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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Town of Queen Creek

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

MORE ABOUT THIS CONTAMINANT

 

45

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
2014N/A00N/A
2015ND20ND
2016ND100ND
2017ND120ND
2018ND130ND
2019ND80ND

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
2015-03-04201503040378SND
2015-07-21201507210224SND
2016-06-08201606080194SND
2016-06-08201606080193SND
2016-06-08201606080192SND
2016-06-08201606080191SND
2016-06-08201606080190SND
2016-08-04201608040124SND
2016-08-04201608040123SND
2016-08-04201608040125SND
2016-08-04201608040126SND
2016-08-04201608040127SND
2017-03-15201703150338SND
2017-03-15201703150337SND
2017-03-15201703150336SND
2017-03-15201703150335SND
2017-03-15201703150334SND
2017-03-15201703150333SND
2017-07-06201707060491SND
2017-07-06201707060495SND
2017-07-06201707060494SND
2017-07-06201707060493SND
2017-07-06201707060492SND
2017-07-06201707060490SND
2018-01-18201801180389SND
2018-04-24201804250395SND
2018-04-24201804250394SND
2018-04-24201804250393SND
2018-05-30201805310315SND
2018-05-30201805310314SND
2018-07-18201807180471SND
2018-07-18201807180472SND
2018-07-18201807180473SND
2018-07-18201807180474SND
2018-08-01201808020188SND
2018-08-01201808020184SND
2018-10-03201810030298SND
2019-02-13201902130126SND
2019-02-13201902130125SND
2019-06-03201906030209SND
2019-06-03201906030208SND
2019-07-25201907250175SND
2019-09-19201909190002SND
2019-10-24201910240411SND
2019-10-24201910240412SND