Beryllium
Cassatt Water Kershaw-lee Company RWA
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 | 11 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 12 | 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 |
---|---|---|
2014-01-22 | AD34864 | ND |
2016-04-19 | AD74643 | ND |
2016-04-19 | AD74641 | ND |
2016-04-19 | AD74642 | ND |
2016-04-19 | AD74644 | ND |
2016-04-25 | AD74830 | ND |
2016-04-25 | AD74829 | ND |
2016-04-25 | AD74832 | ND |
2016-04-25 | AD74828 | ND |
2016-04-25 | AD74831 | ND |
2016-09-15 | AD82548 | ND |
2016-09-19 | AD82888 | ND |
2017-06-29 | AD96924 | ND |
2019-04-24 | AE29258 | ND |
2019-04-24 | AE29260 | ND |
2019-04-24 | AE29257 | ND |
2019-04-24 | AE29261 | ND |
2019-05-01 | AE29682 | ND |
2019-05-01 | AE29684 | ND |
2019-05-01 | AE29685 | ND |
2019-05-01 | AE29686 | ND |
2019-05-01 | AE29691 | ND |
2019-05-01 | AE29688 | ND |
2019-05-01 | AE29692 | ND |
2019-05-01 | AE29689 | ND |