The availability of clean water in Indonesia is disrupted as a result of the pollution of the source of water reservoir, which is the river. Based on data from the Directorate General of Pollution Control and Ministry of Environment and Forestry (2015), rivers in Indonesia have been polluted by heavy metals up to 68 percent. Not only in Java, the problem of water pollution by heavy metals also occurs in several rivers on the island of Sumatra, including the Deli River and the Bengkulu River. This is certainly dangerous for both people who consume water and biota living in the river.