Determining Water Quality Status in University of Indonesia Depok Campus Lakes with STORET Method

The University of Indonesia has six artificial lakes around Depok Campus Area, namely Lake Kenanga, Agathis, Mahoni, Puspa, Ulin, and Salam (KAMPUS). These campus lakes have an area of about 17.5 hectares with an average depth varying between 1.5-3 meters with capability store waters up to 52,500 m³ of water. The University of Indonesia has its commitment to observe and evaluate the environmental quality as a part of an environmental monitoring program every semester. The observation data of lake water quality can provide information about parameters which has exceeded the environmental quality standard only, but not for the whole information about its water quality status. STORET Method is the common method which can be used to determine the water quality status. In principle, it compares the data of water quality measurement against national water quality standard appropriate with its purpose to determine the status of water quality. Based on the measurement data from 2017 to 2018, we obtained that Kenanga Lake, Agathis Lake, Ulin Lake, and Salam Lake has A Class quality status and meet the quality standard. However, Mahoni Lake and Puspa Lake are in C Class moderately polluted.