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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

St Bernard Parish Waterworks

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

MORE ABOUT THIS CONTAMINANT

 

24

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
2014ND60ND
2015ND40ND
2016ND40ND
2017ND20ND
2018ND40ND
2019ND40ND

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
2014-01-21AD88468ND
2014-01-21AD88468ND
2014-10-03AD98042ND
2014-10-03AD98042ND
2014-10-23AD98832ND
2014-10-23AD98832ND
2015-03-3035181567002ND
2015-03-3035181567002ND
2015-10-0635211176004ND
2015-10-0635211176004ND
2016-02-1735230188004ND
2016-02-1735230188004ND
2016-12-0835282294002ND
2016-12-0835282294002ND
2017-02-1635296025001ND
2017-02-1635296025001ND
2018-03-0635378295001ND
2018-03-0635378295001ND
2018-09-2435419983001ND
2018-09-2435419983001ND
2019-02-1435448755001ND
2019-02-1435448755001ND
2019-09-2435500301001ND
2019-09-2435500301001ND