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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

City of Santa Ana

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.

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88

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.1000 ppb113ND - 0.600 ppb
20140.656 ppb3424ND - 1.80 ppb
2015ND40ND
2016ND180ND
2017ND10ND
2018ND80ND
2019ND120ND

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
2013-03-043010038834ND
2013-03-053010038825ND
2013-03-0730100389960.300 ppb
2013-06-103010038834-2ND
2013-06-103010038825-2ND
2013-06-113010038996-20.600 ppb
2013-09-033010038825-3ND
2013-09-033010038834-3ND
2013-09-043010038996-30.200 ppb
2013-12-093010038825-4ND
2013-12-103010038996-4ND
2014-02-043010038823-11.60 ppb
2014-02-043010038832-10.300 ppb
2014-02-043010038995-10.900 ppb
2014-02-043010038833-10.800 ppb
2014-02-043010038806-11.40 ppb
2014-02-043010038812-10.400 ppb
2014-02-043010038802-1ND
2014-02-043010038804-11.70 ppb
2014-02-043010038820-10.900 ppb
2014-02-043010038817-11.60 ppb
2014-02-043010038813-10.400 ppb
2014-02-043010038824-11.000 ppb
2014-02-053010038834-4A0.500 ppb
2014-02-184417-038-0730ND
2014-02-184417-037-1255ND
2014-02-184417-033-1010ND
2014-02-184417-030-0845ND
2014-02-184417-022-0905ND
2014-02-184417-021-0820ND
2014-07-083010038995-20.800 ppb
2014-07-083010038832-20.300 ppb
2014-07-083010038824-21.20 ppb
2014-07-083010038817-21.60 ppb
2014-07-083010038833-20.800 ppb
2014-07-083010038812-20.400 ppb
2014-07-083010038809-20.300 ppb
2014-07-083010038804-21.70 ppb
2014-07-083010038806-21.80 ppb
2014-07-083010038820-20.800 ppb
2014-07-083010038823-20.900 ppb
2014-07-083010038813-20.200 ppb
2014-08-204417-018-0915ND
2014-08-204417-025-0725ND
2014-08-204417-035-0710ND
2015-02-244417-028-0905ND
2015-02-244417-073-0940ND
2015-05-194417-074-1050ND
2015-05-194417-019-0840ND
2016-02-164417-061-0915ND
2016-02-164417-027-1000ND
2016-02-164417-039-1025ND
2016-02-164417-026-1110ND
2016-03-074417-029-0810ND
2016-05-244417-022-0905ND
2016-05-244417-021-0820ND
2016-05-244417-030-0840ND
2016-05-244417-034-1220ND
2016-06-224417-031-0635ND
2016-06-224417-033-0715ND
2016-07-074417-025-0630ND
2016-08-034417-018-0800ND
2016-08-034417-028-0955ND
2016-08-034417-035-0830ND
2016-08-034417-037-0845ND
2016-08-034417-038-1025ND
2016-08-034417-034-0710ND
2017-05-164417-019-0950ND
2018-02-214417-074-0920ND
2018-02-214417-021-1050ND
2018-02-214417-037-0610ND
2018-02-214417-039-0830ND
2018-04-264417-035-0815ND
2018-05-154417-022-1240ND
2018-05-154417-025-1050ND
2018-10-114417-038-0800ND
2019-03-114417-027-1030ND
2019-03-114417-061-0940ND
2019-03-114417-026-1140ND
2019-03-114417-038-0815ND
2019-03-114417-031-1110ND
2019-03-204417-030-1335ND
2019-05-074417-028-1010ND
2019-07-234417-033-0750ND
2019-07-234417-034-1020ND
2019-09-174417-073-0815ND
2019-11-054417-073-1455ND
2019-11-054417-073-1505ND