Toluene

Indian Wells Valley WD

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.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	N/A	0	N/A
2015	N/A	0	N/A
2016	ND	10	ND
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	ND	10	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2016-08-02	3761-014-0932	ND
2016-08-02	3761-050-0750	ND
2016-08-02	3761-020-0832	ND
2016-08-02	3761-033-0808	ND
2016-08-09	3761-015-0915	ND
2016-08-09	3761-031-0753	ND
2016-08-09	3761-034-0838	ND
2016-08-16	3761-017-0805	ND
2016-08-16	3761-036-0914	ND
2016-08-16	3761-035-0816	ND
2019-08-06	3761-014-0804	ND
2019-08-06	3761-035-0806	ND
2019-08-06	3761-034-0905	ND
2019-08-06	3761-031-0824	ND
2019-08-13	3761-020-0857	ND
2019-08-13	3761-017-0850	ND
2019-08-13	3761-036-0910	ND
2019-08-20	3761-050-0745	ND
2019-08-27	3761-033-0815	ND
2019-08-27	3761-015-0925	ND