Menu

EWG's Tap Water Database

Donate

Fluoride

North Las Vegas Utilities

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.

 

219

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20100.635 ppm49490.160 ppm - 0.770 ppm
20110.621 ppm33330.160 ppm - 0.740 ppm
20120.584 ppm36360.170 ppm - 0.700 ppm
20130.615 ppm32320.150 ppm - 0.710 ppm
20140.605 ppm35350.170 ppm - 0.750 ppm
20150.604 ppm34340.180 ppm - 0.710 ppm

ppm = parts per million.

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 4 ppm

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppm = parts per million.

EPA Maximum Contaminant
Level Goal (MCLG)4 ppm

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppm = parts per million.

All test results

Date Lab ID Result
2010-01-0510010022-0010.190 ppm
2010-01-0610010055-0020.720 ppm
2010-02-0310020055-0010.710 ppm
2010-03-0110020553-0010.650 ppm
2010-03-1110030289-0010.730 ppm
2010-03-1110030289-0020.730 ppm
2010-03-1110030289-0030.730 ppm
2010-03-1110030289-0040.730 ppm
2010-03-1110030289-0050.730 ppm
2010-03-1110030289-0060.720 ppm
2010-03-1110030289-0070.740 ppm
2010-03-1110030289-0080.740 ppm
2010-04-1310040208-0020.760 ppm
2010-04-2710040511-0010.210 ppm
2010-05-0310040678-0010.760 ppm
2010-06-0710060171-0010.760 ppm
2010-06-1010060261-0010.740 ppm
2010-06-1010060261-0020.750 ppm
2010-06-1010060261-0030.750 ppm
2010-06-1010060261-0040.750 ppm
2010-06-1010060261-0050.730 ppm
2010-06-1010060261-0060.750 ppm
2010-06-1010060261-0070.730 ppm
2010-06-1010060261-0080.750 ppm
2010-06-1610060426-0070.180 ppm
2010-07-1310070174-0020.560 ppm
2010-07-1910070315-0010.170 ppm
2010-07-1910070320-0070.160 ppm
2010-08-1110080232-0010.380 ppm
2010-08-1110080232-0070.160 ppm
2010-09-0710090095-0010.740 ppm
2010-09-0710090095-0070.170 ppm
2010-09-1610090312-0010.750 ppm
2010-09-1610090312-0020.730 ppm
2010-09-1610090312-0030.710 ppm
2010-09-1610090312-0040.710 ppm
2010-09-1610090312-0050.720 ppm
2010-09-1610090312-0060.710 ppm
2010-09-1610090312-0070.720 ppm
2010-09-1610090312-0080.720 ppm
2010-10-2010100419-0010.160 ppm
2010-12-0210120029-0010.770 ppm
2010-12-0210120029-0020.770 ppm
2010-12-0210120029-0030.760 ppm
2010-12-0210120029-0040.760 ppm
2010-12-0210120029-0050.760 ppm
2010-12-0210120029-0060.760 ppm
2010-12-0210120029-0070.750 ppm
2010-12-0210120029-0080.760 ppm
2011-03-0311030126-0010.680 ppm
2011-03-0311030126-0020.670 ppm
2011-03-0311030126-0030.670 ppm
2011-03-0311030126-0040.670 ppm
2011-03-0311030126-0050.670 ppm
2011-03-0311030126-0060.680 ppm
2011-03-0311030126-0070.670 ppm
2011-03-0311030126-0080.670 ppm
2011-06-0211060010-0010.690 ppm
2011-06-0211060010-0020.180 ppm
2011-06-0211060010-0030.180 ppm
2011-06-0211060010-0040.640 ppm
2011-06-0211060010-0050.680 ppm
2011-06-0211060010-0060.690 ppm
2011-06-0211060010-0070.700 ppm
2011-06-0211060010-0080.700 ppm
2011-06-0711060134-0010.180 ppm
2011-09-1311090235-0010.710 ppm
2011-09-1311090235-0020.160 ppm
2011-09-1311090235-0030.170 ppm
2011-09-1311090235-0040.710 ppm
2011-09-1311090235-0050.710 ppm
2011-09-1311090235-0060.710 ppm
2011-09-1311090235-0070.710 ppm
2011-09-1311090235-0080.710 ppm
2011-12-1511120309-0010.740 ppm
2011-12-1511120309-0020.730 ppm
2011-12-1511120309-0030.740 ppm
2011-12-1511120309-0040.740 ppm
2011-12-1511120309-0050.740 ppm
2011-12-1511120309-0060.730 ppm
2011-12-1511120309-0070.730 ppm
2011-12-1511120309-0080.740 ppm
2012-03-1512030305-0010.660 ppm
2012-03-1512030305-0020.600 ppm
2012-03-1512030305-0030.670 ppm
2012-03-1512030305-0040.690 ppm
2012-03-1512030305-0050.670 ppm
2012-03-1512030305-0060.680 ppm
2012-03-1512030305-0070.700 ppm
2012-03-1512030305-0080.660 ppm
2012-04-0412040059-0010.650 ppm
2012-04-0412040059-0020.650 ppm
2012-04-0412040059-0030.410 ppm
2012-04-0412040059-0040.650 ppm
2012-04-0412040059-0050.650 ppm
2012-04-0412040059-0060.660 ppm
2012-04-0412040059-0070.660 ppm
2012-04-0412040059-0080.650 ppm
