Know Your Environment. Protect Your Health.

Toluene

Castle Mountain Creeks Owners Association

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND10ND
2020ND40ND
2021ND40ND
2022ND40ND
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
2019-01-07V1900713ND
2020-02-11V2006067ND
2020-05-13V2021731ND
2020-08-24V2041261ND
2020-12-08V2061672ND
2021-01-08V2101074ND
2021-04-15V2117132ND
2021-07-15V2135856ND
2021-10-26V2157582ND
2022-03-07V2210666ND
2022-04-06V2216003ND
2022-09-15V2246108ND
2022-12-22V2262581ND
2023-10-19V2322779-01ND