Ciambulawung River is located in Lebakpicung Kampong close to Halimun Salak National Park. Ciambulawung River is used for micro-hydro power plant (capacity 10.000 Watt). The purpose of this study was to determine the water quality status of Ciambulawung River. The pollution index ranged 0.56 -0.78 and NSF-WQI ranged 87 -88. Hence the river water quality is considered good. Based on these indices it is concluded that communities living along river bank and micro-hydro power plant did not negatively affect the water quality of Ciambulawung River.