<![CDATA[The increasing population density in Dusun Sukunan RW 19, Sleman Regency, triggers sanitation problems if not properly planned and managed. Furthermore, land limitations contribute to the growing need for sustainable management. Communal Wastewater Treatment Plants (Communal WWTPs) is a community-based sanitation infrastructure whose success involves both technical and non-technical factors, particularly the aspects of utilization, maintenance, and financing. This study aims to examine the existing conditions of utilization and to analyze community participation in the aspects of utilization, maintenance, and financing on the performance of Communal WWTPs. A descriptive quantitative approach was employed based on field surveys, with data collected through questionnaires and structured interviews involving 38 Communal WWTPs users selected using purposive sampling technique. Data were analyzed using descriptive statistics to describe the level of community participation across the aspects of utilization, maintenance, and operational costs. The results indicate that: (1) utilization of the Communal WWTPs remains uneven due to topographic constraints, land limitations, and social conflicts; (2) the maintenance aspect remains weak, as evidenced by the uneven adoption of floor drains and unresolved damage to the Rotating Biological Contactor (RBC) unit; and (3) the existing financing structure is insufficient to sustain operational needs, as contributions are allocated solely for electricity costs. It is therefore concluded that maintenance, financing, and community perception collectively influence the performance of the Communal IPAL. Strengthening institutional capacity, revising the contribution structure, and enhancing sanitation education for the community are the primary recommendations of this study.]]>
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