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EWG's Tap Water Database — 2019 UPDATE

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Heptachlor

Avon Water Company

Heptachlor is an insecticide used for termite control until 1988. It is linked to cancer, hormone disruption and neurotoxicity.

 

54

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND190ND
2013ND40ND
2014ND40ND
2015ND190ND
2016ND40ND
2017ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.008 ppb

The EWG Health Guideline of 0.008 ppb for heptachlor 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) 0.4 ppb

The legal limit for heptachlor, 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 heptachlor exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-13E202655-1SOCND
2012-02-13E202655-8SOCND
2012-02-13E202655-7SOCND
2012-02-13E202655-6SOCND
2012-02-13E202655-5SOCND
2012-02-13E202655-4SOCND
2012-02-13E202655-3SOCND
2012-02-13E202655-2SOCND
2012-02-14E202703-1SOCND
2012-05-18E205C36-9SOCND
2012-05-18E205C36-7SOCND
2012-05-18E205C36-6SOCND
2012-05-18E205C36-5SOCND
2012-05-18E205C36-4SOCND
2012-05-18E205C36-3SOCND
2012-05-18E205C36-2SOCND
2012-05-18E205C36-1SOCND
2012-08-27E208I94-9SOCND
2012-11-26E211J90-9SOCND
2013-02-14E302938-8SOCND
2013-05-21E305J25-8SOCND
2013-08-23E308O40-8SOCND
2013-11-15E311D00-8SOCND
2014-02-04E402153-7SOCND
2014-05-14E405C29-8SOCND
2014-08-13E408C10-8SOCND
2014-11-21E411H72-8SOCND
2015-02-18E502D21-4SOCND
2015-02-19E502D21-2SOCND
2015-02-19E502D21-3SOCND
2015-02-19E502D21-6SOCND
2015-02-19E502D21-7SOCND
2015-02-19E502D21-8SOCND
2015-02-19E502D21-9SOCND
2015-02-20E502D21-1SOCND
2015-03-20E503F75-1SOCND
2015-06-10E506B81-8SOCND
2015-06-10E506B81-7SOCND
2015-06-10E506B81-6SOCND
2015-06-10E506B81-5SOCND
2015-06-10E506B81-4SOCND
2015-06-10E506B81-3SOCND
2015-06-10E506B81-2SOCND
2015-06-10E506B81-1SOCND
2015-08-28E508Y67-8SOCND
2015-11-24E511O25-8SOCND
2016-02-18E602H93-8SOCND
2016-05-19E605N95-8SOCND
2016-08-05E608889-8SOCND
2016-11-21E611M57-8SOCND
2017-02-24E702M07-8SOCND
2017-06-01D7F0171-08SOCND
2017-08-29D7H3264-08SOCND
2017-11-28D7K2247-08SOCND