Know Your Environment. Protect Your Health.

Chromium (total)

Altoona 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.

 

14

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
2019N/A00N/A
20200.150 ppb61ND - 0.900 ppb
2021N/A00N/A
2022N/A00N/A
20231.49 ppb83ND - 8.40 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
2020-06-161193790ND
2020-06-161193786ND
2020-06-161193788ND
2020-06-161193789ND
2020-06-161193787ND
2020-06-1611937910.900 ppb
2023-01-25CB00795-018.40 ppb
2023-01-26CB00861-012.20 ppb
2023-07-31CB08782-04ND
2023-07-31CB08782-07ND
2023-07-31CB08782-01ND
2023-07-31CB08782-101.30 ppb
2023-08-01CB08877-04ND
2023-08-01CB08877-01ND