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EWG's Tap Water Database — 2021 UPDATE

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Toluene

Wausau Waterworks

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.

 

34

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND80ND
2016ND80ND
2017ND60ND
2018ND20ND
2019ND20ND

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
2014-03-13774544ND
2014-03-13774545ND
2014-05-16789472ND
2014-05-16789473ND
2014-09-11817483ND
2014-09-11817478ND
2014-10-10824992ND
2014-10-10824991ND
2015-02-16843974ND
2015-02-19844440ND
2015-06-04863527ND
2015-06-04863528ND
2015-08-27879231ND
2015-08-27879234ND
2015-10-29891606ND
2015-10-29891607ND
2016-02-18905910ND
2016-02-18905909ND
2016-05-12920726ND
2016-05-12920725ND
2016-08-18940086ND
2016-08-18940089ND
2016-11-17959642ND
2016-11-17959643ND
2017-02-16973998ND
2017-02-16973999ND
2017-05-18991083ND
2017-05-18991084ND
2017-09-051015845ND
2017-09-061015848ND
2018-09-111079573ND
2018-09-121079578ND
2019-09-261151343ND
2019-09-261151345ND