Sapyeong Village Sewage Treatment Plant

Bonglim Village Sewage Treatment Plant

Dreamland Recreational Forests Sewage Treatment Plant

Yongho Village Sewage Treatment Plant

Nagan Village Sewage Treatment Plant

Geoseok·Saza Village Sewage Treatment Plant (Ⅱ)

Naegu Village Sewage Treatment Plant

Kwanji Village Sewage Treatment Plant

Gangju Village Sewage Treatment Plant

Obong Village Sewage Treatment Plant