MTBE
Middletown 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
---|---|---|
2014-06-09 | VOC1 200397422 | ND |
2014-06-09 | VOC1 200397423 | ND |
2015-05-28 | VOC1 200417513 | ND |
2015-06-01 | VOC1 200417623 | ND |
2016-06-22 | VOC1 200442999 | ND |
2016-06-29 | VOC1 200443424 | ND |
2017-06-29 | VOC1 200470757 | ND |
2017-09-29 | VOC1 200478287 | ND |
2018-03-28 | VOC1 200490770 | ND |
2018-04-16 | VOC1 200492154 | ND |
2019-05-13 | VOC1 200531893 | ND |
2019-05-21 | VOC1 200533083 | ND |