MTBE
Lewes Board Of Public Works
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.
10
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 | 3 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 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 |
|---|---|---|
| 2018-09-06 | S808620 | ND |
| 2018-09-06 | S808624 | ND |
| 2018-12-21 | S855236 | ND |
| 2019-07-09 | S895565 | ND |
| 2020-06-16 | S952666 | ND |
| 2021-07-29 | S1106643 | ND |
| 2021-10-26 | S1117601 | ND |
| 2022-07-28 | S1217121 | ND |
| 2022-08-11 | S1159260 | ND |
| 2023-12-22 | S1323301 | ND |