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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Metropolitan District Commission

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

 

13

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
2014N/A00N/A
2015ND60ND
2016N/A00N/A
2017N/A00N/A
2018ND70ND
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
2015-07-30BJ65998SOC2ND
2015-07-30BJ65997SOC2ND
2015-07-30BJ65999SOC2ND
2015-10-22BK12467SOC2ND
2015-10-22BK12468SOC2ND
2015-10-22BK12469SOC2ND
2018-06-27CA79475ND
2018-06-27CA79476ND
2018-06-27CA79477ND
2018-09-25CB38504ND
2018-09-25CB38505RND
2018-09-25CB38869ND
2018-09-25CB38505ND