Know Your Environment. Protect Your Health.

Chromium (total)

Clayton Water Supply Corporation Plant 2

NOTE: Clayton Water Supply Corporation Plant 2 purchases water from City of Carthage which is required to test for chromium (total). Sample information shown below was taken by City of Carthage.

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
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

NOTE: Clayton Water Supply Corporation Plant 2 purchases water from City of Carthage which is required to test for chromium (total). Sample information shown below was taken by City of Carthage.

Date Lab ID Result
2018-02-14Q1806322002ND
2019-02-05Q1905209003ND
2020-03-11Q2010299002ND
2021-02-24Q2104964002ND
2022-01-26Q2202696002ND
2023-02-13Q2305514003ND