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EWG's Tap Water Database — 2021 UPDATE

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Alpha-hexachlorocyclohexane

Cedar Rapids Water Department

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
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-10-083062697001ND
2019-10-083062697002ND
2020-01-233082610001ND
2020-01-233082610002ND
2020-04-143097125001ND
2020-04-143097125002ND
2020-07-133114138001ND
2020-07-133114138002ND