Beryllium
Yorktown Water
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 | 6 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 1 | 0 | ND |
2017 | ND | 7 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 6 | 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 |
---|---|---|
2014-08-11 | 142260006 | ND |
2014-08-11 | 142260004 | ND |
2014-08-11 | 142260009 | ND |
2014-08-11 | 142260005 | ND |
2014-08-11 | 142260008 | ND |
2014-08-11 | 142260007 | ND |
2016-11-02 | Y163090002 | ND |
2017-08-07 | Y172220010 | ND |
2017-08-07 | Y172220009 | ND |
2017-08-07 | Y172220008 | ND |
2017-08-07 | Y172220007 | ND |
2017-08-07 | Y172220006 | ND |
2017-08-07 | Y172220005 | ND |
2017-11-13 | Y173200012 | ND |
2018-01-02 | Y180040036 | ND |
2018-05-29 | Y181510041 | ND |
2018-08-20 | Y182350025 | ND |
2018-11-19 | Y183250006 | ND |
2019-02-26 | Y190590035 | ND |
2019-05-06 | Y191290092 | ND |
2019-06-24 | Y191790277 | ND |
2019-09-17 | Y192630017 | ND |
2019-10-15 | Y192900003 | ND |
2019-11-19 | Y193250110 | ND |