Know Your Environment. Protect Your Health.

MTBE

Ascot Park Apartments

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND40ND

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
2018-01-178010455-01ND
2018-04-128040438-01ND
2018-07-308071207-01ND
2018-10-178100809-01ND
2019-01-309011085-01ND
2019-04-309041248-01ND
2019-07-249071279-03ND
2019-10-169100775-01ND
2020-01-230010933-01ND
2020-04-160040640-01ND
2020-07-080070382-01ND
2020-10-080100398-01ND
2021-01-271011143-01ND
2021-04-211040990-01ND
2021-07-201070927-01ND
2021-10-141100747-01ND
2022-02-172021005-01ND
2022-04-262041189-01ND
2022-07-122070479-01ND
2022-10-122100504-01ND
2023-01-0923A0400-01ND
2023-04-0523D0283-01ND
2023-07-1923G0966-01ND
2023-10-0323J0132-01ND