Know Your Environment. Protect Your Health.

Chromium (total)

City of Ammon

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
20191.33 ppb64ND - 2.00 ppb
2020N/A00N/A
2021N/A00N/A
2022ND10ND
20233.33 ppb333.00 ppb - 4.00 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
2019-06-10NT1906114022.00 ppb
2019-06-10NT1906114062.00 ppb
2019-06-10IT1906114062.00 ppb
2019-06-10IT1906114022.00 ppb
2019-07-01IT190700504ND
2019-07-16NT190723802ND
2022-06-21IT220637002ND
2023-09-05IT2309014014.00 ppb
2023-09-05IT2309032013.00 ppb
2023-09-05IT2309036013.00 ppb