MTBE
South Orange Water Department
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.
23
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 | 23 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2018-01-12 | 38301201 | ND |
| 2018-01-23 | 38301301 | ND |
| 2018-02-06 | 38660201 | ND |
| 2018-02-23 | 38660301 | ND |
| 2018-03-01 | 38898601 | ND |
| 2018-03-13 | 38898701 | ND |
| 2018-04-02 | 39159401 | ND |
| 2018-04-05 | 39159301 | ND |
| 2018-04-18 | 39159501 | ND |
| 2018-05-01 | 39447001 | ND |
| 2018-05-16 | 39447101 | ND |
| 2018-06-05 | 39902501 | ND |
| 2018-06-28 | 40483801 | ND |
| 2018-07-11 | 40391101 | ND |
| 2018-07-24 | 40391201 | ND |
| 2018-08-08 | 40391301 | ND |
| 2018-08-22 | 40835401 | ND |
| 2018-09-18 | 41046001 | ND |
| 2018-09-26 | 41046101 | ND |
| 2018-10-03 | 41455101 | ND |
| 2018-10-18 | 41454901 | ND |
| 2018-11-07 | 41843001 | ND |
| 2018-11-20 | 41843101 | ND |