Know Your Environment. Protect Your Health.

Chromium (total)

Midland-lonaconing

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019N/A00N/A
2020ND30ND
2021ND30ND
2022ND30ND
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
2018-04-25E18003836002ND
2018-04-25E18003836003ND
2018-04-25E18003836004ND
2020-05-27E20003663003ND
2020-05-27E20003663004ND
2020-05-27E20003663005ND
2021-05-18E21003364002ND
2021-05-18E21003364003ND
2021-05-18E21003364004ND
2022-08-30E2300046803ND
2022-08-30E2300046804ND
2022-08-30E2300046805ND