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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Town of Ferriday Water System

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

MORE ABOUT THIS CONTAMINANT

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND60ND
2016ND80ND
2017N/A00N/A
2018N/A00N/A
2019ND80ND

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
2014-03-17AD89796ND
2014-03-17AD89796ND
2015-07-1335197766003ND
2015-07-1335197766003ND
2015-08-1735203233006ND
2015-08-1735203233006ND
2015-09-1635208078002ND
2015-09-1635208078002ND
2016-10-1335270878004ND
2016-10-1335270878003ND
2016-10-1335270878002ND
2016-10-1335270878001ND
2016-10-1335270878004ND
2016-10-1335270878003ND
2016-10-1335270878002ND
2016-10-1335270878001ND
2019-08-1535491138001ND
2019-08-1535491138004ND
2019-08-1535491138003ND
2019-08-1535491138002ND
2019-08-1535491138001ND
2019-08-1535491138004ND
2019-08-1535491138003ND
2019-08-1535491138002ND