Revelation 16:4

And the third poured out his bowl into the rivers and springs of waters; and they were turned into blood.

Revelation 8:10-11

And the third angel blew his trumpet, and there fell from heaven a great star, blazing like a torch. It fell upon a third of the rivers and upon the springs. (The name of the star is called Wormwood.)

Revelation 14:7

And he cried with a loud voice. "Fear God and give him glory, Because the hour of his judgment is come. And worship Him who made the heavens and the earth And the sea and springs of waters."

Revelation 16:5

And I heard the angel of the waters saying. "Righteous art thou, thou who art and wast, The Holy One, Because thou didst inflict this judgment.

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 blew his trumpet, and there fell from heaven a great star, blazing like a torch. It fell upon a third of the rivers and upon the springs. (The name of the star is called Wormwood.)