Underground water is a problem in various big cities, including Pekanbaru City. Kecamatan Tampan as one of the most populous sub-districts in Pekanbaru has an arithmetic density of 5,148 people / km2 in 2018. This figure has increased by 6.96 percent from the previous year (Central Bureau of Statistics, 2019). The population growth rate of Kecamatan Tampan has caused the need for water reso…