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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Makawao

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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND10ND
2016ND10ND
2017ND80ND
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
2014-03-17201403190888ND
2014-03-17201403190889ND
2014-03-17201403190885ND
2014-03-18201403200528ND
2014-04-29201405010562ND
2014-04-29201405010616ND
2014-04-29201405010665ND
2014-05-01201405050006ND
2015-01-28201501300213ND
2016-02-19ND
2017-01-27ND
2017-01-31ND
2017-01-31ND
2017-01-31ND
2017-09-07ND
2017-10-25ND
2017-10-25ND
2017-10-25ND
2018-02-01201802020127ND
2019-01-30201902010195ND