan An Commune, Van ban District (coordinates X: 2447621; Y: 437656)

V02: Concrete mixing plant No.1, Ngam Thin Hamlet, Tan Thuong Commune, Van Ban District (coordinates X: 2450769; Y: 431840)

V03: Concrete mixing plant No.2, Dap Tran Hamlet, Tan Thuong Commune, Van Ban District (coordinates X: 2450128; Y: 432378)

V04: Bridge girder casting yard, Xuan Sang 2 Hamlet, Tan An Commune, Van Ban District (coordinates X: 2446740; Y: 437982)

V05: Equipment gathering yard, worker’s living area, Khe U Hamlet, Tan Thuong Commune, Van Ban District (coordinates X:2454378; Y:430097)

V06: Cam Con Primary School, Khe Mai Hamlet, Cam Con Commune, Bao Yen District (coordinates X:2455549; Y:428569)

V07: Cam Con Health Center, Tan Tien Commune, Bao Yen District (coordinates X:2459218; Y:425187)

V08: Drainage casting yard No.1, Khe Quat Hamlet, Tan An Commune, Van Ban District (coordinates X:2448896; Y:435403)

V09: Khe U Primary School, Khe U Hamlet, Tan Thuong Commune, Van Ban District (coordinates X:2454480; Y:430171)


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V10: Residential areas at the right side of project road, Ban Ly Hamlet, Cam Con Commune, Bao Yen District (coordinates X:2455100; Y:429124)

V11: Tan Thuong Secondary School, Khe Tep Hamlet, Tan Thuong Commune, Van Ban District (coordinates X:2451577; Y:431693)

V12: Drainage casting yard No.2, Bong 1 Hamlet, Cam Con Commune, Bao Yen District (coordinates X:2458097; Y:425895)

V13: Cam Con Secondary School, Hamlet 2, Cam Con Commune, Bao Yen District (coordinates X:2461778; Y:422467)

V14: Tan An Kinder Garden, Tan Duong Hamlet, Tan An Commune, Van Ban District (coordinates X:2450626; Y:434435)

As a rule, the vibration acceleration should not exceed 0.055 m/s2 from 7h to 19h. According

to table 12, the average vibration values range from 0.00109 to 0.00178 m/s2 and below the

prescribed level.

February

At the present, the Contractor has installed two cement stations at Khe Sang Bridge at

Km191+ 353 and Xom Danh Bridge at Km198+400. However, the two cement stations were

located far away from the residential and sensitive areas. They are not be operated now so

haven't caused any effect of noise and vibration levels.


cause impacts on noise and vibration but the impacts are appraised to be acceptable and in

accordance with standards noise and vibration levels .

March

At the present, the Contractor has installed two cement stations at Khe Sang Bridge at

Km191+ 353 and Xom Danh Bridge at Km198+400. However, the two cement stations were

located far away from the residential and sensitive areas. They are not be operated now so

haven't caused any effect of noise and vibration levels.





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4.5.8 Package A8

January

Currently the construction site of Ngoi Bo bridge , Suoi Nhu Bridge are located away from

residential and sensitive areas so the impact of construction equipment such as bored pile

machine, air compressor, concrete drill do not affect the level of noisy and vibration to people

here.

In addition to the construction site of IC18 Bridge, Suoi Trat Bridge is located near highways

and houses. However, during the construction process of IC 18 Bridge has definitely stopped

wall around to minimize the noise and vibration impacts. Proposed the unit constructing Suoi

Trat to give measures to minize the impacts of noisy and vibration.

February

Currently a number of constructions such as Suoi Nhu, IC 18 and Ngoi Bo Bridges did not

cause impacts on noisy and vibration because the location of construction of the bridge away

from residential areas and sensitive areas .



accordance with standards noise and vibration levels.

March

Currently a number of constructions such as Suoi Nhu, IC 18 and Ngoi Bo Bridges did not

cause impacts on noisy and vibration because the location of construction of the bridge away

from residential areas and sensitive areas .




Result of the Contractor noise and vibration level monitoring (carried out by Green

Environment Engineering Joint Stock Company in February 2011) shown in the following

tables.


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Sampling site

Noise level (dBA)

Leq Lmax L50

L1 L2 L3 Average L1 L2 L3 Average L1 L2 L3 Average

N01 47.7 52.1 45.6 48.5 58.6 61.4 55.7 58.6 52.4 56.5 48.7 52.5

N02 50.7 54.6 53.3 52.9 64.1 65.2 61.8 63.7 56.2 58.7 57.2 57.4

N03 67.3 63.3 64.7 65.1 87.1 76.4 71.3 78.2 69.5 68.8 66.8 68.4

N04 70.7 61.4 66.3 66.1 87.1 75.1 72.6 78.3 73.2 66.5 68.1 69.3

N05 46.5 64.5 52.4 54.5 58.8 76.8 63.1 66.2 49.8 68.4 55.7 58.0

N06 51.4 52.5 54.4 52.8 68.7 64.7 61.9 65.1 63.2 57.8 57.4 59.5

N07 66.8 60.7 68.4 65.3 78.4 71.9 74.6 75.0 69.3 65.8 70.3 68.5

N08 59.2 48.8 61.5 56.5 70.6 60.5 68.3 66.5 62.6 55.4 64.1 60.7

QCVN 26:2010 / BTNMT

70 - -

Note:

L1, L2, L3: Times measuring during 01 hour, 10 minutes measured each time.

N-01: Near the starting point of project, Sonha primary School -No 2, Anthang branch

(GPS: E:48418960; N:2465164);

N-02: Sonha primary School -No 2, Sonha commune (GPS: E:48416909; N:2467052);

N-03: Near Nangsom pre-school, near gate of Kheden village, Sonha commune

(GPS: E:48415439; N:2468285);

N-04: Xuangiao road junction (GPS: E:48408457; N:2471454);

N-05: Mixing concrete station - Near Xuangiao High school - Langpheo branch

(GPS: E:48409086; N:2470910 );

N-06: Giaphu primary School -No 3 (GPS: E:48403182; N:2474612);

N-07: Point of intersection with Binhminh road (IC 18) near petrol station

(GPS: E:48439948; N:2478869);

N-08: Section of covering drain of precasting concrete (GPS: E:48404272; N:2472996).

As mentioned, all the noise monitoring results are compared with Vietnam standard QCVN

26:2010 / BTNMT - National Technical Regulations on noise. Most of the measured data to or


97 | P a g e

lower than the prescribed level of approximately QCVN 26:2010/BTNMT and the following

changes:

Leq noise levels ranged from 48.5 dBA to 66.3 dBA and the highest in Giao Xuan Nga Ba

position and the position of Communications for the road Dawn (IC18) near gas stations.

Similar observation noise, vibration measuring results are compared with QCVN 27:2010 /

BTNMT - National Technical Regulations on vibration, shown in the following table:

Sampling site

Lva (m/s2) Lv (m/s) Frequency

(Hz) L1 L2 L3 Average L1 L2 L3 Average

V01 0.0039 0.0054 0.0038 0.0044 0.0028 0.0027 0.0031 0.0029 1-10

V02 0.0043 0.0067 0.0039 0.0050 0.0035 0.0032 0.0032 0.0033 1-10

V03 0.0055 0.0022 0.0061 0.0046 0.0033 0.0034 0.0026 0.0031 1-10

V04 0.0141 0.0186 0.0135 0.0154 0.0024 0.0028 0.0030 0.0027 1-10

V05 0.0033 0.0047 0.0024 0.0035 0.0026 0.0026 0.0019 0.0024 1-10

V06 0.0039 0.0057 0.0025 0.0040 0.0025 0.0026 0.0028 0.0026 1-10

V07 0.0150 0.0168 0.0134 0.0151 0.0031 0.0033 0.0020 0.0028 1-10

V08 0.0052 0.0088 0.0071 0.0070 0.0028 0.0033 0.0026 0.0029 1-10

QCVN 27:2010/ BTNMT

0.055

Note:

L1, L2, L3: Times measuring during 01 hour, 10 minutes measured each time.

V-01: Near the starting point of project, Sonha primary School -No 2, Anthang branch

(GPS: E:48418960; N:2465164);

V-02: Sonha primary School -No 2, Sonha commune (GPS: E:48416909; N:2467052);

V-03: Near Nangsom pre-school, near gate of Kheden village, Sonha commune

(GPS: E:48415439; N:2468285);

V-04: Xuangiao road junction (GPS: E:48408457; N:2471454);

V-05: Mixing concrete station - Near Xuangiao High school - Langpheo branch

(GPS: E:48409086; N:2470910 );


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V-06: Giaphu primary School -No 3 (GPS: E:48403182; N:2474612);

V-07: Point of intersection with Binhminh road (IC 18) near petrol station

(GPS: E:48439948; N:2478869);

V-08: Section of covering drain of precasting concrete (GPS: E:48404272; N:2472996).

As a rule, the vibration acceleration should not exceed 0.055 m/s2 from 7h to 19h. According

to table 12, the average vibration values range from 0.0035 to 0.0154 m/s2 m/s2 and below

the prescribed level.

4.6 STREAMS AND RIVERSIDES MAINTENANCE

4.6.1 Package A1

January

At the Xuan Phuong bridge and Tan Loi bridge construction sites, the Contractor narrowed the

water bodies for construction works and temporary stream crossings. The PSC has found the

risks of erosion and requested the Contractor to apply the measures to stabilize the bed, inlets

and outlets of temporary culverts as well as control erosion to prevent blocking water flows at

these sections. Up to now, the water flows at these sections are still maintained.

At the other sections, the construction activities don’t affect the stream or riversides.

February

At Xuan Phuong bridge construction site, during site inspection in the third week we perceived

that the capacity of temporary pile culverts is not enough and unsuitable with velocity of water

flow when the water level rose high due to the local authority provides water for new crop. The

left side of stream in this area is also eroded because the Contractor didn’t apply the measure

to stabilize the outlet of temporary pipe culvert and the side of stream as the instructions of

Engineer (we had issued the instruction letter of temporary stream crossing in the third week –

see in the annex 3). The PSC has instructed and request the Contractor to mobilize more pipe

culverts to ensure the water flow as well as safety for workers in the weekly meeting in the

fourth week. The Contractor promised to resolve this problem by the Monday, February 28th

2011. The PSC will recheck this area during the next site inspection on Tuesday, March 01st

2011.


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The erosion happened will be mitigated, at the end of the works in this area, with the

application of corrective measures to restore the affected riverside.

Besides, we didn’t find the adverse impact on stream and riversides at the other sections.

March

During site inspection on March 08th 2011, we perceived that the Contractor had installed

more two pipe culverts for temporary stream crossing at Xuan Phuong bridge construction site.

However, the PSC reckoned that only two pipe culverts have been installed more is not

enough, besides, the outlets and inlets of temporary pipe culverts have not stabilized so the

temporary stream crossing at this section can be broken easily when the water level here

rises, especially in the coming rainy season. The PSC has also recommended the Contractor

to pay attention to this opinion to apply the suitable measures to make sure the water flow as

well as safety and the solid of structure.

In addition, we also realized that the left riverside at this area has been no longer eroded.

At section Km 2+218 ~ Km 2+960, during site inspection on March 15th 2011 we detected that

temporary pipe culverts are not enough capacities and easy to be blocked by erosion and

sedimentation in the rain. The PSC has requested the Contractor to install new others to make

sure the water flow at this section. From March 16th 2011 till March 17th 2011, the weather

was drizzle rain, the PSC rechecked this area and detected that the Contractor had not

replaced unsuitable temporary pipe culverts and the water flows has been blocked by erosion

and sedimentation. The PSC has issued the warning letter to request the

Contractor to resolve this problem and will recheck this area on March 29th 2011.

Temporary drainage at section Km 0+775 is considered not enough capacity and the PSC has

also requested the Contractor replace with another in the site inspection on March 24th 2011.

4.6.2 Package A2

January

At the Ben Gao bridge construction site, the Contractor has narrowed the water body of the

stretch of river for construction activities (bored pile work) and we found that there was a little

of mud spilled into river due to the Contractor didn’t apply the erosion and sediment control

measures to retain the sediment on construction site.


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Besides, at the Tan Dung bridge construction site, the small erosion happened and blocked

the inlet of culvert of temporary stream crossing.

The PSC has requested the Contractor to solve these problems and with the Contractor’s

report and site inspection of PSC, we perceived that the Contractor has implemented the

requests of Engineer and made sure the water flows at these areas.

