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EWG's Tap Water Database — 2019 UPDATE

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Fluoride

NJ American Water - Atlantic County

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.

 

64

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013N/A00N/A
20140.0340 ppm309ND - 0.160 ppm
2015N/A00N/A
2016ND20ND
20170.00767 ppm302ND - 0.120 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

Date Lab ID Result
2012-07-2517998701ND
2012-07-259979832001ND
2014-01-1424542101ND
2014-01-1410674210010.160 ppm
2014-01-1424542501ND
2014-01-1410674250010.0600 ppm
2014-01-1424543101ND
2014-01-1410674230010.140 ppm
2014-01-141067419001ND
2014-01-14245436010.1000 ppm
2014-03-1124927801ND
2014-03-1110756460010.0800 ppm
2014-03-1110756450010.1000 ppm
2014-03-111075643001ND
2014-03-1924928401ND
2014-03-2124927501ND
2014-04-1425375901ND
2014-04-1725376201ND
2014-04-222003167001ND
2014-04-2220031680010.140 ppm
2014-05-1225375301ND
2014-05-1925489901ND
2014-05-272009123001ND
2014-05-272009124001ND
2014-05-272009125001ND
2014-06-2325375501ND
2014-06-2525759401ND
2014-06-302015280001ND
2014-06-3025757401ND
2014-06-3020152790010.0800 ppm
2014-09-0920283090010.160 ppm
2014-10-0327212701ND
2016-07-1216-4228ND
2016-07-1232520701ND
2017-01-1617-0307.4ND
2017-01-1634425401ND
2017-01-16344268010.110 ppm
2017-01-1617-0307.1ND
2017-01-1634426401ND
2017-01-1617-0307.2ND
2017-01-1617-0307.3ND
2017-01-1634425801ND
2017-03-0335000601ND
2017-03-0717-1402ND
2017-03-0735001001ND
2017-03-0717-1403ND
2017-03-2035001401ND
2017-03-2017-1721.1ND
2017-04-0517-2001.1ND
2017-04-05353161010.120 ppm
2017-04-1735315801ND
2017-04-1717-2239.2ND
2017-04-1717-2239.1ND
2017-04-1735317601ND
2017-05-2417-3289ND
2017-05-2435581901ND
2017-06-0935982401ND
2017-06-1417-3918.2ND
2017-06-1435983101ND
2017-06-1417-3918.3ND
2017-06-1435983501ND
2017-06-1417-3918.1ND
2017-07-3117-5281.1ND
2017-07-3135979301ND