Beryllium
California Water Service Company - Dominguez
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 | 0.001000 ppb | 3 | 1 | ND - 0.00300 ppb |
2015 | ND | 1 | 0 | ND |
2016 | ND | 6 | 0 | ND |
2017 | ND | 6 | 0 | ND |
2018 | ND | 3 | 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 |
---|---|---|
2014-07-09 | 5701-050-1340 | 0.00300 ppb |
2014-08-27 | 5810-016-1310 | ND |
2014-10-08 | 5810-019-1022 | ND |
2015-03-25 | 9590-018-1355 | ND |
2016-01-13 | 5810-023-1320 | ND |
2016-03-23 | 9590-018-1340 | ND |
2016-05-11 | 5810-036-1140 | ND |
2016-07-13 | 5810-050-1335 | ND |
2016-09-07 | 5810-004-1300 | ND |
2016-12-28 | 9590-019-0930 | ND |
2017-03-08 | 9590-019-1430 | ND |
2017-08-23 | 5810-016-1212 | ND |
2017-08-23 | 5810-019-1100 | ND |
2017-10-11 | 9590-036-1335 | ND |
2017-10-16 | 9590-805-1030 | ND |
2017-12-26 | 5810-024-1315 | ND |
2018-08-08 | 5810-018-1130 | ND |
2018-12-04 | 5810-022-1120 | ND |
2018-12-04 | 5810-016-1205 | ND |
2019-01-09 | 5810-023-1100 | ND |
2019-02-21 | 9590-065-1345 | ND |
2019-03-20 | 5810-024-1210 | ND |
2019-05-22 | 5810-036-1415 | ND |
2019-07-17 | 5810-050-1243 | ND |
2019-09-23 | 5810-004-1340 | ND |