1,3-Butadiene
Jefferson County PWSD 3
NOTE: Jefferson County PWSD 3 purchases water from Missouri American St. Louis County & St. Charles County which is required to test for 1,3-butadiene. Sample information shown below was taken by Missouri American St. Louis County & St. Charles County.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | ND | 4 | 0 | ND |
| 2014 | N/A | 0 | 0 | N/A |
| 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
NOTE: Jefferson County PWSD 3 purchases water from Missouri American St. Louis County & St. Charles County which is required to test for 1,3-butadiene. Sample information shown below was taken by Missouri American St. Louis County & St. Charles County.
| Date | Lab ID | Result |
|---|---|---|
| 2013-02-05 | 21020101 | ND |
| 2013-02-05 | 21019901 | ND |
| 2013-02-05 | 21018301 | ND |
| 2013-02-06 | 21016401 | ND |
| 2013-02-06 | 21017401 | ND |
| 2013-05-09 | 21798501 | ND |
| 2013-05-09 | 21801001 | ND |
| 2013-05-09 | 21801201 | ND |
| 2013-05-09 | 21797501 | ND |
| 2013-05-09 | 21799401 | ND |
| 2013-08-08 | 23171901 | ND |
| 2013-08-08 | 23172801 | ND |
| 2013-08-08 | 23174601 | ND |
| 2013-08-08 | 23174401 | ND |
| 2013-08-08 | 23170901 | ND |
| 2013-11-05 | 23933501 | ND |
| 2013-11-05 | 23931601 | ND |
| 2013-11-06 | 23932601 | ND |
| 2013-11-06 | 23935301 | ND |
| 2013-11-06 | 23935101 | ND |