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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Golden State Water Company - Tanglewood

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

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND10ND
2016ND20ND
2017N/A00N/A
2018ND10ND
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
2014-01-080007-009-0915ND
2014-01-082706-009-0915ND
2014-04-020007-009-1015ND
2014-04-022706-009-1015ND
2014-07-302706-009-1055ND
2015-01-212706-009-0800ND
2016-08-102706-009-0805ND
2016-08-102706-009-0830ND
2018-02-139590-009-1105ND