1,3-Butadiene
McKinleyville CSD
NOTE: McKinleyville CSD purchases water from Humboldt Bay MWD which is required to test for 1,3-butadiene. Sample information shown below was taken by Humboldt Bay MWD.
2
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 | ND | 2 | 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
NOTE: McKinleyville CSD purchases water from Humboldt Bay MWD which is required to test for 1,3-butadiene. Sample information shown below was taken by Humboldt Bay MWD.
| Date | Lab ID | Result |
|---|---|---|
| 2013-03-25 | 3C26025-01A | ND |
| 2013-09-25 | 3I26010-01A | ND |