Know Your Environment. Protect Your Health.

Toluene

Guilford Water Authority

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
2020ND30ND
2021ND50ND
2022ND10ND
2023ND70ND

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
2018-05-29(104)ND
2018-09-04(104)ND
2018-12-11(104)ND
2019-03-05(104)ND
2020-11-0223491237.00ND
2020-11-0223491216.00ND
2020-11-0223491195.00ND
2021-03-0924197208.00ND
2021-03-0924197229.00ND
2021-03-2924197251.00ND
2021-03-2924197272.00ND
2021-11-0425719765.00ND
2022-04-2526601206.00ND
2023-05-1729053156.00ND
2023-05-1729053177.00ND
2023-05-2429053227.00ND
2023-05-2429053206.00ND
2023-08-0129447942.00ND
2023-08-0129447962.00ND
2023-08-0129447922.00ND