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EWG's Tap Water Database — 2021 UPDATE

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Alpha-hexachlorocyclohexane

Aqua Pa Uwchlan

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.

 

9

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
2018ND80ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-06-223971677ND
2018-09-114055254ND
2018-09-114055187ND
2018-09-114055242ND
2018-09-124061066ND
2018-09-124061069ND
2018-09-124061152ND
2018-09-144061479ND
2019-01-044168345ND