Know Your Environment. Protect Your Health.

Chromium (total)

Coachella Valley Water District: I.d. No. 8

Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201819.6 ppb5512.0 ppb - 24.0 ppb
201918.2 ppb6613.0 ppb - 22.0 ppb
202021.5 ppb2220.0 ppb - 23.0 ppb
202113.0 ppb1113.0 ppb
202217.0 ppb2214.0 ppb - 20.0 ppb
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 100 ppb

The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-14CA3310048_004_004-20180314091022.0 ppb
2018-06-27CA3310048_004_004-20180627111320.0 ppb
2018-07-02CA3310048_014_014-20180702093112.0 ppb
2018-07-18CA3310048_004_004-20180718081324.0 ppb
2018-12-11CA3310048_004_004-20181211133020.0 ppb
2019-03-06CA3310048_004_004-20190306092517.0 ppb
2019-05-14CA3310048_007_007-20190514103013.0 ppb
2019-05-15CA3310048_004_004-20190515080018.0 ppb
2019-06-21CA3310048_004_004-20190621123517.0 ppb
2019-09-17CA3310048_004_004-20190917092022.0 ppb
2019-12-19CA3310048_004_004-20191219082022.0 ppb
2020-03-17CA3310048_004_004-20200317123720.0 ppb
2020-06-23CA3310048_004_004-20200623092023.0 ppb
2021-12-02CA3310048_014_014-20211202074913.0 ppb
2022-01-06CA3310048_004_004-20220106094020.0 ppb
2022-02-16CA3310048_007_007-20220216073514.0 ppb