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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Butler County Water Authority

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

 

16

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

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
2016-01-14160114061-1ND
2016-01-14160114061-4ND
2016-01-14160114061-3ND
2016-01-14160114061-2ND
2016-04-11160412001-4ND
2016-04-11160412001-1ND
2016-04-11160412001-3ND
2016-04-11160412001-2ND
2019-01-1719010517-002DND
2019-01-1719010517-001DND
2019-05-3020105982001_ISOCND
2019-05-3020105982002_ISOCND
2019-06-2020109311002_ISOCND
2019-06-2020109311001_ISOCND
2019-07-1120112547002_ISOCND
2019-07-1120112547001_ISOCND