Know Your Environment. Protect Your Health.

Toluene

Upper Hanover 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.

 

50

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND50ND
2020ND90ND
2021ND100ND
2022ND130ND
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
2018-01-308001978-01ND
2018-04-258008140-01ND
2018-07-178017906-01ND
2018-07-258019752-01ND
2018-07-258019752-02ND
2018-10-108028641-01ND
2019-01-238038660-01ND
2019-05-079009685-01ND
2019-08-218038658-01ND
2019-09-249034252-01ND
2019-12-119033962-01ND
2020-03-1821847907.00ND
2020-03-2021847950.00ND
2020-03-2021847949.00ND
2020-04-2822024191.00ND
2020-04-2822024190.00ND
2020-06-2422417325.00ND
2020-07-0122417326.00ND
2020-10-0623183422.00ND
2020-11-2023362979.00ND
2021-03-1624061118.00ND
2021-03-1924061119.00ND
2021-04-2124248456.00ND
2021-04-3024248608.00ND
2021-07-0624829868.00ND
2021-07-0924830021.00ND
2021-10-0525405601.00ND
2021-10-2925405758.00ND
2021-12-2925765036.00ND
2021-12-2925765015.00ND
2022-02-0125943649.00ND
2022-02-0125943648.00ND
2022-02-0125943650.00ND
2022-02-2326118568.00ND
2022-02-2326118569.00ND
2022-05-0526649387.00ND
2022-05-0626649388.00ND
2022-06-0226649564.00ND
2022-06-0326649565.00ND
2022-07-0727038005.00ND
2022-07-0827038006.00ND
2022-12-0127999434.00ND
2022-12-0227999435.00ND
2023-01-0428173540.00ND
2023-04-1028703196.00ND
2023-04-1128703195.00ND
2023-04-1128703194.00ND
2023-07-0329302601.00ND
2023-10-0329700875.00ND
2023-11-2830246512.00ND