Know Your Environment. Protect Your Health.

Chromium (total)

Aquarion Water Company of Connecticut - Main System

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND60ND
2020ND80ND
2021ND60ND
2022ND60ND
2023ND60ND

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
2018-02-05201801570-IOC1ND
2018-02-05201801604-IOC1ND
2018-02-05201801603-IOCRND
2018-02-05201801571-IOCRND
2018-02-05201801587-IOCRND
2018-02-05201801586-IOC1ND
2019-02-04201901554-IOC1ND
2019-02-04201901581-IOC1ND
2019-02-04201901613-IOC1ND
2019-02-04201901614-IOCRND
2019-02-04201901582-IOCRND
2019-02-04201901553-IOCRND
2020-02-03202001681-IOC1ND
2020-02-03202001624-IOC1ND
2020-02-03202001640-IOC1ND
2020-02-03202001641-IOCRND
2020-02-03202001625-IOCRND
2020-02-03202001680-IOCRND
2020-07-07202010253-IOC1ND
2020-07-07202010259-IOC1ND
2021-02-02202101448-IOC1ND
2021-02-02202101394-IOC1ND
2021-02-02202101406-IOC1ND
2021-02-02202101407-IOCRND
2021-02-02202101395-IOCRND
2021-02-02202101447-IOCRND
2022-02-07202202033-IOC1ND
2022-02-07202202089-IOCRND
2022-02-07202202023-IOCRND
2022-02-07202202034-IOCRND
2022-02-07202202022-IOC1ND
2022-02-07202202090-IOC1ND
2023-02-06202301854-IOC1ND
2023-02-06202301775-IOC1ND
2023-02-06202301771-IOCRND
2023-02-06202301853-IOCRND
2023-02-09202302139-IOC1ND
2023-02-09202302140-IOCRND