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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

City of Hanford

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

MORE ABOUT THIS CONTAMINANT

 

25

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
2014ND20ND
2015ND20ND
2016ND100ND
2017ND10ND
2018ND20ND
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
2014-02-045810-034-0849ND
2014-06-175810-034-1125ND
2015-12-145810-033-0840ND
2015-12-145810-036-1220ND
2016-03-085810-038-1000ND
2016-03-085810-043-1330ND
2016-03-085810-042-1300ND
2016-03-085810-039-0905ND
2016-03-085810-037-1100ND
2016-03-095810-040-1125ND
2016-03-095810-041-0935ND
2016-03-095810-031-1025ND
2016-03-095810-028-1300ND
2016-03-105810-026-1300ND
2017-07-135810-034-0955ND
2018-12-175810-036-1145ND
2018-12-185810-033-1120ND
2019-03-135810-031-1210ND
2019-03-135810-042-1125ND
2019-03-135810-043-0830ND
2019-03-145810-037-1110ND
2019-03-145810-040-0840ND
2019-03-145810-041-0915ND
2019-03-145810-028-1005ND
2019-05-095810-039-1100ND