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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Waterloo Water Works

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

 

8

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
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND80ND
2019N/A00N/A

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
2018-10-021J80462-01ND
2018-10-021J80470-01ND
2018-10-021J80478-01ND
2018-10-021J80498-01ND
2018-10-031J80467-01ND
2018-10-031J80483-01ND
2018-10-031J80489-01ND
2018-10-031J80493-01ND