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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

Yorba Linda Water District

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

 

54

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.104 ppb12120.0300 ppb - 0.180 ppb
2014ND70ND
2015ND10ND
2016ND70ND
2017ND120ND
2018ND80ND
2019ND70ND

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
2013-01-0930100378050.150 ppb
2013-01-0930100379920.170 ppb
2013-03-0430100378060.110 ppb
2013-03-1830100379910.110 ppb
2013-06-103010037806-20.0800 ppb
2013-06-243010037991-20.0900 ppb
2013-07-103010037992-20.180 ppb
2013-07-103010037805-20.180 ppb
2013-09-033010037806-30.0600 ppb
2013-09-163010037991-30.0500 ppb
2013-12-093010037806-40.0300 ppb
2013-12-163010037991-40.0400 ppb
2014-07-094417-003-0915ND
2014-07-094417-004-0900ND
2014-07-094417-006-0835ND
2014-07-094417-008-0845ND
2014-07-094417-011-0925ND
2014-07-094417-001-0805ND
2014-08-214417-002-1105ND
2015-03-304417-007-1005ND
2016-01-144417-008-0845ND
2016-01-144417-006-0830ND
2016-01-144417-020-0815ND
2016-01-144417-004-0900ND
2016-04-134417-001-1105ND
2016-07-214417-008-1050ND
2016-07-214417-023-0850ND
2017-01-184417-006-0850ND
2017-01-184417-011-0830ND
2017-01-184417-003-0925ND
2017-01-184417-002-0915ND
2017-03-013761-024-1020ND
2017-04-124417-004-0905ND
2017-04-124417-003-0920ND
2017-07-124417-024-0845ND
2017-07-184417-001-1020ND
2017-07-184417-001-1030ND
2017-10-044417-024-0910ND
2017-10-044417-002-1045ND
2018-01-174417-020-1100ND
2018-01-174417-011-1025ND
2018-01-174417-007-1010ND
2018-01-244417-024-0800ND
2018-04-254417-003-0815ND
2018-04-254417-002-1110ND
2018-04-254417-024-0940ND
2018-07-113761-003-1007ND
2019-03-134417-007-1140ND
2019-03-134417-008-0910ND
2019-03-134417-006-0820ND
2019-05-304417-004-1005ND
2019-08-204417-023-0830ND
2019-08-204417-001-0925ND
2019-10-234417-002-1030ND