EIA: Thailand: Nong Saeng Natual Gas Power Project

Final Environmental Impact Assessment Project Number: 44946 July 2011

THA: NONG SAENG NATURAL GAS POWER PROJECT Prepared by Power Generation Supply Co., Ltd. for the Asian Development Bank.

The environmental impact assessment is a document of the borrower. The views expressed herein do not necessarily represent those of ADB’s Board of Directors, Management, or staff. Your attention is directed to the “Terms of Use” Section of this website.

208102_cover-ADB.doc

Environmental Report for submittal to ADB Nong-Saeng Power Plant Project

Final Report Nong-Saeng District, Saraburi Province and Pachee

District, Phra Nakhon Si Ayutthaya Province

Power Generation Supply Co., Ltd.

May 2011

T-EIA208102/SECOT (1) Table of Content.doc

Environmental Report for submittal to ADB

Nong-Saeng Power Plant Project


CONTENTS

Page

Chapter 1 Executive Summary ___________________________________________ 1-1

1.1 Air Quality ___________________________________________________ 1-2

1.2 Noise Level __________________________________________________ 1-3

1.3 Surface Water Hydrology and Surface Water Quality __________________ 1-4

1.4 Forestry and Wildlife Ecology ____________________________________ 1-6

1.5 Aquatic Ecology and Fishery _____________________________________ 1-7

1.6 Land Use ____________________________________________________ 1-7

1.7 Water Usage __________________________________________________ 1-8

1.8 Transportation ________________________________________________ 1-9

1.9 Drainage and Flood Control ______________________________________ 1-9

1.10 Solid Wastes _________________________________________________ 1-10

1.11 Occupational Health and Safety __________________________________ 1-11

1.12 Socio-economics _____________________________________________ 1-11

1.13 Public Relations and Public Participation __________________________ 1-12

Chapter 2 Policy, Legal and Administrative Framework _____________________ 2-1

2.1 Policy, Legal, and Administrative Framework _______________________ 2-1

2.2 Scope of the EIA Study _________________________________________ 2-2

2.3 Methodology _________________________________________________ 2-3

2.4 ONEP EIA Review and Approval Process __________________________ 2-5


CONTENTS (Cont’d) Page

Chapter 3 Project Description____________________________________________ 3-1

3.1 Project Background ____________________________________________ 3-1

3.2 Project Size and Location _______________________________________ 3-1

3.3 Project Implementation Plan ____________________________________ 3-10

3.4 Generating Capacity ___________________________________________ 3-12

3.5 Machinery, Equipment and Electricity Generating Process ____________ 3-12

3.6 Fuel Utilization ______________________________________________ 3-26

3.6.1 Natural Gas _____________________________________________ 3-26

3.6.2 Diesel Oil ______________________________________________ 3-30

3.7 Chemicals ___________________________________________________ 3-33

3.8 Electricity Transmission Line System _____________________________ 3-36

3.9 Water Usage System __________________________________________ 3-36

3.9.1 Raw Water Source _______________________________________ 3-36

3.9.2 Water Treatment System __________________________________ 3-47

3.9.3 Water Consumption ______________________________________ 3-48

3.10 Drainage System _____________________________________________ 3-52

3.10.1 Drainage System for Wastewater from Office Building __________ 3-52

and Storm Water

3.10.2 Drainage System for Process Wastewater ____________________ 3-53

3.11 Number of Employees _________________________________________ 3-53

3.12 Pollutants and Control System ___________________________________ 3-54

3.12.1 Sources and Air Emission Rates _____________________________ 3-54

3.12.2 Noise Control ______________________________________ 2-58



3.12.3 Sources of Wastewater, Wastewater Treatment System __________ 3-58

and Control

3.12.3.1 Construction Phase __________________________________ 3-58

3.12.3.2 Operation Phase ____________________________________ 3-58

3.12.4 Solid Wastes Management _________________________________ 3-62

3.12.4.1 Construction Phase __________________________________ 3-62

3.12.4.2 Operation Phase ____________________________________ 3-62

3.13 Green Area __________________________________________________ 3-65

Chapter 4 Description of the Environment (Baseline Data) __________________ 4.1-1

4.1 Physical Resources ___________________________________________ 4.1-1

4.1.1 Topography _____________________________________________ 4.1-1

4.1.2 Meteorology and Air Quality _______________________________ 4.1-3

4.1.2.1 Meteorology _______________________________________ 4.1-3

4.1.2-2 Ambient Air Quality __________________________________ 4.1-7

4.1.3 Noise Level ____________________________________________ 4.1-26

4.1.4 Geology/Earthquake _____________________________________ 4.1-28

4.1.4.1 Geological Condition _______________________________ 4.1-28

4.1.4.2 Earthquake Occurrence ______________________________ 4.1-32

4.1.4.3 Soil Resource _____________________________________ 4.1-32

4.1.5 Surface Water Hydrology and Surface Water Quality ___________ 4.1-38

4.1.5.1 Surface Water Resources around the Project Site __________ 4.1-38



4.1.5.2 Hydrology Study Results of the Project-Related __________ 4.1-40

Water Resources

4.1.5.3 Surface Water Quality _______________________________ 4.1-54

4.2 Biological Resources __________________________________________ 4.2-1

4.2.1 Forestry ________________________________________________ 4.2-1

4.2.1.1 Overall Forest Area of the Province _____________________ 4.2-1

4.2.1.2 Forest Condition around the Project Area _________________ 4.2-1

4.2.2 Wildlife ________________________________________________ 4.2-3

4.2.3 Aquatic Ecology _____________________________________ 4.2-23

4.3 Human Use Values ____________________________________________ 4.3-1

4.3.1 Land Use _______________________________________________ 4.3-1

4.3.2 Utilization of Surface Water Resources ______________________ 4.3-14

4.3.2.1 Utilization of Water from Klong Huaiba ________________ 4.3-15

(Klong Nong-Ngu-Loem)

4.3.2.2 Utilization of Water from the Pa-Sak River ______________ 4.3-16

4.3.3 Transportation __________________________________________ 4.3-35

4.3.3.1 Land Transportation ________________________________ 4.3-35

4.3.4 Agriculture ____________________________________________ 4.3-43

4.3.4.1 Agricultural Aspect _________________________________ 4.3-43

4.3.4.2 Livestock _________________________________________ 4.3-45

4.3.4.3 Fishery ___________________________________________ 4.3-46

4.3.5 Industry _______________________________________________ 4.3-47



4.3.6 Infrastructure and Utility _________________________________ 4.3-50

4.3.6.1 Water Usage ______________________________________ 4.3-50

4.3.6.2 Electricity Usage ___________________________________ 4.3-50

4.3.6.3 Solid Waste Disposal _______________________________ 4.3-55

4.3.6.4 Drainage and Flood Protection ________________________ 4.3-55

4.3.6.5 Disaster Prevention _________________________________ 4.3-64

4.4 Quality of Life Values _______________________________________ 4.4.1-1

4.4.1 Socio-economic _______________________________________ 4.4.1-1

4.4.1.1 Introduction ______________________________________ 4.4.1-1

4.4.1.2 Methodology _____________________________________ 4.4.1-1

4.4.1.3 Study Results ____________________________________ 4.4.1-11

4.4.1.4 Conclusion of socio-economic study _________________ 4.4.1-39

4.4.2 Public Health _________________________________________ 4.4.2-1

4.4.2.1 Public Health Service and Staff ______________________ 4.4.2-1

4.4.2-2 Public Health Problem ____________________________ 4.4.2-16

4.4.3 Historical Sites and Objects _____________________________ 4.4.2-39

4.4.4 Aesthetics, Scenery and Tourism _________________________ 4.4.2-40

Chapter 5 Anticipated Environmental Impact and Mitigation Measures ________ 5-1

5.1 Physical Resources ____________________________________________ 5.1-1

5.1.1 Air Quality _____________________________________________ 5.1-1

5.1.1.1 Construction Phase __________________________________ 5.1-1

5.1.1.2 Operation Phase ____________________________________ 5.1-2



5.1.2 Noise Level ____________________________________________ 5.1-61

5.1.2.1 Construction Phase _________________________________ 5.1-61

5.1.2.2 Operation Phase ___________________________________ 5.1-68

5.1.3 Surface Water Hydrology _________________________________ 5.1-77


5.1.3.2 Operation Phase ___________________________________ 5.1-78

5.1.4 Surface Water Quality ___________________________________ 5.1-84


5.1.4.2 Operation Phase ___________________________________ 5.1-86

5.2 Biological Resources __________________________________________ 5.2-1

5.2.1 Forestry ________________________________________________ 5.2-1


5.2.1.2 Operation Phase ____________________________________ 5.2-1

5.2.2 Wildlife ________________________________________________ 5.2-1


5.2.2.2 Operation Phase ____________________________________ 5.2-3

5.2.3 Aquatic Ecology and Fishery _______________________________ 5.2-4


5.2.3.2 Operation Phase ____________________________________ 5.2-5

5.3 Human Use Values ____________________________________________ 5.3-1

5.3.1 Land Use _______________________________________________ 5.3-1

5.3.2 Transportation ___________________________________________ 5.3-5

5.3.3 Water Usage ___________________________________________ 5.3-23




5.3.3.2 Operation Phase ___________________________________ 5.3-23

5.3.4 Electricity Usage ________________________________________ 5.3-26


5.3.4.2 Operation Phase ___________________________________ 5.3-26

5.3.5 Solid Wastes Management __________________________________ 5.3-27


5.3.5.2 Operation Phase _____________________________________ 5.3-28

5.3.6 Drainage and Flood Control _________________________________ 5.3-30


5.3.6.2 Operation Phase _____________________________________ 5.3-32

5.4 Quality of Life Value ____________________________________________ 5.4-1

5.4.1 Socio-Economic ___________________________________________ 5.4-1

5.4.1.1 Construction Phase ___________________________________ 5.4-1

5.4.1.2 Operation Phase ____________________________________ 5.4-5

5.4.2 Public Health _____________________________________________ 5.4-7

5.4.2.1 Impact of Air Pollutants on Health ______________________ 5.4-8

5.4.2.2 Assessment of Health Impacts from Project Operation _____ 5.4-13

5.4.3 Historic, Archaeological, Aesthetic and Tourism Resources ________ 5.4-15

5.4.4 Occupational Health and Safety ______________________________ 5.4-15

5.4.4.1 Noise Level _______________________________________ 5.4-15

5.4.4.2 Heat _____________________________________________ 5.4-16

5.4.4.3 Chemicals ________________________________________ 5.4-16



5.4.4.4 Fire Prevention System ______________________________ 5.4-17

5.4.5 Major Hazards Assessment _________________________________ 5.4-28

5.4.5.1 Approach of Major Hazards Assessment __________________ 5.4-28

5.4.5.2 Simulation Model ____________________________________ 5.4-29

5.4.5.3 Hazard Identification _________________________________ 5.4-30

5.4.5.4 Consequence Assessment ______________________________ 5.4-36

5.4.5.5 Summary of Major Hazard Assessment ___________________ 5.4-88

Chapter 6 Analysis of Alternatives ________________________________________ 6-1

Chapter 7 Information, Disclosure, Consultation and Participation ____________ 7-1

7.1 Introduction _____________________________________________________ 7-1

7.2 Objective _______________________________________________________ 7-2

7.3 Target Group and Implementation Area ________________________________ 7-2

7.4 Work Plan and Activities Performed __________________________________ 7-2

7.5 Results _________________________________________________________ 7-8

7.5.1 Media preparation/public relation media production _________________ 7-8

7.5.2 Communication for making understanding with offices/organization/ ___ 7-11

communities/people (First public hearing)

7.5.3 Presentation of the Study results and public hearing about ____________ 7-20

environmental measures (Second public hearing)

7.6 Conclusion of the Works on Public Relation and Public Participation _______ 7-51

7.6.1 Participation in news/information acknowledgement, understanding, ___ 7-51

and suggestion for the project

7.6.2 Participation of people and relevant persons ______________________ 7-52



7.6.3 Summary of questioning issues obtained from _____________________ 7-53

the public hearing activity

7.6.4 Implementation in accordance with the regulation __________________ 7-53

of the Office of Prime Minister

7.6.5 Suggestion for further work ___________________________________ 7-53

Chapter 8 Grievance Redress Mechanism __________________________________ 8-1

Chapter 9 Environmental Management Plan _______________________________ 9-1

Chapter 10 Conclusion and Recommendation _____________________________ 10-1

10.1 Air Quality _____________________________________________________ 10-2

10.2 Noise Level_____________________________________________________ 10-4

10.3 Surface Water Hydrology and Surface Water Quality ____________________ 10-5

10.4 Forestry and Wildlife Ecology ______________________________________ 10-7

10.5 Aquatic Ecology and Fishery _______________________________________ 10-7

10.6 Land Use ______________________________________________________ 10-7

10.7 Water Usage ____________________________________________________ 10-8

10.8 Transportation __________________________________________________ 10-9

10.9 Drainage and Flood Control ________________________________________ 10-9

10.10 Solid Wastes ___________________________________________________ 10-10

10.11 Occupational Health and Safety ____________________________________ 10-11

10.12 Socio-economics _______________________________________________ 10-12

10.13 Public Relation and Public Participation _____________________________ 10-13

10.14 Recommendation _______________________________________________ 10-14


LIST OF TABLES Table Page

3.5-1 Preliminary Technical Details of Nong-Saeng Power Plant Project ______ 3-17

3.5-2 Operating Data at Various Generating Capacity of ___________________ 3-27



3.6-1 Specification of Diesel Oil Used as Backup Fuel ____________________ 3-31


3.7-1 Types and Consumption Rate of Chemicals for _____________________ 3-34


3.12-1 Stack Data and Air Emission Rates Incase of Natural Gas Firing ________ 3-55


Power Generation Supply Co,. Ltd.

3.12.2 Stack Data and Air Emission Rates Incase of Diesel Oil Firing _________ 3-56



3.12.3 Effluent Quality Standard of Nong-Saeng Power Plant Project _______ 3-60

3.12.4 Type, Quantity and Management of Solid Wastes ___________________ 3-64

Generated during Operation Phase

4.1.2-1 Climatological Data during the Period of 1976-2005 _________________ 4.1-4

4.1.2-2 Frequency of Occurrence of Wind Directions ______________________ 4.1-10

at Various Wind Speeds in the Year 2007

Don Muang Meteorological Station

4.1.2-3 Percentage of Atmospheric Stabillity Class in the Year 2007 __________ 4.1-12



LIST OF TABLES (Cont’d) Table Page

4.1.2-4 Monitoring Results of Ambient Air Quality _______________________ 4.1-15

by Pollution Control Department

Kao Noy Fire Fighting Station, during thy Year 2005-2008

4.1.2-5 24-hr Average Concentration of Total Suspended Particulates (TSP) ___ 4.1-20

in the Vicinity Area of Nong-Saeng Power Plant

during the Year 2007-2009

4.1.2-6 1-hr Average Concentration of Nitrogen Dioxide (NO2) _____________ 4.1-22


during January 9-14, 2007 and April 24-29, 2008

4.1.2-7 1-hr Average Concentration of Sulfur Dioxide (SO2) _______________ 4.1-24



4.1.2-8 24-hr Average Concentration of Sulfur Dioxide (SO2) ______________ 4.1-25



4.1.2-9 Measurement Results of Sound Pressure Level _____________________ 4.1-27

in the Vicinity Area of Nong Saeng Power Plant Project


4.1.5-1 Measured Values of Water Current, Temperature, Salinity ____________ 4.1-43

and Suspended Solids of Pa-Sak River at Station A

during August 11-12, 2008

4.1.5-2 Water Current Results in Klong Huaiba _________________________ 4.1-50

(Klong Klong Nong-Ngu-Loem) at the Level of 3.10 Meters

from Bank to Water Surface on August 11, B.E.2551 (at 09.00 a.m.)



4.1.5-3 Water Current Results in Klong Huaiba __________________________ 4.1-51


from Bank to Water Surface on August 11, B.E.2551 (at 11.30 a.m.)



from Bank to Water Surface on August 11, B.E.2551 (at 2.00 p.m.)



from Bank to Water Surface on August 11, B.E.2551 at 04.30 p.m.

4.1.5-6 Water Flow Rate and Water Depth Relation of Klong Huaiba _________ 4.1-55


4.1.5-7 Pa-Sak River Water Quality of the Office of Irrigation 10th -Lopburi. ___ 4.1-58

26 May B.E.2549

4.1.5-8 Water Quality in Pa-Sak River in Rama Six Dam from Examples ______ 4.1-59

24 April and 21 June B.E.2551

4.1.5-9 Water Quality in Klong Rapeepatana of the Office of Irrigation _______ 4.1-62

10th -Lopburi 26 May B.E.2549

4.1.5-10 Water Quality Analysis Result in Klong Rapeepatana _______________ 4.1-65

25 January B.E.2550

4.1.5-11 Water Quality Analysis Result in Klong Huaiba ____________________ 4.1-67

(Klong Nong-Ngu-Loem) 25 January B.E.2550



4.1.5-12 Water Quality in in Klong Huaiba (Klong Nong-Ngu-Loem) __________ 4.1-68

from Example 24 April and 25 June B.E.2551

4.1.5-13 Monitoring Results of Water Quality in Klong Huaiba ______________ 4.1-73

(Klong Nong-Ngu-Loem) in August B.E.2551

4.2.1-1 National Forest, National Park and National Forest Park in ____________ 4.2-2

Saraburi Province

4.2.2-1 Type, Status, Abundance and Impact of Amphibian in Study Area ______ 4.2-8

4.2.2-2 Type, Status, Abundance and Impact of Reptile in Study Area _________ 4.2-9

4.2.2-3 Type, Status, Abundance and Impact of Birds in Study Area __________ 4.2-11

4.2.2-4 Type, Status, Abundance and Impact of Mammals in Study Area ______ 4.2-18

4.2.3-1 Survey Results of Phytoplankton in Study Area ____________________ 4.2-24

during January 25-26, 2007

4.2.3-2 Survey Results of Zooplanktons in Study Area _____________________ 4.2-25

during January 25-26, 2007 and on February 15, 2008

4.2.3-3 Survey Results of Bentos in Study Area __________________________ 4.2-26

during January 25-26, 2007 and on February 15, 2008

4.2.3-4 Survey Results of Phytoplankton in Study Area ____________________ 4.2-29

on December 4, 2008

4.2.3-5 Survey Results of Zooplankton in Study Area ______________________ 4.2-31

on December 4, 2008

4.2.3-6 Survey Results of Bentos in Study Area __________________________ 4.2-32

on December 4, 2008

http://dict.longdo.com/search/amphibian

http://dict.longdo.com/search/reptile



4.3.1-1 Agricultural Area in Nong-Saeng District, Nong-Kae District, _________ 4.3-4

Saraburi Province and Pachee District, Phra Nakhon Si Ayutthaya Province

in the year 2007

4.3.1-2 Land Use in the Study Area of 5 km. Radius ________________________ 4.3-5

4.3.1-3 Land Use in the Study Area of 500 m Radius from Water Pipeline ______ 4.3-9


4.3.2-1 Water Conveyance and Maintenance Project Area __________________ 4.3-19

of Irrigation Department in Downstream of Water Pumping Area

of Nong-Saeng Power Plant Project

4.3.2-2 Monthly Quantity of River Water at Water Pumping Point____________ 4.3-22


4.3.2-3 Monthly Quantity of Water Released through Phra Narai Water Gate ___ 4.3-26

4.3.2-4 Monthly and Annually Average of Water Consumption of Plants ______ 4.3-32

Lopburi Meteorological Station

4.3.2-5 Water Usage Coefficient of Rice ________________________________ 4.3-32

4.3.2-6 Quantity of Water Requirement for Irrigation ______________________ 4.3-32

Based on 1,000 Rai of Rice Field and 3 Cultivating Cycles per Year

4.3.3-1 Daily Average Traffic Volume on Highway No.1 ___________________ 4.3-38

in Adjacent Project Area during the year 2005-2007

4.3.3-2 Daily Average Traffic Volume on Highway No.329 ________________ 4.3-40

in Adjacent Project Area during the year 2005-2007

4.3.3-3 Daily Traffic Volume on Highway No.3043 in Adjacent Project Area _ 3.3.3-41

during the year 2005-2007



4.3.3-4 Daily Average Traffic Volume on Road along the Bank _____________ 4.3-42

of Klong Rapeepatana (Right Side)

during July 31-August 1, 2007

4.3.3-5 Daily Traffic Volume on Road along the Bank of Klong Rapeepatana ___ 4.3-44

(Left Side) during July 31-August 1, 2007

4.3.5-1 List of Factories in the Study Area _______________________________ 4.3-51

4.4.1-1 Number of Households and Household Samples ___________________ 4.4.1-9

for Socio-economic Survey

4.4.1-2 Administration Area, Number of Sub-districts and Villages ________ 4.4.1-13

in Saraburi, Classified by District

4.4.1-3 Administration Area, Number of Sub-districts and Villages _________ 4.4.1-14

in Phra Nakhon Si Ayutthaya, Classified by District

4.4.1-4 Temples in the Study Area and Distances _______________________ 4.4.1-17

from the Nong-Saeng Power Plant Project

4.4.1-5 Schools in the Study Area, Classes and Distances _________________ 4.4.1-18

from the Nong-Saeng Power Plant Project

4.4.1-6 Summary of Socio-economic Status of Sub-districts_______________ 4.4.1-19

in the Study Area within the Radius of 5 km from

the Nongsaeng Power Plant Project

4.4.1-7 Number of Population, Households and Population Density_________ 4.4.1-24

in the Study Area

4.4.2-1 Public Health Service of Governmental and Private Sectors __________ 4.4.2-2

of Saraburi Province, in the year 2008



4.4.2-2 Medical and Public Health Personnel of Governmental _____________ 4.4.2-3

and Private Sectors of Saraburi Province, in the Year 2007


of Nong-Saeng District, in the Year 2008


and Private Sectors of Nong-Saeng District, in the Year 2007


of Nong-Kae District, in the Year 2008


and Private Sectors of Nong-Kae District, in the Year 2007


of Phra Nakhon Si Ayutthaya Province, in the Year 2007


and Private Sectors of Phra Nakhon Si Ayutthaya Province,

in the Year 2007


of Pachee District, in the Year 2007

4.4.2-10 Medical and Public Health Personnel of Governmental ____________ 4.4.2-10

and Private Sectors of Pachee District, in the year 2007

4.4.2-11 Medical and Public Health Personnel of Nong-Kob _______________ 4.4.2-10

Sub-district Health Center, Khok Sa-at Sub-district Health Center,

Nong-Kwai-So, Nong-Huapho Sub-district Health Center, Khok Toom

Sub-district Health Center and Phonthong Sub-district Health Center



4.4.2-12 Medical and Public Health Personnel of Nong-Saeng Hospital ______ 4.4.2-12

in the Year 2008

4.4.2-13 Medical and Public Health Personnel of Nong-Kae Hospital ________ 4.4.2-13

in the Year 2008

4.4.2-14 Medical and Public Health Personnel of Nong-Namsai ___________ 4.4.2-14

Sub-district Health Center, Khok Muang Sub-district Health Center,

Donyanang Sub-district Health Center and Rasom Sub-district Health Center

4.4.2-15 Medical and Public Health Personnel of Pachee Hospital ___________ 4.4.2-15

in the Year 2007

4.4.2-16 Number of Out-Patients in Saraburi Province Classified ___________ 4.4.2-17

by Causes (21 Disease) during the Year 2006-2008

4.4.2-17 Number of Out-Patients in Nong-Saeng District Classified _________ 4.4.2-18


4.4.2-18 Number of Out-Patients in Nong-Kae District Classified ___________ 4.4.2-19


4.4.2-19 Number of Out-Patients in Nong-Kae District Classified ___________ 4.4.2-21


4.4.2-20 Number of Out-Patients in Nong-Kae Classified__________________ 4.4.2-22


4.4.2-21 Incidence Rates of Out-Patients for the First 21 Diseases ___________ 4.4.2-23

at Nong-Kob Sub-district Health Center





at Khok Sa-at Sub-district Health Center



at Nong-Kwai-So Sub-district Health Center



at Nong-Huapo Sub-district Health Center



at Khok Toom Sub-district Health Center



at Phonthong Sub-district Health Center


4.4.2-27 Number of Out-Patients in Phra Nakhon Si Ayutthaya Province _____ 4.4.2-30

Classified by Causes (21 Diseases) during the Year 2005-2007

4.4.2-28 Number of Out-Patients in Pachee District Classified _____________ 4.4.2-32

by Causes (21 Diseases) during the Year 2005-2007

4.4.2-29 Number of Out-Patients in Pachee Hospital Classified ____________ 4.4.2-33

by Causes (21 Diseases) during the Year 2005-2007

4.4.2-30 Incidence Rates of Out-Patients for the First 21 Diseases __________ 4.4.2-34

at Khok Muang Sub-district Health Center



LIST OF TABLES (Cont’d)

Table Page


at Rasom Sub-district Health Center



at Donyanang Sub-district Health Center


4.4.2-33 Incidence Rates of Out-Patients for the First 21 Diseases _________________ 4.4.2-38

at Nong-Namsai Sub-district Health Center


5.1.1-1 Meteorological Data and Frequency of Record ______________________ 5.1-4

of Meteorological Station

5.1.1-2 Stack Data and Air Emission Rates of Emission Sources ______________ 5.1-7

In case of Natural Gas Firing, Nong-Saeng Power Plant Project


5.1.1-3 Stack Data and Air Emission Rates of Emission Sources ______________ 5.1-8

In case of Diesel Oil Firing, Nong-Saeng Power Plant Project


5.1.1-4 Details of Emission Sources in SIL Industrial Land (Saraburi) __________ 5.1-9

5.1.1-5 Details of Emission Sources to be Developed in Future ______________ 5.1-13

5.1.1-6 Modeling Results of Maximum Concentration of Air Pollutants _______ 5.1-15

in Ambient Air Using Meteorological Data of Kao Noy Fire Station

Meteorological Station of the Year 2005




Table Page
























In case of Start up/Shutdown, Nong-Saeng Power Plant Project



Table Page

5.1.1-13 Modeling Results of Maximum 1-hr Average Concentration __________ 5.1-32

of Sulfur Dioxide in Ambient Air

Using Meteorological Data of the Year 2007 (Including Background)

Nong-Saeng Power Plant Project, Power Generation Supply Co., Ltd.

5.1.1-14 Modeling Results of Maximum 1-hr Average Concentration __________ 5.1-43

of Nitrogen Dioxide in Ambient Air

Using Meteorological Data of the Year 2007 (Including Background)


5.1.1-15 Modeling Results of Maximum 24-hr Average Concentration _________ 5.1-54

of TSP in Ambient Air

Using Meteorological Data of the Year 2007 (Including Background


5.1.2-1 Sound Pressure Level Generated from Various _____________________ 5.1-62

Construction Equipments, Nong-Saeng Power Plant Project


5.1.2-2 Annoyance Noise Level of Project to Communities around Project Area _ 5.1-67

during Construction Phase, Nong-Saeng Power Plant Project


5.1.2-3 Sound Pressure Level from Equipments/Machineries Installed ________ 5.1-69

during Operation Phase, Nong-Saeng Power Plant Project


5.1.2-4 Annoyance Noise Level of Project to Communities around Project Area _ 5.1-72

during Operation Phase, Nong-Saeng Power Plant Project




Table Page

5.1.3-1 Monthly River Water Discharge into Klong Huaiba ________________ 5.1-82


as a result of the rainfalls over around areas

5.1.4-1 Comparison of Effluent Quality _________________________________ 5.1-88

of Nong-Saeng Power Plant Supply with Standard

5.1.4-2 Comparison of Effluent Quality in Klong Huaiba ___________________ 5.1-90

(Klong Nong-Ngu-Loem) Before and After Mixing with Effluent

of Nong-Saeng Power Plant and Standard of Surface Water

which is Not Sea Water

5.3.2-1 Passenger Car Unit Factor (PCU) of Vehicle ________________________ 5.3-6

5.3.2-2 Traffic Volume Capacity of Highway _____________________________ 5.3-6

5.3.2-3 Standard for Classification of Traffic Condition in Future _____________ 5.3-6

5.3.2-4 Traffic Volume in Relation to PCU on Highway No. 1 in the Year 2007 __ 5.3-7

5.3.2-5 Comparison of Traffic Volume in Relation to PCU __________________ 5.3-7

on Highway No.1 before Construction Phase, during Construction Phase

and Operation Phase

5.3.2-6 Traffic Volume in Relation to PCU on Highway No. 329 (16+000 km) ___ 5.3-8

in the Year 2007

5.3.2-7 Comparison of Traffic Volume in Relation to PCU __________________ 5.3-8

on Highway No.329 before Construction Phase,

during Construction Phase and Operation Phase

5.3.2-8 Traffic Volume in Relation to PCU on Highway No. 3043 ____________ 5.3-10

in the Year 2007



Table Page

5.3.2-9 Comparison of Traffic Volume in Relation to PCU _________________ 5.3-10

on Highway No.3043 before Construction Phase,


5.3.2-10 Traffic Volume in Relation to PCU on the Road along the Bank _______ 5.3-12

of Klong Rapeepatana-left during July 31-August 1, 2007


of Klong Rapeepatana-right during July 31-August 1, 2007

5.3.2-12 Traffic Volume on the Road along the Bank ______________________ 5.3-14

of Klong Rapeepatana-left during July 31-August 1, 2007

08.00-10.00 a.m. and 04.00-06.00 p.m.

5.3.2-13 Traffic Volume on the Road along the Bank _______________________ 5.3-14

of Klong Rapeepatana-right during July 31-August 1, 2007

08.00-10.00 a.m. and 04.00-06.00 p.m.


of Klong Rapeepatana-left during July 31-August 1, 2007,

during 08.00-10.00 a.m.


of Klong Rapeepatana-left during July 31-August 1, 2007,

during 04.00-06.00 p.m.


of Klong Rapeepatana-right during July 31-August 1, 2007,

during 08.00-10.00 a.m.


of Klong Rapeepatana-right during July 31-August 1, 2007,

during 04.00-06.00 a.m.



Table Page


during 08.00-10.00 a.m. and 04.00-06.00 p.m. on the Road along the Bank

of Klong Rapeepatana-right before Construction Phase,



during 08.00-10.00 a.m. and 04.00-06.00 p.m. on the Road along the Bank

of Klong Rapeepatana-left before Construction Phase,


5.4.2-1 Impacts of Nitrogen Dioxide on Human __________________________ 5.4-10

5.4.2-2 Effects of Sulfur Dioxide and Smoke or Particulates on Human _______ 5.4-11

5.4.5-1 Details of Natural Gas Pipeline of Nong-Saeng Power Plant Project ____ 5.4-31

5.4.5-2 Details of Diesel Oil Storage Container __________________________ 5.4-32


5.4.5-3 Details of Diesel Oil Pipeline of Nong-Saeng Power Plant Project ______ 5.4-32

5.4.5-4 Consequence Assessment in Case of Leakage ______________________ 5.4-37

in Natural Gas Pipeline Area


5.4.5-5 Consequence Assessment in Case of Leakage _____________________ 5.4-39

in Diesel Oil Pipeline Area


5.4.5-6 Consequence Assessment in case of Leakage ______________________ 5.4-40

in the Natural Gas Pipeline Area (In case of control valve failure)




Table Page


in Diesel Oil Pipeline Area (In case of control valve failure)



in the Oil Storage Tank Area


7.4-1 Summary of Public Relation and Public Participation Activities _________ 7-7


7.5-1 Summary of Media Used in Social Study and People’s Opinion _________ 7-9


7.5-2 Date/Time, Place and Number of Participants in the First Public Hearing _ 7-14

of the Nong-Saeng Power Plant Project

7.5-3 Summary of Q&A Issues and Suggestions from the Public Hearing Stages ___ 7-16


7.5-4 Participants of the Tour to the Existing Power Plants ___________________ 7-21

7.5-5 Summary of Concern Issues, Suggestions and Corrective Method ________ 7-23

of the Tour Group

7.5-6 The Meeting for Result Presentation and the Second Public Hearing ______ 7-26


7.5-7 Summary of Concern Issues, Corrective Method and Suggestion _________ 7-28

from the Second Public Hearing


7.5-8 Summary of Questioning Issues and Explanation from Public Stage _______ 7-48




Table Page

7.6-1 Summary of Community Concern Issues and Important ________________ 7-54

Suggestion Classified by Occupational Groups.

7.6-2 Summary of Community Concern Issues Used for Designation ___________ 7-56

of Social Mitigative Measures


7.6-3 Study Implementation in accordance with the Regulation of _____________ 7-66

the Office of the Prime Minister entitled “Public Hearing” B.E.2548

6.1.1 Stack Data and Air Emission Rates In case of Natural Gas Firing __________ 6-5



6.1.2 Stack Data and Air Emission Rates In case of Diesel Oil Firing ___________ 6-6




LIST OF FIGURES Figure Page 3.2-1 Location of Nong-Saeng Power Plant Project, _______________________ 3-2


3.2-2 Location of Nong-Saeng Power Plant Project and _____________________ 3-3

Nearby Communities

3.2-3 Aerial Photograph of Nong-Saeng Power Plant Project Location ________ 3-4

and Vicinity Area


3.2-4 Layout of Power Plant Site, Nong-Saeng Power Plant Project ___________ 3-5

3.2-5 Layout of Reservoir Site, Nong-Saeng Power Plant Project _____________ 3-6

3.2-6 Dike Surrounding Project Area, Nong-Saeng Power Plant Project ________ 3-7

3.2-7 Traffic Routes to Nong-Saeng Power Plant Project ____________________ 3-9

3.3-1 Operation Plan of Nong-Saeng Power Plant Project __________________ 3-11

3.3-2 Transmission Line Route of Nong-Saeng Power Plant Project __________ 3-13

3.5-1 Operating Principles of Cooling Tower of _________________________ 3-16


3.5-2 Schematic Diagram of Electricity Generating Process, ________________ 3-19


3.5-3 Heat Balance at Full Load (100% Load) Operation, __________________ 3-20

Using Natural Gas as Fuel


3.5-4 Heat Balance at Partial Load (80% Load) Operation, _________________ 3-21




LIST OF FIGURES (Cont’d) Figure Page

3.5-5 Heat Balance at Minimum Load (58% Load) Operation, ______________ 3-21



3.5-6 Heat Balance at Full Load (100% Load) Operation, __________________ 3-23

Using Diesel Oil as Fuel


3.5-7 Heat Balance at Partial Load (80% Load) Operation, _________________ 3-24



3.5-8 Heat Balance at minimum load (58% Load) Operation, _______________ 3-25



3.6-1 Map of Natural Gas Pipeline to Nong-Saeng Power Plant Project. _______ 3-29

3.6-2 Layout of Natural Gas Pipeline of Nong-Saeng Power Plant Project _____ 3-32

3.9-1 Location of Water Pumping Station and Route of Pipeline of __________ 3-37


3.9-2 Location of Water Pumping Station and Route of Pipeline of __________ 3-38


3.9-3 Route of Pipeline within Nong-Saeng Power Plant Project _____________ 3-39

in Power Plant Site Area.

3.9-4 Route of Pipeline within Nong-Saeng Power Plant Project ____________ 3-40

in Reservoir Area



3.9-5 Structure in the Vicinity Area of Effluent Discharge to _______________ 3-41

Klong Nong-Ngu-Loem of Nong-Saeng Power Plant Project

3.9-6 Details of Water Pumping Station of Nong-Saeng Power Plant Project ___ 3-42

3.9-7 Details of Water Pumping Station of Nong-Saeng Power Plant Project ___ 3-43

3.9-8 Laying Raw Water Pipeline And Effluent Drainage, _________________ 3-46


3.9-9 Water Treatment System of Nong-Saeng Power Plant Project __________ 3-49

3.9-10 Demineralization System __________________________________________________________ 3-49

3.9-11 Water Balance when Natural Gas Is Used as Fuel, ____________________________ 3-50


3.9-12 Water Balance when Diesel Oil Is Used as Fuel, ____________________ 3-51


3.14-1 Green Areas of Nong-Saeng Power Plant Project ____________________ 3-65

4.1.1-1 Aerial Photograph of Nong-Saeng Power Plant Location ______________ 4.1-2

and Vicinity Area Power Generation Supply Co., Ltd.

4.1.2-1 Atmosphefic Pressure during 30-Year Period _______________________ 4.1-5

(the year 1976-2005), Don Muang Airport Meteorological Station

4.1.2-2 Temperature during 30-Year Period ______________________________ 4.1-5


4.1.2-3 Relative Humidity during 30-Year Period _________________________ 4.1-6




4.1.2-4 Rainfall during 30-Year Period _________________________________ 4.1-6


4.1.2-5 Wind Roses during 30-Year Period (the year 1951-1980), _____________ 4.1-8


4.1.2-6 Wind Roses during 10-Year Period (the year 1981-1990), _____________ 4.1-9


4.1.2-7 Wind Rose at Don Muang Meteorological Station __________________ 4.1-11

in the Year 2007

4.1.2-8 Percentage of Atmospheric Stability Class at ______________________ 4.1-13

Don Muang Meteorological Station in the Year 2007

4.1.2-9 Monitoring Results of 1-hr Average Concentration of Sulfur dioxide ___ 4.1-16

in Ambient Air during the Year 2005-2008,

Kao Noy Fire Fighting Station

4.1.2-10 Monitoring Results of 1-hr Average Concentration of Nitrogen dioxide _ 4.1-17



4.1.2-11 Monitoring Results of 24-hr Average Concentration of PM-10 ________ 4.1-18



4.1.2-12 Monitoring Location of Ambient Air Quality and Sound _____________ 4.1-19

Pressure Level around Nong-Saeng Power Plant Project

4.1.4-1 Geological Characteristic of the Study Area, _______________________ 4.1-29




4.1.4-2 Map of Potential Areas of Sinking Holes in Thailand ________________ 4.1-30

4.1.4-3 Map of Potential Areas of Sinking Holes in Saraburi Province_________ 4.1-31

4.1.4-4 Map of Earthquake Risky Zones in Thailand_______________________ 4.1-33

4.1.4-5 Map of Fault Zones in Thailand _________________________________ 4.1-34

4.4.1-6 Map of Soil Series in the Study Area, ____________________________ 4.1-35


4.1.5-1 Surface Water Resources in the Study Area _______________________ 4.1-39

4.1.5-2 Map showing the Measuring Point of Current ______________________ 4.1-41

at the Water Pumping Point in Pa Sak River,


4.1.5-3 Hourly Water Level, Water Current Velocity, Temperature, __________ 4.1-44

Salinity, Suspended Solids at the Level of 0.2 of Water Depth

4.1.5-4 Hourly Water Level, Water Current Velocity, Temperature, ___________ 4.1-45

Salinity, Suspended Solids at the Level of 0.8 of Water Depth

4.1.5-5 25-Hour Average Values of Temperature, Salinity, _________________ 4.1-46

Suspended Solids, Water Current Velocity (u) in Flood Tide

and Ebb Tide Direction, Water Current Velocity along

Cross Section of Channel (v) at 11 Levels of Depth.

4.1.5-6 Cross Section of Klong Huaiba (Klong Nong-Ngu-Loem) in August, ___ 4.1-48

B.E.2551(Profile of Surveyed Water Level in Canal Bottom of Klong Huaiba)

4.1.5-7 Location of Surveyed Point of Water Current in Klong Huaiba ________ 4.1-49

(Klong Nong-Ngu-Loem) in August, B.E.2551



4.1.5-8 Monitoring Station of Water Quality of the Office of Irrigation ________ 4.1-56

No. 10, Lopburi

4.1.5-9 Comparison of Water Quality of Pa-Sak River in Rama Six Dam Area ___ 4.1-60

4.1.5-10 Monitoring Station of Water Quality and Ecology ___________________ 4.1-63

4.1.5-11 Comparison of Water Quality in Klong Huaiba (Klong Nong-Ngu-Loem) _ 4.1-69

4.1.5-12 Water Sampling Stations of Klong Huaiba ________________________ 4.1-70

(Klong Nong-Ngu-Loem) in August B.E.2551

4.1.5-13 Physical Characteristics of Water Sampling Points __________________ 4.1-71

of Klong Huaiba Area (Klong Nong-Ngu-Loem)

in August B.E.2551

4.2.2-1 Wat Nong Sida Location where Flying Foxes were found, ____________ 4.2-22

Comparing to Nong-Saeng Power Plant Location

4.3.3-1 Zone Areas in the Radius of 5 km from Nong-Saeng __________________ 4.3-2

Power Plant Project

4.3.1-2 Land Use in the Study Area of 5 km. Radius of the Project area _________ 4.3-6

4.3.1-3 Project Area of Nong-Saeng Power Plant before Construction __________ 4.3-8

4.3.1-4 Land Use in the Study Area of 500 m Radius from __________________ 4.3-10

Water Pipeline, Nong-Saeng Power Plant Project

4.3.1-5 Location of Chicken Farm around the Project Site within 5 km. Radius _ 4.3-12


4.3.1-6 Location of Mushroom Farm in Klong Huaiba Area ________________ 4.3-13




4.3.2-1 Downstream of Irrigation Project Area in Water Pumping Area ________ 4.3-18


4.3.2.2 Monthly Quantity of River Water at the Downstream ________________ 4.3-24

of Rama Six Dam and End of Phra Narain Water Gate

4.3.2-3 Water Level in Field at Various Levels ___________________________ 4.3-30

4.3.3-1 Traffic Routes to Nong-Saeng Power Plant Project __________________ 4.3-36

4.3.6.1 Flooded Area around Nong-Saeng Power Plant Project ______________ 4.3-57

in the Year B.E.2538 (1995)

4.3.6-2 Flooded Area around Nong-Saeng Power Plant Project ______________ 4.3-58


4.3.6-3 Flooded Area around Nong-Saeng power Plant Project ______________ 4.3-59


4.3.6-4 Repetitive Flooded Area around ________________________________ 4.3-60


4.3.6-5 Flooded Area in Sao Hai Irrigation Project in B.E.2549 (2006) ________ 4.3-61

4.3.6-6 Water Flow Direction in Sao Hai Irrigation Project _________________ 4.3-62

4.3.6-7 Water Flow Direction in Sao Hai Irrigation Project _________________ 4.3-63

4.4.1-1 The study Area and Location of the Communities _________________ 4.4.1-7

Surveyed for Socio-economic Status and Comments on


4.4.1-2 Distribution of Samples Surveyed for Socio-economic Status ________ 4.4.1-8

and Comments on Nong-Saeng Power Plant Project.



5.1.1-1 Isopleths of Maximum 1-hr Average GLC of SO2 (g/m3) Resulting ____ 5.1-23

from Project Emission Sources In case of Natural Gas Firing and

100% Load Operation (Meteorological Data of the Year 2007)


from the Project Emission Sources, In case of Diesel Oil Firing, and

100% Load Operation (Meteorological Data in Year 2007)

5.1.1.3 Isopleths of Maximum 1-hr Average GLC of SO2 (g/m3) Resulting ____ 5.1-25

from the Existing Emission Sources (Meteorological Data in Year 2007)


from the Project Emission Sources and Existing Emission Sources.

In case of Natural Gas Firing and 100% Load Operation

(Meteorological Data in Year 2007)


from the Project Emission Sources and Existing Sources. In case of

Diesel Firing and 100% Load Operation (Meteorological Data in Year 2007)

5.1.1-6 Isopleths of Maximum1-hr Average GLC of SO2 (g/m3) Resulting ____ 5.1-29

from the Project Emission Sources, Including Existing Sources

and Sources to be Developed in Future In case of Natural Gas Firing

and 100% Load Operation. (Meteorological Data of the Year 2007)



and Sources to be Developed in Future In case of Diesel Oil Firing

and 100% Load Operation. (Meteorological Data in Year 2007)



5.1.1-8 Isopleths of Maximum 1-hr Average GLC of NO2 (g/m3) Resulting ___ 5.1-33

from the Project Emission Sources, In case of Natural Gas Firing,



from the Project Emission Sources, In case of Diesel Oil Firing





from the Project Emission Sources, and Existing Emission Sources.

In case of Natural Gas Firing, and 100% Load Operating



from the Project Emission Source, and Existing Emission Sources.

In case of Diesel Oil Firing, and 100% Load Operating












5.1.1-15 Isopleths of Maximum 24-hr Average GLC of TSP (g/m3) Resulting __ 5.1-45

from the Project Emission Sources. In case of Natural Gas Firing

and 100% Load Operation (Meteorological Data of the Year 2007)


from the Project Emission Sources, In case of Diesel Oil Firing,





from the Project Emission Sources, In case of Natural Gas Firing,



from the Project Emission Sources, In Case of Diesel Firing,

and 100% Load Operation. Including Existing Source

(Meteorological Data of the Year 2007)


from the Project Source, In Case of Natural Gas Firing,

and 100% Load Operation Including Existing Source

and Source will be developed in future (Meteorological Data of the Year 2007)

5.1.1-21 Isopleths of Maximum 24-hr Average GLC of TSP (g/m3) __________ 5.1-52

Resulting from the Project Source, In Case of Diesel Oil Firing,

and 100% Load Operation. Including Existing Source

and Source will be developed in future (Meteorological Data of the Year 2007)



5.1.2-1 Noise Contour around the Nong-Saeng Power Plant Project ___________ 5.1-65

during Construction Phase (Daytime Period)


during Construction Phase (Night-time Period)


during Operation Phase

5.1.2-4 Noise Contour around Production Process Area, ___________________ 5.1-71

Nong-Saeng Power Plant Project during Operation Phase

5.1.2-5 Location of Chicken Farm around Nong-Seang Power Plant Project ____ 5.1-74

in 2.1 km Radius Power Generation Supply Co., Ltd.

5.1.3-1 Klong Huaiba (Klong Nong-Ngu-Loem) __________________________ 5.1-81

into which Nong-Saeng Power Plant Project Drain Effluent,

and Location of Monthly River Water Analysis as a Result of Rainfall

5.3.6-1 Drainage Ditch Surrounding Project Area _________________________ 5.3-31


during Construction and Operation Phase

5.3.6-2 Stormwater Management during Construction Phase ________________ 5.3-33


5.4.5-1 Natural Gas Pipeline, Location of Diesel Oil Storage Container ________ 5.4-33

and Diesel Oil Pipeline within Nong-Saeng Power Plant

5.4.5-2 Radius of Heat Impacts in case of Jet Fire Caused by ________________ 5.4-44

Natural Gas Leaked from PTT Metering Station to Gas Compressor of

Nong-Saeng Power Plant Unit 1 from 100 % Rapture Pipeline in F-Class

(S-1L 100% 1.5/F) of Atmospheric Stability PPT Metering Station Area






(S-1L 100% 1.5/F) of Atmospheric Stability

Gas Compressor of Nong-Saeng Power Plant Unit 1 Area

5.4.5-4 Radius of Heat Impacts in case of Flash Fire Caused by ______________ 5.4-45


Nong-Saeng Power Plant Unit 1 from 100 % Rapture Pipeline in D-Class

(S-1L 100% 5D) of Atmospheric Stability PPT Metering Station Area




(S-1L 100% 5D) of Atmospheric Stability


5.4.5-6 Radius of Heat Impacts in case of Jet Fire Caused by _______________ 5..4-47



(S-2L 100% 1.5/F) of Atmospheric Stability PPT Metering Station Area





Gas Compressor of Nong Saeng Power Plant Unit 1 Area






(S-2L 100% 5D) of Atmospheric Stability PPT Metering Station Area







Natural Gas Leaked from Gas Compressor of Nong-Saeng Power Plant _ Unit 1

to Gas Turbine 1 of Nong-Saeng Power Plant Unit 1 from 100 %

Rupture Pipeline in F-Class (S-3L 100% 1.5/F) of Atmospheric Stability



Natural Gas Leaked from Gas Compressor of Nong Saeng Power Plant _ Unit 1

to Gas Turbine 1 of Nong Saeng Power Plant Unit 1 from 100 % Rupture Pipeline

in F-Class (S-3L 100% 1.5/F) of Atmospheric Stability

Gas Turbine 1 of Nong Saeng Power Plant Unit 1 Area



to Gas Turbine 1 of Nong-Saeng Power Plant Unit 1 from 100 % Rupture Pipeline

in D-Class (S-3L 100% 5D) of Atmospheric Stability








Gas Turbine 1 of Nong-Saeng Power Plant Unit 1 Area







Natural Gas Leaked from Gas Compressor of Nong-Saeng Power Plant Unit 1





Natural Gas Leaked from Gas Compressor of Nong Saeng Power Plant Unit 1

to Gas Turbine 2 of Nong Saeng Power Plant Unit 1 from 100 % Rupture Pipeline




















5.4.5-25 Radius of Heat Impacts in case of Flash Fire Caused by _____________ 5.4-59






Diesel Oil Leaked from Diesel Oil Pipeline to Gas Turbine 1

of Nong-Saeng Power Plant Unit 1 from 100 % Rupture Pipeline


Diesel Oil Storage Tank Area








5.4.5-28 Radius of Heat Impacts in case of Pool Fire Caused by ______________ 5.4-62






Diesel Oil Leaked from Diesel Oil Pipeline of Diesel Oil Storage Tank to

Gas Turbine 1 of Nong-Saeng Power Plant Unit 1 from 100 % Rupture Pipeline









Diesel Oil Leaked from Diesel Oil Pipeline of Diesel Oil Storage Tank







Rupture Pipeline in D-Class (S-8L 100% 5D) of Atmospheric Stability
















to Gas Turbine 1 of Nong Saeng Power Plant Unit 2 from 100 %









Diesel Oil Leaked from Diesel Oil Pipeline of Diesel Oil Storage Tank ______






5.4.5-48 Radius of Heat Impacts in case of Flash Fire Caused by ____________ 5.4.5-75












to Gas Turbine 1 of Nong-Saeng Power Plant Unit 1

(In Case of Control Valve Failure) from 100 % Rapture Pipeline in F-Class





to Gas Turbine 1 of Nong Saeng Power Plant Unit 1





















(In Case of Control Valve Failure) from 100 % Rapture Pipeline in D-Class
























Diesel Oil Leaked from Diesel Oil Storage Tank No. 1

in D-Class (S-1T 100% 5D) of Atmospheric Stability


Diesel Oil Leaked from Diesel Oil Storage Tank No. 1

in F-Class (S-1T 100% 1.5/F) of Atmospheric Stability


Diesel Oil Leakage from Diesel Oil Storage Tank No. 2

in D-Class (S-2T 100% 5D) of Atmospheric Stability


Diesel Oil Leakage from Diesel Oil Storage Tank No. 2

in F-Class (S-2T 100% 1.5/F) of Atmospheric Stability



8-1 Chart of the general complaints ___________________________________ 8-2

8-2 Chart of the emergency complaints ________________________________ 8-3

Environmental Report for submittal to ADB Nong-Saeng Power Plant Project Chapter 1 Power Generation Supply Co., Ltd. Executive Summary

T-EIA208102 1-1 F208102-Chap1E-ADB

Chapter 1

Executive Summary The Nong-Saeng Power Plant Project of Power Generation Supply Co., Ltd. is

located in an area of approximately 570 rai which is allocated into 2 portions i.e. a power

plant area of approximately 300 rai in Moo 4 of Ban Huaiba, Nong-Kob Sub-district,

Nong-Saeng District of Saraburi Province; and a reservoir area of approximately 270 rai in

Moo 7 of Ban Thamsinthusopa, Nong-Namsai Sub-district, and Moo 2 of Ban Klong,

Khok Muang Sub-district of Pachee District of Phra Nakhon Si Ayutthaya Province. The

proposed Nong-Saeng Power Plant will utilize natural gas as main fuel and diesel oil as

backup fuel. The total installed capacity of this power plant, comprising two 826.6-MW

blocks of combined cycle facilities, is approximately 1,653 MW. About 1,600 MW of the

electricity to be generated will be sold to the Electricity Generating Authority of Thailand

(EGAT) while the remaining 53 MW will be used in-house. The main components of the

proposed power plant include four combustion turbine generators (CTG), four heat

recovery steam generators (HRSG) and two steam turbine generators (STG). The

generated electricity to be sold to EGAT will be dispatched via the 500 kV Pachee Sub-

station and the transmission line connecting to EGAT’s Tatakoe-Wangnoi transmission

line. The natural gas for the project to be supplied by PTT (Public) Co., Ltd. is

approximately 265.18 million cubic feet per day and the diesel oil supply is approximately

6.594 million liters per day. The raw water will be pumped from the Pa-Sak River at

upstream of the Phra Rama Six Dam and stored in the 1,600,000-cubic meter reservoir

before use. The wastewater generated by the project will be treated and reused, and the

effluent discharged from the cooling tower (the only discharge effluent) will be drained

into the holding pond before discharging into Klong Huaiba (Klong Ngu-Loem).

The Analysis of alternatives for the project included the consideration of three

alternative sites i.e. the project site, Nong-Namsai and KK2 Power Plant along with three

major alternatives i.e. alternative fuel, alternative plant location and alternative electricity

generating technology. The key issues considered in the analysis consisted of both

engineering and environmental aspects including the distances from fuel source,

transmission line, water resource, and the stability of water supply source, land needed to


T-EIA208102 1-2 F208102-Chap1E-ADB

be covered with soil, land access; and impacts on communities, air quality, water usage,

water quality and agriculture land, and conflict relating to the use of land. Based on this

analysis of alternatives, the project site was selected for the proposed power plant

development.

The Nong-Saeng Power Plant Project is subject to the requirements on the

preparation and submission of the EIA report to ONEP for review and approval (under the

Notifications of the Ministry of Science, Technology and Environment of August 24, 1992,

and No. 2 of 1992 and No. 3 of 1996). Therefore the project contracted SECOT to conduct

the required EIA study. The study must follow ONEP guidelines which also include the

requirements to have the EIA study report to include the results and documents showing

the compliance with the rules/regulations of other relevant government offices.

The results (including the summarized key environmental & social baseline

data/related activities, anticipated impacts and associated mitigative measures) and

recommendations derived from the EIA study are presented in brief as follows:

1.1 Air Quality

The main air quality impacts potentially resulted from the Nong-Saeng Power

Plant Project during the construction and operation periods will include the adverse effects

from dust dispersion during the construction phase and stack emissions during the

operation phase.

During the construction phase of the project anticipated to take 40 months,

most of the construction activities will include land preparation and construction of

foundation, transportation of construction materials, and motor vehicles entering and

exiting the project area. The project-induced dust to be generated during this period will be

rather large sizes. Thus the Nong-Saeng Power Plant Project has established suitable

environmental impact mitigation measures to cope with the fugitive dust problem during

the construction phase.

During the operation phase, the air quality impact will result from the

operation of the proposed Nong-Saeng Power Plant which will use natural gas as main fuel

and diesel oil as backup fuel to generate the electricity. The combustion of these fuels will

generate major air pollutants including primarily sulfur dioxide (SO2), oxides of nitrogen

(NOx) and particulate matters (PM) which will be emitted into the atmosphere. The air

quality impact assessment using the AERMOD model with the meteorological input data of


T-EIA208102 1-3 F208102-Chap1E-ADB

the year 2007 indicated that all of the predicted SO2 concentrations resulting from the

emission sources of the project in case of natural gas firing at all operating loads (100%,

80%, 58% and start-up & shutdown) complied with the National Ambient Air Quality

Standards for the hourly, 24-hour and annual average concentrations of sulfur dioxide of

780, 300 and 100 micrograms per cubic meter respectively (under the Notification of the

National Environment Board, No.21 (2001) and No.24 (2004)). In case of diesel oil

firing, the modeling results also indicated that all of the predicted SO2 concentrations at all

operating loads were within the applicable standards for the hourly, 24-hour and annual

average concentrations of sulfur dioxide.

