The bung Makkasan is a large swamp in the heart of Bangkok. The total area is about 92 acres. It is found in the field of railway train factory Makkasan, bung Makkasan shallow. The sedimentation of suspended solids Around the bung Makkasan have warren. Most of which are taking sewage and garbage into the bung Makkasan, The problem of environment deterioration and water pollution becomes a source of pathogen