Beryllium
Walnut Grove Utilities
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 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 3 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 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 |
---|---|---|
2016-12-21 | 16122769-01AA | ND |
2016-12-21 | 16122770-01AA | ND |
2016-12-21 | 16122773-01AA | ND |
2017-09-11 | 273852-2017-DW | ND |
2017-09-11 | 273855-2017-DWA | ND |
2018-08-15 | 292292-2018-DWI | ND |
2018-10-16 | 295670-2018-DW | ND |
2019-02-26 | 301436-2019-DW | ND |
2019-02-26 | 301437-2019-DWI | ND |
2019-03-05 | 301698-2019-DW | ND |
2019-03-05 | 301699-2019-DWI | ND |
2019-03-12 | 302099-2019-DW | ND |
2019-03-12 | 302100-2019-DW | ND |