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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Paw Penn District

Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.

MORE ABOUT THIS CONTAMINANT

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015N/A00N/A
2016N/A00N/A
2017ND140ND
2018N/A00N/A
2019ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for alachlor, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-0125337701ND
2014-04-0125337901ND
2014-04-0225337201ND
2014-04-0225338601ND
2014-04-0225337501ND
2014-04-0425337101ND
2014-04-0425338401ND
2014-04-0425338101ND
2014-07-0726114201ND
2014-07-0726113001ND
2014-07-0726113501ND
2014-07-0926113701ND
2014-07-0926114001ND
2014-07-0926113301ND
2014-07-0926113101ND
2014-09-0426113901ND
2017-04-0315975903ND
2017-04-0315975872ND
2017-04-0315975841ND
2017-04-0315975812ND
2017-04-0315975781ND
2017-04-0315975934ND
2017-04-0315975752ND
2017-07-0616450229ND
2017-07-0616450258ND
2017-07-0616450289ND
2017-07-0616450351ND
2017-07-1116450171ND
2017-07-1116450320ND
2017-07-1116450200ND
2019-07-1545716201ND
2019-10-3143999701ND