MTBE
Ferron - Castle Valley Special Service District
MTBE was used as gasoline oxygenation additive to boost the octane number. In 2005, MTBE was replaced by ethanol as a gasoline additive. MTBE causes cancers in rats.
30
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 |
|---|---|---|---|---|
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 5 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 13 ppb
The EWG Health Guideline of 13 ppb for MTBE was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Result |
|---|---|
| 2018-02-20 | ND |
| 2018-05-22 | ND |
| 2018-08-22 | ND |
| 2018-11-14 | ND |
| 2018-12-12 | ND |
| 2019-02-20 | ND |
| 2019-05-21 | ND |
| 2019-08-20 | ND |
| 2019-08-20 | ND |
| 2019-11-19 | ND |
| 2020-02-19 | ND |
| 2020-05-19 | ND |
| 2020-08-18 | ND |
| 2020-08-18 | ND |
| 2020-11-17 | ND |
| 2021-02-17 | ND |
| 2021-05-26 | ND |
| 2021-09-07 | ND |
| 2021-09-15 | ND |
| 2021-12-09 | ND |
| 2022-02-22 | ND |
| 2022-06-21 | ND |
| 2022-08-24 | ND |
| 2022-08-24 | ND |
| 2022-11-29 | ND |
| 2023-02-22 | ND |
| 2023-06-21 | ND |
| 2023-09-06 | ND |
| 2023-09-06 | ND |
| 2023-11-14 | ND |