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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Copper Mountain Consolidated Md

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

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND60ND
2016N/A00N/A
2017N/A00N/A
2018ND20ND
2019ND60ND

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 Result
2014-02-04ND
2014-02-04ND
2014-02-10ND
2015-06-16ND
2015-06-16ND
2015-06-16ND
2015-07-07ND
2015-07-07ND
2015-07-07ND
2018-06-18ND
2018-10-02ND
2019-01-08ND
2019-02-05ND
2019-04-01ND
2019-04-01ND
2019-07-02ND
2019-10-08ND