Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Alachlor (Lasso)

Manchester Water Department

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

MORE ABOUT THIS CONTAMINANT

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND70ND
2016N/A00N/A
2017N/A00N/A
2018ND70ND
2019ND100ND

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
2014-05-05AA65112-SOC2ND
2014-05-05AA65113-SOC2ND
2014-05-05AA65105-SOC2ND
2014-05-06AA65126-SOC2ND
2014-05-06AA65127-SOC2ND
2014-05-07AA65143-SOC2ND
2014-05-07AA65144-SOC2ND
2015-04-27AA69419-SOC2ND
2015-04-27AA69420-SOC2ND
2015-04-28AA69437-SOC2ND
2015-04-28AA69438-SOC2ND
2015-04-29AA69445-SOC2ND
2015-04-29AA69452-SOC2ND
2015-04-29AA69453-SOC2ND
2018-06-13AA84270-SOC2ND
2018-06-13AA84269-SOC2ND
2018-06-26AA84433-SOC2ND
2018-06-27AA84458-SOC2ND
2018-06-27AA84459-SOC2ND
2018-06-29AA84479-SOC2ND
2018-06-29AA84480-SOC2ND
2019-09-16AA90007-SOC2ND
2019-09-16AA89985-SOC2ND
2019-09-16AA89986-SOC2ND
2019-09-16AA89986-SOC2ND
2019-09-16AA90001-SOC2ND
2019-09-16AA90001-SOC2ND
2019-09-16AA89989-SOC2ND
2019-09-17AA90002-SOC2ND
2019-09-17AA89998-SOC2ND
2019-09-17AA89998-SOC2ND