1,3-Butadiene
City of Torrance Water Department
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 | ND | 7 | 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 |
|---|---|---|
| 2014-04-30 | 4D30063-05A | ND |
| 2014-04-30 | 4D30063-07A | ND |
| 2014-04-30 | 4D30063-01A | ND |
| 2014-04-30 | 4D30063-03A | ND |
| 2014-07-30 | 4G30080-01A | ND |
| 2014-10-28 | 4J28082-01A | ND |
| 2014-11-25 | 4K25091-01A | ND |
| 2015-01-28 | 5A28062-01A | ND |
| 2015-03-30 | 5C30051-03A | ND |
| 2015-03-30 | 5C30051-01A | ND |