Know Your Environment. Protect Your Health.

MTBE

Lancaster Water Company

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-07-18CA1900808_002_002-201807181150ND
2018-07-18CA1900808_001_001-201807181135ND
2019-07-17CA1900808_001_001-201907171120ND
2019-07-17CA1900808_002_002-201907171123ND
2020-07-15CA1900808_001_001-202007151105ND
2020-07-15CA1900808_002_002-202007151110ND
2021-07-21CA1900808_001_001-202107211210ND
2021-07-21CA1900808_002_002-202107211220ND
2022-07-20CA1900808_002_002-202207201145ND
2022-07-20CA1900808_001_001-202207201150ND
2023-07-19CA1900808_001_001-202307191235ND
2023-07-19CA1900808_002_002-202307191238ND