Know Your Environment. Protect Your Health.

Chromium (total)

Western Berks Water Authority

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.00 ppb113.00 ppb
20191.000 ppb111.000 ppb
20202.00 ppb112.00 ppb
20211.000 ppb21ND - 2.00 ppb
2022ND10ND
2023ND10ND

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
2018-01-158012166-013.00 ppb
2019-01-019010433-011.000 ppb
2020-02-1121707134.002.00 ppb
2021-01-1223753448.00ND
2021-02-1623926773.002.00 ppb
2022-01-1925982594.00ND
2023-01-0428212559.00ND