Know Your Environment. Protect Your Health.

Chromium (hexavalent)

Firgrove Mutual Inc

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).

 

30

Samples

0

Samples exceeding legal limit (MCL)

26

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.138 ppb1211ND - 0.250 ppb
20150.108 ppb1815ND - 0.240 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2014-11-17201411190378AM0.0510 ppb
2014-11-17201411190526AM0.110 ppb
2014-11-17201411190528AM0.220 ppb
2014-11-17201411190452AM0.250 ppb
2014-11-17201411190437AM0.0330 ppb
2014-11-17201411190338AM0.120 ppb
2014-11-17201411190454AM0.200 ppb
2014-11-17201411190450AM0.120 ppb
2014-11-17201411190490AMND
2014-11-17201411190435AM0.110 ppb
2014-11-17201411190403AM0.200 ppb
2014-12-12201412160672AM0.240 ppb
2015-02-13201502160119AMND
2015-02-13201502160121AM0.0640 ppb
2015-03-13201503170797AM0.0790 ppb
2015-05-18201505200651AM0.0570 ppb
2015-05-18201505210080AM0.0850 ppb
2015-05-18201505200251AM0.0750 ppb
2015-05-18201505200247AM0.190 ppb
2015-05-18201505200407AM0.0810 ppb
2015-05-18201505200262AM0.200 ppb
2015-05-18201505210076AMND
2015-05-18201505200243AM0.220 ppb
2015-05-18201505200268AM0.0780 ppb
2015-05-18201505200274AM0.0520 ppb
2015-05-18201505200655AM0.240 ppb
2015-05-18201505200365AMND
2015-05-18201505210078AM0.240 ppb
2015-08-21201508250623AM0.170 ppb
2015-08-21201508250571AM0.110 ppb