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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Tennessee Water Supply Corporation

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

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND30ND
2017ND40ND
2018ND10ND
2019ND10ND

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
2014-09-26Q1448992004ND
2015-03-26Q1511320003ND
2016-05-12Q1618971003ND
2016-09-30Q1641547001ND
2016-10-18Q1644735001ND
2017-03-16Q1711519003ND
2017-05-31Q1723156001ND
2017-09-14Q1743708001ND
2017-11-29Q1760983001ND
2018-11-14Q1846426006ND
2019-12-05Q1979154003ND