The estimated maximum hourly average concentrations of nitrogen dioxide in

the ambient air resulting from the emission sources of the project, in case of natural gas or

diesel oil firing at all operating loads and applying the NO2/NOx ratio of 0.75, were within

the applicable standard of 320 micrograms per cubic meter (under the Notification of the

National Environment Board, No.10 (1995)).

The estimated maximum 24-hour and annual average ambient particulate

concentrations resulting from the emission sources of the project with natural gas or diesel

oil firing at all operating loads were within the applicable standards of 330 and 100

micrograms per cubic meter for 24-hour and annual average concentrations respectively

(under the Notification of the National Environment Board, No.24 (2004)).

Accordingly, the potential impact is considered to be non-significant.

1.2 Noise Level

During the construction phase of the proposed Nong-Saeng Power Plant, the

noise sources of the project will include the equipment/machinery with the maximum

sound pressure levels at a distance of 15 meters assigned to be 101 dB(A) and 85 dB(A)

for the daytime and nighttime respectively. However, the noise levels at these noise

sources of the project will be reduced by enclosing the concerned areas with iron or zinc

sheets of at least 1.3 mm. in thickness. This will result in a reduction of noise level from

noise sources by about 25 dB(A). (Reference : FHWA (Federal Highway Administration)

U.S.A., 2006). Therefore the maximum sound pressure levels at such a distance during the

construction phase after installing the iron or zinc sheets are anticipated to be 76 dB(A)

and 60 dB(A) for the daytime and night-time respectively. The noise impact was

determined using the Decay Formula Equation. From the noise impact assessment, it was


T-EIA208102 1-4 F208102-Chap1E-ADB

found that the noise levels in the plant vicinity areas at the 500-m, 1-km, 2-km and 3-km

radii during the daytime and night-time were rather low compared with the applicable

standards and the impacts of the sound pressure levels from the project decreased

according to the distance from the construction area. The assessment results indicated that

the communities nearby the project area including Wat Thamsinthusopa, Wat Nong-

Tangbun, Wat Khok Muang and Wat Nongkratart would expose to rather low noise levels

from the project during both daytime and nighttime. All estimated sound pressure levels

were below the standard of 70 dB(A) under the Notification of the National Environment

Board No.15 (B.E.2540). The noise levels generated from the project were used to estimate

the annoying noise level which was found to be below the standard of 10 dB(A) under the

Notification of National Environment Board No.29 (B.E.2550).

During the operation phase, the communities nearby the project area (Wat

Thamsinthusopa, Wat Nong-Tangbun, Wat Kok Muang and Wat Nongkratart) would

expose to low noise levels from the project. The estimated sound pressure levels were also

found to be below the standard of 70 dB(A) under the Notification of the National

Environment Board No.15 (B.E.2540). Thus the impact of annoying noise level on the

nearby communities were found to be nil during both daytime and night-time.

Therefore the potential noise impact is considered to be low.

1.3 Surface Water Hydrology and Surface Water Quality

The activities of the proposed power plant can potentially induce an impact on the quality of surface water resources outside the project area during both the construction and operation phases. During the construction phase, two major sources of wastewater will include the wastewater from the contractor(s) and construction workers. The sanitary wastewater to be generated from the construction workers will be drained into septic tanks and then retained in the sumps for later uses such as spraying over the construction area and other vacant areas of the project to suppress dust dispersion without discharging any effluent to the outside. In addition, the storm water may wash away the sediments from the construction area into the outside water resources. Hence the project has prepared the mitigative measures by requiring the storm water to be drained into a temporary sump to let the sediments settle and then the clear water from the sump will be separated for various uses in the construction area and activities, and subsequently drained into the receiving water resources outside the project area.


T-EIA208102 1-5 F208102-Chap1E-ADB

During the operation phase, the project will utilize the water from the Pa-Sak River by pumping the water from the river at a rate of 46,932 cubic meters per day when using natural gas as fuel and 38,518 cubic meters per day when using diesel oil as fuel. The water from the river will be stored in the 1,600,000 cubic meter raw water reservoir and subsequently used to supply to the demineralization system, cooling system, office building and others.

The project is designed to reuse the effluent as much as possible. The management of the effluent from the project operation will include 2 parts as follows:

(1) Cooling water blowdown from the cooling system (i.e. 11,276 and 9,168 cubic meters per day when using natural gas and diesel oil as fuel respectively) will be drained into two 45,000-cu.m. cooling water blowdown ponds which can retain the effluent for 3 days before discharging into Klong Huaiba (Klong Nong-Ngu-Loem).

(2) Non-cooling water effluent will be split into 2 portions as follows: - Effluents contaminated with chemicals including the effluents from

the demineralization system, contaminated water from the chemical storage area, laboratory, etc. will be collected and piped to the neutralization pit for treatment. The treated effluents of a total rate of approximately 88 cubic meters per day will be conveyed into a zero liquid discharge system to make reusable water. The remaining solids from the final step of this system will be subsequently disposed of according to the procedure specified in the Notification of the Ministry of Industry, entitled “Disposal of garbage or unused materials, 2005.”

- Effluent from the office building of 30 cubic meters per day will be pretreated in the septic tanks and then collected in the holding pond and subsequently used for watering the plants. The remaining water (from watering the plants, if any) will be conveyed into the zero liquid discharge system. If the pretreated effluent cannot be used for watering plants, all of it will be conveyed into the zero liquid discharge system with a sufficient retention volume. The quantity of the effluent from the office building and the chemical contaminated effluent will total 118 cubic meters per day.


T-EIA208102 1-6 F208102-Chap1E-ADB

The project has prepared the appropriate mitigative measures for use during

both the construction and operation phases, with a special attention to the protection of the

receiving water resources and the communities around the project area. By implementing

the water quality impact mitigative measures, the effluent quality will be controlled to

meet the effluent standards specified under the Notification of the Ministry of Industry,

No.2, B.E.2539 (1996) entitled “Characteristics of effluent discharged from factories”, and

the Order of the Royal Irrigation Department No.883/2532, entitled “The mitigation of low

quality effluent discharged into the irrigation waterways and the waterways connected to

the irrigation waterways within the irrigation project areas.” Accordingly, the potential

impact is considered to be non-significant.

1.4 Forestry and Wildlife Ecology

It was found from the study and survey of forestry and wildlife near the power

plant area that the condition of the study area could be described as typically flat lands

with flooded areas between the paddy fields and communities. The condition of forests

covering the ground was described as cultivated forests mixed with man-made structures

and none of the natural forest condition actually existed in this area. Moreover, the

remaining big trees in the area were grown by local people. For the diversity of wildlife

species in the study area, the results from the study revealed a total of 138 species

including the wildlife that could be sighted in the open, paddy field, grove and wetland

habitat areas. This is because the existing condition of the study area was typically paddy

fields where rice growing was still active with communities and some temples & trees

existed, and some wetlands sighted. This area, having no condition of natural forest land,

was found to be completely altered from its natural feature. The ecosystem in the area was

a man-made one so no natural wildlife habitats or forest was found to remain in the

environment. The only existing habitat areas included paddy fields, unused lands,

wetlands and communities, so the wildlife species found in this area were those that had

well adapted themselves to survive in this kind of community area. None of the wildlife

species normally living in the dense forest habitat areas was found here and the sighted

ones all had the capability to adapt themselves very well. Therefore the potential impact is

considered to be low.


T-EIA208102 1-7 F208102-Chap1E-ADB

1.5 Aquatic Ecology and Fishery

The project will drain the flowing water during the construction phase and the

effluent from the cooling system during the operation phase into Klong Huaiba (Klong

Nong-Ngu-Loem). The drainage of the effluent may adversely affect the aquatic

ecological system by reducing the number of the planktons and young aquatic lives which

may be entrained in the water to be pumped for the project’s uses. Therefore the potential

impact is considered to be low.

1.6 Land Use

The development of the Nong-Saeng Power Plant Project requires an area of

570 rai. At present, the major parts of this area are mostly paddy fields, grass fields and

unused or vacant areas. The pumping station will occupy approximately 1 rai of land and

the water pipeline designed with an approximate length of 16 kilometers. The construction

of the water pipeline requires an area of approximately 2 meters in width, starting from the

pumping station at upstream of the Rama Six Dam and routing in parallel with the road

along the bank of Klong Rapeepatana-East to the project site. The water drainage pipeline

designed with a length of only 150 meters and a width of approximately 2 meters will be

routed from the project site and crossed under the road along the bank of Klong

Rapeepatana to merge with the discharge pipe on the reservoir side, and then directed into

Klong Huaiba (Klong Nong-Ngu-Loem) on the south side of the reservoir. Therefore the

potential impact is considered to be low.

1.7 Water Usage

During the construction phase of the project, the workers with the maximum

number of 6,000 will consume approximately 360 cubic meters of water per day (estimated

at 60 liters per person per day). The project will buy the water either from the Office of

Water Supply in Nong-Kae District or the Office of Water Supply in Taruer District.

Considering the existing water production capacity of the Office of Water Supply in Nong-

Kae District of 573,462 cubic meters per month and its water dispensing rate of 483,820

cubic meters per month, it can be noted that this agency still have the water supply reserve

of 90,042 cubic meters per month; whereas the Office of Water Supply in Taruer District

has its existing water production capacity of 159,787 cubic meters per month and water

dispensing rate of 113,378 cubic meters per month, and thus still have the water supply


T-EIA208102 1-8 F208102-Chap1E-ADB

reserve of 46,409 cubic meters per month. During its operation phase, the project will

pump the water from the Pa-Sak River (at upstream of Rama Six Dam) at the average of

46,932 cubic meters per day during the rainy season or 1.41 million cubic meters per

month for its uses in various activities including electricity generation, cooling system and

others. During June to November of the rainy season, a large quantity of the remaining

water is released from the Rama Six Dam into the Pa-Sak River (at downstream of Rama

Six Dam) at a rate of 100-642 million cubic meters per month. Thus during these months

of the year the power plant can pump the water with the anticipated very low impact on the

downstream areas of the Rama Six Dam. This is because the quantity of water to be drawn

to the power plant is estimated at only less than 1.41% of the water released from the

Rama Six Dam during the period of the least quantity of water in the rainy season. In the

first month of the rainy season (May) and the beginning of the dry season (December), the

water consumption of the power plant will be approximately 5.6% of the irrigation water to

be released into the Pa-Sak River (at downstream of Rama Six Dam). This water quantity

is considered to impose only a slight effect on the water flow into the downstream of Rama

Six Dam, and definitely no impact on the water flowing into Klong Rapeepatana-Main

Canal will result. During the dry season (January through April), almost all of the water

quantity at upstream of Rama Six Dam is diverted into Klong Rapeepatana-Main Canal for

irrigation purpose. However, it was found from the analysis of the water balance that the

quantity of water usage of the project was less than 1% of the water for irrigation.

However, the project has planned to construct a reservoir with a capacity of 1,600,000

cubic meters to reserve its raw water. With this reservoir, the proposed Nong-Saeng Power

Plant will be able to operate for a period of 39 days without pumping the water from any

outside sources when a problem of water shortage arises in the dry season. Hence the water

usage of the project, particularly during the dry season, will not impose any impact on the

water quantity for the existing agricultural areas. For Klong Huaiba (Klong Nong-Ngu-

Loem), this canal will benefit from the quantity of the discharged water from the project

because of the resultant increase in the water quantity in the canal, particularly during the

dry season. Thus this can be considered as a positive impact of the project.


T-EIA208102 1-9 F208102-Chap1E-ADB

1.8 Transportation

The estimated traffic volume in terms of passenger car units (PCU) on

Highways No.1, No.329, No.3043 and the roads along the banks of Klong Rapeepatana

(left and right stream) were found to be 141,541, 11,660, 3,126, 969 and 208 cars per day

respectively. The V/C ratio values indicated that the vehicular capacities of these roads

were 0.3, 0.2, 0.06, 0.02 and 0.004 respectively and that these roads could definitely

handle more traffic volumes. Besides, the V/C ratio on the roads along the banks of Klong

Rapeepatana (left and right stream) during rush hours or 08.00-10.00 a.m. and 04.00-06.00

p.m. were found to be in a range of 0.002-0.01 and 0.004-0.02 respectively. The vehicle

volume was estimated to be increased during the construction and operation phases by

approximately 150 and 80 cars per day respectively, and, accordingly, the V/C ratios were

then found to be indifferent. Therefore the impacts on traffic condition during the

construction and operation phases were considered to be quite low.

1.9 Drainage and Flood Control

The land preparation, general construction activities, and operation of the

proposed Nong-Saeng Power Plant will potentially induce the impacts on the drainage

condition and may induce flooding. The most potential cause of flooding is the rains over

the area covered by the Klong Preol Water Conveyance and Maintenance Project which

has a road along its boundary. The terrain slopes down to Klong Rapeepatana, so most of

the rainwater will flow towards this canal; but the side dike along the right bank (east) of

this canal, or the road with a high elevation, will retain and accumulate the water that flows

towards it because the water cannot flow over. The study results indicated that the project

area was considered to be in a moderate flood risk zone.

The existing drainage systems around the project include several natural

discharge canals, i.e., Klong Nong-Srueng, Klong Huaiba (Klong Nong-Ngu-Loem),

Klong Ban-Kokkeelek, and Klong Nong-Kae. All of these four canals cross Klong

Rapeepatana with a water gate located at each confluence to control the water flow. These

canals are always dredged to keep them from being shallow, but a problem still exists i.e.

the drainage that cannot be managed in time during heavy rains in the area. This problem

has caused flooding and stagnant waters, especially at the confluences of the discharge

canals (Klong Nong-Srueng/Klong Huaiba [Klong Nong-Ngu-Loem]) and Klong


T-EIA208102 1-10 F208102-Chap1E-ADB

Rapeepatana. There is siphon building at Klong Ban-Kokkeelek that facilitates the

discharge flow to pass under Klong Rapeepatana. The construction of a drainage channel,

currently under consideration, which will facilitate the drainage of flood and stagnant

waters along the side dike of Klong Rapeepatana starts from the north to the south along

Klong Rapeepatana and merges with the siphon to allow the discharged water flow under

Klong Rapeepatana. At present, the terrain condition has been changed to some extent.

There have been some land preparations (i.e. land filling and elevating, self-managed land

preparation, etc.) that do not take natural drainage into consideration. Moreover, the road

network around the project area has made it difficult to drain the rainwater from the area.

If a sufficiently efficient management is not available, the impact will still persist.

Therefore, in order to prevent the impact that may be induced, the project has prepared the

mitigative measures for draining the rainwater from the project area and preventing the

occurrence of flooding in the surrounding areas.

1.10 Solid Wastes

During the construction phase, the maximum of 6,000 workers will generate

approximately 5.1 tons of garbage per day (based on the criterion of approximately 0.85

kilogram of garbage per individual per day). Other solid wastes generated during

construction will include scrap materials from soil excavation (e.g., scraps of soil, sand,

brick, etc.), scraps of construction materials (e.g., fractions of structures, or used or

unwanted materials, etc.), hazardous wastes (e.g., batteries, motor oil, hydraulic oil, filters,

mineral oil, cleaning agents or used solvents) as well as enamel products or rejected paints.

The project will provide a specific space for storing each type of solid wastes including

appropriate containers for separating the solid wastes to facilitate the disposal as per the

Notification of the Ministry of Industry, entitled “Disposal of garbage or unwanted

materials, 2005.”

During the operation phase, 6 types of solid wastes will be properly managed

or disposed of including general garbage from the office building, spent air filters, spent

lubricating oil and oil from the oil separators, spent resins, sludge from the wastewater

treatment system, and solid wastes from evaporation process.

The project will manage and dispose the solid wastes according to the

Notification of the Ministry of Industry, B.E.2548, entitled “Disposal of garbage or unused

materials.”


T-EIA208102 1-11 F208102-Chap1E-ADB

1.11 Occupational Health and Safety

During construction phase, the working condition may induce a risk of

accident. So the project has prepared the mitigative measures for safe working and will

strictly enforce the implementation of these measures. For the operation phase, the

environmental conditions in the workplaces within the proposed Nong-Saeng Power Plant

may have some effects on the health and safety of the plant employees on duty. Three

factors of concern include (i) the main noise sources in the power plant i.e. the gas

turbines, gas compressors, safety valves, etc. The sound pressure levels generated from

these machines and equipment will be controlled by installing acoustic walls,

encapasulates, silencers at the noise sources, assigning employees to work in a control

room, and enforcing them to wear noise protection equipment while working in areas with

the noise levels of higher than 80 dB(A); (ii) major heat sources in the power plant area i.e.

the steam turbines, combustion turbines and HRSGs. To cope with the heat problem, the

project will use the insulating systems and enclosures of heat sources, etc. Employees are

assigned to work in a control room and enforced to wear heat protection equipment while

working in heated areas; and (iii) the proposed power plant will use some chemicals

including sulfuric acid, sodium hypochlorite, and ferric chloride to which the employees

may expose. However, the process of the proposed power plant will be within the closed

systems, and, in addition, the power plant will provide personal protective equipment to

the employees working with the chemicals as well as good ventilation within the power

plant and training on safe working with chemicals and procedures for the prevention and

test of chemical leakage.

The study results relating to the working environment revealed that the impact

on occupational health and safety of the employees in the power plant would be low.

However, the project has specified the mitigative measures in order to mitigate the impact

associated with the working conditions which may adversely affect the employees’ health

and safety.

1.12 Socio-economics

The socio-economic study was conducted by collecting the statistics relating to

the study area along with the field survey in the radius of 5 kilometers around the site of

the proposed Nong-Saeng Power Plant. The study started with visiting the chiefs of


T-EIA208102 1-12 F208102-Chap1E-ADB

government offices at the provincial, district and sub-district levels, community leaders

and local administration organization executives. This activity was followed by an

organization of public hearing, power plant tour, and listening to the opinions of 1,095

families. It was found that the number of communities in the study area agreed with the

project was quite low. This was attributed to the anxieties about the impact on their

agricultural careers and people’s health. The impact on health was expectedly resulted

from the wastewater and stack emissions from the power plant. This expectation was

arisen from previous information about the impacts of other power plants. For the sample

the groups agreed with the power plant construction had shown their reasons which

included community development, local employment, more local economic growth,

convenient infrastructure and better community services, etc.

Although the project has already specified the mitigative measures for

alleviating the potential impacts relating to its operation, a work plan on socio-economics

has also been specified in order to make the project be able to cohabitate, to have good

relationship and to share benefit with the community.

1.13 Public Relations and Public Participation

The project implementation during the construction and operating periods may

cause both positive and negative effects on the people living around the project site. In

order to make the project implementation to bring about the advantages to communities

and to reduce the negative impacts as much as possible, mitigative measures are prepared

and people participation activities have been organized in every step continually during the

course of the EIA study. The activities regarding to the public hearing during the study

period were organized to make the community leaders understand about the reasons,

necessity of the project operation as well as the procedure of the study and assessment of

environmental impact which involved public participation during the course of data

collection, information dissemination and listening to the public opinion and obtaining

suggestions from community leaders and relevant persons. Public hearing was one of the

stages opened for participants to express their opinions, anxieties, important issues or

suggestions considered to be useful for setting the mitigative measures to minimize the

social impacts, and particularly the potential environmental and social impacts during the

construction and operating phases. The stakeholders had given the opinions and

suggestions considered to be useful for the completeness of the study results had led to the


T-EIA208102 1-13 F208102-Chap1E-ADB

acceptance and participation of the local sector. The activities performed were attributed to

the cooperation of the community leaders and people in communities around the project

site who attended the meeting, and asked questions and made suggestions to the project.

The analysis and evaluation of the impacts indicated that some communities were still

anxious about the potential impacts to be result from the project. However, more than half

of the communities were aware of the necessity of energy development and the importance

of community participation in the study, monitoring of environmental impacts, watching

and control of environmental problems in the communities. These communities were

willing to act as representatives to join the monitoring and inspection of environmental

impacts. It was expected that if the work on making understanding and learning was

performed with the communities and community leaders, most community members would

eventually join the network for monitoring and inspection of environmental impacts in

communities around the project area. This was thought to also encourage the communities

to participate in any collaborations and profit sharing. All of these activities were

anticipated to lead to the continuous development of the project and acceptance from the

people living around the project site.

The environmental impact mitigation and environmental quality monitoring

measures recommended by in the EIA study were used as the basis to formulate the

environmental action plan of the project which includes all of the above-mentioned

environmental and social aspects. The outline for each aspect of the action plan comprises

such important headings as rationale, objectives, targets & activities (environmental impact

mitigative measures and environmental monitoring programs for all phases of the project),

responsible entities, report requirements and monitoring costs.

Based on the results of the EIA study, the following recommendations are

drawn for the project to consider conducting further studies and investigations:

- The project should, under all conditions, strictly enforce the implementation

of the proposed environmental measures designed for the construction and

operation phases in order to avoid or minimize both environmental and

social impacts on the surrounding communities and general public.

- The project should always conduct a preliminary environmental study when

planning to make any modification of the project design and/or the

environmental action plan to find out the environmental feasibility before

making the decision.


T-EIA208102 1-14 F208102-Chap1E-ADB

- A study should be conduct to investigate the effect of climate change on the water availability in the Pa-Sak River and the required reserve volume of raw water in the 1.6-Mm3 reservoir during the entire operation life of the proposed power plant.

- The greenhouse gas emissions from the proposed power plant should be

investigated during the operation phase. The findings from the

investigation will be a useful database for many future uses, internally and

externally.

Environmental Report for submittal to ADB Nong-Saeng Power Plant Project Chapter 2 Power Generation Supply Co., Ltd. Policy, Legal and Administrative Framework

T-EIA208102 2-1 F208102-Chap2E-ADB

Chapter 2 Policy, Legal and Administrative Framework

The environmental impact assessment report of Nong-Saeng Power Plant

Project of Power Generation Supply Co., Ltd. is prepared for the project which in turns

supports to meet the increasing demand for electricity in Thailand and industrial

development. This project is a 1,653 MW combined cycle power plant being constructed

by Power Generation Supply Co., Ltd. within the areas of 2 provinces i.e., Moo. 4, Ban

Huaiba, Nong-Kob Sub-district, Nong-Saeng District of Saraburi Province; and Moo.7,

Ban Tamsinthusopa, Nong-Namsai Sub-district, and Moo 2, Ban Klong, Kokmuang Sub-

district, Pachee District of Phra Nakhon Si Ayutthaya Province. This project can utilize

both natural gas and diesel oil as fuels. The Nong-Saeng Power Plant Project is required to

conduct the environmental impact assessment in accordance with the Notification of the

Ministry of Science, Technology and Environment which mandates that a thermal power

plant of more than 10 MW capacity shall prepare and submit the EIA report to ONEP for

approval and to Department of Industrial Works for construction permission. Therefore,

Power Generation Supply Co., Ltd. engaged SECOT Co., Ltd. to study and prepare the

environmental impact assessment report of the project. The ONEP review and approval

procedure scheme for EIA report is presented in section 2.4.

2.1 Policy, Legal, and Administrative Framework

The EIA study of Nong-Saeng Power Plant Project fully complied with

applicable Thai laws i.e. ONEP guidelines for EIA report preparation which include

environmental standards/regulations and/or recommendations of Ministry of Environmental

Resources and Environment, Ministry of Industry, Ministry of Agriculture and

Cooperatives, Ministry of Transport and Communications, and Ministry of Labor. By

doing so, the conduct of the EIA study should more or less satisfy the ADB Safeguard

Policy 2009 in the Policy and Legal Framework.

For the Natural Gas Pipeline to Nong Saeng Power Plant Project, Gulf JP NS

Co., Ltd., had assigned Entic Co., Ltd., to conduct the study and prepare the EIA report.

Because the project nature is subject to the type and size of projects under the

Enhancement and Conservation of National Environmental Quality Act, B.E.2535 which

mandates the conduct of an EIA study and present the report to ONEP for approval. The


T-EIA208102 2-2 F208102-Chap2E-ADB

conduct of EIA study was also corresponding to the conditions in the proposal for

independent power producer (IPP) submitted to and approved by the Ministry of Energy.

Legally, Gulf JP NS Co., Ltd., the Company responsible for the EIA studies and the

construction of the power plant and its associated NGP, must adopt the measures for

mitigation and monitoring of the anticipated environmental impacts during the project

construction and operation. In the case that the Gulf JP NS Co., Ltd. transfers the NGP to

PTT after completion of construction, PTT must be responsible for the environmental

mitigative measures and environmental monitoring programme during operation.

2.2 Scope of the EIA Study

This EIA report presents the description of the project, the existing

environmental conditions, and project site area and vicinity as well as the assessment of

potential environmental impacts resulting from project operation, risk assessment, public

relations and public participation, and the recommendations on environmental mitigative

measures and environmental quality monitoring programme during construction and

operation. The scope of study followed the guidelines for EIA preparation as recommended

by ONEP.

The environmental resources and values presented in this report are as follows:

(1) Physical Resources

- Topography

- Meteorology and Air Quality

- Noise Level

- Geology and Earthquake

- Soil Resources

- Surface Water Hydrology and Surface Water Quality

(2) Biological Resources

- Terrestial Ecology

- Aquatic Ecology

(3) Human Use Values

- Land Use

- Surface Water Resource Utilization


T-EIA208102 2-3 F208102-Chap2E-ADB

- Transportation

- Agriculture/Industry

- Water Usage/Power Usage and Electricity Usage

- Solid Wastes Management

- Drainage and Flood Control

- Fire Prevention

(4) Quality of Life Values

- Socio-Economics

- Public Health

- Archaic Place and Antique

- Aesthetics and Tourism

- Occupational Health and Safety

- Major Hazard Assessment

(5) Public Relations and Public Participation

The potential impacts during construction and operation were then

evaluated using the existing environmental data.

2.3 Methodology

The information used in this study included both primary and secondary

data. The primary data were those collected from monitoring, surveying and analysis

which included the following:

(1) Ambient Air Quality

(2) Noise Level

(3) Surface Water Hydrology and Surface Water Quality

(4) Terrestrial Biological Resources/Aquatic Biological Resources

(5) Traffic Volume

(6) Socio-Economics and Attitude of Community Leaders and Household

Leaders towards the Project.

The secondary data were obtained from the project proponent and concerned

governmental offices as follows:


T-EIA208102 2-4 F208102-Chap2E-ADB

(1) Meteorological Department, Ministry of Transport and Communications

(2) Department of Highways, Ministry of Transport and Communications

(3) Department of Mineral Resources, Ministry of Industry

(4) Land Development Department, Ministry of Agriculture and Co-

operatives

(5) Royal Thai Survey Department, Ministry of Defence

(6) Department of Provincial Administration

(7) Saraburi Provincial Office

(8) Phra Nakhon Si Ayutthaya Provincial Office

(9) Saraburi Provincial Public Health Office

(10) Phra Nakhon Si Ayutthaya Provincial Public Health Office

(11) Saraburi Provincial Agricultural Extension Office

(12) Phra Nakhon Si Ayutthaya Provincial Agricultural Extension Office

(13) Saraburi Provincial Industry Office

(14) Phra Nakhon Si Ayutthaya Provincial Industry Office

(15) Tourism Authority of Thailand

(16) Saraburi Provincial Town and Country Planning Office

(17) Phra Nakhon Si Ayutthaya Provincial Town and Country Planning Office

(18) Amphur Administration Office, Nong-Saeng District

(19) Amphur Administration Office, Pachee District

(20) Nong-Saeng District Public Health Office

(21) Nong-Kae District Public Health Office

(22) Phachee District Public Health Office

(23) Nong-Saeng Hospital

(24) Nong-Kae Hospital

(25) Pachee Hospital

(26) Tambon Nong-Kob Health Center

(27) Tambon Khok Sa-ad Health Center

(28) Tambon Nong-Hua-Po Health Center


T-EIA208102 2-5 F208102-Chap2E-ADB

(29) Tambon Nong-Kwai-So Health Center

(30) Tambon Khok-Toom Health Center

(31) Tambon Poan Thong Health Center

(32) Tambon Khok Muang Health Center

(33) Tambon Ra-Som Health Center

(34) Tambon Nong-Nam-Sai Health Center

(35) Tambon Don Ya Naang Health Center

2.4 ONEP EIA Review and Approval Process

The EIA report of Nong Seang Power Plant Project must be submitted to ONEP

for review and approval according to the following procedural acheme;


T-EIA208102 2-6 F208102-Chap2E-ADB

Procedure of Revised or Recorrected EIA Report for Private Projects

Project owner

ONEP ONEP reviews and submits to Board

Board of Experts for consideration

Letter of EIA Report Approval

ONEP = Office of Natural Resources and Environmental Policy and Planning

Correct EIA Report

Not approved Approved

Submit EIA Report to

30 days

Project owner

ONEP reviews report (15 days)

ONEP reviews and comments to Board (15 days)

Board of Experts report (45 days)

Letter of EIA Report Approval

Project owner revises/or corrects

the EIA report

Submit EIA Report to ONEP

Request for additional information

Submit complete report to ONEP

Not approved

Approved

Procedure of EIA Report for Private Projects

Environmental Report for submittal to ADB Nong-Saeng Power Plant Project Chapter 6 Power Generation Supply Co., Ltd. Analysis of Alternatives

T-EIA208102 6-1 F208102-Chap6E-ADB

Chapter 6

Analysis of Alternatives

PGS has conducted an analysis of alternative for the proposed power plant as

follow:

(1) With and Without Project: Electricity consumption in Thailand is

projected to increase at an average annual rate of 6% between 2007 and 2011, 5% per

annum between 2012 and 2016, and 3% from 2017 to 2021. The minimum electricity

reserve margin for the 2007 to 2021 period ranges from 15.2 to 28.1%. It is set at higher

than 23% in 2013 and 2014 to cater for uncertainties involved with purchasing power from

overseas energy resources (under negotiation) and coal fired independent power producer

Projects that might be protested by the public. A 15% reserve margin is necessary to

maintain sufficient power in the advent that one or two power plants have to undergo

maintenance or emergency repair. Insufficient electricity supply will constrain economic

development in Thailand.

(2) Alternative Fuel: Natural gas is an extremely important source of energy

in terms of reducing environmental pollution. Thus, the use of gas turbines and steam

turbines are accepted as major source of electricity generation. Particularly high

efficiencies can be achieved through combining gas turbines with a steam turbine in

combined cycle mode. Natural gas burns cleaner than other fossil fuels, such as oil and

coal, and produces less carbon dioxide per unit energy released. For an equivalent amount

of heat, burning natural gas produces about 30% less carbon dioxide than burning

petroleum and about 45% less than burning coal. Combined cycle power generation using

natural gas is thus the cleanest source of power available using fossil fuels, and this

technology is widely used wherever gas can be obtained at a reasonable cost.

(3) Alternative Location: The location of power plants is determined by the

demand and balancing of the capacity in the transmission system and water resources

locating nearby that can be sufficiently supplied for power generation process. Moreover,

location of power plant should be closed to natural gas pipeline network to achieve

reasonable cost of fuel price. For these reasons, locating the power plant in the province of

Saraburi is the best alternative as result of location that closes to the load center of

Metropolitan Bangkok i.e. the major demand location, will reduce power losses in the


T-EIA208102 6-2 F208102-Chap6E-ADB

transmission line. The site location is also closed to Pa-sak River and PTT natural gas

pipeline network, which will maximize profit to the Project

(4) Alternative Technology: Combined cycle power plants use both gas and

steam turbines to supply power to the network. A gas turbine generator generates

electricity and the waste heat is used to produce steam to generate additional electricity

through a steam turbine, which enhances the efficiency of electricity generation.

Additionally, combined cycles are characterized by flexibility, quick part-load starting,

suitability for both base-load and cyclic operation, and high efficiency over a wide range of

loads.

For the selection of land for the Nong-Saeng Power Plant Project, PGS had studied the

most appropriable information of three possibilities sites before selecting the proposed site as listed

below;


T-EIA208102 6-3 F208102-Chap6E-ADB

Consideration Issues

1st Alternative Site Nong-Saeng

2nd Alternative Site Nong-Namsai

3rd Alternative Site KK2

Technical Issues

Distance from Fuel Source

Need to construct the Gas Pipeline to connect with the Wangnoi-Kang Khoi’s Gas Pipeline for the distance of 20-25 km.

Need to construct the Gas Pipeline to connect with the Wangnoi-Kang Khoi’s Gas Pipeline for the distance of 20-25 km.

No need to place the new Gas Pipeline

Distance from Transmission Line

Transmission Line supported from Wangnoi-Tah Ta Ko’s line

Transmission Line supported from Wangnoi-Tah Ta Ko’s line

Transmission Line needs improvement (cost 3,200 Million Baht)

Distance from Water Source

13 km. away from the Pasak’s River 13 km. away from the Pasak’s River 1 km. away from Pa-Sak’s River

The stability of Water Supply Source

Water source delivering from Pa-Sak’s River and Klong Chainart

Water source delivering from Pa-Sak’s River and Klong Chainart

Water source delivering from Pa-Sak’s River

Land that needed to be cover with soil

Need site preparation(to protect flooding) Need site preparation(to protect flooding) Need site preparation (to protect flooding)

Land Access Close to Klong Rapeepat’s Rd. Close to Klong Rapeepat’s Rd. Close to Sanam Thong-Pang Go’s Rd.

Environmental Issues

Impact on Social Surrounding area fill with paddy field along the site location but quite the distance away from the community

Surrounding area fill with paddy field along the site location but quite the distance away from the community

Having the idea of buying the new site location next to KK2 as being acceptable among the local community around the area.


T-EIA208102 6-4 F208102-Chap6E-ADB





Impact on Air Quality

Lowland but not the vale hence not easy to gather air pollution

Lowland but not the vale hence not easy to gather air pollution

Surrounding with the mountain range starting from the north toward the northeast and the south. Thus, easily to cause and gather air pollution in some seasons.

Conflict for the use of Land

Most of the land site is neglected and unoccupied. Surrounding areas are the paddy with low population density.

Most of the site location land and the surrounding area were used as the paddy field. Along the area there is irrigation canal flow across. Only a small village is living nearby.

Most of the site location land were used as the agricultural area e.g. cultivate corn, soy bean, and mango. There is only small village is living nearby.

Impact on the use of water supply

PGS will intake water from Pa-Sak’s river where the Royal Irrigation Dept. takes all kind of responsibilities to manage adequate water supply for all source of activities. (where the river still have high source of water)

PGS will intake water from Pa-Sak’s river where the Royal Irrigation Dept. takes all kind of responsibilities to manage adequate water supply for all source of activities. (where the river still have high source of water)

PGS will pumping water from Pa-Sak’s river which predicted that it can enable the adequate source of water for those industrial without effecting the use of water source from agricultural site.

Impact on water quality from the water supply source

As Pa-Sak’s river has high volume for water supply hence the use of water from this source could not play any effect on its water quality.



Loss of Agricultural Area

Due to most of the areas were used as the paddy and always face flooding problems hence most of the lands were left neglected and unoccupied. Thus not effected.

Most of the lands were used as double-crop field hence the set up of PGS will truely effect the paddy field’s area and other but only effected in a lower level.

Truly effect as the site location that plan to be the land for PGS is now used as the corn field.


T-EIA208102 6-5 F208102-Chap6E-ADB





Impact on ecosystem of water source

Not much impact on ecosystem from the water source as our design technology can control the pumping speed to help those aquatic animal skip away from the pipe. Also, as the river flows and circulates consistently, this enables the plankton to autogenesis themselves in case they have been pumped into the pumping pipe.



Impact on ecosystem on terrestrial

No wild animal, animal, rare plant, etc. within the area.



Impact on archaeology

No archaeology site within the site area but surrounding temples.



Environmental Report for submittal to ADB Nong-Saeng Power Plant Project Chapter 7 Power Generation Supply Co., Ltd. Information, Disclosure, Consultation and Participation

T-EIA208102 7-1 F208102Chap7E-ADB

Chapter 7 Information, Disclosure, Consultation and Participation

7.1 Introduction

Nong-Saeng Power Plant Project is the combined cycle type being developed

in accordance with the Power Development Plan of the year 2007 responding to the

increasing power supply demand with economic growth. The Power Generation Supply

Co., Ltd., realized that the project development could not be accomplished without public

acceptance from the communities around the power plant. Consequently, several public

relation and public participation activities were conducted in order to make the acceptance

and awareness of the Nong-Saeng Power Plant Project as a part of the communities. The

operation of community participation by the Nong-Saeng Power Plant Project included

share of awareness, co-inspection and shared benefit. The activity results during the study

period will lead to the designation of the social mitigative measures during the

preconstruction, construction, and operation periods. As a result, the communities would

be confident and less anxious about the project development, so that the project and the

communities can live together in peace.

The principles of public participation of the Nong-Saeng Power Plant Project

emphasize on the process of making the people and nearby communities participate in the

process from the beginning. This aimed to make understanding, learning and improving or

changing in the constructive way for mutual benefit. It also aimed to make careful decision,

reduce conflict and make the implementation be practical. The activities followed the

guidelines for public participation and social impact assessment in the process of

environmental impact analysis specified by the Office of Natural Resources and

Environmental Planning and Policy (ONEP), and the regulation of the Office of the Prime

Minister entitled public hearing of the year 2005.

7.2 Objective

(1) To distribute information and news of the project development to

relevant governmental officers, local officers (TAO) and community leaders in order to

make them know the benefits and impacts of the project, including the mitigative measures

of the project.


T-EIA208102 7-2 F208102Chap7E-ADB

(2) To allow people, community leaders and governmental officers at

different levels participate in having opinion and recommendations on their anxiety about

the project. This would lead to the cooperation in correcting and improving of the project

development procedure and to their acceptance.

(3) To make good understanding and collaboration between the project

owner and the communities for mutual benefits at both national and community levels.

7.3 Target Group and Implementation Area

Target Group

(1) People and community leaders, and occupation groups in the vicinity

area of 5 km. radius from the Nong-Saeng Power Plant Project site.

(2) Executive/staff of local administration organizations in the study area

covering 12 subdistricts in 3 districts (Nong-Saeng, Nong-Kae and Pachee) of 2 provinces

(Saraburi and Phra Nakhon Si Ayutthaya).

(3) Heads of the relevant governmental offices in the study area (given in

(2)).

(4) Environmental conservation organizations/networks in the study area.

(5) Mass media and interested people.

Implementation Area

(1) The project location is Moo 4, Ban Huaiba, Nong-Kob Subdistrict in

Nong-Saeng District of Saraburi Province.

(2) The study areas are Nong-Kob, Nong-Kwai-So, Khok Sa-at, Nong-

Huapho Subdistricts in Nong-Saeng District, Khok Toom, Phonthong and Khotsasit

Subdistricts in Nong-Kae District of Saraburi, Nongnamsai, Donyanang, Rasom, Khok

Muang and Pachee Subdistricts in Pachee District of Phra Nakhon Si Ayutthaya.

7.4 Work Plan and Activities Performed

The public relation and public participation activities were carried out along

with the socio-economic study (Chapter 4, Topic 4.4.1). The works included

preparation/planning/public relation media production, making understanding, presentation

and getting to comments on the study, data analysis, impact evaluation and designation of

social mitigative measures. The details are as follows :


T-EIA208102 7-3 F208102Chap7E-ADB

(1) Preparation/planning/public relation media production

The Power Generation Supply Co., Ltd. realizes that the public relation

and public participation work are sensitive and are to conducted by the experts who know

how to work with the communities/localities, understand way of life and living status of

local people, have good skill in information dissemination, and are sincere and enthusiastic

to work transparently. The activities conducted in August 2007 are.

Field data collection. This is the preliminary review of the area data in

order to know the conditions of the study area in terms of social condition, living

status/way of life, nature of communities household settlement, density, number of

households in each community, communication channel and interview of preliminarily

opinion of the community leaders. The results were used for specifying the issues for

making the survey tool, work planning, and setting the population ratio for the survey. The

survey was conducted in September 2007.

Direct coordination and communication with the local communities, i.e.,

community leaders and local people. The purposes of this activity were making familiarity,

making good understanding about the project, procedure and objectives of the study and

environmental impact assessment, asking for cooperation in the project public relation and

organizing of public hearing stage.

Assignment of team or personal media for complementing the objectives.

The Power Generation Supply Co., Ltd. assigned the team being responsible for public

relation or personal media as follows:

- The 17 mass communication staff of the Power Generation Supply Co.,

Ltd. were responsible for giving information and explanation, making

understanding, being communication medium between the

communities and the project, coordinating with community leaders,

asking for cooperation in the project public relation. They worked in

the study area during the pre-study and study periods and continued

through the pre-construction, construction and operation periods.

- The public relation and public participation study team of 8 persons

from the consultant company. They were responsible for coordinating

with community leaders and local administration organization

executives, giving information and explanation, making understanding,

organizing the first public hearing meeting, organizing the power plant


T-EIA208102 7-4 F208102Chap7E-ADB

tour, organizing the second public hearing meeting, organizing the

public stage, analyzing and evaluating the implementation results. The

work was conducted during August 2007 to March 2008.

- The 10 interviewers were trained before filed working in order to have

knowledge about the project at the level that they could explain basic

information to interviewees. They worked under supervision of the

field experts in October 2007.

Activities on Public Relation and Public Participation

The public relation and public participation work was conducted along

with the socio-economic study and public opinion. The activities emphasized on giving

information, making understanding, listening to opinion and suggestions. The activities

were conducted using two-way communication during the study period. The activities on

public relation and public participation were summarized below.

- Production of public relation media for facilitating the public relation

and public participation effectively which were used for making

understanding with the target groups and disseminating the project

news to the whole study area and target groups of all levels. Two

media type used were

• Making understanding media were used for making the target

groups understand the process of electricity generation. The media

were produced in several forms which were easy to understand, i.e.,

leaflet, handbill, handout, Power Point presentation for the meeting

and evaluation form, etc.

• News agenda informing media were used for making the target

groups get the project information. Since there was plenty of time

for preparation to join the project activity, the news informing

media were produced. They included the letters asking for

cooperation from provinces, districts and local administration

organizations posters of news agenda and meeting results.


T-EIA208102 7-5 F208102Chap7E-ADB

(2) Making understanding communication

The communication for making understanding between the project and

the communities was carried out continuously during the whole study period. It was aimed

to make the project stakeholders be able to reflect their anxiety and give suggestions for

the project. It also aimed to reduce conflict, give an opportunity for the project and the

communities to be close and credible to each other. This would lead to people’s pleasure to

participate in the project in the future. The activities related to this issue were

- Individual opinion hearing was the interview of household

representatives about the socio-economic study and public opinion.

Before the interview, the interviewer explained the project information

and got the interviewee’s opinion. This activity was performed with

1,095 persons in October 2007.

- The first meeting for information informing and public opinion

hearing was organized to make understanding with the communities.

during October 28 to November 12, 2007. The attendance of 653 was

at the meeting.

- The touring of the power plants was performed during November 10,

2007 to June 15, 2008. There were 19 plant visits with 2,218 persons

joining the activity.

(3) Result presentation and opinion hearing on the study results

The activity was performed with 2 formats as follows:

- The second meeting on public opinion hearing meeting involved the

presentation of the study results and environmental measures. It was

aimed to make the communities participate in awareness and give

additional suggestions to the environmental measures given in the

report. The activity was conducted during January 20 to February 13,

2008. There were 10 stages organized with 1,005 participants.

- The meeting for informing the project information to chicken and hen

husbandry groups in Pachee and Nong-Saeng Districts was organized

to listen to and to share idea with the occupation groups who were


T-EIA208102 7-6 F208102Chap7E-ADB

anxious about the project impacts. It was conducted on February 12,

2008 with 20 participants.

- The meeting for obtaining the conclusion from Nong-Kob TAO was

organized on February 14, 2008 in the meeting room of the Nong-Kob

TAO in Nong-Saeng District of Saraburi Province. There were 28

participants.

- The public stage was organized after the meeting for obtaining the

opinion on the study results. The stage was widely opened for all

representatives of people, both in and outside the study area, to widely

give their opinion about the project. It was conducted on March 27,

2008 in the meeting hall of Nong-Saeng Wittaya School in Nong-

Saeng District of Saraburi Province. There were 1,670 attendants.

The number of the participants in the public relation and public

participation activities is summarized in Table 7.4-1.

(4) Data analysis, evaluation and designation of the social mitigative

measures.

This was to monitor and inspect the activities according to the public

hearing process. The results were analyzer and evaluated after the activities of community

leader visits, meetings and individual opinion hearings were conducted. In this study, it

was aimed to make the target groups learn and accept the project by recording the opinion,

photographs and participant registration in order that the communication for additional

data or opinion about the project would be done again. The impact evaluation was base on

the following data :

- Interview results of household representatives,

- Discussion about opinion, suggestion and questioning and answering

(Q&A) in the meeting,

- Evaluation form filling in the meeting.

The results of impact evaluation were used as the frame for setting social

mitigative results.


T-EIA208102 7-7 F208102Chap7E-ADB

Table 7.4-1

Summary of Public Relation and Public Participation Activities


No. Activity Participant (person)

1. Individual opinion hearing 1,095

2. The first public hearing meeting on 9 stages 653

3. The power plant tour of 19 rounds 2,218

4. The second public hearing meeting on 10 stages 1,005

5. The information informing meeting with the chicken and

hen husbandry groups

20

6. The meeting for obtaining the conclusion from Nong-

Kob TAO

28

7. The public stage meeting 1,670

Total Participants 6,689


T-EIA208102 7-8 F208102Chap7E-ADB

7.5 Results

7.5.1 Media preparation/public relation media production

In the public relation work of the Nong-Saeng Power Plant, the consultant

company and the Power Generation Supply Co., Ltd. emphasized on disseminating the

correct and clear information to all levels of the target groups in order to make them be

confident with the electricity generation process and the power plant operation. The

reduction of the community’s anxiety about the electricity generation process would ease

the project progress. The people in the project site could live happily and they were pleased

to participate in monitoring and inspecting the potential impacts from the project operation.

In order to reach the objectives, the consultant company and the Power Generation Supply

Co., Ltd. utilized several public relation media (as shown in Table 7.5-1) appropriate for all

target group levels. The media reaching to all target groups were

(1) Personal media are the most effective media for public relation. They can

transfer the information directly to the target groups, and make two ways communication,

during which the acknowledgment and the evaluation of the immediate response of the

target groups were obtained. They also made good relationship between the consultant

company and the Power Generation Supply Co., Ltd. There were 3 teams of personal

media for public relation as follows :

- Mass communication staff of the Power Generation Supply Co., Ltd.

were responsible for specifying the policy and planning the working

strategies for mass communication in the area during the pre-study

and study periods and the operation period. They visited, coordinated,

explained the project details and listened to opinion from executives

of several levels of administration organization in the area during the

study period.

- Technical staff and assistants on public relation and public

participation of the consultant company visited, coordinated,

explained the project details and listened to opinion from executives

of several levels of administration organization in the area for the

whole study period.


T-EIA208102 7-9 F208102Chap7E-ADB

Table 7.5-1

Summary of Media Used in Social Study and People’s Opinion


Media/Content Number Usage Target group Duration Result

Personal media 1. Mass communication

staff of the Power Generation Supply Co., Ltd.

17 persons

- Policy setting - Strategy planning

All levels Already performed in the area.

- The target groups understood the project.

- The communities cooperated with the project.

2. The consultant company

8 persons

- Giving and explaining the project information.

- Organizing the meeting.

Office/ organization/leaders

The whole study period.

- Office/organization/ leaders got the project details and

cooperated in giving information to the communities.

3. Interviewer 10 persons

- Giving the project information.

- Opinion survey using questionnaires

Households - The communities understood and accepted the project

- The response and needs of the communities were known.

Understanding establishment media 1. Leaflet of the study

and environmental impact assessment of the Nong-Saeng Power Plant.

3,000 sets

- Being distributed at the public hearing meeting.

- Giving to the interviewees.

All levels The whole study period.

- People/communities in the study area were informed about the project information and the guidelines of environmental impact assessment.

2. Leaflet of the knowledge about electricity generation and natural gas.

3,000 sets

- Being distributed at the public hearing meeting

- Giving to the interviewees

All levels The whole study period.

- People/communities in the study area were informed about the project information, safe electricity generation process and clean fuels.

3. Power point presenting the details/ characteristics of the project, procedure, the study, etc.

2 sets - Being Presented in the public hearing meeting.

Community leader/chief/ executive/ organization

- Establishing the understanding of the participants.


T-EIA208102 7-10 F208102Chap7E-ADB

Table 7.5-1 (Cont’d)

Media/Content Number Usage Target

Group Duration Result

Information informing media

1. Letter for cooperation.

- - Coordinating in working.

Chiefs of

offices at

provincial/

district/local

administra -

tion

organization

levels

Before

organizing

all stages

of the

public

hearing.

- Good cooperation was achieved for working.

- Data and useful suggestion for working were obtained.

2. Meeting agenda placard

15 sets - Informing of the meeting agenda 15 days in advance.

All target

groups.

15 days

before the

meeting

- People/interested persons could attend the meeting at all stages.

3. Meeting minute placard

15 sets - Minutes of the first and the second meetings.

All target

groups.

15 days

after the

meeting

- People/interested persons knew many issues and answers/corrective measures obtained from the meeting.


T-EIA208102 7-11 F208102Chap7E-ADB

- The 10 interviewers elucidated, publicized, explained the project

details and replied the questions before interviewing household

representatives. This made the interviewees have more knowledge and

understanding about the project.

(2) Documental media. The consultant company and the Power Generation

Supply Co., Ltd. produced several media forms with a sufficient quantity for distributing to

the target groups over the study area. The media included the following :

- The 3,000 sets on leaflet on the study and assessment of

environmental impacts of the Nong-Saeng Power Plant project were

distributed to the communities and information providers on socio-

economics.

- The leaflets on knowledge about power generation and natural gas

were distributed to all meeting attendances, the communities and

information providers on socio-economics.

- Placards of meeting agenda for public hearing were posted at public

relation boards in governmental offices and local administration

organizations at least at least 15 days before the public hearing

meeting.

- Placards of the minutes of the public hearing meeting were posted at

the public relation boards in Nong-Saeng, Nong-Kae and Pachee

District Offices and in TAOs/municipalities in the study area.

- The Power Point presentation used in the meeting.

- Questionnaires on socio-economics and people’s opinion.

7.5.2 Communication for making understanding with offices/organization/

communities/people (First public hearing)

The activities included the survey on socio-economics and people’s opinion,

the first informing meeting and public hearing and the study tour of the existing power

plants. The results were summarized bellows.

(1) Opinion hearing of each household.

In the survey on socio-economics and people’s opinion, the study team

had trained the interviewers so that they had knowledge and understanding about the

project enough for explaining the basic project information to the household


T-EIA208102 7-12 F208102Chap7E-ADB

representatives. It was aimed to make the interviewees have sufficient information before

making decision and giving suggestion to the project. Before interviewing, the staff handed

in the public relation media of the project, e.g., leaflets and explained about reasons and

requirement, objectives, important issues, project nature, project site, products/ outcome,

benefit and impacts of the project to the interviewees. The interviewees were allowed to

ask questions, give information and express their opinion openly. The interview using the

questionnaire was conducted in October 2007. There were 1,095 household representatives

who expressed their opinion via the questionnaire.

(2) Organizing the informing meeting and public hearing

The informing meeting and public hearing about the study on

environmental impact assessment (EIA) were the activities for making the community

leaders understand the reasons and necessity for the project operation the study

methodology of EIA which requested for public participation. The participation was

needed in many steps such as, data collection, dissemination of opinion hearing

information and suggestion of community leaders and related persons. The public hearing

was the stage opened for participants to express their ideas, relevant issues or suggestion of

communities which were useful for assigning social mitigative measures. Furthermore, the

informing meeting and public hearing organized for the communities and relevant persons

widely extended the understanding and acceptance of the study results and EIA to the

community members. The public hearing was thus organized under the following

objectives :

- To explain the project details to the community leaders and relate

persons about the guideline/steps of the study and EIA so that they

understood and realized the importance of public participation in the

project study.

- To allow the community leaders and related persons to participate in

opinion expression about the environmental mitigative measures, to be

willing or pleased to join the study and assessment of environmental

impacts, and to participate in monitoring/inspecting of the

environmental impacts.

- To ask for cooperation from the community leaders in the survey on

socio-economic status and people’s opinion.


T-EIA208102 7-13 F208102Chap7E-ADB

Schedule, place, media and participant number

The place for organizing the activity on community opinion hearing was

based on the area within 5 kilometer radius of the project site. The area covered the

communities in 12 subdistricts. The activity was carried out on October 28 to November

12, 2007. There were 9 stages organized with 653 participants as shown in Table 7.5-2.

- The meeting supplementary media were provided for the meeting. The

media examples shown in Appendix VI were

• The documents for project presentation consisted of reasons,

necessity, objectives, nature of the Nong-Saeng Power Plant and

study methodology of the project.

• The power point media used for presentation via a computer

consisted of reasons and necessity of the project, summary of the

project description of the combined cycle power generation,

objectives, procedure and methodology of the study and assessment

of environmental impacts and public participation.

- For the meeting agenda, the public hearing was divided into 2 sessions

as to give the information on the project background and to brainstorm

the opinion/suggestion of the participants. The public hearing activity

performed was summarized as follows :

• To explain the project description in order to make understanding

of the public hearing participants. The content of the explanation

emphasized on the 3 issues as follows :

: Project background

: Study and assessment of social impacts

: Electricity generation process and environmental mitigative

measures of the Nong-Saeng Power Plant project.

• To answer questions and to brainstorm the opinion of the

participants after the presentation of the project information. The

community leaders and participants were allowed to ask questions

about any unclear issues. This was to make correct knowledge and

understanding, and to get anxiety issues and suggestions which

were useful for the study and EIA of the project.


T-EIA208102 7-14 F208102Chap7E-ADB

Table 7.5-2

Date/Time, Place and Number of Participants in the First Public Hearing

of the Nong-Saeng Power Plant Project

Date/Time Place Participants Number (Persons)

Oct 28, 2007 03.00-06.00 p.m.

Nong-Kob and Nong-Kwai-So Sub-districts, at Wat Nong-Tangbun of Nong-Kob Sub-district in Nong-Saeng District of Saraburi Province

- Chief executive of the Nong-Kob TAO

- Community leaders - Local people

142

Oct 29, 2007 03.00-06.00 p.m.

Khok Sa-at and Nonghuapho Sub-districts, at Wat Ngew-ngarm of Khok Sa-at Sub-district in Nong-Saeng District of Saraburi Province

- Chief executives of the Khok Sa-at and Nonghuapho TAOs


53

Oct 30, 2007 09.00-12.00 a.m.

Khotsasit Sub-district, at Khotsasit MD in Nong-Kae District of Saraburi Province

- Mayor of the Khotsasit MD - Community leaders

20

Nov 2, 2007 03.00-06.00 p.m.

Rasom Sub-district, at Wat Rakhen of Rasom Sub-district in Pachee District of Phra Nakhon Si Ayutthaya Province

- Chief executive of the Rasom TAO


75

Nov 4, 2007 03.00-06.00 p.m.

Nong-Namsai Sub-district, at Nong-Namsai TAO in Pachee District of Phra Nakhon Si Ayutthaya Province


36

Nov 5, 2007 09.00-12.00 p.m.

Pachee MD, at Pachee District Office in Phra Nakhon Si Ayutthaya Province

- Mayor of the Pachee MD - Deputy mayor of the Pachee MD - Municipal clerk of the Pachee

MD - Community leaders and people in

the area

38

Nov 5, 2007 03.00-06.00 p.m.

Khok Toom and Phonthong Sub-districts, at the civil defense volunteer center of Khok Toom Sub-district in Nong-Kae District of Saraburi Province

- Mayor of the Khok tpom MD - Municipal of the Khok Toom

MD - Community leaders and people in

the area

164

Nov 7, 2007 09.00-12.00 p.m.

