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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

S L M Water Commission

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

MORE ABOUT THIS CONTAMINANT

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND50ND
2016ND40ND
2017ND50ND
2018ND40ND
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
2014-02-03SB40054-01_01ND
2014-05-07SE40372-01_01ND
2014-08-18SH41331-01_01ND
2014-11-05SK40161-01_01ND
2015-02-04SB50108-01_01ND
2015-05-11SE50410-01_01ND
2015-06-01SF50069-01_01ND
2015-09-09SI50455-01_01ND
2015-10-20SJ50844-01_01ND
2016-02-0816B0304-01_01ND
2016-04-0516D0097-01_01ND
2016-07-2516G1120-01_01ND
2016-10-1916J0784-01_01ND
2017-03-1417C0385-01_01ND
2017-04-2617D0717-01_01ND
2017-06-0717F0397-01_01ND
2017-08-0917H0733-01_01ND
2017-11-0817K0320-01_01ND
2018-01-1618A0286-01_01ND
2018-05-0818E0393-01ND
2018-08-2218H1118-01ND
2018-10-3018J1017-01_01ND
2019-02-2619B0547-01ND
2019-06-1119F0337-01ND
2019-08-0719H0367-01ND
2019-10-2319J0875-01ND