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EWG's Tap Water Database — 2019 UPDATE

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Alachlor (Lasso)

Signal Hill - City, Water Department

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
2012N/A00N/A
2013ND20ND
2014N/A00N/A
2015N/A00N/A
2016ND10ND
2017ND20ND

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
2013-10-222706-006-0715ND
2013-10-229590-006-0715ND
2016-10-209588-005-1110ND
2017-01-199588-005-0950ND
2017-04-209588-005-1010ND