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HIPPAM (Association of Drinking Water User Populations) must be able to supply 60 liters water/ person / day, meets water quality standards, flow water 24 hours, and set water tariffs afford. The research objectives are: (1) finding the main factors contributing to the sustainability of drinking water supply by rural community and (2) analyzing the structural model of drinking water supply by rural community . Research methods are surveys, observations and interviews. The variables studied were social, economic, technology, ecology of water sources, water supply performance, HIPPAM institutions, and HIPPAM sustainability. Respondents were HIPPAM members in the villages of Gubugklakah, Poncokusumo and Wonomulya, Poncokusumo sub-district, Malang Regency, East Java. Data analysis using SEM-PLS with WarpPLS program. Data analysis shows that: (1) social, technological, and ecological of water sources factors have a direct effect on water supply performance factor; (2) social, technological, ecological of water resources, and water supply performance factors directly influence HIPPAM institutional factor; (3) economic, ecological water source, and institutional factors directly influence the HIPPAM sustainability factor; (4) water supply performance and HIPPAM institutions factor mediate the indirect effect of social and technological factors on HIPPAM sustainability factor; (5) HIPPAM institutional factor mediate the indirect effect of water supply performance on HIPPAM sustainability factor; (6) social factors contribute the greatest total effect to water supply performance factor and HIPPAM institution; and (7) ecological of water sources factor provide the greatest total effect on SPAM sustainability factor. The conclusions of the study, namely: (1) the main factor that contributed the greatest total effect on the sustainability of drinking water supply by rural community, was the ecology of water sources, and (2) economic factors, ecology of water sources, and institutional HIPPAM had a significant direct effect on HIPPAM sustainability factors. Social, technological, and water supply performance factors have a significant indirect effect on HIPPAM sustainability factor.