February

At Tan Dung bridge, during the site inspection on February 09th 2011, we found that the

casing was put on the bank of irrigational canal and in water flow. The PSC has requested the

Contractor to remove this casing to the material storage area right after the workers come back

site to work. In the next site inspection on February 16th 2011, we perceived that the casing

was removed from water flow.

At Song Dao bridge, the Contractor had installed the temporary stream crossing with

unsuitable pipe culverts so the water flow was blocked. During the site inspection on February

21st 2011, the PSC has request the Contractor to demobilize the temporary stream crossing to

ensure the water flow to prevent the flood on upstream. Besides, the Contractor also has to

reinstall temporary stream crossing with suitable pipe culverts to ensure the water flow and

tally with high water level and flow velocity in rainy season coming and/or during the local

authorities provide water for cultivated crops.

The PSC will recheck this section in the next site inspection on March 01st 2011.

March

At Song Dao bridge construction site, during the site inspection on March 02nd 2011 we

detected that the Contractor has not implemented requirements of PSC regarding to water flow

protection here. We had requested again the Contractor to comply with our requirement as

statement last month to make sure the water flow as well as protect the irrigation work.

On March 16th 2011, we perceived that the Contractor had demobilized the temporary pipe

culvert and restored the water flow at this area.

At other sections, we didn’t detect the serious problem impacts on streams and riversides

maintenance during site inspections.


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4.6.3 Package A3

January

At Km 51 Bridge TL323B, Contractor digged and enlarged irrigation canal in project area. And

circulate drain was placed in this position to maintain stream flow to serve irrigation for

surrouding areas.

At Km74+500, Contractor currently transported discharged earth out of buiding site, the ditch

crossing over contruction site would be enlarged in the nearest future.

February

At Km51, Km74+500, Km73+600, Km72+300 the Contractor built pile culvert to maintenance

irrigation flow in February.

There is a canal across at Km68+300 but it is not set up pile culvert because drawing is not

approved. Therefore, the Contractor has dredged this canal to unblock it since 2 weeks ago

(14th- 19th February).

March

In order to maintenance flow of drainage canal, the pile culvert is executed in many points

along package A3 in March, ex: Km73+210, Km73+670, Km73+769, Km73+940. In this month,

the Consultant has not found any impact of construction works to block the drainage canal.

4.6.4 Package A4

January

In package A4, almost construction activities are site clearing and top soil remove. At present,

the Consultant has not found any impact from construction work to block river, stream, canal

flow in project area.

February

In February, the construction work has not executed near river or stream in package A4. Up to

now, the Consultant has not detected any canal is blocked or river, stream are impacted.

March


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The Contractor has not executed near river or stream in package A4. But in inspection tour on

March 21st-26th, 2011 the Consultant has found that mud take one-third of Ngoi Gianh stream

bed. But the Contractor undertook that is the result of other project of Cam Khe district

because the Contractor still has not implement yet in this point. We confirm the Contractor still

has not implement in Ngoi Gianh (Km88+700) yet.

At Km108+965, the Consultant detected that Earth is fallen to drainage canal in inspection tour

on March 21st-26th, 2011. It will be blocked in near future. The Contractor is requested to

dredge all fallen earth in drainage canal bed and reinforce side of this access road to avoid fall

solid substance into drainage canal. We will recheck in next week

4.6.5 Package A5

February

In this period, there was no item of building bridges and culverts. Streams and riversides are

still maintained in good conditions.

However, during construction process at stations Km119+000-Km119+700, unsuitable soil has

stopped the water flow of some gutters. The Consultant has required the Contractor to install

temporary culverts at these stations immediately in letter ref.GET3/KEANGNAM/A5/110 on

15th February 2011.

In weekly site inspections, the Consultant has always reminded the Contractor to ensure the

natural water flow of streams and river corridors

March

This month, streams and riversides are maintained in good conditions. In weekly site

inspections, the Consultant has frequently reminded the Contractor to ensure natural water

flow of streams and river. Besides, the Consultant has required the Contractor to transport all

unsuitable soil to disposal area which is approved by the Consultant to ensure that unsuitable

soil can’t affect Stream and River in project area.

In coming months, the Consultant will regularly inspect the situation of River and Stream in

order to discover negative effects on Stream and River due to construction activities of the

project and remind the Contractor to deal with it.


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4.6.6 Package A6

January

On the entire route of package A6 there are many locations that require building bridges over

rivers, streams and many culverts. At present, in some areas like Ngoi Rom bridge, Ngoi Giam

bridge, Ngoi Nhuoc bridge, Lang Nhay bridge, temporary paths cross the streams were in

progress, however, the Contractor has installed culverts to ensure natural water flow in these

areas.

In this period, unsuitable soil was disposed and stored at some unaccepted positions, that can

affect the water flow of streams and rivers.

At some other stations, the construction activities didn’t affect the streams and river sides.

February

At present, streams and riversides are maintained in good conditions. The construction of Ngoi

Rom bridge, Ngoi Giam bridge, Ngoi Nhuoc bridge,… goes through small rivers and streams,

however, the Contractor has installed temporary culverts to ensure natural water flow in these

areas.

In this period, at some stations such as Km161+100; Km165+050, waste soil was disposed in

Red river area that affects river corridors and risks spilling into Red river. The Consultant has

requested the Contractor to deal with this promptly in letter No. GET3/DOOSAN/A6/518 on

23th February 2011.

In weekly site inspections, the Consultant has frequently reminded the Contractor to ensure

natural water flow of streams and river corridors.

March

This month, the construction activities of the project haven’t affect seriously the situation of the

Stream and River. However, the package A6 is near to Red river and goes through many small

streams and rivers. Therefore, unsuitable soil was disposed or stored near rivers and streams

at some stations such as Km190+140; Km187+300; Km171; Km165+050; Km173

Km161+100,…, that can affect river’s corridors as well as quality of river water. The


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Consultant has required the Contractor to move them promptly to disposal area which is

approved by the Consultant to ensure the water quality of streams and rivers in project area.

In weekly site inspections, the Consultant has frequently reminded the Contractor to ensure

the natural water flow of the streams and the river corridors.

4.6.7 Package A7

January

At the construction side of Khe U Bridge, on Jan 14, 2011 during the construction process soil

and rocks flew into the stream and intercepted the flow. Consultant has required the Contractor

resolve the above problem immediately and Contractor has mobilized machinery and

manpower to clear the flow and return natural flow to this stream.

At construction sites of Khe U, Khe Sang, Ngoi Bong bridges are the construction sites of

bridges crossing streams and the Contractor has installed sullage pits to ensure flow

circulation and not interfere and cause water pollution, ensuring good maintenance problems

embankments and canals during construction process.

However, during the later process construction, consultant also remind contractor to take

measures to minimize adverse impacts on erosion of embankments and canals of these

streams.

February

At the present, the embankments of these streams at the position of Khe Sang and Khe U

bridges are remained well without having erosion and landsides although the subcontractor let

rubbish and soil to fall into the stream and caused obstruct and changed the flow at some

positions (on Feb 25th, 2011). However, because of the low flow and resolution of the

Subcontractor timely so it did not cause any erosion and landside in both sides of the stream.

March

Currently all of the bridges over the streams are under in the construction process by

contractor such as Khe Sang Bridge at Km191+353, Khe U Bridge at Km204+581, Ngoi Bong

Bridge at Km207+936 have been installed drainage to ensure the flow and no erosion and

landside for the stream. However, On March 11th, 2011, in the construction process at Tan An


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Bridge at Km 194+765, Tan Tien Bridge at Km 209+329, the Subcontractor let land and rock

fall into the stream and obstruct the flow. Consultant ordered the Subcontractor to dredge and

clear the flow at the above location before March 17th, 2011.

However, until March 22nd, at the location of Tan An Bridge of Km194 +765, the flow has not

been dredge and Consultant asked the Subcontractor to seriously implement this measure.

4.6.8 Package A8

January

The construction site of Suoi Trat bridge , the Contractor place the muzzle of rocks in the

stream-bed and then covered with soil and major aim to create a path to move machinery

across the stream without affecting the flow and water quality of the stream. The Consultant

also remind the Contractor picked up garbage at the muzzle of rocks to clear and maintain the

flow, avoid clogging when heavy rain.

Current water level of Bo Ngoi is very low so the construction under the riverbed does not

reduce the flow and effect to the water quality of rivers but the Consultant also remind the

Contractor must have a plan to shield minimize the impact of construction site to the water

quality of the river in case water levels are high or when it rains.

February

In the location of Suoi Trat , the Contractor has installed a temporary bridge for ease of moving

machinery and construction equipment to the other side, however, the rate flow and

maintained embankments and canals are still guaranteed in good condition.

In the location of Suoi Trat, the Contractor has covered a road near the river to facilitate the

construction, which has changed the flow of river. But the water level is low so the changed of

flow doesn cause erosion and landside of both riversides.

March

At the construction site of Suoi Nhu stream, the Contractor has built a temporary bridge near

the middle river to be convenient for moving the machinery and equipment to the other side.

However, the circulation flow and maintain embankment of canal are still guaranteed well.


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At the construction site of Suoi Nhu Bridge, the Contractor has built a road near the middle

river to be convenient for the construction that changed the river's flow. However, the current

water level of river is lover so the changed flow has cause erosion and riverbank landside

4.7 EROSION RISKS AND STABILITY IN SLOPES

4.7.1 Package A1

January

At this time, the weather is in dry season and the route is on the plain area with the low

embankment so the risk of erosion is low. However, at the temporary stream crossings, the

erosion risks are visible so the PSC has requested the Contractor to pay attention and apply

the measures of erosion control and stabilize the bed, inlets and outlets of temporary culverts

to prevent erosion blocking the water flows at these areas.

At the Tan Loi bridge, TL320B bridge and TL402 bridge construction sites, the landslide risks

are visible because the slopes of foundations are upright and close existing road. The PSC

has requested and instructed the Contractor to apply the measures to stabilize the walls of

foundations to prevent landslide breaking existing structures. We will check the implementation

of Contractor in the next site inspections.

February

At the Xuan Phuong bridge construction site, during the site inspection in the third week, we

detected that the temporary stream crossing with unsuitable pipe culverts made high velocity

of water flow at outlet and cause erosion on left riverside toe. This problem can make landslide

on left riverside. The PSC has requested the Contractor to resolve this problem with the

instructions in letter GET1/POS/A1/788 dated February 15th 2011 – Temporary Road Plan.

However, in the site inspection in the fourth week, we found that the problem has not been

solved and it made landslide on left riverside. In the weekly meeting on February 24th 2011,

the PSC has repeated the request of solving this problem. The Contractor promised that they

will mobilize and install 4 more culverts at least in five days to resolve this matter. The PSC,

who considers this matter as a very serious impact, will recheck this section in the next site

inspection on March 01st 2011.

At the embankment sections, we didn’t detect the erosion risk because this time is in the dry

season and the embankment is short. However, the PSC also recommended the Contractor to


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pay attention to the erosion risk and apply the measure to prevent erosion in the coming rainy

season.

At TL302B bridge construction site, the Contractor is building the detour road to prevent the

vibrations from the vehicles that can make landslide on the walls of foundations. This detour

road will be finished on February 28th 2011. At Tan Loi bridge construction site, the Contractor

has set the stakes in the ground close to the wall of foundation to prevent landslide.

March

At Xuan Phuong bridge construction site (Ca Lo river), by observation during site inspection on

March 01st 2011, we realized that the riverside was no longer eroded after the Contractor

installs two pipe culverts more.

At section Km 2+218 ~ Km 2+960, the erosion blocked the temporary pipe culverts here and at

the section Km 0+775, the temporary drainage also could be blocked by erosion. The PSC has

requested the Contractor to resolve these problems by replace with suitable pipe culverts and

stabilize outlets and inlets of temporary culverts to prevent erosion blocking flows. The PSC

will recheck these sections in next site inspection on March 29th 2011.

4.7.2 Package A2

January

At this time, the weather is in dry season and the route is on the plain area with the low

embankment so the risk of erosion is low. However, at the temporary stream crossings such as

Tan Dung bridge construction site, the erosion risks are visible so the PSC has requested the

Contractor to pay attention and apply the measures of erosion control and stabilize the bed,

inlets and outlets of temporary culverts to prevent erosion blocking the water flows at these

areas.

