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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

West Kern Water District

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

MORE ABOUT THIS CONTAMINANT

 

31

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
2014ND10ND
2015ND50ND
2016ND20ND
2017N/A00N/A
2018ND110ND
2019ND120ND

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
2014-01-085810-021-1115ND
2015-06-245810-020-0820ND
2015-06-245810-018-0945ND
2015-06-245810-017-0735ND
2015-06-245810-016-0905ND
2015-09-095810-019-0845ND
2016-08-175806-002-0825ND
2016-09-075806-021-0825ND
2018-06-065806-021-0850ND
2018-06-065806-020-0945ND
2018-06-065806-019-0900ND
2018-06-065806-018-1020ND
2018-06-065806-016-0810ND
2018-08-015806-017-0835ND
2018-10-245806-016-0840ND
2018-10-245806-021-1045ND
2018-10-255806-017-1000ND
2018-10-255806-020-0840ND
2018-11-085806-019-1230ND
2019-07-015810-015-1200ND
2019-07-015810-014-1200ND
2019-07-015810-013-1200ND
2019-07-015810-005-1200ND
2019-07-015810-004-1200ND
2019-07-015810-002-1200ND
2019-10-025806-015-1135ND
2019-10-025806-014-0925ND
2019-10-025806-013-1155ND
2019-10-025806-005-1220ND
2019-10-025806-004-0955ND
2019-10-025806-002-1110ND