2012-05-2312050554-0010.170 ppm
2012-06-1912060403-0020.190 ppm
2012-06-2712060581-0020.180 ppm
2012-07-0512070062-0010.680 ppm
2012-07-0512070062-0020.690 ppm
2012-07-0512070062-0030.290 ppm
2012-07-0512070062-0040.690 ppm
2012-07-0512070062-0050.690 ppm
2012-07-0512070062-0060.700 ppm
2012-07-0512070062-0070.700 ppm
2012-07-0512070062-0080.690 ppm
2012-09-1312090214-0010.230 ppm
2012-10-0412100080-0010.650 ppm
2012-10-0412100080-0020.660 ppm
2012-10-0412100080-0030.180 ppm
2012-10-0412100080-0040.630 ppm
2012-10-0412100080-0050.670 ppm
2012-10-0412100080-0060.670 ppm
2012-10-0412100080-0070.670 ppm
2012-10-0412100080-0080.670 ppm
2013-01-0313010012-0010.670 ppm
2013-01-0313010012-0020.680 ppm
2013-01-0313010012-0030.190 ppm
2013-01-0313010012-0040.570 ppm
2013-01-0313010012-0050.690 ppm
2013-01-0313010012-0060.710 ppm
2013-01-0313010012-0070.700 ppm
2013-01-0313010012-0080.700 ppm
2013-04-0413040069-0010.680 ppm
2013-04-0413040069-0020.700 ppm
2013-04-0413040069-0030.390 ppm
2013-04-0413040069-0040.700 ppm
2013-04-0413040069-0050.700 ppm
2013-04-0413040069-0060.700 ppm
2013-04-0413040069-0070.700 ppm
2013-04-0413040069-0080.700 ppm
2013-07-0313070044-0010.700 ppm
2013-07-0313070044-0020.710 ppm
2013-07-0313070044-0030.260 ppm
2013-07-0313070044-0040.710 ppm
2013-07-0313070044-0050.680 ppm
2013-07-0313070044-0060.690 ppm
2013-07-0313070044-0070.690 ppm
2013-07-0313070044-0080.700 ppm
2013-10-0313100024-0010.660 ppm
2013-10-0313100024-0020.670 ppm
2013-10-0313100024-0030.190 ppm
2013-10-0313100024-0040.670 ppm
2013-10-0313100024-0050.670 ppm
2013-10-0313100024-0060.680 ppm
2013-10-0313100024-0070.680 ppm
2013-10-0313100024-0080.150 ppm
2014-01-0213120439-0010.630 ppm
2014-01-0213120439-0020.640 ppm
2014-01-0213120439-0030.630 ppm
2014-01-0213120439-0040.700 ppm
2014-01-0213120439-0050.640 ppm
2014-01-0213120439-0060.640 ppm
2014-01-0213120439-0070.640 ppm
2014-01-0213120439-0080.640 ppm
2014-02-1114020152-0010.170 ppm
2014-04-0314040025-0010.660 ppm
2014-04-0314040025-0020.680 ppm
2014-04-0314040025-0030.400 ppm
2014-04-0314040025-0040.670 ppm
2014-04-0314040025-0050.680 ppm
2014-04-0314040025-0060.670 ppm
2014-04-0314040025-0070.670 ppm
2014-04-0314040025-0080.680 ppm
2014-06-2514060513-0010.180 ppm
2014-07-0214070013-0010.720 ppm
2014-07-0214070013-0020.750 ppm
2014-07-0214070013-0030.480 ppm
2014-07-0214070013-0040.750 ppm
2014-07-0214070013-0050.750 ppm
2014-07-0214070013-0060.740 ppm
2014-07-0214070013-0070.680 ppm
2014-07-0214070013-0080.670 ppm
2014-07-3114070540-0010.180 ppm
2014-10-0614100028-0010.640 ppm
2014-10-0614100028-0020.650 ppm
2014-10-0614100028-0030.260 ppm
2014-10-0614100028-0040.630 ppm
2014-10-0614100028-0050.660 ppm
2014-10-0614100028-0060.660 ppm
2014-10-0614100028-0070.670 ppm
2014-10-0614100028-0080.660 ppm
2015-01-0514120536-0010.690 ppm
2015-01-0514120536-0020.690 ppm
2015-01-0514120536-0030.180 ppm
2015-01-0514120536-0040.600 ppm
2015-01-0514120536-0050.680 ppm
2015-01-0514120536-0060.710 ppm
2015-01-0514120536-0070.710 ppm
2015-01-0514120536-0080.710 ppm
2015-04-0215040021-0010.690 ppm
2015-04-0215040021-0020.690 ppm
2015-04-0215040021-0030.430 ppm
2015-04-0215040021-0040.690 ppm
2015-04-0215040021-0050.690 ppm
2015-04-0215040021-0060.690 ppm
2015-04-0215040021-0070.690 ppm
2015-04-0215040021-0080.690 ppm
2015-06-1715060304-0010.190 ppm
2015-07-0215070003-0010.680 ppm
2015-07-0215070003-0020.680 ppm
2015-07-0215070003-0030.240 ppm
2015-07-0215070003-0040.670 ppm
2015-07-0215070003-0050.670 ppm
2015-07-0215070003-0060.680 ppm
2015-07-0215070003-0070.690 ppm
2015-07-0215070003-0080.690 ppm
2015-09-0915090134-0010.180 ppm
2015-10-0115090549-0010.660 ppm
2015-10-0115090549-0020.660 ppm
2015-10-0115090549-0030.290 ppm
2015-10-0115090549-0040.660 ppm
2015-10-0115090549-0050.660 ppm
2015-10-0115090549-0060.670 ppm
2015-10-0115090549-0070.670 ppm
2015-10-0115090549-0080.670 ppm