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EWG's Tap Water Database — 2019 UPDATE

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Heptachlor

Emmaus Borough Public Water

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

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND80ND
2015N/A00N/A
2016N/A00N/A
2017ND80ND

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
2014-05-27140021797ND
2014-05-27140021795ND
2014-05-27140021798ND
2014-05-27140021796ND
2014-08-28140038949ND
2014-08-28140038946ND
2014-08-28140038948ND
2014-08-28140038947ND
2017-05-2416304224ND
2017-05-2416304223ND
2017-05-2416304222ND
2017-05-2416304225ND
2017-08-3116771711ND
2017-08-3116771712ND
2017-08-3116771713ND
2017-08-3116771710ND