Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Alpha-hexachlorocyclohexane

Bayleaf Master

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

 

198

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
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2020-01-084533406ND
2020-01-084533441ND
2020-01-084533031ND
2020-01-084532586ND
2020-01-084532831ND
2020-01-084532683ND
2020-01-084533349ND
2020-01-084533869ND
2020-01-084533449ND
2020-01-084532844ND
2020-01-084533131ND
2020-01-084533335ND
2020-01-084533714ND
2020-01-084532923ND
2020-01-084532677ND
2020-01-084532733ND
2020-01-084532721ND
2020-01-084534056ND
2020-01-084534197ND
2020-01-084532705ND
2020-01-084533360ND
2020-01-084533810ND
2020-01-084533920ND
2020-01-084534050ND
2020-01-084533749ND
2020-01-084533720ND
2020-01-084532999ND
2020-01-084533836ND
2020-01-084533700ND
2020-01-084533073ND
2020-01-084533682ND
2020-01-084532887ND
2020-01-084533103ND
2020-01-084532796ND
2020-01-084533647ND
2020-01-084534009ND
2020-01-084533495ND
2020-01-084533189ND
2020-01-084533019ND
2020-01-084533909ND
2020-01-084532671ND
2020-01-084533661ND
2020-01-084533563ND
2020-01-084532789ND
2020-01-084532559ND
2020-01-084532942ND
2020-01-084532782ND
2020-01-084533259ND
2020-01-084532807ND
2020-01-084533885ND
2020-01-084532714ND
2020-01-084534293ND
2020-01-084533206ND
2020-01-084533037ND
2020-01-084532592ND
2020-01-084532655ND
2020-01-084533250ND
2020-01-084533170ND
2020-01-084532573ND
2020-01-084533013ND
2020-01-084534062ND
2020-01-084534191ND
2020-01-084533195ND
2020-01-084533671ND
2020-01-084532950ND
2020-01-084533993ND
2020-01-084533735ND
2020-01-084532580ND
2020-01-084533819ND
2020-01-084533827ND
2020-01-084533523ND
2020-01-084532727ND
2020-01-084533877ND
2020-01-224546471ND
2020-01-224546230ND
2020-01-224546160ND
2020-01-224546476ND
2020-01-224546320ND
2020-01-224546315ND
2020-01-224546309ND
2020-01-224546394ND
2020-01-224546301ND
2020-01-234547437ND
2020-01-234547291ND
2020-01-234547576ND
2020-01-234547592ND
2020-01-234547924ND
2020-01-234547611ND
2020-01-234547621ND
2020-01-234547305ND
2020-01-294552758ND
2020-01-294552695ND
2020-01-294552746ND
2020-03-054580611ND
2020-03-054580635ND
2020-03-054580618ND
2020-03-054580630ND
2020-07-064664729ND
2020-07-064664765ND
2020-07-064664698ND
2020-07-064664514ND
2020-07-064664647ND
2020-07-064664530ND
2020-07-064664667ND
2020-07-064664715ND
2020-07-064664808ND
2020-07-064664791ND
2020-07-064664800ND
2020-07-064664771ND
2020-07-064664536ND
2020-07-064664571ND
2020-07-064664593ND
2020-07-074666160ND
2020-07-074666253ND
2020-07-074666100ND
2020-07-074666007ND
2020-07-074666145ND
2020-07-074666042ND
2020-07-074666244ND
2020-07-074666088ND
2020-07-074666321ND
2020-07-074666172ND
2020-07-074666261ND
2020-07-074666133ND
2020-07-074666314ND
2020-07-074666139ND
2020-07-074666154ND
2020-07-084667122ND
2020-07-084667115ND
2020-07-084667327ND
2020-07-084667108ND
2020-07-084667356ND
2020-07-084667349ND
2020-07-084667319ND
2020-07-084667461ND
2020-07-084667226ND
2020-07-084667312ND
2020-07-084667129ND
2020-07-084667153ND
2020-07-084667403ND
2020-07-094668875ND
2020-07-094668726ND
2020-07-094668814ND
2020-07-094668823ND
2020-07-094668794ND
2020-07-094668895ND
2020-07-094668716ND
2020-07-094668905ND
2020-07-094668889ND
2020-07-094668846ND
2020-07-134670885ND
2020-07-134670817ND
2020-07-134670827ND
2020-07-134670833ND
2020-07-134670853ND
2020-07-134670811ND
2020-07-134670859ND
2020-07-134670871ND
2020-07-144672458ND
2020-07-144672631ND
2020-07-144672876ND
2020-07-144672603ND
2020-07-144672849ND
2020-07-144672729ND
2020-07-144672682ND
2020-07-144672469ND
2020-07-144672917ND
2020-07-144672613ND
2020-07-144672818ND
2020-07-154673947ND
2020-07-154673803ND
2020-07-154673766ND
2020-07-154674036ND
2020-07-154673820ND
2020-07-154673854ND
2020-07-154673686ND
2020-07-154673953ND
2020-07-154674009ND
2020-07-154673889ND
2020-07-154674063ND
2020-07-154673993ND
2020-07-164675146ND
2020-07-164675492ND
2020-07-164675500ND
2020-07-164675538ND
2020-07-164675727ND
2020-07-164675736ND
2020-07-164675529ND
2020-07-204677605ND
2020-07-204677636ND
2020-07-204677625ND
2020-07-204677646ND
2020-07-204677655ND
2020-07-214678733ND
2020-07-214678759ND
2020-07-214678821ND
2020-07-214678874ND
2020-07-214678719ND