1,3-Butadiene
Golden State Water Company (GSWC) - South San Gabriel
10
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | ND | 4 | 0 | ND |
| 2014 | ND | 6 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 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 0.0103 ppb
The EWG Health Guideline of 0.0103 ppb for 1,3-butadiene was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2013-12-18 | 3L19004-01A | ND |
| 2013-12-18 | 3L19004-07A | ND |
| 2013-12-18 | 3L19004-03A | ND |
| 2013-12-18 | 3L19004-05A | ND |
| 2014-03-18 | 4C18022-01A | ND |
| 2014-06-24 | 4F24036-01A | ND |
| 2014-06-24 | 4F24036-03A | ND |
| 2014-06-30 | 4F30035-01A | ND |
| 2014-09-30 | 4I30020-01A | ND |
| 2014-10-08 | 4J08066-01A | ND |