1,3-Butadiene
Clear Lake City Water Authority
22
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 | 18 | 0 | ND |
| 2014 | ND | 4 | 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 |
|---|---|---|
| 2013-04-09 | 713558-8572 | ND |
| 2013-04-09 | 713556-8572 | ND |
| 2013-04-09 | 713544-8572 | ND |
| 2013-04-09 | 713560-8572 | ND |
| 2013-04-09 | 713562-8572 | ND |
| 2013-04-09 | 713542-8572 | ND |
| 2013-04-09 | 713554-8572 | ND |
| 2013-07-10 | 730595-9308 | ND |
| 2013-07-10 | 730591-9308 | ND |
| 2013-07-10 | 730593-9308 | ND |
| 2013-07-10 | 730585-9308 | ND |
| 2013-10-08 | 751262-10003 | ND |
| 2013-10-08 | 751296-10003 | ND |
| 2013-10-08 | 751275-10019 | ND |
| 2013-10-08 | 751267-10003 | ND |
| 2013-10-08 | 751367-10019 | ND |
| 2013-10-08 | 751277-10003 | ND |
| 2013-10-08 | 751283-10003 | ND |
| 2014-01-08 | 765722-10539 | ND |
| 2014-01-08 | 765736-10539 | ND |
| 2014-01-08 | 765714-10539 | ND |
| 2014-01-08 | 765716-10539 | ND |