In February, water levels were so low that many feared a meltdown at the Zaporizhzhia nuclear plant, whose cooling systems are supplied with water from the Kakhovka reservoir held up by the dam.

Source: https://abc11.com/dam-in-ukraine-nova-kakhovka-war-news/13349602/

The island neighborhood was one residential area in the direct slipstream of Tuesday's catastrophe, which experts said was expected to play out over days as pent-up waters from the Kakhovka reservoir wash their way unhindered toward the Black Sea.

Source: https://www.euronews.com/2023/06/07/thousands-of-ukrainians-flee-rising-flood-waters-after-dam-destruction

The water from the Kakhovka reservoir is flowing toward the city of Kherson.

Source: https://londonlovesbusiness.com/hydroelectric-dam-which-supplies-water-to-europes-largest-nuclear-power-plant-blown-up-with-warnings-of-catastrophic-consequences/