Xylenes (total)

City of Hanford

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	Range of results
2013	N/A	0	N/A
2014	N/A	0	N/A
2015	N/A	0	N/A
2016	ND	13	ND
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	ND	11	ND

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
2016-03-08	5810-043-1330	ND
2016-03-08	5810-033-0945	ND
2016-03-08	5810-042-1300	ND
2016-03-08	5810-036-1040	ND
2016-03-08	5810-037-1100	ND
2016-03-08	5810-038-1000	ND
2016-03-08	5810-039-0905	ND
2016-03-09	5810-028-1300	ND
2016-03-09	5810-031-1025	ND
2016-03-09	5810-041-0935	ND
2016-03-09	5810-040-1125	ND
2016-03-10	5810-026-1300	ND
2016-03-29	5810-034-0740	ND
2019-03-13	5810-043-0830	ND
2019-03-13	5810-042-1125	ND
2019-03-13	5810-033-1040	ND
2019-03-13	5810-031-1210	ND
2019-03-14	5810-037-1110	ND
2019-03-14	5810-040-0840	ND
2019-03-14	5810-036-1140	ND
2019-03-14	5810-041-0915	ND
2019-03-14	5810-034-1040	ND
2019-03-14	5810-028-1005	ND
2019-05-09	5810-039-1100	ND