Beryllium
Aquarion Water Company of Connecticut - Greenwich System
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
---|---|---|
2014-04-01 | 201404200-IOC1 | ND |
2014-04-01 | 201404209-IOC1 | ND |
2015-04-07 | 201504250-IOC1 | ND |
2015-04-07 | 201504259-IOC1 | ND |
2016-06-07 | 201607107-IOC1 | ND |
2016-06-07 | 201607117-IOC1 | ND |
2017-04-03 | 201704556-IOC1 | ND |
2017-04-03 | 201704567-IOC1 | ND |
2018-04-02 | 201803873-IOC1 | ND |
2018-10-01 | 201815017-IOC1 | ND |
2019-04-01 | 201904114-IOC1 | ND |
2019-04-01 | 201904109-IOC1 | ND |