February

The outlet of temporary pipe culvert and banks in downstream of irrigation canal at Tan Dung

bridge construction site were stabilized so the erosion risk at this area is reduced. Besides, at

the embankment sections, the PSC didn’t find the erosion during the site inspection because

this time is in the dry season and for the most part of embankment is low.


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At section Km 43+400 ~ Km 43+500, the embankment is high and close to the productive soil

and the erosion risk here is high. The PSC has requested the Contractor to apply the measure

to stabilize the slope to prevent erosion into productive soil during the site inspection and in

meeting between PSC, EPMU, Contractor and People’s Committee of Cao Phong commune.

The Contractor has promised that he will implement this requirement before the end of March,

2011.

March

At Song Dao bridge construction site, the Contractor had installed the temporary stream

crossing with unsuitable pipe culvert. The inlet and outlet of this pipe culvert were not stabilized

so the water flow is probably blocked by high erosion risk and sedimentation.

The PSC requested the Contractor to resolve this problem to ensure the water flow as well as

prevent the flood on upstream at this section, and during the site inspection on March 16th

2011, we perceived that the Contractor had dealt this matter by demobilizing the temporary

stream crossing with pipe culvert and restoring the water flow.

4.7.3 Package A3

January

In the construction progress, the soil environment will be affected by the earthworks that

results in erosion and landslide. Erosion and landslide occur in these positions might cause the

removal of vegetation (Ex: Km50-km51; Km73-km76 ...). Currently, there is no report or

findings related to these problems based on these points of view. However, the Consultant has

warned the Contractors to pay attention to regularly monitor and record on the issue.

February

In this period, there is no report or findings related to erosion and landslides. However, the

Consultant has warned the Contractors to pay attention to regularly monitor and record on the

issue.

March


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There was no problem detected related erosion and landslides in this month. However, the

Consultant has warned the Contractors to pay attention to regularly monitor and record on the

issue.

4.7.4 Package A4

January


results in erosion and landslide. Currently, there is no report or findings related to these

problems based on these points of view. However, the Consultant has warned the Contractors

to pay attention to regularly monitor and record on the issue.

February


results in erosion and landslide. Currently, there is no report or findings related to these

problems based on these points of view. However, the Consultant has warned the Contractors

to pay attention to regularly monitor and record on the issue.

March

Currently, there is no report or findings related to these problems based on these points of

view. However, the Consultant has warned the Contractors to pay attention to regularly

monitor and record on the issue.

4.7.5 Package A5

February

To date, no problem of erosion and landslides has occurred in areas of package A5. In site

inspections, the Consultant has frequently remind the Contractor on erosion risks and stability

in slopes in order to ensure safety during construction process for workers as well as local

people and travelers.

March

To date, no problem of erosion and landslides has occurred in areas of package A5. However,

at some access roads such as Km 122+030, when there is heavy rain, soil erosion might


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happen, it leading to erosion of the access road. Therefore, the Consultant has requested the

Contractor to remedy this in letter ref.GET3-KEANGNAM-11-A5-023 on 17th March 2011.

In site inspections, the Consultant has frequently remind the Contractor on erosion risks and

stability in slopes in order to ensure safety during construction process for workers as well as

local people and travelers.

4.7.6 Package A6

January

Package A6 is in the strong separated terrain, with relative slope, narrow folded river-bed in V-

shape and many falls. The alignment section of this area includes terrains as follows:

Medium and high mountains, folded complex block mountains, denudative terrain in Yen Bai

province, valley terrain in the Tectonics - the mountains with erosion agglomeration activities.

For this terrain, beside occurred erosion and agglomeration activities, there is surface runoff

process.

This month, package A6 has developed many construction items on the site. But so far, no

problems of erosion and landslides have occurred in the area of project package A6.

In weekly tests on the site, the Consultant frequently reminded the contractor on erosion risks

and stability in slopes.

February

At this stage, package A6 has developed many construction items on the site. But so far, no

problem of erosion and landslides has occurred in the area of project package A6.


shape and many falls. So in weekly tests on the site, the Consultant frequently reminded the

contractor on erosion risks and stability in slopes in order to ensure safety during executing

construction works for workers as well as local people and travelers.

March

At this stage, no problem of erosion and landslides has occurred in the area of project package

A6. However, at station Km172+300, the constructing area is near a pond, when there is heavy


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rain, landslide situation can occur leading to erosion of the pond edge, which affects the safety

of the project. The Consultant has reminded the Contractor on this issue in letter Ref.GET3-

DOOSAN-11-A6-034 14th March 2011.


shape and many falls. So in weekly inspections on the site, the Consultant has frequently

reminded the Contractor on erosion risks and stability in slopes in order to ensure safety during

executing construction works for workers as well as local people and travelers.

4.7.7 Package A7

January

Now this time is dry season so the amount of water quantity is very little and is lightly rain and

doesn't cause erosion risks and stability in slope. In addition, although hilly terrain, but in the

process of excavation and embankment construction's taluy, the contractor carried out training

and flexed up grading to stabilize roof's slope and until this time has not happened the erosion

and runoff serious.

In addition, the Contractor also dug gutters to avoid water from assembling to soil erosion,

partial runoff.

February

There was no any erosion risk and stability in the construction process in February.

March

In many construction locations, the Contractor had dug up the positive slop and negative slop ,

but until this time has not happened problem about erosion and landslide. However,

Consultant and Client also remind the Contractor to quickly finish top of the drainage of slop to

ensure drainage and prevent erosion, landside when the rainy season is coming.

4.7.8 Package A8

January

Now this time is dry season so the amount of water quantity is very little and is lightly rain and

doesn't cause erosion risks and stability in slope. In addition, although hilly terrain, but in the


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process of excavation and embankment construction's taluy, the contractor carried out training

and flexed up grading to stabilize roof's slope and until this time has not happened the erosion

and runoff serious.

In addition, the Contractor also dug gutters to avoid water from assembling to soil erosion,

partial runoff.

February

In February, the Consultant did not detect erosion risks and stability in slop in the construction

process.

March

In many construction locations, the Contractor had dug up the positive slop and negative slop ,

but until this time has not happened problem about erosion and landslide. However,

Consultant and Client also remind the Contractor to quickly finish top of the drainage of slop to

ensure drainage and prevent erosion, landside when the rainy season is coming.

4.8 HAZARDOUS SUBSTANCES MANAGEMENT

4.8.1 Package A1

January

With the site inspections during the month, we didn’t detect any problem of hazardous

substance management of Contractor. The Contractor has managed the fueling areas better

and there is no leak of oil detected on site. Besides, at the sites, which are under equipment

mobilization such as Bon bridge and Trung Kien bridge, the PSC has recommended the

Contractor to comply with the material and fuel management regulations.

February

By observation during the site inspections, we perceived that the hazardous substances such

as hydrocarbon (acetylene), gas are managed suitably (containers are tight, in good condition

and kept in steel cages with lock for authority).


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The fueling areas is also managed tighter and we didn’t detect the leak of oil in these areas

such as Trung Kien bridge (Km 4+491), Dai Duong bridge (Km 7+392.65) construction sites,

subcontractor PPI’s section (Km 19+300), subcontractor Tan Minh’s section (Km 22+800).

However, during the site inspection in the third week, we detected that the Contractor had not

complied with equipment and vehicle maintenance instructions of Engineer and let oil leaks on

site. The PSC has requested the Contractor to resolve this problem and in the next site

inspection on February 22nd 2011 we perceived that the Contractor had collected the oil and

contaminate soil and disposed of them properly.

March

During the site inspections in month, there was only small leak of oil detected at Bon bridge

construction site. The PSC has requested the Contractor to apply the measure to prevent leak

of oil such as place drip pan under nuzzle, fuel tank; checking and repair leak point as well as

must be attended at all times during fueling.

At other section such as Bon bridge, Xuan Phuong bridge construction sites, the pipes of gas

and oxygen compressed box were tied with unsuitable ties. This problem causes high risk of

leak of gas and explosion. The PSC has requested the Contractor to tightly manage these

material and use suitable clamp to tie pipe of gas and oxygen compressed box.

The PSC will pay attention to these problems to anticipate the risk in hazardous substance

management of Contractor to minimize the risks.

4.8.2 Package A2

January

During the site inspections in month, we didn’t found the leaking of oil or other hazardous

materials. However, we perceived that the fuelling areas at the An Phat sub-contractor’s

section and Ben Gao bridge construction site don’t meet safety codes and be not applied the

environmental protection measures.

The PSC has requested the Contractor to resolve these problems to make sure the safety on

the site as well as ensure that the environmental impact will be mitigated well.

February


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During the site inspection on February 18th 2011, we detected that at the Ben Gao bridge –

abutment 2 construction site there was a little of oil leaked on site because the Contractor did’t

use automatic shut-off nozzle but also didn’t place the drip pan under during fueling

equipment.

The PSC has requested the Contractor to use drip pan and control fueling activity tightly to

prevent the leak of oil onsite.

In the next site inspection on February 23rd 2011, we didn’t detect the leak of oil at this

construction site.

Besides, by observation during the site inspections, we perceived that the hazardous

substances such as hydrocarbon (acetylene), gas are managed suitably (containers are tight,

in good condition and kept in steel cages with lock for authority).

March

During the site inspection this month, there was no serious problem regarding to hazardous

substances management detected.

At the Ben Gao bridge, the fueling area was moved to the level grade area and there was no

oil leakage found.

At other places, the equipment and vehicle maintenance was carried out offsite and there was

no serious sign of oil/or and grease leakage also.

Besides, the PSC also recommended the Contractor to always control tightly the other

hazardous substances management such as hydrocarbon (acetylene), LPG (gas) are

managed suitably (containers are tight, in good condition and kept in steel cages with lock for

authority).

4.8.3 Package A3

January

At stations Km59, Km62, Km60+900, Km77+200, oil tank capacity is 1100m3, it is put on

ground and have any safety measure and prevention overflowing oil risk as approval

Environmental control plan. After many time remind and warning, the Consultant submitted the

Client (letter no GET2-EPMU2-A3-107 dated 1st December, 2010) to stop work in site until the


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Contractor will show treatment appropriately (letter no GET2-POS-A3-295 dated 27th October,

2010 regarding “instruct to storage fuels in site”). However, the Contractor had some explain

(letter no POS321-2010/A3 dated 13th December, 2010) as bellow:

“Prevention measures against oil spills and leaks have been adopted for oil tanks on site, for

example: The tank is made of two steel layers with the bypass pressure valve in order to avoid

of overflow; the supply location has been sprayed with concrete to prevent oil leaks. The tanks

which do not meet the safety and environment standards have been moved out of construction

area (Km59) or are not allowed to use (Km70)”

At Km54+640, oil tank was put on concrete ground and fight fire equipment was installed in

site.

At Km 77+800, in inspection tour on january 3rd 2011, the Consultant has found one oxygen

vessel which use to weld or cut iron, steel in site, its valve is uncovered. The Contractor was

request to stop relate work and overcome this risk immediately before start using this oxygen

vessel.

February

The Contractor store oil by steel big tank or drum in construction site. With the big oil tanks the

Contractor have prevention measures against oil spills and leaks have been adopted for oil

tanks on site, for example: The tank is made of two steel layers with the bypass pressure valve

in order to avoid of overflow; the supply location has been sprayed with concrete to prevent oil

leaks. The tanks which do not meet the safety and environment standards have been moved

out of construction area (Km59) or are not allowed to use (Km70)”. Beside the big oil tanks

which capacity are 1100m3, many oil drums lying about disorderly in site. The Contractor is

reminded to manage and mark the boundaries of hazardous substances store area. They must

install some sand drums in this area to against oil spills, leaks or fire risk.

March

The Contractor store oil by steel big tank or drum in construction site. With the big oil tanks the

Contractor have prevention measures against oil spills and leaks have been adopted for oil

tanks on site, for example: The tank is made of two steel layers with the bypass pressure valve

in order to avoid of overflow; the supply location has been sprayed with concrete to prevent oil

leaks. The tanks which do not meet the safety and environment standards have been moved


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out of construction area (Km59) or are not allowed to use (Km70). Beside the big oil tanks

which capacity are 1100m3, many oil drums lying about disorderly in site. The Contractor is

reminded to manage and mark the boundaries of hazardous substances store area. They must

install some sand drums in this area to against oil spills, leaks or fire risk.

