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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

City of Winston-Salem

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

MORE ABOUT THIS CONTAMINANT

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND30ND
2016N/A00N/A
2017ND40ND
2018ND80ND
2019ND40ND

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
2014-01-068881-010614-EP3SND
2014-01-068881-010614-EP2SND
2014-05-058881-050514-EP2SND
2014-05-058881-050514-EP3SND
2015-02-02ND
2015-04-13ND
2015-04-13ND
2017-01-238881-012317-EP2SND
2017-01-238881-012317-EP3SND
2017-05-158881-051517-EP3SND
2017-06-128881-061217-EP2SND
2018-01-228881-012218-EP3SND
2018-01-228881-012218-EP2SND
2018-01-228881-012218-EP1SND
2018-04-028881-040218-EP1SND
2018-04-028881-040218-EP2SND
2018-04-028881-040218-EP3SND
2018-08-068881-080618-EP2SND
2018-10-088881-100818-EP2SND
2019-01-078881_010719_EP2SND
2019-04-018881-040119-EP2SND
2019-07-018881-070119-EP2SND
2019-10-078881-100719-EP2SND