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EWG's Tap Water Database — 2019 UPDATE

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Chromium (hexavalent)

City of Garden Grove

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).

 

65

Samples

0

Samples exceeding legal limit (MCL)

57

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.29 ppb108ND - 2.20 ppb
20131.09 ppb3029ND - 2.16 ppb
20141.10 ppb107ND - 2.10 ppb
20151.60 ppb111.60 ppb
20161.40 ppb111.40 ppb
20171.44 ppb1311ND - 3.00 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
2012-01-114417-020-0900ND
2012-04-044417-020-0745ND
2012-04-044417-019-09051.80 ppb
2012-04-044417-018-11052.10 ppb
2012-04-044417-012-08101.30 ppb
2012-04-044417-014-07302.20 ppb
2012-04-044417-016-11351.30 ppb
2012-04-044417-011-09151.20 ppb
2012-07-254417-013-14401.60 ppb
2012-07-254417-039-12501.40 ppb
2013-03-0430100628210.110 ppb
2013-03-0530100628160.120 ppb
2013-03-0730100629961.30 ppb
2013-05-1330100628021.50 ppb
2013-05-1330100628051.89 ppb
2013-05-1330100628201.40 ppb
2013-05-1330100629951.37 ppb
2013-05-1430100628071.42 ppb
2013-05-1430100628031.56 ppb
2013-05-1430100628130.620 ppb
2013-05-1530100628091.39 ppb
2013-05-1530100628151.37 ppb
2013-05-1530100628111.25 ppb
2013-06-103010062816-2ND
2013-06-103010062821-20.0800 ppb
2013-06-113010062996-20.150 ppb
2013-09-034417-061-10001.40 ppb
2013-09-043010062996-31.46 ppb
2013-11-133010062811-21.24 ppb
2013-11-133010062805-22.16 ppb
2013-11-133010062815-21.48 ppb
2013-11-133010062809-21.35 ppb
2013-11-133010062806-21.90 ppb
2013-11-133010062995-21.50 ppb
2013-11-133010062820-21.44 ppb
2013-11-133010062802-21.11 ppb
2013-11-133010062813-20.650 ppb
2013-12-093010062821-40.0300 ppb
2013-12-093010062816-40.0300 ppb
2013-12-103010062996-41.43 ppb
2014-04-024417-014-07001.90 ppb
2014-04-024417-039-10151.50 ppb
2014-04-024417-018-11051.70 ppb
2014-07-234417-009-0755ND
2014-07-234417-006-0955ND
2014-07-234417-019-07302.10 ppb
2014-07-234417-020-0710ND
2014-07-234417-012-09001.20 ppb
2014-07-234417-011-10301.10 ppb
2014-07-234417-016-11351.50 ppb
2015-07-224417-013-14301.60 ppb
2016-01-064417-061-08301.40 ppb
2017-02-014417-012-09151.30 ppb
2017-02-014417-014-09351.80 ppb
2017-02-014417-009-0820ND
2017-02-014417-019-07151.70 ppb
2017-02-014417-020-0800ND
2017-03-014417-018-10501.90 ppb
2017-03-014417-011-10203.00 ppb
2017-04-264417-011-10201.60 ppb
2017-04-264417-016-11201.40 ppb
2017-04-264417-039-09551.40 ppb
2017-04-264417-013-12001.50 ppb
2017-07-194417-011-10051.55 ppb
2017-07-194417-011-10101.54 ppb