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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Iola, City of

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

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND10ND
2017ND10ND
2018ND20ND
2019ND50ND

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
2014-06-03123236ND
2015-05-19334530ND
2016-05-17547603ND
2017-05-29768165ND
2018-05-21973880ND
2018-10-151061396ND
2019-03-051131765ND
2019-05-061157777ND
2019-05-061157780ND
2019-08-121222762ND
2019-11-041268851ND