Water quality status and pollution load of Krukut River, Jakarta Province

Abstract

In Indonesia, Rivers experience shifted functions, especially those located in Jakarta. As a capital, the rapid population growth and the high migration rate are unavoidable. This circumstance contributes to the degradation of environment quality including water in the rivers. Krukut river is one of those flowing down to Jakarta and has an important role in supporting the life of people. This river is intended to be the drinking water sources (based on DKI Jakarta governour decision no. 582/1995). Hence, this research aims to understand the status of water quality and potential contamination load of Krukut river. The quality of water was assessed by using the contamination index (following the MoE decision no 115 year 2003). The quality standard used is class I and Class II. Data collection was carried out in April 2015 in nine different observation points. Our analysis found that the water quality standard within class I was heavily contaminated in all observation points. Meanwhile, standard quality II is in heavy to medium contamination rate. The potential domestic contamination load in the river was found high reaching up to 203562.89 kg/day, 275814.4 kg/day and 190562.7 kg/day for BOD, COD and TSS values respectively. The contamination load was suggested to come from the domestice household wastes.