Potential Surface Analysis for Supplying of Water Sources for Consumption to Support Community Growth, Si Mum Subdistrict Administrative Organization Nakhon Ratchasima Province

Abstract

The problem of rainfall non-seasonal is a main problem that affects to raw
water supplying, which is insufficient to meet the demand of population in terms of
consumption and water supply. Nakhon Ratchasima Province has an area that suffers
this problem around three out of fourths of the total area. Mueang District has been
facing this problem continuously since 2016-2019. Si Mum Sub-District has insufficient
raw water and sources for water supply that often effect to water lacks for use in the
dry season. In additional, the tendency of the community to high expand as it is a turning
point of the motorway. The increasing population as a result in increasing for water
demand as well. The aims of this research are to analyze potential areas and to
determine guidelines for supplying of water sources for consumption to support future
populations in the Si Mum SAO. The methodology of this research is analyzing the current
situation of the consumption water system, forecasting future demand for consumption
water, and analyzing potential areas for supplying consumption water resources using
the principle of Potential Surface Analysis (PSA) integrated with the Geographic
Information System (GIS). The result is a location that has potential as a new water
source area that classified as areas with high, medium, and low suitability. The high
potential area being a new water source area is nearing the old water supply source of
the community. It recommends planning guidelines for new water supply and calculating
the water capacity of the new water source, the capable of holding approximately 70,616
cubic meters of water to support the projected basic demand of the population over
the next 30 years, in addition, to propose a way to improve the landscape around the
new water source to be a recreation area in the community.