1,3-Butadiene
Madison Water Utility
44
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 44 | 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 |
|---|---|---|
| 2015-03-09 | 3201773 | ND |
| 2015-03-09 | 3201834 | ND |
| 2015-03-09 | 3201693 | ND |
| 2015-03-09 | 3201753 | ND |
| 2015-03-09 | 3201823 | ND |
| 2015-03-09 | 3201812 | ND |
| 2015-03-09 | 3201801 | ND |
| 2015-03-10 | 3202389 | ND |
| 2015-03-10 | 3202306 | ND |
| 2015-03-10 | 3202357 | ND |
| 2015-03-10 | 3202433 | ND |
| 2015-03-10 | 3202317 | ND |
| 2015-03-10 | 3202477 | ND |
| 2015-03-10 | 3202418 | ND |
| 2015-03-10 | 3202328 | ND |
| 2015-03-11 | 3203974 | ND |
| 2015-05-19 | 3245233 | ND |
| 2015-05-19 | 3245222 | ND |
| 2015-05-21 | 3248062 | ND |
| 2015-05-27 | 3250685 | ND |
| 2015-07-08 | 3276586 | ND |
| 2015-07-21 | 3284356 | ND |
| 2015-09-01 | 3313064 | ND |
| 2015-09-14 | 3321389 | ND |
| 2015-09-14 | 3321415 | ND |
| 2015-09-15 | 3322670 | ND |
| 2015-09-15 | 3322634 | ND |
| 2015-09-15 | 3322757 | ND |
| 2015-09-15 | 3322694 | ND |
| 2015-09-15 | 3322735 | ND |
| 2015-09-15 | 3322683 | ND |
| 2015-09-15 | 3322783 | ND |
| 2015-09-15 | 3322823 | ND |
| 2015-09-15 | 3322871 | ND |
| 2015-09-15 | 3322851 | ND |
| 2015-09-15 | 3322746 | ND |
| 2015-09-16 | 3324051 | ND |
| 2015-09-16 | 3323902 | ND |
| 2015-09-16 | 3324081 | ND |
| 2015-09-16 | 3323939 | ND |
| 2015-09-16 | 3323924 | ND |
| 2015-09-16 | 3323913 | ND |
| 2015-09-16 | 3324021 | ND |
| 2015-12-29 | 3380098 | ND |