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EWG's Tap Water Database — 2021 UPDATE

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MTBE

New Windsor Consolidated WD

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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND50ND
2017ND30ND
2018ND60ND
2019ND100ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-03-3103311402(POCS)ND
2014-03-3103311401(POCS)ND
2014-04-0804081404(POCS)ND
2014-05-1405141420(POCS)ND
2015-04-2304231508(POCS)ND
2015-04-2304231510(POCS)ND
2015-04-2304231509(POCS)ND
2015-07-2907291513(POCS)ND
2016-01-2001201606(POCS)ND
2016-01-2001201607(POCS)ND
2016-01-2701271608(POCS)ND
2016-03-0203021622-1(POCS)ND
2016-04-2104211602-2(POCS)ND
2017-08-0208021720A-2(POCSND
2017-08-0208021720C-2(POCSND
2017-08-0208021720B-2(POCSND
2018-04-2504251811POCSND
2018-04-2504251810(NITRA-PND
2018-04-2504251809NITRA-POND
2018-12-0312031807E-POCND
2018-12-1012101809B-POCND
2018-12-1012101809F-POCND
2019-01-0801081916B-POCSND
2019-01-0801081916C-POCND
2019-01-0801091908B-POCSND
2019-04-1704171904B-POCND
2019-04-1704171904A-POCND
2019-04-1704171904C-POCND
2019-11-1211121905POCND
2019-12-0312031902POCND
2019-12-0312031903POCND
2019-12-0912091905POCND