Water utilities are assessed on financial, customer service, operational, and HR performance, according to Government Regulation 122/2015. Environmental, operational, and physical factors impact cooling system performance. Local governments and water utilities assess water supply efficiency using distribution networks. In West Nusa Tenggara, researchers explored Lombok and Sumbawa. Water is abundant in Lombok but insufficient in Sumbawa. Despite the continual requirement for drinking water, this study concentrates on these two criteria since regional climates fluctuate. The former has superior local government water supplies, which affect Lombok and Sumbawa citizens’ health. This research outlines a single drinking water system’s two most important performance criteria. Researchers employ fuzzy c-means clustering, statistical regressive analysis, and questionnaire combinations for indeterminate parameters. The survey concluded that a water distribution authority has a good performance value if its intake and distribution network works effectively and the negative balance decreases. PDAM control will be less effective and the body less healthy if one portion fails, especially if fluctuations of water discharge. This research may result from an integrated drinking water collection and distribution performance model. The study found that water treatment plant performance, especially water discharge, increases water usage.