Know Your Environment. Protect Your Health.

Chromium (total)

Buckner 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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
202215.4 ppb43ND - 30.9 ppb
20237.90 ppb332.80 ppb - 13.8 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
2018-03-20Y180810019ND
2018-05-29Y181510040ND
2018-08-13Y182280035ND
2018-10-16Y182910037ND
2019-02-25Y190590032ND
2019-05-29Y191530066ND
2019-08-12Y192270030ND
2019-11-05Y193110049ND
2020-01-21Y200240033ND
2020-05-26Y201500014ND
2020-08-24Y202400005ND
2020-11-17Y203240057ND
2021-02-23Y210560028ND
2021-04-19Y211110033ND
2021-07-26Y212100034ND
2021-11-16Y213230005ND
2022-02-14Y220480065ND
2022-04-26Y22119000128.1 ppb
2022-08-15Y22230003830.9 ppb
2022-11-15Y2232100222.50 ppb
2023-01-10Y2301200722.80 ppb
2023-05-30Y23152003313.8 ppb
2023-08-29Y2324200247.10 ppb