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EWG's Tap Water Database — 2021 UPDATE

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Alpha-hexachlorocyclohexane

San Joaquin, City Of

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.

 

6

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
2018ND60ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-21100441PND
2018-04-04102944RND
2018-04-04102945RND
2018-08-15107044PND
2018-08-15107045PND
2018-08-15107046PND