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EWG's Tap Water Database — 2019 UPDATE

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Toluene

City of San Diego

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.

 

62

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND90ND
2013ND120ND
2014ND90ND
2015ND110ND
2016ND120ND
2017ND90ND

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
2012-02-019437-001-0000ND
2012-02-019437-006-0000ND
2012-02-019437-010-0000ND
2012-05-029437-001-0000ND
2012-05-029437-006-0000ND
2012-05-029437-010-0000ND
2012-08-019437-001-0000ND
2012-08-019437-006-0000ND
2012-08-019437-010-0000ND
2013-02-069437-010-0000ND
2013-02-069437-006-0000ND
2013-02-069437-001-0000ND
2013-05-019437-010-0000ND
2013-05-019437-001-0000ND
2013-05-019437-006-0000ND
2013-08-079437-006-0000ND
2013-08-079437-001-0000ND
2013-08-079437-010-0000ND
2013-11-069437-006-0000ND
2013-11-069437-001-0000ND
2013-11-069437-010-0000ND
2014-02-059437-006-0000ND
2014-02-059437-001-0000ND
2014-02-059437-010-0000ND
2014-05-079437-006-0000ND
2014-05-079437-001-0000ND
2014-05-079437-010-0000ND
2014-11-059437-006-0000ND
2014-11-059437-001-0000ND
2014-11-059437-010-0000ND
2015-02-049437-010-0000ND
2015-02-049437-001-0000ND
2015-05-069437-001-0000ND
2015-05-069437-010-0000ND
2015-05-069437-006-0000ND
2015-08-059437-001-0000ND
2015-08-059437-010-0000ND
2015-08-059437-006-0000ND
2015-11-189437-001-0000ND
2015-11-189437-010-0000ND
2015-11-189437-006-0000ND
2016-02-089437-001-0000ND
2016-02-089437-010-0000ND
2016-02-089437-006-0000ND
2016-05-049437-001-0000ND
2016-05-049437-010-0000ND
2016-05-049437-006-0000ND
2016-08-049437-006-0000ND
2016-08-049437-001-0000ND
2016-08-049437-010-0000ND
2016-11-029437-006-0000ND
2016-11-029437-001-0000ND
2016-11-029437-010-0000ND
2017-02-019437-006-0000ND
2017-02-019437-001-0000ND
2017-02-019437-010-0000ND
2017-05-039437-006-0000ND
2017-05-039437-001-0000ND
2017-05-039437-010-0000ND
2017-11-019437-010-0000ND
2017-11-019437-001-0000ND
2017-11-019437-006-0000ND