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EWG's Tap Water Database — 2019 UPDATE

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Alachlor (Lasso)

California Water Service Co-leona Valley

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

 

5

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013N/A00N/A
2014N/A00N/A
2015ND20ND
2016N/A00N/A
2017ND10ND

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
2012-02-145810-006-1101ND
2012-05-155810-001-1329ND
2015-02-025810-006-1424ND
2015-05-045810-001-1539ND
2017-11-289590-001-1029ND