Revelation 16:4

And the third poured out his bowl on the rivers and the fountains of waters; and they became blood.

Revelation 8:10-11

And the third angel sounded; and there fell from heaven a great star, burning like a lamp, and it fell on a third part of the rivers and on the fountains of waters.

Revelation 14:7

saying with a loud voice, Fear God and give him glory, for the hour of his judgment has come, and worship him that made heaven and the earth and the sea and fountains of waters.

Revelation 16:5

And I heard the angel of the waters say, Thou art just, the Is and the Was, [the] Holy One, because thou hast judged thus,

Treasury of Scripture Knowledge

Summary

And the third angel poured out his vial upon the rivers and fountains of waters; and they became blood.

Bible References

Upon

Revelation 8:10
And the third angel sounded; and there fell from heaven a great star, burning like a lamp, and it fell on a third part of the rivers and on the fountains of waters.