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EWG's Tap Water Database — 2021 UPDATE

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Alpha-hexachlorocyclohexane

Rochester City

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
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND20ND
2019ND60ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-10-164091599ND
2018-10-174093258ND
2019-01-154174163ND
2019-01-154174159ND
2019-04-084253212ND
2019-04-094254808ND
2019-07-094348065ND
2019-07-094347755ND