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EWG's Tap Water Database — 2021 UPDATE

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Mercury (inorganic)

Hicksville WD

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.

MORE ABOUT THIS CONTAMINANT

 

83

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
2014ND140ND
2015ND40ND
2016ND190ND
2017ND130ND
20180.0200 ppb151ND - 0.300 ppb
2019ND180ND

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
2014-04-241404I07-001-PRIND
2014-04-241404I07-003-PRIND
2014-04-241404I07-002-PRIND
2014-08-131408899-002-PRIND
2014-08-131408899-001-PRIND
2014-12-231412H47-003-PRIND
2014-12-231412H47-004-PRIND
2014-12-231412H47-007-PRIND
2014-12-231412H47-005-PRIND
2014-12-231412H47-001-PRIND
2014-12-231412H47-006-PRIND
2014-12-231412H47-009-PRIND
2014-12-231412H47-008-PRIND
2014-12-231412H47-002-PRIND
2015-05-041505132-001 PRIND
2015-05-111505731-002 PRIND
2015-05-111505731-003 PRIND
2015-05-111505731-001 PRIND
2016-05-171605F44-001-PRIND
2016-05-171605F44-011ND
2016-09-121609794-002-PRIND
2016-09-121609794-001-PRIND
2016-09-131609A01-002-PRIND
2016-09-131600A01-002-PRIND
2016-09-131609A01-001-PRIND
2016-09-141609B74-001-PRIND
2016-09-141609B48-002-PRIND
2016-09-141609B74-002-PRIND
2016-09-141609B48-001-PRIND
2016-09-151609C74-001-PRIND
2016-09-161509B91-002-PRIND
2016-09-161509B91-001ND
2016-09-201609G74-003ND
2016-09-201609G74-002-PRIND
2016-09-211609H81-002-PRIND
2016-09-211609H81-001-PRIND
2016-09-211609H81-003-PRIND
2017-09-067028975002-PRIND
2017-09-067028975003ND
2017-09-127029543001-PRIND
2017-09-127029543002-PRIND
2017-09-157030102001-PRIND
2017-09-157030102002-PRIND
2017-09-197030413001-PRIND
2017-09-217030724001-PRIND
2017-09-217030724002-PRIND
2017-09-267031075001-PRIND
2017-09-267031075002-PRIND
2017-09-267031075003-PRIND
2017-09-277031145001-PRIND
2018-04-057047356001-PRND
2018-04-057047356002-PRIND
2018-09-067063917001-PRIND
2018-09-067063904002-PRI0.300 ppb
2018-09-067063917003-PRIND
2018-09-067063917002-PRIND
2018-09-067063904008-PRIND
2018-09-067063904004-PRIND
2018-09-107064183001-PRIND
2018-09-107064183002-PRIND
2018-09-107064147002-PRIND
2018-09-107064147004-PRIND
2018-09-127064540005-PRIND
2018-09-127064540001ND
2018-09-127064540002-PRIND
2019-09-1070104368003 PRIND
2019-09-1070104328002 PRIND
2019-09-1070104328001 PRIND
2019-09-1070104368002 PRIND
2019-09-1070104328003 PRIND
2019-09-1070104368001 PRIND
2019-09-1670105031001 PRIND
2019-09-1670105031003 PRIND
2019-09-1670105031002 PRIND
2019-09-1870105415002 PRIND
2019-09-1870105415001 PRIND
2019-09-1970105638002 PRIND
2019-09-1970105641001 PRIND
2019-09-1970105641002 PRIND
2019-09-1970105603002 PRIND
2019-09-1970105603001 PRIND
2019-09-1970105638001 PRIND
2019-09-2470106094001 PRIND