1,3-Butadiene
City of Winston-Salem
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 |
|---|---|---|---|---|
| 2014 | ND | 9 | 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 |
|---|---|---|
| 2014-04-23 | 4D24042-05A | ND |
| 2014-06-04 | 4F05021-01A | ND |
| 2014-06-04 | 4F05021-03A | ND |
| 2014-07-23 | 4G24031-05A | ND |
| 2014-07-23 | 4G24031-01A | ND |
| 2014-07-23 | 4G24031-03A | ND |
| 2014-10-14 | 4J15020-05A | ND |
| 2014-10-14 | 4J15020-01A | ND |
| 2014-10-14 | 4J15020-03A | ND |
| 2015-01-06 | 5A07065-03A | ND |
| 2015-01-06 | 5A07065-05A | ND |
| 2015-01-06 | 5A07065-01A | ND |