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EWG's Tap Water Database — 2019 UPDATE

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Fluoride

Moore County Public Util. - Pinehurst

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.

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND170ND
2014N/A00N/A
2015N/A00N/A
2016ND220ND
2017N/A00N/A

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

Date Lab ID Result
2012-01-2437729_12-01989ND
2012-08-3037729_12-24130ND
2012-11-1937729_12-32870ND
2013-03-1237729_13-07131ND
2013-03-1337729_13-07118ND
2013-03-1337729_13-07130ND
2013-03-1337729_13-07129ND
2013-03-1337729_13-07128ND
2013-03-1337729_13-07127ND
2013-03-1337729_13-07126ND
2013-03-1337729_13-07125ND
2013-03-1337729_13-07124ND
2013-03-1337729_13-07123ND
2013-03-1337729_13-07122ND
2013-03-1337729_13-07121ND
2013-03-1337729_13-07120ND
2013-03-1337729_13-07119ND
2013-03-1937729_13-07723ND
2013-05-1437729_13-13225ND
2013-06-3037729_13-18555ND
2016-04-1337729_16-11551ND
2016-04-1337729_16-11550ND
2016-04-1337729_16-11549ND
2016-04-1337729_16-11548ND
2016-04-1337729_16-11547ND
2016-04-1337729_16-11546ND
2016-04-1337729_16-11545ND
2016-05-0237729_16-13925ND
2016-05-0237729_16-13926ND
2016-05-0237729_16-13927ND
2016-05-0237729_16-13928ND
2016-05-0237729_16-13929ND
2016-05-0237729_16-13930ND
2016-05-0237729_16-13924ND
2016-05-0237729_16-13923ND
2016-05-0237729_16-13922ND
2016-05-0237729_16-13921ND
2016-05-0237729_16-13920ND
2016-05-0237729_16-13919ND
2016-05-0437729_16-13918ND
2016-05-0437729_16-13915ND
2016-11-1537729_16-40026ND