Fluoride
Bloomfield, Village Of
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.851 ppm | 26 | 26 | 0.661 ppm - 0.948 ppm |
| 2015 | 0.830 ppm | 24 | 24 | 0.657 ppm - 0.990 ppm |
| 2016 | 0.673 ppm | 24 | 24 | 0.610 ppm - 0.760 ppm |
| 2017 | 0.649 ppm | 26 | 26 | 0.590 ppm - 0.760 ppm |
| 2018 | 0.659 ppm | 24 | 24 | 0.589 ppm - 0.750 ppm |
| 2019 | 0.689 ppm | 24 | 24 | 0.600 ppm - 0.830 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 |
|---|---|---|
| 2014-01-07 | 115153001 | 0.870 ppm |
| 2014-01-07 | 115153001 | 0.948 ppm |
| 2014-02-04 | 118683001 | 0.870 ppm |
| 2014-02-04 | 118683001 | 0.938 ppm |
| 2014-03-03 | 121335001 | 0.870 ppm |
| 2014-03-03 | 121335001 | 0.871 ppm |
| 2014-04-01 | 125519001 | 0.781 ppm |
| 2014-04-01 | 125519001 | 0.900 ppm |
| 2014-04-08 | 127181001 | 0.661 ppm |
| 2014-04-16 | 128195001 | 0.833 ppm |
| 2014-05-05 | 130390001 | 0.789 ppm |
| 2014-05-05 | 130390001 | 0.820 ppm |
| 2014-06-02 | 136202001 | 0.787 ppm |
| 2014-06-02 | 136202001 | 0.870 ppm |
| 2014-07-01 | 142540001 | 0.843 ppm |
| 2014-07-01 | 142540001 | 0.850 ppm |
| 2014-08-04 | 148962001 | 0.830 ppm |
| 2014-08-04 | 148962001 | 0.881 ppm |
| 2014-09-08 | 155536001 | 0.837 ppm |
| 2014-09-08 | 155536001 | 0.840 ppm |
| 2014-10-01 | 161021001 | 0.859 ppm |
| 2014-10-01 | 161021001 | 0.860 ppm |
| 2014-11-03 | 166481001 | 0.869 ppm |
| 2014-11-03 | 166481001 | 0.880 ppm |
| 2014-12-01 | 170314001 | 0.880 ppm |
| 2014-12-01 | 170314001 | 0.900 ppm |
| 2015-01-05 | 174458001 | 0.850 ppm |
| 2015-01-05 | 174458001 | 0.860 ppm |
| 2015-02-03 | 178148001 | 0.800 ppm |
| 2015-02-03 | 178148001 | 0.817 ppm |
| 2015-03-02 | 181753001 | 0.806 ppm |
| 2015-03-02 | 181753001 | 0.830 ppm |
| 2015-04-06 | 186430001 | 0.887 ppm |
| 2015-04-06 | 186430001 | 0.940 ppm |
| 2015-05-04 | 190998001 | 0.931 ppm |
| 2015-05-04 | 190998001 | 0.990 ppm |
| 2015-06-01 | 197038001 | 0.936 ppm |
| 2015-06-01 | 197038001 | 0.970 ppm |
| 2015-07-06 | 204286001 | 0.896 ppm |
| 2015-07-06 | 204286001 | 0.960 ppm |
| 2015-08-03 | 209196001 | 0.904 ppm |
| 2015-08-03 | 209196001 | 0.950 ppm |
| 2015-09-01 | 214940001 | 0.670 ppm |
| 2015-09-01 | 214940001 | 0.784 ppm |
| 2015-10-05 | 221898001 | 0.657 ppm |
| 2015-10-05 | 221898001 | 0.670 ppm |
| 2015-11-03 | 226978001 | 0.691 ppm |
| 2015-11-03 | 226978001 | 0.760 ppm |
| 2015-12-02 | 231022001 | 0.670 ppm |
| 2015-12-02 | 231022001 | 0.692 ppm |
| 2016-01-04 | 234391001 | 0.673 ppm |
| 2016-01-04 | 234391001 | 0.720 ppm |
| 2016-02-02 | 238281001 | 0.615 ppm |
| 2016-02-02 | 238281001 | 0.630 ppm |
| 2016-03-01 | 241873001 | 0.621 ppm |
| 2016-03-01 | 241873001 | 0.670 ppm |
| 2016-04-04 | 247323001 | 0.760 ppm |
| 2016-04-04 | 247323001 | 0.760 ppm |
| 2016-05-02 | 251996001 | 0.669 ppm |
| 2016-05-02 | 251996001 | 0.730 ppm |
| 2016-06-01 | 257687001 | 0.661 ppm |
| 2016-06-01 | 257687001 | 0.670 ppm |
| 2016-07-05 | 263856001 | 0.690 ppm |
| 2016-07-05 | 263856001 | 0.708 ppm |
| 2016-08-01 | 269359001 | 0.680 ppm |
| 2016-08-01 | 269359001 | 0.690 ppm |
| 2016-09-06 | 276304001 | 0.610 ppm |
| 2016-09-06 | 276304001 | 0.670 ppm |
