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EWG's Tap Water Database — 2021 UPDATE

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Heptachlor epoxide

Kingman Municipal Water

Heptachlor epoxide is a breakdown product of heptachlor, a highly toxic and carcinogenic pesticide banned in the U.S. since the 1980s.

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND120ND
2016ND20ND
2017N/A00N/A
2018ND150ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.006 ppb

The EWG Health Guideline of 0.006 ppb for heptachlor epoxide 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 heptachlor epoxide, 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.

ppb = parts per billion

All test results

Date Lab ID Result
2015-02-09550-39973-1ND
2015-02-09550-39972-1ND
2015-02-09550-39970-1ND
2015-02-17550-40405-1ND
2015-02-17550-40404-1ND
2015-02-17550-40403-1ND
2015-08-17550-49709-1ND
2015-08-17550-49708-1ND
2015-08-17550-49707-1ND
2015-08-17550-49706-1ND
2015-08-17550-49705-1ND
2015-08-17550-49703-1ND
2016-02-16550-59042-1ND
2016-07-12550-66385-1SND
2018-02-26550-98566-1 SOCND
2018-02-26550-98567-1 SOCND
2018-03-13550-99583-1 SOCND
2018-03-26680-150420-1ND
2018-03-26680-150418-1 SOCND
2018-03-27680-150511-2ND
2018-03-27680-150511-1ND
2018-07-173996200ND
2018-07-173996199ND
2018-07-244001793ND
2018-07-244001791ND
2018-07-244001789ND
2018-07-314009756ND
2018-07-314009752ND
2018-10-084085015ND
2019-02-194206604ND
2019-07-094351373ND