Beryllium
California Water Service Company - Dixon
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 | 0.00175 ppb | 8 | 3 | ND - 0.00700 ppb |
2016 | ND | 11 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-05-20 | 5810-003-1142 | ND |
2015-02-11 | 5810-006-1003 | ND |
2015-02-11 | 5810-002-1343 | ND |
2015-04-15 | 5701-007-1441 | 0.00700 ppb |
2015-05-11 | 5810-005-1356 | ND |
2015-05-11 | 5701-007-0942 | 0.00600 ppb |
2015-06-08 | 5701-007-1255 | 0.001000 ppb |
2015-12-31 | 5701-008-1436 | ND |
2015-12-31 | 5701-015-1438 | ND |
2016-01-01 | 5701-008-1500 | ND |
2016-01-01 | 5701-015-1502 | ND |
2016-01-12 | 5701-015-1421 | ND |
2016-01-26 | 5701-015-1400 | ND |
2016-03-03 | 5701-015-1458 | ND |
2016-03-14 | 5810-008-1402 | ND |
2016-03-23 | 5701-015-1359 | ND |
2016-04-05 | 5701-015-1052 | ND |
2016-05-03 | 5701-015-1400 | ND |
2016-06-13 | 9590-020-1700 | ND |
2016-09-12 | 5810-017-1415 | ND |
2017-05-02 | 5701-015-1131 | ND |
2017-09-12 | 5810-017-1454 | ND |
2017-12-14 | 5701-015-1048 | ND |
2018-02-06 | 5701-015-1155 | ND |
2018-09-13 | 5810-002-1227 | ND |
2019-03-05 | 5701-015-1039 | ND |
2019-03-20 | 5810-008-1352 | ND |