Know Your Environment. Protect Your Health.

Toluene

Hillcrest Water District

NOTE: Hillcrest Water District purchases water from Leicester Water Supply District which is required to test for toluene. Sample information shown below was taken by Leicester Water Supply District.

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
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND10ND
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

NOTE: Hillcrest Water District purchases water from Leicester Water Supply District which is required to test for toluene. Sample information shown below was taken by Leicester Water Supply District.

Date Result
2019-05-28ND
2019-05-28ND
2019-05-28ND
2019-05-28ND
2020-06-24ND
2020-06-24ND
2020-06-24ND
2020-06-24ND
2021-06-16ND
2021-06-16ND
2021-06-16ND
2021-06-16ND
2022-05-12ND
2022-05-12ND
2022-05-12ND
2022-05-12ND
2023-05-10ND
2023-05-10ND
2023-05-10ND
2023-05-10ND