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EWG's Tap Water Database — 2021 UPDATE

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Alpha-hexachlorocyclohexane

Norman

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.

MORE ABOUT THIS CONTAMINANT

 

48

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
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND210ND
2019ND270ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-11-05AK06115-06CND
2018-11-05AK06115-01BND
2018-11-05AK06115-05CND
2018-11-05AK06115-08BND
2018-11-05AK06115-04CND
2018-11-06AK06115-07BND
2018-11-06AK06115-02BND
2018-11-06AK06115-03BND
2018-11-06AK06115-09BND
2018-11-07AK07222-03BND
2018-11-07AK07222-06CND
2018-11-07AK07222-05BND
2018-11-07AK07222-04BND
2018-11-07AK07222-01CND
2018-11-07AK07222-10CND
2018-11-08AK08068-03CND
2018-11-08AK08068-06DND
2018-11-08AK08068-04DND
2018-11-08AK08068-02BND
2018-11-08AK08068-05CND
2018-11-08AK08068-01BND
2019-02-06BB07049-04END
2019-02-06BB07049-02END
2019-02-06BB07049-03DND
2019-05-07BE07145-02DND
2019-05-07BE07145-04CND
2019-05-07BE07145-05CND
2019-05-07BE07145-13CND
2019-05-07BE07145-06CND
2019-05-07BE07145-03CND
2019-05-07BE07145-07CND
2019-05-07BE07145-12CND
2019-05-07BE07145-11CND
2019-05-07BE07145-10CND
2019-05-07BE07145-09CND
2019-05-07BE07145-01CND
2019-05-07BE07145-08CND
2019-05-07BE07145-14CND
2019-05-08BE08058-05BND
2019-05-08BE08058-02BND
2019-05-08BE08058-06BND
2019-05-08BE08058-08BND
2019-05-08BE08058-07BND
2019-05-09BE09057-01BND
2019-05-09BE09057-02BND
2019-08-07BH08061-02BND
2019-08-07BH08061-04BND
2019-08-07BH08061-03BND