Toluene

Deerwood Subdivision

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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	N/A	0	0	N/A
2015	N/A	0	0	N/A
2016	N/A	0	0	N/A
2017	N/A	0	0	N/A
2018	ND	12	0	ND
2019	0.0462 ppb	13	1	ND - 0.600 ppb

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
2018-02-26	LLH67791	ND
2018-02-26	LLH67793	ND
2018-02-26	LLH67792	ND
2018-05-10	LLH79900	ND
2018-05-10	LLH79901	ND
2018-05-10	LLH79909	ND
2018-08-15	LLH99363	ND
2018-08-15	LLH99375	ND
2018-08-15	LLH99376	ND
2018-10-31	LLI13469	ND
2018-10-31	LLI13468	ND
2018-10-31	LLI13480	ND
2019-02-21	LLI26628	ND
2019-02-21	LLI26627	ND
2019-02-21	LLI26625	ND
2019-05-31	LLI40256	ND
2019-05-31	LLI40266	ND
2019-05-31	LLI40265	ND
2019-09-09	LLI62407	ND
2019-09-09	LLI62404	ND
2019-09-09	LLI62406	ND
2019-10-31	LLI74074	0.600 ppb
2019-10-31	LLI74079	ND
2019-10-31	LLI74073	ND
2019-12-17	LLI84105	ND