Know Your Environment. Protect Your Health.

Chromium (total)

Lincoln Psd

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
20200.700 ppb31ND - 2.10 ppb
20213.80 ppb113.80 ppb
20222.30 ppb112.30 ppb
20234.50 ppb114.50 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
2018-12-1118121167-03AND
2019-05-1319051755-03AND
2020-02-247318905002ND
2020-02-247318905002ND
2020-11-0973499270062.10 ppb
2021-10-1873939230033.80 ppb
2022-10-18305307380032.30 ppb
2023-11-29306427940044.50 ppb