Groundwater–surface water interactions of Ciliwung River streams, segment Bogor–Jakarta, Indonesia

Here took some groundwater level data from dug-wells in the riverbank of Ciliwung River from Bogor (Katulampa Check Point) to Jakarta (up to Ancol). We compared the groundwater level with river water level to identify if the groundwater went in to the river of vice versa. Three kinds of interactions were found, it was gaining stream in upstream, losing stream in the downstream, and mixed between both systems in the middle part of the river stream. We also checked the water quality in both water bodies and found a very close interaction between both.