Beryllium
California Water Service Co-lake Hughes
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 | ND | 1 | 0 | ND |
2015 | 1.75 ppb | 2 | 1 | ND - 3.50 ppb |
2016 | ND | 5 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 5 | 0 | ND |
2019 | ND | 5 | 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 |
---|---|---|
2014-10-01 | 5701-001-1322 | ND |
2015-07-08 | 5810-005-1418 | ND |
2015-07-08 | 5810-001-1330 | 3.50 ppb |
2016-04-06 | 5810-008-1251 | ND |
2016-04-25 | 5810-008-1340 | ND |
2016-04-25 | 5810-008-1440 | ND |
2016-07-12 | 5701-005-1458 | ND |
2016-10-18 | 5701-008-1135 | ND |
2017-04-11 | 5701-008-1315 | ND |
2017-07-11 | 5701-008-1145 | ND |
2017-07-20 | 5701-008-1530 | ND |
2017-10-24 | 5701-008-1431 | ND |
2018-01-10 | 5701-008-1559 | ND |
2018-04-10 | 5701-008-1436 | ND |
2018-07-10 | 5701-008-1238 | ND |
2018-07-11 | 5810-001-1431 | ND |
2018-07-18 | 5810-005-1313 | ND |
2019-01-15 | 5701-008-1326 | ND |
2019-04-11 | 5810-008-1230 | ND |
2019-04-16 | 5701-008-1141 | ND |
2019-10-08 | 5701-008-0948 | ND |
2019-10-22 | 5701-008-1040 | ND |