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EWG's Tap Water Database — 2019 UPDATE

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Mercury (inorganic)

Sun Valley Gid

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

Mercury is a potent neurotoxin that also damages the kidneys and other internal organs. Mercury enters drinking water from industrial pollution, mining wastes and coal-fired power plants.

 

85

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND90ND
2013ND170ND
2014ND150ND
2015ND90ND
20160.0308 ppb132ND - 0.200 ppb
2017ND220ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1.2 ppb

The EWG Health Guideline of 1.2 ppb for mercury (inorganic) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for inorganic mercury, established in 1991, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

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

Date Lab ID Result
2012-04-020412-01IND
2012-04-110412-06IND
2012-05-160512-35IND
2012-05-160512-36IND
2012-06-060612-09IND
2012-06-190612-26IND
2012-06-190612-27IND
2012-06-260612-33IND
2012-06-260612-32IND
2013-05-070513-09-IND
2013-05-070513-12-IND
2013-05-070513-13-IND
2013-05-080513-17IND
2013-05-080513-19IND
2013-05-080513-16-IOCND
2013-05-080513-18ND
2013-06-180613-20-IOCND
2013-06-180513-17-IOCND
2013-06-190613-23ND
2013-06-190613-25-IND
2013-06-190613-21ND
2013-06-190613-22ND
2013-06-240613-56-IND
2013-06-250613-68-IND
2013-06-250613-54ND
2013-06-250613-70-IND
2014-04-220414-13-IND
2014-04-220414-12-IND
2014-04-230414-17-IND
2014-04-230414-16-IND
2014-05-170614-13-IND
2014-06-090614-06-IND
2014-06-090614-07-IND
2014-06-170514-14-IND
2014-06-170614-09-IND
2014-06-170614-13ND
2014-06-170614-11-IND
2014-06-170614-10-IND
2014-06-170614-12-IND
2014-06-240614-26-IND
2014-06-240614-28-IND
2015-06-081506018-01ND
2015-06-081506017-01ND
2015-06-111506027-01ND
2015-06-171506038-01ND
2015-06-171506037-01ND
2015-06-171506036-01ND
2015-06-171506035-01ND
2015-06-231506055-01ND
2015-06-231506061-01ND
2016-05-311605027-010.200 ppb
2016-05-311605028-01ND
2016-06-011606001-01ND
2016-06-061606010-01ND
2016-07-191607023-010.200 ppb
2016-07-191607024-01ND
2016-08-041608010-01ND
2016-08-151608023-01ND
2016-08-151608022-01ND
2016-08-241608035-01ND
2016-08-241608034-01ND
2016-08-241608033-01ND
2016-08-251608036-01ND
2017-02-071702004-01ND
2017-03-081703008-01ND
2017-03-081703009-01ND
2017-05-021705004-01WETND
2017-05-021705003-01WETND
2017-05-151705023-01WETND
2017-05-151705025-01WETND
2017-05-251705041-01WETND
2017-07-111707005-01WETND
2017-07-111707004-01ND
2017-07-111707002-01WETND
2017-07-111707003-01WETND
2017-07-181707022-01WETND
2017-07-181707021-01WETND
2017-07-181707020-01WETND
2017-08-161708013-01ND
2017-08-161708014-01ND
2017-08-291708027-01ND
2017-08-291708029-01ND
2017-08-291708026-01ND
2017-08-291708030-01ND
2017-08-291708025-01ND