**7. Acknowledgements**

The author would like to thank all staff member of Geology Department, Faculty of Science, Chulalongkorn University for their support. Dr. Chulalak Changul had been helping and providing information earned from her PhD thesis research. This book chapter is a part of work initiated by a research group named as Risk Assessment and Site Remediation (RASR) which has been supported by the Center of Excellence for Environmental and Hazardous Waste Management (NCE-EHWM), Chulalongkorn University. Moreover, this work was partly supported by the Higher Education Research Promotion and National Research University Project of Thailand, Office of the Higher Education Commission (project code CC1000A).
