ABSTRACT The Community-Based Water Supply and Sanitation Program (PAMSIMAS) is a government initiative to improve access to clean water in rural areas. This study aims to evaluate the clean water distribution network system of the PAMSIMAS program in Keranji Guguh Village, Koto Gasib Subdistrict, Siak Regency, using EPANET 2.2 software. The evaluation was conducted for both existing conditions…