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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

City of Seal Beach

Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).

MORE ABOUT THIS CONTAMINANT

 

25

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.0764 ppb118ND - 0.250 ppb
2014ND40ND
2015N/A00N/A
2016N/A00N/A
2017ND20ND
2018ND80ND
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for chromium (hexavalent) 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 cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2013-02-0630100418020.250 ppb
2013-02-063010041804ND
2013-02-0630100419920.200 ppb
2013-02-073010041806ND
2013-06-103010041805-20.0800 ppb
2013-06-253010041991-20.0800 ppb
2013-08-073010041804-20.0500 ppb
2013-08-073010041992-20.0700 ppb
2013-08-073010041806-2ND
2013-09-033010041805-30.0600 ppb
2013-09-163010041991-30.0500 ppb
2014-02-254417-003-0740ND
2014-04-294417-009-0800ND
2014-04-294417-002-0815ND
2014-04-294417-001-0745ND
2017-01-264417-009-0725ND
2017-04-244417-002-0940ND
2018-01-164417-009-1100ND
2018-01-164417-002-1030ND
2018-02-274417-001-0930ND
2018-03-144417-002-1050ND
2018-03-144417-002-1035ND
2018-04-304417-002-1040ND
2018-04-304417-002-1025ND
2018-05-164417-001-1100ND