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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Yorba Linda Water District

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.

MORE ABOUT THIS CONTAMINANT

 

52

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND110ND
20140.250 ppb21ND - 0.500 ppb
2015ND70ND
2016ND150ND
2017ND40ND
2018ND70ND
2019ND60ND

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
2013-01-093010037805ND
2013-01-093010037992ND
2013-03-043010037806ND
2013-03-183010037991ND
2013-06-103010037806-2ND
2013-06-243010037991-2ND
2013-07-103010037992-2ND
2013-07-103010037805-2ND
2013-09-033010037806-3ND
2013-09-163010037991-3ND
2013-12-163010037991-4ND
2014-02-053010037806-4A0.500 ppb
2014-04-024417-011-0945ND
2015-02-194417-020-0840ND
2015-07-084417-002-0835ND
2015-07-084417-003-0820ND
2015-08-174417-003-0910ND
2015-08-174417-003-0900ND
2015-09-144417-002-0810ND
2015-09-144417-002-0820ND
2016-01-144417-003-0940ND
2016-01-144417-008-0845ND
2016-01-144417-002-0945ND
2016-01-144417-007-1005ND
2016-01-144417-002-0955ND
2016-01-144417-006-0830ND
2016-01-144417-004-0900ND
2016-01-144417-003-0930ND
2016-04-134417-008-1230ND
2016-04-134417-001-1105ND
2016-06-154417-008-0935ND
2016-07-214417-023-0850ND
2016-09-074417-001-0840ND
2016-09-074417-001-0850ND
2016-09-074417-001-0900ND
2017-01-184417-011-0830ND
2017-03-013761-024-1020ND
2017-07-124417-024-0845ND
2017-10-044417-024-0910ND
2018-01-174417-020-1100ND
2018-01-174417-011-1025ND
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
2019-03-134417-008-0900ND
2019-03-134417-007-1130ND
2019-03-134417-006-0810ND
2019-05-304417-004-1000ND
2019-08-204417-001-0920ND
2019-08-204417-023-0825ND