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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Kalaheo-Koloa

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
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017ND10ND
2018ND210ND
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
2017-05-16ND
2018-01-29201801310036ND
2018-04-18C18-04-0207ND
2018-04-18C18-04-0211ND
2018-04-18C18-04-0210AND
2018-04-18C18-04-0209ND
2018-04-18C18-04-0208ND
2018-06-04C18-06-0012ND
2018-06-05C18-06-0038ND
2018-06-05C18-06-0036ND
2018-06-05C18-06-0037ND
2018-09-10C18-09-0221ND
2018-09-10C18-09-0220ND
2018-09-11C18-09-0223ND
2018-09-11C18-09-0224ND
2018-09-11C18-09-0225ND
2018-09-12C18-09-0250ND
2018-09-12C18-09-0248ND
2018-09-12C18-09-0252AND
2018-09-12C18-09-0251ND
2018-09-12C18-09-0249ND
2018-10-09C18-10-0045AND
2019-01-30201901310193ND
2019-06-19C19-06-0091AND
2019-07-17C19-07-0161AND
2019-10-21C19-10-0078AND