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EWG's Tap Water Database — 2019 UPDATE

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Fluoride

Sun Valley Gid

NOTE: Sun Valley Gid purchases water from Truckee Meadows Water Authority which is required to test for fluoride. Sample information shown below was taken by Truckee Meadows Water Authority.

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.

 

122

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND180ND
2013ND250ND
2014ND250ND
20150.0241 ppm91ND - 0.217 ppm
2016ND190ND
20170 ppm261ND - 0.240 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

NOTE: Sun Valley Gid purchases water from Truckee Meadows Water Authority which is required to test for fluoride. Sample information shown below was taken by Truckee Meadows Water Authority.

Date Lab ID Result
2012-04-020412-01IND
2012-04-020412-01SEND
2012-04-110412-06IND
2012-04-110412-06SEND
2012-05-160512-36IND
2012-05-160512-36SEND
2012-05-160512-35IND
2012-05-160512-35SEND
2012-06-060612-09IND
2012-06-060612-09SEND
2012-06-190612-26IND
2012-06-190612-26SEND
2012-06-190612-27IND
2012-06-190612-27SEND
2012-06-260612-32IND
2012-06-260612-32SEND
2012-06-260612-33IND
2012-06-260612-33SEND
2013-05-070513-12-IND
2013-05-070513-09-IND
2013-05-070513-13-IND
2013-05-080513-16-IOCND
2013-05-080513-16SEND
2013-05-080513-17IND
2013-05-080513-17SEND
2013-05-080513-19IND
2013-05-080513-19SEND
2013-05-080513-19-SECIOCND
2013-05-080513-18ND
2013-05-080513-18SEND
2013-06-180613-20-IOCND
2013-06-180513-17-IOCND
2013-06-190613-23ND
2013-06-190613-22ND
2013-06-190613-22I-2ND
2013-06-190613-21ND
2013-06-190613-21-2ND
2013-06-190613-25-IND
2013-06-240613-56-IND
2013-06-250613-70-IND
2013-06-250613-54ND
2013-06-250613-54I2ND
2013-06-250613-68-IND
2014-04-220414-13-IND
2014-04-220414-12-IND
2014-04-220414-12-ISND
2014-04-220414-16-ISND
2014-04-230414-17-IND
2014-04-230414-17-ISND
2014-04-230414-16-IND
2014-05-170614-13-IND
2014-06-090614-06-IND
2014-06-090614-06-ISND
2014-06-090614-07-IND
2014-06-170614-11-IND
2014-06-170614-11-ISND
2014-06-170614-10-IND
2014-06-170614-09-IND
2014-06-170614-12-IND
2014-06-170614-12-ISND
2014-06-170614-13ND
2014-06-170614-13-ISND
2014-06-170514-14-IND
2014-06-170614-14-ISND
2014-06-240614-28-IND
2014-06-240614-28-ISND
2014-06-240614-26-IND
2014-06-240614-26-ISND
2015-06-081506017-01ND
2015-06-081506018-01ND
2015-06-111506027-01ND
2015-06-171506035-01ND
2015-06-171506036-01ND
2015-06-171506037-01ND
2015-06-171506038-01ND
2015-06-231506055-010.217 ppm
2015-06-231506061-01ND
2016-05-311605028-01ND
2016-05-311605025-01ND
2016-05-311605026-01ND
2016-05-311605027-01ND
2016-06-011606001-01ND
2016-06-061606010-01ND
2016-07-191607023-01ND
2016-07-191607024-01ND
2016-07-191607025-01ND
2016-08-041608010-01ND
2016-08-041608011-01ND
2016-08-151608022-01ND
2016-08-151608023-01ND
2016-08-241608035-01ND
2016-08-241608034-01ND
2016-08-241608033-01ND
2016-08-241608037-01ND
2016-08-251608036-01ND
2016-08-251608039-01ND
2017-02-071702004-01ND
2017-03-081703009-01ND
2017-03-081703008-01ND
2017-05-021705003-01ND
2017-05-021705004-01ND
2017-05-021705005-01ND
2017-05-151705023-01ND
2017-05-151705025-01ND
2017-05-151705024-01ND
2017-05-251705041-01ND
2017-06-010 ppm*
2017-07-111707003-01ND
2017-07-111707002-01ND
2017-07-111707005-01ND
2017-07-111707004-01ND
2017-07-181707020-01ND
2017-07-181707021-01ND
2017-07-181707022-01ND
2017-07-181707024-01ND
2017-08-161708013-01ND
2017-08-161708014-01ND
2017-08-291708026-01ND
2017-08-291708027-01ND
2017-08-291708029-01ND
2017-08-291708030-01ND
2017-08-291708025-01ND

* Sample result is taken from the system's CCR report.