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1. When is ONWASA's Operations Center open?
2. Where are ONWASA offices?
3. Where can I mail my bill?

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1. What is backflow?
2. How does ONWASA protect the public water system against Backflow contamination?
3. Why do I have to install a blackflow assembly if my neighbors do not have them?
4. How can I tell if water/sewer service is available to my property?
5. If I don't have direct access to a water or sewer main, will ONWASA extend a water and/or sewer main to my property?
6. Why are there blue or green marks and/or flags in my yard?

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1. When are checks written for payments of invoices and deposit refunds?
2. How do I get information about an invoice or payment on an invoice?

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1. How can I tell if I have a water leak?

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1. How can I find out when my water or wastewater service might be interrupted?
2. Why is a boil water advisory issued?
3. What if I see something suspicious?

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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?