What is the ruling on treated sewage water?

Question:
This questioner says: We have treated sewage water in our hospital, and we are exposed to this water in many places due to the watering of gardens. We may even be exposed to its spray. Is this water ritually impure, invalidating the ablution? And is it permissible to eat the fruits of the trees watered with it, or not? Please inform us, may Allah reward you with good.

Answer:
If this water has been treated until the smell, taste, and color of the impurity have disappeared, and it has become sweet, good, and sound water; then there is no blame in that, and it has the ruling of purity. What affects people from it does not harm them, and the trees watered with it are not harmed, and there is nothing wrong with their fruits.
However, if the traces of impurity remain in it, it should not be used, neither for the trees nor for anything else. Rather, it should be removed to another place that does not harm the Muslims.
However, if it has been fully treated and the traces of impurity have disappeared from it, neither in color, nor taste, nor smell, then praise be to Allah.