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EWG's Tap Water Database — 2021 UPDATE

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Toluene

Bethany Bay Ocean View

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.

 

72

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND150ND
2015ND150ND
2016ND110ND
2017ND110ND
2018ND110ND
2019ND90ND

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
2014-02-14S479039ND
2014-03-05S479050ND
2014-03-05S479049ND
2014-04-15S479174ND
2014-06-02S479215ND
2014-06-02S479102ND
2014-07-15L5162668-2ND
2014-07-17L5163919-3ND
2014-07-17L5163919-2ND
2014-09-04S504572ND
2014-09-04S504571ND
2014-10-02S588794ND
2014-10-21S478988ND
2014-12-01S588730ND
2014-12-01S588729ND
2015-01-22S580485ND
2015-03-02S601965ND
2015-03-02S601966ND
2015-04-22S612390ND
2015-06-01S612410ND
2015-06-01S612409ND
2015-06-03S612429ND
2015-07-28S612436ND
2015-07-28S612435ND
2015-08-31S614726ND
2015-09-08S614732ND
2015-09-08S614731ND
2015-10-26S624988ND
2015-12-07S614741ND
2015-12-07S614740ND
2016-03-07S659185ND
2016-03-07S659184ND
2016-04-04S659050ND
2016-05-24S479012ND
2016-06-21S670331ND
2016-06-21S670330ND
2016-08-25S670452ND
2016-09-06S670462ND
2016-09-06S670459ND
2016-12-06S679343ND
2016-12-06S679342ND
2017-01-23S679405ND
2017-03-08S730766ND
2017-03-08S730765ND
2017-06-07S730820ND
2017-06-07S730819ND
2017-07-28S730864ND
2017-07-28S730861ND
2017-09-05S737178ND
2017-09-05S737174ND
2017-12-05S769459ND
2017-12-05S769453ND
2018-01-29S770630ND
2018-03-07S770663ND
2018-03-07S770659ND
2018-06-04S811947ND
2018-06-04S811943ND
2018-08-02S811999ND
2018-08-02S811997ND
2018-09-04S812269ND
2018-09-04S812221ND
2018-12-05S816989ND
2018-12-05S816993ND
2019-03-04S847866ND
2019-03-04S816982ND
2019-05-28S848054ND
2019-06-03S865016ND
2019-06-03S865008ND
2019-09-04S895821ND
2019-09-04S895817ND
2019-12-03S919996ND
2019-12-03S920000ND