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EWG's Tap Water Database — 2019 UPDATE

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Toluene

Sunny Slope Water Company

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND50ND
2013ND50ND
2014ND40ND
2015ND50ND
2016ND50ND
2017ND50ND

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
2012-03-149588-004-1000ND
2012-06-199588-012-0900ND
2012-09-129588-017-0950ND
2012-09-129588-003-0930ND
2012-11-299588-006-0945ND
2013-03-199588-004-0940ND
2013-06-269588-012-0855ND
2013-09-039588-017-1007ND
2013-09-039588-003-0955ND
2013-12-179588-006-0900ND
2014-03-039588-004-0930ND
2014-06-039588-012-0940ND
2014-09-169588-003-0925ND
2014-12-019588-006-0910ND
2015-03-199588-004-0910ND
2015-06-099588-012-1025ND
2015-06-099588-017-1010ND
2015-09-029588-003-0935ND
2015-12-099588-006-0910ND
2016-03-109588-004-0915ND
2016-06-089588-012-1005ND
2016-06-089588-017-1030ND
2016-09-129588-003-0930ND
2016-12-029588-006-1040ND
2017-03-069588-004-1040ND
2017-06-309588-012-1310ND
2017-06-309588-017-1335ND
2017-09-219588-003-0930ND
2017-12-289588-006-0835ND