Khok Muang Sub-district, at Khok Muang TAO in Pachee District of Phra Nakhon Si Ayutthaya Province

- Chief executive of the Khok Muang TAO, community leaders

- Local people

94

Nov 12, 2007 09.00-12.00 p.m.

Donyanang Sub-district, at Wat Wimolsoonthorn in Pachee District of Phra Nakhon Si Ayutthaya Province

- Chief executive of the Donyanang TAO

- Community leaders - Local People

31

Total 9 stages Total participants 653


T-EIA208102 7-15 F208102Chap7E-ADB

Results of Q&A/suggestion in the meeting

From the 9 public hearing stages, several issues raised by the participants

were summarized in Table 7.5-3.

Results of questionnaire response in the meeting

In all public hearing stages, apart from the Q&A, the participants were

asked to answer the questionnaire in order to get their opinion about the project. Out of 653

participants in 9 stages, there were 381 persons (58.4%) replying the questionnaire. The

details of the evaluation given in Appendix VI were summarized as follows :

Part 1: For general information of the respondents, most of them (61.2%)

were male with age of 31-60 years old. Most of them finished elementary schools and were

agricultures (24.7%). The second most ones were local administrator/officer/executive of

local administration organization or governmental officers of several offices.

Part 2: Knowledge, understanding and receiving of the project news.

Regarding the project information receiving, it was found that most of respondents (51.4%)

did not know about the project information beforehand. Some of them (49.7%) got the

information from local leaders/TAO/MD, from the project staff (15.6%), and from family

members/friends (14.5%).

For the levels of the knowledge and understanding about the project, it

was found that most respondents (29.1%) had knowledge and understanding about the

project at the low level. But after the public meeting, they (35.4%) had more knowledge

and understanding about the project at the moderate level. It was implied that the public

meeting made people to have more knowledge and understanding about the project.

Moreover, most respondents needed additional project information,

particularly on the environmental impacts of the project. The project could send the

information via group or community leaders (54.9%), a meeting (29.6%), and posting on

the board in the governmental offices (14.8%).

Part 3: Public participation and comments on the project. The

respondents expressed their opinion about advantages or impacts of the project to public.

Most of them commented that the project had both benefit and impacts (25.2%). The

second most saw that the project had more benefit than drawback (17.3%). In contrast, few

did not see any advantages of the project (0.8%).


T-EIA208102 7-16 F208102Chap7E-ADB

Table 7.5-3

Summary of Q&A Issues and Suggestions from the Public Hearing Stages

Nong-Saeng Power Plant Project Group Area Concern Issue Suggestion

1 Nong-Kob and Nong-Kwai-So Sub-districts

- The concern issue was inconclusive. Some community leaders asked for change of the project details presentation format and the public hearing procedure.

- The community leaders suggested that the meeting be organized in all villages in order to explain the project details with longer time for explanation. They needed 2 weeks for discussion among the villages in the sub-districts.

- The head of the public health center suggested a study tour at a power plant similar to that to be constructed in Nong-Saeng in order to learn about the actual impacts, and mitigative measure.

2 Khok Sa-at and Nong-Huapho Sub-districts

- The impact of the effluent discharged from the power plant on the communities, especially on agriculture.

- The impacts of the power plant on daily life of villagers.

- The impacts on drinking water and water for sanitary uses of villagers.

- The impacts on traffic and road condition.

- To request the power plant openly and clearly disclose the information both positively and negatively in details to the communities.

- To use solar cell had to for power generation instead of natural gas.

3 Khotsasit Sub-district

- The reasons for selecting this area as the power plant site.

- After the plant was operated for a while, would the power plant use

other fuels rather than natural gas?

- Would de-ionized water affect

agriculture, fishery and tourism? - Would The water consumption of the

power plant affect the agricultural

sector?

- To request that the power plant to clearly and frankly disclose the information.

- The effluent from the power plant should be discharged to other canals, not Klong Rapeepatana.


T-EIA208102 7-17 F208102Chap7E-ADB

Table 7.5-3 (Cont’d) Group Area Concern Issue Suggestion

4 Rasom Sub-district

- No concern. - More negative impacts and details of information should be presented e.g., loud noise level, carbon content etc. These pieces of information would be taken into consideration.

5 Nong-Namsai Sub-district

- Would the power plant use other fuels

instead of natural gas? - Would the noise level generated by

the power plant exceed the standard ? - The project site was the rice farming

area rented by some farmers. When it was purchased for power plant construction, those farmers would have no farming lands.

- How safe were the gas pipelines?

- During construction period, the roads would be damaged. How would the company manage this problem?

- How many the safety systems were there?

- No suggestion

6 Pachee Sub-district

- What advantage would the community get from the power plant?

- Would this power plant cause the global warming?

- Impacts of water on agricultural sector.

- Would air pollution from the power plant affect pregnant women and children?

- The effluent should be discharged by other means, not to Klong Rapeepatana.

- A tour of the similar power plants should be arrange in order to make understanding about a power plant.

- It was suggested to inform or publicize the channels for information inquiry or complaints about the power plant, e.g., telephone number, etc.

7 Khok Toom and Phonthong Sub-districts

- Various impacts of the power plant. - Would the light generated from the

power plant affect agricultural crops? - How many local people have a

chance to be employed by the power plant?

- No suggestion.


T-EIA208102 7-18 F208102Chap7E-ADB

Table 7.5-3 (Cont’d) Group Area Concern Issue Suggestion

8 Khok Muang Sub-district

- Impacts of the effluent discharged from the power plant.

- Impacts of air emissions from the power plant

- Impacts on agricultural crops. - Impacts of noise generated from the high voltage transmission line. - Noise impacts on poultry as there

were hen farms nearby the plant. - Would the power plant increase the

ambient air temperature? - Would the power substation affect

receiving signal of the household

appliances?

- Water management of the power plant as there was water shortage in the dry season.

- A tour of the existing power plants should had to be organized.

- The power plant should give priority to local people for employment.

9 Donyanang Sub-district

- Impacts on water consumption and effluent discharged from the power plant.

- Impacts of air emissions from the power plant.

- Would the power plant change the

fuel to be coal? - In the study tour of a power plant,

only good images would be presented.

- A tour of the existing power plants should be organized.


T-EIA208102 7-19 F208102Chap7E-ADB

For the opinion about benefit or impacts of the project on the

environmental condition in the area or on the local people, most respondents agreed that

the project had both benefit and impacts (22.3%). The second most did not give any

comments (17.6%). In contrast, few did not see any advantages of the project (0.7%).

For the whole figure, most respondents agreed that the project had to be

implemented as planned (33.3%). The second most did not give any comments (32.8%). In

contrast, a few told that the project should not be implemented (16.8%).

Part 4: Opinion and suggestion about the project. The opinion/

suggestion of the respondents about the project were summarized below.

- The project should be carried on for country development, but

environmental impacts were to be realized.

- The environmental impacts of the project should be studied and

assessed before/during/after the project operation and the study results

were to be presented to the communities.

- Sufficient mitigative measures for environmental impacts were to be

provided with life quality of communities taken into account.

- To publicize all news/information to all relevant parties and to have

regular meetings.

- To construct an alternative safer power plant, for example, the power

generation using solar cells, etc.

- To organize a tour of a power plant similar to the plant to be

constructed and operated.

- To take public benefit into account, particularly; the fund allocation to

be fair and beneficial to the communities.

(3) Organization of a study tour of the other existing power plants

After the public hearing, it was found that people in the study area had

little understanding about the project and there were concerns about the project at high

level. The Power Generation Supply Co., Ltd. organized the tour to visit the other existing

power plants in order to make the people in the study area have experience and understand

the operation details of the same or similar projects to be constructed in the area. It was

also to make people understand the problems and corrective measures and mitigation of

real practice. In the tour, heads of the governmental offices, community leaders and

household representatives visited the Kaeng Khoi 2 Power Plant and the other plants using


T-EIA208102 7-20 F208102Chap7E-ADB

natural gas as fuel and of the same size of Nong-Saeng Power Plant. The tour was

organized during November 10, 2007-June 15, 2008 for 19 trips with a total of 2,218

participants. The summary is presented in Table 7.5-4.

Order of the power plant tour

In order to make the tour members see the real picture and understand the

power generation process of the project, they were taken to visit the control room, air

monitoring station, stack, water treatment system and cooling tower. During the visit, there

were explanation and Q&A for making the tour members understand what they saw.

After touring, the tour members attended the lecture in a meeting room.

The lecture was related to the whole figure of the production process. This was to reinforce

their understanding. The presentation of the study and assessment of environmental

impacts of the project, including environmental measures was given. The final session was

for Q&A and opinion sharing of the tour members. The important issues from the meeting

were summarized in Table 7.5-5.

7.5.3 Presentation of the Study results and public hearing about

environmental measures (Second public hearing)

The study results of this part included the presentation and hearing of opinion

about social mitigative measures (The second time) and organization of public stage for

listening to people’s opinion. The results are as follows :

(1) Presentation and listening to opinion about the study results and

environmental measures.

The meeting activity for presentation and public hearing about the study

and EIA was to present the study results which are included in the EIA report before

starting the project. To obtain the opinion and suggestion from community leaders and

related persons led to information distribution to community members, making

understanding and acceptance of the study result and EIA. Thus the activity was organized

with the following objectives :

- To present the project details.

- To present the existing environmental resources of the project site and

its vicinity area which were potentially affected directly and indirectly

by the project.


T-EIA208102 7-21 F208102Chap7E-ADB

Table 7.5-4

Participants of the Tour to the Existing Power Plants

Date Place Participant Number

(person)

Nov 10, 2007 Kaengkoi 2 Power

Plant

- Community leaders and villager representatives of

Khok Sa-at, Nong-Kwai-So and Nong-Huapho

Sub-districts.

27


Plant


Nong-Kob Sub-district.

47


Plant


Nong-Kwai-So Sub-district.

58


Plant


Nong-Kob, Nong-Lua and Nong-Tangbun Sub-districts.

87


Plant


Nong-Kob, Nong-Lua and Nong-Tangbun Sub-districts.

60

Jan 31, 2008 Kaengkoi 2 Power

Plant

- Teachers and students of Nong-Saeng Wittaya School

of Saraburi Province.

216

Feb 3, 2008 Kaengkoi 2 Power

Plant


Nong-Namsai and Donyanang Sub-districts.

225


Plant


Khok Muang and Pachee Sub-districts.

153

- Teachers and students of Pachee School and Donkhoi

School in Pachee District of Phra Nakhon Si

Ayutthaya Province.

71


Plant

- Poultry farming groups of Pachee and Nong-Namsai

Sub-districts.

20


Plant


Khotsasit Sub-district.

117


Plant


Nong-Namsai Sub-district.

120

Mar 11, 2008 Kaengkoi 2 Power

Plant


Pachee Sub-district.

43

Mar 22-23,

2008

Kaengkoi 2 Power

Plant


Nong-Kob, Nong-Kwai-So, Khok Sa-at and Nong-

Huapho Sub-districts.

109


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Table 7.5-4 (Cont’d) Date Place Participant Number

(person)

Mar 22-23,

2008

Wangnoi Power

Plant/

Rayong Power

Plant/

Bangpakong

Power Plant


Nong-Kob, Nong-Kwai-So, Khok Sa-at and Nong-

Huapho Sub-districts in Nong-Saeng District.

110

Apr 30-May 1,

2008

Wangnoi Power

Plant/

Rayong Power

Plant


Nong-Namsai, Khok Muang and Rasom Sub-districts

in Pachee District.

151

May 3-4, 2008 Wangnoi Power

Plant/

Rayong Power

Plant


Pachee and Donyanang Sub-districts in Pachee

District.

157

May 17-18,

2008

Wangnoi Power

Plant/

Rayong Power

Plant


Nong-Kob and Nong Kwai-So Sub-districts

148

May 31- Jun 1,

2008

Wangnoi Power

Plant/

Rayong Power

Plant


Khok Toom and Phonthong Sub-districts.

157

Jun 14-15, 2008 Kaengkoi 2 Power

Plant/Wangnoi

Power Plant

- Community leaders of Rasom, Khok Muang,

Baanheep, Sambandit and Nongmaisung Sub-districts

in Uthai District of Phra Nakhon Si Ayutthaya.

142

Total 19 trips Total participants 2,218


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Table 7.5-5

Summary of Concern Issues, Suggestions and Corrective Method

of the Tour Group. Concern Issue Corrective Method/Environmental Mitigative Measures

- After the power plant is

operated, will the power plant

change to use other fuels?

- This power plant is designed to use only natural gas and diesel oil

and the license allows the plant to use only these two fuels.

- When diesel oil is used, as

backup fuel, will it cause the

odor impact?

- No odor problem is generated since the production system of the

power plant is designed as a closed-system.

- The quantity of pollutants in the stack emission must comply with

the standards of the related agencies.

- Does the magnetic field or

electromagnetic wave affect

electrical appliances and

people’s health?

- The previous study reported that there existed electromagnetic

wave under the 500 kV transmission line. Thus the power plant will

lay the grid networks underground within its area so the magnetic

field problem in the surrounding area will be reduced.

- Where is the water intake and

discharge? Does it affect the

agricultural sector?

- The water is pumped at the upstream of the Rama VI Dam and

stored for use in the dry season. So the plant will not compete for

water with people.

- The water is discharged to Huaiba (Klong Nong-Ngu-loem).

- Impact of foundation pile

hammering during construction

period

- The construction activity generating loud noise, e.g., foundation

pile hammering, etc., is to be conducted only in the daytime

(between 07.00 am.-18.00 pm.), be informed to communities and

officers of relevant offices at least 1 week before construction.

- It is necessary that the subcontractors must install a noise absorber

on loud noise generating machines used in the construction.

- Impact of noise generated from

the cooling towers of the power

plant

- The loud noise was heard in the area surrounding the cooling

towers only. No impact is imposed on the communities around the

power plant.

- Will the power plant discharge

the pollutants at night?

- No, the quantity of stack emissions from the power plant shall

comply with the standard of the related agencies.

- Will there be downstream

industries in the area?

- The power plant cannot sell electricity to other industries except to

the Electricity Generation Authority of Thailand only.

- Why this area is selected for

the power plant construction?

- There are 3 factors for power plant site selection;

1) near the transmission line

2) near water resources

3) near natural gas pipelines


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Table 7.5-5 (Continued) Concern issue Corrective Method/Environmental Mitigative Measures

- Will noise affect chickens? - In test run/construction periods, the loud noise is generated from

foundation pile hammering and stream pipeline cleaning. However,

there are noise protection equipments, and the operation time is

limited at 18.00 pm. The noise is generated for some times only.

- The test run plan is to be announced to people in advance.

- The poultry farm database in the area will be made in order to

assign the responsibility and damage compensation properly and

appropriately.

- There is a community development fund in the vicinity area of the

power plant.

- Is rain water drinkable? - If the rain water is drinkable at present, it will also be drinkable

when the power plant exists.

- The stack emissions from the power plant are controlled to be in

compliance with the standard of the relevant organizations.

Remark: At present, the Nong-Saeng Power Plant project is designed to recycle water for uses as much

as possible. The wastewater generated to be discharge is the effluent from the cooling towers

only. The other wastewater such as the sanitary wastewater from the offices and chemical

contaminated wastewater are treated and recycled. Some wastewater is treated by using high

quality treatment system, e.g., thermal evaporation, which can recycle the whole effluent. The

solid wastes is the residue in the final stage which is to be disposed according to the regulation

of the Ministry of Industry entitled Disposal of Sewage and Unused Materials, B.E.2548.


T-EIA208102 7-25 F208102Chap7E-ADB

- To present the impact evaluation of the project both qualitatively and

quantitatively for each issue during the construction and operation

periods. The positive and negative impacts of the project were

assessed.

- To present the environmental mitigative measures for construction and

operation periods in order to reduce the impacts as much as possible.

- To present the monitoring programme of environmental quality. This

aimed to have surveillance of the implementation of the purposed

mitigative masures.

- To obtain the opinion-suggestion and to answer the questions about

the project asked by participants.

Schedule/place/media and participants

- The places for the public hearing activity of the communities were

selected from the area within the radius of 5 kilometers from the

project. The area covered 12 subdistricts in 3 districts of 2 provinces.

There were 10 meeting stages with 1,005 participants, as shown in

Table 7.5-6.

- The media for meeting supplements included the following :

• Project presentation documents which consisted of the project

background, project details, methodology of study and EIA report

preparation, conclusion of the existing environmental conditions,

environmental impact assessment, environmental mitigative

measures and monitoring programme of environmental quality.

• Illustration and presentation by power point presentation containing

the project background, work plan, project size and location,

capacity, electricity generation process, fuel utilization, raw water

resource, water supply system, wastewater and wastewater

treatment system, air pollution control system, solid wastes

management, study results and EIA, environmental mitigative

measures, and monitoring programme of environmental quality.


T-EIA208102 7-26 F208102Chap7E-ADB

Table 7.5-6

The Meeting for Result Presentation and the Second Public Hearing


Date/Time Place Participant Number

(person)

Jan 20, 2008

03.00-06.00 p.m.

Nong-Namsai Sub-district at Nong-Namsai

TAO, Pachee District of Phra Nakhon Si

Ayutthaya Province

- Community leaders

- Local people

117

Jan 21, 2008

09.00-12.00 a.m.

Donyanang Sub-district at Wat

Wimolsoonthorn, Donyanang Subdistrict,

Pachee District of Phra Nakhon Si Ayutthaya

Province

- Community leaders

- Local people

64

Jan 22, 2008

09.00-12.00 a.m.

Nong-Huapho Sub-district at Ban

Khoksamor, Nong-Saeng District of Saraburi

Province

- Community leaders

- Local people

42

Jan 23, 2008

09.00-12.00 a.m.

Khok Muang Sub-district at Khok Muang

TAO, Pachee district of Phra Nakhon Si

Ayutthaya Province

- Community leaders

- Local people

68

Jan 26, 2008

05.00-07.00 p.m.

Khok Toom and Phonthong Sub-districts at

Wat Suntiwiharn, Khok Toom Sub-district,

Nong-Saeng District of Saraburi Province

- Community leaders

- Local people

129

Jan 27, 2008

03.00-06.00 p.m.

Rasom Sub-district at Wat Rakhen, Rasom

Subdistrict, Pachee District of Phra Nakhon

Si Ayutthaya Province

- Community leaders

- Local people

102

Jan 29, 2008

09.00-12.00 a.m.

Khok Sa-at Sub-district at Wat Ngew-ngarm,

Khok Sa-at Sub-district, Nong-Saeng District

of Saraburi Province

- Community leaders

- Local people

49

Jan 30, 2008

9.00-12.00 a.m.

Kotchasit Sub-district at Kotchasit MD,

Nong-Kae District of Saraburi Province

- Community leaders

- Local people

151

Feb 2, 2008

03.00-06.00 p.m.

Nong-Kob and Nong-Kwai-So Sub-districts

at Wat Nong-Kob, Nong-Kob Sub-district,

Nong-Saeng District of Saraburi Province

- Community leaders

- Local people

215

Feb 13, 2008

09.00-12.00 a.m.

Pachee Sub-district at Pachee District Office

of Phra Nakhon Si Ayutthaya Province

- Community leaders

- Local people

68

Total 10 stages Total participants 1,005


T-EIA208102 7-27 F208102Chap7E-ADB

Order of the meeting

The meeting for presentation of the study results and for obtaining

opinion about the study results and EIA was divided into 4 parts by activity nature as

follows :

- Meeting opening speech.

- Presentation of the project details, and the study results and EIA.

- Listening to opinion/suggestion from participants.

- Conclusion and closing speech.

Answering questions and brainstorming from participants

In every meeting stage, after presentation of the project details and the

study results, the participants were allowed to ask questions, express their concerns and

give useful suggestion for revising the of environmental measures of the project. The

consultant company accompanying with the Power Generation Supply Co., Ltd. to answer

the questions. Summary of the important issues is given in Table 7.5-7.

Results of questionnaire answering in the meeting

In every meeting stage, apart from asking questions, the participants

filled in a questionnaire. This was to reflect their opinion and to give suggestion about

environmental mitigative measures proposed in the EIA. In the second public hearing of 10

stages, there were 505 out of 1,005 participants (52.4%) answered the questionnaire. The

detail of evaluation results, given in Appendix VI are summarized below.

- Physical environmental resource issue

• Measures for air quality and particulates

: During construction period, most of respondents (61.8%) told

that the measures were sufficient. However, most participants

from Pachee and Khok Sa-at, and Nong-Huapho Sub-districts

(62.2% and 60.0%, respectively) had no comments.

: During operation period, most of respondents (61.6%) thought

that the measures were sufficient. Most participants from Khok

Sa-at and Nong-Huapho, and Pachee Sub-districts (70.0% and

62.2%, respectively) had no comments.

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Table 7.5-7

Summary of Concern Issues, Corrective Method and Suggestion from the Second Public Hearing


Stage Area Concern Issue Corrective Method / Environmental Mitigative Measures Suggestion from

Participants

1. Nong-

Namsai

Sub-district

- Does sulfur dioxide emission

from the stack have any

impacts?

- The quantity of stack emissions discharged from the power plant will be

strictly enforced under the regulation.

- From the study, it was found that after the power plant operation, the SO2

and NO2 concentrations in the ambient air were lower than the standard.

The particulates emission from the power plant was very low.

- The power plant

tour should be

organized and the

experts (not the

power plant staff)

explain the

information of the

power plant.

- Why is this area selected for

power plant construction?

- There are 3 factors for the power plant site selection including 1) near the

power transmission line, 2) near water resources and 3) near natural gas

pipelines.

- Does the effluent affect the

people and agriculture?

- The effluent quality was controlled according to the Order of Department

of Irrigation No.883/2532 (1989) entitled “Prevention and resolution for

drainage of low quality water to irrigation canals and other canals joint to

them in the irrigation zones”. By this standard, the effluent drained from

the power plant does not affect the people and agricultural crops.

- The effluent quality monitoring station will be installed. If the drained

effluent quality exceeds the standard, the valve will be automatically

turned off so that the effluent cannot be drained to the outside, but

retreated until its quality is in compliance.

- In case of natural gas shortage,

which fuel will be used in

electricity generation?

- This power plant is designed to use natural gas as main fuel and diesel oil

as backup fuel. The power plant will be shut down if the natural gas is

run out.

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participants

1. Nong-

Namsai

Sub-district

(Cont’d)

- There is a contract of natural gas purchasing among 3 organizations, i.e.,

the power plant, PTT (Public) Co., Ltd. and EGAT. It is hardly to change

the fuel.

- Is there noise pollution? Does

heat generated from the power

plant have impacts?

- Noise pollution

• During construction period, the assessment revealed that the sound

pressure levels at Wat Thammasinsopha and houses next to the project

fence exceeded the standard. Therefore, the mitigative measure will be

assigned.

• During operation period, the assessment revealed that the sound

pressure levels were predicted to be lower than the standard. The noise

annoyance might occur occasionally. Therefore, the mitigative

measure will be assigned.

• The important measures include the installation of noise adsorbents,

installing of the noisy machines in the noise adsorbent buildings and

installation of enclosure, ect.

- Heat is mainly generated at the stack of the power plant. The heat is

buoyant and its temperature is reduced and dissipated by wind current.

This does not cause sensible temperature change.

- What will Nong-Namsai people

get from the power plant?

- They will get money allocated to the local community via

• Property and machinery taxes.

• Value added taxes of gas purchasing from PTT and electricity sale to

EGAT.

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participants

1. Nong-

Namsai

Sub-district

(Cont’d)

- The community development fund was founded in the plant vicinity area

(during construction and operation periods). This is the pay back to the

communities that sacrifice the area for the power plant.

- The community utilities are improved.

- The economic system is stimulated continuously in the communities.

- Will local people be employed?

What kind of jobs and how

many?

- For the recruitment by examination, if the locals have scores higher or

lower but close to that of the candidates from outside, the locals will get

the priority. However, in the case of too low scores, the locals will be refused due to security and safety of the power plant.

- There are approximately 70 permanent staff.

2. Donyanang

Sub-district

- Where does the power plant

discharge the effluent?

- The effluent is discharged into Rapeepat Canal in front of the project site.

The pH values, conductivity, free chlorine and temperature of the effluent

were controlled to comply with the standard of the governmental office.

No comments

- Does the water consumption of

the power plant affect the people

and rice farming?




them in the irrigation zones”. Regarding this standard, the effluent

drained from the power plant does not affect the people and agricultural

crops.





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participants

2. Donyanang Sub-district

- The power plant will construct a water well of 1.6 million cubic meter

capacity, which can be used for 30 days without taking water from other

natural water resources. This will not affect water utilization of people. In

case of water shortage, the Department of Irrigation will order the power

plant to stop pumping water.

- What benefits will people get

from the power plant?

- The money allocated to the local communities are obtained from


• Value added taxes of gas purchasing from PTT and electricity sale to

EGAT.

- The community development fund was founded in plant vicinity area.

(during construction and operation periods). This is the pay back to the

communities that sacrifice the area for the power plant.


- The economic system is stimulated continuously in the communities.

- For water in the Rapeepat Canal,

will it cause itching when it is

used by villagers?




them in the irrigation zones”. By this standard, the effluent drained from

the power plant does not affect the people and agricultural crops.

- The effluent quality monitoring station will be intalled. If the drained


turned off so that the effluent cannot be drained to the outside, but retreated until its quality is in compliance.

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participants

2. Donyanang Sub-district (Cont’d)

- How is the fund allocated to each village?

- It depends on consideration of the fund committee. - The fund committee consists of the representatives of villagers in the area

of 5 kilometers radius from the project, representatives of governmental sectors and the power plant. The number of villager representatives is more than a half of total committee members.

3. Khok Muang Sub-district

- Why is the treated effluent not reused in the power plant? Has the treated effluent been used for agricultural experiment?*

- When the water is used in several processes, its temperature is changed and the minerals in water become scaling as found in vehicle radiators. The scaling is hard to be removed. Thus the power plant has studied about how many cycles the water can be used (4 cycles) before being treated to comply with the standard of the governmental office prior to discharge.

- A demonstrated rice field should be set up in the area around the power plant.

- The electricity fee for the people living in the area within the radius of 5 kilometers should be waived.

- What is the pH value of the discharge effluent?

- The pH value of the effluent is controlled to be 6.5-8.5 according to the Order of Department of Irrigation No.883/2532 (1989) entitled “Prevention and resolution for drainage of low quality water to irrigation canals and other canals joint to them in the irrigation zones”. By this standard, the discharged effluent from the power plant will not affect general water consumption.

- Does the power plant impose the impacts on water quality and air quality?

- The pH value of the effluent is controlled to be 6.5-8.5 according to the Order of Department of Irrigation No.883/2532 (1989) entitled “Prevention and resolution for drainage of low quality water to irrigation canals and other canals joint to them in the irrigation zones”.

Remark: At present, the Nong-Saeng Power Plant project is designed to recycle water for uses as much as possible. The wastewater generated to be discharge is the effluent from the cooling towers only. The other wastewater such as the sanitary wastewater from the offices and chemical contaminated wastewater are treated and recycled. Some wastewater is treated by using high quality treatment system, e.g., thermal evaporation, which can recycle the whole effluent. The solid wastes is the residue in the final stage which is to be disposed according to the regulation of the Ministry of Industry entitled Disposal of Sewage and Unused Materials, B.E.2548.

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3. Khok

Muang

Sub-district

(Cont’d)





- The content of pollutants released from the power plant chimney must

follow the regulation of the relevant organizations.




- Does the power plant cause

magnetic wave/radiation? Does

the magnetic wave/radiation

affect the community?

- The previous study reported that there existed electromagnetic wave

under the 500 kV transmission line. Thus the power plant will lay the grid

networks underground within its area, so the magnetic field problem in

the surrounding area will be reduced.

- When the power plant exists, is

the rain water consumable?

- The pollutants discharged from the power plant are strictly controlled by

the standards of the relevant governmental offices. Thus, no impacts are

imposed on consumable water.

- Does the power plant generated

soot? Does it cause any impacts?

- The content of pollutants released from the power plant must be followed

the regulation of the relevant governmental offices.




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participants

3. Khok

Muang

Sub-district

(Cont’d)

- Do the people living around the

power plant have health

problem? Will they be barren?






crops.

- The concentrations of the stack emissions from the power plant must

comply with the standard of the relevant governmental offices.

- The health data of all families in the study area before project operation

were collected and compared to those after plant operation.

- Who are the committee to be

assigned for inspecting the

power plant?

- The committee will be selected from the people and the environmental

inspector will be appointed for inspecting the power plant operation. The

power plant will support the training budget. The term for the committee

and the inspector is 2 years.

- If the power plant operation is

found to discharge the pollutants

exceeding the standard, will the

power plant be shut down?

- In normal practice, if the machines in the power plant are not operating

according to the standard, they will be automatically turned off.




- Noise impact - During construct period, some noisy activities generating loud noise are

foundation pile hammering and test run of the machines. These activities

will be informed to people in advance.

- A plan for surveying chicken farms and households in the plant vicinity

area is set up to evaluate the impacts.

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participants

3. Khok

Muang Sub-

district

(Cont’d)

- Installation of noise reductions equipments, noise adsorbent wall.

- The noise generating activities are occasionally conducted.

- During operated period, the noise level will be controlled not to exceed

the standard. The noise levels will be measured at the fence.

- Will the life style of the villages

be changed?

- It will be changed. The impacts will be studied during construction and

operation periods.


- The economy system will be stimulated continuously.

- The fund for community development in the area around the power plant

will be set up for immediate compensation of any damages without

evidence approval.

- Why is this area selected for the


- There are 3 factors for the power plant site selection including 1) near the

power grids 2) near water resources and 3) near natural gas pipelines.

- Are there impacts on respiratory

system?

- The content of stack emission from the power plant must comply with the

standards of the relevant governmental offices.

- Will the employment be

available for the locals?

- For the recruitment by examination, if the locals have scores higher or

lower but close to that of the candidates from outside, the locals will get

the priority. However, in the case of too low scores, the locals will be

refused due to security and safety of the power plant.

- Will the minerals in the water be

reduced?

- The essential minerals in the water remain the same.

- At present, the Kaengkoi 2 Power Plant uses the water for plant watering

without any impacts.

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participants

4. Khok Toom

and

Phonthong

Sub-districts

- Will the discharged effluent

affect aquatic animals and fresh

water fishery?






crops.





- The sub-meeting

with animal husbandry

groups should be

organized.

- The warning system

for leaked natural

gases should be

installed.

- Air quality

inspection should be

done before the

project starts. - Will the power plant generate

more dust?

- The content of pollutants released from the power plant chimney must

follow the regulation of the relevant governmental offices.




- How is the air quality

monitored? If it affects

occupation, what are the

preventive and corrective

measures?

- There are 4 air quality monitoring stations, i.e., Wat Nong-Tangbun, Wat

Nongkratart, Wat Khok Muang and Wat Khok Daeng, which were

installed before the construction period. The monitoring is conducted

every 6 months during the construction and operation periods.

- There are 4 permanent and continuous air quality monitoring stations in 4

communities.

- From the monitoring results and impact evaluation of air quality, it was

found that all measured values were in compliance. However, the stack

emission concentrations will be controlled to comply with the regulation

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Table 7.5-7(Cont’d)


participants

4. Khok Toom

and

Phonthong

Sub-districts

(Cont’d)

of the related agencies. The plant will be automatically shutdown in case

of failure of pollution control systems.

- In case of water shortage, what

are the preventive and corrective

measures?

- The power plant has a water well which can store water for uses in 30

days without any additional pumping in. The water will be pumped into

the well in the rainy season only.

- Why is the effluent discharged? - When the water is used in several processes, its temperature is changed

and the minerals in water become scaling as found in vehicle radiators.

The scaling is hard to be removed. Thus the power plant has studied

about how many cycles the water can be used (4 cycles) before being

treated to comply with the standard of the governmental office prior to

discharge.

5. Rasom

Sub-district

- In case of the affected people

from the power plant, how will

they get compensation from the

fund? And where will they get

from?

- The fund for development of the area around the power plant will be set

up for immediate compensation of any damages without evidence

approval.

- The contact person for the case of compensation is the fund committee.

No comments

- Can the power plant use solar

cell?

- This power plant was designed to use only natural gas and diesel oil as

fuels. It is thus difficult to change to the other fuels.

- Is the discharged effluent salty?

Will it affect young trees (wild

trees)?






crops.

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5. Rasom Sub-district (Cont’d)

- The effluent quality monitoring station will be installed. If the drained effluent quality exceeds the standard, the valve will be automatically turned off so that the effluent cannot be drained to the outside, but retreated until its quality is in compliance.

6. Khok Sa-at and Nong-Huapho Sub-districts

No concerns No measures. No comments

7. Khotsasit Sub-district

- Do the proposed measures exist in the contract with the governmental sector?

- The proposed measures are presented in the EIA report which will be strictly implemented by the power plant. If there are additional suggestions, they can be added to the report.

- The public meeting should be organized with people in this TAO. - Will the life style of the

villagers be changed? - It will be changed. The impact will be studied during construction and

operation periods. - The community utilities are improved. - The economy system will be stimulated continuously. - The fund for community development in the area around the power plant

will be set up for immediate compensation of any damages without evidence approval.

- Some areas will be changed to industrial zones but the original agricultural area will be able to use for agriculture as usual.

- In order that the locals can have participation and higher quality of life, how is the company recruitment policy like?

- For the recruitment by examination, if the locals have scores higher or lower but close to that of the candidates from outside, the locals will get priority. However, in the case of too low scores the locals will be refused due to security and safety of the power plant.

- To support scholarship to poor children.

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participants

7. Khotsasit

Sub-district

(Cont’d)

- Why is the treated effluent not

recycled?*

- When the water is used in several processes, its temperature is changed

and the minerals in water become scaling as found in vehicle radiators.

The scaling is hard to be removed. Thus the power plant has studied

about how many cycles the water can be used (4 cycles) before being

treated to comply with the standard of the governmental office prior to

discharge.

- How is the committee

appointed?

- At first, the committee will be selected by local people. This committee

will designate guideline and regulation of the committee. Later, when

there is a fund for community development in the plant vicinity area.

There will be a committee to manage the fund.

8. Nong-Kob

and Nong-

Kwai-So

Sub-districts

- Potential impacts to be

imposed by the power plant.

- The impacts during construction and operation periods are to be studied

and community the mitigative measures be assigned.

- The fund for community development of the area around the power plant

will be set up for immediate compensation of any damages immediately

without evidence approval.

- The site should be

moved to the area

north of Chaopraya

River.

- The data of relevant

Remark: At present, the Nong-Saeng Power Plant project is designed to recycle water for uses as much as possible. The wastewater generated to be discharge is the effluent from the cooling towers only. The other wastewater such as the sanitary wastewater from the offices and chemical contaminated wastewater are treated and recycled. Some wastewater is treated by using high quality treatment system, e.g., thermal evaporation, which can recycle the whole effluent. The solid wastes is the residue in the final stage which is to be disposed according to the regulation of the Ministry of Industry entitled Disposal of Sewage and Unused Materials, B.E.2548.

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participants

8. Nong-Kob

and Nong-

Kwai-So Sub-

districts

(Cont’d)

- Were the values measured before the beginning of the project? What are the monitoring values during construction and operation periods?

- The impacts in constructing and operating periods will be studied and the protective and solving measures will be assigned.

- The effluent quality is controlled according to the Order of Department of

Irrigation No.883/2532 (1989) entitled “Prevention and resolution for drainage of low quality water to irrigation canals and other canals joint to


drained from the power plant does not affect the people and agricultural crops.

- The consultant company has collected some basic data, such as surface water samples, pH value, suspended solids, etc. These data will be references for data comparison in the periods before and after the power plant operation.

organizations such

as provincial

industry office,

provincial health

office, etc., should

be revealed and

compared in the

periods before and

after the power plant

operation.

- The final EIA report should be submitted to people.

- The governmental office representatives should participate in the meeting.

- Will the power plant affect way of life/ occupation/ health of the villagers?

- The power plant surrounding area will be developed. - The health data of people in various areas around the power plant were

monitored and the health data of every household were collected before having the project.

- The fund for community development in the area around the power plant will be set up for immediate compensation of any damages without evidence approval.

- How are the impacts on water quality, air quality and soil?

- The effluent quality is controlled according to the Order of Department of Irrigation No.883/2532 (1989) entitled “Prevention and resolution for drainage of low quality water to irrigation canals and other canals joint to them in the irrigation zones”.

- The concentrations of stack emissions from the power plant must comply with the regulation of the relevant governmental offices.

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participants

8. Nong-Kob

and Nong-

Kwai-So

Sub-districts

(Cont’d)

Why is this area selected for the


- There are 3 factors for the power plant site selection including 1) near the power transmission line, 2) near water resources and 3) near natural gas pipelines.

- The power plant has appropriate mitigative measures for the site location.

9. Pachee

Sub-district

- Is the effluent from cooling towers recycled?*

- When the water is used in several processes, its temperature is changed and the minerals in water become scaling as found in vehicle radiators. The scaling is hard to be removed. Thus the power plant has studied about how many cycles the water can be used (4 cycles) before being treated to comply with the standard of the governmental office prior to discharge.

No comments

- Are the measures given in the EIA report social contract?

- The propose measures in the EIA report are to be strictly implemented by the power plant.

Note: At present, the Nong-Saeng Power Plant project is designed to recycle water for uses as much as possible. The wastewater generated to be discharge is the effluent from the cooling towers only. The other wastewater such as the sanitary wastewater from the offices and chemical contaminated wastewater are treated and recycled. Some wastewater is treated by using high quality treatment system, e.g., thermal evaporation, which can recycle the whole effluent. The solid wastes is the residue in the final stage which is to be disposed according to the regulation of the Ministry of Industry entitled Disposal of Sewage and Unused Materials, B.E.2548.


T-EIA208102 7-42 F208102Chap7E-ADB

• Measures for noise

: During construction period, most of respondents (60.0%)

thought that the measures were sufficient. However, most

participants from Pachee and Khok Sa-at, and Nong-Huapho

Sub-districts (70.0% and 62.20%, respectively) had no comments.


that the measures were sufficient. Most participants from Khok

Sa-at and Nong-Huapho, and Pachee Sub-districts (70.0% and

62.2%, respectively) did not show any comments.

• Measures for hydrology condition and surface water quality


thought that the measures were sufficient. However, those from

Khok Sa-at and Nong-Huapho, and Pachee Sub-districts (70.0%

and 67.6%, respectively) had no comments.


that the measures were sufficient. However, those from Khok

Sa-at and Nong-Huapho and Pachee Sub-districts (70.0% and

67.6%, respectively) did not have comments.

• Measures for groundwater water quality



Khok Sa-at and Nong-Huapho, and Pachee Sub-districts (70.0%


: During operation Period, most of respondents (60.0%) thought

that the measures were sufficient. However those from Khok Sa-

at and Nong-Huapho, and Pachee Sub-districts (70.0% and

64.9%, respectively) did not have any comments.

- Biological environmental resource issue

• Measures for water ecology


thought that the measures were sufficient. However, those




T-EIA208102 7-43 F208102Chap7E-ADB


that the measures were sufficient. However those from Pachee

and Kotchasit Sub-districts (67.6% and 61.0%, respectively) did

not show any comments.

- Human uses by issue

• Measures for land utilization



Pachee and Khok Sa-at, and Nong-Huapho Sub-districts (70.3%


• Measures for traffic and transportation


thought that the measures were sufficient. However, those




that the measures were sufficient. However, those from Pachee


not have any comments.

• Measures for drainage and flood control









• Measures for solid waste management




T-EIA208102 7-44 F208102Chap7E-ADB

Pachee, Khok Sa-at and Nong-Huapho Sub-districts (70.3% and

60.0%, respectively) had no comments.





- Value of life quality issue

• Measures for economy-society and people participation








not have any.

• Measures for public health, occupational health and safety

: During construction period, most respondents (54.9%) thought

that the measures were sufficient. However, those from Pachee,

Khok Sa-at and Nong-Huapho Sub-districts (67.6% and 60.0%,

respectively) had no comments.





- Other opinions and suggestions about the project

• To take care of the nearby and affected communities fairly and

continually.

• All people should join the power plant tour.,

• To take care of villager’s health, for example, to have monthly

physical examination, etc.

• To routinely monitor water quality.


T-EIA208102 7-45 F208102Chap7E-ADB

• To regularly keep the safety standard and implement the measures

to reduce the impacts,

• To conduct public relation for people to clearly understand the

principles and the potential impacts and to organize training on

reading of monitoring results.

• To encourage people to participate in activities or making

careers/income for local people.

Minutes of the 10 meeting stages were made by the study team. The

minutes were placarded at 12 TAO offices in the study area, subdistrict header offices,

Nong-Saeng and Nong-Kae District Offices in Saraburi and Pachee District Office in Phra

Nakhon Si Ayutthaya. This was to inform people who did not join the meeting to know about

the minutes. The additional public hearing was also opened via postal communication. The

address and telephone number of the consultant company were given. The company also

coordinated to get additional suggestions from the local people. However, there were no

additional comments or different opinions from those in the minutes.

(2) Organization of public stage for people opinion hearing

After organization of the second public hearing in which the study results

and environmental measures were presented at 10 stages, some people in the area were still

anxious about the project. They also worried that the operation of the Nong-Saeng Power

Plant would cause impacts on the life way of the communities. Some communities gave

the comments that the study and EIA of the project were the academic work in which the

communities lacked of experience to completely understand all the process. To make the

community be confident to the project, the Power Generation Supply Co., Ltd. had

organized the meeting in the form of public stage. The meeting objectives included giving

the project information, answering the questions, clarifying the doubtful issues, being

widely opened for all participants both inside and outside the study area to present their

comments on the project and to make confidence that the project would work transparently.

The summary of the important issues was listed below.

- Schedule, place, media and participant number: The public stage of

the Nong-Saeng Power Plant was organized on March 27, 2008 at

Nong-Saeng Wittaya School in Nong-Saeng District of Saraburi. The

panel included the representatives from central offices such as

Department of Pollution Control, Office of Natural Resources and


T-EIA208102 7-46 F208102Chap7E-ADB

Environmental Planning and Policy (ONEP), the representatives of

provincial offices (provincial governor, provincial industrial chief

officer of Saraburi), freelance technocrats, the representatives of

private organizations, the representatives of conservative groups,

community leaders in the study area, executives of local

administration organizations in the study area, mass media and

interested people. Total participants were 1,670 persons. The meeting

chairman was Saraburi provincial governor.

• Meeting supplementary media: The media prepared for the public

meeting included

: The project presentation document consisted of reasons,

necessity, objectives, project description of the Nong-Saeng

Power Plant and the study methodology, etc.

: Figure for explanation and presentation: The Power Point

presentation consisted of reasons, necessity, the project

description, electricity generation process of the combined cycle

power plant, study methodology and assessment of

environmental impacts and public participation.

- Order of the meeting: The public hearing operation was divided into 3

sessions depending on the nature of activities which included the

explanation of the project background and brainstorming of

participants’ opinion. The public hearing activity was summarized by

order as follows:

• Opening speech by Saraburi provincial governor.

• Presentation of the project information was to present the project

background in order to make understanding of the public hearing

participants. The presentation was divided into 3 issues as.

: The project background,

: The study and assessment of environmental impacts.

: Components of the electricity generation process and

environmental impact prevention/control system in Nong-Saeng

Power Plant project,


T-EIA208102 7-47 F208102Chap7E-ADB

- The Q&A results: After the presentation of the project details, the

public stage participants discussed and gave comments about the

project. The consultant and representatives of the Power Generation

Supply Co., Ltd. answered and explained the details for all questions.

Summary of the important issues is given in Table 7.5-8.

- Announcement of the social contract was done after widely discussion

by the Power Generation Supply Co., Ltd. as follows:

• The power plant will be operated with care of environment and

communities.

• The power plant will be operated with acceptance of community

committee’s participation.

• The power plant will waive its legal rights by allowing the people

to inspect any times.

• The power plant will be operated with care and cooperation for

community development

(3) Appointment of public participation committee

From the concern issues of some people in the area and the Nong-Saeng

Power Plant awareness of environment and concern with communities around the plant

after the public meeting, the company had announced the social contract to allow the plant

inspection by the representatives of local people in the local area since the beginning of the

project. The company organized the third public meeting at mid year of 2008. The activity

aimed to be a public meeting for each subdistricts. The subdistrict assembly representatives

were elected from every village in the subdistrict. The assembly representatives from all

subdistricts assembled to assign regulation frame for committee appointment. When the

frame was voted by majority of the assembly, the committee was elected according to the

regulation as summarized below.

- The activity for coordination, discussion and making understanding

between the Power Generation Supply Co., Ltd. and community

leaders around the Nong-Saeng Power Plant project was done by

visiting, opinion sharing and discussion. The discussion was about the

reason for the appointment, guideline for making understanding with

local people, and guideline for participation of all people in the area.

This activity was aimed to make understanding about the community


T-EIA208102 7-48 F208102Chap7E-ADB

Table 7.5-8

Summary of Questioning Issues and Explanation from Public Stage

Nong-Saeng Power Plant Project Concern Explanation

1. Does the power plant construction conflict with city planning?

- No confliction because there is no city planning in the area of Nong-Saeng District.

2. Water shortage in the area. - The power plant site faces the flood problem rather than water shortage.

- From the study, the water in Pa-Sak River is sufficient. 3. Impact on health of unborn

babies, babies, children, adults and old people.

- The impacts of the power plant were generated from air pollution. But the operation of the Kaengkoi 2 Power Plant did not affect health of unborn babies, babies, children, adults and old people.

- The health check of the local people will be performed both before and after the project.

- From the study, high dust content was not generated from the power plant but was resulted from the environmental condition around the project site.

4. The impact of land filling during construction period.

- The land filling will be 1.5 meters high starting with asphaltic road being constructed in the project area.

- A canal will be constructed around the site area. After rainfall, bits of soil and rock will be flushed down to the canal. This will prevent shallowness of the public canals and stain on the road surface.

- Vehicle wheel cleaning well will be constructed. - The traffic control team/ group, such as civil defense

volunteer, was appointed during transportation period. - The villagers’ representative was appointed to control the

contractor. 5. Garbage management - The example of the Kaengkoi 2 Power Plant who invested

8 million bahts for constructing a garbage incinerator was cited.

6. Impact on surface water supply taking water from Klong Rapeepatana (Group 4 of Nong-Kob Subdistrict).

- A new tap water system will be constructed for Group 4 of Nong-kob Sub-district by the company. Then the system will be managed by the local.

7. Loud noise during construction period

- The construction activities are assigned to do only in daytime between 07.00 am.-06.00 pm.

- In the case that noise perturbs chicken farming, the farmers will be compensated.


T-EIA208102 7-49 F208102Chap7E-ADB

Table 7.5-8 (Cont’d) Concern Explanation

8. Why is this area selected for the power plant construction?

- The site selection factors for a power plant include water resource, power grid and natural gas pipelines.

9. Will the equipments and machineries of the power plant be in good condition for the whole life of the plant?

- The power plant will maintain the equipments and machineries in good condition for the whole plant life.

10. Why does not the power plant reuse the effluent?

- The effluent will be reused water for 4 rounds and treated to comply with the standard before being discharged to the water resource.

11. Return for the communities. - Before the foundation pile hammering, the company will support activities or the requests of the villagers or community leaders.

- When the power plant constructions starts, the fund of 80 million bahts a year will be set up and managed by the committee.

12. Why are people not informed before selecting the power plant site?

- The company followed the bidding procedure that the company having bidding right must own the land.

- In the EIA study, the complete information including plant site must be obtained so that the potential impacts can be predicted.


T-EIA208102 7-50 F208102Chap7E-ADB

participation committee. This was done by explaining about the

committee background, committee role, and guideline for people

participation. In the earlier step, each village would select/ elect its

representatives, which would be selected as the subdistrict assembly

committee in the next step.

- The meeting for selection of subdistrict assembly: When there were

village representatives, the working team had organized the meeting

for selecting subdistrict assembly. The candidates for the assembly

came from village representatives. The meeting was organized during

September 6-October 15, 2008 in totallly total 12 stages and 1,150

participants. The total selected subdistrict assembly was 184 persons.

For these people, 106 persons were from the project site subdistrict

and 78 persons were from the inner area subdistricts of the project.

- The drafting of people participation committee regulation: After the

subdistrict assembly selection, the representatives from various sectors

such as representatives of local people, a representative of the power

plant (1 person) and representatives of highly qualified persons

assembled in the subdistrict assembly to draft the community

participation committee regulation (Details of the regulation are given

in Appendix VI).

- The committee selection: When the regulation was voted by majority

of the subdistrict assembly, the committee selection was carried out

according to the regulation. The selected list was then presented to

Saraburi provincial governor for official appointment. (The official

appointment document is shown in Appendix VI).

There were 2 participation committees e.g., the participation committee

of the Nong-Saeng Power Plant project site subdistrict and that of the inner area

subdistricts of the Nong-Saeng Power Plant project. The committee had started meeting

and working according to their roles since October 2008.


T-EIA208102 7-51 F208102Chap7E-ADB

7.6 Conclusion of the Works on Public Relation and Public

Participation The works on public relation and public participation under the study and

assessment of the environmental impacts of Nong-Saeng Power Plant Project which is

located at Moo 4, Nong-Kob Subdistrict in Nong-Saeng District of Saraburi Province, were

carried out along with the socio-economic study. The activities had been carried out

continually with all target groups, provincial officers, district officers, subdistrict officers,

community leaders, local administration staff, village committee, and household

representatives. The works emphasized on two-way communication, in which the right and

clear information was disseminated to target groups and at the same time hearing of

opinion/suggestion, useful for the study and EIA. The opinion and suggestion were used

for improvement of the project operation in the future and assignment of environmental

and social mitigative measures to comply with the problem conditions and community’s

need.

The works were carried out using combined techniques of several formats

according to the guidelines of the study and social impact assement of the Office of

Natural Resources and Environmental Planning and Policy (ONEP). The conclusions of

the work were as follow :

7.6.1 Participation in news/information acknowledgement, understanding,

and suggestion for the project News/information acknowledgement

The direct communication with the target groups including provincial offices,

district offices, subdistrict offices, local people and local mass media to make them know

the project information better. The governmental offices acknowledged the objectives and

targets of the study and EIA and the work on public participation. The community leaders

and people in the area learned and understood about the reasons, necessity of the power

plant construction, the study methodology and assessment of environmental impacts for

designation of environmental measures. The guideline for participation in the study was

also acknowledged. This was evidenced by the acceptance of the project, the suggestion

and presentation of the information and problems which were useful for the study and EIA.

(1) Understanding of the matter and content of the project: Most target groups participating in the activity learned about the reason, necessity of the power plant construction and the whole country demand of electricity. In the public participation work, the study team emphasized on the content that made the target groups understand about the


T-EIA208102 7-52 F208102Chap7E-ADB

power plant operation and application of clean and environmental friendly technology in the project in order to reduce the community’s concern. However, some participants were not sure if the power plant construction near the community would cause any environmental impacts on the communities. The study team explained various technology including, environmental measures and public participation in inspecting and watching the potential impacts. This made the participants understand and relax from concern to the project. (2) Understanding of the process and procedure of the study and EIA: Most target groups (more than half) understood the study methodlogy and the study results presented by the study team at the first public participation meeting with 9 stages, at the second with 10 stages, and 1 public stage at fair to good levels. However, only few groups did not understand the technology used in the project which is technical issue. Some people were still anxious about the project development. (3) Opinion about the project: In the earlier study stage, most people in the study area had negative opinion on the project due to of their concern about the impacts and the negative information obtained from the outside the area. After the study team had visited the people, organized public participation activity and organized the power plant tour, the people in the study area had better knowledge and understanding of the power plant production process. This persuaded people to be relaxed from concern to the project. However, some people in the study area still had negative opinion on the project. Thus, the Power Generation Supply Co., Ltd., would make understanding to this group of people.

7.6.2 Participation of people and relevant persons All target groups showed good participation in all activities. This was evident by participation in the public hearing events, such as the first meeting of 9 stages with 653 participants the second meeting of 10 stages with 1,005 participants, and in the power plant tour of 19 rounds with 2,218 participants. The activities mentioned above caused the public participation be successful. The target groups were aware of right news/information. The participants also gave opinion/suggestion useful for the project operation as follows: (1) The community leaders and people in the study area joined the public hearing activity. They listened to the information, asked questions and gave suggestion to the project. From all stages of public participation, most of them were aware of necessity of the construction of the new power plant, importance of community participation in the study, monitoring of environmental impacts, watching and controlling of environmental conditions in the communities. They also tended to be representatives for monitoring and inspecting the environmental impacts.


T-EIA208102 7-53 F208102Chap7E-ADB

(2) Local administration organizations and subdistrict offices, such as chief

administrator of TAO, teachers and head of public heath center joined the meeting. They

gave suggestion and reflected the community in point of relationship, problems and

impacts caused by the project development. These people could be media for making

understanding of the community. Most of them agreed that the project progress should be

inspected. They were pleased that clean technology was applied to the project, including

the use to natural gas as fuel. The Nong-Kob TAO council voted for the power plant

construction in their area.

(3) Governmental offices at district and province levels cooperated with the

plant and gave useful suggestion for the project. They provided the information which

could be used in practics. They also suggested the guidelines for sharing benefit between

the communities and the Nong-Saeng Power Plant.

7.6.3 Summary of questioning issues obtained from the public hearing

activity

The study team collected the questioning issues, concerns and suggestions

obtained from all public hearing activities. These information were used to designatethe

the social mitigative measures. Summary of the important issues classified by occupational

groups and concern issues is given in Tables 7.6-1 and 7.6-2, respectively.

7.6.4 Implementation in accordance with the regulation of the Office of

Prime Minister

Various activities are conducted to encourages people in the study area to get

the project information sufficient for making a decision to accept the project and to be

pleased to participate with the project, the study team had followed the working frames of

the ONEP and the regulation of the Office of the Prime Minister entitled “Public hearing of

2548 (2005)”. Summary of the work is given in Table 7.6-3.

7.6.5 Suggestion for further work

From the whole figure of the working results, the community leaders in the

study area were interested in and pleased with the project development. They expected that

the project development would bring about the community development. However, people

particularly who are living in the communities around the project worried that the project

development would cause environmental and social impacts on the communities. They also

concerned that the project would use coal as fuel. Therefore, the previous works of public

hearing and mass communication provided news/information for making right understanding

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isclosure, Consultation and Participation

Table 7.6-1

Summary of Community Concern Issues and Important Suggestion Classified by Occupational Groups.


Issue Concern Explanation and Designation of Mitigative Measure Rice farming Will the effluent from the power plant

affect agriculture (rice farming)? - The effluent quality was controlled according to the order of the Royal

Irrigation Department No.883/B.E.2532, entitled “The prevention and resolution for the drainage of low quality effluent into the irrigation canals and other canals joint to them in the irrigation zones”. By this standard, the discharged effluents does not affect the people and agriculture crops.

- The effluent quality monitoring station will be installed. If the drained effluent quality exceeds the standard, the valve will be automatically turned off. The effluent cannot then be drained to the outside, but retreated until its quality is in compliance.

Hot gas emitted from the power plant may affect flourishing rice in field.

- The quantity of stack emissions from the power plant will be strictly enforced under the regulation.

- From the study, it was found that after the power plant operation, the SO2 and NO2 concentrations in the ambient air were lower than the standard. The particulates emission from the power plant was very low.

Light from the power plant maybe impact to flourish of rice.

- There is lighting in the power plant area as normal. No other lights affect the rice in the field

Fisheries How does the demineralized water discharged from the power plant affect aquatic lives?

