Know Your Environment. Protect Your Health.

Beryllium

Danbury Water Department

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND40ND
2023ND40ND

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

Date Lab ID Result
2018-04-12212690GEND
2018-04-12212687GEND
2018-10-12IOC1 200508940ND
2018-10-12IOC1 200508939ND
2019-04-11IOC1 200528182ND
2019-04-11IOC1 200528181ND
2020-08-20IOC1 200587330ND
2020-08-20IOC1 200587328ND
2021-04-15IOC1 200613295ND
2021-04-15IOC1 200613297ND
2022-06-07287329ND
2022-06-07287325ND
2022-06-07287323ND
2022-06-07287327ND
2023-01-12304532ND
2023-01-12304533ND
2023-05-15N3E0590-02PPSND
2023-05-15N3E0590-01PPSND