Beryllium
Atascadero Mutual Water Company
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 | 2 | 0 | ND |
2016 | ND | 13 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 13 | 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 |
---|---|---|
2014-05-08 | 3761-042-1030 | ND |
2015-06-04 | 3761-020-0845 | ND |
2015-09-03 | 3761-016-0845 | ND |
2016-02-11 | 3761-023-0840 | ND |
2016-02-11 | 3761-044-1012 | ND |
2016-04-28 | 3761-001-1010 | ND |
2016-04-28 | 3761-015-0920 | ND |
2016-04-28 | 3761-050-0910 | ND |
2016-05-03 | 3761-006-0915 | ND |
2016-07-05 | 3761-012-0820 | ND |
2016-07-05 | 3761-018-0840 | ND |
2016-07-05 | 3761-007-1030 | ND |
2016-07-28 | 3761-053-0825 | ND |
2016-07-28 | 3761-009-0750 | ND |
2016-07-28 | 3761-054-0845 | ND |
2016-07-28 | 3761-040-0805 | ND |
2017-05-16 | 3761-042-1005 | ND |
2018-06-07 | 3761-020-1015 | ND |
2018-09-13 | 3761-016-0850 | ND |
2019-02-12 | 3761-023-0900 | ND |
2019-02-14 | 3761-044-0948 | ND |
2019-04-16 | 3761-001-0900 | ND |
2019-04-16 | 3761-015-0845 | ND |
2019-05-09 | 3761-006-0835 | ND |
2019-05-16 | 3761-050-0755 | ND |
2019-07-18 | 3761-040-0940 | ND |
2019-07-18 | 3761-018-1010 | ND |
2019-07-18 | 3761-012-1018 | ND |
2019-07-18 | 3761-009-0835 | ND |
2019-07-18 | 3761-053-0905 | ND |
2019-07-18 | 3761-007-0950 | ND |
2019-07-18 | 3761-054-0930 | ND |