- The effluent quality was controlled according to the order of the Royal Irrigation Department No.883/B.E.2532, entitled “The prevention and resolution for the drainage of low quality effluent into the irrigation canals and other canals joint to them in the irrigation zones”. By this standard, the discharged effluents does not affect the people and agriculture crops.

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Table 7.6-1 (Cont’d) Issue Concern Explanation and designation of Mitigative Measure

Fisheries (Cont’d)

- The effluent quality monitoring station will be installed. If the drained effluent quality exceeds the standard, the valve will be automatically turned off. The effluent cannot then be drained to the outside, but retreated until its quality is in compliance.

Chicken-hen farming

Noise generated from the power plant may affect the nearby chicken-hen farming.

- During construct period, some noisy activities generating loud noise are foundation pile hammering and test run of the machines. These activities will be informed to people in advance.

- A plan for surveying chicken farms and households in the plant vicinity area is set up to evaluate the impacts.

- Installation of noise reductions equipments, noise adsorbent wall.

- The noise generating activities are occasionally conducted.

- During operated period, the noise level will be controlled not to exceed the standard. The noise levels will be measured at the fence.

Community drinking water

Is storm water drinkable if the power plant is constructed?

- The pollutants discharged from the power plant are strictly controlled by the standards of the relevant governmental offices. Thus, no impacts are imposed on consumable water.

Employment What is the opportunity of local people be employed in the power plant?

- For the recruitment by examination, if the locals have higher or lower scores being close to that of the candidates from outside the locals will get the priority. However, in the case of too low scores, the locals will be refused due to security and safety of the power plant.

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Table 7.6-2

Summary of Community Concern Issues Used for Designation of Social Mitigative Measures

Nong-Saeng Power Plant Project Issue Concern Explanation and Designation of Social Mitigative Measures

Construction

Period 1. Traffic problem

- What are the measures for traffic

control during the construction period?

- The subcontractors must propose traffic and transportation plan to the project for approval before

the construction begins. The traffic regulation is to be strictly implemented. - Transportation of materials or large machineries is planned in order to avoid rush hours (during

07.00-09.00 a.m. and 05.00-07.00 p.m.) - The transportation through the community area should be avoided. A ring road or a special route

should be used. - The transportation is avoided during heavy rainfall or bad visibility. - Coordination with the highway police before the transportation of materials or large machineries

must be done to set the transport route and ask for motorcade for convenient transportation. - The announcement about the work plan, construction step and duration, and increases traffic due

to the project must be conducted to the communities and related governmental offices before construction in order to listen to and share opinion with them for use in work planning.

- The speed limits of vehicles are 20 kilometers per hour in the construction area, and 60 kilometers per hour on public roads.

- The transportation load must comply with the law. The trucks must be covered in order to prevent their falling on the road surface, which is a cause of accidents.

- A bus for transporting the employees from residence place to the project site area in order to reduce the number of vehicles on the roads.

- Training is provided for the driver in order to drive safety. - Signs or warning signs are posted at the place where is 100 meters ahead the construction site.

The signs must be clearly seen in daytime and night-time.

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Table 7.6-2 (Cont’d) Issue Concern Explanation and Designation of Social Mitigative Measures

1. Traffic Problem

(Cont’d)

- A safety personnel is provided for waving a flag at the entrance and exit of the construction

area including the point where water pipeline is being installed.

- A parking area is particularly provided. No parking is allowed on the road shoulders of the

highway.

- Installation of supporting equipments, such as steel plate, temporary bridge or drain pipe for

facilitating the transportation of machines over the obstructing thing with safety and efficiency.

- Accident statistics due to transportation are recorded with the details and causes of the

accidents. Such data will be used for planning and setting the appropriate preventive measures.

- The road damaged by the material transportation is to be repaired to be of the same condition or

better.

- If the transportation of constructing

materials causes damage on the

road surface, what are the measures

responsible to the damage?

- Installation of supporting pieces of equipment, such as steel plate, temporary bridge or drain

pipe for facilitating the transportation of machines over the obstructing things with safety and

efficiency.

- Repairing the road damaged by the material transportation to be of the same condition or better.

- The transportation load must comply with the law. The truck must be covered in order to

prevent their falling on the road surface, which is a cause of accidents.

- The announcement about the work plan, construction step and duration, and increased traffic

due to the project must be conducted to the communities and related governmental offices

before construction in order to listen to and share opinion with them for use in work planning.

- The speed limits of vehicles are 20 kilometers per hour in the construction area, and 60

kilometers per hour on public roads.

- If the road surface in the community area is damaged due to the construction activity, the

subcontractors and the Power Generation Supply Co., Ltd. are is responsible to all damages.

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2. Noise Problem - What are the measures to prevent the construction noise from annoying the communities?

- The earth wall with a height of 4.5 meters from the ground level is constructed. - The foundation pile hammering and noisy construction activities will be carried out only in

daytime. - The machineries and construction method generating low sound pressure level will be selected. - Utilization of various pieces of equipments or machineries generating loud more continuously

is avoided. - Reduction of the number of tools/machines working in the close area.

- Installation of the movable tools/equipments away from the sensitive area as far as possible. - Engines or tools/machines must be turned off after working. - The subcontractors are assigned to install noise reduction equipment, such as silencer or

muffler on the loud noise machines used for construction. The performance of such equipment is regularly checked.

- The equipments, machines and engines are checked to be in good condition. The heavy machines are to be checked at least once a month.

3. Problem of process water

- How is the community confident that there is no competition for water?

- If water pumping by the Nong-Saeng Power Plant project causes the problem to other water consumers, Department of Irrigation can order the Nong-Saeng Power Plant project to stop pumping water from Pasak River.

- A raw water well of 1,600,000 cu.m. capacity will be constructed by Nong-Saeng Power Plant project. Such water volume can be used by Nong-Saeng Power Plant project for 1 month without pumping water from the outside as the reserved water in dry season.

Operation period 1. Fuel used in production process

- Can the power plant use fuels other

than natural gas and diesel oil?

- The contract of 3 parties,i.e., the power plant, PTT and EGAT, clearly specifies that the power

plant uses natural gases. - The machines and equipments used in the power plant are designed to use natural gas as main

fuel and diesel oil as backup fuel only.

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2. Problem of

process water

- The power plant pumps in large

quantity of water for production. This

may affect agricultures.

- The project has studied the equilibrium of water in order to find the water intake point which

dose not affect life way and water consumption of the community. The suitable point is

between north of the Rama VI Dam and the end of Chainat Canal.

- A well with capacity of 1,600,000 cu.m. is constructed to store water for use in the project.

Water is filled in the well when the water consumption for irrigation is less than the water

quantity at the water intake point. This period is during June to November. The power plant

will coordinate with Department of Irrigation about allocation of water from Pasak Chollasit

Dam. This will not affect the water utilization for irrigation, consumption and industries

downsteam of the water intake point.

- How is the community confident that

there is no competition for water?

- If water pumping by the Nong-Saeng Power Plant project causes the problem to other water

consumers, Department of Irrigation can order the Nong-Saeng Power Plant project to stop

pumping water from Pa-Sak River.

- A raw water well of 1,600,000 cu.m. capacity will be constructed by Nong-Saeng Power

Plant project. Such water volume can be used by Nong-Saeng Power Plant project for 1

month without water from the outside as the reserved water in dry season.

3. Effluent problem - Temperature and effluent quality

from the power plant may affect

aquatic animals in Klong

Rapeepatana and agriculture in the

area.

- The effluent discharged from the project is from the cooling tower only. The effluent is

discharged to Klong Huaiba (Klong Nong-Ngu-Loem).

- The effluent which is not cooling water is treated and reused as much as possible, e.g.,

watering on trees, machine cleaning, the power plant floor cleaning, etc. This effluent is not

discharged to the outside.

- The cooling water will be stored in the effluent holding pond for 3 days before discharge.

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3. Effluent problem

(Continued)

- The effluent from the cooling tower of the project is treated so that its quality meets the

standard according to the Order of Department of Irrigation No.883/2532 (1989) entitled

“Prevention and resolution for drainage of low quality water to irrigation canals and other

canals joint to them in the irrigation zones” and the effluent standard according to ministerial

announcement of Ministry of Industry No.2 (1996) before being discharge to Klong Huaiba

(Klong Nong-Ngu-Loem).

- The temperature of the effluent is controlled not to exceed 34 °C. The thermometer, electrical

conductivity meter and pH meter are installed for monitoring the effluent quality in the

holding pond. If the effluent temperature is higher than 34 °C, the effluent must not be

discharged and the effluent temperature must be reduced to be lower than 34 °C before

discharge.

4. Air pollution

problem

- How to control the emission from the

stack?

- NOx control system consisting of Dry Low NOx Combustion System and Water Injection

System is installed for controlling of NOx emission in cases natural gas and diesel oil are used

as fuel.

- In case of using natural gas as fuel, the emission rates of air pollutants are controlled to be the

designed value at 100% load as follows:

• Sulfur dioxide not exceeding 10 ppm at 7%O2

or not exceeding 7.74 g/s per stack

• Oxides of nitrogen not exceeding 70 ppm at 7%O2


• Particulate not exceeding 20 mg/Nm3 at 7%O2

Or not exceeding 5.92 g/s per stack

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Table 7.6-2 (Cont’d) Issue Concern Explanation and designation of Social Mitigative Measures

4. Air pollution

problem

- How to control smoke from the

chimney?

- The case of using diesel oil as fuel, the emission rates of air pollutants are controlled to be the

designed value at 100% load as follows:

• Sulfur dioxide not exceeding 30 ppm at 7%O2


• Oxides of nitrogen not exceeding 120 ppm at 7%O2


• Particulate not exceeding 35 mg/Nm3 at 7%O2

Or not exceeding 9.99 g/s per stack

- Continuous air quality monitoring system (Continuous Emission Monitoring System; CEMs)

is installed at HRSG stack for continuous monitoring of emission rates. This is used to control

the emission sources of the power plant.

- An alarm system will be installed if the emission rate approaches the designed value.

- The measures or working procedure are prepared for reducing the emission rates for example,

reduction of production capacity. If the emission rate is still higher than the designed value,

the plant is to be shutdown.

- The plant will be shutdown if the NOx control system fails.

- The monitoring results of stack emission and ambient air quality are displayed on the monitor

at the front of the power plant.

5. Benefit for the

community

- What are the benefits that the

communities get from the existence

of the power plant?

- The money allocated to the local communities are obtained from


• Value added taxes of gas purchasing from PTT and electricity sale to EGAT.

- The community development fund was founded in the plant vicinity area. (during construction

and operation periods). This is the pay back to the communities that sacrifice the area for the

power plant.

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5. Benefit for the community (Cont’d)

- Activities are organized to encourage and support several community development. This aims to reduce concerns about impacts on career, to increase people’s standard of living, to develop the community. It also aims to support learning art, culture and religion, for example, supporting careers at sustainable economy learning center, agricultural demonstration plot (rice growing demonstration plot, mushroom growing demonstration plot, etc.), animal husbandry (chicken and hen farming), family accounting, integrated community and society development, monitoring and evaluating/surveying of career damages caused by the power plant operation, making understanding about the operation, annual power plant visiting and regular informing of the project information.

- Activities are organized for supporting of the community as appropriate. The power plant staff will participate in the community’s activities as if they were the household members. The activities include merit making, donation of things, granting scholarship to students in the local area, participation in community, temple and public property development.

- Regarding mass communication and community communication, community supporting projects related to public interests that bring about better life quality of local people around the project site are organized. These activities are additional operation plan of the fund, for example,

• Education supporting project for granting scholarships to students in the community and supporting of learning and sport kits to the schools in the radius of 5 kilometers away from the project site.

• Project on public health and occupational health of communities supporting project, such as organizing of mobile medical clinic, etc.

• Project on recruitment of outstanding students to be the power plant staff.

• Project on religion fostering in the plant vicinity area.

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5. Benefit for the community (Cont’d)

• The career development project for making income to the community, such as agricultural career development or agricultural products processing in the locals for value adding. For example, the support of housewife groups to process several forms of foods from agricultural products in the locals and to sell their products to other places or even to upgrade their products to be one Tumbol (subdistrict) and one product (OTOP).

• Project on conservation of art, culture, custom and local wisdom. - The supporting plan for development of community potential in environmental field is set up

for making community understand and be aware of importance of participation in environmental problems. The plan includes the following :

• The supporting project on development of local conservation tourist sites.

• The training project on disaster mitigation, first-aid treatment, information sharing (method and channel) among the power plant representatives, governmental officers and the communities.

• Supporting school activities, such as environmental monitoring volunteer or young environmental scientists, such as wind detectives, stream detectives, etc.

The reforestation project to increase green area in the community and in the adjacent areas in Nong-Saeng, Nong-Kae Districts of Saraburi and in Pachee District of Phra Nakhon Si Ayutthaya Province will reduce concern about environmental change.

6. Concern various occupational groups, such as poultry, rice farming and mushroom growing groups.

The project operation may affect the occupation of local people. - Chicken and hen farming

Constructing period

- The project will make assurance contract for the impact on occupation. The power plant will be responsible to pay compensation of earning made from chicken and hen farming for the farmers in the radius of 1 kilometer away from the power plant site with the following conditions. (i) The farmers agree not to raise chicks at the beginning of the construction in

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6. Concern various

occupational

groups, such as

poultry, rice

farming and

mushroom growing

groups (Cont’d)

frightened with noisy construction. Under the mentioned conditions, if the impacts exist, the

Nong-Saeng Power Plant is pleased to compensate on investment cost, turnover,

disadvantages and fee to the contract partners.

Operation period

- The project agrees to make a compensation contract for the impacts of noise and increased

temperature (if they are proved to be generated from the power plant) on chicken and hen

farmers in the radius of 1 kilometer away from the power plant site. The compensation will be

on account of the actual impacts caused by the project.

- The project agrees to make an assurance contract with chicken and hen farmers in the radius

between 1 and 2 kilometers away from the power plant site for the impacts of increase

temperature that is proved to be generated from the operation of Nong-Saeng Power Plant.

The compensation will be on account of the actual impacts caused by the project.

- The assurance conditions for the two cases are (i) the temperature and noise data in the poultry

farm which is in the radius of 1 kilometer were collected by Nong-Saeng Power Plant as

baseline data for future comparison in case of argument that whether the impact is caused by

Nong-Saeng Power Plant or not. For the poultry farm in the radius between 1 and 2

kilometers, the Nong-Saeng Power Plant will collect temperature data as reference data for

comparison in order to evaluate the temperature impacts. Adjudicating of the impacts or

damages will be done by the subcommittee appointed by the public participation committee in

the area of the Nong-Saeng Power Plant.

- Rice farming - If the rice farms are affected by the light from the project, compensation will be paid.

- The rice farming demonstration plot of 10 Rai (1 Rai = 1600 square meters) is prepared.

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6. Concern various

occupational

groups, such as

poultry, rice

farming and

mushroom growing

groups (Cont’d)

- Rice farming by lessees - The former lessees will be allowed to do rice farming in the former rice field, now is the

power plant property, with free of charge.

- The project will inform the lessees in advance for 1 round/time before cultivation (about 4

months before the construction begins). This allows time for consideration of giving help to

the lessees.

- The lessees in the project area will be compensated or paid for dismantling cost if their houses

are in the project area.

- If any lessees want the project to find the job for them, employment in the power plant will be

given for 1 person per family.

- Mushroom growing - If there are evidences that mushroom growing is affected from the effluent discharged from

Nong-Saeng Power Plant project, the project is pleased to compensate the market price of the

decreased products for the affected people.

- If that impact occurs, the Nong-Saeng Power Plant project will find another water resources

for the mushroom growers. For example, construction of deeper artesian wells, connection of

water pipelines to other water resources or installation of water filters for the mushroom

growers.


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Table 7.6-3

Study Implementation in accordance with the Regulation of

the Office of the Prime Minister entitled “Public Hearing” B.E.2548 Regulation of the Office of

Prime Minister

Procedure/Implementation

No.1, No. 2, No.3 No. 4 Explanation of details-Definition

No. 5 Before conducting a governmental project, the governmental office being responsible for the project shall disseminate information as stated in No. 7 to public and shall listen to people’s opinion by any means or those stated in No. 9.

The public relation and public participation of the Nong-Saeng Power Plant project was conducted as follows: 1. Project information distribution Public relations for making the target groups be acknowledged are - Visiting community leaders and important persons in the study

area to inform about the project. This was done before listening to individual opinion. The visiting was either official or non-official. The visiting also extended to local officers in the district, sub-district and local administration organization levels to publicize the project and to survey opinion and opinion stream toward the project. This activity had been performed for the whole study period.

- Placards for inviting people who were interested to join the meeting were posted on the public relation boards of TAOs, MDs and districts in the study area.

- In all stages of public hearing, the meeting supplementary documents and other media were given to participants to learn about the project before starting the activity.

2. Public hearing The study team had given priority to public hearing since the studying period. This was implemented by organizing public participation activities in which the target groups showed their opinion, shared information, reflected opinion and idea stream via two-way communication. The techniques employed included - Organization of informing stage and the first public hearing to

inform, make understanding and give the project information for 9 times. This had been done during October 28-November 12, 2007. The project information was disseminated to 653 community leaders and people.


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Table 7.6-3 (Cont’d) Regulation of the Office of

Prime Minister Procedure/ Implementation

- The survey of socio-economics of the people was conducted by interviewing 1,095 individuals in October 2007. Before the interview, interviewers briefed about the important issues of the project until the interviewee clearly understood. The interviewee was allowed to show their opinion and suggestion via the questionnaire.

- Organization of project informing stage and public hearing for presentation of the study results was carried out for 10 times during January 20-February 13, 2008 with 1,005 participants.

- Organization of project presentation meeting with chicken and hen farmers in Pachee and Nong-Saeng Districts was conducted to set the mitigative measures for preventing the impacts from the power plant. This was done for 1 time on February 12, 2008 with 20 participants.

- Organization of project presentation meeting to ask for permission from Nong-Kob TAO was carried out for 1 time on February 14, 2008 in Nong-Kob TAO meeting room with 28 participants.

No. 6 In the case that the governmental office does not conduct the public hearing before starting of the project as stated in first paragraph of No.5, if the stakeholder makes a complaint to minister for central government service, to provincial governor for provincial or local government service or to Bangkok governor for Bangkok government service, They shall order the governmental office to organize the public hearing. If it happens, the governmental office must take prompt action.

The project had organized the public hearing before starting the project (the details as given in No. 5). Few community leaders and people in the study area still had concern about the project development. They also saw that the study and EIA were academic work of which the community still lacked of experience to fully understand the whole process. In order to make people be more confident with the project, the Power Generation Supply Co., Ltd. made all parties to learn in details of the project information, to discuss, to ask questions and to make understanding together in every issues. The public stage was organized on March 27, 2008 in the meeting hall of Nong-Saeng Wittaya School in Nong-Saeng District of Saraburi. The total 1,670 participants included chiefs of governmental offices at provincial/district/subdistrict levels of Saraburi, executives of local administration organizations, community leaders, people in the study area, freelance academics, private organizations, environmental conservation groups, mass media. The Saraburi governor presided over the meeting.


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Prime Minister Procedure/Implementation

No. 7 The information of the governmental project which shall be publicized by the governmental office shall contain at least the following items :

In the operation of Nong-Saeng Power Plant project, the consultant company and the Power Generation Supply Co., Ltd., emphasized on making knowledge and understanding for people and relevant persons by using the following public relation media: - Human media • The study team included the working group being responsible

for the study, EIA, public relation and participation and socio-economics,

• The interview staff for the survey of socio-economics and people’s opinion of 10 persons.

- Document media. The consultant company and the Power Generation Supply Co., Ltd., produced media for making knowledge and understanding. These included • 1,000 sets of the meeting supplementary documents (project

presentation) including details, reasons, necessity, objectives, content, site area, operator and products and outcome of the project, the study procedure and EIA and guideline for public participation were distributed to the people in the project area.

• 3,000 sets of public relation documents explaining power generation process and cogeneration were distributed to the communities and local people to make them understand the power generation process using natural gas as fuel.

• 15 sets of placard for inviting people who were interested to join the public hearing were produced.

• 1,000 sets of the meeting supplementary documents were produced, presenting the study results, project details, EIA, mitigative measures for the impacts from the project operation, and channels for communication with the project in cases of complaints or emergency. They were distribute to target groups,containing all information stated in No.7 of the regulation.

(1) Reasons, necessity and objectives of the project

- To support electrical demand sufficiently.

(2) Important issues of the project

- The Nong-Saeng Power Plant project is the combined cycle power plant operating according to the Power Development Plan (PDP 2007) to cope with to the increasing electrical demand for economic growth.


T-EIA208102 7-69 F208102Chap7E-ADB


Prime Minister

Procedure/ Implementation

(3) Operator - The operator is the Power Generation Supply Co., Ltd., who are

doing business on power generation and sell electricity to EGAT

and factories in the area.

(4) Project site - The Nong-Saeng Power Plant project is located at Moo 4, Ban

Huaiba, Nong-Kob Sub-district in Nong-Saeng District of

Saraburi.

(5) Procedure and project

development period

1. At present, the project is preparing the EIA report to submit to

ONEP and authorized governmental offices for approval.

2. Construction is planned to start in the your 2010. The

construction period is about 30-36 months.

(6) Output and outcome of the

project

- Output: power generation capacity of 1,600 MW.

- Outcome: Reinforcement of electrical energy security and

supply of electricity to be sufficient for the country demand.

(7) Potential impact on people

living or making a living in the

site nearby area and public,

including mitigative measures

or healing measures for

troubles and damages caused

by the impacts.

1. Evaluation of major impacts which are potentially caused by the

project, such as

Construction period

- Dust impact in the power plant construction area,

- Low level of noise impact resulting from the power plant

construction,

- Low level of impacts caused by sanitary wastewater from the

workers and soil sediment leaching by storm water which was

due to

• The construction workers commute to work.

• The toilets are installed at a distance of 30 meters away from

public water resource.

• The effluent from various activities is stored in the holding

pond without discharging to public water resources.

- The traffic is slightly increased. The traffic condition is still

good.

- More employment and trading cause income to communities.


T-EIA208102 7-70 F208102Chap7E-ADB


Regulation of the Office of

Prime Minister


Operation period - The air quality impact of the project of the project on the

communities is low and acceptable because the maximum concentrations of the air pollutants are much lower than the standard value.

- The noise level impact of the project on the community is low because the noise level generated by the project does not increase the community noise level.

- The effluent from cooling towers is stored in a holding pond before being discharged.

- The traffic is slightly increased. The traffic condition is still good.

- More employment and trading cause income to communities. - In case of natural gas leakage and ignition, the impact radius is

limited within the power plant area. 2. Important environmental mitigative measure - Using natural gas as main fuel. - Installation of air pollution control system. - Installation of continuous emission monitoring system to mesure

the concentrations of oxides of nitrogen sulfur dioxide, particulates and oxygen.

- Control the stack emission rates not to exceed the standard. - Recruitment of qualified personnel to control the air pollution

control system. - Installation of noise reduction equipment to reduce the noise

generated from machines and regular checking of their performance.

- Installation of cooling towers to reduce the effluent temperature before flowing to the holding pond of the project,

- The treated effluent is controlled to comply with the effluent standard before being drained to public water resources.,

- The garbage and solid wastes are kept in covered bins before disposal by an authorized agency.

- Designation of regulation for vehicles entering and exiting the power plant to prevent accidents.


T-EIA208102 7-71 F208102Chap7E-ADB


Regulation of the Office of Prime Minister


- Setting up the measures of occupational health and safety for working, such as measures for management of occupational health and safety, and measures for fire prevention and fire extinguishing system.

- Preparation of emergency plan and conducting the drill at least once a year.

- Giving priority to the recruitment of the locals. - Broadening of the public relation of the project and the

mitigative measures for impacts and deeply increasing of content by making community networks,

- Preparation and distribution of the documents of the project details and pollution prevention system which are easily understood,

- Organizing the power plant visit for community leaders and communities continously,

- Organizing public interest activities.

(8) Budget estimation in case that the governmental office conducts the project by itself. The budget sources shall be specified.

- Construction of the Nong-Saeng Power Plant uses the budget corresponding to the company business plan.

No. 8 In the public hearing, the governmental office shall aim to make people understand correctly about the governmental project and gather public opinion on the project, troubles and damages that may affect the people. The governmental office may listen to public opinion and give information to the people simultaneously.

- For all public hearing stages organized by the study team, it is aimed to make people understand correctly by the following jobs:

• Giving information by using several kinds of public relation

media suitable for target groups and situation. The media

include meeting supplementary documents, leaflets and

presentation of information via human media for the whole

study period,

• Making knowledge and understanding by organizing many

project presentation stages. The activities included interview of

1,095 individuals, the first public hearing for presentation of the

project for 9 times with 653 participants, the first round of


T-EIA208102 7-72 F208102Chap7E-ADB


Prime Minister


touring consisting of 13 times, and the second round consisting of 6 times with totally 2,218 participants, the second public hearing for presentation of the study results for 10 times with 1,005 participants the meeting with occupational group for 1 time with 20 persons, the meeting for requesting of permission from Nong-Kob TAO for 1 time with 28 persons and the public stage for listening to people opinion for 1 time with 1,670 participants. The total participant was 6,689 persons.

• For all stages of listening to opinion and suggestion, the participants were encouraged to ask questions, give suggestion and discuss about the project. For the listening to individual opinion and question, were noted and used later for making the process of participation in the project for all target groups.

• The collection of people opinion about the project, troubles and damages that might affect the people were conducted by many means as follow : : Opinion expression by standing up in the meeting (collected

by note or tape recorder), : Opinion expression via an evaluation form given in the

meeting, : Opinion expression via a questionnaire for the survey of

socio-economics and public opinion. - The results of opinion expression were collected and used for

setting mitigative measures corresponding to the needs and conditions of the communities.

- The results of continuous works on public relation and public participation, from pre-study period through study period and covering all target groups, were correct understanding of people about the project.

- The study team conducted the public hearing and information dissemination simultaneously by using 2 main media:

• Human media are the most effective media. They explained, gave information and answered the questions of the target groups.


T-EIA208102 7-73 F208102Chap7E-ADB


Prime Minister


• Documental media are used for making understanding. They included meeting supplementary document, leaflet and Power Point presentation.

No. 9 The public hearing as stated in No. 8 may use any mean or many means as follows: (1) Opinion survey by - Individual interview. - Allow opinion expression via

post, telephone or fax, internet or others.

- Allow people to get information and express the opinion to the governmental office being responsible for the project.

- Sub-group meeting.

The work on public hearing and public relation of the project applied integrated methodologies that suitable for the targeted groups; - Interview of 1,095 family samples, - Meeting for listening to community leaders to inform the project

was organized for 9 times with 653 participants. - The public hearing for presentation of the study results consist of

• Listening to community opinion was organized for 10 stages with 1,005 participants.

• The public stage was joined by 1,670 persons.

(2) Discussion by - Public hearing - Public debate - Information sharing - Workshop - Meeting of representatives of

groups of relevant people or stakeholders

(3) Other means assigned by the permanent secretary of the Office of the Prime Minister

No. 10 The governmental office may conduct public hearing by using other means, apart from those stated in No. 9, that make the public hearing meet the objectives given in No. 8, it is allowed to do so.

- The work on public hearing met the objectives. There was no need to use the other methods.


T-EIA208102 7-74 F208102Chap7E-ADB


Prime Minister


After the wok done, it shall be

reported to the office of

permanent secretary of the

Office of the Prime Minister.

No. 11 In the public hearing,

the governmental office shall

announce to public so they

understand the procedure,

duration, place and other

details sufficient for people to

understand and be able to

express opinion.

The announcement stated in

the first paragraph shall be

posted openly on information

boards of the governmental

offices and the project site for

at least 15 days before the

public hearing and it shall be

posted on the internet website

of the office of permanent

secretary of the Office of the

Prime Minister.

• Before conducting all public hearing meetings, the study team

posted placards to invite stakeholders and people who were

interested to join the meeting. The announcement was posted

for about 15 days before the public hearing. The placards were

posted on the information boards of the communities in which

the public hearing was organized. The posting places included

information boards in TAO/MD in the study area, information

boards of Nong-Saeng, Nong-Kae and Pachee District offices.

No. 12 After public hearing,

the governmental office shall

conclude the results and

announce to public within 15

days after the meeting.

- The study concluded the public hearing results and posted the

conclusion on the information boards in TAO/MD in the study

area, information boards of Nong-Saeng, Nong-Kae and Pachee

District offices.

No. 13 After finishing the

public hearing, if the operation

of the governmental project

may cause impacts to people

- Power Generation Supply Co., Ltd., has policy on operation of

mass communication in the project area from pre-construction

period to construction period and through the whole operation

period. The missions are


T-EIA208102 7-75 F208102Chap7E-ADB


Prime Minister


other that the data given to

people as stated in No. 7 (7)

and it is necessary to carry on

the project, the governmental

office shall designate suitable

mitigative measure or healing

measures for more troubles

and damages resulting from

the impacts before starting the

project. This shall be

announced to public according

to the second paragraph of No.

11.

• To distribute the project information and construction

information every periods.

• To listen to opinion and suggestion from people and to give answers to concerns of people about the project operation activities.

• To accept complaints or damages resulting from construction activities and during operation period, and to coordinate with relevant persons for solving and healing the troubles/damages occurred.

• Keep watching and asking subcontractors to implement the environmental mitigative measures seriously.

Nos. 14, 15, 16 explain details

of practical method for the

Office of the Prime Minister.


T-EIA208102 7-76 F208102Chap7E-ADB

that the project was not able to use coal as fuel. The contract for natural gas purchasing

with PTT caused less concern. However, the Nong-Saeng Power Plant Project must keep

organizing of public hearing and mass communication continuously in order to provide

information about environmental management, to listen to people’s opinion and to

encourage participation with the project. The activity running must be in the forms of

interest sharing, collaboration and participation, community watching. These will make the

project development be successful and accepted by the communities. Moreover, based on the consultations with local communities, below are the

highlighted requests from local communities around the project area for PGS to implement:

(1) Complete the construction of the road in the Project site prior to the

commencement of Power Plant Construction

(2) Support the local communities to set up Civil Defense Volunteer to

manage and supervise the traffic during the construction of the Power Plant

(3) Create the registration records of the Contractor’s labors

(4) Provide the waterworks for the local community

(5) Allow the People Participation Committee to inspect the environmental

impacts of the Power Plant

In addition to the requests from local communities, PGS has also developed the

CSR program to promote strong awareness of responsibility towards the local communities

since PGS is committed to conducting its business in conformity with good corporate

governance, local culture, and relevant environmental laws and regulations. Below are the

highlighted CSR Programs:

(1) Set up Power Development Fund to improve quality of life of local

communities around the Power Plant

(2) Donate 21 million baht/year for local communities for local

communities and environmental development

(3) Publish the 5,000 magazines quarterly to publicize the news and

information of the Power Plant to local residents in 12 sub-districts of Nong Saeng District,

Nong Khae District and Pha Chee Disitricts

(4) Broadcast the news and information of the Power Plant through local

radio every weekday from 10:00 pm to 12:00 am

(5) Participate and support the fund for events and activities to enhance local

culture, natural resources, environment, education, public health, religious, sports and


T-EIA208102 7-77 F208102Chap7E-ADB

occupation

(6) Take government officers, community leaders and community

representatives to visit existing power plants such as KK2 Power Plant, Wang Noi Power

Plant, Rayong Power Plant, etc

(7) Frequently meet local people to make them understand about any

concerns of the Power Plant

PGS has been supporting funding and activities of several local society groups

such as women group, occupation development group, elderly people group, public health

volunteering group, civil defense volunteer group, farmer group, etc to improve the quality

of life of the local people.

Apart from local society groups, NGOs have never requested any assistance

from the Project; however, if they would like to get assistance from the Project, PGS is

willing to support them if their requests are beneficial to the local communities.

Environmental Report for submittal to ADB Nong-Saeng Power Plant Project Chapter 8 Power Generation Supply Co., Ltd. Grievance Redress Mechanism

T-EIA208102 8-1 F208102Chap8E

Chapter 8

Grievance Redress Mechanism

The flow charts of complaint receiving/follow-up actions and the associated

time frames are as shown in Figures 8-1 and 8-2.

Local people can directly contact with PGS through telephone, People

Participation Committee, CSR team and TAO office. PGS will try to solve the problem as

soon as possible after receiving complaint. Apart from those channels, PGS has already

established the Communication Coordination Center (“CCC”) to receive the grievance

from the public including local residents. PGS will provide Grievance Boxes and put them

at the CCC, TOA, Community Leader’s houses for everyone to send inquiries to PGS. The

officers from CCC will collect the inquiry every day and PGS will inform the public about

the progress of grievance mitigation by following methods within 24 hours for the urgent

issues and 7 days for the non-urgent issues:

(1) Post the progress announcement at TAO

(2) Post the progress announcement at public relation board in front of the

Power Plant

(3) Broadcast the progress through local radio

(4) Inform the progress directly to the grievant

(5) Summarize the progress and conclusion in newsletter to be distributed in

local communities

(6) Issue letters to TAO, Community Leaders and related government

organization

(7) Inform local people through the local community meeting

The affected people can inform PGS in every matter that they get affected from

the Project including any inconvenience occurred from the construction workers.


T-EIA208102 8-2 F208102Chap8E

Figure 8-1 : Chart of the general complaints

Appellant

Mass Communication coordination center / complaintsNatural Gas Pipeline to Nong Saeng Power Plant Project

Organize the relevant authorities responsible

Presented to the Executive to delegate the responsibility to resolve the problem

Monitored continuously/Summary and report to notify local

authorities

Monitoring Committee to resolve complaints..

Check the cause / effects / complaints

Report results back to the complainant

24 hours

24 hours

24 hours

48 hours

48 hoursPeriod from the start to inform the

result of the complaint

within 7 days

Report back to the initial complaint within 48 hours

Note : If the complaint can not complete corrective action within 7 days, progress in solving the problem will be notify the complainant every 3 days.

to Nong Saeng Power Plant Project


T-EIA208102 8-3 F208102Chap8E

Appellant

Mass Communication coordination center / complaintsNatural Gas Pipeline to Nong Saeng Power Plant Project

Presented to the Executive.To command the problem

Monitored continuously/Summary and report to notify local

authorities

Report results back to the complainant

24 hours

Resolve within 24

hours

Figure 8-2 : Chart of the emergency complaints

to Nong Saeng Power Plant Project

Environmental Report for submittal to ADB Nong-Saeng Power Plant Project Chapter 9 Power Generation Supply Co., Ltd. Environmental Management Plan

T-EIA208102 9-1 F208102Chap9E

Chapter 9

Environmental Management Plan The Nong-Saeng Power Plant Project of Power Generation Supply Co., Ltd. is

located in an area of approximately 570 rai which is allocated into 2 portions of areas: the

power plant area of approximately 300 rai which is located in Moo 4 of Ban Huaiba,

Nong-Kob Sub-district, Nong-Saeng District of Saraburi Province; and the reservoir area

of approximately 270 rai which is located in Moo 7 of Ban Thamsinthusopa, Nong-Namsai

Sub-district, and Moo 2 of Ban Klong, Khok Muang Sub-district, Pachee District of Phra

Nakhon Si Ayutthaya Province. The Nong-Saeng Power Plant utilizes natural gas as the

main fuel and diesel oil as backup fuel. The electrical generating capacity is approximately

1,653 MW, comprising two 826.6 MW blocks. About 1,600 MW of the generated

electricity will be sold to the Electricity Generating Authority of Thailand (EGAT) and the

remaining 53 MW will be used within the Nong-Saeng Power Plant. The main components

of the project includes four combustion turbine generators (CTG), four heat recovery steam

generators (HRSG) and two steam turbine generators (STG). The generated electricity is

sold to EGAT via the 500 kV Pachee sub-station and the transmission line which is

connected to EGAT’s Tatakoe-Wangnoi transmission line. The consumption of natural gas

as the main fuel of the project to be supplied by PTT (Public) Co., Ltd. is approximately

265.18 million cubic feet per day; and diesel oil of approximately 6.594 million liters per

day as backup fuel. The raw water is pumped from the Pa-Sak River, upstream of the Phra

Rama Six Dam, and stored in the 1,600,000 cubic meter reservoir before use. The

wastewater generated by the project is treated and reused. Only the effluent discharged

from the cooling tower is drained into the holding pond before discharging into Klong

Huaiba (Klong Ngu-Loem). The quality of the discharged water meets the effluent

standard under the Notification of the Ministry of Industry, Issue No.2 (1996), entitled

“Characteristics of effluents discharged from factories” and the Decree of the Royal

Irrigation Department No. 883/B.E. 2532, entitled “The prevention and mitigation of the

discharge of low quality water into the irrigation waterways and the waterways connected

to the irrigation waterways in the irrigation project areas.”


T-EIA208102 9-2 F208102Chap9E

The implementation of the project may induce impacts on the environment,

health and life way of the people living in the nearby areas. From the review of the

environmental impact assessment report by the EIA Expertise Committee, the following

mitigative measures were stipulated for implementation:

(1) To implement the environmental mitigative measure and environmental

monitoring programme formulated in an environmental action plan as specified in the

environmental impact assessment report of Nong-Saeng Power Plant Project. The

measures shall be used as a guideline to be supervised, controlled, followed up and

inspected by the concerned government agencies, public and related organizations.

(2) To specify the details of the measures under the environmental action

plan in the contract between the project and the contractor, and to strictly implement these

measures for their effectiveness in practice.

(3) To report the results of performance under the environmental action plan

to the permitting agencies of Saraburi Province, Phra Nakhon Si Ayutthaya Province, and

the Office of Natural Resources and Environmental Policy and Planning (ONEP) for their

review according to the timetable specified in the action plan and guideline for submitting

the environmental monitoring results of ONEP.

(4) To routinely maintain and inspect the operation of the cooling system so

as to keep it in good and safe condition for the operators and the public living in the nearby

areas.

(5) In case the environmental monitoring results demonstrate a trend of an

induced problem including the complaints (caused by the project implementation) from the

communities, the company is required to promptly take the improvement and corrective

actions for such problem and report every event to the permitting agencies of Saraburi

Province, Phra Nakhon Si Ayutthaya Province, and the Office of Natural Resources and

Environmental Policy and Planning so as to coordinate the cooperation for solving the

problem.

(6) If the company purposes to modify the details of the project and/or the

environmental action plan, it must notify the permitting agencies about such modification

for their review as follows:

- If the permitting agencies regard such modification as not having an

effect on the impact assessment in the approved EIA report, the

company shall notify the Office of Natural Resources and

Environmental Policy and Planning about this matter.


T-EIA208102 9-3 F208102Chap9E

- If the permitting agencies regard such modification as having an effect

on the impact assessment in the approved EIA report, the company

shall submit the data of the impact study and assessment results of

such modification in details and in comparison with the original data

to the EIA Expertise Committee for approval before implementation.

(7) In case there is any project-related complaint from the communities, the

Company must promptly solve the problem (addressed in the complaint) and record it as a

report.

(8) If the project is not implemented within 2 years from the date of the letter

from ONEP notifying the results of the review and approval of the environmental impact

assessment report by the EIA Expertise Committee, the project shall revise the data and

environmental measures and submit them to ONEP for review.

(9) When the project is operated at the steady state, and it is found that the

aforementioned emission rates are lower, the project is required to use them as the control

values and notify ONEP promptly.

PGS will be required to perform external monitoring and submit the semi-

annual reports to ADB during construction phase and operation phase.

The implementation of the environmental mitigation and environmental quality

monitoring measures (specified as the environmental action plan) consists of 13

environmental action plans, the details of which are as follows:

(1) Action Plan on Air Quality

(2) Action Plan on Noise Level

(3) Action Plan on Surface Water Hydrology and Surface Water Quality

(4) Action Plan on Forestry and Wildlife Ecology

(5) Action Plan on Aquatic Ecology and Fishery

(6) Action Plan on Land Use

(7) Action Plan on Water Usage

(8) Action Plan on Transportation

(9) Action Plan on Drainage and Flood Control

(10) Action Plan on Solid Wastes

(11) Action Plan on Occupational Health and Safety

(12) Action Plan on Socio-economic

(13) Action Plan on Public Relation and Public Participation

Environm

ental Report for submittal to AD

B N

ong-Saeng Power Plant Project

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_revised (4)

Mitigative Measure

Nong-Sang Power Plant Project of Power Generation Supply Co., Ltd.

Nong-Kob Sub-district, Nong-Saeng District of Saraburi Province

Environmental Impacts Mitigative Measures Monitoring Programme Responsibility

1. General Measure (1) To implement the environmental mitigative

measure and environmental monitoring programme

formulated in an environmental action plan as

specified in the environmental impact assessment

report of Nong-Saeng Power Plant Project. The

measures shall be used as a guideline to be

supervised, controlled, followed up and inspected by

the concerned government agencies, public and

related organizations.

(2) To specify the details of the measures under the

environmental action plan in the contract between the

project and the contractor, and to strictly implement

these measures for their effectiveness in practice.

(3) To report the results of performance under the

environmental action plan to the permitting agencies

of Saraburi Province, Phra Nakhon Si Ayutthaya

Province, and the Office of Natural Resources and

Environmental Policy and Planning (ONEP) for their

review according to the timetable specified in the

action plan and guideline for submitting the

environmental monitoring results of ONEP.

- Power Generation

Supply Co., Ltd.

Environm


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_revised (4)

Mitigative Measure (Cont’d)


1. General Measure (Cont’d) (4) To routinely maintain and inspect the operation

of the cooling system so as to keep it in good and

safe condition for the operators and the public living

in the nearby areas.

(5) In case the environmental monitoring results

demonstrate a trend of an induced problem including

the complaints (caused by the project

implementation) from the communities, the company

is required to promptly take the improvement and

corrective actions for such problem and report every

event to the permitting agencies of Saraburi Province,

Phra Nakhon Si Ayutthaya Province, and the Office

of Natural Resources and Environmental Policy and

Planning so as to coordinate the cooperation for

solving the problem.

(6) If the company purposes to modify the details of

the project and/or the environmental action plan, it

must notify the permitting agencies about such

modification for their review as follows:

- If the permitting agencies regard such

modification as not having an effect on the

impact assessment in the approved EIA report,

the company shall notify the Office of Natural

Resources and Environmental Policy and

Planning about this matter.

- Power Generation

Supply Co., Ltd.

Environm


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1. General Measure (Cont’d) - If the permitting agencies regard such

modification as having an effect on the impact

assessment in the approved EIA report, the

company shall submit the data of the impact

study and assessment results of such

modification in details and in comparison with

the original data to the EIA Expertise

Committee for approval before

implementation.

(7) In case there is any project-related complaint

from the communities, the Company must promptly

solve the problem (addressed in the complaint) and

record it as a report.

(8) If the project is not implemented within 2 years

from the date of the letter from ONEP notifying the

results of the review and approval of the

environmental impact assessment report by the EIA

Expertise Committee, the project shall revise the data

and environmental measures and submit them to

ONEP for review.

(9) When the project is operated at the steady state,

and it is found that the aforementioned emission rates

are lower, the project is required to use them as the

control values and notify ONEP promptly.

- Power Generation

Supply Co., Ltd.

Environm


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Environmental Impacts Mitigative Measures Monitoring Programme Responsibility 2. Air Quality Pre-Construction Phase

- The ambient air quality monitoring systems (AAQMS) are installed in 4 community areas including Ban Thamsinthusopa, Ban Nong-Tangbun, Ban Nong-Ngu-Loem and Ban Khok Daeng for continuous monitoring of the concentrations of total suspended particulates, PM-10, sulfur dioxide, nitrogen dioxide, wind speed and direction, and ambient temperature.

Pre-Construction Phase Ambient Air Quality Ambient Air Quality Monitoring Systems (AAQMS) Parameter - TSP (average 24-hr) - PM-10 (average 24-hr) - NO2 (average 1-hr) - SO2 (average 1-hr and 24-hr) - Wind speed and wind direction

- Power Generation Supply Co., Ltd.

Construction Phase - To spray water, at least twice a day, on the soil

piles and the areas where excavation of soil is taking place, particularly on the communication routes within the project area.

- To cover the piles of soil and scrap materials with canvases or plastic sheets to prevent the soil dispersion during windy period.

- To have good housekeeping in the construction area.

- To limit the speed of motor vehicles within the construction area not to exceed 20 kilometers per hour.

- To limit the speed of the contractor’s motor vehicles on public roads not to exceed 60 kilometers per hour.

- Ambient temperature Location - Ban Tamsinthusopa - Ban Nong-Tangbun - Ban Nong-Ngu-Loem - Ban Khok Daeng Duration/Frequency - 24 hours continuously Analytical Method - TSP and PM-10 : Beta Ray or Taper Element

Oscillating Microbalance - NO2 : Chemiluminescence Method - SO2 : UV Fluorescence Method / Pararosaniline - Wind speed and wind direction : Cup Anemometer /

Anodized Aluminum Vane/Ultrasonic Anemometer - Temperature : Temperature Sensor Expense - Installation cost for AAQMS, approximately

10,000,000 baht - Maintenance cost for AAQMS, approximately

1,000,000 baht

Environm


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Mitigative Measure (Cont’d) Environmental Impacts Mitigative Measures Monitoring Programme Responsibility

2. Air Quality (Cont’d) - To well-cover the transported materials/articles for the entire transportation routes.

- To provide the workers for cleaning the traffic surface of public road in front of the project area after the trucks going in or out of the project area.

- To clean vehicle wheels before leaving the construction area in order to reduce the amount of soil particles (stuck on the wheels) falling off onto the traffic surface.

- To prohibit rubbish burning within the construction area.

To Audit AAQMS Parameter - TSP (average 24-hr) - PM-10 (average 24-hr) - NO2 (average 1-hr) - SO2 (average 1-hr and 24-hr) - Wind speed and wind direction - Ambient temperature Location - Ban Tamsinthusopa - Ban Nong-Tangbun


Operation Phase - To install NOx control systems, i.e., the dry low

NOx combustion system and water injection system for controlling NOx emission when natural gas and diesel oil are used as fuel respectively. • To control the stack emission rates, when using

natural gas as fuel, in accordance with the designed values for the 100% operating load as follows:

• Sulfur dioxide - not to exceed 10 ppm at 7% O2.

- Ban Nong-Ngu-Loem - Ban Khok Daeng Duration/Frequency - Once a year Analytical Method - To audit AAQMS in accordance with US.EPA.

standard or other method recommended by the concerned government agency.

Expense - 500,000 baht per time

or not to exceed 7.74 grams per second stack.

• Oxides of nitrogen - not to exceed 70 ppm at 7% O2.

or not to exceed 38.93 grams per second per stack.

Construction Phase Ambient Air Quality Ambient Air Quality Monitoring Systems (AAQMS) Parameter - TSP (average 24-hr) - PM-10 (average 24-hr) - NO2 (average 1-hr)

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2. Air Quality (Cont’d) • Particulate Matter - not to exceed 20 per cubic meter at 7% O2.

or not to exceed 5.92 grams per second per stack. - To control the stack emission rates, when using

diesel oil as fuel, in accordance with the designed values for the 100% operating load as follows: • Sulfur dioxide - not to exceed 30 ppm at 7% O2

or not to exceed 22.41 grams per second per stack.

• Oxides of nitrogen - not to exceed 120 ppm at 7% O2. or not to exceed 64.37 grams per second per stack.• Particulate matter - not to exceed 35 at 7% O2. per cubic meter

or not to exceed 9.99 second per stack. - To install the continuous emission monitoring

systems (CEMs) at the HRSG stacks for continuously monitoring the emission rates and thus controlling the air emission sources of the

- SO2 (average 1-hr and 24-hr)

- Wind speed and wind direction

- Ambient temperature Location - Ban Tamsinthusopa - Ban Nong-Tangbun

- Ban Nong-Ngu-Loem - Ban Khok Daeng Duration/Frequency - 24 hours continuously Analytical Method - TSP and PM-10 : Beta Ray or Taper Element

Oscillating Microbalance - NO2 : Chemiluminescence Method - SO2 : UV Fluorescence Method / Pararosaniline - Wind speed and wind direction : Cup Anemometer/

Anodized Aluminum Vane / Ultrasonic Anemometer

- Temperature : Temperature Sensor

Expense - Maintenance cost for AAQMS, approximately

1,000,000 baht


power plant. The parameters to be monitored include oxides of nitrogen, sulfur dioxide, particulates, carbon monoxide and oxygen.

- To audit the continuous emission monitoring systems (CEMs) once a year.

Operation Phase Stack Emission from Power Plant Continuous Emission Monitoring System (CEMs) Parameter - Oxides of nitrogen (NOx)

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2. Air Quality (Cont’d) - To install a monitor screen, at a location in front of

the project, for displaying the results of stack

emission and ambient air quality monitoring.

- To install a warning system for the case that the

emission rates approach the designed values.

- To prepare the measures and operating procedures

for the case the emission rate reduction is required,

e.g., reduction of generating capacity. However, in

case the air emission rate(s) still exceeds the

designed value, the power plant shall be shutdown.

- To shutdown the machinery in case of NOx control

system failure.

- To routinely inspect and maintain the ambient air

quality monitoring systems (AAQMS) which are

installed in 4 community areas so that these

equipment can accurately monitor the

concentrations of total suspended particulates,

PM10, sulfur dioxide and nitrogen dioxide in the

ambient air.

- To improve the condition of Wat Nongkratart and

Wat Nongkratart School areas (currently covered

with sand) by covering the pavements with

concrete blocks with a total surface area of

approximately 500 square meters, and paving the

- Sulfur dioxide (SO2)

- Particulate matter (PM)

- Carbon monoxide (CO)

- Oxygen (O2)

- Gas flow rate

Location

- 4 HRSG stacks of Nong-Saeng Power Plant

Duration/Frequency

- During operation period

Monitoring Method

- According to Notification of Ministry of Industry

(B.E.2544), specifying that every factory must

install an instrument for automatic monitoring of

stack emission.

Reporting

- To summarize the monitoring results and submit to

ONEP every 6 months. In case of non-

compliances, the duration of exceedance, causes

and corrective actions are to be reported.

Expense - Installation cost for CEM, approximately

8,000,000 baht - Maintenance cost for CEM, approximately 200,000

baht

- Power Generation

Supply Co., Ltd.

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2. Air Quality (Cont’d) roadways with concrete or asphalt with a total

surface area of 2 x 260 square meters in order to

reduce dust dispersion.

- To promote organic agricultural practice for local

farmers by providing the training course on

“Agricultural development to organic agricultural

practice” with an aim to reduce their production

cost (investment cost) by not burning straws and

rice stubbles but fermenting rice straws to produce

organic fertilizer. The fertilizer will be used for soil

conditioning of paddy fields under the

methodology of “New Agricultural Theory” which

encourages the farmers to lessen such burning of

straws and rice stubbles and thus alleviate the

generated dust concentration.

- To monitor the health examination results within 1

year after the commencement of the project

operation.

To compile the morbidity data every year after the

project operation and to compare the morbidity

statistics of the local residents living around the

project area before and after the project

implementation

To Audit CEMs (Audit/RAA/RATA) Parameter

- Oxides of nitrogen (NOx)




Oxygen (O2)Location


Duration/Frequency

- Once a year

Measurement Method

- To audit (RATA/RAA) CEMs in accordance with

US. EPA. standard or other method recommended

by the concerned government agency.

Expense - 500,000 baht per time Occasionally Monitoring

Parameter


- Oxides of nitrogen (NOx)



- Oxygen (O2)

Location


- Power Generation

Supply Co., Ltd.

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2. Air Quality (Cont’d) Duration/Frequency

- Twice a year

Measurement Method

- Sulfur dioxide (SO2) : US. EPA. Method 6/6C

- Oxides of nitrogen (NOx) : US. EPA. Method 7/7E

- Particulate matter (PM) : US. EPA. Method 5

- Carbon monoxide (CO) : US. EPA. Method 10

- Oxygen (O2) : US. EPA. Method 3A

Expense

- 200,000 baht per time

In addition to the fixed monitoring stations, at least

for first few years of full operations, a mobile air

quality monitoring station will be provided (if

required) and operate it in conjunction with air

quality model to capture ambient air at the likely

areas of maximum ground level concentration.

3. Noise Construction Phase

- To install iron or zinc sheets of the minimum

thickness of 1.3 millimeters around the

construction area, particularly on the side nearby

the residential areas of Ban Thamsinthusopa and

Ban Nong-Tangbun communities, and to construct

earth dike of 4.5 meters high above the ground

level, around the project area.

- Piling and construction activities generating loud

noises shall be carried out during daytime only

Construction Phase

Parameter - Leq 24

- Ldn

- L90

Location

- Ban Tamsinthusopa

- Ban Nong-Tangbun

- Ban Nong-Ngu-Loem

- Ban Khok Daeng

- Power Generation

Supply Co., Ltd.

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3. Noise (Cont’d) (0 6.00 am-07.00 pm.) with a notice to inform the

communities at least 2 weeks in advance.

- To select and use the equipments/machineries and

construction technique(s) that cause the minimum

noise levels.

- To avoid using the equipments or machineries

- The fence of the project or the nearest house to the

project

- A chicken farm within 1 km radius from the project

site.

- A chicken farm within 1 to 2 km radius from the

project site

- Power Generation

Supply Co., Ltd.

simultaneously that cause the loud noises

continuously for a long period of time.

- To reduce the number of equipments/machineries

used in the area adjacent to each other.

To install the frequently movable (back and forth)

equipments/machineries in the sensitive areas as

for as possible.

- To stop the engines or turn off the

equipments/machineries when they are not in use

every time.

- To require the contractor to install the noise

Duration/Frequency

- Twice a year for 5 consecutive days and coincide

the measurements with the peak construction

activity/loud noise generating activity during that

quarter.

Measurement Method - Integrated Sound Level Measurement or equivalent

method recommended by the concerned

government agency. Expense


reduction equipment, e.g., silencers or mufflers at

the loud noise equipments/machineries used in the

construction activities and to regularly check the

efficiency of these noise reduction equipment.

Operation Phase

- Leq 24

- Ldn

- L90

- To inspect and maintain the equipments,

machineries and engines to be in good condition by

scheduling the inspection of heavy machineries at

least once a month.

- To post a warning sign in the loud noise areas and

Location

- Ban Tamsinthusopa

- Ban Nong-Tangbun

- Ban Nong-Ngu-Loem

- Ban Khok Daeng

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3. Noise (Cont’d) to enforce the workers to wear noise protective

devices, such as ear muffs, ear plugs, etc. before

entering the loud noise workplace.

- The fence of the project or the nearest house to the

project .

- A chicken farm within 1 km radius from the project

- Power Generation

Supply Co., Ltd.

Operation Phase

- To install the combustion turbines and loud noise

equipments such as gas compressors within the

building(s) equipped with acoustic walls and

enclosures.

- Loud noise machineries of Nong-Saeng Power

Plant Project to be installed must be equipped with

silencers at the pipe ends where loud noise may be

generated.

- To routinely check the efficiency of silencers.

- To cover up the combustion and steam turbines in

order to reduce their noise levels.

site.

- A chicken farm within 1 to 2 km radius from the

project site.

Normally, startup and shutdown will occur

infrequently as IPP power plant are operated as base

load plants

Duration/Frequency Twice a year for 5 consecutive days.

Measurement Method - Integrated Sound Level Measurement or equivalent


government agency.

Expense


- To inspect the equipments and machineries in order

to keep them in good condition by clearly

establishing a maintenance plan for each equipment

and machinery.

- To post the signs or symbols in the areas where

noise levels exceed 80 dB(A).

- To provide the personal protective devices, e.g., ear

muffs or ear plugs for the employees working in

the area where noise levels exceed 80 dB (A).

