Know Your Environment. Protect Your Health.

Chromium (total)

Pennsylvania American Royersford

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
2018ND50ND
2019ND10ND
2020ND10ND
2021ND50ND
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
2018-08-1540647001ND
2018-08-1540647501ND
2018-08-1540647601ND
2018-08-1540648001ND
2018-08-1540646401ND
2019-08-0545831301ND
2020-08-0422792320.00ND
2021-08-1125016515.00ND
2021-08-1125016485.00ND
2021-08-1125016471.00ND
2021-08-1125016499.00ND
2021-10-1425398565.00ND
2022-08-0327227915.00ND
2023-08-1029491156.00ND