MTBE
Cutler Public Utility District
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.
16
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 | 9 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 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 |
|---|---|---|
| 2018-01-16 | CA5410001_003_003-201801161045 | ND |
| 2018-02-06 | CA5410001_003_003-201802061105 | ND |
| 2018-04-03 | CA5410001_003_003-201804031100 | ND |
| 2018-05-08 | CA5410001_003_003-201805081045 | ND |
| 2018-07-10 | CA5410001_003_003-201807101054 | ND |
| 2018-08-07 | CA5410001_003_003-201808071110 | ND |
| 2018-08-07 | CA5410001_008_008-201808071120 | ND |
| 2018-10-02 | CA5410001_003_003-201810021105 | ND |
| 2018-11-06 | CA5410001_003_003-201811061140 | ND |
| 2019-01-08 | CA5410001_003_003-201901081110 | ND |
| 2019-02-20 | CA5410001_003_003-201902201204 | ND |
| 2019-05-08 | CA5410001_003_003-201905081119 | ND |
| 2019-08-22 | CA5410001_003_003-201908221114 | ND |
| 2019-11-20 | CA5410001_003_003-201911201028 | ND |
| 2021-07-23 | CA5410001_008_008-202107231200 | ND |
| 2022-07-29 | CA5410001_003_003-202207291005 | ND |