“…For example, in their essay, Deekshit and Sumbre (this issue) show how access to water is denied through the political and legal production of ambiguity in Mumbai, emerging out of the same High Court order that insists that water be made available to all. Also in Mumbai, ambiguity around the material and legal status of the Mithi River, as described by Kamath and Tiwari (2022, this issue), is a necessary condition for the production of ambivalence; what they describe as the alternately weak and strong government of its flows (see also Burte and Kamath, 2017). And in Philadelphia, ambiguity around what precisely is safe water is key to both the possibility of data deserts around the lower Schuylkill River (Wiggin, 2022, this issue) and also the reproduction of harm visited by its lead water lines (Bhatia, this issue).…”