MTBE
Pratt, City of
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 1 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 10 | 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 |
|---|---|---|
| 2021-04-13 | 1817297 | ND |
| 2023-08-09 | 2555381 | ND |
| 2023-08-09 | 2555382 | ND |
| 2023-08-09 | 2555383 | ND |
| 2023-08-09 | 2555384 | ND |
| 2023-08-09 | 2555385 | ND |
| 2023-08-09 | 2555386 | ND |
| 2023-08-09 | 2555387 | ND |
| 2023-08-09 | 2555388 | ND |
| 2023-09-13 | 2575317 | ND |
| 2023-10-10 | 2589869 | ND |