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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Fort Sam Houston

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

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND10ND
2016ND20ND
2017ND50ND
2018ND20ND
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
2015-03-23AC85766ND
2016-09-28AD51775ND
2016-12-15AD62487ND
2017-01-30AD67695ND
2017-04-24AD80805ND
2017-04-24AD80804ND
2017-07-07AD88751ND
2017-10-10AE00199ND
2018-01-18AE09340ND
2018-04-20AE23582ND