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EWG's Tap Water Database — 2019 UPDATE

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Chlordane

Ashebrook Park

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND30ND
20140.733 ppb97ND - 1.39 ppb
20150.230 ppb41ND - 0.920 ppb
20160.236 ppb41ND - 0.942 ppb
20170.275 ppb21ND - 0.550 ppb

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
2012-05-29C202008-01ND
2012-05-29C202008-02ND
2012-09-03C207476-01ND
2012-11-07C210067-01ND
2013-02-04C213930-01ND
2013-02-04C213930-02ND
2013-05-20C302376-01ND
2014-01-14C400144-01RE11.12 ppb
2014-01-14C400144-01ND
2014-01-22C316522-01ND
2014-04-08C402857-02RE10.604 ppb
2014-04-08C402857-01RE10.636 ppb
2014-07-23C406507-01RE10.894 ppb
2014-07-24C406507-02RE10.600 ppb
2014-10-16C411356-02RE11.39 ppb
2014-10-16C411356-01RE11.35 ppb
2015-01-21ND
2015-01-22ND
2015-07-210.920 ppb
2015-10-14ND
2016-01-19C516505-01ND
2016-01-25CZ01132-01ND
2016-04-19CZ02766-01RE1ND
2016-10-10CZ12924-01RE10.942 ppb
2017-04-11CA02612-01RE10.550 ppb
2017-11-01CA13383-01ND