1,3-Butadiene
City of Sunnyvale
19
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 | 18 | 0 | ND |
| 2015 | ND | 1 | 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 |
|---|---|---|
| 2014-02-05 | A4A1602-29A | ND |
| 2014-02-05 | A4A1602-17A | ND |
| 2014-02-05 | A4A1602-01A | ND |
| 2014-02-05 | A4A1602-05A | ND |
| 2014-02-05 | A4A1602-21A | ND |
| 2014-02-05 | A4A1602-25A | ND |
| 2014-05-14 | A4D2337-06A | ND |
| 2014-05-14 | A4D2337-01A | ND |
| 2014-08-13 | A4G2524-06A | ND |
| 2014-08-13 | A4G2524-01A | ND |
| 2014-08-13 | A4G2523-01A | ND |
| 2014-08-13 | A4G2523-11A | ND |
| 2014-08-13 | A4G2523-06A | ND |
| 2014-08-13 | A4G2523-16A | ND |
| 2014-08-13 | A4G2523-21A | ND |
| 2014-08-13 | A4G2523-26A | ND |
| 2014-11-12 | A4J1615-01A | ND |
| 2014-11-12 | A4J1615-06A | ND |
| 2015-10-28 | A5J1654-01A | ND |