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EWG's Tap Water Database — 2021 UPDATE

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Alpha-hexachlorocyclohexane

Westford 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.

 

5

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
2018ND50ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Result
2018-07-17ND
2018-07-17ND
2018-09-20ND
2018-10-10ND
2018-10-10ND