Beryllium
Cabot Waterworks
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 | 1 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 3 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-04-02 | 140930018 | ND |
2016-08-15 | Y162310021 | ND |
2016-11-02 | Y163130006 | ND |
2016-11-14 | Y163220008 | ND |
2017-01-10 | Y170130021 | ND |
2017-02-06 | Y170400030 | ND |
2017-06-05 | Y171580099 | ND |
2017-07-05 | Y171870083 | ND |
2017-10-02 | Y172780043 | ND |
2018-02-26 | Y180600037 | ND |
2018-04-18 | Y181090031 | ND |
2019-01-07 | Y190110011 | ND |