It depends where it is.
The mountain stream is unpolluted, providing clean and fresh drinking water for the nearby community.
If water is unpolluted, fish thrive in it.
Unpolluted! Or not polluted. Or clean. Or pure.
Switzerland is a very green and clean and unpolluted country.
5.6
5.6
CO2
Pure water has a ph of 7.
The opposite would be uncorrupted, unpolluted, unblemished, clean, or sinless.
dont pee in it
To keep it clean.
The Great Lakes are a valuable resource for the people living around them. All fresh water resources need to be kept unpolluted and clean. People fish, boat, swim, camp, and live around the water in the lakes and pollution kills animals, people, and bird/ water life.