1,3-Butadiene
California Water Service - Bear Gulch
8
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 | 1 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 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 |
|---|---|---|
| 2013-05-07 | 201305080320AM | ND |
| 2013-05-07 | 201305080423AM | ND |
| 2013-08-07 | 201308080274AM | ND |
| 2013-11-04 | 201311050103AM | ND |
| 2014-02-03 | 201402040316AM | ND |
| 2015-02-18 | 201502200425AM | ND |
| 2015-04-08 | 201504090141AM | ND |
| 2015-05-11 | 201505120353AM | ND |