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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Desert Water Agency

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

MORE ABOUT THIS CONTAMINANT

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND210ND
2015ND10ND
2016ND90ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-05-143761-019-0955ND
2014-06-043761-010-1110ND
2014-06-043761-008-0920ND
2014-06-043761-017-0850ND
2014-06-253761-060-1045ND
2014-07-013761-039-1000ND
2014-07-023761-032-1115ND
2014-07-023761-027-1150ND
2014-07-023761-026-1150ND
2014-07-023761-025-1010ND
2014-07-023761-022-0940ND
2014-07-023761-038-1115ND
2014-07-093761-031-1210ND
2014-07-093761-023-1045ND
2014-07-163761-020-1145ND
2014-07-163761-034-1040ND
2014-07-233761-030-0830ND
2014-07-233761-015-0930ND
2014-07-303761-024-1015ND
2014-07-303761-029-1115ND
2014-08-203761-037-1030ND
2015-05-063761-045-1200ND
2016-05-043761-043-1030ND
2016-05-183761-030-1100ND
2016-06-083761-024-1015ND
2016-06-083761-044-0945ND
2016-06-153761-018-1150ND
2016-06-153761-046-1045ND
2016-06-153761-033-0000ND
2016-06-293761-040-1130ND
2016-09-073761-047-1010ND
2017-09-203761-045-1130ND
2017-11-083761-028-1130ND
2018-01-193761-033-1110ND
2018-01-193761-040-0750ND
2019-06-194790-033-1430ND
2019-06-194790-040-1000ND