Local water systems are essential infrastructures that characterize people’s lives and livelihoods and the landscapes in their respective regions. This study focuses on Torimizu (i.e., traditional waterworks) still in use in Kuraji, Katano City, Osaka Prefecture, Japan. It describes the history of Torimizu, including their construction, the establishment of a water supply association, and the current usages based on a survey of its users. The primary waterworks facilities of Torimizu made of bamboo and pine wood were built and maintained by the users. Torimizu are still in use, but many related waterworks facilities have been modernized. As modern land development around such water resources have progressed, the users of Torimizu established an association to advocate for its preservation. Because the users of Torimizu have equipped their homes with certain modern devices or devised efficient methods of using them, the Torimizu sources have been used in place of or in parallel to modern waterworks. However, the users who think the water quality of Torimizu insufficient use it for limited purposes.