Know Your Environment. Protect Your Health.

Chromium (total)

Aqua Pa West Chester

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.37 ppb331.10 ppb - 7.20 ppb
20192.30 ppb112.30 ppb
2020ND10ND
20210.753 ppb32ND - 1.30 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
2018-01-29AF744447.20 ppb
2018-02-22AF770121.80 ppb
2018-03-22AF780701.10 ppb
2019-02-21AG094822.30 ppb
2020-01-1621495554.00ND
2021-07-1424820973.00ND
2021-08-1625396938.001.30 ppb
2021-08-1825396928.000.960 ppb
2022-01-2025934806.00ND
2023-03-2328514110.00ND