Know Your Environment. Protect Your Health.

Toluene

Frognot Water Supply Corporation

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND40ND
2021ND20ND
2022ND20ND
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-04-19Q1816227008ND
2018-06-20Q1824690001ND
2019-03-18Q1911123002ND
2019-08-12Q1954104001ND
2020-03-10Q2009278009ND
2020-03-10Q2009278011ND
2020-03-10Q2009278013ND
2020-05-12Q2018415002ND
2021-07-13Q2118248008ND
2021-07-13Q2118248010ND
2022-05-11Q2214187002ND
2022-05-11Q2214187005ND
2023-03-14Q2310003002ND
2023-03-14Q2310003004ND
2023-03-14Q2310003006ND