No, it cannot. The Zaporizhzhya nuclear power plant can be cooled even if the water in the Kakhovka reservoir disappears beyond reach. The cooling water needed by the plant is normally taken directly from the reservoir, but the plant is prepared for the possibility that it will not be available. The cooling water required is then taken from a large pool built next to the nuclear power plant. The last of the plant's six reactors stopped generating electricity in autumn 2022, meaning that all reactors have been shut down. This means that considerably less water is needed for cooling than would be required if the reactors were normally generating electricity. The water in the water pool is sufficient.