MTBE
Kennebunk, Kennebunkport & Wells WD
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.
14
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 | 2 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 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 |
|---|---|---|
| 2018-06-20 | 218060806.02 | ND |
| 2018-06-20 | 218/060806.01 | ND |
| 2019-01-24 | 219010660.01 | ND |
| 2019-07-10 | 219070288.01 | ND |
| 2019-07-10 | 219070288.02 | ND |
| 2019-07-10 | 219070288.03 | ND |
| 2020-05-05 | 220050116.01 | ND |
| 2020-07-15 | 220070572.01 | ND |
| 2021-04-06 | 221040205.02 | ND |
| 2021-04-06 | 221040205.01 | ND |
| 2021-06-29 | 221061056.01 | ND |
| 2021-10-04 | 221100065.01 | ND |
| 2022-02-17 | 222020461.01 | ND |
| 2022-08-03 | 222080125.01 | ND |