1,3-Butadiene
Co Water District of Billings Heights
NOTE: Co Water District of Billings Heights purchases water from City of Billings which is required to test for 1,3-butadiene. Sample information shown below was taken by City of Billings.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 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
NOTE: Co Water District of Billings Heights purchases water from City of Billings which is required to test for 1,3-butadiene. Sample information shown below was taken by City of Billings.
| Date | Lab ID | Result |
|---|---|---|
| 2013-02-12 | 704968-8092 | ND |
| 2013-05-07 | 718174-8781 | ND |
| 2013-08-13 | 737612-9513 | ND |
| 2013-11-04 | 757057-10235 | ND |