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EWG's Tap Water Database — 2021 UPDATE

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Toluene

Bellflower - Somerset MWC

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.

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND70ND
2016ND60ND
2017ND70ND
2018ND70ND
2019ND70ND

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
2014-04-149588-026-1100ND
2014-04-149588-022-1046ND
2014-07-239588-029-1100ND
2014-07-239588-027-1314ND
2014-07-239588-021-1334ND
2014-07-239588-011-1400ND
2014-07-239588-008-1240ND
2014-10-229588-009-1113ND
2015-04-159588-026-1026ND
2015-04-159588-022-0936ND
2015-07-089588-021-1100ND
2015-07-089588-027-1046ND
2015-07-089588-008-1030ND
2015-07-109588-029-1014ND
2015-10-279588-009-0936ND
2016-06-179588-026-1122ND
2016-06-179588-022-0935ND
2016-07-149588-021-1100ND
2016-07-149588-008-1025ND
2016-07-149588-029-0940ND
2016-10-109588-009-1044ND
2017-05-099588-022-1015ND
2017-05-099588-026-1120ND
2017-07-119588-029-0930ND
2017-07-119588-021-1050ND
2017-10-199588-027-1005ND
2017-10-199588-008-1020ND
2017-10-199588-009-0940ND
2018-04-169588-026-1044ND
2018-04-169588-022-1012ND
2018-07-269588-021-1035ND
2018-07-269588-029-0913ND
2018-10-299588-009-1045ND
2018-10-299588-008-1000ND
2018-11-139588-027-0950ND
2019-05-089588-022-0935ND
2019-05-089588-026-1025ND
2019-07-319588-021-1015ND
2019-07-319588-029-1025ND
2019-10-179588-009-1008ND
2019-10-179588-027-1045ND
2019-10-179588-008-1120ND