Know Your Environment. Protect Your Health.

Alachlor (Lasso)

North Wales Water Authority

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

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND200ND
2021ND10ND
2022ND10ND
2023ND140ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-04-092308183001ND
2019-04-089043206-01ND
2020-04-0122025490.00ND
2020-04-2022026185.00ND
2020-04-2022026095.00ND
2020-04-2022026155.00ND
2020-04-2022026125.00ND
2020-04-2722217286.00ND
2020-04-2722217316.00ND
2020-04-2722217403.00ND
2020-04-2722217376.00ND
2020-04-2722217346.00ND
2020-07-0622609713.00ND
2020-07-2722801123.00ND
2020-07-2722801154.00ND
2020-07-2722801191.00ND
2020-07-2722801093.00ND
2020-07-2722801214.00ND
2020-08-3123001487.00ND
2020-08-3123001515.00ND
2020-08-3123001459.00ND
2020-08-3123001431.00ND
2021-04-0724250228.00ND
2022-04-0426466010.00ND
2023-04-0328704996.00ND
2023-04-0328704998.00ND
2023-04-0328704995.00ND
2023-04-0328704994.00ND
2023-04-0328704997.00ND
2023-05-1028902337.00ND
2023-06-0529110389.00ND
2023-07-1029304373.00ND
2023-07-1029304379.00ND
2023-07-1029304376.00ND
2023-07-1029304374.00ND
2023-07-1129304377.00ND
2023-07-1129304378.00ND
2023-07-1129304375.00ND