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3. Noise (Cont’d) - To specify zone of loud noise area, such as the

areas of HRSG, combustion chamber of gas

turbine, and gas turbine generators; along with

posting the warning signs. The workers working in

such areas have to wear the noise protective

devices, such as ear plugs, ear muffs, etc.

4. Surface Water Hydrology

and Surface Water

Quality

Measure on Surface Water Hydrology

Construction Phase

- In the construction area prior to making the land

preparation and the construction of buildings or

structures, an earth dike of 4.5 meters high and a

drainage ditch on the outside of the dike are to be

constructed to prevent the sediment from being

washed away from the construction area and to let

the storm water from the rainfall over the areas

outside the project site flow and drain through

without being obstructed by the project area.

- For the storm water to be pumped and drained from

Construction Phase

Surface Water Quality

Parameter

- pH

- Suspended Solids (SS)

- Total Dissolved Solids (TDS)

- BOD5

- Fecal Coliform Bacteria

Location

- Klong Huaiba (Klong Nong-Ngu-Loem)

• 500 meters upstream of Nong-Saeng Power

Plant Project Site.

- Power Generation

Supply Co., Ltd.

the inside to the outside of the construction area,

the sump must be provided for sediment settling

(with the retention time of not less than 3 hours)

before discharging to the outside

• Discharge point of the project.

• 500 meters downstream of the project’s

discharge point.

Duration/Frequency

Operation Phase

- For the cooling water blow down from the cooling

system to be drained into Khlong Huaiba (Khlong

- Every 3 months

Expense

Included in the construction cost.

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and Surface Water

Quality (Cont’d)

Nong-Ngu-Loem), the water level of this Khlong is

to be inspected at the discharge point. If the water

level of this canal is found to be lower than 3.5

meters (5.5 meters msl.), the project can drain the

cooling water blow down. If the water level is close

to 3.63 meters (5.63 meters msl.), the project must

stop draining the cooling water blow down.

Effluent quality

Parameter

- pH

- Temperature



- BOD5

- Power Generation

Supply Co., Ltd.

- The reservoir capacity is 1.6 million cubic meters.

Water consumption during full load operation at

design condition will be 46,932 cubic meters per

day. The reservoir capacity is enough for 34 day

operation at such condition.

- The reservoir will retain the effluent when the

water level of Khlong Huaiba (Khlong Nong-Ngu-

Loem) is higher than 3.5 meters (5.5 meters msl.).

- Dredging to remove the weeds and sediment in

Khlong Huaiba (Khlong Nong-Ngu-Loem) at the

- Oil & Grease

- TKN

- Free Chlorine

- Fecal Coliform Bacteria

Location

- Holding Pond of Nong-Saeng Power Plant

Duration/Frequency

- All months during construction period

Expense

- Included in the construction cost.

discharge point regularly Operation Phase

Measures on Surface Water quality

Construction Phase

- The sanitary wastewater from the construction

workers must be treated to meet the effluent quality

standard, i.e., the BOD value of not more than 20

milligrams per liter and the total suspended solids

of not more than 30 milligrams per liter.

Surface Water Quality

Parameter

- Temperature

- pH



- BOD5

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4. Surface Water Hydrology and Surface Water Quality (Cont’d)

- The toilets for the construction workers must be not less than 30 meters distance from the surface water resources outside the project area. The wastewater treatment system must be provided for treating the sanitary wastewater so that the quality of treated effluent meets the effluent standard.

- The treated effluent is used for spraying over the construction area and the vacant areas to reduce dust dispersion, but not discharging into Khlong Huaiba (Khlong Nong-Ngu-Loem). It is a must to control and make sure that the garbages and scraps of construction materials are not disposed into the water resources outside the project area. Containers are provided for collecting the solid wastes which are to be sanitary disposed. The workers will be trained on the rules for practice.

- COD - Heavy Metals: Ferric (Fe), Manganese (Mn), Lead

(Pb), Zinc (Zn), Chromium Hexavalent (Cr6+), Copper (Cu) and Nickel (Ni)

Location - Khlong Huaiba (Khlong Nong-Ngu-Loem) • 500 meters upstream of the discharge point of

Nong-Saeng Power Plant Project. • Discharge point of the project. • 500 meters downstream of the project’s

discharge point. Duration/Frequency - Avery 3 months Expense - 20,000 baht per time (analysis only) Effluent Quality Parameter

Operation Phase - The treated effluent from the cooling system of the

project shall meet the effluent standard under the Order of the Royal Irrigation Department No.883/ 2532, entitled “The mitigation of low quality effluent discharge into the irrigation waterways and the waterways connected with them within the irrigation project areas,” and the industrial effluent standard under the Notification of the Ministry of Industry, No.2 B.E.2539 (1996) before draining into Khlong Huaiba (Khlong Nong-Ngu-Loem).

- pH - Temperature - Total Dissolved Solids (TDS) - Suspended Solids (SS) - COD - Oil & Grease - Heavy Metals: Ferric (Fe), Manganese (Mn), Lead

(Pb), Zinc (Zn), Chromium Hexavalent (Cr6+), Copper (Cu) and Nickel (Ni)

- Free Chlorine

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and Surface Water

Quality (Cont’d)

- To make the most possible reuses of the non-

cooling water effluent which is treated, for

example, watering plants, cleaning the machinery,

cleaning floor in the power plant, etc. without

draining to the outside.

- To provide the cooling blowdown ponds to retain

the effluent from the cooling tower for at least 3

days and to install a temperature monitoring system

for continuously measuring the effluent

temperature. If the effluent temperature is higher

than 34 oC, its discharge to the outside must be

halted; and the effluent temperature is to be

reduced not to exceed 34 oC before discharging to

the outside.

- To continuously record the quantities of water to be

pumped from the Pa-Sak River and compare with

the estimated values in the report.

- To provide a budget for supporting the activities of

local administrative organization of the Tambon

which is responsible for the areas along the course

of Klong Huaiba (Klong Nong-Ngu-Loem),

including dredging to remove the weeds/sediment

that may pile up and shallower the canal. This will

help to facilitate the water flow and drainage, and

to alleviate the problems of decomposed and

stagnant water as well as flooding from natural

overflowing of water.

Location - Holding Pond of Nong-Saeng Power Plant before

discharge

Duration/Frequency - Every 3 months

Expense - 40,000 baht per time (analysis only)

Online Monitoring

Parameter

- Temperature

- pH

- Conductivity

Location

- The point prior to draining the effluent to Khlong

Huaiba (Khlong Nong-Ngu-Loem)

Duration/Frequency

- All the time

Monitoring Method

- Continuously monitoring of temperature,

conductivity and pH.

Expense - Installation cost for the online water quality

monitor is approximately 3,000,000 baht.

- Maintenance cost for the online water quality

monitor is approximately 300,000 baht per year.


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and Surface Water

Quality (Cont’d)

- To support the local administrative organization of

the Tambon, in conjunction with the local

residents, to oversee Klong Huaiba (Klong Nong-

Ngu-Loem) and other surface water resources

around the project site, and to manage the

wastewater from the communities by training the

local residents on the treatment of wastewater from

households and livestock using a self-constructed

system, employing the local residents to dredge the

canals, applying herbs as insect repellent to reduce

the toxic substance being discharged into the water

resources, etc.

- Power Generation

Supply Co., Ltd.

5. Forestry and Wildlife

Ecology

Measure on Forestry

Construction Phase

- To prohibit the construction workers from cutting

trees in the areas outside the construction site area.

- After the land preparation for the construction area

is completed, it is required to plant the trees

immediately in the portions of land without any

construction activities and designated as the

project’s green areas.

Construction Phase

Wildlife

Parameter

- Survey of wildlife around the project area

including species, status and abundance

Location

- Within a radius of 5 kilometers around the project

site.

Duration/Frequency

- Power Generation

Supply Co., Ltd.

Operation Phase

- To plant perennial trees or bushes around the

power plant location, reservoir and holding ponds

- Six months from the beginning of the construction.

Expense


with a total area of not less than 5% of the project

area.

Operation Phase

Wildlife

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Ecology (Cont’d)

- To arrange the activities in conjunction with the

local administrative organization of the Tambon

where the project is located and the nearby local

administrative organizations on conservation of

perennial trees, planting perennial trees in public

areas and places such as temples and schools as

appropriate, e.g., on the National Environment

Day, Songkran Day, etc.

Parameter

- Survey of wildlife around the project area for the

study of their diversity, species, abundance and

survival in the project area.

Location

- Within a radius of 5 kilometers around the project

site.

- Duration/Frequency

Measures for Wildlife

Construction Phase - The construction of the project requires cutting

down of big trees which are the habitats of

openbills and egrets. However, these birds only

nest and lay eggs during their mating/breeding

season (around October through April) so there are

no active bird nests on the trees in other months of

the year. Therefore, tree cutting off their

mating/breeding season will not destruct any nests

and baby birds. The implementation of various

activities will not impose any impact on the

wildlife either, and thus it will not be necessary to

require any direct measures for mitigating the

impact on the wildlife and the problem (if any) can

be solved by only selecting the right time for the

activities.

- At the beginning of the project operation and every

3 years thereafter with a survey in each of the rainy

and winter seasons of the year and for a total time

period of 10 years. If the findings do not indicate

any tendency of the project-induced impact, the

survey will be terminated.

Expense


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Ecology (Cont’d)

Nevertheless, the mitigation measures should be

established in order to maintain sustainable

conservation of the wildlife resource as follows:

- The plan for cutting all the big trees in the project

area must be implemented during other months of

the year instead of winter’s months. This will

prevent the destruction of the nests and baby birds

of openbills and egrets, and the parent birds will be

able to find the new places for their nesting so no

impact is imposed.

- Rules will be made to prohibit the workers and

personnel from hunting the wildlife or destructing

the lives of any species of wildlife in the project

area and its vicinity as well as to prohibit the

outsiders from such wildlife hunting.

- Power Generation

Supply Co., Ltd.

Operation Phase

- To plant perennial trees around the boundary of the

project area, the project area and around the

reservoir for bird habitats with a total area of not

less than 5% of the project area.

- To prohibit the workers and personnel from

hunting or trapping the wildlife in the power plant

and reservoir areas of the project.

- To support the arrangement of wildlife

conservation activities of the local administrative

organization of the Tambon, students and the

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5. Forestry and Wildlife Ecology (Cont’d)

public including such title of activities as birds, etc. This should be carried out as appropriate in order to render an opportunity for the local administrative organization of the Tambon to participate and make comments.

6. Aquatic Ecology and Fishery

Construction Phase - To prohibit the construction workers from fishing

in Klong Rapeepatana and Klong Huaiba (Klong Nong-Ngu-Loem) by making rules and posting ‘No Fishing’ signs.

Construction Phase Aquatic Ecology Parameter - Phytoplanktons - Zooplanktons


Operation Phase - To prohibit the employees and workers of the

power plant from fishing in Klong Huaiba (Klong Nong-Ngu-Loem) and Klong Rapeepatana.

- Benthos Location - Klong Huaiba (Klong Nong-Ngu-Loem) 500 meters upstream of Nong-Saeng Power Plant

- To provide breeds of fish, such as snake-head fish and Nile tilapia and release them into Klong Huaiba (Klong Nong-Ngu-Loem).

- To arrange the events of activities, in conjunction with the local administrative organizations of the Tambon around the project site and the public, on the release of fish breeds into the public water resources as appropriate under the suggestion of local residents.

Project Site. • Discharge point of the project. • 500 meters downstream of the project’s

discharge point. Duration/Frequency - Every 3 months throughout the construction period Sampling Method - Phytoplanktons: to be sampled vertically using a

plankton net of approximately 20-60 micron size. - Zooplanktons, fish roes and larva: to be sampled

vertically using plankton nets of approximately 100-200 micron size for zooplanktons and 300 micron size for fish roes and larva.

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6. Aquatic Ecology and

Fishery (Cont’d)

- Benthos: to be sampled using an Ekman Grab

(seabed sediment sampler)

Expense


- Power Generation

Supply Co., Ltd.

Operation Phase

Parameter

- Phytoplanktons

- Zooplanktons

- Benthos

Location

- The Pa-Sak River

• 200 meters upstream of the water pumping point

of Nong-Saeng Power Plant Project.

• Water pumping point of the project.

• 200 meters downstream of the project’s water

pumping point.

- Klong Huaiba (Klong Nong-Ngu-Loem)

• 500 meters upstream of the discharge point of

Nong-Saeng Power Plant Project.

• Discharge point of the project.

• 500 meters downstream of the project’s

discharge point.

Duration/Frequency

• Every 6 months

Expense


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7. Land Use Construction Phase

- To carry out the construction activities only within

the project area and to absolutely prohibit

placing/piling/parking of equipments, machineries,

materials, etc. outside the project area.

- To clearly notify the concerned government

agencies and local residents about the areas to be

used for construction, construction boundary, and

construction schedule at least one month before the

construction activities commence.

- To do the maintenance works on the damaged

traffic surface in order to restore its original

condition as per the requirements of the concerned

government agencies.

- Power Generation

Supply Co., Ltd.

- To control the construction activities as per the

required plan.

- In case the construction involves crossing of the

private roadway(s), additional measures are set up

as follows: - To inform the land owner(s) in advance about the

construction plan and schedule; and after the

pipeline construction in any excavated trench(s) is

completed, the soil must be put back in its original

place. If such work can not be completed within the

same day, metal sheets must be placed over each

excavated trench(s) so that the area can be used for

regular communication.

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7. Land Use (Cont’d) - To string a rope around the construction area adjacent to each of these roadways and also install the lights and post a warning sign.

- To appoint a committee on supervision and control of social performance in order to follow up the construction activities, negotiate with the land owner(s), and to solve the arisen problems. The committee have the following functions: • To inform the communities about the

complaint(s)/problem(s) by posting announcement in the public places (not less than 3 places) within the jurisdiction areas of the related Tambons.


• To inspect all evidences and may invite the experts to jointly investigate in case of complicated problems.

• To inform the communities about the investigation results by posting announcement in the public places (not less than 3 places) within the jurisdiction areas of the related Tambons.

• In case the problem or complaint is caused by the project, the committee will advise the project to solve it and be liable for the resultant damages.

• In case the project is unable to solve the problem, the committee will inform the concerned government agencies, e.g., the Office of Provincial Industry, Administrative Organization of the Tambons, etc.

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8. Water Usage Construction Phase Measures are established to prevent the scraps of construction materials from being washed into Klong Huaiba (Klong Nong-Ngu-Loem) which may cause difficulty in using the irrigation water.

Construction Phase To monitor the construction in order to ensure that no scraps of material are dropped into and obstruct the flow of Klong Rapeepatana and Klong Huaiba (Klong Nong-Ngu-Loem) which will, in turn, obstruct the usage of water from Klong Rapeepatana- Main Canal for irrigation, consumption and factories, and the usage of water from Klong Huaiba (Klong Nong-Ngu-Loem) for agriculture.


Operation Phase A reservoir with the capacity of 1,600,000 cubic meters is to be constructed for water storage of the project and water will be added into this reservoir when the demand for irrigation water is less than the quantity of river water at the water pumping point during May through November. Coordination with the Royal Irrigation Department will be managed to obtain the water from the Pa-Sak Cholsithi Reservoir so that no impact imposes on the water usage for irrigation, consumption and factories at the downstream of the water pumping point.

Operation Phase

• Water consumption during full load operation at design condition will be 46,932 cubic meters per day. The reservoir capacity is enough for 34 day operation at such condition.

• The reservoir will retain the effluent when the water level of Khlong Huaiba (Khlong Nong-Ngu-Loem) is higher than 3.5 meters (5.5 meters msl.)

9. Transportation Construction Phase - To assign the contractor to prepare and submit a

traffic and transportation plan to the project for consideration before starting the construction activities, and to enforce them to strictly follow the traffic rules.


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9. Transportation (Cont’d) - To avoid the transportation of materials or

machineries of large size during the rush hours, i.e.,

during 07.00-09.00 a.m. and 05.00-07.00 p.m..

- Power Generation

Supply Co., Ltd.

- To avoid the transportation passing through the

community areas by using a detour around the

outskirts of the town or a special route between the

towns.

- To avoid the transportation during the time periods

of heavy rainfalls or bad visibility.

- To contact and coordinate with highway police in

advance before making any transportation of

materials or machineries of large size in order to

set up a transportation route, and to request for a

police car to facilitate and lead the way for such

transportation.

- To conduct the public relations in order to inform

the local communities and concerned government

agencies about the timetable, procedural steps and

the time periods of construction as well as the

expectedly increased traffic load due to the project

operation. This must be conducted before the

construction takes place in order to welcome

comments from and exchange the ideas with the

communities and concerned government agencies

which will be beneficial for work planning.

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- To limit the driving speed, i.e., not to exceed 20

kilometers per hour within the construction area

and not to exceed 60 kilometers per hour on public

roads.

9. Transportation (Cont’d) - To load the trucks in accordance with the requirement of the laws and to well cover the transported materials in order to prevent them from falling off onto the traffic surface which may cause accidents.

- To provide passenger buses for the workers to commute from their housing to the project site area in order to reduce the number of vehicles on the roads.

- To provide training on safe driving for drivers. - To post the warning signs or signals which can be

clearly seen during daytime and nighttime, at a distance of approximately 100 meters before approaching the construction area. The installation of these warning signs must be completed before the construction starts.

- To provide a security guard or personnel responsibility for making flag signals at the entrance and exit of the project construction area and the construction areas of the water pipeline along the public roads.

- To have a parking lot and to strictly prohibit parking of vehicles on the shoulders of the highways.


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- To install aiding equipments, e.g., metal sheets to be laid over the trenches, temporary bridges or drainage pipes for facilitating the safe and efficient transportation of machineries across the obstacles.

9. Transportation (Cont’d) - To record the statistics of accidents from the

transportation on the transporting routes, including

the details and causes of accidents for uses in the

planning and determining appropriate preventive

measures.

- To do the maintenance works on the roads that are

damaged by the transportation of

materials/equipments in order to restore to their

original condition or better.

- Power Generation

Supply Co., Ltd.

Operation Phase

- To designate clearly the traffic routes within the

project area including the installation of warning

signs and traffic signals before project operation,

and to enforce the traffic rules to be strictly

followed.

- To limit the driving speed not to exceed 20

kilometers per hour within the project area.

10. Drainage and Flood

Control

Construction Phase

- To construct a drainage ditch for collecting the

storm water, and then start the land preparation in

the dry season. To construct a dike around the land

preparation areas before the rainy season begins.


- To construct 2 holding ponds and 2 storm water

sumps with a total capacity of 119,000 cubic

meters in the construction site area for retaining the

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10. Drainage and Flood

Control (Cont’d)

storm water from the rainfalls over the project area

during the construction phase; and to control the

pumping of the discharged water into Klong

Huaiba (Klong Nong-Ngu-Loem) by observing its

water level at the discharge point. If it is found that

the water level of this canal is lower than 3.5

meters (5.5 meters msl.), the project will discharge

the water; but if the water level gets close to 3.63

meters (5.63 meters msl.), the project must stop

discharging the water.


Operation Phase

- To maintain the condition of the storm water

drainage ditch around the outer boundary of the

project so that the storm water can be will drained.

- To retain the effluent in the holding ponds of the

project. If it is found that the water level of Klong

Huaiba (Klong Nong-Ngu-Loem) is lower than 3.5





- To divert the storm water (from the rainfalls over

the project area during the rainy season) into the

reservoir for uses in the dry season (in combination

with the water from the Pa-Sak River).

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11. Solid Wastes Construction Phase

- To request the contractor to segregate the solid

wastes by their types, to provide appropriate and

adequate number of containers for each type which

are installed at various points within the

construction area, and to dispose these waste

according to the Notification of the Ministry of

Industry, entitled “Disposal of Garbages or

Unwanted Materials”, 2005.

- To contract the local agency for collecting the

garbages everyday to avoid overfilling.

Construction Phase

Parameter

- Types/quantities of solid wastes and the disposal

method for each type of solid wastes.

Location

- Project area

Duration/Frequency

- Once a month during the construction period.

Measurement Method

- Collect the records of solid waste lists and receipts

of solid wastes disposal

- Power Generation

Supply Co., Ltd.

- To manage each type of solid wastes anticipated to

be generated during the construction phase which

includes scrap materials from soil excavation (e.g.,

scraps of soil, sand, brick, etc.), scraps of

construction materials (e.g., fractions of structures,

or used or unwanted materials, etc.), hazardous

wastes (e.g., batteries, motor oil, hydraulic oil,

filters, mineral oil, cleaning agents or used

solvents) as well as enamel products or rejected

paints and general garbages of approximately 5,100

kilograms per day. The project will provide a

specific area for storing each type of garbages or

solid wastes, and appropriate containers for

segregating each type of solid wastes in order to

facilitate the disposal

Operation Phase

Parameter

- Types/quantities of solid wastes and the disposal

method for each type of solid wastes

Location

- Project area.

Duration/Frequency

- Once a month during the operation period.

Measurement Method

- Collect the records of solid waste lists and receipts

of solid waste disposal.

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11. Solid Wastes (Cont’d) according to the Notification of the Ministry of

Industry, entitled “Disposal of Garbages or

Unwanted Materials”, 2005.

- To prohibit burning of garbages or leaves within

the construction area.

- Power Generation

Supply Co., Ltd.

Operation Phase

- To provide a specific area for appropriate

collection and segregation of solid wastes.

- To provide appropriate containers for each type of

solid wastes to install these containers at various

points within the project area, and to dispose the

solid wastes according to the Notification of the

Ministry of Industry, entitled “Disposal of

Garbages or Unwanted Materials”, 2005.

- To contract the local agency for collecting the

garbages everyday to prevent overfilling.

- To manage each type of solid wastes as follows :

• General garbages from Office Buildings : The

garbages generated from the office buildings

including pieces of paper, glass, plastic bags,

packages/boxes are estimated to be about 59.5

kg/day which are collected in the bins and

disposed outside the plant by the contracted local

agency.

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11. Solid Wastes (Cont’d) • Spent Air Filters : The quantity of spent air

filters generated is estimated to be about 4,000

pieces/year which is separately collected by the

project and disposed by an authorized waste

disposal facility.

• Spent Lubricating Oil and oil from oil separators

: Spent lubricating oil and the oil from the oil

separators are estimated to be about 870

litres/month which are collected in 200 litre tanks

and disposed by an authorized waste disposal

facility.

• Spent Resins : The spent resins generated are

estimated to be about 1.3 m3/year which are

returned to their manufacturer or separately

stored and subsequently disposed by an

authorized waste disposal facility.

• Sludge from water treatment system : The

quantity of sludges generated from the water

treatment system is about 22 m3/day in case of

natural gas firing and about 18 m3/day in case of

diesel oil firing. The sludges are stored for

disposal by an authorized waste disposal facility.

• Solid wastes from evaporation process : The

solid wastes generated from the evaporation

process is about 114.4 kg/day, or 153.4 kg/day

- Power Generation

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11. Solid Wastes (Cont’d) when the effluent from office building is mixed with chemical contaminated effluent. The solid wastes are stored for disposal by an authorized waste disposal facility.


Nong-Saeng Power Plant Project will dispose the solid wastes according to the Notification of the Ministry of Industry, B.E.2548, entitled “Disposal of Garbages or Unused Materials.”

12. Occupational Health and Safety

Construction Phase

As the effect of migration is the major and profound

problem, the cooperation of all concerned

organizations and government sectors as well as

labors can bring the prevention and reduction of the

health and safety issues. Generally, the Contractor

will proceed as shown hereunder:-

- For the procedure of job application, the Contractor will perform interview and health check-up, appearance check and request for medical check certificate to confirm that that person has no incurable disease and congenital disease which obstruct to work.

- To notify government offices as follows:-

• Local clinic or hospitals

To let them acknowledge and prepare the

readiness of public health and medical care for

the increasing of population. The said

Operation Phase Noise in Working Area Parameter - Noise Dose Location/Person - Employees working in the process are of the power

plant. Duration/Frequency - 4 time per year Measurement Method - Noise Dosimeter or method recommended by the

concerned government agency Expense - 10,000 baht per time Parameter - Noise Contour Location/Person The electricity generating area having high noise level.


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12. Occupational Health and

Safety (Cont’d)

organizations will consider the suitable

programs for prevention epidemic, sexual

transmitted disease (STD) and other

diseases including medical support. The

Contractor will cooperate and follow their

advice.

• Local administrative government office such as

Municipality and Sub-district Administrative

Organization (SAO).

To let them acknowledge and prepare the

readiness for local society and commune in a

group of people including all region

regulations.

• Other Public Utility Government Office such as

Provincial Electricity Authority, Provincial

Waterworks Authority and Municipality

dealing with garbage scavenging

- Training Program The Contractor will arrange HSE Orientation Program for all labors in order to notify them our basic principles before starting to work including the way of operation and commune in labor camp. Furthermore, the additional information will be regularly provided in Safety Talk Program.

- Drug and Alcohol Check The Contractor will take a random alcohol testing

Duration/Frequency

- every 5 years

Measurement Method

- Integrated Sound Level Measurement or equivalent


government agency.

Expense


Heat

Parameter

- Wet Bulb Globe Temperature (WBGT)

Location

Heat sources, such as

- Condenser Exhaust Unit

- Steam Pipeline Area

- Generator Area

- Combustion Turbine Area

Duration/Frequency

- 4 times per year

Measurement Method

- WBGT Method or equivalent method

recommended by the concerned government

agency

Expense


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Safety (Cont’d)

of labors as periodical check and random urine

testing to look for addictive substance in labor

camp occasionally.

- Medical support program

The Contractor will provide first aid kits and

medical supplies in project site and also coordinate

with local hospital in case of emergency

Occupational Health and Safety Management

- The project in conjunction with the contractor of

the project construction will appoint a committee

and personnel for safety, occupational health and

working environment with responsibility to

establish policy and work guidelines. The safety

manual is to be prepared 1 month before the

commencement of construction works and

distributed to every employee. In addition, training

on construction safety will be arranged for all

levels of personnel and relevant knowledge be

provided to every employee working for this

project. These activities will be performed in order

to educate every employee with basic knowledge

and awareness of work safety.

- The procurement of safety equipments including

safety glasses, safety masks, safety gloves, safety

shoes, safety ropes, respirators for toxic gas, noise

protection devices, showers and eye washers in

Light

Parameter

- Light

Location

- Electrical and Control Building

- Administration Building

- Workshop

Duration/Frequency

- 4 times per year

Measurement Method

- Lux Meter or equivalent method recommended by

the concerned government agency.

Expense


Health

Health Examination for New Employees of Nong-

Saeng Power Plant

Parameter

- General Physical Examination

- Lung X-rays

- Basic blood test

Duration/Frequency

- Before working within the specified period by the

law.

Health Examination for Employees of Nong-Saeng

Power Plant

- Power Generation

Supply Co., Ltd.

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12. Occupational Health and Safety (Cont’d)

case of contact with chemicals is provided with training on uses of these equipments and how to work safely (e.g. the application of slings, pulleys and chains for lifting, storage and inspection methods of lifting equipment/machinery, etc.), climbing up high altitude and precautions against falling off. The employees working in confined area must be trained as required by the law (e.g. on the application of gas detectors when entering the confined area, the use of ventilating fans in these areas, having a lookout person in front of the entrance of the confined area, etc.); and also on the erection of working stands, driving in the project area, application of communication instruments, proper methods for loading and unloading the chemicals, etc.

- The employees working on safety, occupational health and working environment shall be trained by the safety personal for the specified courses and duration, and get the training certificate.

- All employees shall be trained on safety before working.

- The working section of safety, occupational health and working environment will have a joint meeting for planning the construction works, summarizing the problems and suggestions for the work performance before starting the work every

Parameter - Lung X-rays - Vision Test - General Physical Examination - Blood test : Complete Blood Cell, Blood group and

Hepatitis B immunity. Duration/Frequency - Once per year Special Examination Parameter - Hearing test for mechanical workers. - Lung Function Test for maintenance workers. - Vision Test for every employee. Duration/Frequency - Once per year Fire Prevention and Fire Fighting System - The safety, occupational health and working

environment section will have a meeting in order to summarize the problems, recommendations, and to revise the safety manual and emergency plan by recording the details, statistics and comments from the employees and local fire fighting authority on the safety and occupational health of the project.

- Inspection of fire protection equipments, at least once a week.

- Evaluation of the emergency response drill in order to revise the emergency plan and practice skills

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Safety (Cont’d)

morning. Details and statistics are to be recorded,

such as accident statistics with its causes, severity

and damage, including corrective measures.

- Inspection of safety equipments shall be conducted

at least once a month.

- Arrangement for the meeting of the committee on

safety, occupational health and working

environment at least once a month in order to

evaluate and recommend for problem correction.

- Promotion of activities on safety, occupational

health and working environment.

- Posting warning signs of “No Entry for

Unconcerned People” in dangerous area, and

specifying construction zone.

- Provision of adequate sanitary utilities for

employees, such as drinking water and toilets.

- Provision of medical supplies and first-aid

equipments in case employees are injured and sent

to the hospital.

- Provision of knowledgeable personnel to be responsible for safety.

- Storage of instruments and equipments orderly, and inspection of them to be in good conditions on a regular basis.

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Safety (Cont’d)

- To specify these measures in the employment

contract for the construction contractor during

construction phase.

Fire Prevention and Fire Fighting System

- The prime contractor must provide fire

extinguishers in sufficient quantity for the

employees working in the hazardous areas or in the

area of intense heat and fire risk, such as metal

welding. Each welding crew must have a fire

extinguisher (dry powder) in their workplace. For

metal welding in an elevated area, the space

beneath the working area must be covered with

insulating materials in order to keep the sparks,

resulting from the welding, from falling onto the

lower area which may otherwise be unsafe for

those working in such area.

- The prime contractor must prepare a coordinating

plan with the local fire authority in order to get

ready in case of an emergency.

Control of the entrance and exit of the construction-

induced hazardous areas, traffic control. Posting

hazard warning signs that are apparently visible by

the foreman or safety personnel.

- Power Generation

Supply Co., Ltd.

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- Preparation of fire fighting equipment suitable for

area conditions and types of work along with

specifying the safe work procedure.

- Inspection of working condition and equipments

used in the construction, particularly at the

locations being subject to hazard or fire risk.

- Inspection, on a routine basis, of fire extinguishers

at least every week.


Operation Phase

Working Environmental Condition

Sound Pressure Level

Although the sound pressure level in the workplace

within Nong-Saeng Power Plant was specified to be

85 dB(A) which did not exceed the standard

specified in the Notification of Ministry of Interior,

Safety Protection Measures for Factories Regarding

Working Environmental Conditions B.E.2546

(2003), some factors are to be taken into

consideration in order to reduce long-term impacts.

For example, wear-out of machines in the process

can cause higher sound pressure level if maintenance

is not suitably performed. Therefore, Nong-Saeng

Power Plant provided the mitigative measures for

noise as follows:

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Safety (Cont’d)

- To prepare a preventive maintenance plan for the

machineries in production process continually.

- To prepare noise protection equipments, such as

ear plugs or ear muffs for employees.

- To post warning signs in loud noise areas in order

to remind workers to wear ear plugs or ear muffs.

To train workers on work procedures and proper

use of personnel protective equipments.

- To install silencer and enclosing the machines

generating loud noise.

Heat

The heat generated was assessed from the nature of

power plant, work, and heat exposure time of

workers. It was found that it did not impose direct

impacts on workers. However, Nong-Saeng Power

Plant provided mitigative measures to reduce the

potential impacts during plant operation, such as

insulation system and enclosure of the heat sources

according to the characteristic of process unit.

Chemicals

- To provide the chemical storage room, and material

safety data sheet (MSDS) of every chemicals, and

to post warning signs clearly in this area.

- Power Generation

Supply Co., Ltd.

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- To provide personal protective equipments (PPE),

such as chemical suit, chemical gloves, glasses,

chemical mask, etc. for the employees exposing to

the chemicals.

- To train the employees on working procedures and

wearing PPE properly.

- To train the employees on safe use of chemicals,

and procedures for preventing and checking

chemical leakage.

- To provide emergency washing equipments, such

as eye washer and shower in chemical storage tank

area and working area where employees can

expose to chemicals.


- Appointment of a committee on safety,

occupational health and working environment with

responsibility for controlling the work performance

under various conditions of the power plant, such

as during normal operation, daily maintenance, and

annual plant shutdown, etc.

- Preparation of the manuals for the aforementioned

plans to be used as reference plans in the training

of the employees of the power plant. These

manuals must conform to the details of the

equipments/machineries installed in the power

plant and to the requirements under the law of


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safety and working environment. For

instances,provision of training course(s) on safety

at work for every new employee of the power plant

along with the distribution of safety manuals.

- Preparation of an annual health checkup plan for

every employee.

- Record of statistics of safe work performance, no

sick leaves because of injuries etc.

- Preparation of safety hats in sufficient number for

every employee of the power plant and the plant’s

visitors.

- Preparation of safety glasses for every plant

employee.

- Preparation of ear muffs for every plant employee.

- Preparation of safety gloves for various types of

work, such as welders, electricians, etc.

- Preparation of safety shoes in sufficient number for

every employee of the power plant.

- Preparation of safety ropes for working at high

altitude.

- Preparation of gas masks.

- Preparation of equipments and medicines, and

place for the first-aid treatment.

- Preparation of stretchers for carrying injured

employees by accidents at work.


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Safety (Cont’d)

- The surface of the material and

equipments/machineries having high temperature

are insulated to lower the surface temperature not

to exceed 60 °C.

- Stairways, walkways and mezzanines are wide

enough and equipped with railings for preventing

the plant’s employees from falling off. These

items are in accordance with the safety standards.

- The floor surfaces of areas subjected to oil spill and

contamination are made of anti-slip materials. The

painting system and alphabetic signs, and the flow

direction of the materials in the piping systems and

other supporting equipments are in accordance with

the international standards.

- Equipments generating loud noise are equipped

with noise absorption wall and designed with good

ventilation for air circulation.

- Installation of showers and eye washers at the

locations subjected to the risk of chemical spill or

accident. This is for the plant’s employees

involved in the accident to instantly wash off the

contaminated chemicals.

- Electrical and lighting systems: the backup power

system was installed for emergency cases. It was

designed for safety and adequate lighting at

workplace.

- Power Generation

Supply Co., Ltd.

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Safety (Cont’d)

- Control of entrance and exit of the power plant,

hazardous areas and traffic by security guards and

safety personnel.

- Provision of permit system for work entry,

preparation of area condition and working

procedures on the safety basis for the outsiders or

the in-plant employees performing maintenance

works.

- Inspection and preparation for the safety of risky

working area, such as working in confined areas,

welding/cutting area where sparks exist leading to

fire.

- Inspection of working condition and equipments in

the power plant, and locations where are hazardous

or subject to fire risk.

- Performance inspection of the following preventive

equipments/devices on a regular basis, at least

every week:

• Personal protective devices

• Showers and eye washers

• Emergency lights

• Alarm system and fire extinguishers

- Arrangement for the safety week activity to

encourage and allow skill practice on the safety

performance at least once a year.

- Power Generation

Supply Co., Ltd.

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Safety (Cont’d)

- Perform emergency response drill, at least once a

year.

- The safety, occupational health and environment

section will have a meeting to summarize the

problems, make recommendations and revise the

safety manual and emergency plan. The details of

the meeting will be recorded, including the

statistics, comments from the employees and

complaints from the nearby communities regarding

safety and occupational health of the project.

- Check of safety equipments at least once a week.

- Provision of annual health examination for pre-

employment and all employees.

- Evaluation of emergency drill in order to improve

the emergency plan and drill skill.

- Arrangement for the meeting of the committee on

safety, occupational health and working

environment at least once a month in order to

evaluate, recommend for problem solving, improve

and promote the activities on the safety,

occupational health and working environment.

Fire Prevention and Fire Fighting System

During operation phase, the measures and

installation of fire prevention and fire fighting

equipments of Nong-Saeng Power Plant are specified

in accordance with the international standard of the

- Power Generation

Supply Co., Ltd.

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Safety (Cont’d)

National Fire Protection Association (NFPA 10, 12,

13, 14, 15, 20, 24, 30, 70, 72D, 9E, ANSI B31.1,

ASME VIII and IEEE.83) as follows:

- Fire Prevention System of Nong-Saeng Power

Plant includes the following:

• Smoke Detector

• Fire Detector

• Gas Detector

• Alarm System, Sound Signal, Light Signal.

• Automatic Protection System transfers signal to

activate the automatic fire extinguisher.

• Center Control of Alarm and Fire Prevention

System.

- Fire prevention systems are installed in various

locations in the office building where fire may

occur.

- Fire Fighting System includes the following:

• Sprinkler system was installed in material

storage building. It spray water automatically for

fire fighting. Thermal bulb breaks when fire is

detected and alarm will be transferred to the

control room of the power plant for commanding

fire fighting immediately.

- Power Generation

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Safety (Cont’d)

• Yard hydrant joins to fire water pipeline which is

laid around the power plant area. The spray

radius of fire water covers over every building

and in the area where the main machines are

installed within the power plant.

• Fire house cabinet is installed at the road side in

the power plant area.

• Fire water pump system

: Main fire water pump system is electric motor

driven pumping water from raw water storage

tank in the power plant for fire fighting.

: Reserved fire water pump system is diesel

engine driven. It is used in case of electricity

shortage within the power plant. Efficiency

operates to pump water to be equal main fire

fighting water pump machine.

: Jockey pump is automatically operated when

fire water pressure level in fire water pipeline

system of the power plant is reduced to the set

value. The fire water in the system has high

pressure enough to use for fire fighting.

• Portable fire extinguisher of dry powder type is

installed for fire fighting within each building of

the power plant.

- Power Generation

Supply Co., Ltd.

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Environmental Impacts Mitigative Measures Monitoring Programme Responsibility 12. Occupational Health and Safety (Cont’d)

• CO2 fire extinguisher is installed on a cart for fire fighting

• Fire water spray pipeline system is installed to cover main equipments of the power plant, such as 115 kV main transformer steam turbine and Spent lubricating oil injection system area which may generate high thermal and fire. It is automatically operated when fire detector is active.

Fire preventions system of the project are designed in accordance with NFPA as follows :

• Transformers for combustion & steam turbine generators automatic water spray system is installed in the transformer area.

• Steam turbine generator bearing area protection system using fine water spray system is installed in this area.

• HRSG area. Hydrants are installed in HRSG area.

• Combustion turbine enclosure and turbine enclosed mechanical and electrical cabinet area are prevented from fire by carbon dioxide.


Operation Plan Fire protection is a function of every employee in the power plant including the executive, employees, personnel and security guards. Accordingly, their functions are designated as follows:

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- The Executive and Manager • To establish the power plant layout. • To specify the areas, and control the process and

equipments/machineries that may catch fire. • To specify the standard operating procedures for

fire safety. • To control the use of fire, generation of

fire/flame, sparks, electricity, heat, static electricity or other working procedures causing an outbreak of fire.

• To monitor the activities relating to fire protection.

• To have a long-term fire protection plan, such as installation of detectors for: inflammable substances or smoke, alarm systems, automatic fire fighting systems at locations where flammable or ignitable substances exist.

- Every employee must comply with the work safety rules as follows: • Lighting a fire is prohibited in the restricted or

power plant areas before permission by an authorized personnel.

• Smoking is prohibited in the areas where the following signs are posted: “Hazards of inflammable substances or explosives” or “No smoking”, except in the provided areas.


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• Maintenance of equipment/machinery without permission is prohibited in the areas where inflammable substances or ignitable materials exist unless the maintenance crew and safety personnel jointly apply for a permit to perform such maintenance works according to the specified procedures.

- Safety Personnel • To specify the zones that are subject to a fire

risk. • To routinely inspect the locations that are risky

to cause an outbreak of fire. • To specify the details of the fire prevention and

fire fighting plan as well as to provide training and practice periodically.

• To provide, maintain and inspect the fire extinguishers to be ready for use all the time.

• To fill data in Emergency Check List and Emergency Incident Form.

• To report accidents and injuries. - Security Guards • To be on patrol in order to keep the outsiders or

the deliverers of goods from entering the power plant or the fire risk areas.

• To take precaution against sabotage in the fire risk areas.


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• To report to the concerned person immediately when anything that can cause an outbreak of fire is sighted.

Emergency Plan The Nong-Saeng Power Plant Project has prepared an emergency plan for various cases in order to get ready to handle any emergency situation that may emerge. The main target of such effort is the reduction of hazards that may impose on its employees and equipments/machineries. This emergency plan consist of the following: - Emergency Control During normal operation period, the power plant manager will act as the person being responsible for all emergency control, i.e., to keep the safety for all employees of the plant. During the operation period beyond the normal working hours, the shift chart engineer will be responsible for all emergency control until the situation is back to normal or until the power plant manager arrives at the plant and resumes his responsibility as the emergency coordinator. The emergency is classified into 2 levels as follows: Level 1 Emergency Level 1 emergency is the event that takes place within the power plant and the emergency coordinator can keep the resultant damage condition


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within the limited extent. This level involves the use

of the plant’s employees and emergency equipments

that are prepared in the power plant and,

consequently, the situation can be calm down.

Level 2 Emergency

Level 2 emergency is the event that may outbreak

from its cause both within and outside the power

plant; and the emergency coordinator, based on his

evaluation of the situation, determines that the

emergency plan as prepared for level 1 emergency

case cannot be applied to keep the situation calm

down. Consequently, it is necessary to involve the

use of personnel and emergency equipments from

outside organization(s) and government agency(s) as

cooperative backup for the control of the emergency

incident in order to keep its situation under control.

- Fire Fighting Plan

The incident of fire is regarded as an emergency

event that causes the most damage to the property

and personnel, so it is a must to make a clear/detailed

fire fighting plan. Practice under the plan on a regular

basis is also required so that, in case of fire, the

situation can be calm down soon. Details of the plan

are as follows:


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Operation Procedure during Normal Working

Period

The employee who comes across a fire incident will

decide whether or not he can suppress the fire by

himself. If not, he will inform the event to the central

control building to request for help and advise the

information to the emergency director. The power

plant manager will act as the emergency director

whose functions are to evaluate the situation of the

emergency incident and to decide that such incident

is level 1 or level 2 emergency, and whether or not

the situation can be kept under control within the

power plant by its own capacity; make commands in

order to calm down the situation under the

emergency; provide safety for every employee and

the property of the power plant, e.g., contact the local

fire authority, request for ambulance(s) from the local

hospital in case the plant’s employees are injured by

the fire, etc.; command the fire fighting team of the

power plant to take action; command to evacuate the

employees from the area of incident to the assembly

point; and command to block off the traffic at certain

roadway(s) within the power plant and block off the

entrance of the power plant, etc.


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Operation Procedure during the Period beyond

Normal Working Hours

The employee(s) who comes across a fire incident

will decide that whether or not he can suppress the

fire by himself. If not, he will inform the event to the

central control building to request for help and advise

the information to the emergency director. Due to

the number of employees working in the power plant

during this period is less than the those working

during normal working hours, the head of the shift in

charge will act as the emergency director. If his

evaluation of the emergency situation results in level

2 emergency, he must notify the local fire authority

soonest, contact and call for the plant’s employees

who are on duty for the emergency to take action,

command the fire fighting and security teams to take

action under the fire fighting plan; then he will notify

the local hospital and request for an ambulance in

case it is known that someone is injured in the fire

incident, cut out the electrical circuit in the area

where fire water spraying takes place and also advise

the situation to the power plant manager, etc.

- Evacuation Plan

The project will provide for 2 options of assembly

point and the route of evacuation which will rely on


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the emergency director’s decision to choose the

choice. The consideration for a decision making will

be based on the safety and convenience at each

location of the incident.

When the emergency director proclaims an

emergency situation and advises the assembly point,

every employee will be gathered to such assembly

point for checking the total number of employees,

teaming up and preparing the equipments. If

someone is missing from the list, a search team will

look for and provide assistance for that missing

person(s).

- Rescue Plan

The rescue plan will include the following items:

• Coordinating with the government agency(s).

• Checking for the damage.

• Calling for personnel of every department to

present themselves and specifying the meeting

point for the personnel to wait for commands.

• Saving the life and digging for the dead

person(s).

• Moving the victim(s) and property of the dead

person(s).

• Evaluating the damage and result of the

operation, and reporting the fire incident.


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• Providing assistance and support for the

victim(s).

• Improving the conditions and solving the urgent

problems in order to resume the business

soonest.

- Restoration and Reformation Plan

The restoration and reformation plan to be

implemented after the fire incident at the power plant

involves the improvement and solving of problems

based on the evaluation reports on the actual situation

from every sector; particularly, the fire prevention

plan, operation plan to handle a fire incident, rescue

plan (soon after the fire is calmed down) as well as

the improvement of those defective personnel.


13. Socio-economics Construction Phase

The action must be done according to the suitability

and capacity of the local workers, and concentrate on

two major areas as follows:

- Contractor employment policy is based on fair

wage and compliant with local rules and regulations.

PGS will hire and will provide accommodation such

as worker camp equipped with basic utilities, health

facilities, and transportation between project site and

worker camp. Specifically, the following will be

complied with:

Construction Phase

Socio-economic

Parameter

- Socio-economic survey and opinion of people,

community leaders and representatives of

concerned agencies.

Location

- Communities in the vicinity area of the Nong-

Saeng Power Plant.

- Representative of concerned agencies.


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13. Socio-economics (Cont’d)

a. carry out activities consistent with the intent of ensuring legally permissible equal opportunity, fair treatment and non discrimination in relation to recruitment and hiring, compensation, working condition and terms of employment for its workers (including prohibiting any forms of discriminatory against women during hiring and providing equal work for equal pay for men and women engaged by the company); b. not restrict workers form developing a legally permissible means of expressing their grievances and protecting their rights regarding working condition and terms of employment; c. engage contractors and other providers of goods and services: i. who do not employ child labor or forced labor; ii. who have appropriate management systems that will allow them to operate in a manner which is consistent with the intent of (a) ensuring legally permissible equal opportunity and fair treatment and non discrimination for their workers, and (b) not restricting their workers from developing legally permissible means of expressing their grievances and protecting their rights regarding working conditions and terms of employment; and iii. whose subcontracts contain provision which are consistent with paragraph (i) and (ii).

Reporting on Social Protection (labor) - Compliance with the applicable social protection (labor) standards; To be reported semi-annually under the environment and social monitoring.


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13. Socio-economics

(Cont’d)

Protection to work-related injuries by preparing

health and safety prevention plan to be assigned to

contractor and its safety manager in order to mitigate

any risk to workers and providing personnel

protection equipment for workers as appropriate.

- Urgent action on correct information dissemination

without hidden and distorted agenda to all groups

of stake holder must be performed.

Action on listening to opinion conducted by the people

participation process emphasizing on two way

Duration/Frequency

- Every 6 months-talking and interviewing with

community leaders.

- 1 time-survey by questionnaires.

Methodology

- Visiting, talking and interviewing with community

leaders and representatives of concerned agencies.

- Survey by questionnaires.

Expense


- Power Generation

Supply Co., Ltd.

communication for making acceptance of the project

in the area by the communities in the project area

and in the surrounding areas. Making understanding

leads to good wills in the form of good cooperation

and participation of people in the future. The action

must be opened for the communities to express their

opinion and suggestion for making guideline to

prevent the problems of the project owner, local

people and government sectors. The action must be

conducted in the form of a committee community

participation. This will lead to good development

and avoid bad people to disturb the peace.

- Action on the project public relation before the

beginning of construction by distributing

Operation Phase

Socio-economics

Parameter

- Socio-economic survey and opinion of people,

community leaders and representatives of

concerned agencies.

Location

- Communities in the vicinity area of the Nong-

Saeng Power Plant.

- Representative of concerned agencies.

Duration/Frequency

- Every 6 months-talking and interviewing with

community leaders.

- 1 time survey by questionnaires.

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documents and visiting leaders and people. The action may use several media to make targeted groups receive correct and fast information. This will prevent the consequent problems. During the construction period, placards of the project on progress must be posted on public places or in front of the project.

- Consideration on the priority of local worker recruitment, which will make career and income to the communities, leads to making good relationship with the communities. The action must be done according to suitability and capacity of the local workers, and concentrate on two major areas as follows:

- Contractor employment policy is based on fair wage and compliant with local rules and regulations. PGS will hire and will provide accommodation such as worker camp equipped with basic utilities, health facilities, and transportation between project site and worker camp. Specifically, the following will be complied with:

a. carry out activities consistent with the intent of ensuring legally permissible equal opportunity, fair treatment and non discrimination in relation to recruitment and hiring, compensation, working condition and terms of employment for its workers

Inspecting method - Visiting, talking and interviewing with community

leaders and representatives of concerned agencies. - Survey by questionnaires. Expense - 500,000 baht per time Reporting on Social Protection (labor)

- Compliance with the applicable social protection (labor) standards; To be reported semi-annually under the environment and social monitoring.


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(including prohibiting any forms of discriminatory against women during hiring and providing equal work for equal pay for men and women engaged by the company); b. not restrict workers form developing a legally permissible means of expressing their grievances and protecting their rights regarding working condition and terms of employment; c. engage contractors and other providers of goods and services: i. who do not employ child labor or forced labor; ii. who have appropriate management systems that will allow them to operate in a manner which is consistent with the intent of (a) ensuring legally permissible equal opportunity and fair treatment and non discrimination for their workers, and (b) not restricting their workers from developing legally permissible means of expressing their grievances and protecting their rights regarding working conditions and terms of employment; and iii. whose subcontracts contain provision which are consistent with paragraph (i) and (ii). - Protection to work-related injuries by preparing health and safety prevention plan to be assigned to contractor and its safety manager in order to mitigate any risk to workers and providing personnel protection equipment for workers as appropriate.

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13. Socio-economics

(Cont’d)

- Action on control, fostering and reiterating of the

subcontractors to seriously prevent the immigrants

and local workers from making quarrel with people

in the original communities or among themselves.

- Action to control construction activity to avoid

disturbing people in the area and to rigorously and

strictly apply the environmental measures for

safety and accident prevention from construction.

- Setting up of public relation and coordination unit

for explaining, making understanding during the

constructing period and receiving complaints from

people who are in trouble due to the construction.

- Power Generation

Supply Co., Ltd.

Operation Phase

Assigning 2 parties with the responsibility for the

communies. The SAO is responsible for taking care

of environment in the communities and the Nong-

Saeng Power Plant operator is the coordinator to

support and participate in the activities.

- Organizing activities to promote and support

various community development, particularly

reduction of anxiety about impacts on occupation,

upgrading people livelihood, developing

communities, encouraging learning and

maintaining art, culture and religion. The activities

include career supporting at sustainable

economylearning center, agricultural demonstration

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13. Socio-economics

(Cont’d)

plot (rice growing plot, mushroom culture plot,

etc.), animal husbandry (chicken and hen farming),

family accountancy, integrated community and

society development, monitoring and

evaluating/surveying of occupational damage

caused by activities of the Nong-Saeng Power

Plant project, making understanding about

production process or organizing an open day

every year and regular informing news/information

of the project.

- Organizing suitable community supporting

activities and participating in community activities

as if the power plant staff were family members.

The activities are merit making, donation of things,

stationery and scholarship to students in the locals,

Participation in development of community, temple

and community public property.

- Setting up a coordination center for receiving

complaints in the case that people are troubled by

the operation of the Nong-Saeng Power Plant

Project. Assigning of procedure, duration and

contact persons should be clear in order to response

to complaints rapidly.

- The purpose of Power Development Fund is to

develop local communities around power plants.

Power plants having capacity over 6 MW are

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13. Socio-economics

(Cont’d)

required to establish the Power Development Fund

whose size of the fund is regulated by Energy

Regulatory Commission. The Power Development

Fund will be used as a channel for implementing

the subsidy arrangements for underprivileged

power consumers; rehabilitating localities;

compensating people affected by power plant

operations, and the promotion of renewable and

environmentally friendly energy. Energy

Regulatory Commission is responsible for the

management of public development fund.

14. Public Relation and

Public Participation

Public relation plan for making understanding

Period of pre-construction/site preparation

A power plant is a large scale industry. Construction

takes a long time and may cause impacts or anxiety

on communities since site preparation period. The

Power Generation Supply Co., Ltd. has prepared

public relation plan for making understanding of

communities from the beginning of site preparation

for plant construction. In order to make the

community be relaxed from anxiety and be confident

with the operation, the public relation should be done

as follows;

- Making the project public relation placards,

communication channels and showing

- Power Generation

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(Cont’d)

responsibility for the case of problems/ impacts

resulting from the project activity. This will make

people living in the area close to the power plant

area be relaxed from anxiety about pollution

problems, accidents and health.

- Setting up a community coordination center or call

center (temporary) of the Power Generation Supply

Co., Ltd., for receiving complaints from

communities in order to make them be confident

that the company is responsible for any impacts

caused by the project subcontractors.

- Setting up a committee on public participation for

inspection of the implementation of environmental

measures during construction phase. This will

encourage the communities to participate in

watching and inspecting the implementation of

mitigative measures including environmental

development in the communities. The project

should support the setting up of a committee on

public participation by cooperation with the

communities. The function of the committee are

• To share idea and suggestion for the

implementation of the environmental action plan

of the Nong-Saeng Power Plant Project.

• To participate in inspection of the

implementation of the environmental action plan.

- Power Generation

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(Cont’d)

• To appoint a working team for inspection of

environmental quality of concern.

• To receive complaints on environmental

problems from communities and to analyze the

problem according to the process for complaint

receiving and solving given in the action plan on

socio-economics.

- Power Generation

Supply Co., Ltd.

Construction Phase

- To conduct proactive public relation consisting of

news/information dissemination process that

increase more learning of project in more

perspectives. The public relation should be carried

out via all local media. The deep public relation

should be performed to make understanding to

individuals directly by having meeting or seminars

on the following issues;

• Progress of the project operation.

• Technical information of the power plant

operation, particularly how safe the security

measure or method is or a method that the Power

Generation Supply Co., Ltd. has prepared to cope

with problems, obstacles and accidents during

construction period of the project.

• Promotion of green area, for example, planting

trees in the public places of communities to

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(Cont’d)

compensate the power plant area. This makes

good attitude to the Power Generation Supply

Co., Ltd. for the consideration and response to

true need of the communities.

- To produce public relation media, such as leaflets,

hand bill and video, etc., containing the details of

the power plant and pollution prevention system

which are easy to understand. This will create the

image of the Power Generation Supply Co., Ltd.

- To coordinate and organize a meeting with

important offices or organizations in the local, such

as governmental offices or occupational groups in

order to inform the results of the mitigative actions

conducted by the Power Generation Supply Co.,

Ltd.

- Power Generation

Supply Co., Ltd.

Operation Phase

- Organization of a study tour for the communities

by coordination with community leaders to arrange

people to visit the Nong-Saeng Power Plant in

order to make feel as if they were the owner of the

power plant, to make them be confident with

production process using clean technology,

utilization of environmental friendly fuels and

waste disposal process of the power plant.

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14. Public Relation and Public Participation (Cont’d)

- Mass/community communication plan for setting up the projects for supporting community’s common interests that upgrade life quality of people living around the project site. This is the action plan for the activities additional to those supported by the budget of the fund for development of communities around the power plant. The activities are • The project for educational support in the form

of scholarship granting to children in communities and donation of learning and sport kits to schools locating within the radius of 5 kilometers away from the project site.

• The project for supporting public health and occupational health of communities, for example, organization of mobile medical unit.

• The project for recruitment of outstanding students to be the power plant staff.

• The project for maintaining religions in the area around the power plant.

• The project for career promotion and income development for communities, such as, promotion of agricultural occupation or processing of value-added foods from local agricultural products, supporting of housewife groups to produce several foods from local agricultural products and sell them to other locals or upgrade them to be the OTOP goods.


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14. Public Relation and Public Participation (Cont’d)

• The project for conservation of art and culture, custom and local wisdom.

