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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

City of Santa Ana

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

 

91

Samples

0

Samples exceeding legal limit (MCL)

63

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.167 ppb12120.0300 ppb - 0.680 ppb
20140.873 ppb4130ND - 2.10 ppb
2015N/A00N/A
20160.926 ppb1911ND - 2.10 ppb
2017ND10ND
20181.03 ppb85ND - 2.18 ppb
20190.757 ppb105ND - 1.80 ppb

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
2013-03-0430100388340.110 ppb
2013-03-0530100388250.120 ppb
2013-03-0730100389960.340 ppb
2013-06-103010038825-20.0800 ppb
2013-06-103010038834-20.0800 ppb
2013-06-113010038996-20.680 ppb
2013-09-033010038825-30.0600 ppb
2013-09-033010038834-30.0600 ppb
2013-09-043010038996-30.320 ppb
2013-12-093010038834-40.0300 ppb
2013-12-093010038825-40.0300 ppb
2013-12-103010038996-40.0900 ppb
2014-02-043010038804-12.06 ppb
2014-02-043010038817-11.92 ppb
2014-02-043010038813-10.290 ppb
2014-02-043010038995-11.09 ppb
2014-02-043010038833-10.990 ppb
2014-02-043010038823-11.15 ppb
2014-02-043010038806-11.75 ppb
2014-02-043010038812-10.530 ppb
2014-02-043010038824-11.35 ppb
2014-02-043010038802-10.210 ppb
2014-02-043010038832-10.400 ppb
2014-02-043010038820-11.04 ppb
2014-02-184417-019-1215ND
2014-02-184417-061-12301.30 ppb
2014-02-184417-038-0730ND
2014-03-114417-025-0815ND
2014-05-204417-022-07352.10 ppb
2014-05-204417-025-08101.10 ppb
2014-05-204417-039-0905ND
2014-05-204417-021-07152.00 ppb
2014-05-204417-027-0920ND
2014-05-204417-019-0835ND
2014-05-204417-028-0930ND
2014-05-204417-031-1055ND
2014-05-204417-034-11202.00 ppb
2014-05-204417-035-08251.40 ppb
2014-05-204417-038-0700ND
2014-05-204417-018-1015ND
2014-07-083010038832-20.390 ppb
2014-07-083010038824-21.30 ppb
2014-07-083010038995-21.10 ppb
2014-07-083010038833-21.01 ppb
2014-07-083010038809-20.410 ppb
2014-07-083010038812-20.530 ppb
2014-07-083010038804-22.02 ppb
2014-07-083010038806-22.00 ppb
2014-07-083010038820-20.970 ppb
2014-07-083010038823-21.14 ppb
2014-07-083010038813-20.360 ppb
2014-07-083010038817-21.90 ppb
2014-12-174417-026-1050ND
2016-02-164417-073-1245ND
2016-02-164417-061-09151.40 ppb
2016-02-164417-039-1025ND
2016-02-164417-026-1110ND
2016-02-164417-027-1000ND
2016-03-074417-029-0810ND
2016-05-244417-074-11551.000 ppb
2016-05-244417-021-08201.80 ppb
2016-05-244417-022-09052.10 ppb
2016-05-244417-030-08401.70 ppb
2016-06-224417-033-07151.30 ppb
2016-06-224417-031-0635ND
2016-07-074417-025-06301.40 ppb
2016-08-034417-028-0955ND
2016-08-034417-037-08452.10 ppb
2016-08-034417-038-10251.30 ppb
2016-08-034417-035-08301.50 ppb
2016-08-034417-034-07102.00 ppb
2016-08-034417-018-0800ND
2017-05-164417-019-0950ND
2018-02-214417-074-0920ND
2018-02-214417-021-10501.68 ppb
2018-02-214417-037-06101.85 ppb
2018-02-214417-039-0830ND
2018-04-264417-035-08151.34 ppb
2018-05-154417-022-12402.18 ppb
2018-05-154417-025-1050ND
2018-10-114417-038-08001.22 ppb
2019-03-114417-026-1145ND
2019-03-114417-061-09451.54 ppb
2019-03-114417-038-08201.64 ppb
2019-03-114417-031-1115ND
2019-03-114417-027-1035ND
2019-03-204417-030-13401.80 ppb
2019-05-074417-028-1015ND
2019-07-234417-034-10251.45 ppb
2019-07-234417-033-07551.14 ppb
2019-09-174417-073-0820ND