Know Your Environment. Protect Your Health.

MTBE

Candlewood Park Water 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

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND50ND
2021ND30ND
2022ND30ND
2023ND50ND

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
2020-01-27AW01792-POCSND
2020-08-27AW16649-POCSND
2020-08-27AW16651-POCSND
2020-09-22420-181340-2-POCSND
2020-09-22420-181340-1-POCSND
2021-04-21AX07611-POCSND
2021-04-21AX07609-POCSND
2021-10-06AX20377-POCSND
2022-06-16AY10393-POCSND
2022-06-16AY10389-POCSND
2022-12-08AY21972-POCSND
2023-05-02CN95930-POCSND
2023-05-02CN95932-POCSND
2023-06-07AZ10246-POCSND
2023-06-07AZ10248-POCSND
2023-12-18AZ22799-POCND