How do I know my water is safe to drink?
Potable water from both the water treatment plants and the well field is treated with chlorine for disinfection purposes and these levels are monitored daily. ONWASA also performs daily, weekly, monthly and yearly sampling according to State and Federal rules to ensure the water meets Safe Drinking Water Standards.

We also rely on you the customer to report any water quality issues you may experience at your home. For a full list of water quality sampling ONWASA conducts please view EPA’s Drinking Water Watch.

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1. How do I know my water is safe to drink?
2. Why do I see staff opening fire hydrants and wasting water?
3. What is the Fluoride content of my water?
4. Why do you add chlorine to my water?
5. What is the hardness of my water?
6. What causes the brown of yellow tinge in my water at times?
7. Will ONWASA sample my water for contaminates?