Know Your Environment. Protect Your Health.

MTBE

Hopedale Water Department

NOTE: Hopedale Water Department purchases water from Milford Water Company which is required to test for mtbe. Sample information shown below was taken by Milford 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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND40ND
2020ND50ND
2021ND50ND
2022ND40ND
2023ND40ND

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

NOTE: Hopedale Water Department purchases water from Milford Water Company which is required to test for mtbe. Sample information shown below was taken by Milford Water Company.

Date Result
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-06-06ND
2018-06-28ND
2019-05-14ND
2019-05-14ND
2019-07-25ND
2019-10-09ND
2020-04-27ND
2020-04-28ND
2020-04-28ND
2020-04-28ND
2021-05-11ND
2021-05-11ND
2021-05-11ND
2021-05-11ND
2022-04-27ND
2022-04-27ND
2022-04-27ND
2022-06-16ND
2023-06-06ND
2023-06-06ND
2023-06-06ND
2023-06-06ND