Know Your Environment. Protect Your Health.

Toluene

Ferron - Castle Valley Special Service 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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.1000 ppb51ND - 0.500 ppb
20190.400 ppb51ND - 2.00 ppb
20200.640 ppb52ND - 2.50 ppb
20210.780 ppb54ND - 1.80 ppb
20220.460 ppb54ND - 0.700 ppb
20230.230 ppb51ND - 1.15 ppb

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 Result
2018-02-20ND
2018-05-22ND
2018-08-22ND
2018-11-140.500 ppb
2018-12-12ND
2019-02-202.00 ppb
2019-05-21ND
2019-08-20ND
2019-08-20ND
2019-11-19ND
2020-02-190.700 ppb
2020-05-19ND
2020-08-18ND
2020-08-18ND
2020-11-172.50 ppb
2021-02-170.600 ppb
2021-05-261.80 ppb
2021-09-071.000 ppb
2021-09-15ND
2021-12-090.500 ppb
2022-02-220.600 ppb
2022-06-210.700 ppb
2022-08-240.500 ppb
2022-08-24ND
2022-11-290.500 ppb
2023-02-22ND
2023-06-21ND
2023-09-06ND
2023-09-061.15 ppb
2023-11-14ND