- The supporting projects for development of community potential in the field of environment. The projects are for making community understand and be aware of importance of participation in taking care of environmental problems in the communities. The projects are also for supporting of the management of community development fund. They include the following : • The project on promotion of development of

local conservation tourist sites. • The training projects for disaster mitigation, first-

aid, information sharing (method and channel) between the power plant representatives, governmental officials and the communities.

• The supporting of school activities, such as environmental monitoring volunteer, young environmental scientists, e.g., wind detectives, stream detectives, etc.

• The reforestation project to increase green area in the communities and in the adjacent areas in Nong-Saeng, Nongkhae Districts of Saraburi Province, and in Pachee District of Phra Nakhon Si Ayutthaya Province will reduce concern about changing environment.


Environmental Report for submittal to ADB Nong-Saeng Power Plant Project Chapter 10 Power Generation Supply Co., Ltd. Conclusion and Recommendation

T-EIA208102 10-1 F208102Chap10E

Chapter 10

Conclusion and Recommendation The Nong-Saeng Power Plant Project of Power Generation Supply Co., Ltd. is

located in an area of approximately 570 rai which is allocated into 2 portions of areas: the

power plant area of approximately 300 rai which is located in Moo 4 of Ban Huaiba,

Nong-Kob Sub-district, Nong-Saeng District of Saraburi Province; and the reservoir area

of approximately 270 rai which is located in Moo 7 of Ban Thamsinthusopa, Nong-Namsai

Sub-district, and Moo 2 of Ban Klong, Khok Muang Sub-district, Pachee District of Phra

Nakhon Si Ayutthaya Province. The Nong-Saeng Power Plant utilizes natural gas as the

main fuel and diesel oil as backup fuel. The electrical generating capacity is approximately

1,653 MW, comprising two 826.6 MW blocks. About 1,600 MW of the generated

electricity will be sold to the Electricity Generating Authority of Thailand (EGAT) and the

remaining 53 MW will be used within the Nong-Saeng Power Plant. The main components

of the project includes four combustion turbine generators (CTG), four heat recovery steam

generators (HRSG) and two steam turbine generators (STG). The generated electricity is

sold to EGAT via the 500 kV Pachee sub-station and the transmission line which is

connected to EGAT’s Tatakoe-Wangnoi transmission line. The consumption of natural gas

as the main fuel of the project to be supplied by PTT (Public) Co., Ltd. is approximately

265.18 million cubic feet per day; and diesel oil of approximately 6.594 million liters per

day as backup fuel. The raw water is pumped from the Pa-Sak River, upstream of the Phra

Rama Six Dam, and stored in the 1,600,000 cubic meter reservoir before use. The

wastewater generated by the project is treated and reused. Only the effluent discharged

from the cooling tower is drained into the holding pond before discharging into Klong

Huaiba (Klong Ngu-Loem). The quality of the discharged water meets the effluent

standard under the Notification of the Ministry of Industry, Issue No.2 (1996), entitled

“Characteristics of effluents discharged from factories” and the Decree of the Royal

Irrigation Department No.883/B.E.2532, entitled “The prevention and mitigation of the

discharge of low quality water into the irrigation waterways and the waterways connected

to the irrigation waterways in the irrigation project areas.”


T-EIA208102 10-2 F208102Chap10E

10.1 Air Quality

The main air quality impacts that are potentially resulted from the Nong-Saeng

Power Plant Project during 2 phases are the impacts from dust dispersion during the

construction phase, and the impact from the stack emissions during the operation phase.

During the construction phase of the project which is anticipated to take 40

months, most of the construction activities are land preparation and construction of

foundation, transportation of construction materials, and motor vehicles entering and

exiting the power plant area. The dust generated is of large size and those who will be

imposed by the impact from the construction activities include the workers in the

construction area and the communities nearby the project site. Thus for the purpose of

mitigating such impacts, the Nong-Saeng Power Plant Project has established suitable

environmental measures in the air quality action plan during construction phase.

During the operation phase, the air quality impact resulted from the operation

of Nong-Saeng Power Plant using natural gas as the main fuel and diesel oil as the backup

fuel for electricity generation. The combustion of these fuels generates the air pollutants

including sulfur dioxide (SO2), oxides of nitrogen (NOx), and particulate matters (PM)

which will be emitted into the atmosphere. The SO2, NOx and PM emission rates of Nong-

Saeng Power Plant Project, when using natural gas as fuel, are 7.74, 38.93 and 5.92 grams

per second per stack respectively at the 100% load; 6.34, 31.87 and 4.84 grams per second

per stack respectively at the partial load (80% load); 4.92, 24.74 and 3.76 grams per

second per stack respectively at the 58% load; and 1.50, 10.77 and 1.05 grams per second

per stack respectively during startup and shutdown. When using diesel oil as fuel, SO2,

NOx and PM emission rates are 22.41, 64.37 and 9.99 grams per second per stack

respectively at the 100% load; 18.78, 53.94 and 8.37 grams per second per stack

respectively at the partial load (80% load); 16.36, 47.01 and 7.29 grams per second per

stack respectively at the 58% load; and 4.69, 13.48 and 3.83 grams per second per stack

respectively during startup and shutdown. Then, these results were used in the impact

assessment by modeling. The meteorological data of the year 2007 were used as the input

data to the model, the estimated maximum hourly average concentrations of sulfur dioxide

in the ambient resulting from the emission sources of the project, in case of using natural

gas as fuel, were 12, 11, 10 and 10 micrograms per cubic meter for the 100% load, partial

load (80% load), 58% load and startup/shutdown conditions respectively. The maximum


T-EIA208102 10-3 F208102Chap10E

24-hour average concentrations were 4, 4, 3 and 3 micrograms per cubic meter for the

100% load, partial load (80% load), 58% load and startup/shutdown conditions

respectively. The maximum annual average concentrations were estimated to be 0.7, 0.7,

0.7 and 0.6 micrograms per cubic meter for the 100% load, partial load (80% load), 58%

load and startup/shutdown conditions respectively. All predicted concentrations complied

with the standards for the hourly, 24-hour and annual average concentrations of sulfur

dioxide of 780, 300 and 100 micrograms per cubic meter respectively (under the

Notification of the National Environment Board, No.21 (2001) and No.24 (2004)).

In case of using diesel oil as fuel, the maximum hourly average concentrations

of sulfur dioxide resulting from the emission sources of the project were estimated to be

24, 24, 23 and 27 micrograms per cubic meter for the 100% load, partial load (80% load),

58% load and startup/shutdown conditions respectively. The maximum 24-hour average

concentrations were 6, 7, 7 and 8 micrograms per cubic meter for the 100% load, partial

load (80% load), 58% load and startup/shutdown conditions respectively. The maximum

annual average concentrations were 1 micrograms per cubic meter for all operating loads.

All predicted concentrations were within the applicable standards for the hourly, 24-hour

and annual average concentrations of sulfur dioxide under the Notification of the National

Environment Board, No.21 (2001) and No.24 (2004).

The estimated maximum hourly average concentrations of nitrogen dioxide in

the ambient resulting from the emission sources of the project, in case of using natural gas

as fuel and applying the NO2/NOx ratio of 0.75, were 45, 43, 39 and 75 micrograms per

cubic meter for the 100% load, partial load (80% load), 58% load and startup/shutdown

conditions respectively. When using diesel oil is used as fuel, the estimated concentrations

were found to be 52, 51, 50 and 77 micrograms per cubic meter respectively, complying

with the standard of 320 micrograms per cubic meter under the Notification of the National

Environment Board, No.10 (1995).

In case of using natural gas as fuel, the estimated maximum 24-hour average

concentrations of in the ambient resulting particulates from the emission sources of the

project were 3 micrograms per cubic meter for all operating loads. The maximum annual

average concentrations were 0.5, 0.5, 0.6 and 0.5 micrograms per cubic meter for the 100%

load, 80% load, 58% load, and startup/shutdown conditions respectively. When diesel oil

is used as fuel, the maximum 24-hour average concentrations were found to be 3, 3, 3 and


T-EIA208102 10-4 F208102Chap10E

7 micrograms per cubic meter respectively, and the maximum annual average

concentrations were 0.5, 0.5, 0.5 and 1.2 micrograms per cubic meter respectively. It can

be seen that the estimated concentrations were within the applicable standards of 330 and

100 micrograms per cubic meter for 24-hour and annual average concentrations

respectively, under the Notification of the National Environment Board, No.24 (2004).

10.2 Noise Level

During the construction phase of Nong-Saeng Power Plant, the noise sources,

of the project are those where the maximum sound pressure level at 15 meters from the

machine is assigned to be 101 dB(A) and 85 dB(A) during the daytime and nighttime

respectively. The noise levels at the noise sources are reduced by installing the iron screen

or zinc screen of at least 1.3 mm. thick around construction area, resulting in the decrease

of noise level from noise sources by about 25 dB(A). (Reference : FHWA (Federal

Highway Administration) U.S.A., 2006). Therefore, the maximum sound pressure level

during the construction phase after installing the iron screen or zinc screen were 76 dB(A)

and 60 dB(A) during the daytime and nighttime respectively. The noise impact was then

determined from Decay Formula Equation. It was found that during the daytime, the noise

levels in the plant vicinity area of 500 m, 1 km, 2 km and 3 km radius were approximately

45.5, 39.5, 33.5 and 30.0 dB(A) respectively. During the nighttime, the noise levels in the

area of 500 m, 1 km, 2 km and 3 km far from the project were approximately 29.5, 23.5,

17.6 and 14.1 dB(A) respectively. The impacts of the sound pressure level are decreased as

the distance from the construction area.

The communities nearby the project area which are Wat Thamsinthusopa, Wat

Nong-Tangbun, Wat Khok Muang and Wat Nongkratart would expose to the noise levels

of 29.0-44.5 dB(A) during daytime and 13.3-28.6 dB(A) during nighttime. The estimated

sound pressure levels were below the standard of 70 dB(A) regulated by the Notification of

the National Environment Board No.15 (B.E.2540). The noise levels generated from the

project were used to estimate the annoyed noise level which was found to be below the

standard of 10 dB(A) regulated by the Notification of National Environment Board No.29

(B.E.2550).

During the operation phase, the communities nearby the project area which are

Wat Thamsinthusopa, Wat Nong-Tangbun, Wat Kok Muang and Wat Nongkratart would

expose to noise levels of 14.7-31.0 dB(A). The estimated sound pressure levels were below


T-EIA208102 10-5 F208102Chap10E

the standard of 70 dB(A) regulated by the Notification of the National Environment Board

No.15 (B.E.2540). The impacts of the annoyed noise level on the nearby communities were

found to be nil during daytime and nighttime.

10.3 Surface Water Hydrology and Surface Water Quality

The activities of the power plant potentially impact the impacts on the surface

water quality outside the power plant during 2 phases, i.e., the construction and operation

phases. During the construction phase, there are 2 important sources of wastewater, i.e.,

the wastewater from the consumption of the contractor(s) and the construction workers.

The sanitary wastewater generated from the all construction workers is discharged to the

compact wastewater treatment systems. The treated effluent is stored in the sumps for later

uses, i.e. spraying over the construction area and other vacant areas of the project to

suppress dust dispersion without discharging to the outside. In addition, the storm water

may wash away the sediment from the construction area into the water resources. Hence,

the Nong-Saeng Power Plant Project specified the mitigative measures for flood control by

requiring the drainage of storm water into the temporary sump in order to let the sediment

settle, and the clear water is separated for uses in the construction and subsequently

drained into the receiving water resources.

During the operation phase, the Nong-Saeng Power Plant Project utilizes the

water from the Pa-Sak River by pumping it at a rate of 46,932 cubic meters per day when

using natural gas as fuel and 38,518 cubic meters per day when using diesel oil as fuel.

The water from this river will be stored in the 1,600,000 cubic meter raw water reservoir of

the project and subsequently used for the follows:

Natural gas firing Diesel oil firing

(cu.m./day) (cu.m./day)

Demineralization 936 954

Cooling 45,918 37,490

Sanitary use in the office 30 30

Other uses 48 44

The project is designed to reuse the effluent as much as possible. The

management of the effluent from the project operation is considered to be 2 parts as

follow :


T-EIA208102 10-6 F208102Chap10E

(1) Cooling water blow down from the cooling system. The quantity of this

water is 11,276 and 9,168 cubic meters per day when using natural gas and diesel oil as

fuel respectively. The cooling water blow down is drained into two 45,000 cu.m. cooling

water blow down ponds which can retain the effluent for 3 days before discharging into

Klong Huaiba (Klong Nong-Ngu-Loem).

(2) Effluent which is not the cooling water of the project is splited into 2

portions as follows:

- Effluent contaminated with chemicals includes the effluent from the

demineralization system, contaminated water from the chemical

storage area, laboratory, etc. These effluent is collected and sent to the

neutralization pit for treatment. The treated effluent of approximately

88 cubic meters per day is conveyed into the zero liquid discharge

system which turns them into reusable water. The remaining solids

from the final step of this system is subsequently disposed according

to the procedure specified in the Notification of the Ministry of

Industry, entitled “Disposal of Garbages or Unused Materials, 2005.”

- Effluent from the office buildings of 30 cubic meters per day is treated

in the septic tank and then collected in the holding pond and used for

watering the plants. The remaining water from plant watering (if any)

will be conveyed into the zero liquid discharge system. If the treated

effluent cannot be used for watering plants, all of it will be conveyed

into the zero liquid discharge system. The quantity of the effluent

from the office buildings and the chemical contaminated effluent is

118 cubic meters per day.

Therefore, in order to mitigate the potential impacts of the effluent from the

project on the receiving water resources and the communities around the project area, the

Nong-Saeng Power Plant Project established the appropriate mitigative measures in the

water quality action plan for both construction and operation phases. The effluent quality

is controlled to meet the effluent standard as specified in the Notification of the Ministry of

Industry, No.2, B.E.2539 (1996) entitled “Characteristics of effluent discharged from

factories”, and the Order of the Royal Irrigation Department No.883/2532, entitled “The

mitigation of low quality effluent discharged into the irrigation waterways and the

waterways connected with them within the irrigation project areas.”


T-EIA208102 10-7 F208102Chap10E

10.4 Forestry and Wildlife Ecology

It was found from the study and survey of forestry and wildlife living near the

power plant area that the condition of study area could be described as typically flat land

with flooded areas between rice paddy fields and communities. The conditions of forests

that covered the ground were cultivated forests mixed with structures and no natural forest

condition actually existed in this area. Moreover, the remaining big trees in the area were

grown by local people. For the diversity of wildlife species in the study area, the results

from this study revealed a total of 138 species including the wildlife that could be sighted

in the open, paddy field, grove and wetland habitat areas. This is because the existing

condition of the study area was paddy fields where rice growing was still active,

communities were generally located, some temples with a few trees also existed, and some

wetlands were sighted. This area having no condition of natural forest land was

completely altered from its natural features. Its ecosystem was a man-made one so no

natural wildlife habitats, i.e. forest, remained in the environment. The only existing habitat

areas included paddy fields, deserted lands, wetlands and communities so the wildlife

species found in this area were the species that had well adapted themselves to survive in

the communities. No wildlife species living in the dense forest habitats was found and the

sighted ones all had the capability to adapt themselves very well.

10.5 Aquatic Ecology and Fishery

The Nong-Saeng Power Plant Project will drain the flowing water during its

construction phase and the effluent from the cooling system into Klong Huaiba (Klong

Nong-Ngu-Loem) during its operation phase. The drainages of the effluent may affect

aquatic ecological system by reducing the number of the planktons and young aquatic lives

which may be entrained in the water to be pumped for the project’s uses.

10.6 Land Use

The development of Nong-Saeng Power Plant Project requires an area of 570

rai. At present, the major parts of this area are mostly paddy fields, grass fields and

deserted or vacant areas. The pumping station is located in an area of approximately 1 rai

and the water pipeline is of approximately 16 kilometers in length. The construction of the

water pipeline requires an area of approximately 2 meters in width, starting from the

pumping station upstream of the Rama Six Dam and routing in parallel with the road along


T-EIA208102 10-8 F208102Chap10E

the bank of Klong Rapeepatana-East to the project site. The water drainage pipeline with a

length of only 150 meters and a width of approximately 2 meters will be routed from the

project site, crossing under the road along the bank of Klong Rapeepatana, to merge with

the discharge pipe on the reservoir side and then into Klong Huaiba (Klong Nong-Ngu-

Loem) which is on the south side of the reservoir. Therefore, the potential impact is

considered to be low.

10.7 Water Usage

During the construction phase of the project, the maximum number of the

workers is 6,000 consuming approximately 360 cubic meters of water per day (which was

estimated from the water consumption of the workers at a rate of 60 liters per person per

day). The project will buy the water either from the Office of Water Supply in Nong-Kae

District or the Office of Water Supply in Taruer District. Considering the existing water

production capacity of the Office of Water Supply in Nong-Kae District of 573,462 cubic

meters per month and its water dispensing rate of 483,820 cubic meters per month, it can

be seen that this agency still have the water supply reserve of 90,042 cubic meters per

month. The Office of Water Supply in Taruer District has its existing water production

capacity of 159,787 cubic meters per month and water dispensing rate of 113,378 cubic

meters per month, and still have the water supply reserve of 46,409 cubic meters per

month. During its operation phase, the Nong-Saeng Power Plant Project will pump the

water from the Pa-Sak River (at the upstream of Rama Six Dam) at the average of 46,932

cubic meters per day or 1.41 million cubic meters per month for its uses in electricity

generation, cooling water and others within the power plant during the rainy season. In

June to November of this season, there is a large quantity of the remaining water released

from the Rama Six Dam into the Pa-Sak River (at the downstream of Rama Six Dam) at

the rate of 100-642 million cubic meters per month. During these months of the year, the

power plant can pump the water with very low impact on the downstream areas of the

Rama Six Dam. This is because the quantity of water to be used in the power plant is less

than 1.41% of the water released through the Rama Six Dam during the period of the least

quantity of water in the rainy season. In the first month of the rainy season (May) and the

beginning of the dry season (December), the water consumption of the power plant is

approximately 5.6% of the irrigation water to be released into the Pa-Sak River (at the

downstream of Rama Six Dam). This water quantity is considered to impose slight impact.


T-EIA208102 10-9 F208102Chap10E

on the water discharging to the downstream of Rama Six Dam, and definitely no impact on

the water flowing into Klong Rapeepatana-Main Canal. During the dry season (January

through April), almost all of the water quantity at the upstream of Rama Six Dam is

diverted into Klong Rapeepatana-Main Canal for irrigation purpose. However, it was

found from the analysis of the water balance that the quantity of water usage of the project

was less than 1% for irrigation. The project has planned to construct a reservoir with a

capacity of 1,600,000 cubic meters for reserving its raw water. With the availability of this

reservoir, the Nong-Saeng Power Plant will be able to operate for a period of 39 days

without pumping the water from any outside source when a problem of water shortage

arises in the dry season. Hence the water usage of the project, particularly during the dry

season, will not impose any impact on the existing agricultural areas. In case of Klong

Huaiba (Klong Nong-Ngu-Loem), this canal will be benificial from the quantity of the

discharged water of the project because of the increase in its water quantity, particularly

during the dry season. This can be considered as a positive impact of the project.

10.8 Transportation

The estimated traffic volume in terms of passenger car units (PCU) on

Highway No.1, No.329, No.3043 and Road along the bank of Klong Rapeepatana (left and

right stream) were found to be 141,541, 11,660, 3,126, 969 and 208 cars per day

respectively. The V/C ratio values indicating the vehicular capacity of the road were found

to be 0.3, 0.2, 0.06, 0.02 and 0.004 respectively. The results revealed that Highway No.1,

No.329, No.3043 and Road along the bank of Klong Rapeepatana (left and right stream)

could handle more traffic volume. Besides, the V/C ratio on Road along the bank of Klong

Rapeepatana (left and right stream) during rush hours or 08.00-10.00 a.m. and 04.00-06.00

p.m. were found to be in the rang of 0.002-0.01 and 0.004-0.02 respectively. The vehicle

volume was estimated to be increased during construction and operation phase by

approximately 150 and 80 cars per day respectively. The V/C ratio was then found to be

indifferent. Therefore, the impacts on traffic condition during the construction and

operation phase were considered to be quite low.

10.9 Drainage and Flood Control

The land preparation, general construction activities, and operation of Nong-

Saeng Power Plant potentially result in impacts on the drainage condition and induce

flooding. The most potential cause of flooding is the rainfalls over the area covered by the


T-EIA208102 10-10 F208102Chap10E

Klong Preol Water Conveyance and Maintenance Project which has a road along its

boundary. Moreover, the terrain slopes down to Klong Rapeepatana so most of the

rainwater will flow towards this canal; whereas the side dike along the right bank (east) of

this canal, or the road with a high elevation, will retain and accumulate the water that flows

towards it because the water cannot flow over. As mentioned earlier, the Nong-Saeng

Power Plant Project area is in the moderate flood risk zone.

The existing drainage systems around the Nong-Saeng Power Plant Project

include several natural discharge canals, i.e., Klong Nong-Srueng, Klong Huaiba (Klong

Nong-Ngu-Loem), Klong Ban-Kokkeelek, and Klong Nong-Kae. All of these four canals

cross Klong Rapeepatana with a water gate located at each confluence to control the water

flow. These canals are always dredged to keep them from being shallow. However,

problems still exists regarding the drainage that cannot be managed in time during the

heavy rainfalls over the area. This problem has caused flooding and stagnant waters

especially at the confluences of the discharge canals (Klong Nong-Srueng/Klong Huaiba

[Klong Nong-Ngu-Loem]) and Klong Rapeepatana. There is siphon building at Klong

Ban-Kokkeelek that facilitates the discharge flow to pass under Klong Rapeepatana. The

construction of a drainage channel, currently under consideration, which will facilitate the

drainage of flood and stagnant waters along the side dike of Klong Rapeepatana starts from

the north to the south along Klong Rapeepatana and merges with the siphon to allow the

discharged water flow under Klong Rapeepatana. At present, the terrain condition is

changed to some extent. There have been some land preparations (i.e. land filling and

elevating, self-managed land preparation, etc.) that do not take natural drainage into

consideration. Moreover, the road network around the project area has made it difficult to

drain the rainwater from the area. If a sufficiently efficient management is not available,

an impact may be resulted. Therefore, in order to prevent the impact that may be induced,

the project must provide a means for draining the rainwater and preventing the occurrence

of flooding.

10.10 Solid Wastes

During the construction phase, the maximum of 6,000 workers are expected to

be employed, generating approximately 5.1 tons of garbages per day (bases on the criterion

that one person will generate garbages at a rate of approximately 0.85 kilogram per

individual per day). Other solid wastes generated during the construction phase include


T-EIA208102 10-11 F208102Chap10E

scrap materials from soil excavation (e.g., scraps of soil, sand, brick, etc.), scraps of

construction materials (e.g., fractions of structures, or used or unwanted materials, etc.),

hazardous wastes (e.g., batteries, motor oil, hydraulic oil, filters, mineral oil, cleaning

agents or used solvents) as well as enamel products or rejected paints. The project will

provide a specific space for storing each type of garbages or solid wastes, including

appropriate containers for segregating each type of solid wastes which will facilitate the

disposal according to the Notification of the Ministry of Industry, entitled “Disposal of


During operation phase, 6 types of solid wastes are generated as follows :

(1) General garbages from Office Buildings are collected in the bins and

disposed outside the plant by the contracted local agency.

(2) Spent Air Filters are separately collected by the project and disposed by

an authorized waste disposal facility.

(3) Spent Lubricating Oil and oil from oil separators is collected in 200 litre

tanks and disposed by an authorized waste disposal facility.

(4) Spent Resins are returned to their manufacturer or separately stored and

subsequently disposed by an authorized waste disposal facility.

(5) Sludge from water treatment system.

(6) Solid wastes from evaporation process are stored for disposal by an

authorized waste disposal facility.

Nong-Saeng Power Plant Project will dispose the solid wastes according to the

Notification of the Ministry of Industry, B.E.2548, entitled “Disposal of Garbages or

Unused Materials.”

10.11 Occupational Health and Safety

During construction phase, there are approximately 6,000 construction

workers. Working maybe risky to cause an accident so the project must have measures for

safe working and strictly enforce the implementation of the measures. For operation phase,

the environmental conditions in workplace within Nong-Saeng Power Plant might affect

health and safety of workers who are working within the power plant. Three parameters of

concern are as follows:

(1) Noise: The main noise sources in the power plant are gas turbine, gas

compressors, safety valve, etc. The sound pressure levels generated from those machines

and equipments are controlled by installing noise reduction equipments, such as Acoustic


T-EIA208102 10-12 F208102Chap10E

Wall, Encapasulate, Silencer at these equipments, assigning employees to work in a control

room, and enforcing them to wear noise protection equipments while working in the loud

noise area of higher than 80 dB(A).

(2) Heat: The main heat sources in the power plant are steam turbine,

combustion turbine and HRSG. The power plant uses insulation system for heat protection,

and enclosure of heat sources. Employees are assigned to work in a control room and

enforced to wear heat protection equipments while working in heated area .

(3) Chemicals: The operation of the power plant concerned with some

chemicals. The important chemicals are sulfuric acid, sodium hypochlorite, ferric chloride,

which can be exposed by the employees, but the production process of the project is

operated in the closed system. However, the power plant provided personal protective

equipments for the employees who work with the chemicals, good ventilation within the

power plant, and training of employees on safe working with chemicals and procedures for

prevention and test for chemical leakage.

Regarding the measures for the working environment, it revealed that the

impacts on occupational health and safety of the employees in the power plant were low.

However, Nong-Saeng Power Plant specified the action plan on occupational health and

safety in order to mitigate the impacts of working environmental conditions on employees’

health and safety.

10.12 Socio-economics

The socio-economic study was conducted by collection of statistics related to

the study area along with the field survey in the radius of 5 kilometers around the site-to-be

of the Nong-Saeng Power Plant of the Power Generation Supply Co., Ltd. The study

started with visiting chiefs of offices at province, district and subdistrict levels, community

leaders and local administration organization executives. It was followed by organization

of public hearing, plant tour, and listening to opinion of 1,095 families. It was found that

the number of communities in the study area agreed with the project was quite low. It was

attributed to anxiety about impacts on agricultural careers and people’s health. The impacts

on health were expectly resulted from wastewater and stack emissions from the power

plant. This expectation was arisen from previous information about impacts of other power

plants. For the sample groups who agreed with the power plant construction, they showed


T-EIA208102 10-13 F208102Chap10E

their reasons, such as community development, local employment, more local economic

growth, convenient infrastructure and better community service, etc.

Although the Power Generation Supply Co., Ltd., has specificed the mitigative

measures for the potential impacts resulting from the operation of the Nong-Saeng Power

Plant project, the work plan on socio-economics is specified in order that the project is able

to cohabitate, to have good relationship and to share benefit with the community.

10.13 Public Relation and Public Participation

The project implementation during construction and operating period may

cause positive and negative impacts on people living around the Nong-Saeng Power Plant

Project. In order that the operation of the Power Generation Supply Co., Ltd. brings about

the advantages to communities and reduces negative impacts as much as possible, the

Power Generation Supply Co., Ltd., has prepared the action plan and has organized people

participation activities in every steps continually in the study and EIA. The activity of

public hearing in the study and EIA was to make community leaders understanding about

reasons, necessity of the project operation, including the procedure of the study and

assessment of environmental impact which involve public participation in data collection,

information dissemination and listening to opinion and suggestion of community leaders

and relevant persons. The public hearing was one of the stages opened for participants to

express opinion, anxiety, important issues or suggestion which are useful for setting

mitigative measures for minimizing social impacts and particularly, the potential

environmental and social impacts during construction and operating phases. The

stakeholders had given opinion and suggestion which are useful for the completeness of

the study results which led to the acceptance and participation of local sector. The

activities performed were attributed to the cooperation of community leaders and people in

communities around the power plant. They attended the meeting, asked questions and gave

suggestion to the project. Analysis and evaluation of the impacts indicated that some

communities were still anxious about potential impacts resulted from the Nong-Saeng

Power Plant Project. However, more than half were aware of necessity of energy

development work and importance of community participation in the study, monitoring of

environmental impacts, watching and control of environmental problems in the

community. They were willing to be representatives for monitoring and inspection of

environmental impacts. It is expected that if the work on making understanding and


T-EIA208102 10-14 F208102Chap10E

learning is performed with the communities and community leaders, the community

members will join the network for monitoring and inspection of environmental impacts in

communities around the Nong-Saeng Power Plant Project. It will also encourage the

communities to participate in any collaborations and profit sharing. All of these activities

will lead to continuous development of the project and acceptance from people living

around the project.

10.14 Recommendation

Based on the results of the EIA study, a few recommendations are drawn for

the project to consider conducting further studies and investigations as follows:

(1) The project should, under all conditions, strictly enforce the

implementation of the proposed environmental measures designed for the construction and

operation phases in order to avoid or minimize both environmental and social impacts on

the surrounding communities and general public.

(2) The project should always conduct a preliminary environmental study

when planning to make any modification of the project design and/or the environmental

action plan to find out the environmental feasibility before making the decision.

(3) A study should be conduct to investigate the effect of climate change on

the water availability in the Pa-Sak River and the required reserve volume of raw water in

the 1,600,000 cubic meter reservoir during the entire operation life of the proposed power

plant.

(4) The greenhouse gas emissions from the proposed power plant should be

investigated during the operation phase. The findings from the investigation will be a

useful database for many future uses, internally and externally.

Environmental Report (Pre-Construction and Construction Phases) Nong Saeng Power Plant Project


Environmental Audit/SECOT 1 SERVER/Env Audit Text (Eng).doc

1. Background Information

Nong-Saeng Power Plant Project of Power Generation Supply Co. Ltd. is situated

in an area of about 570 rai. The area is divided into 2 parts including the power plant area of

about 300 rai in Moo 4 Ban Huaiba, Nongkob Sub-district, Nong-Saeng District, Saraburi

Province; and the reservoir area of about 270 rai in Moo 7 Ban Thamsinthusopa, Nong-

Namsai Sub-district and Moo 2 Ban Klong, Kokmuang Sub-district of Pachee District,

Ayudhya Province. The proposed power plant, using natural gas as primary fuel and diesel

oil as secondary fuel, will have an install capacity of about 1,653 megawatts (MW). About

1,600 MW of the electricity to be generated will be sold to the Electricity Generating

Authority of Thailand (EGAT) while the remaining 53 MW will be used in-house. Natural

gas for use as primary fuel of the project at a rate of about 265.18 million cubic feet per day

will be obtained from PTT (Public) Co., Ltd., whereas diesel oil as secondary fuel will be

used at a rate of about 6.594 milliion liters per day. Raw water for the project will be

pumped from the Pa-Sak River, at upstream of Rama Sixth Dam, for storage in a 1,600,000 m3

reservoir before use. Wastewater to be induced by the project will be treated and reused, and

the discharged water from the cooling tower (the only discharged effluent) will be routed into

the holding pond prior to discharge into Klong Huaiba (Klong Nong-Nguleum). The

discharged water quality will be according to the effluent standards under the Notification of

Ministry of Industry, No. 2 (1996), “Designation of characteristics of effluents to be

discharged from factories”; and Command of the Royal Irrigation Department, No. 883/1989,

“Prevention and mitigation of discharging low quality effluents into the irrigating waterways

and the waterways connected to the irrigating waterways in the irrigation project area.”

Environmental audit is to inspect and monitor the environmental performance of

the project as specified in the environmental impact assessment report (EIA) which was

approved by the Office of Natural Resources and Environmental Policy and Planning on

September 16, 2009 (Approval Letter No. NSE 1009.7/7072). At present, the project is at the

stage of conducting the land preparation work in the above-mentioned two (2) key areas i.e.

the power plant and reservoir areas.

The audit for the performance on the environmental impact mitigation measures

during the pre-construction and construction phases includes the measures on 13 aspects : i.e.

air quality, noise, surface water hydrology and quality, forestry and wildlife, aquatic ecology

and fishery, land use, water usage, transportation, drainage and flood control, solid wastes




management, occupational health and safety, socio-economics, and public relations and

participation.

2. Objectives

To audit and evaluate the environmental performance of the project for

consistency with the conditions specified in the EIA report, and to recommend guidelines (if

any) for improving the environmental performance to make it suitable and practical.

3. Scope of Work

The environmental audit has been planned to inspect and evaluate the following

key study issues during the pre-construction and construction phases as specified in the EIA

report:

(1) Air quality

(2) Noise

(3) Surface water hydrology and quality

(4) Forestry and wildlife

(5) Aquatic ecology and fishery

(6) Land use

(7) Water usage

(8) Transportation

(9) Drainage and flood control

(10) Solid wastes management

(11) Occupational health and safety

(12) Socio-economics

(13) Public relations and participation

4. Methodology

The audit for the performance on the environmental measures includes the following

main steps:




4.1 Review of Data

Review of related data and documents which can be classified as follows:

(1) The EIA report and environmental measures performance report

(2) Permit documents issued by various government offices as well as the

conditions attached with the permits

In detail, the pre-audit procedure is as follows:

(1) Setting a preliminary scope of work and work plan

(2) Reviewing and inspecting the related documents such as laws in use,

criteria under the EIA report and EMS (Environmental Management System), etc.

(3) Collecting/gathering project data and documents

(4) Preparing audit forms, and setting the scope and plan for the audit

4.2 On-site Survey

A survey was conducted in the two (2) key areas of the project that are at the

stage of land preparation, i.e. the power plant and reservoir areas, in order to audit the actual

performance on the environmental impact mitigation measures specified in the EIA report.

4.3 Reporting

The audit report includes the following sections:

(1) Initial summary of project data (e.g. location, process, utility systems,

pollutants and control, wastewater and management, solid wastes and management, noise and

control, occupational health and safety, and green area) includes the data relating to the

current performance of the project along with its location.

(2) Presentation of the results and analysis along with the results of audit on the

environmental impacts of the project obtained from the on-site survey and review of data by

classifying into separate issues i.e. air quality, water quality, noise, solid wastes, occupational

health and safety, and other related items as well as the audit results of the related process

supporting and utility systems.

(3) Summary of the audit results and recommendations derived from auditing

the environmental impacts, and presentation of guidelines for the improvement of

environmental impact mitigation measures and environmental quality monitoring program as

per the EIA report approved by the Office of Natural Resources and Environmental Policy

and Planning as well as presentation of other environmental impact mitigation measures to be

implemented as mandated by the concerned government offices.




5. Anticipated Results

The project performance relating to environmental management and

implementation of environmental measures as specified in detail in the EIA report, and

recommendations (if any), derived after the environmental audit, for the project to put into

practice and improve the environmental management for its utmost benefit.

6. Audit on Environmental Impacts

Nong-Saeng Power Plant of Power Generation Supply Co., Ltd. is currently at the

stage of land preparation of two (2) key areas i.e. the power plant and reservoir areas. These

areas are as specified in the EIA report which was approved by the Office of Natural

Resources and Environmental Policy and Planning (Approval Letter No. NSE 1009.7/7072).

The audit on environmental impacts was conducted so as to be consistent with the

environmental impact mitigation measures. The results of the audit on the project performance

relating to the environmental impact mitigation measures can be summarized as shown in

Table 6-1.

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Table 6-1 Implementation of Environmental Mitigative Measures (Pre-Construction and Construction Phases)

Nong-Sang Power Plant Project of Power Generation Supply Co., Ltd.

Nong-Kob Sub-district, Nong-Sang District of Saraburi Province

Environmental

Impact Mitigative Measure Mitigative Action

Result Reference

compliance noncompliance

1. Air Quality Pre-Construction Phase

- Ambient air quality monitoring systems (AAQMS)

are installed in 4 community areas including Ban

Thamsinthusopa, Ban Nong-Tangbun, Ban Nong-

Ngu-Loem and Ban Khok Daeng for continuous

monitoring of the concentrations of total suspended

particulates, PM-10, sulfur dioxide, nitrogen

dioxide, and taking measurements of wind speed and

direction, and ambient temperature.

- Due to AAQMS could not

operate on time; air quality

monitoring (7 consecutive days)

was conducted during March 4-

12, 2011 as result in attachment.

Additional, continuous air quality

monitoring stations were installed

from May-September (or until

AAQMS have been installed

already).

* - Photo 1, air

quality monitoring

station.

- Appendix I,

Monitoring

results of ambient

air quality.

Construction Phase

- To spray water, at least twice a day, on soil piles and

areas where excavation of soil is taking place,

particularly on transport routes within the project

area.

- This measure is implemented.

*

- Photo 2, water

spraying.

- To cover the piles of soil and scrap materials with

canvas or plastic sheets to prevent the soil dispersion

during windy periods.

- The project immediately

crushes/presses/levels off the soil

trucked into the area, so no soil

piling is required in the project

area.

* -

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Table 6-1 Implementation of Environmental Mitigative Measures (Pre-Construction and Construction Phases) (Cont’d)

Environmental


Result Reference


1. Air Quality

(Cont’d)

- To have good housekeeping in the construction area. - This measure is implemented. * - Photo 3, rubbish

was kept in place.

- To limit the speed of motor vehicles within the

construction area to not exceed 20 kilometers per

hour.

- This measure is implemented. * - Photo 4, an

orderly speed

limit sign in the

project area.

- To limit the speed of the contractor’s motor vehicles

on public roads to not exceed 60 kilometers per hour.


orderly speed

limit sign by the

public road.

- To well cover the trucked materials/articles for the

entire transporting routes.

- This measure is implemented. * - Photo 6, orderly

coverage of

trucked materials

with canvas.

- To provide workers to wash the traffic surface of

public road in front of the project area after the

trucks going in or out of the project area.

- This measure is implemented. * - Photo 7, public

road surface

washing.

- To wash vehicle wheels before leaving the

construction area in order to reduce the amount of

soil particles (stuck on the wheels) falling off onto

the traffic surface.

- This measure is implemented. * - Photo 8, wheel

washing stations.

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Table 6-1 Implementation of Environmental Mitigative Measures (Pre-Construction Phase and Construction Phase) (Cont’d)

Environmental


Result Reference


1. Air Quality

(Cont’d)

- To prohibit rubbish burning within the construction

area.

- This measure is implemented. * - Photo 9, showing

“No burning of

rubbish” sign.

2. Noise Construction Phase

- To install iron or zinc sheets of a minimum 1.3-mm

thickness around the construction area, particularly

on the side nearby the residential areas of Ban

Thamsinthusopa and Ban Nong-Tangbun

communities, and to construct an earth dike of 4.5-

meters high above the ground level around the

project area.

- None of the loud noise inducing

activities is started, but a fence

has already been instructed

around the project area.

*

- Photo 10, zinc

panels installed

around the

project area.

- Piling and construction activities generating loud

noises shall be carried out in the daytime with a

notice to inform the communities at least 2 weeks in

advance.

- No piling is started and, up to

present, no vehicle running at

night-time is started either.

* -

- To select and use the equipment/machinery, and

construction technique(s) that induce the minimum

noise levels.

- No piling is started. * -

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2. Noise (Cont’d) - To avoid using the equipment or machinery simultaneously which cause loud noises continuously for a long period of time.


- To reduce the number of equipment/machinery used in areas adjacent to each other.


- To install the frequently movable (back and forth) equipment/machinery as far as possible from the sensitive areas.


- To stop the engines or turn off the equipment/ machinery when they are not in use every time.

- This measure is implemented. * - Photo 11, equipment/ machinery are turned off when not in use

- To require the contractor to install the noise reduction equipment, e.g., silencers or mufflers at the loud noise equipment/machinery used in the construction activities and to regularly check the efficiency of the noise reduction equipment.


- To inspect and maintain the equipment, machinery and engines in good condition by scheduling the inspection of heavy machinery at least once a month.

- No written regulations are available.

* -

- To post a warning sign in each loud noise area and to enforce the workers to wear noise protective devices, such as ear muffs, ear plugs, etc. before entering the loud noise workplaces.


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Environmental

Impact

Mitigative Measure Mitigative Action Result Reference


3. Surface

Water

Hydrology

and Surface

Water Quality

Measures on Surface Water Hydrology

Construction Phase

- In the construction area, prior to making any land

preparation and construction of buildings or

structures, an earth dike of 4.5 meters high and a

drainage ditch on the outside of the dike are to be

constructed to prevent the sediment from being

washed away from the construction area and to let the

storm water from the rains in areas outside the project

site to flow and drain through freely without being

obstructed by the project area.

- The construction of drainage

ditch in the project area is started,

but the settling pond construction

is not started (waiting for the

drawings). There will be no

discharge of any run-off from the

project area until the settling

pond construction is completed

and a wastewater discharge

permit is issued.

*

- Photo 12, drainage

channels in the

project area.

- For the storm water to be pumped and drained from

the inside to the outside of the construction area, a

sump(s) must be provided for settling the sediment

(with the retention time of not less than 3 hours)

before discharging to the outside.










permit is issued.

* - Photo 12, drainage

channels in the

project area.

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3. Surface

Water

Hydrology

and Surface

Water Quality

(Cont’d)

Measures on Surface Water Quality

Construction Phase

- The sanitary wastewater from the construction

workers must be treated to meet the effluent quality

standard, i.e. BOD value of not more than 20

milligrams per liter and the total suspended solids

concentration of not more than 30 milligrams per

liter.

- The sanitary wastewater will be

collected in septic tanks and then

transported for disposal by the

municipality (currently in the step

of coordination).

*

- Photo 13,

washrooms and

septic tanks.

- Toilets for the construction workers must not be less

than 30 meters away from the surface water resources

outside the project area. The wastewater treatment

system must be provided for treating the sanitary

wastewater to keep the quality of the treated effluent

meeting the effluent standards.

- This measure is implemented. * - Photo 13,

washrooms and

septic tanks.

- The treated effluent is used for spraying over the

construction area and the vacant areas to reduce dust

dispersion, but not discharging into Khlong Huaiba

(Khlong Nong-Ngu-Loem).

- This measure is implemented. * - Photo 2, water

spraying.

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3. Surface

Water

Hydrology

and Surface

Water Quality

(Cont’d)

- It is a must to control and make sure that the garbage

and scraps of construction materials are not disposed

into the water resources outside the project area.

Containers must be provided for collecting the solid

wastes which are to be sanitarily disposed of. The

workers will be trained on the rules of practice.

- This measure is implemented. * - Photo 14, garbage

bins in the project

area.

- Appendix II, Work

safety regulation

documents.

4. Forestry and

Wildlife

Ecology

Measured on Forestry

Construction Phase

- To prohibit the construction workers from cutting

trees in the areas outside the construction site.


*

- Photo 15, tree cut

off prohibition

sign.

- After the land preparation for the construction area is

completed, it is required to plant the trees

immediately in all portions of land with no

construction activities and to designate the green

areas of the project.

- Land preparation related

activities are still ongoing, so the

project has not started to plant the

trees yet.

* -

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4. Forestry and Wildlife Ecology (Cont’d)

Measures for Wildlife Construction Phase The construction of the project requires cutting down of big trees which are the habitats of openbills and egrets. However, these birds only nest and lay eggs during the mating/breeding season (around October through April) so there are no active bird nests on the trees during other months of the year. Therefore cutting the trees off the mating/breeding season will definitely not destruct any nests and baby birds. The implementation of the construction activities will not impose any impact on the wildlife either, and thus it will not be necessary to require any direct measures for mitigating the impact on the wildlife and the problem (if any) can be solved by only selecting the right time for the required activities. Nevertheless, the mitigation measures should be established in order to maintain the sustainable conservation of wildlife resources as follows:

- The plan for cutting all the big trees in the project area must be implemented during other months of the year instead of winter months. This will prevent the destruction of the nests and baby birds of openbills and egrets, and the parent birds will be able to find the new places for nesting and thus no impact is anticipated.

- The project does not cut off any big tree.

* - Photo 16, trees and their conditions in the project area at present.

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4. Forestry and

Wildlife

Ecology

(Cont’d)

- Rules will be made to prohibit the workers and

personnel from hunting the wildlife or destructing the

lives of any species of wildlife in the project area and

its vicinity as well as prohibiting the outsiders to do

such wildlife hunting.

- This measure is implemented. * - Photo 17, hunting

prohibition sign.

5. Aquatic

Ecology and

Fishery

Construction Phase

- To prohibit the construction workers from fishing in

Klong Rapeepatana and Klong Huaiba (Klong Nong-

Ngu-Loem) by making rules and posting ‘No Fishing’

signs.


*

- Photo 18, fishing

prohibition sign.

6. Land Use Construction Phase

- To carry out the construction activities only within

the project area and to absolutely prohibit

placing/piling of equipment, machinery, materials,

etc. outside the project area.

- Areas for placing/piling the

materials of the project are within

the project premise which is

completely fenced.

*

- Photo 19, areas for

piling the materials

and machinery in

the project area.

- To clearly notify the concerned government agencies

and local residents about the areas to be used for

construction, construction boundary, and construction

schedule at least one month before the construction

activities commence.

- The project has already notified

the concerned Tambon

Administrative Organization(s)

[TAOs] and concerned

government agencies.

* - Appendix III,

Documents for

notifying the

concerned

government

agencies.

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6. Land Use

(Cont’d)

- To do the maintenance works on the damaged traffic

surface in order to restore its original condition as per

the requirements of the concerned government

agencies.

- A permit for the traffic surface

maintenance/ improvement is

already issued by the Department

of Highways and the

maintenance/improvement work

for some areas is completed.

* - Appendix IV,

Documents for

requesting

permission to

improve traffic

surface from the

Department of

Highways.

- Photo 20, traffic

surface maintenance

work.

- To control the construction activities as per the

specified plan.

- No usage of private lands * -

In case the construction involves crossing of the private

roadway(s), additional measures are set up as follows:

- To inform the land owner(s) in advance about the

construction plan and schedule; and after the pipeline

construction in any excavated trench(s) is completed,

the soil must be put back in its original place. If such

work can not be completed within the same day,

metal sheets must be placed over each excavated

trench(s) for regular commuting.


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6. Land Use

(Cont’d)

- To string a rope around the construction area

adjacent to each of the involved roadways and to also

install the lights and to post warning signs.


- To appoint a committee to oversee and control the

social related work performance, and to follow up the

construction activities, negotiate with the land

owner(s) and solve the arisen problems. The

committee has the following responsibilities:

- A committee is already appointed

to oversee and control the social

related work performance.

* - Appendix V,

Community

Participation

Committee

appointment

document.

• To inform the communities about the

complaint(s)/problem(s) by posting announcements

in the public places (not less than 3 places) within

the jurisdiction areas of the concerned Tambons.

- No complaint is filed. * -

• To inspect all evidences and may invite the experts

to jointly investigate in case of complicated

problems.

• To inform the communities about the investigation

results by posting announcements in the public

places (not less than 3 places) within the

jurisdiction areas of the concerned Tambons.

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6. Land Use (Cont’d)

• In case the problem or complaint is caused by the project, the committee will advise the project to solve it and be liable for the resultant damages.

• In case the project is unable to solve the problem, the committee will inform the concerned government agencies, e.g., the Office of Provincial Industry, Tambon Administrative Organizations, etc.

7. Water Usage Construction Phase - Measures are established to prevent scraps of

construction materials from being washed into Klong Huaiba (Klong Nong-Ngu-Loem) which may cause difficulty in using the irrigation water.


*


channels in the project area.

8. Transportation Construction Phase - To assign the contractor to prepare and submit a

traffic/transportation plan to the project for consideration before starting the construction activities, and to enforce the contractor to strictly follow the traffic rules.


*

- Appendix VI,

Documents/letters relating to the application for a permit to transport materials on the transporting route.

- To avoid transportation of materials or machinery of large size during the rush hours, i.e., 07.00-09.00 a.m. and 05.00-07.00 p.m.

- This measure is implemented. * -

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8. Transportation

(Cont’d)

- To avoid transportation passing through the

community areas by using a detour around the

outskirts of the town or a special route between the

towns.

- This measure is implemented. * - Appendix VI,

Documents/letters

relating to the

application for a

permit to transport

materials on the

transporting route.

- To avoid transportation during heavy rains or bad

visibility.

- No vehicle running at night-time. * -

- To contact and coordinate with the highway police in

advance, i.e. before making any transportation of

materials or machinery of large size, for setting up a

transporting route, and requesting a police car to

facilitate and lead the way for such transportation.

- The project is at the stage of

contacting and coordinating with

the highway police.

* -

- To conduct the public relations in order to inform the

local communities and concerned government

agencies about the timetable, procedural steps and the

time periods of construction as well as the expectedly

increased traffic load due to the project

implementation. This must be conducted before the

construction takes place in order to welcome

comments from and exchange the ideas with the

communities and concerned government agencies

which will be beneficial for work planning.

- This mission is not yet

completely undertaken. The

preparation of public relations

signs is still underway. However,

project status/activities has been

informed to committee in the

meeting on regular basis.

* - Appendix VII,

Public relation

document.

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8. Transportation

(Cont’d)

- To limit the driving speed, i.e., not to exceed 20

kilometers per hour within the construction area and

not to exceed 60 kilometers per hour on public roads.

- This measure is implemented. * - Photo 4, a speed

limit sign in the

project area.

- To load the trucks in accordance with the

requirements of the laws and to well cover the

transported materials in order to prevent them from

falling off onto the traffic surface which may cause

accidents.

- This measure is implemented. * - Photo 6, coverage

of loaded materials

on the truck with

canvas.

- To provide shuttle buses for the workers to commute

between their housing and the project site in order to

reduce the number of vehicles on the roads.

- This measure is implemented. * - Photo 21, a shuttle

vehicle (running

between the

residential areas

and project site)

for the construction

workers.

- To provide training on safe driving for drivers. - This measure is implemented. * - Appendix II, Work

safety regulation

documents.

- To post warning signs or signals which can be clearly

seen during the daytime and night-time, at a distance

of approximately 100 meters before approaching the

construction area. The installation of warning signs

must be completed before the construction starts.

- This measure is implemented. * - Photo 22, a

warning sign

saying

“Construction area

100 meters ahead”.

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8. Transportation

(Cont’d)

- To provide a security guard or personnel with

responsibility for making flag signals at the entrance

and exit of the project construction area and the

construction area of the water pipeline along the

public roads.

- This measure is implemented. * - Photo 23, a traffic

control officer.

- To have a parking lot and to strictly prohibit parking

of vehicles on the shoulders of the highways.


orderly parking lot.

- To install aiding equipment, e.g., metal sheets to be

laid over the trenches, temporary bridges or drainage

pipes for facilitating the safe and efficient transport of

machinery across the obstacles, etc.

- A plan is set for constructing a

temporary bridge to connect the

two (2) key construction areas

and a permit is already requested

from RID. The construction is

expected to complete in April

2011.

* - Photo 25, metal

sheets laying over

a trench for

vehicles crossing.

- Appendix VIII,

Document/letter

sent to request a

permit to build the

bridge.

- To record the statistics of accident from

transportation on the transporting routes including the

details and causes of accident for use in planning and

determining the appropriate preventive measures.

- This measure is implemented. * - Appendix IX,

Accident statistics

documents/reports.

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8. Transportation

(Cont’d)

- To do the maintenance works on the roads that are

damaged by transportation of materials/equipment so

as to restore their original condition or better.

- This measure is implemented. * - Photo 21, traffic

surface maintenance

activity.

- Appendix IV,

Documents for

requesting

permission to

improve traffic

surface from the

Department of

Highways.

9. Drainage and

Flood Control

Construction Phase

- To construct a drainage ditch for collecting the storm

water and then start the land preparation in the dry

season, and to construct a dike around the land

preparation areas before the rainy season begins.










permit is issued.

*


channels in the

project area.

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9. Drainage and

Flood Control

(Cont’d)

- To construct 2 holding ponds and 2 storm water

sumps with a total capacity of 119,000 cubic meters

at the construction site for retaining the storm water

from the rains during the construction phase; and to

control the pumping of the discharged water into

Klong Huaiba (Klong Nong-Ngu-Loem) by observing

the water level at the discharge point. If it is found

that the water level of the canal is lower than 3.5





- At present, the project is using an

existing sump in the area as the

temporary settling pond.

*

- Photo 26, the

temporary settling

pond.

10. Solid Wastes Construction Phase

- To request the contractor to classify the solid wastes

by types, to provide appropriate and adequate number

of containers for each type and install the containers

at various points within the construction area, and to

dispose of these wastes according to the Notification

of the Ministry of Industry, entitled “Disposal of


- Bins for the classified garbage/

rubbish are provided and the

project is coordinating with a

local government agency to

dispose of these wastes.

*

- Photo 14, garbage

bins in the project

area.

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10. Solid Wastes (Cont’d)

- To contract the local agency for collecting the garbage everyday to avoid overfilling.

- The project is coordinating with a local government agency to disposal of these wastes.

*

- To manage each type of solid wastes anticipated to be generated during the construction phase which include scrap materials from soil excavation (e.g., scraps of soil, sand, brick, etc.), scraps of construction materials (e.g., fractions of structures or used or unwanted materials, etc.), hazardous wastes (e.g., batteries, motor oil, hydraulic oil, filters, mineral oil, cleaning agents or used solvents) as well as enamel products or rejected paints and general garbages of approximately 5,100 kilograms per day. The project will provide a specific area for storing each type of garbage or solid wastes, and appropriate containers for classifying each type of solid wastes in order to facilitate the disposal according to the Notification of the Ministry of Industry, entitled “Disposal of Garbage or Unwanted Materials”, 2005.

- Only general wastes are generated at present (no other types of wastes).

* - Photo 14, a garbage bin in the project area.

- To prohibit burning of garbage or leaves within the construction area.

- This measure is implemented. * - Photo 9, burning prohibition sign.

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11. Occupational

Health and

Safety

Construction Phase


- The project in conjunction with the contractor of the

project construction will appoint a committee and

personnel for safety, occupational health and working

environment with responsibility to establish policy

and work guidelines. The safety manual is to be

prepared 1 month before the commencement of

construction works and distributed to every

employee. In addition, training on construction safety

will be arranged for all levels of personnel and

relevant knowledge provided to every employee

working for this project. These activities will be

performed in order to educate every employee with

basic knowledge and awareness of work safety.

- Due to the number of workers of

the project are only 40 at present

which implies that it is not the

time to meet the requirement on

the appointment of committee.

However, the project has already

assigned a safety officer (i.e.

Khun Anucha) with the duty to

control/oversee the occupational

health/safety and working

environment.

- An orientation meeting on the

safety and work-related

rules/regulations has been

arranged for the workers before

starting to work.

- The safety manual is at the stage

of preparation.

*

-

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11. Occupational

Health and

Safety

(Cont’d)

- The procurement of safety equipment including

safety glasses, safety masks, safety gloves, safety

shoes, safety ropes, respirators for toxic gases, noise

protection devices, and showers/eye washers in case

of direct contact with chemicals is to be managed

along with training on the use of the equipment and

how to work safely (e.g. the use of slings, pulleys and

chains for lifting, storage and inspection methods of

lifting equipment/machinery, etc.), climbing up the

high altitude, and precautions against falling off.

- This measure is implemented. * - Appendix II, Work

safety regulation

documents.

- Photo 27, a safety

warning sign.

- Photo 28, an

employee wearing

the PPE.

The employees working in the confined areas must be

trained as required by the laws (e.g. on the application

of gas detectors when entering the confined areas, use

of ventilating fans in these areas, having lookout

persons in front of the entrance of the confined areas,

etc.; and also on the erection of working stands,

driving in the project area, application of

communication instruments, proper chemical

loading/unloading methods, etc.).

- The employees working on occupational health/

safety and working environment shall be trained by

the Safety Officer including the specified courses and

duration, and awarded with a training certificate.

- Currently at the stage of starting

to set training plans

* -

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11. Occupational

Health and

Safety

(Cont’d)

- All employees shall be trained on safety before

working.

