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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

Valencia Water Company

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

 

79

Samples

0

Samples exceeding legal limit (MCL)

49

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.315 ppb880.110 ppb - 0.460 ppb
20140.632 ppb5237ND - 2.40 ppb
2015N/A00N/A
2016N/A00N/A
20170.353 ppb194ND - 2.00 ppb
2018N/A00N/A
2019N/A00N/A

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
2013-02-27201303010058AM0.280 ppb
2013-02-27201303010076AM0.460 ppb
2013-05-15201305160535AM0.110 ppb
2013-05-22201305230447AM0.330 ppb
2013-08-23201308290470AM0.310 ppb
2013-08-23201308290468AM0.360 ppb
2013-11-11201311150009AM0.240 ppb
2013-11-11201311150023AM0.430 ppb
2014-03-05201403050961AM0.120 ppb
2014-03-05201403050959AM0.130 ppb
2014-03-12201403120915AM0.0890 ppb
2014-03-12201403120917AM0.170 ppb
2014-03-12201403120928AM1.90 ppb
2014-04-09201404100450AM0.400 ppb
2014-04-16201404180185AM0.530 ppb
2014-04-16201404180191AM0.390 ppb
2014-04-16201404180189AM0.380 ppb
2014-04-16201404180187AM0.400 ppb
2014-04-16201404180193AM0.720 ppb
2014-04-23201404230714AM0.460 ppb
2014-05-14201405141013AM0.460 ppb
2014-05-28201405280602AM0.240 ppb
2014-05-28201405280608AM2.20 ppb
2014-05-28201405280604AM0.440 ppb
2014-05-28201405280606AM1.60 ppb
2014-06-11201406120233AM0.530 ppb
2014-06-25201406250428AM2.40 ppb
2014-09-049590-021-1000ND
2014-09-049590-052-09102.20 ppb
2014-09-049590-062-1040ND
2014-09-119590-005-0930ND
2014-09-119590-018-1000ND
2014-09-119590-024-1100ND
2014-09-119590-026-1130ND
2014-09-119590-058-1030ND
2014-09-189590-017-0945ND
2014-09-189590-070-1120ND
2014-09-189590-051-1015ND
2014-09-189590-049-0850ND
2014-09-189590-046-1100ND
2014-09-189590-025-0830ND
2014-09-259590-073-09152.30 ppb
2014-09-259590-004-1100ND
2014-09-259590-003-09452.00 ppb
2014-09-259590-048-10201.60 ppb
2014-09-259590-047-1040ND
2014-10-09201410090961AM0.410 ppb
2014-10-10201410160744AM0.390 ppb
2014-10-10201410160740AM0.670 ppb
2014-10-10201410160738AM0.540 ppb
2014-10-10201410160742AM0.390 ppb
2014-10-16201410160748AM0.310 ppb
2014-10-16201410160746AM0.740 ppb
2014-11-06201411060677AM0.520 ppb
2014-11-06201411060675AM0.500 ppb
2014-11-20201411200792AM2.30 ppb
2014-11-20201411200788AM0.400 ppb
2014-11-20201411200796AM1.90 ppb
2014-11-20201411200794AM1.60 ppb
2014-11-20201411200790AM0.510 ppb
2017-04-069590-052-08351.80 ppb
2017-04-069590-021-0800ND
2017-04-069590-062-0820ND
2017-04-139590-058-0955ND
2017-04-139590-005-0910ND
2017-04-139590-018-0945ND
2017-04-139590-024-0850ND
2017-04-139590-026-0900ND
2017-04-209590-046-0920ND
2017-04-209590-017-1005ND
2017-04-209590-025-0840ND
2017-04-209590-049-0940ND
2017-04-209590-051-1030ND
2017-04-209590-070-0900ND
2017-04-279590-047-1015ND
2017-04-279590-048-10001.70 ppb
2017-04-279590-073-09151.20 ppb
2017-04-279590-003-09302.00 ppb
2017-04-279590-004-1020ND