Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Heptachlor

City of Kearney

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

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND140ND
2013N/A00N/A
2014ND10ND
2015ND20ND
2016N/A00N/A
2017ND10ND

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
2012-01-17151788ND
2012-04-16165580ND
2012-05-07168179ND
2012-05-07168180ND
2012-05-07168181ND
2012-05-07168183ND
2012-05-07168184ND
2012-07-16184629ND
2012-08-13186892ND
2012-08-27186893ND
2012-08-27186895ND
2012-08-27186896ND
2012-08-27186894ND
2012-10-15202926ND
2014-05-12295637ND
2015-05-26357125ND
2015-08-10375223ND
2017-05-01ND