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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Oakdale

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

 

19

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
2015ND20ND
2016ND110ND
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
2015-05-1815E1325-01ND
2015-11-1015K0642-01ND
2016-07-193497660ND
2016-07-193497669ND
2016-07-193497709ND
2016-07-193497737ND
2016-07-193497756ND
2016-07-193497770ND
2016-12-143605342ND
2016-12-143605357ND
2016-12-143605352ND
2016-12-143605347ND
2016-12-143605328ND
2018-09-2518I1233-01ND
2018-09-2518I1233-02ND
2018-11-2818K1049-01ND
2018-11-2818K1049-02ND
2019-09-3019I2799-01ND
2019-10-2119J1159-01ND