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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

City of Seal Beach

Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
20130.0250 ppb121ND - 0.300 ppb
2014ND10ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-244417-001-0820ND
2012-01-244417-002-0800ND
2012-02-144417-009-0800ND
2012-05-094417-003-0740ND
2013-02-063010041804ND
2013-02-063010041992ND
2013-02-0630100418020.300 ppb
2013-02-073010041806ND
2013-06-103010041805-2ND
2013-06-253010041991-2ND
2013-08-073010041804-2ND
2013-08-073010041806-2ND
2013-08-073010041992-2ND
2013-09-033010041805-3ND
2013-09-163010041991-3ND
2013-12-034417-003-0810ND
2014-02-254417-003-0740ND
2015-01-204417-009-0805ND
2015-02-024417-002-1030ND