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EWG's Tap Water Database — 2019 UPDATE

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Fluoride

NJ American Water - Western

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.

 

72

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
20140.198 ppm3025ND - 0.400 ppm
2015ND20ND
20160.0950 ppm42ND - 0.200 ppm
20170.281 ppm3224ND - 0.630 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
2012-01-1215777201ND
2012-09-20L4330754-1ND
2013-01-0920691301ND
2013-10-22L4805051-1ND
2014-01-0824566301ND
2014-04-0425402001ND
2014-04-0425405501ND
2014-06-1225403101ND
2014-06-12L5106514-40.0945 ppm
2014-06-12254004010.220 ppm
2014-06-12L5106514-30.187 ppm
2014-06-12253992010.180 ppm
2014-06-12L5106514-60.371 ppm
2014-06-12254002010.370 ppm
2014-06-12L5106514-50.206 ppm
2014-06-12258018010.190 ppm
2014-06-12L5106514-10.224 ppm
2014-06-12L5106514-20.0837 ppm
2014-06-30L5127619-10.0568 ppm
2014-06-30258010010.330 ppm
2014-06-3025798301ND
2014-06-30L5127619-30.320 ppm
2014-06-30L5127619-20.307 ppm
2014-07-08L5148621-30.316 ppm
2014-07-24254023010.310 ppm
2014-07-29258014010.280 ppm
2014-07-29254033010.400 ppm
2014-07-29254026010.300 ppm
2014-07-30L5178844-20.270 ppm
2014-07-30L5178844-30.398 ppm
2014-08-12L5206215-10.0460 ppm
2014-08-20L5210769-20.211 ppm
2014-08-20262072010.190 ppm
2014-09-22L5255129-10.0652 ppm
2015-01-1227863701ND
2015-09-29L5832866-2ND
2016-01-0431135401ND
2016-01-21L6025921-1ND
2016-08-08330982010.200 ppm
2016-08-11L6419555-10.180 ppm
2017-01-0534460001ND
2017-04-13353550010.320 ppm
2017-04-13353560010.360 ppm
2017-04-13353552010.250 ppm
2017-06-2335354601ND
2017-06-23359864010.200 ppm
2017-06-2335355801ND
2017-06-26353492010.180 ppm
2017-06-27359913010.290 ppm
2017-06-27353527010.330 ppm
2017-06-27365336010.330 ppm
2017-06-2735990201ND
2017-07-25365277010.200 ppm
2017-07-25353529010.230 ppm
2017-08-29L6943905-2ND
2017-08-29L6943905-60.490 ppm
2017-08-29L6943905-10.470 ppm
2017-08-29L6943905-40.550 ppm
2017-08-29L6943905-30.570 ppm
2017-08-29L6943905-50.560 ppm
2017-08-30L6944262-4ND
2017-08-30L6944262-10.550 ppm
2017-08-3037194801ND
2017-08-30L6944262-20.630 ppm
2017-08-30L6944262-30.440 ppm
2017-08-30371942010.180 ppm
2017-09-14L6951963-40.490 ppm
2017-09-14L6951963-60.260 ppm
2017-09-14L6951963-30.430 ppm
2017-09-14L6951963-2ND
2017-09-14L6951963-10.330 ppm
2017-09-14L6951963-50.360 ppm