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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Community WC of Green Valley

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

 

14

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
2014ND10ND
2015N/A00N/A
2016ND60ND
2017ND10ND
2018N/A00N/A
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 Lab ID Result
2014-03-194031553-03SND
2016-06-276062198-01SND
2016-06-276062198-02SND
2016-06-276062198-03SND
2016-06-276062198-04SND
2016-10-316102677-03ND
2016-10-316102677-04ND
2017-01-177011518-03SND
2019-01-2919A2999-01ND
2019-01-2919A2999-02ND
2019-01-2919A2999-03ND
2019-01-2919A2999-04ND
2019-07-3019G3440-01ND
2019-07-3019G3440-02ND