In early 2018, the City of Cape Town (CoCT) was on the verge of running out of water. A combination of low rainfall resulting in falling dam water storage, farming/industry needs, and a population growth that exerted pressure on the existing water system created a doomsday scenario dubbed “Day Zero”—the day the city would be without water. Through a set of actions orchestrated by city government and the residents of Cape Town, Day Zero was averted (see Walwema, 2021; Shepherd, 2019; Borofsky, 2019). This set of innovative measures motivated households and businesses to dramatically reduce high water use. However, the City of Cape Town understood that its fate could not rest in those apocalyptic measures alone. It followed up on those measures with extensive and ongoing discussions between city officials and the public to achieve a secure water future. This chapter examines the resulting policy documents and the contexts from which they emerged to understand the role of technical communication in environmental public policy.