Beryllium
Mesa Water District
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 1 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 10 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-08-04 | 4417-007-0930 | ND |
2015-02-09 | 4417-008-0745 | ND |
2016-02-10 | 4417-010-1025 | ND |
2016-05-09 | 4417-012-1015 | ND |
2016-05-11 | 4417-014-0820 | ND |
2016-06-16 | 4417-006-0940 | ND |
2016-09-20 | 4417-006-0915 | ND |
2017-02-21 | 4417-040-0850 | ND |
2017-05-08 | 4417-008-0810 | ND |
2017-05-08 | 4417-040-0930 | ND |
2017-06-20 | 4417-006-0810 | ND |
2017-07-12 | 4417-006-1100 | ND |
2017-08-24 | 4417-040-0835 | ND |
2017-10-02 | 4417-040-0810 | ND |
2017-10-12 | 4417-007-0810 | ND |
2017-10-30 | 4417-006-0740 | ND |
2017-11-09 | 4417-007-0740 | ND |
2018-03-07 | 4417-006-0940 | ND |
2019-05-20 | 4417-010-0955 | ND |
2019-05-29 | 4417-014-0810 | ND |
2019-07-29 | 4417-012-0820 | ND |