4.8.4 Package A4

January

Up to now, the Contractor regroup oil tanks in site to attend to construction work (Km 92+200,

Km104+200...). These oil tanks were put on ground without any safety or prevention fire or

overflow oil measure. It is very dangerous if fire risk would happen or oil tank is holed or leak

out oil which will pollute seriously local water and soil environment. This matter, the Consultant

had instruction letter to ensure safety for storage fuel in site.

February

In some inspection tours (from 14th- 26th February) the Consultant has detected all oil drums

was lying about disorderly in site without safety method (km92+200, Km105+300…). Namely,

there is not having safety fence around fuel tanks and reinforce foundation by concrete to

avoid oil or fuel overflow risk, fire fighting equipment. The Consultant requested the Contractor

to resolve this matter and recheck carefully.

March

Oil drums were ungrouped in site because it was rain almost day in March. Therefore the

Contractor can not implement in March. The Consultant has not detected any problem about

hazardous substance in site along package A4.

4.8.5 Package A5

February

Up to now, there is no serious problem due to hazardous substances within project area. Most

fuel stations are equipped with fire prevention and fighting equipments. So far, there is no

problem of serious effects by hazardous substances in the project area.In weekly site

inspections, the Consultant has advised the Contractor to manage effectively the hazardous


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substances in order not to affect the environment and to ensure safety for workers, local

people and travelers.

March

Up to now, there is no serious problem due to hazardous substances within project area. Most

fuel stations are equipped with safety fences, fire prevention and fighting equipments and

signs.

In order to emphasize hazardous substances management, the Consultant has requested the

Contractor to hold meetings on safety to raise the awareness of hazardous substances

management of the workers and the project staff.

In weekly site inspections, the Consultant has advised the Contractor to manage effectively the

hazardous substances in order not to affect the environment and to ensure safety for workers,

local people and travelers.

4.8.6 Package A6

January

At present, package A6 has a laboratory at the Doosan office (Km 165) and the fuel stations of

the subcontractors. Most fuel stations and laboratories are equipped with fire prevention and

fighting equipments. So far, there is no problem of serious effects by hazardous substances in

the project area.

However, in some areas such Km185+200 (Ngoi Don bridge), because of low awareness of

the workers, empty oil tanks were put out on the ground without collecting. The Consultant has

reminded the Contractor on this issue in weekly site inspections.

February

In this period, most fuel stations and laboratories are equipped with fire prevention and fighting

equipments. So far, there is no problem of serious effects by hazardous substances in the

project area.


hazardous substances effectively to ensure safety for workers as well as local people and

travelers.


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March

In this period, most fuel stations and laboratories are equipped with fire prevention and fighting

equipments. So far, there is no problem of serious effects by hazardous substances in the

project area.


hazardous substances effectively, consolidate the safety mechanism and the equipments for

preventing material leaking in order not to affect the environment and ensure safety for

workers as well as local people and travelers.

4.8.7 Package A7

January

In January 2011 consultant confirmed that management activities of hazardous substances

management complied with regulations. Therefore, it did not cause adverse impacts to the

environment. Oil and waste oil tanks are now far away from water sources, this position will

have risks of flooding banned sign of fire and fire extinguisher.

Because of the borrow pile process is conducted by man and did not use bentonite therefore it

did care about management issues of bentonite during the drilling process of borrow pile.

However, consultant also reminded the contractor to pay attention to the construction process

later if using bentonite and especially in management issues of oil and waste oil.

February

In February, the Consultant did not detect violations of a harmful waste management in the


March

In March, Consultant did not detect violations of a harmful waste management in the


4.8.8 Package A8

January


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Unsuitable material disposals such as waste oil from worker's camps of Tuan Tu Co.,ltd at

Km237+060 and Viet Dung Co.,ltd Km232+900 is not be collected in tanks and spilled over to

the ground. The Consultant issued a warning letter and required the Contractor to overcome

before January 5th, 2011.

In the construction Suoi Trat and IC18 bridge, bentonite is not be collected for re-use or

transported to the landfill as prescribed bentonite of place as recovery bentonite has high

concentrations of alkali ( pH = 8-11), if not well managed will greatly affect productivity of crop

yields and livestock when using contaminated water sources by recovery bentonite.

After the Consultant reminded and given an warning messages to overcome it, the Contractor

has installed the barrel bentonite for re-use and avoid environmental pollution at construction

sites of bridges like Suoi Trat and Ngoi Bo.

February

On February 24th, 2011, Vinaconex 34 Company of a number of oil barrels and cans at Km 238

– Km 241 were not stored in the approved place that indiscriminately threw near the worker's

camps. Consultant asked the subcontractor to move them to the required storage location.

Also, the Consultant did not detect any violation of the contractor for hazardous waste

management during construction.

March

In March, Consultant did not detect violations of a harmful waste management in the


4.9 UNSUITABLE MATERIAL DISPOSALS AND BORROW PITS

4.9.1 Package A1

January

The Contractor has submitted the disposal place for unsuitable material of underpass QL2B

construction site. With the checking and assessment onsite, the PSC didn’t have any

opposition because the disposal place is a borrowed pit and after excavating, the top soil and

excavated soil in underpass QL2 construction site will be disposed there for planting purpose.


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However, the PSC has also requested the Contractor to have enough permission certificated

of local authority before implementing the disposal activity.

February

During the month, there was no disposal place submitted by Contractor. The unsuitable

material for embankment such as top/or organic soil is stored along the sites and in the sites

limits for planting purpose in the future and the quantity of this material is small.

The borrow pits, which were approved by Geological and Material Engineer, are almost

material planting hills with for the most past of eucalyptus and acacia mangium/and or acacia

auriculiformis. In addition, there are some borrow pits were used in the previous project and

there is no tree or animal growing on.

March

At Trung Kien bridge construction site, we detected that the mud after recycling bentonite

slurry had discharged offsite and spilled into adjacent paddy filed during site inspection on

March 07th 2011, due to the negligence of workers. The PSC has requested the Contractor to

manage tightly the unsuitable material disposal activity. The discharged mud must be removed

to the approved disposal place. Besides, the Contractor has to contact with land owner to

negotiate for compensation.

In this month, the Contractor had submitted the borrow pit 21 at Dong Mo hill, Nam Son

commune, Soc Son district, Hanoi. This area is material planting hills with the most of

eucalyptus. The PSC has approved this borrow pit.

4.9.2 Package A2

January

The Contractor had submitted the disposal places for unsuitable material of package A2 and

the PSC has checked and don’t have any opposition. However, the Contractor has to have

enough the permission certificates from local authorities before doing disposal activities and

the PSC also recommended the Contractor about this.

February


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In this month, the Contractor has not submitted more any disposal area. The unsuitable

material for embankment such as top/or organic soil is stored along the sites and in the sites

limits for planting purpose in the future and the quantity of this material is small.

The borrow pits, which were approved by Geological and Material Engineer, are almost

material planting hills with for the most past of eucalyptus and acacia mangium/and or acacia

auriculiformis. In addition, there are some borrow pits were used in the previous project and

they are treeless hills.

March

There was no disposal place or borrow pit submitted this month. During site inspections, we

perceived that the quantity of unsuitable materials (spoil and mud) is very small (approximate

0) so there was no disposal activity of Contractor this month.

4.9.3 Package A3

January

The contractor already submitted discharging areas record for section 1, section 2, section3,

section 4, section 5 and section 6. Pursuant to item 2; article 10, section 1, chapter II of Decree

59/2007/ND-CP, the planning of solid waste management at local level issued and approved

by the Chairman of provincial People’s Committee. Currently, the Contractor is requested to

determine co-ordinates (X, Y) of all disposal areas in package A3 to ensure the management

of disposal area closely (letter no GET2-POS-A3-366 dated 15th December, 2010). The

Consultant approved disposal area at section 1, section 5 and section 6 to implement after the

Contractor promised would addendum all information about discharging area’s co-ordinates.

February

The Contractor has submitted disposal areas record for section 1, section 2, section3, section

4, section 5 and section 6. The Consultant approved disposal area at section 1, section 3,

section 5 and section 6 to implement after the Contractor promised would addendum all

information about discharging area’s co-ordinates. The disposal area document of section 2

and 4 are lacked approved by the Chairman of provincial People’s Committee pursuant to item

2; article 10, section 1, chapter II of Decree 59/2007/ND-CP. Therefore, to ensure plan for

construction work and environmental protection, the Contractor is requested to complete all


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legal document of disposal areas for 2 above section to activate these disposal areas. Ref.

GET2-POS-A3-451 dated February 25th, 2011.

March

The Contractor has submitted disposal areas record for section 1, section 2, section3, section

4, section 5 and section 6. The Consultant approved disposal area at section 1, section 3,

section4, section 5 and section 6 to implement after the Contractor promised would addendum

all information about discharging area’s co-ordinates. The document of disposal area of

section 2 is lacked approved by the Chairman of provincial People’s Committee pursuant to

item 2; article 10, section 1, chapter II of Decree 59/2007/ND-CP. Therefore, to ensure plan for

construction work and environmental protection, the Contractor is requested to complete all

legal document of disposal areas for above section to activate these disposal areas. Ref.

GET2-POS-A3-451 dated February 25th, 2011 and ref. GET2-POS-A3-482 dated March 14th,

2011.

4.9.4 Package A4

January

The Contractor submitted disposal area document of Cam Khe district. But this legal document

is lacked of landlord's cadastral register was notarized and co-ordinate(X,Y) of disposal area.

February

The Contractor submitted disposal areas record for Cam Khe (section 1, 2) district and Ha Hoa

district (section 3, 4, 5, 6). Pursuant to item 2; article 10, section 1, chapter II of Decree

59/2007/ND-CP, the Consultant approved all disposal areas for package A4 to implement after

the Contractor promised would addendum all information about discharging area’s co-

ordinates and drive in a stake and stretch a wire at the angles to fix the boundaries of disposal

areas. The Contractor is moving unsuitable material out of site to these disposal areas.

March

The Contractor submitted disposal areas record for Cam Khe (section 1, 2) district and Ha Hoa

district (section 3, 4, 5, 6). Pursuant to item 2; article 10, section 1, chapter II of Decree

59/2007/ND-CP, the Consultant approved all disposal areas for package A4 to implement. The


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Contractor was addendum all information about discharging area’s co-ordinates and they will

drive stake and stretch a wire at the angles to fix the boundaries of disposal areas.

4.9.5 Package A5

February

At present, 8 unsuitable material disposals of package A5 has been approved by the

Consultant. Some other disposal areas have submitted but have not been approved by the

Consultant:

No Location Approval

Capacity (m3) Note Yes No

1 Km113+050-Km113+150 (No.5-A) X 5641.111

2 Km113+050-Km113+150 (No.5-B) X 6808.732

3 Km113+050-Km113+150 (No.5-C) X 2101.210

4 Km113+050-Km113+150 (No.5-D) X 3860.360

5 Km113+050-Km113+150 (No.4) X 10946.510

6 Km116+500 X 1045.000

7 Km118+800 X 24990.000

8 Km119+680-Km119+700 X 16441.000

9 Km116+223 X 5000.000

In this period, the disposal areas haven’t affected environment and safety. The Consultant has

requested the Contractor to finish the documents of unsuitable disposal areas promptly with

authorities according to the rules of Social Republic of Vietnam and then submit to the

Consultant so that they can be considered and accepted.

In coming months, the Consultant will continue inspecting unsuitable disposal areas to ensure

the environment of the project.

March


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Consultant.

In this period, the disposal areas haven’t affected environment and safety. The Consultant has

requested the Contractor to finish the documents of unsuitable disposal areas promptly with

authorities according to the rules of Social Republic of Vietnam and then submit to the

Consultant so that they can be considered and accepted.

