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EWG's Tap Water Database — 2021 UPDATE

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Alpha-hexachlorocyclohexane

City of Merced

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

 

40

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
2018ND390ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-05-14A8D2533-09ND
2018-05-14A8D2533-17ND
2018-05-14A8D2533-16ND
2018-05-14A8D2533-15ND
2018-05-14A8D2533-18ND
2018-05-14A8D2533-14ND
2018-05-14A8D2533-10ND
2018-05-14A8D2533-07ND
2018-05-14A8D2533-01ND
2018-05-14A8D2533-03ND
2018-05-15A8D2533-20ND
2018-05-15A8D2533-02ND
2018-05-15A8D2533-19ND
2018-05-15A8D2533-08ND
2018-05-15A8D2533-06ND
2018-05-23A8D2533-05ND
2018-06-21A8D2533-04ND
2018-06-21A8D2533-13ND
2018-06-21A8D2533-12ND
2018-11-05A8J2526-08ND
2018-11-05A8J2526-05ND
2018-11-05A8J2532-05ND
2018-11-05A8J2532-04ND
2018-11-05A8J2526-04ND
2018-11-05A8J2526-07ND
2018-11-05A8J2540-04ND
2018-11-06A8J2532-03ND
2018-11-06A8J2532-01ND
2018-11-06A8J2526-06ND
2018-11-06A8J2540-07ND
2018-11-06A8J2540-05ND
2018-11-07A8K1018-01ND
2018-11-07A8K1023-01ND
2018-11-07A8K1023-02ND
2018-11-07A8K1023-03ND
2018-11-07A8K1017-01ND
2018-11-07A8K1017-02ND
2018-11-07A8K1023-04ND
2018-11-07A8K1017-03ND
2019-05-14A9E1784-01ND