1,3-Butadiene
Golden State Water Company (GSWC) - Norwalk
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 |
|---|---|---|---|---|
| 2013 | ND | 4 | 0 | ND |
| 2014 | ND | 8 | 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 |
|---|---|---|
| 2013-10-18 | 201310180541AM | ND |
| 2013-10-18 | 201310180545AM | ND |
| 2013-10-18 | 201310180543AM | ND |
| 2013-10-18 | 201310180547AM | ND |
| 2014-01-17 | 201401180029AM | ND |
| 2014-01-17 | 201401180031AM | ND |
| 2014-04-17 | 201404180109AM | ND |
| 2014-04-17 | 201404180113AM | ND |
| 2014-04-17 | 201404180111AM | ND |
| 2014-04-17 | 201404180115AM | ND |
| 2014-06-04 | 201406050293AM | ND |
| 2014-07-17 | 201407170807AM | ND |