In coming months, the Consultant will continue to inspect unsuitable disposal areas to ensure


4.9.6 Package A6

January



Consultant:

No Location Approval

Capacity Note Yes No

1 Km 166+600 X 3,258 m3 Check again the capacity (m3)

2 Km 167+300 X 5,380 m3 Check again the capacity (m3)

3 168+700 X 24,318 m3 Check again the capacity (m3)



6 Km 175+240 X 6938.96 m2 Submit the capacity (m3)


8+9 Km 175+720(2); X

346.554 m2

541.624 m2 Submit the capacity (m3)




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14 Km184+900 X 4646 m2 Submit the capacity (m3)

15 Km188+200 X 162582 m3

16 Km190+110 X 17032 m3

17 Km186+140 X 7231 m2 Submit the capacity (m3)

18-22

Km153+392-Km153+870

(5 pits) X

(1) 1500 m2

(2) 3000 m2

(3) 3000 m2

(4) 1200 m2

(5) 3000 m2

Submit the capacity (m3)

23-28

156+073-159+157

(6 pits) X

1) 2077 m2

(2) 2171 m2

(3) 6466 m2

(4) 7526 m2

(5) 3422 m2

(7) 6877 m2

Submit the capacity (m3)

Package A6 goes through hilly areas, so it has a large amount of surplus land. Presently, in

some areas such as Km162+900 (Ngoi Giam bridge); Km159+200 (Ngoi Cong bridge);

Km175+020; Km186+140; Km187+500; Km188+800 (Suoi Nau bridge); Km171+900;

Km175+020, unsuitable soil was disposed at the positions which had not accepted by the

Consultant. The Consultant has requested the Contractor to deal with this situation promptly,

to finish the documents of unsuitable disposal areas as soon as possible and then submit to

the Consultant so that they can be considered and accepted.

In coming months, the Consultant will continue inspecting unsuitable disposal areas to ensure


February


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At present, 17 unsuitable material disposal areas of package A6 have been approved by the


Consultant.

Package A6 goes through hilly areas, so it has a large amount of surplus land. Presently, in

some areas such as Km161+100; Km165+050, unsuitable soil was disposed at the positions

which had not accepted by the Consultant. The Consultant has requested the Contractor to

deal with this situation promptly, to finish the documents of unsuitable disposal areas as soon

as possible and then submit to the Consultant so that they can be considered and accepted.



March

At present, 16 unsuitable material disposal areas of package A6 have been approved by the


Consultant.

Package A6 goes through hilly areas, so it has a large amount of surplus land. The Consultant

has requested the Contractor to deal with this situation promptly, to finish the documents of

unsuitable disposal areas as soon as possible and then submit to the Consultant so that they

can be considered and accepted.



4.9.7 Package A7

January

Currently the legal procedure for the landfills of unsuitable material disposals is not completed.

Consultant issued a remind letter and required the Contractor to carry out this work before

January 28, 2011.

Some landfills of unsuitable material disposals which were processed according to the request

of the Environmental Police of Lao Cai province and the consultant & investor. However, the

planting of grasses to avoid erosion has not carried out. After repeatedly been reminded by


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consultant, the contractor planted grasses on some location of landfill at Km195+800 on Jan

7th, 2011. Consultant required the contractor continue to grow grasses at the remained

landfill.

On January 14th, 2011 at the landfills of unsuitable material disposals at Km194 +200; Km195

+800; Km199+500 and Km207 +000 have been grown grasses to avoid erosion and return the

environment landscape under the order of Police Department's environmental crime prevention

in Lao Cai province and Supervision Consultant's direct.

February

The landfills of unsuitable material disposals at KmKm190+400; Km191+600; Km195+800;

Km194+200; Km199+500 been planting and greening grass to keep soil from being washed

down the Red River. However, due to bad weather conditions and therefore some kinds of

trees have been died at waste disposal Km190+400; Km195+800; Km199+500. Consultant

has requested the contractor to take measures to replant the entire greening position on these

landfills in March 2011

In addition, Consultant also reminded the Contractor to complete legal procedures related to

the landfills of unsuitable material disposals. But so far the Contractor has not been completed.

Consultant has requested the Contractor to complete this before Feb 31st, 2011

March

The landfill of unsuitable material disposals at Km190 +420 is planted corn to cover green and

limit soil erosion into the Red River, however Consultant required the Subcontractor continue

to grow grasses, trees for the location of plain side and the remained vacant position. Time for

completion is before March 31st, 2011.

In addition, Consultant also reminded the Contractor to complete legal procedures related to

the landfills of unsuitable material disposals. But so far the Contractor has not been completed.

Consultant has requested the contractor to complete this before March 31st, 2011.

4.9.8 Package A8

January


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Currently the Contractor has completed the legal procedures for the landfills of unsuitable

material disposals at the stage 1 with 19 locations of landfills is approved by the People's

Committee of Bao Thang district. However, now some newly landfills have not approved by

the People's Committee of Bao Thang district. The Consultant has issued letter on December

6th, 2010 on this matter and as well as suggested the Contractor should complete the above

legal procedures for submission to the Consultant and Client in the earliest time.

February

Currently the Contractor has completed the legal procedures for the landfills of unsuitable

material a disposal at the stage 1 with 19 locations of landfills is approved by the People's

Committee of Bao Thang district. However, now some newly landfills have not approved by the

People's Committee of Bao Thang district. The consultant has issued letter on Dec 6, 2010 on

this matter and as well as suggested the Contractor should complete the above legal

procedures for submission to the Consultant and Client in the earliest time.

March

Currently the Contractor has completed legal procedure for the landfill of unsuitable material

disposals at the stage 1 with 19 locations of landfills that have been approved by Bao Thang

district People's Committee. But now some landfill of unsuitable material disposal such as

Km218+500; Km218+700; Km219+500; Km222+200; Km222+800; Km224+020; Km227+900;

Km231+000 have not finished legal procedure to submit to the Consultant for approval.

Consultant has reminded many times and composed the warming letter on December 6th,

2010 to request the Contractor to complete them before April 23rd , 2011.

4.10 WORKER’S CAMPS CONDITIONS

4.10.1 Package A1

January

At the NH2B bridge construction site, the domestic solid waste still is disposed surrounding

worker’s camp. The PSC has recommended and requested the Contractor clean the site,

camp and collect wastes and dispose of them properly many times but till now there is nothing

changed. The PSC once again requested the Contractor to resolve this problem and in the site

inspection on January 25th, 2011 we perceived that the Contractor was cleaning worker’s

camps. However, the unsuitable backhouse is still used so the fresh fecal matter is being let in


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directly ambient environment and makes pollution. The PSC has requested the Contractor to

remove the unsuitable backhouse and collect fresh fecal matter and dispose of it properly. We

will recheck this matter in the next site inspection.

At the I.C3 construction site, the backhouse was installed but unsuitable (the same case of

NH2B construction site) and it lets fresh fecal matter in directly environment and makes

pollution. Besides, at the TL302CII bridge construction site, the Contractor has not installed

backhouse with septic tank for worker. The PSC has applied the stronger measures to request

the Contractor to comply with the requirements as stated in the contract with VEC and the

Contractor promised that they will install the suitable backhouses for the workers in February,

2011. We will check the implementation of Contractor in the next site inspections.

February

During the site inspection dated February 11th 2011, we perceived that the domestic solid

waste surrounding worker’s camp at NH2B bridge construction site was collected. Besides, the

unsuitable backhouse has been removed and the septic tank also has been cleaned in the

third week (on February 17th 2011) after the PSC had applied the measure of suspending the

procedure of payment progress to this section.

At the Interchange 3 construction site, we found that the unsuitable back house has not been

removed and there was no septic tank installed during the site inspection on February 10th

2011. The PSC has requested the Contractor to resolve these problems and applied the

measure of suspending the procedure of payment progress to this section until the Contractor

corrects the matters. On February 21st 2011, the Contractor submitted the report of Engineer’s

request implementation. Having review and checked the site on February 22nd 2011, we

perceived that the Contractor removed unsuitable backhouse and the septic tank is being built.

The workers who are working in TL302CII bridge construction site have been renting the

house of local people with enough sanitary facilities.

March

During the site inspection on March 01st 2011, we detected that the Contractor had not

installed the backhouse with septic tank for worker at worker’s camp in TL402 bridge

construction site. The PSC has requested the Contractor to urgently install enough sanitary

facilities to make sure the living condition for workers. On March 15th 2011, we perceived that


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the Contractor has rented the house of local people near the site with enough sanitary facilities

for workers.

At TL302CII bridge construction site, the Contractor had removed the worker’s camp and has

rented the house of local people with enough sanitary facilities for workers.

At the Cam1 bridge, Cam2 bridge and Army1 bridge construction sites, the Contractor has

been building camps for workers and we also recommended the Contractor to provide enough

sanitary facilities to ensure living condition for workers. The PSC will recheck these sections in

the next site inspection on March 29th 2011.

4.10.2 Package A2

January

At the worker’s camp of sub-contractor An Phat 1 (Km 35+300), we found that the Contractor

didn’t provide the sanitary facilities such as garbage bin so the domestic solid waste was

disposed surrounding the camp. This matter made the camp dirty and probably affects the

health of workers. The PSC has requested the Contractor to provide the sanitary facilities for

workers as well as clean the camp to make sure their health and living condition. In the last

site inspection, we perceived that the Contractor has implemented the requirements of

Engineer.

At the other sections such as Lo river bridge, Tan Minh section, Tasco section etc, the worker’s

camps are being kept in tidy, cleanliness and sanitary condition.

February

The subcontractor An Phat 1 (section 3: Km 35+300 ~ Km 36+910) has already rented the

house of local people for workers with sanitary facilities. Besides, during the site inspections in

the third week and fourth week, we perceived that at the sections of Tan Minh, Tasco

subcontractors and at the Lo river bridge construction sites the worker’s camps were kept in

tidy, cleanliness and sanitary condition.

At other sections such as section 2 of subcontractor ICON4 (Km 32+700 ~ Km 35+300),

section 4 and 5 of subcontractor Phuoc An (Km 36+910 ~ Km 40+960), the subcontractors has

also rented the house with enough sanitary facilities for workers.


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March

By observation during this month, we perceived that the Contractor still maintain the worker’s

camps in cleanliness and sanitary condition. The worker’s camp of subcontractor 465 (Lo river

bridge) is being built and the PSC has recommended the Contractor to provide enough

sanitary facilities for workers to ensure the living condition of them.

4.10.3 Package A3

January

Tents were still maintained hygienically, all garbages were collected, Toilets were installed …

February

The Consultant has detected much rubbish near worker’s camp at Km74+300 in the second

week (14th-19th February). The main reason is the Contractor does not pay much attention to

preserve environmental sanitation. And they are uncontrollable their sub-contractor. In

addition, worker consciousness is poor in environmental protection field. Therefore, the

Contractor is requested to propagandize for their worker to improve their consciousness.

This situation is improved in the second week (21st – 26th February). The Contractor collected

all rubbish near worker’s camps.

All worker’s camps in package were installed hygiene toilet, ambulance box, fire fighting

equipment but no waste bin (Km74+300). The Consultant request the Contractor must install

waste bin in every camps pursuant to approval Environmental Control Plan.

March

All worker’s camps in package were installed hygiene toilet, ambulance box, fire fighting

equipment and waste bin. After the Consultant warned in the last month, the Contractor

reminded their worker and cleaned all camp. Therefore, in inspection tours the Consultant has

not detected rubbish near worker’s camp.

4.10.4 Package A4

January


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At present, the Constructor is clearing site and removing topsoil. After inspection tours in

January, the Consultant has not found many rubbish in site. But the Contractor was warned

clean site often following approval ECP.

Beside, unsuitable material which is arised from site clearing and topsoil removing activities,

was piled up many in site. The Contractor plan to transport all unsuitable material out of site

when they complete all legal document of disposal zone of Ha Hoa and Cam Khe districts.

February

All worker’s camps in package A4 are not installed hygiene toilet, waste bin and ambulance

box, fire fighting equipment. To ensure safety and conditions of worker’s health, the Consultant

request the Contractor must install all above equipment in every camps pursuant to approval

Environmental Control Plan.

March

All worker’s camps in package A4 are not installed hygiene toilet, waste bin and ambulance

box, fire fighting equipment. To ensure safety and conditions of worker’s health, the Consultant

request the Contractor must install all above equipment in every camps pursuant to approval

Environmental Control Plan.

4.10.5 Package A5

February

In weekly environment and safety inspections of the Consultant, worker’s camps were well

maintained, most of worker’s camps have equipment to prevent fire, garbage container’s (

trash) and septic toilets and cleaned daily by workers.

The Consultant will continue to pay attention to worker’s camp conditions in coming months in

order to detect timely and request the Contractor to have measures to ensure the living

conditions for the worker in camps.

March

In weekly environment and safety inspections of the Consultant, worker’s camps were well

maintained, most of worker’s camps have fire prevention and fighting equipments, garbage

container’s ( trash) and septic toilets and cleaned daily by workers.


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However, at worker’s camps of the Subcontractor Locogi 15, there was no fire prevention

equipment and first aid box, the Consultant has requested the Contractor to supply these

equipments to ensure safety of the project.


oder to detect timely and request the Contractor to have measures to ensure the living


4.10.6 Package A6

January

Up to now, package A6 has about 16 subcontractors with about 23 worker’s camps.

