| Author | Thiantheera Piriyawong |
| Note | A thesis submitted in partial fulfillment of the requirements for the
degree of Master of Engineering in
Water Engineering and Management, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Groundwater vulnerability mapping is considered as a fundamental aspect for the
sustainable groundwater management especially in the tropical area like Thailand, where
more than 30 percent of the total population relay on groundwater for various purposes.
This study is designed to evaluate and assess the spatial distribution of various chemical
constituents as Total Nitrogen, Ammonium, Dissolved Oxygen, Chloride and Hardness in
the groundwater due to flooding and prepare the groundwater vulnerability map for all
above constituents exceeding some standard values.
This study initiates with the data collection from the field survey, face to face interviews
and other secondary sources as GISTDA and DGR. The various chemical constituents of
67 groundwater samples collected from the field and 33 registered wells are analyzed using
multivariate statistical technique. The flood frequency map of the study area is also
prepared based on the historic flood extend data from 1983 to 2011. From the analysis and
past experience of the farmers, it is observed that about 96 percent of the groundwater
wells are prone to flood. It is observed that wells which are abandoned and without proper
capping has higher concentration of nitrate and ammonium. Thus, Factor analysis for
identifying the inter related components for dependent and independent variable related to
groundwater quality is performed and identified the best set of components. According to
these identified set of components, Logistic regression model is developed for 5 different
constituents. The probability equation is obtained for all these constituents exceeding some
standard values. This is further used to develop the vulnerability map of the groundwater
quality constituents for various cases. |
| Year | 2014 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Babel, Mukand S.; |
| Examination Committee(s) | Shrestha, Sangam;Sudsaisin Kaewrueng;Lukkhana Benjawan; |
| Scholarship Donor(s) | Royal Thai Government; |