Beryllium
California Water Service - South San Francisco
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 0.001000 ppb | 17 | 9 | ND - 0.00300 ppb |
2015 | 0.00195 ppb | 21 | 7 | ND - 0.01000 ppb |
2016 | ND | 30 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-05-05 | 5701-009-1102 | ND |
2014-05-05 | 5701-014-1049 | ND |
2014-05-05 | 5701-013-1051 | ND |
2014-06-04 | 5701-014-0923 | 0.001000 ppb |
2014-06-04 | 5701-009-0822 | 0.001000 ppb |
2014-06-04 | 5701-010-0841 | 0.00300 ppb |
2014-07-15 | 5701-009-1347 | ND |
2014-07-15 | 5701-010-1356 | 0.00300 ppb |
2014-08-18 | 5701-009-1118 | 0.001000 ppb |
2014-08-18 | 5701-013-1121 | 0.00200 ppb |
2014-08-18 | 5701-010-1145 | 0.00200 ppb |
2014-09-25 | 5701-014-1403 | ND |
2014-10-02 | 5701-010-1107 | ND |
2014-10-02 | 5701-009-1103 | ND |
2014-10-16 | 5810-007-0952 | ND |
2014-11-04 | 5701-013-1107 | 0.001000 ppb |
2014-11-04 | 5701-009-1105 | 0.00300 ppb |
2015-01-07 | 5701-010-1106 | 0.00500 ppb |
2015-01-07 | 5701-009-1058 | ND |
2015-02-03 | 5701-010-1100 | ND |
2015-02-03 | 5701-009-1047 | ND |
2015-02-03 | 5701-013-1052 | ND |
2015-03-03 | 5701-009-1353 | ND |
2015-03-03 | 5701-010-1403 | ND |
2015-04-07 | 5701-009-1405 | 0.01000 ppb |
2015-04-07 | 5701-010-1430 | 0.00600 ppb |
2015-06-02 | 5701-010-1017 | 0.00300 ppb |
2015-06-25 | 5810-006-1347 | ND |
2015-06-25 | 5810-003-1338 | ND |
2015-07-21 | 5701-009-0951 | 0.00600 ppb |
2015-07-21 | 5701-011-0949 | 0.00500 ppb |
2015-07-21 | 5701-010-1006 | 0.00600 ppb |
2015-12-01 | 5701-009-1340 | ND |
2015-12-01 | 5701-011-1338 | ND |
2015-12-01 | 5701-010-1346 | ND |
2015-12-17 | 5701-009-0754 | ND |
2015-12-17 | 5701-011-0752 | ND |
2015-12-17 | 5701-010-0802 | ND |
2016-01-26 | 5701-011-1016 | ND |
2016-01-26 | 5701-009-1018 | ND |
2016-01-26 | 5701-010-1137 | ND |
2016-02-02 | 5701-014-1406 | ND |
2016-02-02 | 5701-009-1043 | ND |
2016-02-02 | 5701-013-1059 | ND |
2016-02-02 | 5701-011-1042 | ND |
2016-02-02 | 5701-010-1108 | ND |
2016-02-16 | 5701-011-0733 | ND |
2016-02-16 | 5701-009-0735 | ND |
2016-02-16 | 5701-010-0931 | ND |
2016-05-05 | 5701-011-1129 | ND |
2016-05-05 | 5701-010-1055 | ND |
2016-05-05 | 5701-009-1130 | ND |
2016-05-05 | 5701-013-1117 | ND |
2016-05-05 | 5701-014-1118 | ND |
2016-05-17 | 5701-011-0844 | ND |
2016-05-17 | 5701-009-0845 | ND |
2016-05-17 | 5701-010-0900 | ND |
2016-05-23 | 5701-011-0807 | ND |
2016-05-23 | 5701-009-0808 | ND |
2016-05-23 | 5701-010-1002 | ND |
2016-06-06 | 5701-011-1048 | ND |
2016-06-06 | 5701-009-1050 | ND |
2016-06-06 | 5701-010-1329 | ND |
2016-06-07 | 5810-014-1352 | ND |
2016-06-07 | 5810-013-1337 | ND |
2016-07-21 | 5810-014-1020 | ND |
2016-08-24 | 5810-013-1035 | ND |
2016-11-29 | 5701-013-1001 | ND |
2017-11-28 | 5701-013-1207 | ND |
2017-11-28 | 5701-008-1500 | ND |
2017-11-28 | 5701-014-1056 | ND |
2017-12-05 | 5810-008-1320 | ND |