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• If a water system is reporting problems with corrosion from evaporating hydrogen fluoride (i.e., the glass in
the facility has become “frosted”), there is a leak in the piping. The storage tank and other locations in
the feed system may not be sealed or correctly vented. All fluoride products storage, handling, and feed
systems should be vented to the outside of the building, and the system and piping should be pressure tested
(low pressure is sufficient) to identify possible leaks which should be promptly corrected. With no system leaks,
there will be no corrosion problems.
• All state requirements, as well as Ten States Standards, require storage of ALL additives be separate from
other additives used in the facility. It is important to keep different materials separated, as there is the
potential to react with each other.
• The CDC offers a free, online training course for Water Operators to learn more about
Fluoridation at www.cdc.gov/fluoridation-engineering/trainings/index.html.
More questions? Check out ADA’s Fluoridation Facts, or contact Dr. Elizabeth Lense at lensee@ada.org.
References:
1 U.S. Centers for Disease Control and Prevention (CDC). 2024. About Oral Health. www.cdc.gov/oral-health/about/index.html.
2 CDC. 2024. Fluoridation Engineering and Operations. www.cdc.gov/fluoridation-engineering/?CDC_AAref_Val=https://www.cdc.gov/
fluoridation/engineering/index.htm.
3 American Academy of Pediatrics. 2024. Helpful Information for Water Operators. ilikemyteeth.org/waterops.
4 American Water Works Association. 2016. M4 Water Fluoridation Principles &Practices, 6th Ed. www.awwa.org/portals/0/files/
publications/documents/m4lookinside.pdf.
5 CDC. 2024. 2020 Water Fluoridation Statistics. www.cdc.gov/fluoridation/php/statistics/2020-water-fluoridation-statistics.html.
• If a water system is reporting problems with corrosion from evaporating hydrogen fluoride (i.e., the glass in
the facility has become “frosted”), there is a leak in the piping. The storage tank and other locations in
the feed system may not be sealed or correctly vented. All fluoride products storage, handling, and feed
systems should be vented to the outside of the building, and the system and piping should be pressure tested
(low pressure is sufficient) to identify possible leaks which should be promptly corrected. With no system leaks,
there will be no corrosion problems.
• All state requirements, as well as Ten States Standards, require storage of ALL additives be separate from
other additives used in the facility. It is important to keep different materials separated, as there is the
potential to react with each other.
• The CDC offers a free, online training course for Water Operators to learn more about
Fluoridation at www.cdc.gov/fluoridation-engineering/trainings/index.html.
More questions? Check out ADA’s Fluoridation Facts, or contact Dr. Elizabeth Lense at lensee@ada.org.
References:
1 U.S. Centers for Disease Control and Prevention (CDC). 2024. About Oral Health. www.cdc.gov/oral-health/about/index.html.
2 CDC. 2024. Fluoridation Engineering and Operations. www.cdc.gov/fluoridation-engineering/?CDC_AAref_Val=https://www.cdc.gov/
fluoridation/engineering/index.htm.
3 American Academy of Pediatrics. 2024. Helpful Information for Water Operators. ilikemyteeth.org/waterops.
4 American Water Works Association. 2016. M4 Water Fluoridation Principles &Practices, 6th Ed. www.awwa.org/portals/0/files/
publications/documents/m4lookinside.pdf.
5 CDC. 2024. 2020 Water Fluoridation Statistics. www.cdc.gov/fluoridation/php/statistics/2020-water-fluoridation-statistics.html.
