Water: Frequently Brackish and Unfit for Use
Source: TTT
Exodus 15:23
And when they came to Marah, they could not drink the water there because it was bitter. (That is why it was named Marah.)
2 Kings 2:19
Then the men of the city said to Elisha, “Please note, our lord, that the city’s location is good, as you can see. But the water is bad and the land is unfruitful.”