Know Your Environment. Protect Your Health.

Toluene

Ridge Spring, Town of

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
20201.35 ppb31ND - 4.06 ppb
20210.143 ppb41ND - 0.570 ppb
2022ND30ND
2023ND10ND

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
2018-01-17AE06217ND
2018-05-02AE11636ND
2018-07-18AE15231ND
2018-10-17AE19864ND
2019-02-27AE26426ND
2019-04-02AE28055ND
2019-07-16AE33704ND
2019-11-25AE40764ND
2020-02-11AE44279ND
2020-04-22AE47574ND
2020-12-09AE586784.06 ppb
2021-02-24AE618540.570 ppb
2021-06-24AE67917ND
2021-07-21AE69291ND
2021-11-17AE75295ND
2022-01-12AE77416ND
2022-04-20AE82499ND
2022-11-16AE93064ND
2023-10-18AF10384ND