Status of water quality and level of trophic in Juanda Reservoir of Purwakarta Regency, West Java, Indonesia

Juanda reservoir is one of the reservoirs located in Purwakarta Regency, West Java Province, Indonesia, whose primary function hydropower, water resources for irrigation, industrial and drinking water, secondary fisheries tourism activities. Currently, an increase activities around existing has affected its quality. In order to determine quality trophic level status reservoir, research been conducted within five stations during period August-December 2020. The includes physical, chemical, biological parameters that compared with Store standards on Class II III. Meanwhile, was determined by Trophic Level Index (TLI) based transparency, chlorophyll-a, total nitrogen, phosphorus. results show contaminated III heavily polluted II. exceed include ammonia, nitrate, BOD 5 . reservoir's tropic eutrophic category, TLI values ranging from 4.6 5.2.