1,3-Butadiene
Coastside County Water District
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 | 1 | 0 | ND |
| 2014 | ND | 6 | 0 | ND |
| 2015 | ND | 1 | 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 |
|---|---|---|
| 2013-12-11 | A3J1692-01A | ND |
| 2014-03-11 | A4B2102-01A | ND |
| 2014-03-11 | A4B2096-01A | ND |
| 2014-06-17 | A4E1990-01A | ND |
| 2014-06-17 | A4E1991-01A | ND |
| 2014-09-15 | A4H2149-01A | ND |
| 2014-12-30 | A4K1350-01A | ND |
| 2015-12-14 | A5L0325-01A | ND |