Know Your Environment. Protect Your Health.

MTBE

Crawfordville Water System

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.60 ppb111.60 ppb
20190.600 ppb31ND - 1.80 ppb
2020ND10ND
20212.20 ppb112.20 ppb
20220.567 ppb31ND - 1.70 ppb
2023ND10ND

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
2018-05-24AJ901711.60 ppb
2019-05-16AK177251.80 ppb
2019-05-16AK17726ND
2019-05-16AK17727ND
2020-06-04AK47378ND
2021-03-25AK718292.20 ppb
2022-04-07AK985701.70 ppb
2022-12-20AL22779ND
2022-12-28AL23053ND
2023-01-30AL24270ND