Lindane

City of Napa

Lindane is a neurotoxic and carcinogenic insecticide phased out of agricultural use in the U.S. since 2002. It is prescribed to treat lice or scabies, although safer alternatives are available.

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	ND	5	ND
2015	ND	6	ND
2016	ND	2	ND
2017	ND	3	ND
2018	ND	4	ND
2019	ND	2	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.032 ppb

The EWG Health Guideline of 0.032 ppb for lindane 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 cancer.

EPA Maximum Contaminant
Level (MCL) 0.2 ppb

The legal limit for lindane, 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
2014-07-09	9590-007-0925	ND
2014-07-09	9590-006-1245	ND
2014-07-09	1233-006-1245	ND
2014-07-09	9590-005-1145	ND
2014-07-09	1233-005-1145	ND
2015-07-21	1233-007-0940	ND
2015-07-21	9590-007-0940	ND
2015-07-21	1233-005-1120	ND
2015-07-21	9590-006-1415	ND
2015-07-21	1233-006-1415	ND
2015-07-21	9590-005-1120	ND
2016-07-27	9590-006-1545	ND
2016-07-27	9590-006-1245	ND
2017-07-20	9590-006-1330	ND
2017-07-20	9590-007-1050	ND
2017-09-13	9590-005-0840	ND
2018-07-11	1233-006-1015	ND
2018-07-11	9590-006-1015	ND
2018-07-11	1233-007-1200	ND
2018-07-11	9590-007-1200	ND
2019-07-10	1233-006-1200	ND
2019-07-10	1233-007-0830	ND