Xylenes (total)

Deerwood Subdivision

Xylenes are solvents used in industrial and consumer products, such as cleaning agents and paint thinners. Xylenes cause nervous system damage and may harm developing fetuses.

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	0.0385 ppb	13	1	ND - 0.500 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1,800 ppb

The EWG Health Guideline of 1,800 ppb for xylenes 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 the brain and nervous system.

EPA Maximum Contaminant
Level (MCL) 10,000 ppb

The legal limit for xylenes, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s. This limit may not fully protect against harm to the brain and nervous system due to xylene exposure.

ppb = parts per billion

All test results

Date	Lab ID	Result
2018-02-26	LLH67793	ND
2018-02-26	LLH67792	ND
2018-02-26	LLH67791	ND
2018-05-10	LLH79900	ND
2018-05-10	LLH79901	ND
2018-05-10	LLH79909	ND
2018-08-15	LLH99376	ND
2018-08-15	LLH99363	ND
2018-08-15	LLH99375	ND
2018-10-31	LLI13468	ND
2018-10-31	LLI13469	ND
2018-10-31	LLI13480	ND
2019-02-21	LLI26628	ND
2019-02-21	LLI26625	ND
2019-02-21	LLI26627	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	0.500 ppb
2019-10-31	LLI74079	ND
2019-10-31	LLI74073	ND
2019-12-17	LLI84105	ND