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EWG's Tap Water Database — 2021 UPDATE

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Alpha-hexachlorocyclohexane

Manchester 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.

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16

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
2019ND70ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-10-2170109240001SEA1ND
2019-10-2170109240002SEA1ND
2019-10-2170109240003SEA1ND
2019-10-2270109459001SEA1ND
2019-10-2270109459002SEA1ND
2019-10-2270109459003SEA1ND
2019-10-2270109459004SEA1ND
2020-01-1570118634010SEA2ND
2020-04-2070128663001SEA3ND
2020-04-2070128663002SEA2ND
2020-04-2070128663003SEA2ND
2020-04-2170128950001SEA2ND
2020-04-2270128950003SEA2ND
2020-04-2270128950004SEA2ND
2020-05-1970131647001SEA2ND
2020-07-1570138570010SEA4ND