Chiayi Area：The raw water is provided by Renyitan Reservoir and Lantan Reservoir, and then we use the local water purification system of Gong Yuan, Lantan, ShuiShang, Xingang, Minxiong, Zhuqi and Linne Water Treatment Plant to provide the Chiayi area; water demand about 280,000 tons per day.
Tainan Area：The raw water is provided by Zeng Wen Reservoir, Wu Shantou Reservoir and Nanhua Reservoir, and then we use the local water purification system of Wushantou, Nanyu , Zeng Wen ,Tanding, Baihe, and Jìngmian Water Treatment Plant to provide the Tainan area; water demand about 920,000 tons per day.
Kaohsiung area：The raw water is provided by Nanhua Reservoir, Gaopingxi River and Agongdian Reservoir, and then we use the local water purification system of Pingding , Kaotan , Dagangshan, Chengcing Lake , Fongshan , and Luzhu Water Treatment Plant to provide The Kaohsiung area; water demand about 1,500,000 tons per day.