Know Your Environment. Protect Your Health.

Chromium (total)

New Britain Water Department

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND50ND
2020ND50ND
2021ND50ND
2022ND50ND
2023ND20ND

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
2018-04-16IOCR 200492150ND
2018-04-16IOCR 200492148ND
2018-04-16IOCR 200492149ND
2018-04-16IOCR 200492147ND
2018-06-20IOC1 200497534ND
2018-06-20IOCR 200497534ND
2019-04-25IOCR 200529606BND
2019-04-25IOCR 200529609END
2019-04-25IOCR 200529607CND
2019-04-25IOCR 200529608DND
2019-06-12IOC1 200535995ND
2020-04-22IOCR 200573267ND
2020-04-22IOCR 200573266ND
2020-04-22IOCR 200573268ND
2020-04-22IOCR 200573265ND
2020-06-11IOC1 200578892ND
2021-04-20IOCR 200613888ND
2021-04-20IOCR 200613891ND
2021-04-20IOCR 200613889ND
2021-04-20IOCR 200613890ND
2021-06-16IOC1 200621205ND
2022-04-20I300172305 300172308ND
2022-04-20I300172334 300172337ND
2022-04-20I300172312 300172315ND
2022-04-20I300172319 300172327ND
2022-06-28E300204043 300204047ND
2023-04-17E300334310 300334313ND
2023-06-13E300364610 300364613ND