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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Southern Nevada Water System

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

MORE ABOUT THIS CONTAMINANT

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND110ND
2016ND70ND
2017ND60ND
2018ND60ND
2019ND50ND

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
2014-02-1814020225-002ND
2014-02-1814020235-002ND
2014-08-1814080245-003ND
2014-08-1914080292-002ND
2015-02-1715020219-002ND
2015-02-1815020285-003ND
2015-05-0415040556-001ND
2015-08-2415080364-003ND
2015-08-2615080480-002ND
2015-09-2815090448-002AND
2015-09-2815090448-003AND
2015-11-1015110168-002ND
2015-11-1015110168-003ND
2015-12-2115120302-003ND
2015-12-2115120302-002ND
2016-02-0816020070-003ND
2016-02-0916020130-002ND
2016-05-2316050225-002ND
2016-05-2316050225-003ND
2016-08-09S1603584001ND
2016-08-09S1604052001ND
2016-08-09S1603584002ND
2017-02-13S1701128002ND
2017-02-14S1701207001ND
2017-05-22S1701203003ND
2017-05-22S1701203002ND
2017-08-28S1703629001ND
2017-08-28S1703629002ND
2018-02-06S1708762003ND
2018-02-06S1708762002ND
2018-02-06S1708762001ND
2018-08-07S1803807001ND
2018-08-07S1803807002ND
2018-08-07S1803807003ND
2019-02-12S1805444002ND
2019-02-12S1805444003ND
2019-02-12S1805444001ND
2019-08-13S1922741003ND
2019-08-13S1922741002ND