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EWG's Tap Water Database — 2021 UPDATE

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Mercury (inorganic)

Garden City

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.

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69

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND90ND
2015ND120ND
2016ND120ND
2017ND100ND
2018ND110ND
20190.0200 ppb151ND - 0.300 ppb

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

Date Lab ID Result
2014-08-151408B39-005-PRIND
2014-08-151408B39-001-PRIND
2014-08-151408B39-002-PRIND
2014-08-151408B39-004-PRIND
2014-08-151408B39-003-PRIND
2014-08-181408C56-004-PRIND
2014-08-181408C56-003-PRIND
2014-08-181408C56-001-PRIND
2014-08-181408C56-002-PRIND
2015-08-051508347-001-PRIND
2015-08-051508347-004-PRIND
2015-08-051508347-002-PRIND
2015-08-051508347-005-PRIND
2015-08-051508347-003-PRIND
2015-08-061508491-007-PRIND
2015-08-061508491-001-PRIND
2015-08-061508491-004-PRIND
2015-08-061508491-002-PRIND
2015-08-071508632-002-PRIND
2015-08-071508632-001-PRIND
2015-10-281510L96-003-PRIND
2016-07-061607432-001-PRIND
2016-08-171608H35-001-PRIND
2016-08-171608H35-002-PRIND
2016-09-091609665-002-PRIND
2016-09-091609665-001-PRIND
2016-09-121609776-002-PRIND
2016-09-141609B78-003-PRIND
2016-09-141609B78-002-PRIND
2016-09-211609I88-003-PRIND
2016-09-211609I88-001-PRIND
2016-09-231609L06-003-PRIND
2016-09-231609L06-001-PRIND
2017-10-047031902006ND
2017-10-047031903005ND
2017-10-047031903003ND
2017-10-047031903004ND
2017-10-137032857003-PRIND
2017-10-137032857002-PRIND
2017-10-137032857001-PRIND
2017-10-267034156001-PRIND
2017-10-267034156002-PRIND
2017-12-227038915001-PRIND
2018-06-057053755003-PRIND
2018-09-127064528001-PRIND
2018-09-127064528002ND
2018-09-147064896003-PRIND
2018-09-147064896001ND
2018-10-117067661001-PRIND
2018-10-117067661002-PRIND
2018-10-157067953002ND
2018-10-157067953001-PRIND
2018-10-247068920001-PRIND
2018-11-217071820006ND
2019-05-097088902003-PRIND
2019-05-097088902001-PRI0.300 ppb
2019-08-0770100284001-PRIND
2019-08-0770100284003-PRIND
2019-08-0870100531003-PRIND
2019-08-0870100531001-PRIND
2019-08-0870100531002-PRIND
2019-08-0870100531004-PRIND
2019-08-0970100701002-PRIND
2019-08-0970100701001-PRIND
2019-08-0970100701003-PRIND
2019-08-1970101923002-PRIND
2019-08-1970101923001-PRIND
2019-08-2170102243001-PRIND
2019-08-2170102243002-PRIND