Analysis of Transmission and Distribution System of PDAM Tirta Perwitasari in Kutoarjo Region

Rapid urban development necessitates a reliable and robust drinking water supply, a vital service managed by Perumda Air Minum Tirta Perwitasari in Purworejo Regency. This Field Work Report aims to comprehensively analyze the existing drinking water transmission and distribution system, as well as the service provision, in the Kutoarjo operational area. The research employed a multi-method approach, integrating field observation, staff interviews, and literature study to gather operational and infrastructural data. Hydraulic modeling was performed using the EPANET 2.0 software to simulate network performance, with all results compared against the quality and pressure standards stipulated in the Minister of Public Works and Public Housing (PUPR) Regulation Number 27 of 2016. The analysis identified key areas requiring attention. The Kutoarjo service area currently achieves only a 42% coverage rate, indicating a need for significant expansion. Furthermore, the system is challenged by a high monthly Non-Revenue Water (NRW) rate, reported at approximately 30%. The hydraulic assessment confirmed that, generally, the water pressure and flow velocity across the network meet the required standards. Critically, however, several nodes within the distribution system recorded pressures dangerously close to the minimum legal limit. This highlights a specific vulnerability in system reliability. The report concludes with detailed recommendations focused on strategic infrastructure planning, pressure management optimization, and reducing water loss to enhance overall service efficiency and coverage.