... properties: pH by glass electrode method, ORP, BOD and suspendedsolids (SS) by Standard Method for the Examination of Water and Wastewater (1995), COD by potassiumdichromate method, NH4-N by Nessler ... composed from locally available resources (Attanandana et al. 2000, Luanmanee et al. 2002). From these advantages, the MSL was appeared to be applicable for on-site treatment of wastewater from households, ... Multi-Soil-Layering Method. J. Jpn Soc. Water Env., 25, 361-366. (in Japanese- 99 -Sampling and AnalysesRiver water, pre-treated water by sedimentation tank and treated water were collected at around...