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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

East Cherry Creek Valley Water and Sanitation District

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

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44

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND160ND
2016ND60ND
2017ND10ND
2018ND20ND
2019ND190ND

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 Result
2015-03-17ND
2015-03-17ND
2015-03-17ND
2015-03-17ND
2015-03-18ND
2015-03-18ND
2015-03-18ND
2015-06-08ND
2015-06-08ND
2015-06-08ND
2015-06-08ND
2015-06-23ND
2015-06-23ND
2015-06-23ND
2015-06-23ND
2015-09-29ND
2016-08-03ND
2016-08-25ND
2016-08-31ND
2016-12-01ND
2016-12-01ND
2016-12-19ND
2017-11-07ND
2018-02-06ND
2018-04-12ND
2019-04-22ND
2019-04-22ND
2019-06-07ND
2019-06-11ND
2019-06-11ND
2019-06-11ND
2019-06-21ND
2019-06-24ND
2019-06-25ND
2019-06-27ND
2019-10-24ND
2019-10-28ND
2019-11-14ND
2019-11-14ND
2019-11-14ND
2019-12-03ND
2019-12-09ND
2019-12-10ND
2019-12-12ND