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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Chetopa, City of

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

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND10ND
2017ND20ND
2018ND10ND
2019ND10ND

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
2014-05-20117871ND
2014-05-20117882ND
2014-05-20117884ND
2014-10-28221604ND
2015-01-27268325ND
2015-04-28320216ND
2015-07-28375435ND
2015-10-26418758ND
2016-05-30554708ND
2017-05-08756585ND
2017-05-21764801ND
2018-05-07967391ND
2019-05-201157224ND