Chlordane

Milwaukee Waterworks

The cancer-causing pesticide chlordane was banned in 1988. Chlordane is persistent and accumulates in the body. It is still found in the environment and in the bodies of adults and newborn babies.

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	8	ND
2015	ND	6	ND
2016	N/A	0	N/A
2017	ND	4	ND
2018	N/A	0	N/A
2019	N/A	0	N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.03 ppb

The EWG Health Guideline of 0.03 ppb for chlordane 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) 2 ppb

The legal limit for chlordane, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to chlordane exposure.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-05-19	3029004,06-12	ND
2014-08-18	3085049-50,53-56	ND
2014-08-19	3086073-74,77-79	ND
2014-08-21	3088567-68,71-73	ND
2014-08-21	3088697-98,701-0	ND
2014-08-21	3088610-11,15-17	ND
2014-08-21	3088669-70,73-76	ND
2014-11-17	3140303-07,09-10	ND
2015-08-17	3302465-66,70-72	ND
2015-08-17	3302540-41,45-47	ND
2015-08-17	3302431-32,36-38	ND
2015-08-17	3302506-07,11-13	ND
2015-08-18	3303575-76,80-82	ND
2015-08-19	3304961-62,65-66	ND
2017-05-23	3699582-88	ND
2017-05-23	3699595-601	ND
2017-08-21	3762070-76,79	ND
2017-08-21	3762288-94,97	ND