MTBE
Burr Oak
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.
11
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 | 6 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
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 | Lab ID | Result |
|---|---|---|
| 2018-03-08 | LLH69426 | ND |
| 2018-05-30 | LLH82924 | ND |
| 2018-08-27 | LLI01494 | ND |
| 2018-11-19 | LLI15976 | ND |
| 2018-11-19 | LLI15978 | ND |
| 2018-11-19 | LLI15977 | ND |
| 2019-03-07 | LLI28317 | ND |
| 2019-06-27 | LLI46828 | ND |
| 2019-07-24 | LLI52063 | ND |
| 2019-10-10 | LLI70511 | ND |
| 2019-12-27 | LLI86075 | ND |