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EWG's Tap Water Database — 2019 UPDATE

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Alachlor (Lasso)

Harris County MUD 165

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

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND10ND
2014N/A00N/A
2015ND20ND
2016ND10ND
2017N/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
2012-01-11AB77577ND
2012-01-11AB77576ND
2013-06-13AC22142ND
2015-05-27AC93470ND
2015-05-27AC93466ND
2016-03-21AD29762ND