Know Your Environment. Protect Your Health.

Chromium (hexavalent)

Woodstock Ranch

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).

 

10

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201815.0 ppb1115.0 ppb
201924.0 ppb2213.0 ppb - 35.0 ppb
202010.00 ppb1110.00 ppb
202128.3 ppb4414.0 ppb - 50.0 ppb
202222.0 ppb2214.0 ppb - 30.0 ppb
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
2018-06-14CA4200807_003_003-20180614075015.0 ppb
2019-03-27CA4200807_007_007-20190327091535.0 ppb
2019-09-19CA4200807_008_008-20190919095513.0 ppb
2020-06-04CA4200807_009_009-20200604081610.00 ppb
2021-03-02CA4200807_003_003-20210302115016.0 ppb
2021-03-02CA4200807_008_008-20210302121514.0 ppb
2021-03-02CA4200807_009_009-20210302124533.0 ppb
2021-03-10CA4200807_007_007-20210310093050.0 ppb
2022-02-08CA4200807_008_008-20220208091014.0 ppb
2022-02-08CA4200807_007_007-20220208094030.0 ppb