1,3-Butadiene
City of Norco
14
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 | 7 | 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 |
|---|---|---|
| 2014-08-12 | B4H1135-01 | ND |
| 2014-08-13 | B4H1422-03 | ND |
| 2014-08-13 | B4H1422-01 | ND |
| 2014-08-20 | B4H2037-03 | ND |
| 2014-08-20 | B4H2037-05 | ND |
| 2014-08-20 | B4H2037-01 | ND |
| 2014-11-10 | B4K0871-01 | ND |
| 2015-02-03 | B5B0293-09 | ND |
| 2015-02-03 | B5B0293-01 | ND |
| 2015-02-03 | B5B0304-01 | ND |
| 2015-02-03 | B5B0293-05 | ND |
| 2015-02-03 | B5B0293-03 | ND |
| 2015-02-10 | B5B0924-01 | ND |
| 2015-05-05 | B5E0286-01 | ND |