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EWG's Tap Water Database — 2021 UPDATE

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Toluene

Lca Wlsa Central Division

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND130ND
2015ND40ND
2016ND30ND
2017ND110ND
2018ND40ND
2019ND40ND

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
2014-03-0514022333-01ND
2014-03-0514022333-06ND
2014-03-0514022333-05ND
2014-03-0514022333-04ND
2014-03-0514022333-02ND
2014-03-0514022333-03ND
2014-03-1214030864-03ND
2014-03-1214030864-04ND
2014-03-1214030864-05ND
2014-03-1214030864-06ND
2014-03-1214030864-02ND
2014-03-1214030864-01ND
2014-03-2614032553-01ND
2015-02-0412435988ND
2015-02-1912436011ND
2015-02-1912436034ND
2015-03-1812550672ND
2016-06-2114455964ND
2016-08-1814786701ND
2016-08-1814786672ND
2017-07-1016459231ND
2017-07-1016459273ND
2017-07-1016459252ND
2017-07-2016613967ND
2017-07-2016613816ND
2017-07-2016613918ND
2017-07-2616613867ND
2017-07-2716614049ND
2017-08-0116613739ND
2017-08-1016614103ND
2017-08-2916773004ND
2018-03-168032172-01ND
2018-08-238074081-07ND
2018-08-238074081-02ND
2018-08-238074081-05ND
2019-07-119072953-01ND
2019-08-089076334-01ND
2019-08-229076420-02ND
2019-09-169076421-02ND