Abstract: This research aims to determine the quality of water in urban cities in Indonesia, such as Jakarta, Bogor, and Bekasi. Sampling method in this research is using random sampling by collecting the sample at several places. The parameters tested are a physical analysis such as temperature and EC (Electrical Conductivity). The result shown that a) the clean water and laundry water has temperature in the range of 30C 32C, b) EC value of clean water is in the range of 130 - 250 S/cm and EC value of laundry water is in the range of 310 - 440 S/cm. Clean water is still safe for use in daily activities and laundry water is still safe to be thrown into the environment.
Keywords: Water quality, laundry water, Jakarta, Bogor, Bekasi