ABSTRACT Pekanbaru as the capital of Riau Province with a population of 954,373 people (BPS, 2020). It is projected that this number will continue to increase every year by around 3-4% as a logical consequence of increasing consumption of clean water needs in Pekanbaru City. The Regional Drinking Water Company (PDAM) Tirta Siak Pekanbaru City is one of the companies engaged in the public …