1,3-Butadiene
City of San Diego
12
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 | 6 | 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 |
|---|---|---|
| 2013-08-19 | 1308683-001F | ND |
| 2013-08-20 | 1308735-001F | ND |
| 2013-08-21 | 1308767-001F | ND |
| 2013-11-12 | 1311404-001F | ND |
| 2013-11-12 | 1311402-001F | ND |
| 2013-11-13 | 1311448-001F | ND |
| 2014-02-10 | 1402421-001F | ND |
| 2014-02-10 | 1402418-001F | ND |
| 2014-02-11 | 1402513-001F | ND |
| 2014-05-12 | 1405468-001F | ND |
| 2014-05-12 | 1405511-001F | ND |
| 2014-05-13 | 1405607-001F | ND |