- This measure is implemented. * - Appendix II, Work

safety regulation

documents.

- The working section of occupational health/safety

and working environment will have a joint meeting

for planning relating to the construction works,

summarizing the problems and making suggestions

for the work performance before starting the work

every morning. Details and statistics are to be

recorded such as accident statistics with its causes,

severity and damage, including corrective measures.

- This measure is under the process

of the Occupational Health/Safety

and Working Environment

Committee, but it is not the time

to appoint the committee yet.

* -

- Inspection of safety equipment shall be conducted at

least once a month.

- Setting up of safety system is just

started and expected to complete

at the end of April 2011.

* -

- Arrangement for the meeting of the Occupational

Health/Safety and Working Environment committee

at least once a month in order to evaluate and

recommend for problem correction

- Setting up of safety system is just

started and expected to complete

at the end of April 2011.

* -

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11. Occupational

Health and

Safety

(Cont’d)

- Promotion of activities on occupational health/safety

and working environment.

- Announcements on occupational

health/ safety and working

environment are made to inform

the employees.

* - Photo 29, a sign of

announcement on

safety rules and

regulations.

- Appendix II, Work

safety regulation

documents.

- Posting warning signs with the word “No Entry for

Unconcerned People” in dangerous areas and

specifying construction zones.

- It was implemented. * - Photo 30, a sign

with the word

“Project area, no

entry”.

- Provision of adequate drinking water along with

sanitary facilities such as clean toilets for employees.

- Washrooms and toilets are

prepared for the construction

workers.

* - Photo 6,

washrooms and

septic tanks.

- Photo 31, the

provision of

adequate clean

water for the

employees.

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11. Occupational

Health and

Safety

- Provision of medical supplies and first-aid equipment

in case employees are injured and must be sent to

hospital.

- This measure is implemented. * -

(Cont’d) - Provision of assigned knowledgeable personnel with

responsibility for safety.

- This item is still under the

process of preparing the

documents to notify the

concerned government agencies.

* -

- Storage of instruments and equipment in an orderly

manner with routine inspection to ensure that they are

in good condition.

- This measure is implemented. * - Photo 32, piles of

materials/

equipment

arranged in an

orderly manner

within the project

area.

- Incorporating the mitigative measures into the

construction contract.

- The construction contract is made

by incorporating the regulations

on the mitigative measures.

* -

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Fire Prevention and Fire-Fighting System - The prime contractor must provide fire extinguishers

in a sufficient number for use by the employees working in the hazardous areas or in areas of intense heat and fire risk, such as metal welding. Each welding crew must have a fire extinguisher (dry powder) located in their workplace. For metal welding in any elevated area, the space beneath the working area must be covered with insulating materials in order to keep the sparks, resulting from the welding, from falling onto the lower area which may be unsafe for those working in such an area.

- The placement of fire

extinguishers is at the stage of selecting the mounting points.

*

-

- The prime contractor must prepare a coordinating plan with the local fire authority in order to get ready in case of emergency.

- This measure is implemented. * - Appendix X, Documents used for coordinating with the fire-fighting agency.

- Control of the entrance and exit of the construction-induced hazardous areas and their associated traffic, and also posting hazard warning signs that are clearly visible to the Foreman or Safety Officer.

- This measure is implemented. * - Photo 23, a traffic control personnel.

- Photo 22, a warning sign saying “Construction area 100 meters ahead”.

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11. Occupational

Health and

Safety

- Preparation of fire-fighting equipment suitable for the

area conditions and types of work along with the

specified safe work procedure.

- The placement of fire

extinguishers is at the stage of

selecting the mounting points.

* -

(Cont’d) - Inspection of working condition and equipment used

in the construction, particularly at the locations

subject to hazards or a fire risk.

- The project is still at the stage of

selecting the points for mounting

or installing the equipment.

* -

- Routine inspection of fire extinguishers at least every

week.


selecting the points for mounting

or installing the equipment.

* -

12. Socio-

economics

Construction Phase

- Urgent corrective actions on information

dissemination without any hidden and distorted

agenda to all groups of stakeholders must be

performed.


*

- Appendix VII,

Public relation

document.

- Actions on listening to public opinion under the

people participation process by emphasizing a two-

way communication must be conducted for the

project acceptance by the communities in the project

and surrounding areas. Making understanding to lead

to good wills in the future must be managed in the

form of good cooperation and participation of the

local people. All actions must be open for the

communities to express their opinions and


setting up a plan.

* -

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12. Socio-

economics

(Cont’d)

suggestions to support the preparation of the

guidelines to prevent problems to the project owner,

local people and government sectors; and actions

must be conducted in the form of setting up a

community participation committee. These activities

will lead to good development and also avoid people

with a bad intention to disturb the peace.

- Actions on the project public relations before the

beginning of construction by distributing documents

and visiting community leaders and the local people.

The planned actions may use several media to make

the targeted groups receive correct and quick

information. This will prevent the consequent

problems. During the construction period, placards

about the project progress must be posted in the

public places or in front of the project site.

- This measure is implemented. * - Appendix VII,

Public relation

document.

- Consideration on the priority of local worker

recruitment (to create extra careers and incomes for

the communities) will lead to a good relationship

between the project and the communities. The

planned actions must be done according to the

suitability and capacity of the local workers.

- Local workers were already

recruited.

* -

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12. Socio- economics (Cont’d)

- Actions on the control, fostering and confirming the subcontractors to seriously prevent the migrant and local workers from quarreling among themselves and/or with the people in the local communities.

- This measure is implemented. * - Appendix II, Work safety regulation documents.

- Actions to control the construction activities to avoid disturbing the local people in the area and to rigorously and strictly apply the environmental measures for safety and accident prevention from the project construction.

- This measure is implemented. * - Appendix II, Work safety regulation documents.

- Setting up the public relations and coordination unit for explaining, making understanding during the constructing period, and receiving complaints from the people who are in trouble due to the construction

- A community coordination center is already established (the phone number is 081-704-5513).

- The project notifies the information to the communities via the quarterly reports which are distributed through mailing (starting from February 28, 2011). The communities receiving the information include twelve Tambon in Nong-Saeng District and Nong-Khae District of Saraburi Province, and Pachee District of Phra Nakorn Si Ayuthya.

* - Photo 33, the community coordination center.

- Photo 34, public relation document.

- Appendix VII,

Public relations

documents.

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12. Socio-

economics

(Cont’d)

- To inform through the public

relations about the community

coordination center and the

project construction schedule via

the radio wave “Power plant for

the communiities” at 107.25

MHZ on Monday through Friday

at 10.00-12.00 am.

- Photo 35, the

community

coordination center

and the project

construction

schedule

announced via the

radio wave.

13. Public

Relations

and Public

Participation

Public relations plan for making understanding

during the pre-construction/site preparation periods

A power plant is a large scale industry the construction

of which takes a long time and may cause impacts or

anxieties to the communities starting from site

preparation period. The Power Generation Supply Co.,

Ltd. has prepared a public relations plan for making

understanding to the local communities starting from

the beginning of the site preparation for the power plant

construction. In order to make the local communities

relaxed from anxiety and confident about the project

implementation, the public relations activities should be

done as follows:

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13. Public

Relation and

Public

Participation

(Cont’d)

- Making the project public relations placards,

communication channels and showing the

responsibility for the case of problems/impacts

resulting from the project-related activities. This will

make the people living in the area close to the power

plant relaxed from anxiety about the pollution

problems, accidents and health impacts.

- A community coordination center

is already established (the phone

number is 081-704-5513).

* - Photo 33, the community coordination center.

-

- Setting up a community coordination center or a call

center (temporary) of the Power Generation Supply

Co., Ltd. for receiving complaints from the

communities in order to make them confident that the

Company is responsible for any impacts caused by

the project subcontractors.

- A community coordination center

is already established (the phone

number is 081-704-5513).

- The project notifies the

information to the communities

via the quarterly reports which

are distributed through mailing

(starting from February 28,

2011). The communities

receiving the information include

twelve Tambon in Nong-Saeng

District and Nong-Khae District

of Saraburi Province, and Pachee

District in Phra Nakorn Si

Ayuthya.

* - Photo 33, the

community

coordination center


- Appendix VII, Public relations documents.

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13. Public

Relation and

Public

Participation

(Cont’d)

- To inform through the public

relations about the community

coordination center and the

project construction schedule via

the radio wave “Power plant for

the communiities” at 107.25

MHZ on Monday through Friday

at 10.00-12.00 am.

- Photo 35, the

community

coordination center

and the project

construction

schedule

announced via the

radio wave.

- Setting up a committee on public participation for

inspecting the implementation of environmental

measures during the construction phase. This will

encourage the communities to participate in watching

and inspecting the implementation of the mitigative

measures as well as the environmental development

in the communities. The project should support to

appoint a committee on public participation by

cooperating with the communities. The functions of

the committee should include the following:

• To share the ideas and suggestions for the

implementation of all environmental action plans of

the Nong-Saeng Power Plant Project.

• To participate in inspecting the implementation of

the environmental action plans.

- The Community Participation

Committee is already appointed.

* - Appendix V, Community Participation Committee appointment document.

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13. Public Relations and Public Participation (Cont’d)

• To appoint a working team for inspecting the environmental quality aspect of concern.

• To receive the complaints on environmental problems (if any) from the communities and to analyze the problems according to the process of complaint receiving and solving given in the action plan on socio-economics.

-

Construction Phase - To conduct the proactive public relations consisting

of a news/information dissemination process that will increase more learning about the project in a more perspective way. The public relations program should be carried out via all local media. The public relations in depth should be performed to make understanding to the individuals directly by having meetings or seminars on the following issues:


preparing the plan.

*

-

• Progress of the project operation. • Technical information about the power plant

operation, particularly how safe the security measures or the methods are including the methods that the Power Generation Supply Co., Ltd. has prepared to cope with the problems, obstacles and accidents during the construction period of the project.

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• Promotion of the green area, for example planting the trees in the public places of communities to compensate the power plant area. This will make a good attitude towards Power Generation Supply Co., Ltd. and the Company to consider and respond to the true needs of the communities.

-

- To produce public relation media, such as leaflets, hand bill and video, etc., containing the details of the power plant and pollution prevention systems which are easy to understand. This will create a positive image of the Power Generation Supply Co., Ltd.

- The project notifies the information to the communities via the quarterly reports which are distributed through mailing (starting from February 28, 2011). The communities receiving the information include twelve Tambon in Nong-Saeng District and Nong-Khae District of Saraburi Province, and Pachee District in Phra Nakorn Si Ayuthya.

- To inform through the public relations about the community coordination center and the project construction schedule via the radio wave “Power plant for the communiities” at 107.25 MHZ on Monday through Friday at 10.00-12.00 am.

* - Photo 33, the

community

coordination center


- Photo 35, the community coordination center and the project construction schedule announced via the radio wave.

- Appendix VII, Public relations documents.

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- To coordinate and organize the meetings with the

important government agencies or organizations in

the area such as the local government offices or the

occupational groups in order to inform the results of

the mitigative actions conducted by the Power

Generation Supply Co., Ltd.


preparing the plan.

* -

Compensation Plan for the Occupation Groups

Nong-Saeng Power Plant Project has set the

compensation measures for various occupation groups

(if they are imposed by the impacts of the project)

which are classified as follows:

- Meat Chicken–Egg Chicken Farming

• Chicken farms in a 1-km radius around the site of

power plant

Construction Phase: Nong-Saeng Power Plant

Project will make an agreement with the locals

who raise chicken for a living so as to insure

against the project-induced impacts i.e. to accept

to take responsibility to compensate for the loss

of benefit and to pay compensation for the

chicken farming if the chicken farmers intend to

not raise the chicks during the start of the power

plant construction. This is to prevent the chicks

- The compensation is in process. *

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from getting startled from the construction-induced nuisance noises. However, the farmers will be allowed to raise the chicks after the construction has already started so that the growing chicks can get used to the environmental conditions relating to nuisance noises and will not get startled by the construction-related noises. But if there is any impact induced, the project will be willing to take responsibility for paying the compensation for the investment cost as well as the anticipated lost profit from the farming, loss of benefit, and fines to be paid to the other party to the farming contract.

- Rice Farming • Rice farming: if the paddy fields in the project area

are adversely affected by the lights from the project, the project will pay the compensation for any damage.

• The project will consider allocating a 10-rai land parcel for conducting a demonstration paddy field.

• For the case of rice farm renters who used to rent a land parcel(s) for rice farming, the Nong-Saeng Power Plant Project will allow them to continue their rice farming in such land parcel(s) without charge.


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• The project will notify the rice farm renters one season in advance before starting the cultivation (about 4 months before the construction starts) so as to consider assisting them as much as possible in each season.

• The project will pay the compensation to the rice farm renters who rent the land parcel(s) in the project area including the cost of dismantling for their houses built in the project area.

• If any of the rice farm renters wishes the project to find an alternative occupation for him, the project will do as requested by finding a job in the power plant for him on a one-job-per-family basis.


- Mushroom Farming • In case the productivity of mushroom cultivation

is adversely affected by the use of effluent discharged from the Nong-Saeng Power Plant Project, the project will be willing to pay the compensation for any drop in mushroom productivity at a fair market price to the affected farmers.

• If such an impact occurs, the Nong-Saeng Power Plant Project will find the other water source(s) for them such as drilling a deep well or laying a water pipeline from a nearby water source or installing a filtering system.


Environmental Auditing Report (Pre-Construction Phase and Construction Phase) Nong Saeng Power Plant Project

Power Generation Supply Co., Ltd

Environmental Audit/SECOT 40 SERVER/Env Audit Pic

Ban Nong-Tangbun

Ban Khok Daeng

Ban Tamsinthusopa

Ban Nong-Ngu-Loem

Photo 1 air quality monitoring station during March 4-12, 2011




Photo 2 water spraying

Photo 3 rubbish was kept in place

Photo 4 speed limit sign in the project area




Photo 5 speed limit sign by the public road

Photo 6 coverage of trucked materials with canvas

Photo 7 public road surface washing




Photo 8 wheel washing stations

Photo 9 showing “No burning of rubbish” sign

Photo 10 zinc panels installed around the project area




Photo 11 equipment/machinery are turned off when not in use

Photo 12 drainage channels in the project area

Photo 13 washrooms and septic tanks

septic tanks




Photo 14 garbage bins in the project area

Photo 15 tree cut off prohibition sign

Photo 16 the trees and their condition in the project area at present




Photo 17 hunting prohibition sign

Photo 18 fishing prohibition sign

Photo 19 the areas for piling the materials and machinery in the project area




Photo 20 the traffic surface maintenance work

Photo 21 a shuttle bus (running between the residential areas and project site) for the construction workers

Photo 22 a warning sign saying “Construction area 100 meters ahead”




Photo 23 a traffic control officer

Photo 24 an orderly parking lot

Photo 25 metal sheets laying over a trench for vehicles crossing




Photo 26 the temporary settling pond

Photo 27 a safety warning sign

Photo 28 an employee wearing the PPE




Photo 29 a sign of announcement on safety rules and regulations

Photo 30 a sign with the word “Project area, no entry”

Photo 31 the provision of adequate clean water for the employees




Photo 32 piles of materials/equipment arranged

in an orderly manner within the project area.

Photo 33 the community coordination center




Photo 34 public relation document

Photo 35 the community coordination center and the project construction schedule

announced via the radio wave

T-MON208020-SECOT SERVER/Envi Audit-App.

Appendix I

Monitoring results of ambient air quality

Mar 4-5, 2010 0.138 0.119 0.156 0.165

Mar 5-6, 2011 0.146 0.132 0.248 -

Mar 6-7, 2011 0.098 0.097 0.137 0.298

Mar 7-8, 2011 0.096 0.100 0.166 0.124

Mar 8-9, 2011 0.061 0.051 0.070 0.094

Mar 9-10, 2011 0.078 0.066 0.082 0.162

Mar 10-11, 2011 0.104 0.096 0.146 0.144

Mar 11-12, 2011 - - - 0.171

Table 1

Monitoring Results of TSP Concentration in Ambient Air


during March 4-12, 2011


Ban Nong-TangbunDate

Standard* 0 330

24-hr Average Concentration (mg/m3)

Ban TamsinthusopaBan Nong-Ngu-LoemBan Khok Daeng

Remark : *Notification of National Environment Board, No.24 (B.E.2547).

Standard* 0.330

T-MTR210058/SECOT SEVER/MTR211058_Amb (Mar)/24/5/2011

Mar 4-5, 2010 0.110 0.093 0.126 0.087

Mar 5-6, 2011 0.100 0.097 0.167 -

Mar 6-7, 2011 0.067 0.069 0.085 0.113

Mar 7-8, 2011 0.058 0.062 0.078 0.052

Mar 8-9, 2011 0.040 0.035 0.048 0.037

Mar 9-10, 2011 0.050 0.046 0.055 0.094

Mar 10-11, 2011 0.076 0.072 0.094 0.085

Mar 11-12, 2011 - - - 0.085

Standard* 0 120

24-hr Average Concentration (mg/m3)

Ban TamsinthusopaBan Nong-Ngu-LoemBan Khok DaengBan Nong-TangbunDate

Table 2

Monitoring Results of PM-10 Concentration in Ambient Air





Standard* 0.120

T-MTR210058/SECOT SEVER/MTR211058_Amb (Mar)/24/5/2011

Date

Min. Max Min. Max Min. Max Min. Max

Mar 4-5, 2010 2.1 31.7 6.8 17.1 2.9 20.0 2.3 12.5

Mar 5-6, 2011 3.6 20.5 6.2 25.6 6.1 25.0 3.2 20.8

Mar 6-7, 2011 6.4 18.2 4.7 16.6 5.5 26.1 3.8 17.6

Mar 7-8, 2011 4.8 18.8 4.6 20.9 6.3 18.1 2.9 18.2

Mar 8-9, 2011 4.7 18.4 2.3 15.7 5.8 18.3 3.1 18.4

Mar 9-10, 2011 5.1 16.5 3.7 31.5 6.0 15.6 1.7 10.6

Mar 10-11, 2011 7.4 30.0 3.5 21.5 7.9 27.2 2.8 20.7

Standard*


Table 3

Monitoring Results of 1-hr average concentration of Nitrogen dioxide in Ambient Air Quality




1-hr Average Concentration (ppb)

170

Ban Nong-Tangbun Ban Khok Daeng Ban Nong-Ngu-Loem Ban Tamsinthusopa

T-MTR211058/SECOT SERVER/MTR211058_Amb (Mar)/NO2-1 hr/24/5/2011

Date

Min. Max Min. Max Min. Max Min. Max

Mar 4-5, 2010 2.7 17.6 2.6 10.9 1.5 8.1 1.2 9.8

Mar 5-6, 2011 3.9 12.9 3.1 6.5 7.1 9.2 1.7 15.8

Mar 6-7, 2011 4.2 17.3 5.5 7.2 4.5 9.8 1.8 9.1

Mar 7-8, 2011 3.9 6.7 6.4 7.7 5.3 6.1 1.1 8.4

Mar 8-9, 2011 3.0 7.1 2.3 7.4 5.7 6.6 1.0 12.5

Mar 9-10, 2011 1.8 8.3 0 6.8 6.0 6.7 1.3 12.5

Mar 10-11, 2011 2.0 10.6 4.4 7.2 4.5 7.4 2.3 15.7

Standard*


1-hr Average Concentration (ppb)

Table 4

Monitoring Results of 1-hr average concentration of Sulfur Dioxide in Ambient Air Quality




300


T-MTR211058/SECOT SERVER/MTR211058_Amb (Mar)/SO2 (1 hr)/24/5/2011

Mar 4-5, 2010

Mar 5-6, 2011

Mar 6-7, 2011

Mar 7-8, 2011

Mar 8-9, 2011

Mar 9-10, 2011

Mar 10-11, 2011

Standard*


5.9 5.6 8.5 6.5

Table 5

Monitoring Results of 24-hr average concentration of Sulfur Dioxide in Ambient Air Quality




Date24-hr Average Concentration (ppb)


6.6 6.0 4.8 5.6

6.2 6.4 6.1 4.1

5.0 6.9 5.7 4.0

4.4 5.1 6.0 8.7

4.6 5.2 6.3 6.3

6.0 6.6 6.8 7.6

120

T-MTR211058/SECOT SERVER/MTR211058_Amb (Mar)/SO2 (24 hr)/24/5/2011


Appendix II

Work safety regulation documents


Appendix III

Documents for notifying the concerned

government agencies


Appendix IV

Documents for requesting permission to improve

traffic surface from the Department of Highways


Appendix V

Community Participation Committee

appointment document


Appendix VI

Documents/letters relating to the application for a permit

to transport materials on the transporting route


Appendix VII

Public relation document


Appendix VIII

Document/letter sent to request a permit

to build the bridge


Appendix IX

Accident statistics documents/reports

Nong Saeng Power Plant Project

WEEKLY SAFETY REPORT (12/3/11 - 18/3/11) Date 18/3/11

1 Safety manpower report

Last Acc 12/3/11 13/3/11 14/3/11 15/3/11 16/3/11 17/3/11 18/3/11 Total Acc.

- 185 204 196 197 199 198 200 1,379

- 1,834 2,029 1,942 1,991 2,009 1,969 1,991 13,765

2 Accident report

3 Tool Box talk

POSITION

12/3/2011 Safety Office

13/3/2011 Supervisor

14/3/2011 Electric Engineer

15/3/2011 Supervisor

16/3/2011 Foreman

17/3/2011 Safety Office

18/3/2011 Civil Engineer

4 Safety Activities

123 Dust prevention from clearing work by spraying water456789

5 Other

N/A

0

This week

0

0

0

0

0

0

Last Accumulative

0

0

0

Clean public road after workingUse coversheet to protect dust out of the truck

Tool box talk to be conducted everyday workInstall safety sign board

Install waring lighting

0

0

Use temporary fence surround construction site

This Week Accumulative

0

0

0

0

0

0

Inspection heavy machineUse proper PPE during work and Traffic Control

-Stop work over 3 day

-Stop work not exceed 3 day

- Non Stop work

Manday

Manhour

DESCRIPTION

-Dead

-Disable

-Lost organ

Mr. Sompong

Mr. Arrom

Mr. Samaen

PERFORMED BY

Mr. Anucha

DATE DESCRIPTIONNAME

Mr. Sompong

Sino-Thai Engineering & Construction Public Co.,Ltd.

Mr.Chokchai

Use proper PPE during work and Traffic Control

Clean public road after working

Panelboard has the ground connection

Clean public road after working

Finish fencing work today

Speed limit control

Prepare drainage system in site

Mr. Anucha

9


Appendix X

Documents used for coordinating with

the fire-fighting agency

035-311-112 อ.ภาช 035-311-163 อ.ภาช 035-311-021 (199) อ.ภาช

035-311-955 (Pachee) (Pachee) (Pachee)

036-399-199 อ.หนองแซง 036-399-229 อ.หนองแซง 036-399-199 (199) อ.หนองแซง

(Nong-Saeng) (Nong-Saeng) (Nong-Saeng)

(กรณอบตเหต)

เบอรโทรศพทฉกเฉน (Emergency Telephone Numders)

Emergency Flow Chart

อบตเหต/ฉกเฉนผเหนเหตการณผปฎบตงาน

(Accident / Fire Alarm)

ผควบคมงาน

เจาหนาทความปลอดภยในการท างาน(Safety Officer)

082-823-7649

ผบาดเจบ

(Injurie)

รนแรง

(Seruous)

โรงพยาบาล

(Hospital)

สอบสวนอบตเหต

(Accident Investigate)

รายงาน

(Reporting)

ผบรหารโครงการ

(Emergency Manager)

089-500-2293

เจาของงาน(Project Manager)

(Consultant)

(081-170-0103)

หยดงาน

(Stop work)

อพยพไปจดรวมพล(Evacuate to Assembly Point)

ผควบคมงานตรวจสอบรายชอ(Foreman a roll Call All Worker)

คนหา

รอรบฟงค าสง(Stanby For Instruction)

กลบสสภาวะปกตเขาปฎบตงาน

(All Clare)

โรงพยาบาล

(Hospital)สถานต ารวจ

(Pollice Station)

สถานดบเพลง

(Fire Station)

APPENDIX XI

Emission Rate Calculation Nong-Saeng Power Plant Project

III-1

Emission Rate Calculation Nong-Saeng Power Plant Project

The electricity generating process of Nong-Saeng Power Plant Project will emit three (3) primary air pollutants (i.e. oxides of nitrogen [NOx], sulfur dioxide [SO2] and particulate matters [PM]) through four (4) HRSG stacks. The air emission rates of Nong-Saeng Power Plant are summarized as follows:

(1) Oxides of nitrogen (NOx): under normal fuel combustion condition,

oxides of nitrogen will be formed by the reaction between nitrogen in the air and

oxygen at about 1,200 degrees Celsius. Therefore the project has selected to use the

dry low NOx combustion system designed with a lower operating combustion

temperature to reduce NOx emissions. The project is now under the process of

selecting the required gas turbines for which the bidders must propose the associated

NOx emissions of 70 ppm and 120 ppm at 7% excess O2 when using natural gas and

diesel oil as fuels respectively.

(2) Sulfur dioxide (SO2): the air pollutant that is formed by the

combustion of sulfur containing fuels, particularly coal and oil. However, the project

has proposed to use natural gas as the main fuel for electricity generating. The natural

gas to be obtained from PTT is required to have low sulfur content i.e. with hydrogen

sulfide content of 50 parts per million (ppm). When combusted, the required

hydrogen sulfide content in natural gas is estimated to form about 3 ppmvd of SO2

emission at 7% excess O2. As a safety factor, the project has proposed the SO2

emissions of 10 ppmvd at 7% excess O2 in case there is a fluctuation in the property

of the supplied natural gas and 30 ppmvd at 7% excess O2 when firing diesel oil. The

proposed SO2 emissions are still lower than Thailand’s Standards (not to exceed 20

ppm and 320 ppm at 7% excess O2respectively).

(3) Particulate matters (PM): PM is formed by the combustion of fuel. In most cases, PM is from the input air to the combustion process of gas turbines. The use of new and clean air filters can substantially reduce PM emissions but not all of the PM under actual conditions. Normally, PM emission rates also vary according to ambient dust concentrations in the area. However, the project has proposed to use a double-layered filtering system to filter the input air before it is fed into the

III-1

combustion system. Therefore the project has set the PM control values of 20

mg/Nm3 and 35 mg/Nm3 @ 7% excess O2 when using natural gas and diesel oil as

fuels respectively. These proposed control values are lower than Thailand’s Standards

(not to exceed 60 and 120 mg/Nm3 @ 7% excess O2 respectively).

The details of emission rate calculation method are as follows:

(1) Full Load Operation (100% Load) - Natural Gas Firing

The designed stack gas flow rate is 697.06 Nm3/sec @ 15% excess O2

or = 697.06 (20.9-15) @ 7% excess O2

(20.9-7) = 295.8 Nm3/sec @ 7% excess O2

Oxides of Nitrogen The required concentration of oxides of nitrogen is 70 ppm @ 7%

excess O2

Hence the emission rate of oxides of nitrogen is equal to = 70 x 46 x 295.8

24.45 x 1,000

= 38.93 g/s

Therefore the emission rate of oxides of nitrogen is 38.93 g/s/stack

Sulfur Dioxide

The required concentration of sulfur dioxide is 10 ppm @ 7% excess O2

Hence the emission rate of sulfur dioxide is equal to = 10 x 46 x 295.8

24.45 x 1,000 = 7.74 g/s

Therefore the emission rate of sulfur dioxide is 7.74 g/s/stack

Particulate Matters (PM)

The required concentration of PM is 20 mg/Nm3 @ 7% excess O2

Hence the PM emission rate is equal to

= 20 x 295.8

1,000 = 5.92 g/s

Therefore the PM emission rate is 5.92 g/s/stack

III-2

- Diesel Oil Firing The designed stack gas flow rate is 672.29 Nm3/sec @ 15% excess O2

or = 672.29 (20.9-15) @ 7% excess O2

(20.9-7) = 285.36 Nm3/sec @ 7% excess O2


excess O2


24.45 x 1,000

= 64.37g/s


Sulfur Dioxide



24.45 x 1,000 = 22.41 g/s





= 35 x 285.36

1,000

= 9.99 g/s Therefore the PM emission rate is 9.99 g/s/stack

(2) 80% Load Operation

- Natural Gas Firing The designed stack gas flow rate is 570.62 Nm3/sec @ 15% excess O2

or = 570.62 (20.9-15) @ 7% excess O2

(20.9-7)

III-3

= 242.2 Nm3/sec @ 7% excess O2


excess O2 Hence the emission rate of oxides of nitrogen is equal to

= 70 x 46 x 242.2

24.45 x 1,000 = 31.87 g/s


Sulfur Dioxide



24.45 x 1,000

= 6.34 g/s Therefore the emission rate of sulfur dioxide is 6.34 g/s/stack




= 20 x 242.2

1,000



or = 563.39 (20.9-15) @ 7% excess O2

(20.9-7) = 239.1 Nm3/sec @ 7% excess O2


excess O2 Hence the emission rate of oxides of nitrogen is equal to

= 120 x 46 x 239.1

24.45 x 1,000

III-4

= 53.94 g/s Therefore the emission rate of oxides of nitrogen is 53.94 g/s/stack

Sulfur Dioxide



24.45 x 1,000 = 18.78 g/s





= 35 x 239.1

1,000 = 8.37 g/s

Therefore the PM emission rate is 8.37 g/s/stack (3) 58% Load Operation

- Natural Gas Firing The designed stack gas flow rate is 442.84 Nm3/sec @ 15% excess O2

or = 442.84 (20.9-15) @ 7% excess O2

(20.9-7) = 187.9 Nm3/sec @ 7% excess O2


excess O2


24.45 x 1,000

= 24.74 g/s


Sulfur Dioxide


III-5


24.45 x 1,000 = 4.92 g/s





= 20 x 187.9

1,000



or = 491.0 (20.9-15) @ 7% excess O2

(20.9-7) = 208.4 Nm3/sec @ 7% excess O2

Oxides of Nitrogen

The required concentration of oxides of nitrogen is 120 ppm @ 7% excess O2


24.45 x 1,000

= 47.01 g/s Therefore the emission rate of oxides of nitrogen is 47.01 g/s/stack

Sulfur Dioxide



24.45 x 1,000

= 16.36 g/s


III-6

Particulate Matters (PM) The required concentration of PM is 35 mg/Nm3 @ 7% excess O2


= 35 x 208.4

1,000 = 7.29 g/s

Therefore the PM emission rate is 7.29 g/s/stack

III-7

APPENDIX XII

EXECUTIVE SUMMARY NATURAL GAS PIPELINE TO NONG SAENG POWER PLANT

PROJECT

Natural Gas Pipeline to Nong Saeng Power Plant Project Gulf JP NS Co., Ltd. Executive Summary

ENTIC Co., Ltd. 1

ENVIRONMENTAL IMPACT ASSESSMENT

NATURAL GAS PIPELINE TO NONG SAENG POWER PLANT PROJECT

GULF JP NS CO., LTD.

The Gulf JP NS Co., Ltd., has a project to construct Nong Saeng Power Plant (NSPP),

which is a combined cycle power plant (CCPP). The project is for supporting the present increase of

electricity demand and reinforcing the country energy security. The NSPP has capacity of 1,653 MW

and uses natural gas as a main fuel. Thus the company has a plan to lay natural gas pipeline (NGP) to

the NSPP with a diameter of 30 inches. The NGP will be joined to the 36-inch Wang Noi-Khang Khoi

NGP system of the Petroleum Authority of Thailand Public Company Limited (PTT) at the area of

KP11+255 of the existing NGP in Kum Hak Subdistrict (Tambol) of Nong Khae District in Saraburi. The

project NGP will be ended at the metering and regulating station (MRS) of the NSPP. Total length of

the project NGP is 19.3 kilometers coverings areas in 7 subdistricts, 3 municipalities in 2 Districts of

Saraburi. The areas crossed by the NGP include Kum Hak Subdistrict, Phai Tam Tambol Municipality

(TM), Nong Khae TM, Nong Khai Nam Subdistrict, Nong Pla Mo Subdistrict, Nong Pling Subdistrict,

Khotchasit Subdistrict, Khotchasit TM and Khok Tum Subdistrict in Nong Khae District and Nong Kop in

Nong Saeng District of Saraburi.

The Gulf JP NS Co., Ltd., has assigned the Entic Co., Ltd., to conduct a study and

prepare environmental impact assessment (EIA) report of the project. Because the project nature is

corresponding to type and size of the projects enforced by Enhancement and Conservation of National

Environmental Quality, B.E. 2535 to perform EIA and present to the relevant approval office. EIA

conduction is also corresponding to the condition in the proposal for independent power producer

(IPP) selection by Ministry of Energy. The Gulf JP NS Co., Ltd., is responsible from the study through

preparation of EIA report for approval, construction of the project NGP, practice along measures for

prevention and mitigation of environmental impacts in both construction and operation periods. In the

case that the Gulf JP NS Co., Ltd., transfers the NGP system to PTT after construction completion,

PTT will work along the environment working plan in the operation period after PTT get the right of

the NGP system.


ENTIC Co., Ltd. 2

1. Type and size of the project

The Natural Gas Pipeline to Nong Saeng Power Plant Project of Gulf JP NS Co., Ltd., employs pipeline with a diameter of 30 inches. It is connected to the 36-inch Wang Noi-Khang Khoi NGP system of PTT and ends at Nong Saeng Power Plant in Nong Saeng District of Saraburi. It is the project of petroleum transportation by pipeline. According to the Enhancement and Conservation of National Environmental Quality, B.E. 2535 and the attachment of the Notification of Natural Resources and Environment Ministry, B.E. 2552, this project is the Project No. 3 “Projects to transport the Petroleum and Fuel Oil by Pipe”. All sizes of this project type are required to conduct EIA and prepare a report for submission in the step of licensing application or in the step of approval from relevant offices. Thus the Gulf JP NS Co. Ltd., has assigned the Entic Co., Ltd., to prepare the EIA report for submission to the Office of Natural Resources and Environmental Policy and Planning (ONEP) and authorized approval offices to approve the project before construction.

2. Project location

The Natural Gas Pipeline to Nong Saeng Power Plant Project of Gulf JP NS Co., Ltd., locates on 2 areas of Nong Khae and Nong Saeng Districts of Saraburi as shown in Fig. 2-1.

3. Project operation method

3.1 NGP route selection

Criteria for NGP route selection are considered from;

(1) Avoid crossing community area/place as much as possible

(2) Use governmental areas mainly in order to reduce impact on people areas

(3) Avoid historical area or areas with archeological places or antiques

(4) Avoid conservation areas according to laws or cabinet approval, for example, preserved forest, watershed classification area, etc.

(5) Be crossing river, canal, highway and local road as small number as possible

(6) Be able to extend the NGP system to customers easily

(7) Have shortest distance and engineering feasible

(8) Be able to access the area conveniently and quickly

ENTIC Co., Ltd. 3


Fig. 2-1 Location of the Natural Gas Pipeline to Nong Saeng Power Plant Project


ENTIC Co., Ltd. 4

Consideration of the areas to be the project’s NGP route by reviewing of secondary data

and field surveying, it is found that the Wang Noi-Khang Khoi NGP (the main NGP) has potential to

deliver enough natural gas to Nong Saeng Power Plant. There are 2 choices of routes, which are

suitable and corresponding to route selection criteria, as shown in Fig. 3.1-1.

(1) Route choice 1: This NGP route is divided into 2 sections;

Section 1: The project starting point-Liap Klong Rapeepat Road

The project NGP with a diameter of 30 inches is tied in with the 36-inch

Wang Noi-Kang Khoi NGP system of PTT at KP 11+255 of the Wang Noi-Kang Khoi NGP system.

The pipe joining point is the right of way (ROW) of high voltage transmission line. The pipeline is then

laid in the ROW of Kum Hak TAO Road until it reaches the intersection of Liap Klong Soi 9 Kwa Road.

The pipeline is bended to the east ROW of Liap Klong Soi 9 Kwa Road until it reaches Highway No. 1-

new route (Paholyothin Road). The pipeline is then crossed under Highway No. 1-new route to the

opposite side, which is in front of tyre manufacturing plant of Thai Bridgestone Co., Ltd. The pipeline is

laid along the west ROW of Highway No. 1-new route (outbound from Bangkok to Saraburi) until it

reaches the junction of Highway No. 1-old route and –new route. In this area, the pipeline is crossed

under Highway No. 1-old route and laid in the east of Highway No. 1-old route. When it reaches the

area in front of Wat Sahamitr Mongkol, it is crossed under Highway No. 1-old route and Klong

Rapeepat. The pipeline is laid in the ROW of East Liap Klong Rapeepat Road (on the left side of

Klong Rapeepat) because there are 2 natural gas pipelines of PTT in the West Liap Klong

Rapeepat Road whose ROW has no enough space for laying another pipeline. The total length of

this section is 4.6 kilometers.

Section 2: Liap Klong Rapeepat Road-the project end point

The whole pipeline in this section is laid in the ROW of Liap Klong Rapeepat

Road. When the Section 1 pipeline reaches the ROW of the East Liap Klong Rapeepat Road, its

extension is laid along this road until it reaches the metering and regulating station (MRS) in the

area of Nong Saeng Power Plant. Total length of NGP in this section is 14.7 kilometers.

ENTIC Co., Ltd. 5


Fig 3.1-1 Choices for NGP routes of the Natural Gas Pipeline to Nong Saeng

Power Plant Project


ENTIC Co., Ltd. 6

(2) Route choice 2: In this choice the whole pipeline is laid in the ROW of Liap Klong Rapeepat Road. It starts from the area of the gas control station WK#1 of the Wang Noi-Khang Khoi NGP. This station is located next to the East Liap Klong Rapeepat Road. The pipeline is laid in the ROW of the East Liap Klong Rapeepat Road (on the left side of Klong Rapeepat). It is then crossed under Highway No. 1-new route and –old route. The first part of the route choice 2 is 4.9 kilometer long. The second part of this route choice is the same as the section 2 of the route choice 1. In this part, the pipeline is laid in the ROW of the East Liap Klong Rapeepat Road for 14.7 kilometers until it reaches the MRS of Nong Saeng Power Plant. Environment conditions in 500-meter peripheries from the axis of NGP route choices are shown in Table 3.1-1

Table 3.1-1 Summary of general data of the route choices in 500-meter peripheries from the NGP route

Natural Gas Pipeline to Nong Saeng Power Plant Factor Route choice 1 Route choice 2

1. Construction Most areas can be excavated by Open Cut. Special construction techniques are needed to cross 7 obstructions, such as: 1. Highway No. 1 (Paholyothin

Road)-new route 2. Highway No. 1 (Paholyothin

Road)-old route 3. Liap Klong Rapeepat Road 4. Klong Rapeepat Road 5. Klong Baan Khok 6. Highway No. 33 7. Klong Huayba

Most areas can be excavated by Open Cut. Special construction techniques are needed to cross 14 obstructions, such as: 1. Liap Klong Rapeepat Road 2. Klong Rapeepat 3. Klong Nong Khae 4. Setha Samphan Road 5. Setha Bamroong Road 6. Tesabaan 5 Road 7. Nong Khae District Office 8. Nong Khae Police Station 9. Sophon Thamma Pracha Road 10. Highway No. 1-new route 11. Highway No. 1-old route 12. Klong Baan Khok 13. Highway No. 33 14. Klong Huayba

2. Approximated length

About 19.3 kilometers About 19.6 Kilometers

3. Number of community areas crossed by NGP route

Crossing the community area of Khotchasit TM

15.Crossing Nong Khae District Office, Nong Khae Police Station, Community in Nong Khae TM, fresh-food market and community area of Khotchasit


ENTIC Co., Ltd. 7

Table 3.1-1 (continued) Factor Route choice 1 Route choice 2

4. Maximum usage of governmental areas

Most areas along the NGP route belong to governmental sectors and local organizations, such as Department of Highways (DOH), Royal Irrigation Department (RID) and TAO

All the areas along the NGP route belong to the governmental sector, namely RID.

5. Number of water source crossing

Crossing 3 water sources, such as Klong Rapeepat, Klong Baan Khok and Klong Huayba

Crossing 4 water sources, such as Klong Rapeepat, Klong Nong Khae, Klong Baan Khok and Klong Huayba

6. Number of highway or local road crossing

Crossing 11 highways or local roads; 1. Highway No. 1 (Paholyothin Road)-

new route 2. Highway No. 1 (Paholyothin Road)-

old route, crossing twice 3. Gateway to Wat Rat Satthatham 4. Liap Klong Rapeepat Road 5. Gateway to SIL Industrial Estate 6. Gateway to Wat Thung Din Kho 7. Gateway to Baan Kratong Loy

Group 4, KP 11+877 8. Gateway to Baan Kratong Loy

Group 4, KP 12+000 9. Highway No. 33 10. Gateway to Khotchasit TM

community in the Akathosarot Watergate office area

11. Liap Klong Huayba Road

Crossing 15 highways or local roads; 1. Sophon Thamma Pracha Road 2. Tesabaan 5 Road 3. Gateway to Baan Hua Sakhae 4. Setha Samphan Road 5. Setha Bamroong Road 6. Junction of Liap Klong Rapeepat Road

with Tesabaan 1 Road 7. Junction of Highway No. 1 (Paholyothin

Road)-new route with Klong Rapeepat Embankment Road

8. Liap Klong Rapeepat Road 9. Gateway to SIL Industrial Estate 10. Gateway to Wat Thung Din Kho 11. Gateway to Baan Kratong Loy Group 4,

KP 11+877 12. Gateway to Baan Kratong Loy Group 4,

KP 12+000 13. Highway No. 33 14. Gateway to Khotchasit TM community in

the Akathosarot Watergate office area 15. Liap Klong Huayba Road

7. Sensitive areas to impacts in 500-meter peripheries from the NGP axis

21 places, such as; 1. Wat Suan Kluay 2. War Suan Kluay School 3. Sahamitr Mongkol School 4. Wat Sahamitr Mongkol 5. Nong Khae Provincial Water Works

Authority (PWA) 6. Luang Por Samrej Saksit

29 places, such as; 1. Wat Sena Naruemitr School 2. Wat Sena Naruemitr 3. Wang Noi Power Plant water pump

station 4. Tesabaan 4 Sena Anusorn School 5. Klan Wittaya School 6. Rim Klong Rapeepat Market


ENTIC Co., Ltd. 8

Table 3.1-1 (continued) Factor Route choice 1 Route choice 2

7. Sensitive areas to impacts in 500-meter peripheries from the NGP axis (continued)

7. Wat Chaiyasit Anusorn 8. Wat Chaiyasit Anusorn School 9. Wat Kratong Loy 10. Khotchasit Community Tesabaan

Market 11. Rapeepat Ruamjai Community 12. Khotchasit TM Office 13. Wat Santi Wihan 14. Khok Tum TAO Office 15. Wat Santi Wihan School 16. Khok Tum Subdistrict Public Health

Station 17. Wat Khok Daeng 18. Wat Thammasin Sopha School 19. Wat Thammasin Sopha 20. Nong Kop Subdistrict Public Health

Station 21. Royal Irrigation Office

7. Nong Khae District Police Station 8. Nong Khae TM 9. Nong Khae Governmental Office 10. Construction project of Royal Irrigation

Office 2 11. Sahamitr Mongkol School 12. Wat Sahamitr Mongkol 13. Nong Khae Provincial Water Works

Authority (PWA) 14. Luang Por Samrej Saksit 15. Wat Chaiyasit Anusorn 16. Wat Chaiyasit Anusorn School 17. Wat Kratong Loy 18. Khotchasit Community Tesabaan

Market 19. Rapeepat Ruamjai Community 20. Khotchasit TM Office 21. Wat Santi Wihan 22. Khok Tum TAO Office 23. Wat Santi Wihan School 24. Khok Tum Subdistrict Public Health

Station 25. Wat Khok Daeng 26. Wat Thammasin Sopha School 27. Wat Thammasin Sopha 28. Nong Kop Subdistrict Public Health

Station 29. Royal Irrigation Office


ENTIC Co., Ltd. 9

3.2 NGP route section result

By comparison of impacts to be occurred in 2 route choices and by giving scores to

each route choice as shown in Table 3.2-1, it is found that the route choice 1 has total suitability

scores higher than that of the route choice 2. The route choice 1 not only has higher suitability

scores but it also causes less number of impacts as it crosses less amounts of road, water source

and sensitive area. Thus, it is suitable to be the route for laying NGP of the Natural Gas Pipeline to

Nong Saeng Power Plant Project.

3.3 The project NGP route

The project NGP is planned to be laid in the north ROW of RID Road to the junction

with Liap Kong Soi 9 Kwa Road. After that the pipeline is laid in the ROW of Liap Kong Soi 9 Kwa

Road until it reaches the junction between Liap Kong Soi 9 Kwa Road and Highway No. 1

(Paholyothin Road). The pipeline is then laid in the ROW of Highway No. 1 and crossed under to

the opposite side in the area in front of the plant of Thai Bridgestone Co., Ltd., which is located at

the Km. 81+740 of Highway No.1 (outbound from Bangkok-Saraburi). Then the pipeline is laid in

the ROW of Highway No.1 (outbound from Bangkok-Saraburi) until it reaches the junction between

Highway No. 1-old route and –new route. The pipeline is bended along the ROW of Highway No.

1-old route before being crossed under to the east ROW of the road. When the pipeline reaches

the junction between Highway No. 1-old route and Klong Rapeepat (the area in front of Wat

Sahamitr Mongkol) it is crossed under Highway No. 1-old route, Klong Rapeepat and Liap Klong

Rapeepat Roads (referred to the direction heading to Nong Saeng Power Plant). The pipeline is laid

in the ROW of Liap Klong Rapeepat Road on the canal left side (because there are 2 pipelines of

PTT and no enough space in the ROW of Liap Klong Rapeepat Road on the canal right side). The

pipeline is laid in the east ROW of Liap Klong Rapeepat Road on the canal left side until it reaches the

MRS of Nong Saeng Power Plant. Total project NGP is about 19.3 kilometers as shown in Fig. 3.3-1.

The studied area covers the peripheries of 500 meter from the pipeline axis. The area crosses 7

subdistricts, 3 municipalities in 2 districts of Saraburi as shown in Table 3.3-1.

ENTIC Co, Ltd.

10

Natural Gas Pipeline to Nong Saeng Power Plant Project

Gulf JP NS Co., Ltd. Executive Summary

Table 3.2-1 Consideration on weight and prioritization for route selection of Natural Gas Pipeline to Nong Saeng Power Plant

Criteria Priority

weight

Route 1 Suitability

level Score

Route 2 Suitability

level Score

Details Details

1. Engineering

1.1 Construction technique

2 Most areas can use Open Cut method, except the areas with big barriers and/or requiring impact reduction employ special construction techniques, such as HDD and Boring. Special areas include 7 places; 1. HW#1 (new route) using Boring and HDD 2. HW#1 (old route), crossing twice, using Boring 3. Liap Klong Rapeepat Road and Klong

Rapeepat using HDD 4. Crossing Khotchasit Community using HDD 5. Klong Baan Khok using HDD 6. HW# 33 using HDD 7. Klong Huayba and Liap Klong Huayba

Road using HDD

2 4 Most areas can use Open Cut method, except the areas with big barriers and/or requiring impact reduction employ special techniques. Special areas include 7 places; 1. Liap Klong Rapeepat Road and

Klong Rapeepat using HDD 2. Klong Nong Khae using Boring 3. Setthasamphan Road using Boring 4. Setthabamroong Raid using Boring 5. Tesabaan 5 Road using Boring 6. Nong Khae District Office using

HDD 7. Nong Khae Police Station using

HDD 8. Sophon Thammapracha Road using Boring 9. HW#1-new route using HDD 10. HW#1-old route using HDD

1 2

ENTIC Co, Ltd.

11



Table 3.2-1 (continued)

Criteria Priority

weight

Route 1 Suitability

level Score

Route 2 Suitability

level Score

Details Details

11. Khotchasit Community using HDD 12. Klong Baan Khok using HDD 13. HW# 33 using HDD 14. Klong Huayba and Liap Klong

Huayba using HDD

2. Economy or investment 2.1 Pipeline

length 2 about 19.3 km. 3 6 about 19 .6 km. 3 6

3. Economy-society 3.1 Crossed Communities number

3 1. Community areas in Khotchasit Subdistrict 2 6 1. Communities in Nong Khae TM and fresh food market area

2. Community areas in Khotchasit Subdistrict

1 3

3.2 ROW usage

3 Use most areas belonging to government and local administration organizations

2 6 Use all areas belonging to government 3 9

4. Environment 4.1 Crossing

point number withhighways olocal roads

3 Crossing 3 water sources including 1. Klong Rapeepat 2. Klong Baan Khok 3. Klong Huayba

3

9

Crossing 3 water sources including 1. Klong Nong Khae 2. Klong Rapeepat 3. Klong Baan Khok 4. Klong Huayba

2 6

ENTIC Co, Ltd.

12




Criteria Priority

weight

Route 1 Suitability

level Score

Route 2 Suitability

level Score

Details Details

4.2 Crossing point number with highways or local roads

2 Crossing 11 highways/local roads/gateways including 1. HW#1 (Paholyothin Road) new route 2. HW#1 (Paholyothin Road) old route

crossing twice 3. Gateway to Wat Rat Satthatham 4. Liap Klong Rapeepat Road 5. Gateway to SIL industrial estate 6. Gateway to Wat Toongdinkhaw 7. Gateway to Baan Kratong Loy, Group 4,

KP 11+877 8. Gateway to Baan Kratong Loy, Group 4,

KP 12+000 9. HW#33 10. Gateway to Kotchasit Municipality

Community near Akathosarot Watergate 11. Liap Klong Huayba Road

2 4 Crossing 15 highways/local roads/gateways including 1. Thammasophon Pracha Road 2. Tesabaan 5 Road 3. Gateway to Baan Hua Sakhae 4. Setthasamphan Road 5. Setthabamroong Road 6. Junction of Liap Klong Rapeepat Road

and Tesabaan 1 Road 7. HW#1 (Paholyothin Road)-new route

crossing with Klong Rapeepat Dike Road

8. Liap Klong Rapeepat Road 9. Gateway to SIL industrial estate 10. Gateway to Wat Toongdinkhaw 11. Gateway to Baan Kratong Loy, Group

4, KP 11+877 12. Gateway to Baan Kratong Loy, Group

4, KP 12+000 13. HW#33 14. Gateway to Kotchasit Municipality

Community near Akathosarot Watergate

15. Liap Klong Huayba Road

1 2

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Criteria Priority

weight

Route 1 Suitability

level Score

Route 2 Suitability

level Score

Details Details

4.3 Impact sensitive areas

3 There are 21 areas including 1. Wat Suan Kluay 2. Wat Sahamitr Mongkol 3. Sahamitr Mongkol School 4. Luang Por Samrej Saksit 5. Nong Khae PWA office 6. Wat Suan Kluay School 7. Wat Chaiyasit Anusorn 8. Wat Chaiyasit Anusorn School 9. Wat Kratong Loy 10. Tesabaan Market of Kotchasit Community 11. Rapeepat Ruamjai Community 12. Khok Tum Public Health Center 13. Wat Santi Wihan 14. Wat Santi Wihan School 15. Wat Khok Daeng 16. Khok Tum TAO 17. Wat Thammasin Sopha 18. Wat Thammasin Sopha School

2 6 There are 21 areas including 1. Wat Sahamitr Mongkol 2. Wat Sena Naruemitr 3. Wat Sena Naruemitr School 4. Klan Wittaya School 5. Tesabaan 4 Sena Anusorn School 6. Sahamitr Mongkol School 7. Luang Por Samrej Saksit 8. Nong Khae Governmental Office Center 9. Rim Klong Rapeepat Market 10. Nong Khae District Police Station 11. Construction Project of RID Office 12. Nong Khae TM Office 13. Wang Noi Power Pant’s Water Pump Station 14. Nong Khae PWA Office 15. Wat Chaiyasit Anusorn 16. Wat Chaiyasit Anusorn School 17. Wat Kratong Loy 18. Tesabaan Market of Kotchasit Community

1

3

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Criteria Priority

weight

Route 1 Suitability

level Score

Route 2 Suitability

level Score

Details Detials 19. Nong Kop Public Health Center

20. Kotchasit TM Office 21. RID Office

19. Rapeepat Ruamjai Community 20. Khok Tum Public Health Center 21. Wat Santi Wihan 22. Wat Santi Wihan School 23. Wat Khok Daeng 24. Khok Tum TAO 25. Wat Thammasin Sopha 26. Wat Thammasin Sopha School 27. Nong Kop Public Health Center 28. Kotchasit TM Office 29. RID Office

5. Safety 5.1 Emergency Area access convenience

3 There are roads for access the whole NGP route conveniently.

2 6 There are roads for access the whole NGP route conveniently.

2 6

Total score of Route 1 47 Total score of Route 2 37 Note: Priority from low to high, divided into 3 levels as flows;

1. Low priority weight equals to 1 1. Low suitability equals to 1 2. Medium priority weight equals to 2 2. Medium suitability equals to 2 3. High priority weight equals to 3 3. High suitability equals to 3

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Fig. 3.3-1 The studied area of the NGP route with peripheries on both sides of

500 meters from the NGP axis


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Table 3.3-1 Summary of construction methods for NGP of Natural Gas Pipeline to Nong Saeng Power

Plant Project

KP Length (meter)

Construction method

ROW usage Area

owner Note

Section 1 KP 0+000 to KP 1+363 0+000

- Hot Tap High voltage transmission line system zone

Electricity Generation Authority of Thailand (EGAT)

The project 30-inch NGP is joined to 36-inch Wang Noi-Khang Khoi NGP (main pipeline)

0+000-0+075 75 Open Cut High voltage transmission line system zone

EGAT -

0+075 - 0+260

185 Open Cut ROW of RID Road, laid at 0.9 meter from shoulder and 1.5 meter deep

RID -

0+260 - 1+363

1,103 Open Cut ROW of Liap Klong 9 Kwa Road, High voltage transmission line system zone

RID -

Section 2 KP 1+363 to KP 3+652 1+363 - 1+462

99 Open Cut ROW of Highway No. 1-new route, laid at 3.7 meter from shoulder and 1.5 meter deep

DOH Parallel to 24-inch Bang Plee-Saraburi NGP with 1.2 meter apart

1+462 – 1+527

65 Boring ROW of Highway No. 1-new route

DOH Crossing under Highway No. 1-new route with minimum 3.50 meter deep

1+527 - 3+652

2,125 HDD ROW of Highway No. 1-new route, laid at 3.7 meter from shoulder and 1.0 meter deep

DOH -

Section 3 KP 3+652 to KP 4+651 3+652 - 3+692

40 Boring ROW of Highway No. 1-old route

DOH Crossing under Highway No. 1-old route with minimum 3.50 meter deep


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KP Length (meter)

Construction method

ROW usage Area

owner Note

3+692 - 4+651

959 Open Cut ROW of Highway No. 1-old route, laid at 1.4 meter from shoulder with 1.5 meter deep

DOH -

Section 4 KP 4+651 to KP 18+992 4+651 - 5+723

1,072 HDD Klong Rapeepat RID Crossing under Klong Rapeepat with minimum 30 meter deep

5+723 - 6+613

890 Open Cut Liap Klong Rapeepat Road on the canal left side, 14 meter from shoulder and 1.5 meter deep

RID Parallel to existing 12-inch NGP to SIL Industrial Estate (Saraburi)

6+613 - 7+175

562 HDD Liap Klong Rapeepat Road on the canal left side

RID Crossing under the gateway to SIL Industrial Estate (Saraburi) and community streets

7+175 - 10+575

3,400 Open Cut Liap Klong Rapeepat Road on the canal left side, 14 meter from shoulder and 1.5 meter deep

RID -

10+575 -11+300


RID Crossing under community areas and streets and Klong Baan Khok at KP 10+900

11+300 -13+300

2,000 Open Cut Liap Klong Rapeepat Road on the canal left side, 14 meter from shoulder and 1.5 meter deep

RID -

13+300 -14+225


RID Crossing under Khotchasit community and public drainage canal


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KP Length (meter)

Construction method

ROW usage Area owner Note

14+225 -16+240

2,015 Open Cut Liap Klong Rapeepat Road

on the canal left side, 14

meter from shoulder and

1.5 meter deep

RID -

16+240 -6+807

567 HDD Liap Klong Rapeepat Road


meter from shoulder

RID Crossing under

community areas and

Highway No. 33

16+807 -8+310

1,503 Open Cut Liap Klong Rapeepat Road



1.5 meter deep

RID -

18+310 -8+880

570 HDD Liap Klong Rapeepat Road


meter from shoulder

RID Crossing under Klong

Huayba at KP

18+600

18+880 -18+992

112 Open Cut Liap Klong Rapeepat Road



1.5 meter deep

RID -

Section 5 KP 18+992 to KP 19+263

18+992 -

19+263

271 Open Cut Area of Nong Saeng

Power Plant, 1.5 meter

deep

Gulf JP NS

Co., Ltd.

