1,3-Butadiene
City of San Clemente
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 | 4 | 0 | ND |
| 2015 | ND | 2 | 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 |
|---|---|---|
| 2013-09-11 | 3I11048-03A | ND |
| 2013-09-11 | 3I11048-01A | ND |
| 2013-12-09 | 3L09134-03A | ND |
| 2013-12-09 | 3L09134-01A | ND |
| 2014-03-10 | 4C10057-03A | ND |
| 2014-03-10 | 4C10057-01A | ND |
| 2014-06-18 | 4F18051-03A | ND |
| 2014-06-18 | 4F18051-01A | ND |
| 2015-07-29 | 5G29085-01A | ND |
| 2015-12-02 | 5L02070-01A | ND |