No. Name of Subcontractor Location Length

(Km)

Workers’

camps

1 Quang Trung Trading &

Construction JSC

Km150+900-Km153+318 2.42 2

2 Truong Loc Trading &

Construction JSC

Km153+392-Km155+870 2.48 1

3 LICOGI 13 Km156+073-Km159+157 3.08 1

4 An Sinh JSC Km159+259-Km163+192 3.80 1

5 JS Vina Km163+192-Km169+387 6.05 1

6 CAVICO VIETNAM Km169+437-Km171+000 1.56 1

7 CITECHCOM JSC Km171+000-Km172+000 1.00 1

8 AVICO VIETNAM Km172+000-Km173+405 1.41 2

9 An Sinh JSC Km173+463-Km176+713 3.15 1

10 WEICOVINA Km176+713-Km182+114 5.40 4

11 Mien Trung Tranding &

Construction JSC

Km182+214-Km186+200 3.99 1

12 Nghe An Trade Building

JSC

Km186+730-Km190+420 3.70 2

13 VIETBUIL Bridges on the site 2

14 CAVICO II VIETNAM The tunnel (Km186+200 –

Km186+730)

1

15 VINASAN Batching plant (Km163) 1


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16 Stone White Batching plant (Km180) 1

In this stage, Package A6 has carried out construction activities on the entire route, so a

relatively large of labour force has been mobilized. Therefore, some contractors have hired

local people’s houses to become worker’s camps or pitch camps, most of worker’s camps

have equipment to prevent fire, garbage container’s ( trash) and septic toilets. Most camps are

cleaned daily by workers. They collect garbage and treat by manual methods such as burning

or burying. Up to now, worker’s camp conditions are well maintained. The Consultant will

continue pay attention to worker’s camp conditions in coming months in order to detect timely

and request the Contractor to have measures to ensure the living condition for the worker in

camps.

February

Up to now, package A6 has about 16 subcontractors with about 23 worker’s camps.

No. Name of Subcontractor Location Length (Km)

Workers’

camps

1 Quang Trung Trading & Construction JSC

Km150+900-Km153+318 2.42 2

2 Truong Loc Trading & Construction JSC

Km153+392-Km155+870 2.48 1

3 LICOGI 13 Km156+073-Km159+157 3.08 1

4 An Sinh JSC Km159+259-Km163+192 3.80 1

5 JS Vina Km163+192-Km169+387 6.05 1

6 CAVICO VIETNAM Km169+437-Km171+000 1.56 1

7 CITECHCOM JSC Km171+000-Km172+000 1.00 1

8 AVICO VIETNAM Km172+000-Km173+405 1.41 2

9 An Sinh JSC Km173+463-Km176+713 3.15 1

10 WEICOVINA Km176+713-Km182+114 5.40 4

11 Mien Trung Tranding & Construction JSC

Km182+214-Km186+200 3.99 1

12 Nghe An Trade Building JSC

Km186+730-Km190+420 3.70 2

13 VIETBUIL Bridges on the site 2

14 CAVICO II VIETNAM The tunnel (Km186+200 – Km186+730)

1


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15 VINASAN Batching plant (Km163) 1

16 Stone White Batching plant (Km180) 1

In this stage, package A6 has carried out construction activities on the entire route, so a

relatively large of labour force has been mobilized. Therefore, some contractors have hired

local people’s houses to become worker’s camps or pitch camps, most of worker’s camps

have equipment to prevent fire, garbage container’s ( trash) and septic toilets. Most camps are

cleaned daily by workers. They collect garbage and treat by manual methods such as burning

or burying. Up to now, worker’s camp conditions are well maintained. The Consultant will

continue to pay attention to worker’s camp conditions in coming months in order to detect

timely and request the Contractor to have measures to ensure the living conditions for the

worker in camps.

March

Up to now, worker’s camps were well maintained, most of worker’s camps have fire

prevention and fighting equipments, garbage container’s (trash) and septic toilets and cleaned

daily by workers, they collect garbage and treat by manual methods such as burning or

burying.

However, because the Contractor hasn’t paid enough attention to worker’s camp conditions, at

some stations like Km 190+100, the living conditions of the workers in camps were not

ensured, there was no septic toilets and wastewater treatment system.

The Consultant has requested the Contractor to promptly improve and ensure the living

conditions of the workers at this station in letter No. GET3-DOOSAN-11-A6-033 on 12th March

2011.


order to detect timely and request the Contractor to have measures to ensure the living


4.10.7 Package A7

January


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Worker's camps at the casting culverts of Km194 +670, waste cement packaging was not

collected in approved places and discharge indiscriminately at construction site. Consultant

has requested the Contractor to immediately collected and taken to a place where treatment

prescribed.

Also at worker's camps of the casting culverts Km194+670 Consultants found that the

Contractor has collected waste cement packaging and burn next to the worker's camps.

Consultant asked to stop and remind the Contractor warned about the above acts as well as

remind the Contractor of safety rules and sanitation at worker's camps.

February

When checking worker's camps at Khe Sang, Khe Dai and Khe U bridges at February 25th , all

worker's camps have septic tanks workers as prescribed, rubbish are collected and

transported to the place of treatment prescribed by the local's requirement.

March

At the present, the worker's camp of Chau Que Thuong Bridge does not have toilet for workers

and wastebasket existing. The Contractor gave the reason why that is the volume of work is

not much and workers move from the worker's camps of Khe Sang bridge to work so they don't

live and sleep directly but only the security guard stays here. Consultant asked the Contractor

to build toilet and install garbage bin before taking workers to the worker's camps. The

construction of toilet and installation of garbage bin must be complete before March 17th, 2011.

However, to the date of March 22sd, the Subcontractor still has not implement to build toilets

for workers and install garbage bins at the workers' camps of Chau Que Thuong Bridge.

Consultant had warned the Contractor by the letter Ref: GET4 GRBCC-334 dated on March

23rd, 2011.

At the cast site of culvert at Km194 + 670, some cement bags and waste are discharge

indiscriminately into the construction site near the worker's camps. Consultant has required the

Subcontractor to immediately collect and transport them to the place of prescribed treatment.

4.10.8 Package A8

January


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At worker's camps of Viet Dung Co.,Ltd at Km232+900, garbage is not collected and taken to

where the prescribed treatment place. The Consultant warmed and reminded the Contractor to

install collection garbage bins and transport to the place of prescribed treatment before

January 5th , 2011.

Date January 5th, 2011 the Contractor has collected garbage and transported to the prescribed

treatment place according to the guidance of Consultant.

February

February 24th, 2011 there are a lot of the barrels and cans of oil of Vinaconex 34 Km238-

Km241 indiscriminately threw near worker's camps workers. Consultant asked the

Subcontractors to remove them to the stored place as prescribed.

Also, in February, worker’s camps of the construction units are guaranteed well such as

worker's camps of Suoi Trat, Ngoi Bo, IC 18 bridges. These worker's camps have septic tanks;

waste was collected and transported according to local regulations.

March

The workder's camp of Lang Tra Bridge, the Subcontractor is currently constructing and

preparing to start constructing Lang Tra Bridge. Current worker's camps of Lang Tra Bridge

haven't installed toilets for workers and no garbage bins. The Consultant required the

Subcontractor to build toilet and install tanks to collect garbage for the workers before taking

the workers to the construction site.

4.11 WASTE AND CLEANLINESS IN SITE

4.11.1 Package A1

January

During the site inspections, we perceived that the Contractor managed the site better. The

construction solid waste and surplus materials were collected and disposed properly. The PSC

has recommended the Contractor to maintain the tighten management on sites to keep the

sites in tidy, cleanliness and sanitary condition as well as make sure the safety to workers.

February


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We perceived that the construction sites are kept in tidy and cleanliness condition during the

site inspections. Besides, we also usually recommend the Contractor to tightly manage and

control the construction sites such as implementing the safety housekeeping work often to

keep the site in tidy and sanitary condition and ensure the safety as well as healthy

environment for workers.

March

During the site inspections in month, we perceived that the sites were kept in sanitary

condition. The PSC has also recommended the Contractor to manage site tightly to maintain

tidy and cleanliness condition and safety as well as healthy environmental for workers.

4.11.2 Package A2

January

With site inspection during the month, we perceived that the Tan Dung bridge construction site

was dirty with debris and leftover materials. The PSC has requested the Contractor to

implement the safety housekeeping work often in this site to keep the site in tidy, cleanliness

and sanitary condition. In the last site inspection in month, we perceived that the Contractor

has cleaned the site.

At the other sections, the Contractor kept the sites in good condition and the PSC also

recommended the Contractor to maintain this situation always.

February

During the site inspection on February 09th 2011, we found that the construction site at Lo

river bridge construction area was untidy because the site had not been rearranged before the

workers came back home to enjoy Tet holiday.

The PSC has requested the Contractor to rearrange and clean the site right after the workers

come back to work and in the next site inspection in the third week, we perceived that the

Contractor had cleaned and rearranged the site.

At other sites, by observation during site inspections in month, we perceived that the sites

were kept in cleanliness and sanitary condition.

March


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During inspecting the construction sites this month, we perceived that they almost were kept in

tidy, cleanliness and sanitary condition.

On March 16th 2011, during site inspection we detected that there were some empty oxygen

compressed boxes put on the ground in disorder waiting for change of others at the Lo river

bridge, abutment 1. The PSC requested the Contractor to immediately keep them in the

regulated place and keep the site in tidy and cleanliness condition.

4.11.3 Package A3

January

There were so many life garbages, scrap iron, Bentonite sacks uncontrolledly thrown without

any collections (KM60+900, Km51, Km73). Consultant requested Contractor to collect all kinds

of rubbishes and tranport them to stipulated area.

February

In inspection tour on the second and third week (14th – 26th February), the Bridge construction

site at Km54+600 (IC8), Km77+700 (Red river bridge), Km60+900 (Bai Bang railway flyover)

are not cleaned. In February, it is rain much. So the Contractor can not transport unsuitable

material which is wet pile up much in site. They must wait some day later to transport waste

out to site when it is drier.

March

There is not much rubbish in site. But unsuitable material is piled up much in site because it

was rain many days in March (Km68+000, Km63+200, Km77+200…). It is very hard to remove

unsuitable material out of site to the disposal areas. The Consultant issue instruct letter

regarding this matter Ref GET2-POS-A3-487. And the Contractor promised they will transport

all unsuitable material to the disposal areas when it stops raining.

4.11.4 Package A4

January

At present, the Contractor is deploying site clearing and topsoil remove. After inspection tour in

December, the Consultant has found that there is not many rubbish in site, except at station


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Km 92+200. The Contractor is reminded to clean site follow Environmental control plan was

approved by the Consultant.

However, waste soil from site clearing and topsoil remove was piled up much in site. The

Contractor is planning to transport all unsuitable material out of construction area when

disposal area legal document complete.

February

There is not much rubbish in site. Almost, there is unsuitable material from site clearing or

topsoil. But the Contractor is transporting it to the approval disposal areas.

March

There is no rubbish in site. The worker cleaned all domestic waste out of site and worker’s

camp.

4.11.5 Package A5

February

In this period, cleanliness on site was still ensured. The main waste in this period is unsuitable

soil transported to disposal areas or disposed on the site. The Consultant has frequently

advised the Contractor to implement measures to ensure the environment on the site and

within the project area.

March

In this period, cleanliness on site was still ensured. The main waste in this period is unsuitable

soil transported to disposal areas or disposed on the site.

However, at stations Km118+930, the intersection area with provincial road, there was much

soil dropped on the road during material transportation. The Consultant has required the

Contractor to deal with this in letter No. GET3-KEANGNAM-11-A5-002 on 2th March 2011.

In weekly site inspections, the Consultant has frequently advised the Contractor to implement

measures to ensure the environment on the site and within the project area.


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4.11.6 Package A6

January

Currently, the main waste on the site is unsuitable soil. In some areas such as: Km162+900

(Ngoi Giam bridge); Km159+200 (Ngoi Cong bridge); Km175+020; Km186+140; Km187+500;

Km188+800 (Suoi Nau bridge); Km171+900; Km175+020 unsuitable soil was disposed in

areas which had not been accepted by the Consultant. The Consultant has requested the

Contractor to deal with this promptly.

