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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

Vernon Water Department

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

 

44

Samples

0

Samples exceeding legal limit (MCL)

22

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.212 ppb2412ND - 1.10 ppb
20150.132 ppb440.0340 ppb - 0.410 ppb
2016ND10ND
20170.580 ppb51ND - 2.90 ppb
2018ND10ND
20191.62 ppb95ND - 5.30 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
2014-04-24201404250225AMND
2014-04-24201404250409AMND
2014-04-24201404250411AM0.650 ppb
2014-04-24201404250415AM0.940 ppb
2014-04-24201404250413AM0.0770 ppb
2014-04-24201404250223AMND
2014-04-24201404250227AM0.0810 ppb
2014-04-24201404250229AM0.0580 ppb
2014-07-24201407250403AM0.0630 ppb
2014-07-24201407250401AM0.0560 ppb
2014-08-142706-005-08181.10 ppb
2014-08-142706-009-0830ND
2014-08-142706-011-0852ND
2014-08-212706-014-0825ND
2014-08-212706-013-0810ND
2014-08-212706-006-0835ND
2014-10-23201410240338AMND
2014-10-23201410240344AM1.000 ppb
2014-10-23201410240346AM0.0330 ppb
2014-10-23201410240340AM0.640 ppb
2014-10-23201410240336AMND
2014-10-23201410240348AM0.400 ppb
2014-10-23201410240342AMND
2014-12-112706-010-0820ND
2015-01-22201501230162AM0.0460 ppb
2015-01-22201501200174AM0.410 ppb
2015-01-22201501200175AM0.0360 ppb
2015-07-30201507310226AM0.0340 ppb
2016-08-299588-009-0945ND
2017-02-239588-006-0915ND
2017-02-239588-011-0925ND
2017-05-249588-014-0955ND
2017-05-249588-010-0905ND
2017-08-249588-005-09202.90 ppb
2018-08-309588-013-0900ND
2019-01-149588-010-1017ND
2019-02-289588-006-0925ND
2019-05-099588-010-10051.60 ppb
2019-05-239588-014-1050ND
2019-07-179588-010-09201.20 ppb
2019-08-209588-010-08451.40 ppb
2019-09-309588-005-13005.30 ppb
2019-11-279588-010-0825ND
2019-11-279588-005-08155.10 ppb