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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

City of Phoenix

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

MORE ABOUT THIS CONTAMINANT

 

103

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
2014ND220ND
2015ND30ND
2016ND20ND
2017ND440ND
2018ND250ND
2019ND70ND

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
2014-01-08201401080632SND
2014-01-15201401150537SND
2014-01-15201401170162SND
2014-01-16201401160568SND
2014-01-16201401170153SND
2014-01-21201401210419SND
2014-01-21201401210437SND
2014-02-122873245ND
2014-02-18201402180229SND
2014-02-19201402190362SND
2014-02-26201402260762SND
2014-04-07201404080428SND
2014-07-01201407010326SND
2014-07-01201407010385SND
2014-07-02201407020640SND
2014-07-08201407090997SND
2014-07-09201407090990SND
2014-07-15201407150420SND
2014-07-16201407160711SND
2014-07-22201407220312SND
2014-07-23201407230689SND
2014-07-23201407230696SND
2015-02-03201502030363SND
2015-07-08201507090340SND
2015-10-06201510060432SND
2016-01-05201601060237SND
2016-07-05201607050432SND
2017-01-04201701040662SND
2017-01-04201701050376SND
2017-01-04201701050396SND
2017-01-04201701050450SND
2017-01-04201701050475SND
2017-01-05201701050485SND
2017-01-10201701100450SND
2017-01-10201701100458SND
2017-01-11201701120603SND
2017-01-11201701120610SND
2017-01-17201701180214SND
2017-01-17201701180221SND
2017-01-18201701180237SND
2017-01-18201701180349SND
2017-01-25201701250388SND
2017-01-25201701250401SND
2017-02-01201702010374SND
2017-02-08201702080305SND
2017-02-22201702220343SND
2017-03-28201703280848SND
2017-04-27201704270389SND
2017-04-27201704270400SND
2017-07-05201707050526SND
2017-07-11201707110862SND
2017-07-11201707110868SND
2017-07-12201707130577SND
2017-07-12201707130583SND
2017-07-13201707130590SND
2017-07-13201707130596SND
2017-07-13201707130600SND
2017-07-13201707130607SND
2017-07-13201707130643SND
2017-07-18201707190868SND
2017-07-19201707190851SND
2017-07-26201707280154SND
2017-07-27201707280164SND
2017-07-27201707280177SND
2017-08-01201708020900SND
2017-08-01201708020915SND
2017-08-02201708030619SND
2017-08-02201708030625SND
2017-08-03201708030640SND
2017-10-10201710100358SND
2017-10-12201710120504SND
2018-04-03201804030477SND
2018-04-04201804040801SND
2018-04-04201804040808SND
2018-04-10201804100286SND
2018-04-12201804120897SND
2018-04-17201804180654SND
2018-04-19201804190476SND
2018-04-19201804190482SND
2018-04-26201804260505SND
2018-04-26201804260511SND
2018-05-09201805100697SND
2018-07-18201807180599SND
2018-07-26201807260412SND
2018-10-01201810010202SND
2018-10-02201810020708SND
2018-10-10201810100938SND
2018-10-10201810100944SND
2018-10-11201810110663SND
2018-10-16201810160506SND
2018-10-18201810190029SND
2018-10-24201810250274SND
2018-10-25201810250283SND
2018-10-30201810310413SND
2018-10-30201810310423SND
2018-11-29201811290360SND
2019-01-16201901160414SND
2019-01-29201901290199SND
2019-04-16201904160462SND
2019-04-24201904240284SND
2019-07-25201907250231SND
2019-10-17201910170327SND
2019-11-05201911051070SND