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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

South Kona

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

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015N/A00N/A
2016ND40ND
2017ND70ND
2018N/A00N/A
2019N/A00N/A

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
2014-03-18C14-03-0140ND
2014-03-18C14-03-0139ND
2014-04-15C14-04-0209ND
2014-04-15C14-04-0210AND
2014-07-07C14-07-0099ND
2014-07-07C14-07-0100ND
2014-10-06C14-10-0061ND
2014-10-06C14-10-0062AND
2016-03-07ND
2016-03-07ND
2016-08-24ND
2016-08-24ND
2017-03-14ND
2017-03-14ND
2017-03-14ND
2017-03-14ND
2017-06-19ND
2017-06-19ND
2017-06-19ND