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EWG's Tap Water Database — 2021 UPDATE

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Toluene

Glendora Water Department

Toluene is a volatile solvent that harms the nervous and immune systems, damages the liver and may increase the risk of miscarriage and birth defects. Read More.

Toluene is a petroleum-derived chemical found in gasoline and used as a solvent in paints, adhesives and cleaning supplies. Toluene is highly neurotoxic. Exposure can cause fatigue and nausea, and may lead to nervous system disorders.

MORE ABOUT THIS CONTAMINANT

 

47

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND80ND
2016ND80ND
2017ND80ND
2018ND80ND
2019ND80ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 150 ppb

The EWG Health Guideline of 150 ppb for toluene 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 1,000 ppb

The legal limit for toluene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-049588-020-1005ND
2014-03-049588-008-1020ND
2014-03-049588-006-0915ND
2014-09-099588-015-1010ND
2014-09-099588-009-0925ND
2014-09-099588-007-1030ND
2014-09-179588-010-0950ND
2015-03-259588-002-0910ND
2015-03-259588-008-0930ND
2015-03-259588-020-0900ND
2015-03-259588-006-0955ND
2015-09-099588-007-0940ND
2015-09-099588-015-1025ND
2015-09-099588-010-1010ND
2015-09-099588-009-0925ND
2016-03-039588-020-0920ND
2016-03-039588-002-0930ND
2016-03-039588-006-1000ND
2016-03-039588-008-0940ND
2016-09-089588-009-1015ND
2016-09-089588-007-0930ND
2016-09-089588-010-0940ND
2016-09-089588-015-0955ND
2017-03-029588-002-0800ND
2017-03-029588-006-0835ND
2017-03-029588-020-0755ND
2017-03-029588-008-0810ND
2017-09-079588-015-0940ND
2017-09-079588-007-0920ND
2017-09-079588-010-0930ND
2017-09-079588-009-0850ND
2018-03-079588-020-0835ND
2018-03-079588-008-0850ND
2018-03-079588-002-0840ND
2018-03-079588-006-0910ND
2018-09-149588-009-0925ND
2018-09-149588-015-1050ND
2018-09-149588-010-1025ND
2018-09-149588-007-1005ND
2019-03-139588-020-0810ND
2019-03-139588-006-0845ND
2019-03-139588-008-0825ND
2019-03-139588-002-0815ND
2019-09-199588-007-0820ND
2019-09-199588-009-0910ND
2019-09-249588-010-1350ND
2019-09-249588-015-1335ND