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EWG's Tap Water Database — 2019 UPDATE

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MTBE

Bayshore Mobile Home Park

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20123.72 ppb442.55 ppb - 4.64 ppb
20131.99 ppb111.99 ppb
20142.43 ppb112.43 ppb
2015ND10ND
20160.520 ppb110.520 ppb
20170.400 ppb110.400 ppb

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
2012-02-14L4000438-14.64 ppb
2012-04-12L4092703-14.58 ppb
2012-07-19L4202044-12.55 ppb
2012-10-11L4322429-13.09 ppb
2013-01-21L4429145-11.99 ppb
2014-01-08L4868549-12.43 ppb
2015-04-13L5535244-1ND
2016-01-13L5965711-10.520 ppb
2017-01-12L6596388-10.400 ppb