How does testing water help us?

Testing water is an extremely helpful tool to human beings. Testing water can help us find out what is polluting, and therefore damaging our water supply; this pertains to the contaminated water in Riverwood, causing the Riverwood population's water shortage. Testing water helps to provide data and understanding as to what is and what is not in a body or supply of water, and therefore helps us to prevent and control the spread of contaminants in water that can result in famine, death, and water shortages. By knowing what is in the water through water testing, people can oversee and change the condition of water and make it better and safer to use.