In addition, the worker’s consciousness in many areas isn’t good and the Contractor has not

controlled the environment actively. Thus, it has arisen some problems such as: the empty oil

tanks were dropped on the ground without collected as at station Km185+200 (Ngoi Don

bridge). However, these arisen problems are local, temporary. The Consultant has requested

the Contractor to propagandise to improve awareness of environmental protection for workers

and transport waste and excessive material out of the site when the work is progressing.

February

In this period, cleanliness on site is still ensured. The main waste in this period is unsuitable

soil transported to disposal areas or disposed on the site. The Consultant has frequently

advised the Contractor to implement measures to ensure the environment on the site and

within the project area.

However, due to bad awareness of workers and bad environment management, concrete was

spilled on the ground at station Ngoi Hut bridge (Km 165+100). The Consultant has frequently

reminded the Contractor on this issue in weekly site inspections.

March

In this period, cleanliness on site is still ensured. The main waste in this period is unsuitable

soil transported to disposal areas or disposed on the site.

In weekly site inspections, the Consultant has frequently reminded the Contractor to clean the

site and implement measures to ensure the environment on the site and in the project area.

4.11.7 Package A7

January


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January 14th, 2011 at the location of Tan An Bridge Construction, Consultant found that

household waste on site. Consultant have warned and requested the Contractor to

immediately overcome the above problems. At the same time reminding the contractor

installing bins for refuse collection workers camps and field sanitation during construction.

Also in the 01 month in 2011 without consulting, detect garbage and other waste at the

positions of other candidates of the Contractor.

February

At the position of Khe Sang, Khe U and Khe Dai bridges, due to start constructing after Lunar

New Year therefore this construction site are so neat and relatively clean.

March

At the cast site No. 1 of culvert at km194+670, a number of cement packaging and rubbish are

discharge indiscriminately on the construction site and near the worker's camps. The

Consultant has asked the Subcontractor to immediately collect and transport them to the

prescribed treatment place.

4.11.8 Package A8

January

At the construction site of IC18 Bridge Km244+570, waste bentonite and water spills into the

street causing muddy and difficult for traffic participants. But after being reminded and issued

letter by Consultant on dated January 5th, 2011, the Contractor has to shield the sandbag wall

to prevent waste bentonite and minimize waste water overflowing in the streets.

February

On February 24th, 2011 at the construction of Ngoi Bo Bridge, while the process boredplies

construction, rock and bentonite spill over and were not transported to the approved wasteland

areas. Consultant required the Subcontractor to transport this rock and bentonite to the landfill

was approved on March 3rd, 2011.

At the construction of Suoi Trat, Suoi Nhu, IC 18 bridges, the roadworks are relatively neat and

clean at the acceptable level.


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March

Current at the construction sites of Suoi Trat bridge, Ngoi Bo bridge, IC 18 are neatly arranged

and cleaned the space clearly.

The Consultant has not detected any violations of the Contractor on the issue of waste and

hygiene of the construction site.

4.12 BIODIVERSITY PRESERVATION

4.12.1 Package A1

January

Construction activities are seen not to cause negative impacts on the fauna and flora system.

However, the PSC always recommended the Contractor to control the construction activities to

prevent as well as avoid the negative impacts on ambient environmental and enhance the

sense of workers in environmental protection and biodiversity preservation.

February

With site inspections during the month we didn’t detect any adverse impact on biodiversity

preservation from the construction activities of project. There were only some small leaks of oil

however these problems didn’t threaten biodiversity surrounding because the leaked oil is too

small and didn’t leak offsite.

March

There was no serious adverse impact on biodiversity preservation from the construction

activities of project detected during site inspections. At Trung Kien bridge and Bon bridge

construction sites the mud and bentonite were leaked offsite as mentioned above, however

these problems were not considered as a serious threaten on biodiversity preservation due to

they happened in small areas and has been solved timely. Besides, the PSC also requested

the Contractor to manage the site and construction activities tightly to avoid these problems in

the future.

4.12.2 Package A2

January


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Construction activities are seen not to cause negative impacts on the fauna and flora system.

However, the PSC always recommended the Contractor to control the construction activities to

prevent as well as avoid the negative impacts on ambient environmental and enhance the

sense of workers in environmental protection and biodiversity preservation.

February

The blocking water flow of channel at Song Dao bridge construction site probably affects the

agricultural biodiversity at this section because this problem also blocks the movement of

aquatic creature here. The PSC has requested the Contractor to remove the unsuitable pipe

culvert and reinstall new temporary stream crossing with appropriate pipe culverts to make

sure the water flow as well as movement of aquatic creature here.

March

During the site inspection on March 16th, 2011, we perceived that the Contractor had

demobilized the temporary stream crossing with unsuitable pipe culvert and restored the water

flow at Song Dao bridge construction site, so the water flow and the movement of aquatic

creature here are no longer blocked.

4.12.3 Package A3

January

Areas surrounding construction sites are almost paddy fields, gardens and plantations.

Construction activities are considered as factors not to cause negative impacts on the flora

system except for the dust coverage onto leaves that would affect harmfully photosynthesis

process and this would lead to reduction in biomass and oxygen production. No animals were

died by machinery or vehicle operation. Until now, we have no report about plants out of the

site limits which was unnecessary to be cut.

February




process and this would lead to reduction in biomass and oxygen production. No significant

animals were died by machinery or vehicle operations, as far as Consultant knows and based


145 | P a g e

on the available information. Until now, we have no report about plants, specially trees, out of

the site limits which were unnecessary cut.

March






on the available information. Until now, we have no report about plants, special trees, out of


4.12.4 Package A4

January

Along package A4, where the expressway of project across from station Km92+900 to

Km93+850 has forest. Construction activities are considered as factors not to cause negative

impacts on the flora system except for the dust coverage onto leaves that would affect

harmfully photosynthesis process and this would lead to reduction in biomass and oxygen

production. No animals were died by machinery or vehicle operation. Until now, we have no

report about plants or animal out of the site limits which was unnecessary to be damaged.

February








March




146 | P a g e






4.12.5 Package A5

February

According to the assessment of the diversity’s level of flora and fauna along package A5 route

(The assessment report of environment’s impact in Noi bai – Lao cai highway project) there

isn’t any kind of conservational creatures that is affected. At present, the construction activities

in this period haven’t affected negatively the flora and fauna.

In site inspections, the Consultant has always reminded the Contractor on biodiversity

protection and preservation and in coming months, the Consultant will continue to pay

attention to biodiversity of the package A5.

March

According to the assessment of the diversity’s level of flora and fauna along package A5 route

(The report of Environment Impact Assessment in Noi Bai – Lao Cai highway project) there

isn’t any kind of conservational creatures that is affected. At present, the construction activities

in this period haven’t affected negatively the flora and fauna.

In site inspections, the Consultant has always reminded the Contractor on biodiversity

protection and preservation and in coming months, the Consultant will continue to pay

attention to biodiversity of Package A5.

4.12.6 Package A6

January

Package A6 is a project which has direction along Red river and one site of package A6 is hilly

terrain with an average height over 120m. Clearing a large area of forest land, garden land and

agricultural land will affect the life of fauna and flora in project area. However, according to the

assessment of the diversity’s level of flora and fauna along package A6 route (The assessment


147 | P a g e

report of environment’s impact in Noi bai – Lao cai highway project) there isn’t any kind of

conservational creatures that is affected. The species that are affected, are common local

species, the flora are mainly agricultural crops and forestal trees used for purpose of

exploitation such as: cinnamon, eucalyptus, (mangium) acacia, bamboo, neohouzeaua…

The construction activities in this period haven’t affected negatively the flora and fauna.

However, the Consultant has always recommended the Contractor to control the construction

activities in order to prevent and avoid bad effects on the environment.

February


However, because of bad environment management of the Contractor, at some stations such

as Km186+740, many trucks weren’t equipped with canvas that created dust affecting the

flora, for example: reducing photosynthesis ability of plants. However, this is only temporary,

the Consultant has required the Contractor to water the transportation routes, equip canvas for

trucks and clean transportation roads.

In coming months, the Consultant will continue to pay attention to biodiversity preservation of

package A6.

March


However, because of bad environment management of the Contractor, on some hot days in

this month, at some stations such as Km174+340, Km165+340,…, dust was created during

transportation, affecting the flora, for example: reducing photosynthesis ability of plants.

However, this is only locally, the Consultant has required the Contractor to water the

transportation routes, equip canvas for trucks and clean transportation roads to ensure the

environment of the project.

In coming months, the Consultant will continue to pay attention to biodiversity preservation of

Package A6.

4.12.7 Package A7

January


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Until the present time the construction activities of the Contractor does not cause adverse

impacts to plant and animal populations around the region. There are no animals were injured

or killed by the construction activities of the Contractor caused.

At Km198+400; Km202+200 are the positions of provincial roads were cut off by the

construction of the Contractor. The contractor is required to measures to slow vehicles as they

pass through these areas to prevent accidents caused to animals crossing the street.

In addition, Consultant also reminded the main Contractor and Sub contractors always pay

attention on barrier, shielding the cross-sectional area of construction site near the provincial

road or provincial road to avoid accidents happen to the creatures (buffalo, cows, dogs,

horses) when crossing the street.

February

Until the present time the construction activities of the contractor have not caused adverse


or killed by the construction activities of the Contractor.

However, th Consultant also reminded the main Contractor and Sub contractors are always

paying attention barrier, shielding the cross-sectional area of construction near the provincial



March



or killed by the construction activities of the contractor.

However, the Consultant also reminded the main Contractor and Subcontractors are always





149 | P a g e

4.12.8 Package A8

January

Until the present time the construction activities of the Contractor have not caused adverse



However, Consultant also reminded the principal Contractor and Sub contractors are always




February

Until the present time the construction activities of the Contractor have not caused adverse



However, the Consultant also reminded the main Contractor and Sub contractors are always




March




However, the Consultant also reminded the main Contractor and Subcontractors are always





150 | P a g e

5. REFERENCE DOCUMENTS RELATIVE TO ENVIRONMENT

The documents and letters sent and received to or from the Client and Contractors, have been

included in the Monthly Reports corresponding with the period of this Quarterly Report, so they

can be checked in those reports. In this chapter it’s only included a list of all of them.

5.1 PACKAGE A1

No Document reference Date Remark

1

GET1/POS/A1/750 Jan 17th, 2011

Report on Environmental Monitoring

and Observation Service – Dec, 2010

2

GET1/POS/A1/760 Jan 21st, 2011

Request to apply the environmental

protection measures

3 GET1/POS/A1/785 Feb 14th, 2011 Request to apply the EPMs

4 GET1/POS/A1/788 Feb 15th, 2011 Temporary Road Plan

5 REF-A1-GET1-MOM-38

Feb 24th, 2011 Minutes of Weekly Meeting (has not

been returned from EPMU)

6 GET1/POS/A1/802 Mar 02nd, 2011

Request to apply the Environmental

Protection Measures

7 GET1/POS/A1/803 Mar 04th, 2011 Environmental Protection Measures

8 GET1/POS/A1/820 Mar 18th, 2011 Request to implement the

Environmental Protection Measures

9 REF-A1-GET1-MOM-

38 Mar 17th, 2011 Minutes of Weekly Meeting

10

Site minutes between

EPMU, PSC

GETINSA and

Contractor POSCO

Mar 24th, 2011

Request to check and ensure

irrigation/drainage/temporary pipe

culverts/sanitary condition for workers

5.2 PACKAGE A2


1 GET1/POS/A2/497 Jan 17th, 2011 Request to apply the environmental

protection measures


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2 GET1/POS/A2/500 Jan 17th, 2011 Report on Environmental Monitoring and

Observation

3 REF–A2–GET1–MOM-

26 Feb 24th, 2011

Minutes of Weekly Meeting (has not

been returned from EMPU)

4 Site Minutes Feb 18th, 2011

Site minutes between PSC, EPMU and

Contractor POSCO (has not been

returned from EPMU)

5 REF–A2–GET1–MOM-

27 Mar 17th, 2011

Minutes of Weekly Meeting (has not

been returned from EMPU)

6 GET1/POS/A2/592 Mar 04th, 2011 Request to apply the irrigational works

protection measures

5.3 PACKAGE A3


1 GET2-EPMU2-A3-139 Jan 26th, 2011 Approval of Plan of using and maintaining

the existing road for construction work

2 GET2-POS-A3-403 Jan 14th, 2011 Approval of first aid support on site from

hospital

3 Site minutes Jan 19th, 2011 Plan of using and maintaining the existing

road for construction work

4 GET2-POS-A3-432 Feb 12th 2011 Request to submit Environment monitoring

report of December 2010

5

GET2-POS-A3-451 Feb 25th 2011 Request to supplement the document of

disposal areas of section 2 and 4 Package

A3.

