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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Centennial Park Domestic Water Improvement District

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

 

20

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
2015N/A00N/A
2016ND10ND
2017ND160ND
2018ND30ND
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
2016-08-29201608300195SND
2017-02-21201702220064SND
2017-02-21201702220063SND
2017-02-21201702220062SND
2017-03-13201703140304SND
2017-05-30201705310046SND
2017-05-30201705310045SND
2017-05-30201705310044SND
2017-05-30201705310043SND
2017-08-23201708240181SND
2017-08-23201708240180SND
2017-08-23201708240179SND
2017-08-23201708240178SND
2017-10-23201710240243SND
2017-10-23201710240242SND
2017-10-23201710240241SND
2017-10-23201710240240SND
2018-05-30201805310330SND
2018-05-30201805310328SND
2018-09-11201809120454SND