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EWG's Tap Water Database — 2021 UPDATE

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Endrin

Hardin County Water District #1/Ft. Knox

Endrin is a banned organochlorine insecticide that is persistent and bioaccumulative. Endrin damages the nervous, immune and reproductive systems in people. It also harms fish, birds and other wildlife.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND40ND
2015ND20ND
2016ND20ND
2017ND40ND
2018ND20ND
2019ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.3 ppb

The EWG Health Guideline of 0.3 ppb for endrin 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 change to the heart and blood vessels.

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for endrin, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1960s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-102988440ND
2014-04-013000548ND
2014-10-223127165ND
2014-10-273129159ND
2015-03-033197992ND
2015-04-153225020ND
2016-03-093412095ND
2016-10-033557257ND
2017-06-283722934ND
2017-07-173734021ND
2017-10-033792352ND
2017-10-033792362ND
2018-05-153937161ND
2018-06-063954321ND
2019-05-294309723ND
2019-10-034444492ND