6 GET2-POS-A3-456 Feb 25th 2011 Approval of disposal area for section 3-

Package A3.

7 Site minutes Feb 24th 2011 Violation of Environment and safety at Red

river bridge construction.

8 GET2-POS-A3-484 Mar 14th 2011 Approval of environmental monitoring report

in December 2011 for Package A3.

9 GET2-POS-A3-487 Mar 16th 2011 Transportation of unsuitable material by the

Contractor, A3


152 | P a g e

10 GET2-POS-A3-492 Mar 22nd 2011 Approval for disposal area of section 4 - A3

11 Site minutes Mar 3rd 2011 Safety and Environment violation in section

6, Package A3.

5.4 PACKAGE A4


1 GET2-KEA-A4-123 Jan 12th, 2011 Request on weekly environmental inspection

and environmental monitoring.

2 GET2-KEA-A4-117 Jan 3rd, 2011 Request to install signpost on site

3 GET2-KEA-A4-149 Feb 12th, 2011 Request to monitor Environment quality for

package A4.

4 GET2-KEA-A4-152 Feb 15th, 2011 Approval of Plan of using and maintaining

existing roads for construction package A4.

5 GET2-KEA-A4-162 Feb 21st, 2011 Approval of disposal areas of Cam Khe

district (section 1,2) package A4.

6 Site minutes Feb 18th, 2011 Inspect existing road package A4 (sec

1,2,3,4)

7 Site minutes Feb 22th, 2011 Inspect environment quality monitoring

Package A4

8 Site minutes Feb 15th, 2011 Checking disposal area in Cam Khe district

9 Site minutes Feb 16th, 2011 Inspect existing road package A4 (sec 5. 6)

10 GET2-KEA-A4-196 Mar 22nd, 2011 Request to additional legal document for

disposal areas of Ha Hoa district- package

A4 (second time)

11 GET2-KEA-A4-198 Mar 29th, 2011 Approval of addendum to proposal for

disposal area of Ha Hoa district- package A4.

12 GET2-KEA-A4-201 Mar 30th, 2011 Meeting invitation about Environment and

Safety of Package A4.


153 | P a g e

5.5 PACKAGE A5


1 GET3-KEA-A5-109 16th Feb 2011 Approval of disposal areas

2 GET3-KEA-A5-110 16th Feb 2011

Reminding Contractor on Environmental and

safety at station Km119+000 – Km119+700

3 GET3-KEA-A5-114 18th Feb 2011

Approval of disposal areas for unsuitable

materials

4 GET3-KEA-A5-109 16th Feb 2011 Approval of disposal areas

5 GET3-KEA-11-A5-002 3rd Mar 2011


safety issues

6 GET3-KEA-11-A5-003 3rd Mar 2011

Request for monitoring environmental

indicators – Package A5

7 GET3-KEA-11-A5-007 8th Mar 2011

Notice on approve the disposal areas for

unsuitable material – Package A5

8 GET3-KEA-11-A5-011 8th Mar 2011

Comments on Environmental Monitoring

Plan – Package A5

9 GET3-KEA-11-A5-023 17th Mar 2011


safety issues

10 GET3-KEA-11-A5-032 23rd Mar 2011

Notice on documental of disposal areas for

unsuitable material

5.6 PACKAGE A6


1 GET3/DOOSAN/A6/394 30th Dec

2010

Reminding Contractor on

environmental issues

2 GET3/DOOSAN/A6/399 03rd Jan 2011Non – approval of disposal areas for

unsuitable material

3 GET3/DOOSAN/A6/412 07th Jan 2011Reminding Contractor on

Environmental and traffic issue

4 GET3/DOOSAN/A6/420 12th Jan 2011Reminding Contractor on First Aid

Base establishment – Package A6


154 | P a g e


5 GET3-DOOSAN-A6-427 14th Jan 2011Request for checking disposal areas

for unsuitable materials

6 GET3-DOOSAN-A6-435 18th Jan 2011Reminding Contractor on

Environmental and safety issues

7 GET3-DOOSAN-A6-458 22nd Jan 2011Reminding Contractor on

Environmental and safety issues

8 GET3-DOOSAN-A6-460 24th Jan 2011Approval of disposal areas for

unsuitable material

9 GET3-DOOSAN-A6-461 24th Jan 2011Comments on Re-submission of

Disposal Area at Tunnel South Portal

10 GET3-DOOSAN-A6-469 25th Jan 2011Reminding Contractor on number

plates of the cars

11 GET3-DOOSAN-A6-471 25th Jan 2011

Request for remove all unsuitable soil

at station Km175+020 to the disposal

area approved by Engineer

12 GET3-DOOSAN-A6-472 25th Jan 2011

Reminding Contractor on ensure

environmental and safety on Lunar

New Year holiday

13 GET3/DOOSAN/A6/500 17th Feb 2011Approval of disposal area at Tunnel

South Portal Km186+140

14 GET3/DOOSAN/A6/518 23rd Feb 2011Reminding Contractor on

Environmental and Safety issue

15 GET3-DOOSAN-A6-519 23rd Feb 2011Request for monitoring environmental

indicators – Package A6

16 GET3-DOOSAN-11-A6-010 7th Mar 2011 Notice on approve the disposal areas

for unsuitable material – package A6

17 GET3-DOOSAN-11-A6-024 10th Mar 2011 Reply to your letter, ref DHIC-11-PT-

040

18 GET3-DOOSAN-11-A6-033 12th Mar 2011 Request Contractor to ensure the living

conditions of workers

19 GET3-DOOSAN-11-A6-032 12th Mar 2011 Notice on Environmental and Safety

Meeting


155 | P a g e


20 GET3-DOOSAN-11-A6-050 21st Mar 2011 Comments on Environmental

Monitoring Plan – Package A6

21 GET3-DOOSAN-11-A6-054 22nd Mar 2011 Reply to your letter, ref DHIC-11-PT-

050

22 GET3-DOOSAN-11-A6-065 25th Mar 2011

Request Contractor to submit CV of

Safety Manager and Environmental

Manager

5.7 PACKAGE A7


1

GET4- GRBCC-295 Jan 12th, 2011

Slowly Submit the Report on the

Environment Monitoring Result – Stage 1-

December, 2010

2

GET4- GRBCC-297 Jan 18th, 2011

Delay in Completing the Procedure to Ask

the Confirmation of Social Committee at

District Level related to Using the Waste Pit

3 GRBCC-GET- A7-556 Jan 17th, 2011 Submitting Environmental monitoring report

on Construction stage (first time)

4

GET4- GRBCC-298 Jan 19th, 2011 Approve the Environment Monitoring Report

at Construction Stage (phase 1- December

2010) - Package A7

5 GET4-GRBCC-326 Mar 4th, 2011 Delay in complete the legal related to using

unsuitable material waste pits

6 GET4-EPMU4-304 Mar 4th, 2011 Officially Approved position of

Environmental Engineer - Package A7

7 GET4- GRBCC- 334 Mar 23rd, 2011 Require to overcome Environmental and

Safety problems of Package A7


156 | P a g e

5.8 PACKAGE A8


1 GET4 – VINACONEX - 224 Dec 28th, 2010 Require to overcome the Environment

and safety problem of Package A8

2 GET4 – EPMU4-223 Jan 10th, 2011 Propose to Approve the Environment

and Safety Specialist - Package A8.

3

GET4 – VINACONEX - 239 Jan 19th, 2011 Require You to Overcome the

Environment and Safety Issue –

Package A8

4

A8/LC/110120-18 Jan 20th, 2011 Submit the curriculum of Mai Xuan Lap -

key personnel for position of Safety

officer

5

GET4 – VINACONEX - 244 Jan 25th, 2011 Not Approve the CV of Mr. Mai Xuan

Lap – Proposed for Safety Specialist

Position.

6 GET4-VINACONEX-264 Feb 24th, 2011 Require to overcome Environmental

and Safety problems of Package A8

7 GET4- EPMU4- A8-317 Mar 18th, 2011 Propose to approved Safety engineer of

Package A8

8 GET4- VINACONEX- 270 Mar 18th, 2011 Approved the Report environmental

monitoring on construction stage (phase

2- February 2011) – Package A8.

9 GET4- VINACONEX- 273 Mar 23rd, 2011 Require to overcome Environmental

problems of Package A8


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ANNEX 1: PHOTOGRAPHIC REPORT


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PACKAGE A1

Landslide risk (TL402 bridge)

Temporary Stream Crossing

(Xuan Phuong bridge)

Concrete waste was discharged on site.

15/02/2011 (TL402 bridge)

Mud after recycling bentonite spilled offsite.

15/02/2011 (Trung Kien bridge)

Riverside is eroded. 01/03/2011 (Xuan Phuong bridge)

Wastewater is discharged directly into river. 02/03/2011 (Xuan Phuong bridge)


159 | P a g e

PACKAGE A2

Channel is blocked by erosion

(Tan Dung bridge)

Drilling mud spilled into river

(Ben Gao bridge)

Worker’s camp is kept in sanitary condition. 18/02/2011 (Lo river bridge)

Mud after recycling bentonite spilled offsite. 16/02/2011 (Lo river bridge)

High level of dust in the air. 23/03/2011 (TL305 bridge)

Mud was discharged into river. 16/03/2011 (Pier 4 – Lo river bridge)


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PACKAGE A3

Unsuitable material is pile up in site many

days (Km74+500)

Oil is leaked out ground (Km54+600)

Dump truck is not covered (km71) (dated: 11th February, 2011)

Bridge construction site is not cleaned

(Km54+600) (dated: 18th February, 2011)

unsuitable material is not moved out site to disposal areas. Km54+640 (dated: 24th

March, 2011)

Access road is muddy. It need to clean Km77+800 (Dated 17th March, 2011)


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PACKAGE A4

Existing road at Km 81. It isn't cleaned and

watered appropriately.

Existing road at Km 92+200. It isn't cleaned

and watered appropriately.

Dump truck is not covered (Km 89+800) Oil drums is stored without safety method (Km 92+200)

Earth is fallen to drainage canal (Km108+965)

(dated: 23rd March, 2011)

Mud take one-third of Ngoi Gianh stream bed

(Km 88+700) (dated: 23rd March, 2011)


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PACKAGE A5

The water flow is blocked by unsuitable soil at Km119+400. 14/2/2011.

The water flow is blocked by unsuitable soil at Km119+400. 14/2/2011.

There is much soil falls down on province road at Km118+930. 2/3/2011.

The construction location near the lake at Km121+600. 17/3/2011.

Erosion of access road at Km122+030 17/3/2011.

Monthly Safety and Environment Meeting of Package A5. 31/3/2011.


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PACKAGE A6

Soil spilled into and blocked the channel, Km159+200 (Ngoi Cong bridge). 30/3/2010.

Unsuitable soil was poured near by the Red river. Km187+500. 15/1/2011.

Unsuitable soil disposed at unapproved area. Km171+900. 25/1/2011.

The truck without back cover. 15/2/2011.

The unsuitable soil was stored on the site at Km153+300. 24/3/2011.

The Contractor installed drainage pile at

Km186+730. 11/3/2011.


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PACKAGE A7

The diposal place has been planted grass at Km195+800. 7/1/2011

Rocks and soil fell into the river at Km204+581 14/1/2011.

Rubbish and soil fall into the stream at Km191+353. 25/2/2011.

Rubbish and soil fall into the stream at

Km204+581. 25/2/2011.

Muddy road is very difficult for people to travel at Km194+200. 22/3/2011.

The flow is blocked during construction Km209 +329. 11/3/2011


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PACKAGE A8

Bentonite flew in to the river. Suoi Trat Bridge. 28/12/2011

The revoking hole of bentonite at Suoi Trat

Bridge. 5/1/2011

Unsuitable soil is not transported to

disposal area. 24/2/2011

Bentonite flew into the stream at Km231+890

21/2/2011

Waste land is provisionally collected at the execution place at Km238+265. 8/3/2011.

Waste land is provisionally collected at the execution place at Km244+570. 8/3/2011.


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environmental monitoring reportthat means, january, february and march 2011. so, this document is...

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