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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Cottonwood Municipal Water Vv6

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

MORE ABOUT THIS CONTAMINANT

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND120ND
2017N/A00N/A
2018N/A00N/A
2019ND120ND

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
2016-03-07201603090133SND
2016-03-08201603090138SND
2016-03-08201603090137SND
2016-03-08201603090136SND
2016-03-08201603090135SND
2016-03-08201603090134SND
2016-08-23201608240087SND
2016-08-23201608240092SND
2016-08-23201608240091SND
2016-08-23201608240090SND
2016-08-23201608240089SND
2016-08-23201608240088SND
2019-02-19201902200073SND
2019-02-19201902200072SND
2019-02-19201902200071SND
2019-02-19201902200070SND
2019-02-19201902200069SND
2019-02-19201902200068SND
2019-05-07201905080028SND
2019-05-07201905080033SND
2019-05-07201905080032SND
2019-05-07201905080031SND
2019-05-07201905080030SND
2019-05-07201905080029SND