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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Southern California Edison Company-Santa Catalina

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

MORE ABOUT THIS CONTAMINANT

 

43

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND230ND
2015N/A00N/A
2016N/A00N/A
2017ND50ND
2018ND150ND
2019N/A00N/A

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
2014-01-029588-041-1145ND
2014-03-139588-041-1030ND
2014-03-149588-006-1050ND
2014-03-149588-005-1108ND
2014-03-149588-016-1010ND
2014-03-189588-019-0950ND
2014-03-189588-012-1415ND
2014-03-189588-014-1158ND
2014-03-189588-020-1038ND
2014-03-189588-030-1224ND
2014-03-189588-031-1232ND
2014-06-199588-041-1115ND
2014-07-109588-012-1030ND
2014-07-179588-020-1425ND
2014-07-179588-019-1250ND
2014-07-189588-016-1130ND
2014-07-189588-023-1100ND
2014-07-189588-012-1255ND
2014-07-189588-030-1215ND
2014-07-189588-006-1100ND
2014-07-219588-014-1130ND
2014-10-229588-012-1100ND
2014-11-049588-005-1108ND
2017-05-189588-023-1100ND
2017-09-259588-006-1330ND
2017-09-259588-023-1100ND
2017-09-269588-020-1015ND
2017-09-269588-019-0920ND
2018-03-199588-006-1200ND
2018-03-199588-012-1130ND
2018-03-209588-005-1300ND
2018-03-209588-031-1030ND
2018-03-209588-016-1040ND
2018-06-229588-005-1240ND
2018-06-229588-006-1215ND
2018-06-259588-016-1210ND
2018-06-259588-014-1120ND
2018-06-259588-019-1030ND
2018-06-259588-020-1200ND
2018-06-259588-023-1030ND
2018-06-259588-030-1120ND
2018-06-259588-031-1220ND
2018-06-269588-012-1100ND