Surface Water Management

The natural landscape of Mahidol University, Salaya is a floodplain area as it is located on former rice fields and water lily ponds. Back in 1974 (B.E. 2517), after the land was owned by the university, the surface water system was proceeded. The first and the second university master plans, 1974 and 1997, have laid out the main canal system, a large canal both around and inside the university. Minor water drainage systems were connectively, comprehensively and effectively installed throughout the campus.
University campus development has greatly altered the canal system, especially wastewater management. Large drainage system was installed near the petanque court, while more ditches were dug on the south of the commercial area in order to connect them with the main system, resulting in systematic and connective water flow. Main, former ditches were dredged for better drainage and reduce water spoilage, while there were newly installed drainage systems, and building of pumping sub-station near the Faculty of Engineering area to alleviate flood during rainy season. University’s center of wastewater treatment system was built to gather and treat wastewater before releasing it out to public canals, reducing wastewater in canals and creating nice environment.
Regarding rainwater and surface water system management, Mahidol University, Salaya applies large reservoirs, ponds, drainage ditches, open gutter systems, and sewage systems which are installed around the campus, connected with main canals around and in the campus. This system gathers rainwater and surface water to two pumping stations; Chonlatan Building 1 located on the northeast corner, and Chonlatan Building 2 located on the southwest of the campus. Both stations also help keeping water in the required level to maintain nice scenery of the canal banks and ponds which also helps reduce water level in wet seasons, preventing and alleviating flood. The university also set watering system that pumps water from canals, ditches, and treated water center to water all of the plants in the campus.
The surface water management of Mahidol University mainly aims to prevent flood and manage water usage within the area. Moreover, it is a way to preserve natural wetlands and beautiful scenery, to use them as recreational sites. Such development is a promotion and an encouragement to achieve the 6th Sustainable Development Goal (SDG6): Clean Water and Sanitation, and SDG15: Life on Land.