MTBE
Dove Run
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.
1
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 | 0.585 ppb | 32 | 8 | ND - 3.80 ppb |
| 2019 | 0.502 ppb | 36 | 7 | ND - 4.10 ppb |
| 2020 | 0.584 ppb | 38 | 10 | ND - 4.30 ppb |
| 2021 | 0.417 ppb | 18 | 3 | ND - 4.80 ppb |
| 2022 | 0.343 ppb | 14 | 2 | ND - 3.80 ppb |
| 2023 | ND | 1 | 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 | Lab ID | Result |
|---|---|---|
| 2023-09-22 | S1308088 | ND |