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EWG's Tap Water Database — 2021 UPDATE

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Alpha-hexachlorocyclohexane

Sweetwater Authority

Alpha-HCH is a byproduct of the production of the insecticide lindane, which is no longer used in the U.S. The International Agency for Research on Cancer has classified all forms of this chemical as possibly carcinogenic to humans.

 

8

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
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND30ND
2019ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-10-03201810030596ND
2018-10-03201810030597ND
2018-10-03201810030598ND
2019-01-10201901100345ND
2019-04-03201904030383ND
2019-04-03201904030385ND
2019-04-03201904030384ND
2019-07-02201907020455ND