Know Your Environment. Protect Your Health.

Chromium (total)

Huttig Waterworks

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.

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND50ND
2020ND50ND
2021ND70ND
202235.8 ppb98ND - 73.9 ppb
202345.8 ppb8812.1 ppb - 73.8 ppb

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
2018-05-01Y181230005ND
2018-10-29Y183050003ND
2019-01-28Y190310042ND
2019-05-01Y191220033ND
2019-09-03Y192490002ND
2019-10-15Y192900023ND
2019-10-28Y193050040ND
2020-02-24Y200580041ND
2020-06-16Y201700052ND
2020-08-31Y202470025ND
2020-09-07Y202540039ND
2020-11-30Y203380011ND
2021-03-10Y210700039ND
2021-05-19Y211400022ND
2021-05-19Y211400061ND
2021-08-30Y212450017ND
2021-09-13Y212590012ND
2021-11-17Y213230007ND
2021-11-17Y213220014ND
2022-03-02Y220620066ND
2022-03-28Y22090000439.3 ppb
2022-05-23Y22146005636.5 ppb
2022-05-23Y22146004445.1 ppb
2022-07-26Y22209001946.7 ppb
2022-08-23Y22237001873.9 ppb
2022-08-23Y22237001968.2 ppb
2022-11-14Y2232100197.40 ppb
2022-11-14Y2232100235.20 ppb
2023-02-14Y23047006873.8 ppb
2023-02-14Y23047006764.4 ppb
2023-05-30Y23152001448.6 ppb
2023-05-30Y23152002344.9 ppb
2023-09-06Y23250007032.8 ppb
2023-09-06Y23250007138.0 ppb
2023-10-24Y23299002012.1 ppb
2023-10-24Y23299002751.8 ppb