How can I tell if I am in an area receiving fluoride?
Some areas in our northern area are not fluoridated because we share a tank with Northeast Sammamish Sewer and Water District and they do not fluoridate their water supply. You can also contact the District Customer Service Department at 425-392-6256 with your address and/or account number and we will let you know if your water is fluoridated.Fluoridation Zones Map (PDF)

Show All Answers

1. What is fluoride?
2. Why do water providers add fluoride to their water supply?
3. How is fluoride added to the water supply?
4. How can I tell if I am in an area receiving fluoride?
5. Why are some areas of the District not fluoridated?
6. What if I don't want fluoride in my water?
7. Will the District reimburse me for costs I expend to install treatment devices to remove fluoride?
8. My dental care or health care provider has been giving our family fluoride supplements. Should I continue or stop using these supplements?
9. Where can I find more information about fluoridation?