Know Your Environment. Protect Your Health.

MTBE

Newfield 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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.00 ppb31ND - 3.01 ppb
20193.61 ppb333.30 ppb - 3.93 ppb
20204.69 ppb114.69 ppb
20212.06 ppb21ND - 4.11 ppb
20222.94 ppb112.94 ppb
20233.67 ppb113.67 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
2018-09-12Q78226VOC3.01 ppb
2018-09-12Q78227VOCND
2018-10-23Q79497VOCND
2019-03-11R82465VOC3.93 ppb
2019-06-05R85564VOC3.30 ppb
2019-08-13R87720SOC3.60 ppb
2020-03-17S93256VOC4.69 ppb
2021-03-03T104110VOC4.11 ppb
2021-03-03T104111VOCND
2022-03-24U117244VOC2.94 ppb
2023-03-08V127146VOC3.67 ppb