MTBE
Jaffrey Water 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.
15
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 | 7 | 0 | ND |
| 2019 | ND | 8 | 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 |
|---|---|---|
| 2018-03-12 | 18030094-001 | ND |
| 2018-05-14 | 18050168-001 | ND |
| 2018-05-14 | 18050171-001 | ND |
| 2018-05-14 | 18050172-001 | ND |
| 2018-05-14 | 18050173-001 | ND |
| 2018-08-07 | 18080132-001 | ND |
| 2018-11-05 | 18110054-001 | ND |
| 2019-02-13 | 19020147-001 | ND |
| 2019-02-21 | 19020235-001 | ND |
| 2019-05-06 | 19050072-001 | ND |
| 2019-05-06 | 19050073-001 | ND |
| 2019-05-06 | 19050074-001 | ND |
| 2019-05-06 | 19050075-001 | ND |
| 2019-07-08 | 19070087-001 | ND |
| 2019-10-07 | 19100119-002 | ND |