Know Your Environment. Protect Your Health.

Chromium (total)

Dixie Overland Water System

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019N/A00N/A
2020N/A00N/A
2021ND50ND
2022ND40ND
2023ND40ND

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
2018-04-1635386971002ND
2018-04-1635386971003ND
2018-04-1635386971004ND
2018-04-1635386971001ND
2018-04-1635386971002ND
2018-04-1635386971003ND
2018-04-1635386971004ND
2018-04-1635386971001ND
2021-05-20B2102342-003ND
2021-05-20B2102342-006ND
2021-05-20B2102342-004ND
2021-05-20B2102342-002ND
2021-05-20B2102342-001ND
2022-01-04B2200041-001ND
2022-04-08B2201813-001ND
2022-07-20B2203482-001ND
2022-10-24B2205228-001ND
2023-03-22B2301491-001ND
2023-04-18B2301637-001ND
2023-08-01B2303111-001ND
2023-11-02B2304868-001ND