Peat water is surface water which is often found in peatland or lowland areas, especially on the islands of Borneo and Sumatra. An analysis of the quality of peat water has been carried out using the slow sand filtering method around the Uin Suska Riau Campus in Pekanbaru City. Test samples were taken at 10 different points. Outputs from measurements are conductivity, pH and TDS, Fe and Mn valu…