Know Your Environment. Protect Your Health.

Beryllium

Aquarion Water Company of Connecticut - Valley System

NOTE: Aquarion Water Company of Connecticut - Valley System purchases water from Regional Water Authority which is required to test for beryllium. Sample information shown below was taken by Regional Water Authority.

Beryllium is a toxic metal that is both naturally occurring and released into the environment from industrial pollution and incineration. Beryllium can damage lungs, bones and the digestive system.

 

62

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND100ND
2019ND30ND
2020ND90ND
2021ND110ND
2022ND30ND
2023ND100ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppb

The EWG Health Guideline of 1 ppb for beryllium was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to the stomach and intestines.

EPA Maximum Contaminant
Level (MCL): 4 ppb

The legal limit for beryllium, established in 1992, was based on a toxicity study in laboratory animals published in 1970. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

NOTE: Aquarion Water Company of Connecticut - Valley System purchases water from Regional Water Authority which is required to test for beryllium. Sample information shown below was taken by Regional Water Authority.

Date Lab ID Result
2018-03-12IOC1 200489766ND
2018-03-14IOC1 200489867ND
2018-03-14IOC1 200489870ND
2018-03-14IOC1 200489868ND
2018-03-14IOC1 200489884ND
2018-03-14IOC1 200489885ND
2018-03-14IOC1 200489871ND
2018-03-14IOC1 200489913ND
2018-03-14IOC1 200489914ND
2018-11-29IOC1 200514112ND
2019-03-18IOC1 200524895ND
2019-03-19IOC1 200525061ND
2019-03-19IOC1 200525098ND
2019-03-19IOC1 200525097ND
2019-03-19IOC1 200525078ND
2019-03-19IOC1 200525059ND
2019-03-19IOC1 200525057ND
2019-03-19IOC1 200525058ND
2019-03-19IOC1 200525060ND
2019-03-19IOC1 200525077ND
2019-05-08IOC1 200531297ND
2020-02-10IOC1 200565460ND
2020-02-11IOC1 200565593ND
2020-02-11IOC1 200565628ND
2020-02-11IOC1 200565628AND
2020-02-11IOC1 200565594ND
2020-02-11IOC1 200565625ND
2020-02-11IOC1 200565626ND
2020-02-11IOC1 200565627ND
2020-02-11IOC1 200565624ND
2021-02-09IOC1 200605933ND
2021-02-09IOC1 200606111ND
2021-02-09IOC1 200605959ND
2021-02-09IOC1 200606116ND
2021-02-09IOC1 200605888ND
2021-02-09IOC1 200605956ND
2021-02-09IOC1 200606109ND
2021-02-09IOC1 200606110ND
2021-02-09IOC1 200606114ND
2021-02-09IOC1 200605886ND
2021-02-17IOC1 200606909ND
2022-02-15E300145550 300145554ND
2022-02-15E300145718 300145722ND
2022-02-15E300145699 300145703ND
2022-02-15E300145575 300145579ND
2022-02-15E300145667 300145671ND
2022-02-15E300145647 300145651ND
2022-02-15E300146276 300146280ND
2022-02-15E300145514 300145518ND
2022-02-15E300145523 300145527ND
2022-02-15E300145532 300145536ND
2022-02-15E300145541 300145545ND
2023-02-06E300305466 300305496ND
2023-02-07E300305797 300305801ND
2023-02-14E300309461 300309465ND
2023-02-14E300309762 300309766ND
2023-02-14E300309452 300309456ND
2023-02-14E300309097 300309101ND
2023-02-14E300309470 300309474ND
2023-02-14E300309495 300309499ND
2023-02-14E300309531 300309535ND
2023-02-14E300309550 300309554ND