| 2016-10-17 | 284490001 | 0.618 ppm |
| 2016-10-17 | 284490001 | 0.690 ppm |
| 2016-11-01 | 286970001 | 0.621 ppm |
| 2016-11-01 | 286970001 | 0.690 ppm |
| 2016-12-05 | 291832001 | 0.645 ppm |
| 2016-12-05 | 291832001 | 0.670 ppm |
| 2017-01-09 | 295746001 | 0.614 ppm |
| 2017-01-09 | 295746001 | 0.640 ppm |
| 2017-02-08 | 299373001 | 0.668 ppm |
| 2017-02-08 | 299373001 | 0.760 ppm |
| 2017-03-01 | 302027001 | 0.606 ppm |
| 2017-03-01 | 302027001 | 0.660 ppm |
| 2017-04-03 | 308000001 | 0.676 ppm |
| 2017-04-03 | 308000001 | 0.690 ppm |
| 2017-04-26 | 985387 | 0.590 ppm |
| 2017-05-01 | 313110001 | 0.622 ppm |
| 2017-05-01 | 313110001 | 0.630 ppm |
| 2017-05-08 | 987168 | 0.600 ppm |
| 2017-06-05 | 319780001 | 0.609 ppm |
| 2017-06-05 | 319780001 | 0.690 ppm |
| 2017-07-03 | 325750001 | 0.596 ppm |
| 2017-07-03 | 325750001 | 0.700 ppm |
| 2017-08-01 | 333155001 | 0.593 ppm |
| 2017-08-01 | 333155001 | 0.720 ppm |
| 2017-09-06 | 340496001 | 0.663 ppm |
| 2017-09-06 | 340496001 | 0.760 ppm |
| 2017-10-04 | 347158001 | 0.633 ppm |
| 2017-10-04 | 347158001 | 0.640 ppm |
| 2017-11-01 | 352078001 | 0.613 ppm |
| 2017-11-01 | 352078001 | 0.620 ppm |
| 2017-12-06 | 358234001 | 0.611 ppm |
| 2017-12-06 | 358234001 | 0.680 ppm |
| 2018-01-09 | 362576001 | 0.665 ppm |
| 2018-01-09 | 362576001 | 0.680 ppm |
| 2018-02-07 | 366087001 | 0.670 ppm |
| 2018-02-07 | 366087001 | 0.676 ppm |
| 2018-03-06 | 369778001 | 0.681 ppm |
| 2018-03-06 | 369778001 | 0.700 ppm |
| 2018-04-09 | 375830001 | 0.618 ppm |
| 2018-04-09 | 375830001 | 0.650 ppm |
| 2018-05-02 | 379939001 | 0.700 ppm |
| 2018-05-02 | 379939001 | 0.706 ppm |
| 2018-06-06 | 387216001 | 0.614 ppm |
| 2018-06-06 | 387216001 | 0.620 ppm |
| 2018-07-02 | 392182001 | 0.646 ppm |
| 2018-07-02 | 392182001 | 0.650 ppm |
| 2018-08-08 | 400078001 | 0.630 ppm |
| 2018-08-08 | 400078001 | 0.655 ppm |
| 2018-09-05 | 405700001 | 0.649 ppm |
| 2018-09-05 | 405700001 | 0.710 ppm |
| 2018-10-02 | 412253001 | 0.660 ppm |
| 2018-10-02 | 412253001 | 0.660 ppm |
| 2018-11-06 | 418779001 | 0.589 ppm |
| 2018-11-06 | 418779001 | 0.620 ppm |
| 2018-12-05 | 422846001 | 0.615 ppm |
| 2018-12-05 | 422846001 | 0.750 ppm |
| 2019-01-02 | 426026001 | 0.600 ppm |
| 2019-01-02 | 426026001 | 0.770 ppm |
| 2019-02-05 | 430556001 | 0.673 ppm |
| 2019-02-05 | 430556001 | 0.760 ppm |
| 2019-03-05 | 434059001 | 0.667 ppm |
| 2019-03-05 | 434059001 | 0.830 ppm |
| 2019-04-03 | 438793001 | 0.667 ppm |
| 2019-04-03 | 438793001 | 0.740 ppm |
| 2019-05-01 | 443517001 | 0.680 ppm |
| 2019-05-01 | 443517001 | 0.682 ppm |
| 2019-06-04 | 450099001 | 0.606 ppm |
| 2019-06-04 | 450099001 | 0.630 ppm |
| 2019-07-09 | 457018001 | 0.666 ppm |
| 2019-07-09 | 457018001 | 0.750 ppm |
| 2019-08-05 | 462448001 | 0.666 ppm |
| 2019-08-05 | 462448001 | 0.690 ppm |
| 2019-09-04 | 467855001 | 0.667 ppm |
| 2019-09-04 | 467855001 | 0.780 ppm |
| 2019-10-01 | 473967001 | 0.670 ppm |
| 2019-10-01 | 473967001 | 0.690 ppm |
| 2019-11-07 | 480483001 | 0.623 ppm |
| 2019-11-07 | 480483001 | 0.740 ppm |
| 2019-12-02 | 484343001 | 0.605 ppm |
| 2019-12-02 | 484343001 | 0.680 ppm |