Beryllium
Foothill Estates Ws
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 | 0.00280 ppb | 5 | 3 | ND - 0.00600 ppb |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 1 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-07-10 | 5701-001-1055 | 0.00500 ppb |
2014-07-10 | 5701-002-1052 | 0.00600 ppb |
2014-08-26 | 9590-001-1445 | ND |
2014-08-26 | 9590-002-1423 | ND |
2014-11-19 | 5701-002-1318 | 0.00300 ppb |
2016-11-29 | 5701-002-1341 | ND |
2017-08-30 | 9590-002-1409 | ND |
2017-11-30 | 9590-001-1358 | ND |
2017-12-07 | 5701-002-1458 | ND |
2018-12-18 | 5701-002-1601 | ND |