Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Alpha-hexachlorocyclohexane

Dublin

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
2018N/A00N/A
2019ND60ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-02-1335448317002SEA1ND
2019-02-2535450366001SEA1ND
2019-05-1535468917001SEA2ND
2019-08-1435490447001SEA3ND
2019-08-1435490447002SEA2ND
2019-11-0635510298001SEA4ND