Know Your Environment. Protect Your Health.

MTBE

Mills Mobile Home Park 1&2

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.

 

19

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
20191.72 ppb331.51 ppb - 1.91 ppb
20201.89 ppb331.64 ppb - 2.08 ppb
20212.16 ppb442.06 ppb - 2.29 ppb
20221.87 ppb441.42 ppb - 2.20 ppb
20232.20 ppb551.82 ppb - 2.77 ppb

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
2019-01-10AE238711.91 ppb
2019-09-18AE374051.51 ppb
2019-12-03AE409761.73 ppb
2020-05-26AE489641.64 ppb
2020-08-19AE530921.95 ppb
2020-11-04AE568472.08 ppb
2021-02-23AE616802.06 ppb
2021-05-25AE663922.29 ppb
2021-08-31AE711902.07 ppb
2021-11-03AE744282.22 ppb
2022-03-10AE805592.12 ppb
2022-05-26AE843502.20 ppb
2022-08-03AE875861.73 ppb
2022-10-27AE921921.42 ppb
2023-03-06AE980352.77 ppb
2023-05-25AF026672.38 ppb
2023-08-07AF066541.99 ppb
2023-09-26AF090442.05 ppb
2023-10-24AF105431.82 ppb