1,3-Butadiene
City of San Juan Capistrano
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 |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 10 | 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 |
|---|---|---|
| 2015-02-09 | 201502090611AM | ND |
| 2015-02-09 | 201502090610AM | ND |
| 2015-02-10 | 201502100865AM | ND |
| 2015-02-10 | 201502100863AM | ND |
| 2015-05-27 | 201505280160AM | ND |
| 2015-05-28 | 201505280162AM | ND |
| 2015-08-12 | 201508120617AM | ND |
| 2015-08-12 | 201508120619AM | ND |
| 2015-11-11 | 201511110623AM | ND |
| 2015-11-11 | 201511110602AM | ND |