-

Total 19,263 Open Cut = 12,612 m.

meters Boring = 105 m.

HDD = 6,546 m.


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For the project standard design of NGP, the pipe is made of steel API 5L X 65 with a diameter of 30 inches and a thickness of 0.50 inches. The design follows the standard ASME B31.8 (American Society of Mechanical Engineering, Gas Transmission and Distribution Piping Systems) with standard pipe of API 5L Grade B, maximum design pressure of 1,083 psig, operating pressure of about 600 psig. The class location identification is Location Class 3 having a design factor of 0.5.

3.4 NGP construction

The pipeline laying of the Natural Gas Pipeline to Nong Saeng Power Plant project employs 3 methods, such as Open Cut, Boring Method and Horizontal Directional Drilled Crossing (HDD) as shown in Fig. 3.4-1 and referred to Table 3.3-1.

3.5 Pipeline leak test by hydrostatic test

After pipe welding and pipeline lowering on to the right position, the pipeline leak is tested by using pressurized water with a single pressure range for the whole tested pipeline length. The pipeline ends are sealed. Near the pipeline ends, watergates are installed. One pipeline end is connected with water pump equipped with a pressure gauge for showing a pressure inside the pipeline. When the pipeline is full, the internal pressure is slowly increased in order that the pipeline can expand and move due to pressure increase. When the pressure is 1.5 times of the maximum design pressure, it will be kept for 24 hours continuously. Temperature and pressure are recorded for the whole testing period. If no pressure drop or very small drop within the requirement and no leaks on the surface or weld of the pipeline are observed, the test is finished. The water is then released from the pipeline, which is dried by using hot air with a volume of 3 times larger than the pipeline volume. Before start delivering natural gas, pure nitrogen is used to purge air out of the pipeline.

For the water for hydrostatic test, subcontractor will prepare for enough quantity without disturbing community water sources. During testing, no chemicals are added to the water. It is expected to use 8,781 cubic meters of water. After finishing the test, the pressure is reduced and rate of released water is controlled to be slow. Quality of released water is analyzed. The quality parameters include acidity-alkalinity (pH), total dispersion solid (TDS), suspension solid (SS) and temperature. The analysis is for making sure that water released from the hydrostatic test has properties in accordance with waste water standard of relevant offices. The water is collected and released to Nong Saeng Power Plant’s rain water pond with capacity of 29,000 cubic meters. Since the pipeline construction will be in the same period of power plant construction so no water will be released to public water sources.

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Fig. 3.4-1 Flowchart of NGP laying of Natural Gas Pipeline to Nong Saeng

Power Plant


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3.6 Pipeline marker posting

When pipeline laying and area recovery are finished, the project is planned to post pipeline markers at every 100 meter. However, the distance between the markers are adjusted when the pipeline is crossing communities or roads. The markers indicate the clear pipeline position. It also warns of dangers that may occur to the NGP. On the markers, the name of Gulf JP NS Co., Ltd., emergency call number and warning message to prevent digging, hammering and drilling in the area.

4. NGP construction plan

For the project NGP construction, it is estimated to take 14 months. Constructions by using Open Cut in general area can be done by 100-200 meters per section and using HDD by 1000 meters per section. Total length of the pipeline is 19.3 kilometers. The construction will begin after the EIA report is approved by ONEP. Preliminarily, the project plans to begin construction in the 4th quarter of B.E. 2553.

5. Environmental impact, measure for prevention and mitigation of environmental impact and measure for environmental quality monitoring

Summary of environmental impact, measure for prevention and mitigation of environmental impact and measure for environmental quality monitoring in the construction and operation periods of Natural Gas Pipeline to Nong Saeng Power Plant Project of Gulf JP NS Co., Ltd., is shown in the table of report on important environmental impacts in construction and operation periods (Table 5-1 and Table 5-2).

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Gulf JP NS Co., Ltd. Executive Summary Table 5-1

Report on important environmental impacts Measure for prevention and mitigation of environmental impacts and measure for monitoring of environmental impacts in the construction period

Natural Gas Pipeline to Nong Saeng Power Plant Environmental factors

and values Important environmental impact Measure for prevention and mitigation of environmental impact

Measure for monitoring of environmental impacts

1. Air quality By measuring of total

suspension particles (TSP) in the atmosphere, averaged for 24 hour, in the studied areas including Wat Sahamitr Mongkol, Wat Chaiyasit Anusorn, Kotchasit TM Office and Wat Thamasinsopa, during 16-19 December B.E. 2553 prior to the project construction, it was found that dust concentrations were 141-155, 93-130, 117-147 and 78-95

g/m3, respectively. When compared to air quality standard value, it was found that the

Air quality impacts during the construction period include dust from construction materials transportation, area preparation, ground excavation, machinery running, etc. When the dust concentration in the atmosphere obtained from evaluation of impacts from construction activities during the construction period of the project with averaged concentration in 24 hours at

maximum of 174.96 g/m3, it was found that total dust in the atmosphere during the construction period of the project was in the standard requirements. In addition, from the evaluation of pollutants released from machinery and automobiles including NO2 and CO, it was found that their quantities were low and the standard requirements.

(1) Spraying of water on the construction areas with ground excavation twice a day and number of spraying is increased when more dusts are in the areas, particularly communities, schools and temples, etc.

(2) Trucks carrying construction materials need to be covered and materials need to be bound to prevent dust spreading and materials falling. In case of materials or soil lump dropping on road, cleaning needs to be done.

(3) Speed limit of trucks carrying construction materials is not over 30 km/hr for passing communities and construction area and not over 80 km/hr for passing general areas (requirement in the Land Traffic Act, B.E. 2522). Signs of speed limit have to be installed in construction area and gate way.

(4) Ground excavation along the route is not conducted at the same time. Ground surface opening for construction is done for each section and immediate backfilling after finishing construction.

(5) Positioning of receiving and drilling pits of boring and HDD has to be far from communities, schools, temples and governmental offices.

(6) Inspecting and checking of engines and machines used for construction and making them be in good conditions as stated in

Monitoring index - Averaged TSP for 24 hours - Particles smaller than 10 microns (PM-10), averaged for 24 hours

Monitoring station Areas close to the NGP route construction sites constructed by Open Cut including

- Communities around Khum Hak TAO Road

- Communities around Liap Klong Soi 9 Kwa Road

- Wat Sahamitr Mongkol at area of Highway No. 1

- Khotchasit TM Office at area of Liap Klong Rapeepat Road

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Gulf JP NS Co., Ltd. Executive Summary Table 5-1 (continued)

Environmental factors and values

Important environmental impact Measure for prevention and mitigation of environmental impact Measure for monitoring of

environmental impacts 1. Air quality (continued) measured values were in the limitation (not higher than 330

g/m3) given in the Notification of National Environment Board (NEB), No. 24 (B.E. 2547).

Notification of Interior Ministry, on Working Safety with Machinery, dated on 28 July B.E. 2519 and Notifications of Ministry of Science, Technology and Environment No. 2 (B.E. 2540) and No.4 (B.E. 2541) on Designation of standard value of exhaust from diesel engines for reduction of pollutants from engines released to atmosphere.

(7) Turning off the engines after working or parking. (8) Installing of plastic panels/canvas walls to reduce dust spreading

in communities with respect to regulations and rules for control of dust from construction activities given in the Notification of Pollution Control Department, Ministry of Natural Resources and Environments. In case that the plastic panels cannot be installed, water spraying or construction materials covering has to be done to reduce dust spreading.

Duration/frequency 1 time for 7 consecutive days in the period that construction is crossing the monitoring point. Measuring method

- TSP : Gravimetric Method - PM-10 : Gravimetric

Method (Size Selective Inlet)

or other methods assigned or approved by relevant governmental offices

2. Noise Results of noise

measurement in the studied area showed that values of level equivalent to 24 hours (Leq 24) of noise were in the range of 52.3 - 68.8 decibel A (dBA).

In the construction period, the project noises include noises of excavation machines and devices and noises of construction machines. Forecasting of noises from construction activities in sensitive areas within the peripheries of 500 meters from the NGP route indicates that the Leq 24 values were in the range of 56.7-69.0 dBA. When compared to the standard value (not

(1) For noisy construction activities, the project has to inform the construction plan to houses and accommodations along the NGP route and submit the letter to inform the construction plan to local administration organizations in the areas 1 month before construction.

(2) In the case that the construction is crossing accommodations, governmental offices, religious places and schools, it has to inform the construction plan with clear starting and finishing dates.

(3) For the noisy construction activities, they have to be conducted

Monitoring index - Leq 24 hours - Leq 1 hour - leq 5 minute - L90 - Lmax

Monitoring station - Areas close to the NGP route sites with 6 stations including;

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Table 5-1 (continued) Environmental

factors and values Important environmental impact Measure for prevention and mitigation of environmental impact


2. Noise (continued) The values were in the standard requirements (not higher than 70 dBA) given in the Notification of NEB No. 15 (B.E. 2540).

higher than 70 dBA) given in the Notification of NEB No. 15 (B.E. 2540), it was found that the noise level values were in the standard requirements. For disturbing noise evaluation by calculation of disturbing noise levels from the project construction activities in the sensitive areas, it was found that maximum disturbing noise was not higher than 9.7 dBA. This was in the standard value (not higher than 10 dBA) given in the Notification of NEB No. 15 (B.E. 2540).

during 08.00-18.00 o’clock if they are crossing communities. Working times are limited for 8 hours/day with respect to the Labour Protection Act, B.E. 2541. (4) It has to assign that the workers who are working in noisy areas

must have protection kits such as ear plugs and ear muffs with standard quality.

(5) Regular maintenance of construction tools and machines to be in good conditions and if loud noise occurs to any components they have to be improved immediately.

(6) Running of heavy machines with loud noise had to be finished quickly. Starting an engine only in working time and turning off immediately after work.

(7) Avoid accelerating the noisy engines. (8) Positioning of receiving and drilling pits for boring and HDD to be

far from people houses, religious places, schools and governmental offices.

(9) Installation a noise protection wall on the side next to a road and a community and on the back side of a HDD machine. The wall is made of light concrete with thickness of 4 inches and height of 2 meters. Width and length of the wall have to be adjusted to cover the drilling pit and the area for laying the construction machines in the drilling pit.

(10) During flushing of air by nitrogen, workers have to wear protection kits, such as ear plugs or ear muffs.

Community in the Khum Hak TAO Road area

Community in the Liap Klong Soi 9 kwa Road area

Wat Sahamitr Mongkol Khotchasit TM Office Nong Khae PWA Wat Suan Kluay - Measure the Lmax of N2

releasing during commissioning for 1 time

Duration/frequency - Measure Leq 24 hours and

L90 for 1 time with 5 consecutive days when the construction is in the monitoring station area

- Measure Lmax for 1 time during N2 releasing

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environmental impacts 2. Noise (continued)

Measuring method Calculation of noise level follows the Notification of NEB No. 15 (B.E. 2540) on Regulation of Ambient Noise Level Standard, the Notification of NEB No. 29 (B.E. 2550) on Disturbing Noise Level and the Notification of Pollution Control Board (B.E. 2550) on Measuring Method for Ambient Noise Level, Non-disturbed Noise Level, Measuring Method and Calculation of Disturbing Noise, Calculation of Disturbing Level and Recording of Disturbing Noise Measurement

3. Soil resource From literature review of secondary data of soil resource in the project studied area, it is found that there are 7 series including; Rangsit

Trenching and soil piling may cause mixing between soil layers. The construction may cause contamination of oil used in machines and engines. For the construction using Open Cut may cause soil erosion. By comparison between the evaluation of soil erosion in the project area with the soil erosion classification in

(1) Not open soil surface at the same time for the whole NGP route (2) Remove ground cover plants only in area to be opened (3) In excavation, it has to separate soil surface layer from a lower one

and in backfilling the lower soil layer was filled and followed by the soil surface layer in order to preserve organic substance in soil.

(4) In back filling, the excavated soil had to be spread over the pipeline route. To compensate a soil collapse, it has to crown the pipeline back with soil before being compacted to a density close to the former value.

-

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environmental impacts 3. Soil resource (continued) series, Mahaphot series, Phimai series, Tha Rua series, Saraburi series, Manorom series and Saraburi/Manorom series. Most soils contain medium to high contents of natural mineral nutrients.

Thailand, it is found that the project area has very low present soil erosion rate.

(5) After backfilling of the NGP in each section, the soil are reconditioned to the former ones promptly

(6) Construction by Open Cut requires prevention of collapse of soil and close area by installation of soil collapse prevention tools such as sheet pile or trench box or other suitable materials.

(7) Preparation of tools and adsorbed materials such as saw dust, cloth bit or sand for cleaning of oil and fuel spilt over the area. The materials used for cleaning are required to be disposed as hazardous materials.

(8) In the case of waste bentonite left from mixing or left in a pit, the project will mix bentonite mud with natural materials such as saw dust, grass bit, rice straw, rice husk, etc., with a ratio of 50:50, according to the suggestion of Land Development Department. This will add organic substance to the materials before being filled the green area of Nong Saeng Power Plant.

4. Surface water quality and aquatic ecosystem

In the project area, there are water sources crossed by the project NGP including Klong Rapeepat, Klong Baan Khok and Klong Huayba.

Laying of the project pipeline crossing those water sources employs HDD. The pipeline is at least 3 meters deep from a canal bed. Pipeline laying will not affect water quality in those water sources. Quality of the water from the hydrostatic test with a volume of 8,781 m3 will be checked as stated in the Notification of Ministry of Science, Technology and Environment (MOSTE), No. 3 (B.E. 2539) on Effluent Standard

1) General measures (1) Stop constructing in a heavy rain period and keeping soil piles

away from canal banks as far as possible to prevent soil leaching into water sources.

(2) Reclamation of the area immediately as soon as pipeline laying is finished. This is to prevent soil leaching into water sources.

(3) Preparation of rubbish containers in the constructing area to collect and take them out for disposal everyday to prevent contamination of adjacent water sources. Disposal of construction materials bits into water sources is strictly prohibited.

(4) Getting enough toilets built for workers in the area as given in the Notification of Interior Ministry on “Designation of welfare concerning health and hygiene for employee”. The toilets are at least 15 meters

1) Surface water quality (Case of pipeline laying crossing surface water sources) Measuring index

- Acidity-alkalinity (pH) - Temperature - TDS - SS - Biological oxygen demand

(BOD) - Oil and grease

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environmental impacts 4. Surface water

quality and aquatic ecosystem (continued)

Water quality in the area is comparable to the water quality Type 3 given in the Notification of NEB No. 8 (B.E. 2537).

for Industrial and Industrial Estate Sources before being released to the rain water pond of Nong Saeng Power Plant. The water from hydrostatic test will not be released to adjacent surface water sources.

from water sources. Preparation of waste water treatment tank for treating of waste water. Getting sewage pumped out regularly by a sewage truck. (5) Prohibition of cleaning of devices, tools and machines and/or

releasing of used water, contaminated water, oil contaminated water, used lubricants, and other contaminants to water sources

(6) Laying of pipeline crossing canals must employ HDD to prevent and mitigate impacts on canal water quality.

(7) Positions of the HDD drilling and receiving pits are at least 20 meters from embankment. A sediment filter is needed to be installed around the area vulnerable to soil leaching into the close water sources.

(8) Specifying the designed depth of the pipeline crossing canals by HDD to be at least 3 meters from a canal bed (considered from canal cross section) in the period of construction design.

2) Measures for releasing of water from hydrostatic test (1) No addition of any chemicals harmful to environment to the water

used for hydrostatic test (2) Installation of a sieve or a net with small open holes to separate

sediments or suspended solids at the end of the pipe used for releasing of water from hydrostatic test and collection of rubbish and waste solids for further disposal

(3) Getting the used water from hydrostatic test checked of quality, for example, acidity-alkalinity (pH), total dispersed solid (TDS), suspended solid (SS) and temperature, along the surface water quality measurement standard to ensure that the used water has quality as stated in Notification of MOSTE No. 3 (B.E. 2539) on

- Turbidity Measuring station

Area in which the pipeline is crossing surface water sources, such as

- Klong Rapeepat - Klong Baan Khok - Kong Huayba

Duration/frequency Measure for 2 times before and during construction across water sources

Measuring method Methods specified in Standard Methods for the Examination of Water and Wastewater

2) Waste water from hydrostatic test Measuring index

- Acidity-alkalinity (pH) - Temperature - TDS - SS

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environmental impacts 4. Surface water

quality and aquatic ecosystem (continued)

Effluent Standard for Industrial and Industrial Estate Sources. If the quality does not meet the standard, the used water is required to be treated before releasing to the rain water pond of Nong Saeng Power Plant.

(4) In case of complaints about releasing of water from hydrostatic test, quick action of problem solving has to be conducted.

Duration/frequency The end of the pipe for releasing of water from hydrostatic test before being transferred to the rain water pond of Nong Saeng Power Plant

Measuring method Methods specified in Standard Methods for the Examination of Water and Wastewater

5. Land ecosystem For general conditions of the area along the NGP and of the close areas, land usages include rice fields, unoccupied areas, community areas and public places. There are no forests or conservation areas.

In the ROWs of Liap Klong Soi 9 Kwa Road and Liap Klong Rapeepat Road, there are some trees scattering in the area. There are no conserved trees. The trees found are local varieties, such as Indian almond, white popinac, Manila tamarind, etc. In area excavation period, trees in the ROW may be removed depending on the agreement made with the area permit organizations because pipeline laying in the area with trees may cause difficulty in working during construction.

(1) Surveying of tree types and numbers in the area to be cleared and making a list of trees to be cut and grown as compensation after construction is finished.

(2) Making a plan and tree removal procedure to be approved by the authorized organizations before work conduction.

(3) The trees removed from ROWs would be put in a tree nursery area before being replanted in an area near the former area and at the allowed positions only.

(4) Removal of trees had to be done carefully and did not disturb other trees outside the working area.

-

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Important environmental impact Measure for prevention and mitigation of environmental

impact Measure for monitoring of

environmental impacts 6. Transportation The important roads in the project area expected to be main traffic routes during the construction period include Highway No. 1 and Liap Klong Rapeepat Road. The present traffic conditions on both roads are fluent.

The project construction period is planned to be 14 months. Machinery, device and construction materials are transported to the project area by trailers. Transportation of workers uses small trucks. In assessment of impact caused by traffic increase in the form of V/C, it is found that Highways and related roads, such as Highway No. 1 -old and -new routes and Liap Klong Rapeepat road having present V/C values of 0.051, 0.253 and 0.081, respectively, will be able to sufficiently handle the traffic increases with V/C ratios of 0.060, 0.257 and 0.099, respectively. The traffic will be in a good flow and there will be no changes from the present conditions. However, transportations of machines and natural gas pipes may impact people living along roads, particularly in the ROWs of RID Road and Liap Klong Rapeepat Road.

1) General measures (1) Informing the construction plan to local organizations and people

in the close area and making public relationship (PR) to road users in advance for 1 month by posting the construction plan in the road section to be crossed by the NGP.

(2) Training and controlling of drivers of the vehicles related to all kinds of constructions and having them follow traffic law and DOH traffic management requirements seriously for the whole construction period.

(3) Control of machine and device loading on trucks to be within the limits given in the announcement of special highway director, highway director and concession highway director on prohibition of vehicles with overloading or with overloaded axles to use special highway, highway and concession high way, B.E. 2548.

(4) It has to have a chase vehicle to lead the transportation of devices, heavy machines and natural gas pipes in order to warn and help in the case that the trailer is passing a critical area.

(5) Limitation of the construction materials transportation speed, on RID Road, Liap Klong Soi 9 Kwa Road and Liap Klong Rapeepat Road, is not over 30 kilometers per hour.

Measuring index - Record of daily number of

traffic in and out of the construction area

- Record of number of accidents occurring in the project

- Number of complaints from road users in the project area

Measuring station - The project temporary construction office for recording of daily number of traffic in and out of the construction area

- The construction area for recording of accident number of the project

Duration/frequency - Making a monthly report

for the whole construction period

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Table 5-1 (continued)



environmental impacts

6. Transportation (continued)

(6) Transportation of pipes to the stringing area is limited at the amount to be used on each day. Pipe stringing needs to be tidily and not obstruct the traffic.

(7) Having traffic facilitators work in the construction area and at entrance to the construction area and in the section with a closed traffic lane.

(8) Making a working plan in harmony with other construction parts in order to reduce the number of access to the same place.

(9) Preparation of construction area by clear fencing of the construction area from traffic lanes by concretes, fences or plastic clones and installation of warning signs and blinking light at day and night at least 150 meters before the construction site or with respect to the area agreement. The traffic signs should be reflecting types.

(10) In case of closure/reduction of traffic lanes for construction, the project has to inform the surrounding communities beforehand along with construction period and number of closed lanes. The construction has to be finished quickly.

(11) The construction crossing alley or gateway by Open Cut, it has to inform people about the construction time. The construction has to be finished quickly. If the work is not finished within 1 day, the trench is covered by a steel sheet to make a gateway be usable or a bypass lane is prepared before construction.

Measuring method - Record of daily in-out traffic

number to the project construction area with vehicle classification

- Record of accident number with specified cause and severity

- Record of complaints of road users

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6. Transportation (continued))

(12) Avoiding putting a weld pipeline to obstruct gateways to houses or small lanes

(13) Avoiding putting materials piles to obstruct traffic and immediate moving of construction materials out of the area after construction.

(14) In case the construction caused damage to signs, traffic signals or traffic surface, it had to get them repaired promptly. Survey of road conditions for making a list of roads used for construction by classification them into crossing roads and access roads and making preparation for quick road restoration.

(15) Improving pavement and traffic surface to the former condition or even better after construction

(16) Accelerating of area reclamation after construction and installation of warning signs and/or clear pipeline makers

(17) Making a transportation plan for vehicles used in construction in order to avoid traffic problems

(18) Clear off the soil bits fallen to the roads used by the project vehicles and the public roads adjacent to the construction site every days.

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environmental impacts 6. Transportation (continued))

2) Measure for constructions using HDD and boring

(1) Getting pipes welded in a working area and been away from traffic surface by preparation and welding of pipe number just enough for HDD only in order to avoid obstructing traffic.

(2) For construction of entry and exit pits in ROWs, ground opening has to be done only for the working area which is fenced clearly and posted with warning signs for passerby at day and night.

(3) Pipe stringing has to be done in ROWs. It will not obstruct any activities in the areas for example traffic and making a living, etc.

3) Measures for mitigation of impacts from closure/reduction of traffic lanes (1) Making PR to road users crossing the project construction site to

know 1 month before the construction begins so they will cautious or take another roads.

(2) Having at least 2 traffic facilitators work for the whole period of traffic lane diversion, with one staff at the starting point of diversion and the other at the construction site end.

(3) Avoid constructing and transporting of materials in rush hours (07.00-09.00 am.) and (16.30-17.30 pm.) to reduce impacts on traffic in the areas of Kum Hak TAO Road, Liap Klong Soi 9 Kwa and Highway No. 1.

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6. Transportation (continued))

(4) Having staffs conduct the traffic and making alternative stopping and moving of vehicles for each lane in order to prevent fighting for a driving lane and accident due to two-way driving.

(5) Preparation of a parking lot for trailers and worker trucks in a area which is not obstructing the traffic. Putting the machines, devices and materials with tidiness within the construction site only.

(6) Removing of unused materials and tools out of the area promptly. For the materials to be used, they are needed to keep in a suitable area.

(7) Coordination with DOH for the construction plan of the section in the area of Highway No.1.

(8) Coordination with local organizations/police stations for consultation and traffic conduction by asking policemen to take care the job.

(9) Finishing of pipeline laying in each section quickly in order to reduce impact on passerby.

(10) Getting warning signs or signals installed at least 150 meters before the construction site in order to be seen easily both at night and day. Getting fences, plastic clones, warning signs and blinking lights for closure/reduction of traffic lanes with necessary length of traffic lane diversion.

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7. Waste materials management At present, most houses in the studied area dispose waste materials by burning or landfills in their own areas. In addition, local organizations, such as Nong Saeng TM, Khotchasit TM and Nong Khae TM are responsible to collect waste materials and dispose them properly.

Wastes from construction include construction materials bits from welding, metal bits, concrete bits, etc. The rubbishes from workers and the project staffs are general trashes, such as food boxes and bags, drinking water bottles, papers, etc. It is estimated to have 160 kilograms of trashes a day (rate of rubbish generation is 0.8 kilograms/person/day and maximum workers of 200 people/day). In addition, the construction by using HDD yields some remaining bentonite, which will be used for landfills in the green area of Nong Saeng Power Plant.

1) General waste management (1) Preparation of sufficient rubbish containers with lids and trash bags

at working area and to get the rubbishes disposed by local organizations

(2) Informing staffs and workers about keeping the construction site clean and asking them to do seriously.

(3) Collecting of reusable materials bits, such as metal bits and wood bits and selling of those bits to vendors. Collecting of confusable materials bits and rubbishes and getting them removed out of the construction site every day.

2) Hazardous waste (1) Hazardous wastes having characteristics and properties stated in

the Notification of Ministry of Industry on Disposal of Confusable Waste Materials B.E. 2548 in Appendix 2 stating that it is required to get a hazardous waste separated from general one and to get them disposed by an organization having a permit granted by Department of Industrial Works (DIW).

(2) The wastes generated from machinery maintenance, for example oil, lubricant, solvent, absorbent or cleaning substance and spilt oil, have to be separated from general rubbishes and getting them disposed by an organization having a permit granted by DIW.

(3) Making requirements of hazardous wastes for subcontractors to follow strictly and having subcontractors show bills of hazardous waste transportation as evidences for receiving of last payment.

Measuring index - Quantity of general

rubbishes and waste from construction activities

- Number and frequency of rubbish disposal

Measuring station - Area of the project

temporary construction office - Construction areas in the

whole NGP route

Frequency To conduct for the whole construction period

Measuring method Record of rubbish quantity and rubbish collection frequency in the construction area/ the project temporary construction office

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environmental impacts 7. Waste materials management (continued)

3) Bentonite mud management

(1) Mixing of bentonite for using in HDD in sufficient quantity only to reduce disposal quantity and disposal area

(2) For the whole period of construction by HDD, it is necessary to getting staffs take care the job and to prepare materials, such as sand sacks, for blocking the area to prevent bentonite getting out to the surrounding areas.

(3) In the case of waste bentonite left from mixing or left in a pit, the project will mix bentonite mud with natural materials such as saw dust, grass bit, rice straw, rice husk, etc., with a ratio of 50:50, according to the suggestion of Land Development Department. This will add organic substance to the materials before being filled the green area of Nong Saeng Power Plant. The procedures for management of the waste bentonite from HDD are as follows;

(a) During transportation of bentonite left from HDD, the materials have to be covered to prevent spreading. The bentonite is piled up in an empty area in Nong Saeng Power Plant.

(b) Mixing bentonite with natural materials until the mixer looks like natural soil.

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environmental impacts 8. Drainage and flood prevention

The studied area used to be flood because rain water flew to and gathered at lower land surrounded by roads. The studied area topography has a slope down to Klong Rapeepat. In addition, the left dike of Klong Rapeepat is a high road. Thus the accumulated water cannot cross over the dike.

The construction, for laying of the project NGP in road ROWs crossing 3 water sources, such as Klong Rapeepat, Klong Baan Khok and Klong Huayba, may cause waterway shallowness due to soil leaching during raining. In addition, the construction using Open Cut has to dig a trench for NGP laying. Trenching may cause flooding and drainage problems during heavy raining. Draining of water from the trench may impact the adjacent public drainage system.

(1) In the case of necessary stream blocking, a temporary by-pass stream has to be made, or spared drain pipes have to be installed, to divert the water flow.

(2) No construction activities during heavy raining.

(3) Restoring of canals crossed by the NGP to the former or better conditions and removing of construction materials bits, which are fallen into or obstruct the drain canal.

(4) Preparation of spared water pumps ready for using in the whole construction period to prevent and solve flood problem or to drain water in the working area.

(5) Prohibiting workers not to throw rubbishes into water sources and drain canals adjacent to the construction area.

(6) Avoid piling up soil from pit digging near canals or public drain canals in order to prevent water flow blocking by soil bits.

(7) Pumping of water from a trench or a pit to road surface or pavement is prohibited. For the pumping of water to existing drain pipes, it has not to let mud into the drain pipes. It has to prevent begriming of road surface or pavement by water because it may cause nuisance to road users and passerby.

-

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environmental impacts 9. Economy-society and public participation

According to the economy-society status in the development plans of TAOs in the studied area, most people are farmers. Major incomes are from plant growing, rice farming, animal raising and aquatic animal raising. In all subdistricts, there are full of infrastructures including road, tap water system, electricity system, communication, school and public health service.

The project area and surrounding areas are formerly agricultural lands (rice farms). When Nong Saeng Power Plant starts operating, demands of accommodations and various services will be increasing quickly. Housing estates and communities will be developed continuously. From the survey of economy-society and the conduction of public participation during the study and EIA period, it was found that sample groups in different community had perception of natural gas transportation and the Natural Gas Pipeline to Nong Saeng Power Plant at a good level. Their attitude to the project was positive. When the studied issues were analyzed with respect to 3 opinion types, such as opinion or feeling on natural gas, on the project responsible persons and their operation before starting of the project and on the issue of benefits to be happened or to be gained from the project, it was found

1) Public relationship and making understanding of the project The Gulf JP NS Co., Ltd., realizes and gives priority to making of

knowledge and understanding of the project. These make confidence on natural gas transportation via pipeline and make good relationship between communities and the Gulf JP NS Co., Ltd. The company sets up the “Mass Communication Coordination Center”. The center will conduct PR with people in the project area to know about procedures and construction and operation periods. It will also promote public participation, public hearing and getting complaints for environmental impact. The project makes a plan for PR and making understanding with communities as follows; (1) Getting the Gulf JP NS Co., Ltd., mass communication staffs meet

or visit communities along the NGP route to make them have friendly feeling and be opened to get news and information. The visit is also for getting people suggestions and opinion for making good understanding. The mass communication staffs are the same set for the power plant and being the same compliant channel.

(2) Meeting with community leaders and local organization/police station executives to present the construction plan and methods that may cause impacts to communities, e.g., ground opening for entry and receiver pits, machine noise and construction period, and to discuss a measure for prevention and mitigation of impact and to get cooperation during construction period, particularly mitigation of impact on gateway obstruction and PR to community about the construction plan.

Measuring index

- Community opinion and complaint, number of community visit, number of help giving and problem solving for people impacted by construction activities

- People opinion about impacts from construction activities

Measuring station - People and community

leaders in the areas close to the construction site within a periphery of 500 meters from the route.

Duration/frequency - Opinion and complaint

record is done for the whole construction period.

- Questionnaire interview is done 1 time during the construction period.

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9. Economy-society and public participation (continued) For overall opinions of people who gave information in the area and had positive attitude to the NGP project, most of them agreed with the NGP project in community areas since they saw it as a public project having benefits for the whole society, e.g., energy and community development. From PR and public participation operations which had been done

that the opinion on the project responsible persons and their operation before starting of the project had a proportion of people in a group of positive opinion lower than that of other issues. However, there were some people showing concern about impacts from the project. They felt unsecured on safety of the NGP crossing a community and felt that natural gas was dangerous.

(3) Making a good relationship and coordinating with relevant organizations in governmental and private sectors continuously to make good friendship and cooperation in future problem solving.

(4) Enforcement of community understanding by proactive PR and increase of learning about different project issues by organizing of exhibition, posting boards of the project, leaflets consisting of construction plan, construction method, measure for prevention and mitigation of construction impacts and channels for communication with responsible persons in case of emergency.

(5) Performing the construction plan PR and informing the construction plan of each NGP section to communities along the route by giving PR documents including construction map, procedure, impact mitigation method and various measures to communities, particularly people living close to/next to the whole route along the roads, in which sections of pipeline laying are constructed. Information distribution has to done 1 month in advance. Informing is also done by using TAO, project PR boards, newsletters and local radios.

(6) Making PR to road users crossing the project construction site at least 1 month by posting project PR boards along the NGP route so they will cautious or take another roads.

Measuring method - Statistical record of

opinion and complaint from community and record of community visit and problem solving report

- Questionnaire interview with 300 samples by taking all families close to the route (0-50 meters) first and then interviewing the rest samples in 50-500 meter peripheries.

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environmental impacts 9. Economy-society and public participation (continued) continuously in the period from pre-study to study. They included visit, consultation, detail interview, public hearing meeting. It was found that for overall most targeted groups agreed with the project. There were some people concerning with safety of the gas leak. The project had explained to people and took the issue for making a measure for prevention and mitigation of impact.

(7) The construction crossing alley or gateway by Open Cut, it has to inform people about the construction time. The construction has to be finished quickly. If the work is not finished within 1 day, the trench is covered by a steel sheet to make a gateway be usable or a bypass lane is prepared before construction.

(8) Posting a board or warning signs on the project construction site boundary so they can be seen and known easily and clearly.

(9) Promotion of participation in society and environment care, making community knowledge for sustainable development, conducting of activities for public benefits and various sustainable developments. The promoted activities include PR activity and strengthening of people sector organization, life quality development project, religious activity, custom and culture, education, sport, health and environment activity.

(10) For traffic lane closure/reduction for construction, before working the project has to inform communities about construction along with time length and number of lanes to be closed. Construction has to be finished quickly.

(11) Assignment of clear schedules for solving general and emergency complaints and preparation of the company complaint forms.

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Important environmental impact Measure for prevention and mitigation of environmental impact Measure for monitoring

of environmental impacts

9. Economy-society and public participation (continued)

(12) Get up the “Mass Communication coordination center” to promote the operation, measure for prevention environmental project impact and opinion hearing and complaints from communities continuously by putting opinion boxes at public places such as local government agencies temple school. Investigate the complaints everyday and inform of problem solving progress through multiple channels as follows:

(a) Posting at local government agencies such as TAOs (b) Project PR boards in front of the project site office (c) Radio stations or community radios or broadcasting towers (d) Informing directly to complainers (known and contactable

complainers) (e) Problem solving summary published in newsletters (f) Making a letter to TAO, community leaders and relevant offices (g) Informing via community meetings in villages and subdistricts

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2) Mitigation of impact of community peace disturbance การลดผลกระทบ (1) For noisy construction activities, In the case that the construction is

crossing accommodations along the route, governmental offices, religious places and schools, the project has to inform the construction plan with clear starting and finishing dates and make a letter informing a construction working plan to local administration organizations for 1 month in advance.

(2) Control of worker behaviors closely to prevent them from making disturbance to communities around.

(3) Following the measures for prevention and mitigation of environmental impacts in the construction period seriously.

(4) Having subcontractors speed up the NGP construction as fast as possible. (5) Stopping of any construction activities crossing communities during heavy

raining (6) Having staffs monitor, control and take care of areas after construction.

They also receive people complaints and solve the problem promptly. 3) Making confidence of environmental impact solving to community (1) Taking details in the environmental working plan to assign clear and fine

conditions in the contracts for design, construction and operation in order to get practical efficiency and effectiveness. Posting and distributing of the conditions so they are known by communities around the project area.

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(2) Operation along the working plans for economy-society and public participation in order to make community understand and participate in all steps of project development and making PR of construction plan to community, community leader, local administration organization and local relevant offices for 1 month in advance.

(3) Making the communities in the areas crossed by the project NGP route and adjacent communities participate in watching and preventing any incidents occurring to the project NGP route.

(4) Activities causing daily life and environment problems included noise, dust vibration and safety, etc. Apart from following the measure for prevention and solving of impacts strictly, it was necessary to inform and publicize to people continuously in order to make confidence and get cooperation from communities/local organizations.

(5) Organizing of activities promoting community knowledge and understanding, for example, organizing of a tour visiting the NGP security control system or the supervisory control and data acquisition (SCADA), organizing of a mobile exhibition about natural gas for schools in the studied area and making publicized documents, such as leaflets and newsletters, for giving knowledge to people continuously.

(6) Coordinating with community leaders and relevant offices to give help and solve the problem for people impacted by construction activities of the NGP.

(7) Having public insurances to protect life and property damages caused by NGP construction.

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(8) In the case of property or buildings damages, subcontractors have to report the damage cause and consequences to Gulf JP NS Co., Ltd., for every case. Record with details has to be done to prevent damage duplication and to check working tidiness.

(9) Control of subcontractors to complement the measures can be done as follows;

(a) Attach the measures as parts of employment contract (b) Meeting for working conclusion and working planning between

subcontractors and the project owner before working in the morning of everyday.

(c) Having project foremen control the working of subcontractors regularly for the whole working period. If the subcontractors do against the measures or laws or complaints, the project owner will ask the subcontractors to improve. If no improvement is done, the project owner will ask the subcontractors to stop working until the problem is solved.

(d) If the problem cannot be solved within the assigned schedule or by requirements of complainers or of the project owner, it is necessary to inform the causes, rationale and problem solving progress case by case (according to complaint receiving flowchart)

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environmental impacts 10. Occupational health and safety

During construction

procedure, various

activities may impact

on occupational

health and safety of

people living around

and workers. The

impact levels are

different depending

on activity

characters. Measures

for prevention and

mitigation of impacts

are proposed.

Activity performing of each step in the project construction period may cause accidents, such as pipeline welding, pipe transportation and piling and pipeline laying. Careless working causes danger to workers or people living near the NGP. Moreover, workers may be impacted on health due to works, such as dust, construction noise and injury from working.

1) Pre-construction period (1) Design for NGP safety in all steps and with respect to international

standard, such as ASME B31.8 (2) To have personnel qualified and well-trained as occupational

health and safety officers be the inspectors of safety at work. 2) Construction period

(1) NGP joining at the beginning of the route (1.1) Preparation of personnel responsible for welding of natural gas

pipeline. It should have responsible persons in Gulf JP NS Co., Ltd., subcontractor company and PTT.

(1.2) Inspection in details on preparation of tools and devices used for welding of natural gas pipeline under supervision of the staffs of Gulf JP NS Co., Ltd.

(1.3) Organizing a meeting for working groups for production, maintenance and safety in order that they understood the same thing and briefing the welding procedure to responsible persons before operation.

(1.4) Preparation of personal danger prevention kits for workers working on welding for example safety shoes, safety helmet, gloves and glasses and having them wear personal danger prevention kits during working.

Measuring index - Statistics of accident,

illness and injury from working

Measuring station

- Construction site of the NGP

Duration/frequency - Intervals with at least once a

month Measuring method

- To have personnel qualified and well-trained as occupational health and safety officers be the inspectors of safety at work.

- Record of accidents along with causes, solving methods and damages to worker health.

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environmental impacts 10. Occupational

health and safety (continued)

(1.5)Getting fire fighting devices prepared for using in pipe welding area for the case of emergency for example fire engine, gas detector, chemical fire extinguishers with size of 15 pounds and ambulance, etc.

(1.6) Getting warning signs posted and welding area blocked and getting the work permit system worked.

(1.7) Performing pipe joining to the main pipe with respect to the guideline for hot tapping of PTT and the hot tapping procedure is required to be approved by PTT.

(1.8) Blocking of the area so a machine is not close (less than 4 meters) to high voltage transmission lines according to the announcement of EGAT.

(1.9) Preparation of a safety distance symbol or a goal post at transmission line sag for machine movement observation.

(1.10) Grounding a pipe or any metallic materials put under high voltage transmission lines and a clamp contacting area on materials to be ground should be enough for transferring current to ground.

(2) Trenching, Pit digging and pit backfilling (2.1) Getting a backhoe checked if it is in a good condition and

safe before using it. (2.2) During digging by a machine, workers are disallowed to be in

a pit or in a close area possible for getting accident from the machine working.

(2.3) Getting a fence put around pit edge to prevent falling in the pit and getting light and blinking light installed at night.

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(2.4) Getting a construction area blocked. When a backhoe is working it has to put a signal board in a trench excavated area and a sign of danger restricted area.

(2.5) Putting a goal post at transmission line sag to be used for observation of machine movement not higher than the safety distance.

(2.6) Having workers for trenching and backfilling wear safety helmet, rubber floor shoes, ear plugs and glasses for the whole working time.

(2.7) Having workers wear protection equipment during working in dusting area, e.g., wearing of dust helmet and cloth mask.

(3) Natural gas pipeline welding (3.1) The project plans to make a contract with subcontractors

having workers with high quality and professional registration. (3.2) Getting welding machines checked before working and if they

are out of order, it has to get them repaired before working. (3.3) All electricity appliances must be grounded to prevent current

leak. (3.4) Having workers wear personal danger protection kits for

welding for example welding mask, light reduction glass or light reduction mask, glove, rubber floor shoes and welding sparking proof apron.

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(3.5) Getting a welding area blocked and posting a danger restricted area.

(4) Welding inspection (4.1) Having experts do welding inspection by using non destructive

testing (NDT). (4.2) Getting the area for welding inspection using radiation blocked

and getting warning signs of danger restricted area installed and getting the work permit system done.

(4.3) Having workers wear danger prevention kits such as gloves, safety helmet and safety shoes.

(4.4) Workers have to get a film badge inspected and put on before working.

(4.5) The area for welding inspection using X-ray must have a sign of radiation showing a message and symbols as given below;

(5) Pipeline lowering to a trench (5.1) Getting a backhoe and lifting device conditions checked

before working. (5.2) Inspection for clearing of barricade or people in unsafe

distance from pipe lifting. (5.3) Having workers wear safety helmet, rubber floor shoes and

ear plugs for the whole working period.

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10. Occupational health and safety (continued)

(6) Commissioning work Workers working with air flushing out of the pipeline before gas delivering by using nitrogen gas must wear ear plugs during working.

(7) Stock of materials (7.1) For utilization of an area for stocking of materials and natural gas

pipes, subcontractors must get permission from the land right owners and must follow regulation designated by Gulf JP NS Co., Ltd.

(7.2) Keeping environmental conditions of the materials stocking area by storing and materials piling tidily and keeping materials bits piling only when they are necessary.

(7.3) The area for storing fuel oil and lubricant for vehicles and engines must be a concrete floor with a roof and surrounded by concrete dikes of 15 centimeters high. This area is able to contain fuel oil with a volume equal to capacity of the biggest tank.

(7.4) For spared fuel oil, it has to be stored in a bin with a lid and kept on the concrete floor.

(8) Transportation and stocking of natural gas pipes (8.1) Stocking of pipes by the method agreed with Gulf JP NS Co., Ltd.,

and taking good care of pipes in order to avoiding pipe damages. (8.2) Subcontractors are responsible to acquire for sleeper timbers and

must adjust timber levels before piling the pipes. They have to use wooden wedges at the pile base to prevent pipe pile collapse and to ensure stability of contact between pipes and sleeper timbers.

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(8.3) Pipe turning is not allowed. Shorter pipes must be put on top.

(8.4) For construction area restoration, subcontractors must collect materials and rubbishes so the area is tidied up before handing the area back.

(9) Management of safety and occupational health in the area of the site office

(9.1) Getting sufficient consumable water prepared for workers at a rate of 14 cubic meters a day.

(9.2) Building sufficient toilets for workers in the area according to the Notification of Interior Ministry on designation of welfare concerning employee health. The toilets must be at least 15 meters from water sources. Releasing of untreated waste to water sources is prohibited.

(9.3) Getting bins with capacity of 200 liters put in the area of the site office for collecting wet and dry rubbishes from workers separately and non-sale or non-recycled construction material bits. The rubbishes must be disposed according to the Notification of Ministry of Industry on disposal of waste or unusable materials, B.E. 2548.

(9.4) Getting sufficient amount of mobile fire extinguishers installed in the construction area and in the area easy to be seen.

(9.5) Having security guards control access at an entrance for 24 hours.

(9.6) Having employees of subcontractors put on ID cards before entering or exiting the site area.

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(9.7) Control workers closely to prevent them from making annoying things to people living near the construction area.

(9.8) Setting up punishment for workers who do against a regulation.

(9.9) Coordinating with local policemen and requesting for cooperation in controlling of workers behaviors and disciplines

(10) Fire prevention in the construction area and preparedness for emergency

(10.1) Ignition or putting a fire in a working place was prohibited except for the allowed case of heat related work.

(10.2) Getting first aid kit installed in the site office. (10.3) Getting a vehicle prepared for taking injured people to a

close hospital immediately in case of accident during working

(10.4) Getting enough amount of mobile fire extinguisher installed in the construction area and in the area easy to be seen.

(11) Measures for pipe laying crossing/parallel to existing NGP/infrastructure (11.1) Checking positions of existing NGP and infrastructure

systems by coordinating with authorized organizations for existing NGP and infrastructure systems.

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(11.2) Assignment of safety distance with respect to standards providing rules for distances between NGPs, e.g., ASME 31.8 on the topic of 841.14 Cover, Clearance, and Casing Requirement for Buried Steel Pipeline and Mains assign the NGPs clearance to be at least 6 inches (about 15 centimeters)

(11.3) In the case that trenching is doing near the existing NGPs, sheet piles with suitable size and length must be put along the NGP route to prevent soil movement and impacts on the existing NGP route.

(11.4) The Gulf JP NS Co., Ltd., must have staffs control subcontractor’s working closely during construction close to other infrastructures in order to increase carefulness and monitor impacts from pipeline laying. If the problem or damage is observed, they must coordinate and speed up the problem solving.

(12) Measures for safety and prevention of accidents by third party (12.1) It is assigned to put concrete slabs with 1 centimeter thick at

position of trenching for pipeline laying or tie-in point. (12.2) For Open Cut, it is assigned to put a yellow warning tape with

message at 0.7 meter deep and put a concrete slab at 0.5 meter deep and above the NGP route.

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(13) Measures for prevention and mitigation of impacts on workers working with bentonite mud

(13.1) During mixing of bentonite, workers must wear dust helmet, gloves and goggles.

(13.2) After contacting or working with bentonite, workers must clean their hands and faces before eating or drinking.

(14) Accident report

When there is injury or accident from working, it must report the foreman promptly. Preparation of an accident report describing of cause, solving method and damage.

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Gulf JP NS Co., Ltd. Executive Summary Table 5-2

Report showing important environmental impacts Measures for prevention and mitigation environmental impacts and measures for monitoring environmental impacts in the operation period

Natural Gas Pipeline to Nong Saeng Power Plant



environmental impacts 1. Economy-society

and public participation

Transportation of natural gas by pipeline is expected to create economy-society benefits, such as implementation of the nation electricity demand and reduction of imported fuels and electricity. It is also beneficial to communities by main policy of mass communication, which gives priority to monitoring and care of environmental condition restoration and community quality of life.

The project area and surrounding areas are formerly agricultural lands (rice farms). When Nong Saeng Power Plant starts operating, demands of accommodations and various services will be increasing quickly. Housing estates and communities will be developed continuously. From the survey of economy-society and the conduction of public participation during the study and EIA period, it was found that sample groups in different community had perception of natural gas transportation and the Natural Gas Pipeline to Nong Saeng Power Plant at a good level. Their attitude to the project was positive. When the studied issues were analyzed with respect to 3 opinion types, such as opinion or feeling on natural gas, on the project responsible persons and their operation before starting of the project and on the issue of benefits to be happened or to

(1) Having mass communication staffs follow, inspect and take care of area tidiness after construction, to receive complaint relating to people troubles caused by the project development and to solve the problem quickly.

(2) Performing PR to make people living around the NGP learn about how to work near the NGP route, to ask for cooperation in keeping watching of the NGP route and in informing the case in which someone is hammering, digging or backfilling or doing any constructions in the NGP area in order that officers of the Gulf JP NS Co., Ltd., can inspect immediately.

(3) Publicizing of news and information to make people understand and trust in the NGP system, for example posting news on message boards of SAO, village, school and temple, disseminating information using leaflets and distributing emergency handbook for people in order to make their preparedness for NGP leakage.

(4) Having a public insurance to protect damages occurring to life and properties and caused by operation of the NGP.

(5) Promotion of participation in society and environment care, making community knowledge for sustainable development, conducting of activities for public benefits and various sustainable developments. The promoted activities include PR activity and strengthening of

Measuring index Complaints from people about obtained impacts and problem solving by the project

Targeted groups People, community leaders and persons impacted from pipeline construction

Duration/frequency Every complaint from people Measuring method

- Complaint receiving by the project staffs via local administration organizations, community leaders, telephones and letters, etc.

- Record number of complaint, opinion, suggestion, solving guideline and problem solving results for the whole operation period

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environmental impacts 1. Economy-society

and public participation (continued)

be gained from the project, it was found that the opinion on the project responsible persons and their operation before starting of the project had a proportion of people in a group of positive opinion lower than that of other issues. However, there were some people showing concern about impacts from the project. They felt unsecured on safety of the NGP crossing a community and felt that natural gas was dangerous.

people sector organization, life quality development project, religious activity, custom and culture, education, sport, health and environment activity.

(6) Posting the working plan for environment and the emergency handbook for people, organizations and business places, in governmental offices and communities near the NGP route.

2. Occupational health and safety When the project

is operating, there are no activities causing dangers to people living in the areas around because there is only natural gas delivering via the pipeline system at least 1.5 meters underground and there are measures for safety protection.

In the period of gas delivering, regular pipeline patrolling will be conducted. Repair of the pipeline will be done for the case of leak. These activities may affect health of workers and people living around. From risk assessment for the case of NGP leak and flaming with jet fire, it was found that impacts due to heat radiation at the level of 37.5 kW/m2 were able to destroy buildings structures or storage tanks. From risk assessment, it was found that only a ¼ inch leak had probability to occur with a maximum radius of 2.90 meters and with heat

(1) It must have workers working with natural gas be trained/taught on suitable occupational and safety issues such as regulation and working procedure along the NGP, applications of personal danger protection kits, emergency guideline, and first aid, etc.

(2) Measures relating to prevention and controlling accidents from gas leak; (2.1) To specify the areas in the block valve station and the MRS

as special areas under serious inspection and control and with work permit system for area access.

Measuring index - Statistics of accident,

illness and injury during working of staffs

- NGP leak, emergency, cause investigation and solving method

- Worker health

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radiation at a level of 12.5 kW/ m2. This was the heat that could impact on people. When the 1 inch leak, the most probable incident to occur for the project NGP, was considered, it was found that a maximum radiation radius 16.65 meters. Within the impact radius, most areas were unoccupied lands, accommodations close to the ROWs for pipeline laying and roads.

(2.2) It must have security guards work regularly at the block valve station and the MRS.

(2.3) Keeping pipeline markers to show a message and a call number easily to be seen.

(2.4) Coordinating with organizations crossed by the NGP to inform them that if they want to do any activities in a safety zone of the NGP, they had to inform the project in advance.

(2.5) Coordinating with local administration organizations to disseminate the project information, knowledge and natural gas safety and to ask for cooperation in pipeline monitoring and in notification of the case in which someone is hammering, digging or backfilling or any constructions in the NGP area in order that officers can inspect immediately.

(2.6) Coordinating with manufacturing plants around the NGP route to disseminate the project information in order to prevent them from causing ignition in the area near the NGP route and to ask for cooperation in keeping watching of any leak causes.

(2.7) For the case that the project needs to open ground surface for repairing of the project underground NGP due to an emergency, it must follow;

(a) Before working, the NGP area must be checked and

confirmed for its location and depth beforehand.

Measuring station The whole project NGP route Duration/frequency

- Record of statistics of accident, illness and injury during working of staffs and NGP leak/for every 6 month

- Worker physical check for every year

Measuring method Record of statistics of measuring indexes and cause investigation and solving method

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(b) For clearing works, digging must be done by workers. A back hole is prohibited. Mired vehicles had to be lifted up by a crane only.

(c) Dynamic compaction machines are prohibited for soil compaction works.

(d) Working area must be limited to only the area for NGP repairing. It must prevent the machines from making damages to other infrastructures.

(3) Preparedness for NGP leak incident (3.1) Making an emergency working plan to control the incident

promptly for the case of NGP leak. The emergency control center will be responsible to stop an emergency incident occurring to the project NGP.

(3.2) Making the project’s emergency handbook for people and distributing the handbook to communities and governmental offices near the NGP route.

(3.3) Cooperation with disaster prevention and mitigation offices and local police stations to set up a working group ready for coping with emergency from the NGP.

(4) In case that the Gulf JP NS Co., Ltd., transfers the NGP system to PTT Plc., after the construction is finished, all pipeline system emergency plans of the project will be changed to the PTT emergency plan, after PTT receives the right of NGP system.

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(5) Occupational health and safety work for workers (5.1) During repairing of a leaked NGP, the work permit system must

be employed to allow workers to work on welding and weld inspection by radiation. Area fencing, posting of danger area signs and strict prohibiting of irrelevant people to enter the area.

(5.2) Working area for radiation weld inspection must have radiation signs with the message “Be aware of danger in radiation area”.

(5.3) Radiation weld inspectors had to examine and put on a film badge before working.

(6) Inspection and maintenance of the NGP (6.1) NGP route watching

(ก) Regular patrolling of the NGP laying area by following the standard ASME B31.8 topics 851.2 851.7 and 852.1 for twice a year

(ข) Regular patrolling of pipeline markers by following the standard ASME B31.8 topic 851.7 for twice a year (at the same time of area patrolling)

(6.2) NGP route maintenance Regular survey and observation of NGP collapse and soil erosion in the areas of soft soil, watercourse and slope with respect to standard ASME B 31.8 topic 841.4 for once a year.

(6.3) Leak survey (a) Regular survey of NGP leak with respect to the standard

ASME B31.8 topics 851.3 และ 852.2 for once a year.

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(b) Regular checking of NPG coating damages for every 5 year or when environment changes or pipe to soil potential is lower than the requirement, special test must be done.

(c) Regular checking of insulating joint/.flange for leak or short circuit with respect to a standard for once a year.

(6.4) Maintenance of corrosion prevention system (a) Regular checking of electricity voltage used for

corrosion prevention of NGP at every 1 meter to see if any NGP section has voltage lower than the standard NACE RP 0169 for every 5 year.

(b) Regular checking of corrosion of NGP at high risk areas, such as bend joints or areas with high gas velocity and for the case that corrosion is observed on the NGP, with respect to the standard ASME B31.8 topic 863.2 for once a year.

(c) Regular checking of power supply system of the cathodic protection rectifier by measuring of different electrical parameters, such as current, potential and power, etc., or 12 times a year.

(7) Accident report Staffs who see the accidents have responsibility to make an accident

report to chiefs along the line of command and to relevant offices immediately in order to cooperate in cause analysis and making a measure to prevent duplicated accidents.

EIA: Thailand: Nong Saeng Natual Gas Power Project

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