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EWG's Tap Water Database — 2019 UPDATE

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Fluoride

Warren County Socialville PWS

NOTE: Warren County Socialville PWS purchases water from Cincinnati Public Water System which is required to test for fluoride. Sample information shown below was taken by Cincinnati Public Water System.

Fluoride occurs naturally in surface and groundwater and is also added to drinking water by many water systems. Read More.

Fluoride has been promoted as a chemical that reduces dental cavities. Yet it is now well-established that fluoride primarily exerts its protective effects through topical mechanisms, such as sodium fluoride in toothpaste and mouthwash. In contrast, long-term ingestion of fluoride in water increases dental fluorosis, which includes mottling, pitting and weakening of the teeth. EPA's maximum legal limit is set at 4 parts per million (ppm) to prevent skeletal fluorosis, a condition where bones become brittle and more susceptible to fractures, although these effects may occur at lower doses.

Even fluoride levels of 0.7 ppm, the amount of fluoride in drinking water recommended by the U.S. Public Health Service, can result in too much fluoride for bottle-fed babies. EWG recommends that caregivers mix baby formula with fluoride-free water. The National Toxicology Program is investigating the potential for low doses of fluoride to alter thyroid function and childhood brain development.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.865 ppm220.850 ppm - 0.880 ppm
20130.870 ppm220.810 ppm - 0.930 ppm
20140.935 ppm220.910 ppm - 0.960 ppm
20150.940 ppm220.900 ppm - 0.980 ppm
20160.855 ppm220.820 ppm - 0.890 ppm
20170.795 ppm220.790 ppm - 0.800 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 4 ppm

ppm = parts per million

All test results

NOTE: Warren County Socialville PWS purchases water from Cincinnati Public Water System which is required to test for fluoride. Sample information shown below was taken by Cincinnati Public Water System.

Date Lab ID Result
2012-01-03120030.850 ppm
2012-01-041120040.880 ppm
2013-01-282013EP002-0100.930 ppm
2013-01-312013EP01-0010.810 ppm
2014-01-2220140010110.960 ppm
2014-01-2220140020010.910 ppm
2015-01-28COMPCMB2015-0010.900 ppm
2015-01-28COMPMTP2015-0010.980 ppm
2016-01-27102772740.820 ppm
2016-04-261021161170.890 ppm
2017-02-0220170010010.800 ppm
2017-02-0220170020010.790 ppm