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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

USAF Davis Monthan AFB

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

 

16

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
2015ND100ND
2016N/A00N/A
2017N/A00N/A
2018ND40ND
2019ND20ND

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
2015-01-133170912ND
2015-01-133170920ND
2015-01-133170929ND
2015-01-133170936ND
2015-01-133170944ND
2015-07-213285155ND
2015-07-213285162ND
2015-07-213285169ND
2015-07-213285176ND
2015-07-303290271ND
2018-01-253860653ND
2018-01-253860659ND
2018-01-253860665ND
2018-01-253860671ND
2019-02-144201405ND
2019-02-144201411ND