1,3-Butadiene
City of Gilroy
17
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 | 17 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2014-01-14 | A3L2052-09A | ND |
| 2014-01-14 | A3L2052-11A | ND |
| 2014-01-14 | A3L2052-05A | ND |
| 2014-01-14 | A3L2052-17A | ND |
| 2014-01-14 | A3L2052-15A | ND |
| 2014-01-14 | A3L2052-07A | ND |
| 2014-01-14 | A3L2052-03A | ND |
| 2014-03-24 | A4C1501-01A | ND |
| 2014-05-29 | A4E2213-01A | ND |
| 2014-07-08 | A4F1134-07A | ND |
| 2014-07-08 | A4F1134-10A | ND |
| 2014-07-08 | A4F1134-22A | ND |
| 2014-07-08 | A4F1134-01A | ND |
| 2014-07-08 | A4F1134-16A | ND |
| 2014-07-08 | A4F1134-13A | ND |
| 2014-08-04 | A4G2633-01A | ND |
| 2014-09-16 | A4I0774-01A | ND |